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https://roadtraffic.az/era_cms/plugins/chart/Chart.bundle.js

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1/*!
2 * Chart.js
3 * http://chartjs.org/
4 * Version: 2.7.3
5 *
6 * Copyright 2018 Chart.js Contributors
7 * Released under the MIT license
8 * https://github.com/chartjs/Chart.js/blob/master/LICENSE.md
9 */
10(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.Chart = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
11/* MIT license */
12var colorNames = require(5);
13
14module.exports = {
15   getRgba: getRgba,
16   getHsla: getHsla,
17   getRgb: getRgb,
18   getHsl: getHsl,
19   getHwb: getHwb,
20   getAlpha: getAlpha,
21
22   hexString: hexString,
23   rgbString: rgbString,
24   rgbaString: rgbaString,
25   percentString: percentString,
26   percentaString: percentaString,
27   hslString: hslString,
28   hslaString: hslaString,
29   hwbString: hwbString,
30   keyword: keyword
31}
32
33function getRgba(string) {
34   if (!string) {
35      return;
36   }
37   var abbr =  /^#([a-fA-F0-9]{3})$/i,
38       hex =  /^#([a-fA-F0-9]{6})$/i,
39       rgba = /^rgba?\(\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/i,
40       per = /^rgba?\(\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/i,
41       keyword = /(\w+)/;
42
43   var rgb = [0, 0, 0],
44       a = 1,
45       match = string.match(abbr);
46   if (match) {
47      match = match[1];
48      for (var i = 0; i < rgb.length; i++) {
49         rgb[i] = parseInt(match[i] + match[i], 16);
50      }
51   }
52   else if (match = string.match(hex)) {
53      match = match[1];
54      for (var i = 0; i < rgb.length; i++) {
55         rgb[i] = parseInt(match.slice(i * 2, i * 2 + 2), 16);
56      }
57   }
58   else if (match = string.match(rgba)) {
59      for (var i = 0; i < rgb.length; i++) {
60         rgb[i] = parseInt(match[i + 1]);
61      }
62      a = parseFloat(match[4]);
63   }
64   else if (match = string.match(per)) {
65      for (var i = 0; i < rgb.length; i++) {
66         rgb[i] = Math.round(parseFloat(match[i + 1]) * 2.55);
67      }
68      a = parseFloat(match[4]);
69   }
70   else if (match = string.match(keyword)) {
71      if (match[1] == "transparent") {
72         return [0, 0, 0, 0];
73      }
74      rgb = colorNames[match[1]];
75      if (!rgb) {
76         return;
77      }
78   }
79
80   for (var i = 0; i < rgb.length; i++) {
81      rgb[i] = scale(rgb[i], 0, 255);
82   }
83   if (!a && a != 0) {
84      a = 1;
85   }
86   else {
87      a = scale(a, 0, 1);
88   }
89   rgb[3] = a;
90   return rgb;
91}
92
93function getHsla(string) {
94   if (!string) {
95      return;
96   }
97   var hsl = /^hsla?\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/;
98   var match = string.match(hsl);
99   if (match) {
100      var alpha = parseFloat(match[4]);
101      var h = scale(parseInt(match[1]), 0, 360),
102          s = scale(parseFloat(match[2]), 0, 100),
103          l = scale(parseFloat(match[3]), 0, 100),
104          a = scale(isNaN(alpha) ? 1 : alpha, 0, 1);
105      return [h, s, l, a];
106   }
107}
108
109function getHwb(string) {
110   if (!string) {
111      return;
112   }
113   var hwb = /^hwb\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/;
114   var match = string.match(hwb);
115   if (match) {
116    var alpha = parseFloat(match[4]);
117      var h = scale(parseInt(match[1]), 0, 360),
118          w = scale(parseFloat(match[2]), 0, 100),
119          b = scale(parseFloat(match[3]), 0, 100),
120          a = scale(isNaN(alpha) ? 1 : alpha, 0, 1);
121      return [h, w, b, a];
122   }
123}
124
125function getRgb(string) {
126   var rgba = getRgba(string);
127   return rgba && rgba.slice(0, 3);
128}
129
130function getHsl(string) {
131  var hsla = getHsla(string);
132  return hsla && hsla.slice(0, 3);
133}
134
135function getAlpha(string) {
136   var vals = getRgba(string);
137   if (vals) {
138      return vals[3];
139   }
140   else if (vals = getHsla(string)) {
141      return vals[3];
142   }
143   else if (vals = getHwb(string)) {
144      return vals[3];
145   }
146}
147
148// generators
149function hexString(rgb) {
150   return "#" + hexDouble(rgb[0]) + hexDouble(rgb[1])
151              + hexDouble(rgb[2]);
152}
153
154function rgbString(rgba, alpha) {
vendor: 14,231 bytes, lines 155-759
155   if (alpha < 1 || (rgba[3] && rgba[3] < 1)) {
156      return rgbaString(rgba, alpha);
157   }
158   return "rgb(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2] + ")";
159}
160
161function rgbaString(rgba, alpha) {
162   if (alpha === undefined) {
163      alpha = (rgba[3] !== undefined ? rgba[3] : 1);
164   }
165   return "rgba(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2]
166           + ", " + alpha + ")";
167}
168
169function percentString(rgba, alpha) {
170   if (alpha < 1 || (rgba[3] && rgba[3] < 1)) {
171      return percentaString(rgba, alpha);
172   }
173   var r = Math.round(rgba[0]/255 * 100),
174       g = Math.round(rgba[1]/255 * 100),
175       b = Math.round(rgba[2]/255 * 100);
176
177   return "rgb(" + r + "%, " + g + "%, " + b + "%)";
178}
179
180function percentaString(rgba, alpha) {
181   var r = Math.round(rgba[0]/255 * 100),
182       g = Math.round(rgba[1]/255 * 100),
183       b = Math.round(rgba[2]/255 * 100);
184   return "rgba(" + r + "%, " + g + "%, " + b + "%, " + (alpha || rgba[3] || 1) + ")";
185}
186
187function hslString(hsla, alpha) {
188   if (alpha < 1 || (hsla[3] && hsla[3] < 1)) {
189      return hslaString(hsla, alpha);
190   }
191   return "hsl(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%)";
192}
193
194function hslaString(hsla, alpha) {
195   if (alpha === undefined) {
196      alpha = (hsla[3] !== undefined ? hsla[3] : 1);
197   }
198   return "hsla(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%, "
199           + alpha + ")";
200}
201
202// hwb is a bit different than rgb(a) & hsl(a) since there is no alpha specific syntax
203// (hwb have alpha optional & 1 is default value)
204function hwbString(hwb, alpha) {
205   if (alpha === undefined) {
206      alpha = (hwb[3] !== undefined ? hwb[3] : 1);
207   }
208   return "hwb(" + hwb[0] + ", " + hwb[1] + "%, " + hwb[2] + "%"
209           + (alpha !== undefined && alpha !== 1 ? ", " + alpha : "") + ")";
210}
211
212function keyword(rgb) {
213  return reverseNames[rgb.slice(0, 3)];
214}
215
216// helpers
217function scale(num, min, max) {
218   return Math.min(Math.max(min, num), max);
219}
220
221function hexDouble(num) {
222  var str = num.toString(16).toUpperCase();
223  return (str.length < 2) ? "0" + str : str;
224}
225
226
227//create a list of reverse color names
228var reverseNames = {};
229for (var name in colorNames) {
230   reverseNames[colorNames[name]] = name;
231}
232
233},{"5":5}],2:[function(require,module,exports){
234/* MIT license */
235var convert = require(4);
236var string = require(1);
237
238var Color = function (obj) {
239	if (obj instanceof Color) {
240		return obj;
241	}
242	if (!(this instanceof Color)) {
243		return new Color(obj);
244	}
245
246	this.valid = false;
247	this.values = {
248		rgb: [0, 0, 0],
249		hsl: [0, 0, 0],
250		hsv: [0, 0, 0],
251		hwb: [0, 0, 0],
252		cmyk: [0, 0, 0, 0],
253		alpha: 1
254	};
255
256	// parse Color() argument
257	var vals;
258	if (typeof obj === 'string') {
259		vals = string.getRgba(obj);
260		if (vals) {
261			this.setValues('rgb', vals);
262		} else if (vals = string.getHsla(obj)) {
263			this.setValues('hsl', vals);
264		} else if (vals = string.getHwb(obj)) {
265			this.setValues('hwb', vals);
266		}
267	} else if (typeof obj === 'object') {
268		vals = obj;
269		if (vals.r !== undefined || vals.red !== undefined) {
270			this.setValues('rgb', vals);
271		} else if (vals.l !== undefined || vals.lightness !== undefined) {
272			this.setValues('hsl', vals);
273		} else if (vals.v !== undefined || vals.value !== undefined) {
274			this.setValues('hsv', vals);
275		} else if (vals.w !== undefined || vals.whiteness !== undefined) {
276			this.setValues('hwb', vals);
277		} else if (vals.c !== undefined || vals.cyan !== undefined) {
278			this.setValues('cmyk', vals);
279		}
280	}
281};
282
283Color.prototype = {
284	isValid: function () {
285		return this.valid;
286	},
287	rgb: function () {
288		return this.setSpace('rgb', arguments);
289	},
290	hsl: function () {
291		return this.setSpace('hsl', arguments);
292	},
293	hsv: function () {
294		return this.setSpace('hsv', arguments);
295	},
296	hwb: function () {
297		return this.setSpace('hwb', arguments);
298	},
299	cmyk: function () {
300		return this.setSpace('cmyk', arguments);
301	},
302
303	rgbArray: function () {
304		return this.values.rgb;
305	},
306	hslArray: function () {
307		return this.values.hsl;
308	},
309	hsvArray: function () {
310		return this.values.hsv;
311	},
312	hwbArray: function () {
313		var values = this.values;
314		if (values.alpha !== 1) {
315			return values.hwb.concat([values.alpha]);
316		}
317		return values.hwb;
318	},
319	cmykArray: function () {
320		return this.values.cmyk;
321	},
322	rgbaArray: function () {
323		var values = this.values;
324		return values.rgb.concat([values.alpha]);
325	},
326	hslaArray: function () {
327		var values = this.values;
328		return values.hsl.concat([values.alpha]);
329	},
330	alpha: function (val) {
331		if (val === undefined) {
332			return this.values.alpha;
333		}
334		this.setValues('alpha', val);
335		return this;
336	},
337
338	red: function (val) {
339		return this.setChannel('rgb', 0, val);
340	},
341	green: function (val) {
342		return this.setChannel('rgb', 1, val);
343	},
344	blue: function (val) {
345		return this.setChannel('rgb', 2, val);
346	},
347	hue: function (val) {
348		if (val) {
349			val %= 360;
350			val = val < 0 ? 360 + val : val;
351		}
352		return this.setChannel('hsl', 0, val);
353	},
354	saturation: function (val) {
355		return this.setChannel('hsl', 1, val);
356	},
357	lightness: function (val) {
358		return this.setChannel('hsl', 2, val);
359	},
360	saturationv: function (val) {
361		return this.setChannel('hsv', 1, val);
362	},
363	whiteness: function (val) {
364		return this.setChannel('hwb', 1, val);
365	},
366	blackness: function (val) {
367		return this.setChannel('hwb', 2, val);
368	},
369	value: function (val) {
370		return this.setChannel('hsv', 2, val);
371	},
372	cyan: function (val) {
373		return this.setChannel('cmyk', 0, val);
374	},
375	magenta: function (val) {
376		return this.setChannel('cmyk', 1, val);
377	},
378	yellow: function (val) {
379		return this.setChannel('cmyk', 2, val);
380	},
381	black: function (val) {
382		return this.setChannel('cmyk', 3, val);
383	},
384
385	hexString: function () {
386		return string.hexString(this.values.rgb);
387	},
388	rgbString: function () {
389		return string.rgbString(this.values.rgb, this.values.alpha);
390	},
391	rgbaString: function () {
392		return string.rgbaString(this.values.rgb, this.values.alpha);
393	},
394	percentString: function () {
395		return string.percentString(this.values.rgb, this.values.alpha);
396	},
397	hslString: function () {
398		return string.hslString(this.values.hsl, this.values.alpha);
399	},
400	hslaString: function () {
401		return string.hslaString(this.values.hsl, this.values.alpha);
402	},
403	hwbString: function () {
404		return string.hwbString(this.values.hwb, this.values.alpha);
405	},
406	keyword: function () {
407		return string.keyword(this.values.rgb, this.values.alpha);
408	},
409
410	rgbNumber: function () {
411		var rgb = this.values.rgb;
412		return (rgb[0] << 16) | (rgb[1] << 8) | rgb[2];
413	},
414
415	luminosity: function () {
416		// http://www.w3.org/TR/WCAG20/#relativeluminancedef
417		var rgb = this.values.rgb;
418		var lum = [];
419		for (var i = 0; i < rgb.length; i++) {
420			var chan = rgb[i] / 255;
421			lum[i] = (chan <= 0.03928) ? chan / 12.92 : Math.pow(((chan + 0.055) / 1.055), 2.4);
422		}
423		return 0.2126 * lum[0] + 0.7152 * lum[1] + 0.0722 * lum[2];
424	},
425
426	contrast: function (color2) {
427		// http://www.w3.org/TR/WCAG20/#contrast-ratiodef
428		var lum1 = this.luminosity();
429		var lum2 = color2.luminosity();
430		if (lum1 > lum2) {
431			return (lum1 + 0.05) / (lum2 + 0.05);
432		}
433		return (lum2 + 0.05) / (lum1 + 0.05);
434	},
435
436	level: function (color2) {
437		var contrastRatio = this.contrast(color2);
438		if (contrastRatio >= 7.1) {
439			return 'AAA';
440		}
441
442		return (contrastRatio >= 4.5) ? 'AA' : '';
443	},
444
445	dark: function () {
446		// YIQ equation from http://24ways.org/2010/calculating-color-contrast
447		var rgb = this.values.rgb;
448		var yiq = (rgb[0] * 299 + rgb[1] * 587 + rgb[2] * 114) / 1000;
449		return yiq < 128;
450	},
451
452	light: function () {
453		return !this.dark();
454	},
455
456	negate: function () {
457		var rgb = [];
458		for (var i = 0; i < 3; i++) {
459			rgb[i] = 255 - this.values.rgb[i];
460		}
461		this.setValues('rgb', rgb);
462		return this;
463	},
464
465	lighten: function (ratio) {
466		var hsl = this.values.hsl;
467		hsl[2] += hsl[2] * ratio;
468		this.setValues('hsl', hsl);
469		return this;
470	},
471
472	darken: function (ratio) {
473		var hsl = this.values.hsl;
474		hsl[2] -= hsl[2] * ratio;
475		this.setValues('hsl', hsl);
476		return this;
477	},
478
479	saturate: function (ratio) {
480		var hsl = this.values.hsl;
481		hsl[1] += hsl[1] * ratio;
482		this.setValues('hsl', hsl);
483		return this;
484	},
485
486	desaturate: function (ratio) {
487		var hsl = this.values.hsl;
488		hsl[1] -= hsl[1] * ratio;
489		this.setValues('hsl', hsl);
490		return this;
491	},
492
493	whiten: function (ratio) {
494		var hwb = this.values.hwb;
495		hwb[1] += hwb[1] * ratio;
496		this.setValues('hwb', hwb);
497		return this;
498	},
499
500	blacken: function (ratio) {
501		var hwb = this.values.hwb;
502		hwb[2] += hwb[2] * ratio;
503		this.setValues('hwb', hwb);
504		return this;
505	},
506
507	greyscale: function () {
508		var rgb = this.values.rgb;
509		// http://en.wikipedia.org/wiki/Grayscale#Converting_color_to_grayscale
510		var val = rgb[0] * 0.3 + rgb[1] * 0.59 + rgb[2] * 0.11;
511		this.setValues('rgb', [val, val, val]);
512		return this;
513	},
514
515	clearer: function (ratio) {
516		var alpha = this.values.alpha;
517		this.setValues('alpha', alpha - (alpha * ratio));
518		return this;
519	},
520
521	opaquer: function (ratio) {
522		var alpha = this.values.alpha;
523		this.setValues('alpha', alpha + (alpha * ratio));
524		return this;
525	},
526
527	rotate: function (degrees) {
528		var hsl = this.values.hsl;
529		var hue = (hsl[0] + degrees) % 360;
530		hsl[0] = hue < 0 ? 360 + hue : hue;
531		this.setValues('hsl', hsl);
532		return this;
533	},
534
535	/**
536	 * Ported from sass implementation in C
537	 * https://github.com/sass/libsass/blob/0e6b4a2850092356aa3ece07c6b249f0221caced/functions.cpp#L209
538	 */
539	mix: function (mixinColor, weight) {
540		var color1 = this;
541		var color2 = mixinColor;
542		var p = weight === undefined ? 0.5 : weight;
543
544		var w = 2 * p - 1;
545		var a = color1.alpha() - color2.alpha();
546
547		var w1 = (((w * a === -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
548		var w2 = 1 - w1;
549
550		return this
551			.rgb(
552				w1 * color1.red() + w2 * color2.red(),
553				w1 * color1.green() + w2 * color2.green(),
554				w1 * color1.blue() + w2 * color2.blue()
555			)
556			.alpha(color1.alpha() * p + color2.alpha() * (1 - p));
557	},
558
559	toJSON: function () {
560		return this.rgb();
561	},
562
563	clone: function () {
564		// NOTE(SB): using node-clone creates a dependency to Buffer when using browserify,
565		// making the final build way to big to embed in Chart.js. So let's do it manually,
566		// assuming that values to clone are 1 dimension arrays containing only numbers,
567		// except 'alpha' which is a number.
568		var result = new Color();
569		var source = this.values;
570		var target = result.values;
571		var value, type;
572
573		for (var prop in source) {
574			if (source.hasOwnProperty(prop)) {
575				value = source[prop];
576				type = ({}).toString.call(value);
577				if (type === '[object Array]') {
578					target[prop] = value.slice(0);
579				} else if (type === '[object Number]') {
580					target[prop] = value;
581				} else {
582					console.error('unexpected color value:', value);
583				}
584			}
585		}
586
587		return result;
588	}
589};
590
591Color.prototype.spaces = {
592	rgb: ['red', 'green', 'blue'],
593	hsl: ['hue', 'saturation', 'lightness'],
594	hsv: ['hue', 'saturation', 'value'],
595	hwb: ['hue', 'whiteness', 'blackness'],
596	cmyk: ['cyan', 'magenta', 'yellow', 'black']
597};
598
599Color.prototype.maxes = {
600	rgb: [255, 255, 255],
601	hsl: [360, 100, 100],
602	hsv: [360, 100, 100],
603	hwb: [360, 100, 100],
604	cmyk: [100, 100, 100, 100]
605};
606
607Color.prototype.getValues = function (space) {
608	var values = this.values;
609	var vals = {};
610
611	for (var i = 0; i < space.length; i++) {
612		vals[space.charAt(i)] = values[space][i];
613	}
614
615	if (values.alpha !== 1) {
616		vals.a = values.alpha;
617	}
618
619	// {r: 255, g: 255, b: 255, a: 0.4}
620	return vals;
621};
622
623Color.prototype.setValues = function (space, vals) {
624	var values = this.values;
625	var spaces = this.spaces;
626	var maxes = this.maxes;
627	var alpha = 1;
628	var i;
629
630	this.valid = true;
631
632	if (space === 'alpha') {
633		alpha = vals;
634	} else if (vals.length) {
635		// [10, 10, 10]
636		values[space] = vals.slice(0, space.length);
637		alpha = vals[space.length];
638	} else if (vals[space.charAt(0)] !== undefined) {
639		// {r: 10, g: 10, b: 10}
640		for (i = 0; i < space.length; i++) {
641			values[space][i] = vals[space.charAt(i)];
642		}
643
644		alpha = vals.a;
645	} else if (vals[spaces[space][0]] !== undefined) {
646		// {red: 10, green: 10, blue: 10}
647		var chans = spaces[space];
648
649		for (i = 0; i < space.length; i++) {
650			values[space][i] = vals[chans[i]];
651		}
652
653		alpha = vals.alpha;
654	}
655
656	values.alpha = Math.max(0, Math.min(1, (alpha === undefined ? values.alpha : alpha)));
657
658	if (space === 'alpha') {
659		return false;
660	}
661
662	var capped;
663
664	// cap values of the space prior converting all values
665	for (i = 0; i < space.length; i++) {
666		capped = Math.max(0, Math.min(maxes[space][i], values[space][i]));
667		values[space][i] = Math.round(capped);
668	}
669
670	// convert to all the other color spaces
671	for (var sname in spaces) {
672		if (sname !== space) {
673			values[sname] = convert[space][sname](values[space]);
674		}
675	}
676
677	return true;
678};
679
680Color.prototype.setSpace = function (space, args) {
681	var vals = args[0];
682
683	if (vals === undefined) {
684		// color.rgb()
685		return this.getValues(space);
686	}
687
688	// color.rgb(10, 10, 10)
689	if (typeof vals === 'number') {
690		vals = Array.prototype.slice.call(args);
691	}
692
693	this.setValues(space, vals);
694	return this;
695};
696
697Color.prototype.setChannel = function (space, index, val) {
698	var svalues = this.values[space];
699	if (val === undefined) {
700		// color.red()
701		return svalues[index];
702	} else if (val === svalues[index]) {
703		// color.red(color.red())
704		return this;
705	}
706
707	// color.red(100)
708	svalues[index] = val;
709	this.setValues(space, svalues);
710
711	return this;
712};
713
714if (typeof window !== 'undefined') {
715	window.Color = Color;
716}
717
718module.exports = Color;
719
720},{"1":1,"4":4}],3:[function(require,module,exports){
721/* MIT license */
722
723module.exports = {
724  rgb2hsl: rgb2hsl,
725  rgb2hsv: rgb2hsv,
726  rgb2hwb: rgb2hwb,
727  rgb2cmyk: rgb2cmyk,
728  rgb2keyword: rgb2keyword,
729  rgb2xyz: rgb2xyz,
730  rgb2lab: rgb2lab,
731  rgb2lch: rgb2lch,
732
733  hsl2rgb: hsl2rgb,
734  hsl2hsv: hsl2hsv,
735  hsl2hwb: hsl2hwb,
736  hsl2cmyk: hsl2cmyk,
737  hsl2keyword: hsl2keyword,
738
739  hsv2rgb: hsv2rgb,
740  hsv2hsl: hsv2hsl,
741  hsv2hwb: hsv2hwb,
742  hsv2cmyk: hsv2cmyk,
743  hsv2keyword: hsv2keyword,
744
745  hwb2rgb: hwb2rgb,
746  hwb2hsl: hwb2hsl,
747  hwb2hsv: hwb2hsv,
748  hwb2cmyk: hwb2cmyk,
749  hwb2keyword: hwb2keyword,
750
751  cmyk2rgb: cmyk2rgb,
752  cmyk2hsl: cmyk2hsl,
753  cmyk2hsv: cmyk2hsv,
754  cmyk2hwb: cmyk2hwb,
755  cmyk2keyword: cmyk2keyword,
756
757  keyword2rgb: keyword2rgb,
758  keyword2hsl: keyword2hsl,
759  keyword2hsv: keyword2hsv,
760  keyword2hwb: keyword2hwb,
761  keyword2cmyk: keyword2cmyk,
762  keyword2lab: keyword2lab,
763  keyword2xyz: keyword2xyz,
764
765  xyz2rgb: xyz2rgb,
766  xyz2lab: xyz2lab,
767  xyz2lch: xyz2lch,
768
769  lab2xyz: lab2xyz,
770  lab2rgb: lab2rgb,
771  lab2lch: lab2lch,
772
773  lch2lab: lch2lab,
774  lch2xyz: lch2xyz,
775  lch2rgb: lch2rgb
776}
777
778
779function rgb2hsl(rgb) {
780  var r = rgb[0]/255,
781      g = rgb[1]/255,
782      b = rgb[2]/255,
783      min = Math.min(r, g, b),
784      max = Math.max(r, g, b),
785      delta = max - min,
786      h, s, l;
787
788  if (max == min)
789    h = 0;
790  else if (r == max)
791    h = (g - b) / delta;
792  else if (g == max)
793    h = 2 + (b - r) / delta;
794  else if (b == max)
795    h = 4 + (r - g)/ delta;
796
797  h = Math.min(h * 60, 360);
798
799  if (h < 0)
800    h += 360;
801
802  l = (min + max) / 2;
803
804  if (max == min)
805    s = 0;
806  else if (l <= 0.5)
807    s = delta / (max + min);
808  else
809    s = delta / (2 - max - min);
810
811  return [h, s * 100, l * 100];
812}
813
814function rgb2hsv(rgb) {
815  var r = rgb[0],
816      g = rgb[1],
817      b = rgb[2],
818      min = Math.min(r, g, b),
819      max = Math.max(r, g, b),
820      delta = max - min,
821      h, s, v;
822
823  if (max == 0)
824    s = 0;
825  else
826    s = (delta/max * 1000)/10;
827
828  if (max == min)
829    h = 0;
830  else if (r == max)
831    h = (g - b) / delta;
832  else if (g == max)
833    h = 2 + (b - r) / delta;
834  else if (b == max)
835    h = 4 + (r - g) / delta;
836
837  h = Math.min(h * 60, 360);
838
839  if (h < 0)
840    h += 360;
841
842  v = ((max / 255) * 1000) / 10;
843
844  return [h, s, v];
845}
846
847function rgb2hwb(rgb) {
848  var r = rgb[0],
849      g = rgb[1],
850      b = rgb[2],
851      h = rgb2hsl(rgb)[0],
852      w = 1/255 * Math.min(r, Math.min(g, b)),
853      b = 1 - 1/255 * Math.max(r, Math.max(g, b));
854
855  return [h, w * 100, b * 100];
856}
857
858function rgb2cmyk(rgb) {
859  var r = rgb[0] / 255,
860      g = rgb[1] / 255,
861      b = rgb[2] / 255,
862      c, m, y, k;
863
864  k = Math.min(1 - r, 1 - g, 1 - b);
865  c = (1 - r - k) / (1 - k) || 0;
866  m = (1 - g - k) / (1 - k) || 0;
867  y = (1 - b - k) / (1 - k) || 0;
868  return [c * 100, m * 100, y * 100, k * 100];
869}
870
871function rgb2keyword(rgb) {
872  return reverseKeywords[JSON.stringify(rgb)];
873}
874
875function rgb2xyz(rgb) {
876  var r = rgb[0] / 255,
877      g = rgb[1] / 255,
878      b = rgb[2] / 255;
879
880  // assume sRGB
881  r = r > 0.04045 ? Math.pow(((r + 0.055) / 1.055), 2.4) : (r / 12.92);
882  g = g > 0.04045 ? Math.pow(((g + 0.055) / 1.055), 2.4) : (g / 12.92);
883  b = b > 0.04045 ? Math.pow(((b + 0.055) / 1.055), 2.4) : (b / 12.92);
884
885  var x = (r * 0.4124) + (g * 0.3576) + (b * 0.1805);
886  var y = (r * 0.2126) + (g * 0.7152) + (b * 0.0722);
887  var z = (r * 0.0193) + (g * 0.1192) + (b * 0.9505);
888
889  return [x * 100, y *100, z * 100];
890}
891
892function rgb2lab(rgb) {
893  var xyz = rgb2xyz(rgb),
894        x = xyz[0],
895        y = xyz[1],
896        z = xyz[2],
897        l, a, b;
898
899  x /= 95.047;
900  y /= 100;
901  z /= 108.883;
902
903  x = x > 0.008856 ? Math.pow(x, 1/3) : (7.787 * x) + (16 / 116);
904  y = y > 0.008856 ? Math.pow(y, 1/3) : (7.787 * y) + (16 / 116);
905  z = z > 0.008856 ? Math.pow(z, 1/3) : (7.787 * z) + (16 / 116);
906
907  l = (116 * y) - 16;
908  a = 500 * (x - y);
909  b = 200 * (y - z);
910
911  return [l, a, b];
912}
913
914function rgb2lch(args) {
915  return lab2lch(rgb2lab(args));
916}
917
918function hsl2rgb(hsl) {
919  var h = hsl[0] / 360,
920      s = hsl[1] / 100,
921      l = hsl[2] / 100,
922      t1, t2, t3, rgb, val;
923
924  if (s == 0) {
925    val = l * 255;
926    return [val, val, val];
927  }
928
929  if (l < 0.5)
930    t2 = l * (1 + s);
931  else
932    t2 = l + s - l * s;
933  t1 = 2 * l - t2;
934
935  rgb = [0, 0, 0];
936  for (var i = 0; i < 3; i++) {
937    t3 = h + 1 / 3 * - (i - 1);
938    t3 < 0 && t3++;
939    t3 > 1 && t3--;
940
941    if (6 * t3 < 1)
942      val = t1 + (t2 - t1) * 6 * t3;
943    else if (2 * t3 < 1)
944      val = t2;
945    else if (3 * t3 < 2)
946      val = t1 + (t2 - t1) * (2 / 3 - t3) * 6;
947    else
948      val = t1;
949
950    rgb[i] = val * 255;
951  }
952
953  return rgb;
954}
955
956function hsl2hsv(hsl) {
957  var h = hsl[0],
958      s = hsl[1] / 100,
959      l = hsl[2] / 100,
960      sv, v;
961
962  if(l === 0) {
963      // no need to do calc on black
964      // also avoids divide by 0 error
965      return [0, 0, 0];
966  }
967
968  l *= 2;
969  s *= (l <= 1) ? l : 2 - l;
970  v = (l + s) / 2;
971  sv = (2 * s) / (l + s);
972  return [h, sv * 100, v * 100];
973}
974
975function hsl2hwb(args) {
976  return rgb2hwb(hsl2rgb(args));
977}
978
979function hsl2cmyk(args) {
980  return rgb2cmyk(hsl2rgb(args));
981}
982
983function hsl2keyword(args) {
984  return rgb2keyword(hsl2rgb(args));
985}
986
987
988function hsv2rgb(hsv) {
989  var h = hsv[0] / 60,
990      s = hsv[1] / 100,
991      v = hsv[2] / 100,
992      hi = Math.floor(h) % 6;
993
994  var f = h - Math.floor(h),
995      p = 255 * v * (1 - s),
996      q = 255 * v * (1 - (s * f)),
997      t = 255 * v * (1 - (s * (1 - f))),
998      v = 255 * v;
999
1000  switch(hi) {
1001    case 0:
1002      return [v, t, p];
1003    case 1:
1004      return [q, v, p];
1005    case 2:
1006      return [p, v, t];
1007    case 3:
1008      return [p, q, v];
1009    case 4:
1010      return [t, p, v];
1011    case 5:
1012      return [v, p, q];
1013  }
1014}
1015
1016function hsv2hsl(hsv) {
1017  var h = hsv[0],
1018      s = hsv[1] / 100,
1019      v = hsv[2] / 100,
1020      sl, l;
1021
1022  l = (2 - s) * v;
1023  sl = s * v;
1024  sl /= (l <= 1) ? l : 2 - l;
1025  sl = sl || 0;
1026  l /= 2;
1027  return [h, sl * 100, l * 100];
1028}
1029
1030function hsv2hwb(args) {
1031  return rgb2hwb(hsv2rgb(args))
1032}
1033
1034function hsv2cmyk(args) {
1035  return rgb2cmyk(hsv2rgb(args));
1036}
1037
1038function hsv2keyword(args) {
1039  return rgb2keyword(hsv2rgb(args));
1040}
1041
1042// http://dev.w3.org/csswg/css-color/#hwb-to-rgb
1043function hwb2rgb(hwb) {
1044  var h = hwb[0] / 360,
1045      wh = hwb[1] / 100,
1046      bl = hwb[2] / 100,
1047      ratio = wh + bl,
1048      i, v, f, n;
1049
1050  // wh + bl cant be > 1
1051  if (ratio > 1) {
1052    wh /= ratio;
1053    bl /= ratio;
1054  }
1055
1056  i = Math.floor(6 * h);
1057  v = 1 - bl;
1058  f = 6 * h - i;
1059  if ((i & 0x01) != 0) {
1060    f = 1 - f;
1061  }
1062  n = wh + f * (v - wh);  // linear interpolation
1063
1064  switch (i) {
1065    default:
1066    case 6:
1067    case 0: r = v; g = n; b = wh; break;
1068    case 1: r = n; g = v; b = wh; break;
1069    case 2: r = wh; g = v; b = n; break;
1070    case 3: r = wh; g = n; b = v; break;
1071    case 4: r = n; g = wh; b = v; break;
1072    case 5: r = v; g = wh; b = n; break;
1073  }
1074
1075  return [r * 255, g * 255, b * 255];
1076}
1077
1078function hwb2hsl(args) {
1079  return rgb2hsl(hwb2rgb(args));
1080}
1081
1082function hwb2hsv(args) {
1083  return rgb2hsv(hwb2rgb(args));
1084}
1085
1086function hwb2cmyk(args) {
1087  return rgb2cmyk(hwb2rgb(args));
1088}
1089
1090function hwb2keyword(args) {
1091  return rgb2keyword(hwb2rgb(args));
1092}
1093
1094function cmyk2rgb(cmyk) {
1095  var c = cmyk[0] / 100,
1096      m = cmyk[1] / 100,
1097      y = cmyk[2] / 100,
1098      k = cmyk[3] / 100,
1099      r, g, b;
1100
1101  r = 1 - Math.min(1, c * (1 - k) + k);
1102  g = 1 - Math.min(1, m * (1 - k) + k);
1103  b = 1 - Math.min(1, y * (1 - k) + k);
1104  return [r * 255, g * 255, b * 255];
1105}
1106
1107function cmyk2hsl(args) {
1108  return rgb2hsl(cmyk2rgb(args));
1109}
1110
1111function cmyk2hsv(args) {
1112  return rgb2hsv(cmyk2rgb(args));
1113}
1114
1115function cmyk2hwb(args) {
1116  return rgb2hwb(cmyk2rgb(args));
1117}
1118
1119function cmyk2keyword(args) {
1120  return rgb2keyword(cmyk2rgb(args));
1121}
1122
1123
1124function xyz2rgb(xyz) {
1125  var x = xyz[0] / 100,
1126      y = xyz[1] / 100,
1127      z = xyz[2] / 100,
1128      r, g, b;
1129
1130  r = (x * 3.2406) + (y * -1.5372) + (z * -0.4986);
1131  g = (x * -0.9689) + (y * 1.8758) + (z * 0.0415);
1132  b = (x * 0.0557) + (y * -0.2040) + (z * 1.0570);
1133
1134  // assume sRGB
1135  r = r > 0.0031308 ? ((1.055 * Math.pow(r, 1.0 / 2.4)) - 0.055)
1136    : r = (r * 12.92);
1137
1138  g = g > 0.0031308 ? ((1.055 * Math.pow(g, 1.0 / 2.4)) - 0.055)
1139    : g = (g * 12.92);
1140
1141  b = b > 0.0031308 ? ((1.055 * Math.pow(b, 1.0 / 2.4)) - 0.055)
1142    : b = (b * 12.92);
1143
1144  r = Math.min(Math.max(0, r), 1);
1145  g = Math.min(Math.max(0, g), 1);
1146  b = Math.min(Math.max(0, b), 1);
1147
1148  return [r * 255, g * 255, b * 255];
1149}
1150
1151function xyz2lab(xyz) {
1152  var x = xyz[0],
1153      y = xyz[1],
1154      z = xyz[2],
1155      l, a, b;
1156
1157  x /= 95.047;
1158  y /= 100;
1159  z /= 108.883;
1160
1161  x = x > 0.008856 ? Math.pow(x, 1/3) : (7.787 * x) + (16 / 116);
1162  y = y > 0.008856 ? Math.pow(y, 1/3) : (7.787 * y) + (16 / 116);
1163  z = z > 0.008856 ? Math.pow(z, 1/3) : (7.787 * z) + (16 / 116);
1164
1165  l = (116 * y) - 16;
1166  a = 500 * (x - y);
1167  b = 200 * (y - z);
1168
1169  return [l, a, b];
1170}
1171
1172function xyz2lch(args) {
1173  return lab2lch(xyz2lab(args));
1174}
1175
1176function lab2xyz(lab) {
1177  var l = lab[0],
1178      a = lab[1],
1179      b = lab[2],
1180      x, y, z, y2;
1181
1182  if (l <= 8) {
1183    y = (l * 100) / 903.3;
1184    y2 = (7.787 * (y / 100)) + (16 / 116);
1185  } else {
1186    y = 100 * Math.pow((l + 16) / 116, 3);
1187    y2 = Math.pow(y / 100, 1/3);
1188  }
1189
1190  x = x / 95.047 <= 0.008856 ? x = (95.047 * ((a / 500) + y2 - (16 / 116))) / 7.787 : 95.047 * Math.pow((a / 500) + y2, 3);
1191
1192  z = z / 108.883 <= 0.008859 ? z = (108.883 * (y2 - (b / 200) - (16 / 116))) / 7.787 : 108.883 * Math.pow(y2 - (b / 200), 3);
1193
1194  return [x, y, z];
1195}
1196
1197function lab2lch(lab) {
1198  var l = lab[0],
1199      a = lab[1],
1200      b = lab[2],
1201      hr, h, c;
1202
1203  hr = Math.atan2(b, a);
1204  h = hr * 360 / 2 / Math.PI;
1205  if (h < 0) {
1206    h += 360;
1207  }
1208  c = Math.sqrt(a * a + b * b);
1209  return [l, c, h];
1210}
1211
1212function lab2rgb(args) {
1213  return xyz2rgb(lab2xyz(args));
1214}
1215
1216function lch2lab(lch) {
1217  var l = lch[0],
1218      c = lch[1],
1219      h = lch[2],
1220      a, b, hr;
1221
1222  hr = h / 360 * 2 * Math.PI;
1223  a = c * Math.cos(hr);
1224  b = c * Math.sin(hr);
1225  return [l, a, b];
1226}
1227
1228function lch2xyz(args) {
1229  return lab2xyz(lch2lab(args));
1230}
1231
1232function lch2rgb(args) {
1233  return lab2rgb(lch2lab(args));
1234}
1235
1236function keyword2rgb(keyword) {
1237  return cssKeywords[keyword];
1238}
1239
1240function keyword2hsl(args) {
1241  return rgb2hsl(keyword2rgb(args));
1242}
1243
1244function keyword2hsv(args) {
1245  return rgb2hsv(keyword2rgb(args));
1246}
1247
1248function keyword2hwb(args) {
1249  return rgb2hwb(keyword2rgb(args));
1250}
1251
1252function keyword2cmyk(args) {
1253  return rgb2cmyk(keyword2rgb(args));
1254}
1255
1256function keyword2lab(args) {
1257  return rgb2lab(keyword2rgb(args));
1258}
1259
1260function keyword2xyz(args) {
1261  return rgb2xyz(keyword2rgb(args));
1262}
1263
1264var cssKeywords = {
1265  aliceblue:  [240,248,255],
1266  antiquewhite: [250,235,215],
1267  aqua: [0,255,255],
1268  aquamarine: [127,255,212],
1269  azure:  [240,255,255],
1270  beige:  [245,245,220],
1271  bisque: [255,228,196],
1272  black:  [0,0,0],
1273  blanchedalmond: [255,235,205],
1274  blue: [0,0,255],
1275  blueviolet: [138,43,226],
1276  brown:  [165,42,42],
1277  burlywood:  [222,184,135],
1278  cadetblue:  [95,158,160],
1279  chartreuse: [127,255,0],
1280  chocolate:  [210,105,30],
1281  coral:  [255,127,80],
1282  cornflowerblue: [100,149,237],
1283  cornsilk: [255,248,220],
1284  crimson:  [220,20,60],
1285  cyan: [0,255,255],
1286  darkblue: [0,0,139],
1287  darkcyan: [0,139,139],
1288  darkgoldenrod:  [184,134,11],
1289  darkgray: [169,169,169],
1290  darkgreen:  [0,100,0],
1291  darkgrey: [169,169,169],
1292  darkkhaki:  [189,183,107],
1293  darkmagenta:  [139,0,139],
1294  darkolivegreen: [85,107,47],
1295  darkorange: [255,140,0],
1296  darkorchid: [153,50,204],
1297  darkred:  [139,0,0],
1298  darksalmon: [233,150,122],
1299  darkseagreen: [143,188,143],
1300  darkslateblue:  [72,61,139],
1301  darkslategray:  [47,79,79],
1302  darkslategrey:  [47,79,79],
1303  darkturquoise:  [0,206,209],
1304  darkviolet: [148,0,211],
1305  deeppink: [255,20,147],
1306  deepskyblue:  [0,191,255],
1307  dimgray:  [105,105,105],
1308  dimgrey:  [105,105,105],
1309  dodgerblue: [30,144,255],
1310  firebrick:  [178,34,34],
1311  floralwhite:  [255,250,240],
1312  forestgreen:  [34,139,34],
1313  fuchsia:  [255,0,255],
1314  gainsboro:  [220,220,220],
1315  ghostwhite: [248,248,255],
1316  gold: [255,215,0],
1317  goldenrod:  [218,165,32],
1318  gray: [128,128,128],
1319  green:  [0,128,0],
1320  greenyellow:  [173,255,47],
1321  grey: [128,128,128],
1322  honeydew: [240,255,240],
1323  hotpink:  [255,105,180],
1324  indianred:  [205,92,92],
1325  indigo: [75,0,130],
1326  ivory:  [255,255,240],
1327  khaki:  [240,230,140],
1328  lavender: [230,230,250],
1329  lavenderblush:  [255,240,245],
1330  lawngreen:  [124,252,0],
1331  lemonchiffon: [255,250,205],
1332  lightblue:  [173,216,230],
1333  lightcoral: [240,128,128],
1334  lightcyan:  [224,255,255],
1335  lightgoldenrodyellow: [250,250,210],
1336  lightgray:  [211,211,211],
1337  lightgreen: [144,238,144],
1338  lightgrey:  [211,211,211],
1339  lightpink:  [255,182,193],
1340  lightsalmon:  [255,160,122],
1341  lightseagreen:  [32,178,170],
1342  lightskyblue: [135,206,250],
1343  lightslategray: [119,136,153],
1344  lightslategrey: [119,136,153],
1345  lightsteelblue: [176,196,222],
1346  lightyellow:  [255,255,224],
1347  lime: [0,255,0],
1348  limegreen:  [50,205,50],
1349  linen:  [250,240,230],
1350  magenta:  [255,0,255],
1351  maroon: [128,0,0],
1352  mediumaquamarine: [102,205,170],
1353  mediumblue: [0,0,205],
1354  mediumorchid: [186,85,211],
1355  mediumpurple: [147,112,219],
1356  mediumseagreen: [60,179,113],
1357  mediumslateblue:  [123,104,238],
1358  mediumspringgreen:  [0,250,154],
1359  mediumturquoise:  [72,209,204],
1360  mediumvioletred:  [199,21,133],
1361  midnightblue: [25,25,112],
1362  mintcream:  [245,255,250],
1363  mistyrose:  [255,228,225],
1364  moccasin: [255,228,181],
1365  navajowhite:  [255,222,173],
1366  navy: [0,0,128],
1367  oldlace:  [253,245,230],
1368  olive:  [128,128,0],
1369  olivedrab:  [107,142,35],
1370  orange: [255,165,0],
1371  orangered:  [255,69,0],
1372  orchid: [218,112,214],
1373  palegoldenrod:  [238,232,170],
1374  palegreen:  [152,251,152],
1375  paleturquoise:  [175,238,238],
1376  palevioletred:  [219,112,147],
1377  papayawhip: [255,239,213],
1378  peachpuff:  [255,218,185],
1379  peru: [205,133,63],
1380  pink: [255,192,203],
1381  plum: [221,160,221],
1382  powderblue: [176,224,230],
1383  purple: [128,0,128],
1384  rebeccapurple: [102, 51, 153],
1385  red:  [255,0,0],
1386  rosybrown:  [188,143,143],
1387  royalblue:  [65,105,225],
1388  saddlebrown:  [139,69,19],
1389  salmon: [250,128,114],
1390  sandybrown: [244,164,96],
1391  seagreen: [46,139,87],
1392  seashell: [255,245,238],
1393  sienna: [160,82,45],
1394  silver: [192,192,192],
1395  skyblue:  [135,206,235],
1396  slateblue:  [106,90,205],
1397  slategray:  [112,128,144],
1398  slategrey:  [112,128,144],
1399  snow: [255,250,250],
1400  springgreen:  [0,255,127],
1401  steelblue:  [70,130,180],
1402  tan:  [210,180,140],
1403  teal: [0,128,128],
1404  thistle:  [216,191,216],
1405  tomato: [255,99,71],
1406  turquoise:  [64,224,208],
1407  violet: [238,130,238],
1408  wheat:  [245,222,179],
1409  white:  [255,255,255],
1410  whitesmoke: [245,245,245],
1411  yellow: [255,255,0],
1412  yellowgreen:  [154,205,50]
1413};
1414
1415var reverseKeywords = {};
1416for (var key in cssKeywords) {
1417  reverseKeywords[JSON.stringify(cssKeywords[key])] = key;
1418}
1419
1420},{}],4:[function(require,module,exports){
1421var conversions = require(3);
1422
1423var convert = function() {
1424   return new Converter();
1425}
1426
1427for (var func in conversions) {
1428  // export Raw versions
1429  convert[func + "Raw"] =  (function(func) {
1430    // accept array or plain args
1431    return function(arg) {
1432      if (typeof arg == "number")
1433        arg = Array.prototype.slice.call(arguments);
1434      return conversions[func](arg);
1435    }
1436  })(func);
1437
1438  var pair = /(\w+)2(\w+)/.exec(func),
1439      from = pair[1],
1440      to = pair[2];
1441
1442  // export rgb2hsl and ["rgb"]["hsl"]
1443  convert[from] = convert[from] || {};
1444
1445  convert[from][to] = convert[func] = (function(func) { 
1446    return function(arg) {
1447      if (typeof arg == "number")
1448        arg = Array.prototype.slice.call(arguments);
1449      
1450      var val = conversions[func](arg);
1451      if (typeof val == "string" || val === undefined)
1452        return val; // keyword
1453
1454      for (var i = 0; i < val.length; i++)
1455        val[i] = Math.round(val[i]);
1456      return val;
1457    }
1458  })(func);
1459}
1460
1461
1462/* Converter does lazy conversion and caching */
1463var Converter = function() {
1464   this.convs = {};
1465};
1466
1467/* Either get the values for a space or
1468  set the values for a space, depending on args */
1469Converter.prototype.routeSpace = function(space, args) {
1470   var values = args[0];
1471   if (values === undefined) {
1472      // color.rgb()
1473      return this.getValues(space);
1474   }
1475   // color.rgb(10, 10, 10)
1476   if (typeof values == "number") {
1477      values = Array.prototype.slice.call(args);        
1478   }
1479
1480   return this.setValues(space, values);
1481};
1482  
1483/* Set the values for a space, invalidating cache */
1484Converter.prototype.setValues = function(space, values) {
1485   this.space = space;
1486   this.convs = {};
1487   this.convs[space] = values;
1488   return this;
1489};
1490
1491/* Get the values for a space. If there's already
1492  a conversion for the space, fetch it, otherwise
1493  compute it */
1494Converter.prototype.getValues = function(space) {
1495   var vals = this.convs[space];
1496   if (!vals) {
1497      var fspace = this.space,
1498          from = this.convs[fspace];
1499      vals = convert[fspace][space](from);
1500
1501      this.convs[space] = vals;
1502   }
1503  return vals;
1504};
1505
1506["rgb", "hsl", "hsv", "cmyk", "keyword"].forEach(function(space) {
1507   Converter.prototype[space] = function(vals) {
1508      return this.routeSpace(space, arguments);
1509   }
1510});
1511
1512module.exports = convert;
1513},{"3":3}],5:[function(require,module,exports){
1514'use strict'
1515
1516module.exports = {
1517	"aliceblue": [240, 248, 255],
1518	"antiquewhite": [250, 235, 215],
1519	"aqua": [0, 255, 255],
1520	"aquamarine": [127, 255, 212],
1521	"azure": [240, 255, 255],
1522	"beige": [245, 245, 220],
1523	"bisque": [255, 228, 196],
1524	"black": [0, 0, 0],
1525	"blanchedalmond": [255, 235, 205],
1526	"blue": [0, 0, 255],
1527	"blueviolet": [138, 43, 226],
1528	"brown": [165, 42, 42],
1529	"burlywood": [222, 184, 135],
1530	"cadetblue": [95, 158, 160],
1531	"chartreuse": [127, 255, 0],
1532	"chocolate": [210, 105, 30],
1533	"coral": [255, 127, 80],
1534	"cornflowerblue": [100, 149, 237],
1535	"cornsilk": [255, 248, 220],
1536	"crimson": [220, 20, 60],
1537	"cyan": [0, 255, 255],
1538	"darkblue": [0, 0, 139],
1539	"darkcyan": [0, 139, 139],
1540	"darkgoldenrod": [184, 134, 11],
1541	"darkgray": [169, 169, 169],
1542	"darkgreen": [0, 100, 0],
1543	"darkgrey": [169, 169, 169],
1544	"darkkhaki": [189, 183, 107],
1545	"darkmagenta": [139, 0, 139],
1546	"darkolivegreen": [85, 107, 47],
1547	"darkorange": [255, 140, 0],
1548	"darkorchid": [153, 50, 204],
1549	"darkred": [139, 0, 0],
1550	"darksalmon": [233, 150, 122],
1551	"darkseagreen": [143, 188, 143],
1552	"darkslateblue": [72, 61, 139],
1553	"darkslategray": [47, 79, 79],
1554	"darkslategrey": [47, 79, 79],
1555	"darkturquoise": [0, 206, 209],
1556	"darkviolet": [148, 0, 211],
1557	"deeppink": [255, 20, 147],
1558	"deepskyblue": [0, 191, 255],
1559	"dimgray": [105, 105, 105],
1560	"dimgrey": [105, 105, 105],
1561	"dodgerblue": [30, 144, 255],
1562	"firebrick": [178, 34, 34],
1563	"floralwhite": [255, 250, 240],
1564	"forestgreen": [34, 139, 34],
1565	"fuchsia": [255, 0, 255],
1566	"gainsboro": [220, 220, 220],
1567	"ghostwhite": [248, 248, 255],
1568	"gold": [255, 215, 0],
1569	"goldenrod": [218, 165, 32],
1570	"gray": [128, 128, 128],
1571	"green": [0, 128, 0],
1572	"greenyellow": [173, 255, 47],
1573	"grey": [128, 128, 128],
1574	"honeydew": [240, 255, 240],
1575	"hotpink": [255, 105, 180],
1576	"indianred": [205, 92, 92],
1577	"indigo": [75, 0, 130],
1578	"ivory": [255, 255, 240],
1579	"khaki": [240, 230, 140],
1580	"lavender": [230, 230, 250],
1581	"lavenderblush": [255, 240, 245],
1582	"lawngreen": [124, 252, 0],
1583	"lemonchiffon": [255, 250, 205],
1584	"lightblue": [173, 216, 230],
1585	"lightcoral": [240, 128, 128],
1586	"lightcyan": [224, 255, 255],
1587	"lightgoldenrodyellow": [250, 250, 210],
1588	"lightgray": [211, 211, 211],
1589	"lightgreen": [144, 238, 144],
1590	"lightgrey": [211, 211, 211],
1591	"lightpink": [255, 182, 193],
1592	"lightsalmon": [255, 160, 122],
1593	"lightseagreen": [32, 178, 170],
1594	"lightskyblue": [135, 206, 250],
1595	"lightslategray": [119, 136, 153],
1596	"lightslategrey": [119, 136, 153],
1597	"lightsteelblue": [176, 196, 222],
1598	"lightyellow": [255, 255, 224],
1599	"lime": [0, 255, 0],
1600	"limegreen": [50, 205, 50],
1601	"linen": [250, 240, 230],
1602	"magenta": [255, 0, 255],
1603	"maroon": [128, 0, 0],
1604	"mediumaquamarine": [102, 205, 170],
1605	"mediumblue": [0, 0, 205],
1606	"mediumorchid": [186, 85, 211],
1607	"mediumpurple": [147, 112, 219],
1608	"mediumseagreen": [60, 179, 113],
1609	"mediumslateblue": [123, 104, 238],
1610	"mediumspringgreen": [0, 250, 154],
1611	"mediumturquoise": [72, 209, 204],
1612	"mediumvioletred": [199, 21, 133],
1613	"midnightblue": [25, 25, 112],
1614	"mintcream": [245, 255, 250],
1615	"mistyrose": [255, 228, 225],
1616	"moccasin": [255, 228, 181],
1617	"navajowhite": [255, 222, 173],
1618	"navy": [0, 0, 128],
1619	"oldlace": [253, 245, 230],
1620	"olive": [128, 128, 0],
1621	"olivedrab": [107, 142, 35],
1622	"orange": [255, 165, 0],
1623	"orangered": [255, 69, 0],
1624	"orchid": [218, 112, 214],
1625	"palegoldenrod": [238, 232, 170],
1626	"palegreen": [152, 251, 152],
1627	"paleturquoise": [175, 238, 238],
1628	"palevioletred": [219, 112, 147],
1629	"papayawhip": [255, 239, 213],
1630	"peachpuff": [255, 218, 185],
1631	"peru": [205, 133, 63],
1632	"pink": [255, 192, 203],
1633	"plum": [221, 160, 221],
1634	"powderblue": [176, 224, 230],
1635	"purple": [128, 0, 128],
1636	"rebeccapurple": [102, 51, 153],
1637	"red": [255, 0, 0],
1638	"rosybrown": [188, 143, 143],
1639	"royalblue": [65, 105, 225],
1640	"saddlebrown": [139, 69, 19],
1641	"salmon": [250, 128, 114],
1642	"sandybrown": [244, 164, 96],
1643	"seagreen": [46, 139, 87],
1644	"seashell": [255, 245, 238],
1645	"sienna": [160, 82, 45],
1646	"silver": [192, 192, 192],
1647	"skyblue": [135, 206, 235],
1648	"slateblue": [106, 90, 205],
1649	"slategray": [112, 128, 144],
1650	"slategrey": [112, 128, 144],
1651	"snow": [255, 250, 250],
1652	"springgreen": [0, 255, 127],
1653	"steelblue": [70, 130, 180],
1654	"tan": [210, 180, 140],
1655	"teal": [0, 128, 128],
1656	"thistle": [216, 191, 216],
1657	"tomato": [255, 99, 71],
1658	"turquoise": [64, 224, 208],
1659	"violet": [238, 130, 238],
1660	"wheat": [245, 222, 179],
1661	"white": [255, 255, 255],
1662	"whitesmoke": [245, 245, 245],
1663	"yellow": [255, 255, 0],
1664	"yellowgreen": [154, 205, 50]
1665};
1666
1667},{}],6:[function(require,module,exports){
1668//! moment.js
1669
1670;(function (global, factory) {
1671    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
1672    typeof define === 'function' && define.amd ? define(factory) :
1673    global.moment = factory()
vendor: 35,273 bytes, lines 1673-2812
1673
1674}(this, (function () { 'use strict';
1675
1676    var hookCallback;
1677
1678    function hooks () {
1679        return hookCallback.apply(null, arguments);
1680    }
1681
1682    // This is done to register the method called with moment()
1683    // without creating circular dependencies.
1684    function setHookCallback (callback) {
1685        hookCallback = callback;
1686    }
1687
1688    function isArray(input) {
1689        return input instanceof Array || Object.prototype.toString.call(input) === '[object Array]';
1690    }
1691
1692    function isObject(input) {
1693        // IE8 will treat undefined and null as object if it wasn't for
1694        // input != null
1695        return input != null && Object.prototype.toString.call(input) === '[object Object]';
1696    }
1697
1698    function isObjectEmpty(obj) {
1699        if (Object.getOwnPropertyNames) {
1700            return (Object.getOwnPropertyNames(obj).length === 0);
1701        } else {
1702            var k;
1703            for (k in obj) {
1704                if (obj.hasOwnProperty(k)) {
1705                    return false;
1706                }
1707            }
1708            return true;
1709        }
1710    }
1711
1712    function isUndefined(input) {
1713        return input === void 0;
1714    }
1715
1716    function isNumber(input) {
1717        return typeof input === 'number' || Object.prototype.toString.call(input) === '[object Number]';
1718    }
1719
1720    function isDate(input) {
1721        return input instanceof Date || Object.prototype.toString.call(input) === '[object Date]';
1722    }
1723
1724    function map(arr, fn) {
1725        var res = [], i;
1726        for (i = 0; i < arr.length; ++i) {
1727            res.push(fn(arr[i], i));
1728        }
1729        return res;
1730    }
1731
1732    function hasOwnProp(a, b) {
1733        return Object.prototype.hasOwnProperty.call(a, b);
1734    }
1735
1736    function extend(a, b) {
1737        for (var i in b) {
1738            if (hasOwnProp(b, i)) {
1739                a[i] = b[i];
1740            }
1741        }
1742
1743        if (hasOwnProp(b, 'toString')) {
1744            a.toString = b.toString;
1745        }
1746
1747        if (hasOwnProp(b, 'valueOf')) {
1748            a.valueOf = b.valueOf;
1749        }
1750
1751        return a;
1752    }
1753
1754    function createUTC (input, format, locale, strict) {
1755        return createLocalOrUTC(input, format, locale, strict, true).utc();
1756    }
1757
1758    function defaultParsingFlags() {
1759        // We need to deep clone this object.
1760        return {
1761            empty           : false,
1762            unusedTokens    : [],
1763            unusedInput     : [],
1764            overflow        : -2,
1765            charsLeftOver   : 0,
1766            nullInput       : false,
1767            invalidMonth    : null,
1768            invalidFormat   : false,
1769            userInvalidated : false,
1770            iso             : false,
1771            parsedDateParts : [],
1772            meridiem        : null,
1773            rfc2822         : false,
1774            weekdayMismatch : false
1775        };
1776    }
1777
1778    function getParsingFlags(m) {
1779        if (m._pf == null) {
1780            m._pf = defaultParsingFlags();
1781        }
1782        return m._pf;
1783    }
1784
1785    var some;
1786    if (Array.prototype.some) {
1787        some = Array.prototype.some;
1788    } else {
1789        some = function (fun) {
1790            var t = Object(this);
1791            var len = t.length >>> 0;
1792
1793            for (var i = 0; i < len; i++) {
1794                if (i in t && fun.call(this, t[i], i, t)) {
1795                    return true;
1796                }
1797            }
1798
1799            return false;
1800        };
1801    }
1802
1803    function isValid(m) {
1804        if (m._isValid == null) {
1805            var flags = getParsingFlags(m);
1806            var parsedParts = some.call(flags.parsedDateParts, function (i) {
1807                return i != null;
1808            });
1809            var isNowValid = !isNaN(m._d.getTime()) &&
1810                flags.overflow < 0 &&
1811                !flags.empty &&
1812                !flags.invalidMonth &&
1813                !flags.invalidWeekday &&
1814                !flags.weekdayMismatch &&
1815                !flags.nullInput &&
1816                !flags.invalidFormat &&
1817                !flags.userInvalidated &&
1818                (!flags.meridiem || (flags.meridiem && parsedParts));
1819
1820            if (m._strict) {
1821                isNowValid = isNowValid &&
1822                    flags.charsLeftOver === 0 &&
1823                    flags.unusedTokens.length === 0 &&
1824                    flags.bigHour === undefined;
1825            }
1826
1827            if (Object.isFrozen == null || !Object.isFrozen(m)) {
1828                m._isValid = isNowValid;
1829            }
1830            else {
1831                return isNowValid;
1832            }
1833        }
1834        return m._isValid;
1835    }
1836
1837    function createInvalid (flags) {
1838        var m = createUTC(NaN);
1839        if (flags != null) {
1840            extend(getParsingFlags(m), flags);
1841        }
1842        else {
1843            getParsingFlags(m).userInvalidated = true;
1844        }
1845
1846        return m;
1847    }
1848
1849    // Plugins that add properties should also add the key here (null value),
1850    // so we can properly clone ourselves.
1851    var momentProperties = hooks.momentProperties = [];
1852
1853    function copyConfig(to, from) {
1854        var i, prop, val;
1855
1856        if (!isUndefined(from._isAMomentObject)) {
1857            to._isAMomentObject = from._isAMomentObject;
1858        }
1859        if (!isUndefined(from._i)) {
1860            to._i = from._i;
1861        }
1862        if (!isUndefined(from._f)) {
1863            to._f = from._f;
1864        }
1865        if (!isUndefined(from._l)) {
1866            to._l = from._l;
1867        }
1868        if (!isUndefined(from._strict)) {
1869            to._strict = from._strict;
1870        }
1871        if (!isUndefined(from._tzm)) {
1872            to._tzm = from._tzm;
1873        }
1874        if (!isUndefined(from._isUTC)) {
1875            to._isUTC = from._isUTC;
1876        }
1877        if (!isUndefined(from._offset)) {
1878            to._offset = from._offset;
1879        }
1880        if (!isUndefined(from._pf)) {
1881            to._pf = getParsingFlags(from);
1882        }
1883        if (!isUndefined(from._locale)) {
1884            to._locale = from._locale;
1885        }
1886
1887        if (momentProperties.length > 0) {
1888            for (i = 0; i < momentProperties.length; i++) {
1889                prop = momentProperties[i];
1890                val = from[prop];
1891                if (!isUndefined(val)) {
1892                    to[prop] = val;
1893                }
1894            }
1895        }
1896
1897        return to;
1898    }
1899
1900    var updateInProgress = false;
1901
1902    // Moment prototype object
1903    function Moment(config) {
1904        copyConfig(this, config);
1905        this._d = new Date(config._d != null ? config._d.getTime() : NaN);
1906        if (!this.isValid()) {
1907            this._d = new Date(NaN);
1908        }
1909        // Prevent infinite loop in case updateOffset creates new moment
1910        // objects.
1911        if (updateInProgress === false) {
1912            updateInProgress = true;
1913            hooks.updateOffset(this);
1914            updateInProgress = false;
1915        }
1916    }
1917
1918    function isMoment (obj) {
1919        return obj instanceof Moment || (obj != null && obj._isAMomentObject != null);
1920    }
1921
1922    function absFloor (number) {
1923        if (number < 0) {
1924            // -0 -> 0
1925            return Math.ceil(number) || 0;
1926        } else {
1927            return Math.floor(number);
1928        }
1929    }
1930
1931    function toInt(argumentForCoercion) {
1932        var coercedNumber = +argumentForCoercion,
1933            value = 0;
1934
1935        if (coercedNumber !== 0 && isFinite(coercedNumber)) {
1936            value = absFloor(coercedNumber);
1937        }
1938
1939        return value;
1940    }
1941
1942    // compare two arrays, return the number of differences
1943    function compareArrays(array1, array2, dontConvert) {
1944        var len = Math.min(array1.length, array2.length),
1945            lengthDiff = Math.abs(array1.length - array2.length),
1946            diffs = 0,
1947            i;
1948        for (i = 0; i < len; i++) {
1949            if ((dontConvert && array1[i] !== array2[i]) ||
1950                (!dontConvert && toInt(array1[i]) !== toInt(array2[i]))) {
1951                diffs++;
1952            }
1953        }
1954        return diffs + lengthDiff;
1955    }
1956
1957    function warn(msg) {
1958        if (hooks.suppressDeprecationWarnings === false &&
1959                (typeof console !==  'undefined') && console.warn) {
1960            console.warn('Deprecation warning: ' + msg);
1961        }
1962    }
1963
1964    function deprecate(msg, fn) {
1965        var firstTime = true;
1966
1967        return extend(function () {
1968            if (hooks.deprecationHandler != null) {
1969                hooks.deprecationHandler(null, msg);
1970            }
1971            if (firstTime) {
1972                var args = [];
1973                var arg;
1974                for (var i = 0; i < arguments.length; i++) {
1975                    arg = '';
1976                    if (typeof arguments[i] === 'object') {
1977                        arg += '\n[' + i + '] ';
1978                        for (var key in arguments[0]) {
1979                            arg += key + ': ' + arguments[0][key] + ', ';
1980                        }
1981                        arg = arg.slice(0, -2); // Remove trailing comma and space
1982                    } else {
1983                        arg = arguments[i];
1984                    }
1985                    args.push(arg);
1986                }
1987                warn(msg + '\nArguments: ' + Array.prototype.slice.call(args).join('') + '\n' + (new Error()).stack);
1988                firstTime = false;
1989            }
1990            return fn.apply(this, arguments);
1991        }, fn);
1992    }
1993
1994    var deprecations = {};
1995
1996    function deprecateSimple(name, msg) {
1997        if (hooks.deprecationHandler != null) {
1998            hooks.deprecationHandler(name, msg);
1999        }
2000        if (!deprecations[name]) {
2001            warn(msg);
2002            deprecations[name] = true;
2003        }
2004    }
2005
2006    hooks.suppressDeprecationWarnings = false;
2007    hooks.deprecationHandler = null;
2008
2009    function isFunction(input) {
2010        return input instanceof Function || Object.prototype.toString.call(input) === '[object Function]';
2011    }
2012
2013    function set (config) {
2014        var prop, i;
2015        for (i in config) {
2016            prop = config[i];
2017            if (isFunction(prop)) {
2018                this[i] = prop;
2019            } else {
2020                this['_' + i] = prop;
2021            }
2022        }
2023        this._config = config;
2024        // Lenient ordinal parsing accepts just a number in addition to
2025        // number + (possibly) stuff coming from _dayOfMonthOrdinalParse.
2026        // TODO: Remove "ordinalParse" fallback in next major release.
2027        this._dayOfMonthOrdinalParseLenient = new RegExp(
2028            (this._dayOfMonthOrdinalParse.source || this._ordinalParse.source) +
2029                '|' + (/\d{1,2}/).source);
2030    }
2031
2032    function mergeConfigs(parentConfig, childConfig) {
2033        var res = extend({}, parentConfig), prop;
2034        for (prop in childConfig) {
2035            if (hasOwnProp(childConfig, prop)) {
2036                if (isObject(parentConfig[prop]) && isObject(childConfig[prop])) {
2037                    res[prop] = {};
2038                    extend(res[prop], parentConfig[prop]);
2039                    extend(res[prop], childConfig[prop]);
2040                } else if (childConfig[prop] != null) {
2041                    res[prop] = childConfig[prop];
2042                } else {
2043                    delete res[prop];
2044                }
2045            }
2046        }
2047        for (prop in parentConfig) {
2048            if (hasOwnProp(parentConfig, prop) &&
2049                    !hasOwnProp(childConfig, prop) &&
2050                    isObject(parentConfig[prop])) {
2051                // make sure changes to properties don't modify parent config
2052                res[prop] = extend({}, res[prop]);
2053            }
2054        }
2055        return res;
2056    }
2057
2058    function Locale(config) {
2059        if (config != null) {
2060            this.set(config);
2061        }
2062    }
2063
2064    var keys;
2065
2066    if (Object.keys) {
2067        keys = Object.keys;
2068    } else {
2069        keys = function (obj) {
2070            var i, res = [];
2071            for (i in obj) {
2072                if (hasOwnProp(obj, i)) {
2073                    res.push(i);
2074                }
2075            }
2076            return res;
2077        };
2078    }
2079
2080    var defaultCalendar = {
2081        sameDay : '[Today at] LT',
2082        nextDay : '[Tomorrow at] LT',
2083        nextWeek : 'dddd [at] LT',
2084        lastDay : '[Yesterday at] LT',
2085        lastWeek : '[Last] dddd [at] LT',
2086        sameElse : 'L'
2087    };
2088
2089    function calendar (key, mom, now) {
2090        var output = this._calendar[key] || this._calendar['sameElse'];
2091        return isFunction(output) ? output.call(mom, now) : output;
2092    }
2093
2094    var defaultLongDateFormat = {
2095        LTS  : 'h:mm:ss A',
2096        LT   : 'h:mm A',
2097        L    : 'MM/DD/YYYY',
2098        LL   : 'MMMM D, YYYY',
2099        LLL  : 'MMMM D, YYYY h:mm A',
2100        LLLL : 'dddd, MMMM D, YYYY h:mm A'
2101    };
2102
2103    function longDateFormat (key) {
2104        var format = this._longDateFormat[key],
2105            formatUpper = this._longDateFormat[key.toUpperCase()];
2106
2107        if (format || !formatUpper) {
2108            return format;
2109        }
2110
2111        this._longDateFormat[key] = formatUpper.replace(/MMMM|MM|DD|dddd/g, function (val) {
2112            return val.slice(1);
2113        });
2114
2115        return this._longDateFormat[key];
2116    }
2117
2118    var defaultInvalidDate = 'Invalid date';
2119
2120    function invalidDate () {
2121        return this._invalidDate;
2122    }
2123
2124    var defaultOrdinal = '%d';
2125    var defaultDayOfMonthOrdinalParse = /\d{1,2}/;
2126
2127    function ordinal (number) {
2128        return this._ordinal.replace('%d', number);
2129    }
2130
2131    var defaultRelativeTime = {
2132        future : 'in %s',
2133        past   : '%s ago',
2134        s  : 'a few seconds',
2135        ss : '%d seconds',
2136        m  : 'a minute',
2137        mm : '%d minutes',
2138        h  : 'an hour',
2139        hh : '%d hours',
2140        d  : 'a day',
2141        dd : '%d days',
2142        M  : 'a month',
2143        MM : '%d months',
2144        y  : 'a year',
2145        yy : '%d years'
2146    };
2147
2148    function relativeTime (number, withoutSuffix, string, isFuture) {
2149        var output = this._relativeTime[string];
2150        return (isFunction(output)) ?
2151            output(number, withoutSuffix, string, isFuture) :
2152            output.replace(/%d/i, number);
2153    }
2154
2155    function pastFuture (diff, output) {
2156        var format = this._relativeTime[diff > 0 ? 'future' : 'past'];
2157        return isFunction(format) ? format(output) : format.replace(/%s/i, output);
2158    }
2159
2160    var aliases = {};
2161
2162    function addUnitAlias (unit, shorthand) {
2163        var lowerCase = unit.toLowerCase();
2164        aliases[lowerCase] = aliases[lowerCase + 's'] = aliases[shorthand] = unit;
2165    }
2166
2167    function normalizeUnits(units) {
2168        return typeof units === 'string' ? aliases[units] || aliases[units.toLowerCase()] : undefined;
2169    }
2170
2171    function normalizeObjectUnits(inputObject) {
2172        var normalizedInput = {},
2173            normalizedProp,
2174            prop;
2175
2176        for (prop in inputObject) {
2177            if (hasOwnProp(inputObject, prop)) {
2178                normalizedProp = normalizeUnits(prop);
2179                if (normalizedProp) {
2180                    normalizedInput[normalizedProp] = inputObject[prop];
2181                }
2182            }
2183        }
2184
2185        return normalizedInput;
2186    }
2187
2188    var priorities = {};
2189
2190    function addUnitPriority(unit, priority) {
2191        priorities[unit] = priority;
2192    }
2193
2194    function getPrioritizedUnits(unitsObj) {
2195        var units = [];
2196        for (var u in unitsObj) {
2197            units.push({unit: u, priority: priorities[u]});
2198        }
2199        units.sort(function (a, b) {
2200            return a.priority - b.priority;
2201        });
2202        return units;
2203    }
2204
2205    function zeroFill(number, targetLength, forceSign) {
2206        var absNumber = '' + Math.abs(number),
2207            zerosToFill = targetLength - absNumber.length,
2208            sign = number >= 0;
2209        return (sign ? (forceSign ? '+' : '') : '-') +
2210            Math.pow(10, Math.max(0, zerosToFill)).toString().substr(1) + absNumber;
2211    }
2212
2213    var formattingTokens = /(\[[^\[]*\])|(\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|YYYYYY|YYYYY|YYYY|YY|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g;
2214
2215    var localFormattingTokens = /(\[[^\[]*\])|(\\)?(LTS|LT|LL?L?L?|l{1,4})/g;
2216
2217    var formatFunctions = {};
2218
2219    var formatTokenFunctions = {};
2220
2221    // token:    'M'
2222    // padded:   ['MM', 2]
2223    // ordinal:  'Mo'
2224    // callback: function () { this.month() + 1 }
2225    function addFormatToken (token, padded, ordinal, callback) {
2226        var func = callback;
2227        if (typeof callback === 'string') {
2228            func = function () {
2229                return this[callback]();
2230            };
2231        }
2232        if (token) {
2233            formatTokenFunctions[token] = func;
2234        }
2235        if (padded) {
2236            formatTokenFunctions[padded[0]] = function () {
2237                return zeroFill(func.apply(this, arguments), padded[1], padded[2]);
2238            };
2239        }
2240        if (ordinal) {
2241            formatTokenFunctions[ordinal] = function () {
2242                return this.localeData().ordinal(func.apply(this, arguments), token);
2243            };
2244        }
2245    }
2246
2247    function removeFormattingTokens(input) {
2248        if (input.match(/\[[\s\S]/)) {
2249            return input.replace(/^\[|\]$/g, '');
2250        }
2251        return input.replace(/\\/g, '');
2252    }
2253
2254    function makeFormatFunction(format) {
2255        var array = format.match(formattingTokens), i, length;
2256
2257        for (i = 0, length = array.length; i < length; i++) {
2258            if (formatTokenFunctions[array[i]]) {
2259                array[i] = formatTokenFunctions[array[i]];
2260            } else {
2261                array[i] = removeFormattingTokens(array[i]);
2262            }
2263        }
2264
2265        return function (mom) {
2266            var output = '', i;
2267            for (i = 0; i < length; i++) {
2268                output += isFunction(array[i]) ? array[i].call(mom, format) : array[i];
2269            }
2270            return output;
2271        };
2272    }
2273
2274    // format date using native date object
2275    function formatMoment(m, format) {
2276        if (!m.isValid()) {
2277            return m.localeData().invalidDate();
2278        }
2279
2280        format = expandFormat(format, m.localeData());
2281        formatFunctions[format] = formatFunctions[format] || makeFormatFunction(format);
2282
2283        return formatFunctions[format](m);
2284    }
2285
2286    function expandFormat(format, locale) {
2287        var i = 5;
2288
2289        function replaceLongDateFormatTokens(input) {
2290            return locale.longDateFormat(input) || input;
2291        }
2292
2293        localFormattingTokens.lastIndex = 0;
2294        while (i >= 0 && localFormattingTokens.test(format)) {
2295            format = format.replace(localFormattingTokens, replaceLongDateFormatTokens);
2296            localFormattingTokens.lastIndex = 0;
2297            i -= 1;
2298        }
2299
2300        return format;
2301    }
2302
2303    var match1         = /\d/;            //       0 - 9
2304    var match2         = /\d\d/;          //      00 - 99
2305    var match3         = /\d{3}/;         //     000 - 999
2306    var match4         = /\d{4}/;         //    0000 - 9999
2307    var match6         = /[+-]?\d{6}/;    // -999999 - 999999
2308    var match1to2      = /\d\d?/;         //       0 - 99
2309    var match3to4      = /\d\d\d\d?/;     //     999 - 9999
2310    var match5to6      = /\d\d\d\d\d\d?/; //   99999 - 999999
2311    var match1to3      = /\d{1,3}/;       //       0 - 999
2312    var match1to4      = /\d{1,4}/;       //       0 - 9999
2313    var match1to6      = /[+-]?\d{1,6}/;  // -999999 - 999999
2314
2315    var matchUnsigned  = /\d+/;           //       0 - inf
2316    var matchSigned    = /[+-]?\d+/;      //    -inf - inf
2317
2318    var matchOffset    = /Z|[+-]\d\d:?\d\d/gi; // +00:00 -00:00 +0000 -0000 or Z
2319    var matchShortOffset = /Z|[+-]\d\d(?::?\d\d)?/gi; // +00 -00 +00:00 -00:00 +0000 -0000 or Z
2320
2321    var matchTimestamp = /[+-]?\d+(\.\d{1,3})?/; // 123456789 123456789.123
2322
2323    // any word (or two) characters or numbers including two/three word month in arabic.
2324    // includes scottish gaelic two word and hyphenated months
2325    var matchWord = /[0-9]{0,256}['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFF07\uFF10-\uFFEF]{1,256}|[\u0600-\u06FF\/]{1,256}(\s*?[\u0600-\u06FF]{1,256}){1,2}/i;
2326
2327    var regexes = {};
2328
2329    function addRegexToken (token, regex, strictRegex) {
2330        regexes[token] = isFunction(regex) ? regex : function (isStrict, localeData) {
2331            return (isStrict && strictRegex) ? strictRegex : regex;
2332        };
2333    }
2334
2335    function getParseRegexForToken (token, config) {
2336        if (!hasOwnProp(regexes, token)) {
2337            return new RegExp(unescapeFormat(token));
2338        }
2339
2340        return regexes[token](config._strict, config._locale);
2341    }
2342
2343    // Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript
2344    function unescapeFormat(s) {
2345        return regexEscape(s.replace('\\', '').replace(/\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g, function (matched, p1, p2, p3, p4) {
2346            return p1 || p2 || p3 || p4;
2347        }));
2348    }
2349
2350    function regexEscape(s) {
2351        return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
2352    }
2353
2354    var tokens = {};
2355
2356    function addParseToken (token, callback) {
2357        var i, func = callback;
2358        if (typeof token === 'string') {
2359            token = [token];
2360        }
2361        if (isNumber(callback)) {
2362            func = function (input, array) {
2363                array[callback] = toInt(input);
2364            };
2365        }
2366        for (i = 0; i < token.length; i++) {
2367            tokens[token[i]] = func;
2368        }
2369    }
2370
2371    function addWeekParseToken (token, callback) {
2372        addParseToken(token, function (input, array, config, token) {
2373            config._w = config._w || {};
2374            callback(input, config._w, config, token);
2375        });
2376    }
2377
2378    function addTimeToArrayFromToken(token, input, config) {
2379        if (input != null && hasOwnProp(tokens, token)) {
2380            tokens[token](input, config._a, config, token);
2381        }
2382    }
2383
2384    var YEAR = 0;
2385    var MONTH = 1;
2386    var DATE = 2;
2387    var HOUR = 3;
2388    var MINUTE = 4;
2389    var SECOND = 5;
2390    var MILLISECOND = 6;
2391    var WEEK = 7;
2392    var WEEKDAY = 8;
2393
2394    // FORMATTING
2395
2396    addFormatToken('Y', 0, 0, function () {
2397        var y = this.year();
2398        return y <= 9999 ? '' + y : '+' + y;
2399    });
2400
2401    addFormatToken(0, ['YY', 2], 0, function () {
2402        return this.year() % 100;
2403    });
2404
2405    addFormatToken(0, ['YYYY',   4],       0, 'year');
2406    addFormatToken(0, ['YYYYY',  5],       0, 'year');
2407    addFormatToken(0, ['YYYYYY', 6, true], 0, 'year');
2408
2409    // ALIASES
2410
2411    addUnitAlias('year', 'y');
2412
2413    // PRIORITIES
2414
2415    addUnitPriority('year', 1);
2416
2417    // PARSING
2418
2419    addRegexToken('Y',      matchSigned);
2420    addRegexToken('YY',     match1to2, match2);
2421    addRegexToken('YYYY',   match1to4, match4);
2422    addRegexToken('YYYYY',  match1to6, match6);
2423    addRegexToken('YYYYYY', match1to6, match6);
2424
2425    addParseToken(['YYYYY', 'YYYYYY'], YEAR);
2426    addParseToken('YYYY', function (input, array) {
2427        array[YEAR] = input.length === 2 ? hooks.parseTwoDigitYear(input) : toInt(input);
2428    });
2429    addParseToken('YY', function (input, array) {
2430        array[YEAR] = hooks.parseTwoDigitYear(input);
2431    });
2432    addParseToken('Y', function (input, array) {
2433        array[YEAR] = parseInt(input, 10);
2434    });
2435
2436    // HELPERS
2437
2438    function daysInYear(year) {
2439        return isLeapYear(year) ? 366 : 365;
2440    }
2441
2442    function isLeapYear(year) {
2443        return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
2444    }
2445
2446    // HOOKS
2447
2448    hooks.parseTwoDigitYear = function (input) {
2449        return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
2450    };
2451
2452    // MOMENTS
2453
2454    var getSetYear = makeGetSet('FullYear', true);
2455
2456    function getIsLeapYear () {
2457        return isLeapYear(this.year());
2458    }
2459
2460    function makeGetSet (unit, keepTime) {
2461        return function (value) {
2462            if (value != null) {
2463                set$1(this, unit, value);
2464                hooks.updateOffset(this, keepTime);
2465                return this;
2466            } else {
2467                return get(this, unit);
2468            }
2469        };
2470    }
2471
2472    function get (mom, unit) {
2473        return mom.isValid() ?
2474            mom._d['get' + (mom._isUTC ? 'UTC' : '') + unit]() : NaN;
2475    }
2476
2477    function set$1 (mom, unit, value) {
2478        if (mom.isValid() && !isNaN(value)) {
2479            if (unit === 'FullYear' && isLeapYear(mom.year()) && mom.month() === 1 && mom.date() === 29) {
2480                mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value, mom.month(), daysInMonth(value, mom.month()));
2481            }
2482            else {
2483                mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value);
2484            }
2485        }
2486    }
2487
2488    // MOMENTS
2489
2490    function stringGet (units) {
2491        units = normalizeUnits(units);
2492        if (isFunction(this[units])) {
2493            return this[units]();
2494        }
2495        return this;
2496    }
2497
2498
2499    function stringSet (units, value) {
2500        if (typeof units === 'object') {
2501            units = normalizeObjectUnits(units);
2502            var prioritized = getPrioritizedUnits(units);
2503            for (var i = 0; i < prioritized.length; i++) {
2504                this[prioritized[i].unit](units[prioritized[i].unit]);
2505            }
2506        } else {
2507            units = normalizeUnits(units);
2508            if (isFunction(this[units])) {
2509                return this[units](value);
2510            }
2511        }
2512        return this;
2513    }
2514
2515    function mod(n, x) {
2516        return ((n % x) + x) % x;
2517    }
2518
2519    var indexOf;
2520
2521    if (Array.prototype.indexOf) {
2522        indexOf = Array.prototype.indexOf;
2523    } else {
2524        indexOf = function (o) {
2525            // I know
2526            var i;
2527            for (i = 0; i < this.length; ++i) {
2528                if (this[i] === o) {
2529                    return i;
2530                }
2531            }
2532            return -1;
2533        };
2534    }
2535
2536    function daysInMonth(year, month) {
2537        if (isNaN(year) || isNaN(month)) {
2538            return NaN;
2539        }
2540        var modMonth = mod(month, 12);
2541        year += (month - modMonth) / 12;
2542        return modMonth === 1 ? (isLeapYear(year) ? 29 : 28) : (31 - modMonth % 7 % 2);
2543    }
2544
2545    // FORMATTING
2546
2547    addFormatToken('M', ['MM', 2], 'Mo', function () {
2548        return this.month() + 1;
2549    });
2550
2551    addFormatToken('MMM', 0, 0, function (format) {
2552        return this.localeData().monthsShort(this, format);
2553    });
2554
2555    addFormatToken('MMMM', 0, 0, function (format) {
2556        return this.localeData().months(this, format);
2557    });
2558
2559    // ALIASES
2560
2561    addUnitAlias('month', 'M');
2562
2563    // PRIORITY
2564
2565    addUnitPriority('month', 8);
2566
2567    // PARSING
2568
2569    addRegexToken('M',    match1to2);
2570    addRegexToken('MM',   match1to2, match2);
2571    addRegexToken('MMM',  function (isStrict, locale) {
2572        return locale.monthsShortRegex(isStrict);
2573    });
2574    addRegexToken('MMMM', function (isStrict, locale) {
2575        return locale.monthsRegex(isStrict);
2576    });
2577
2578    addParseToken(['M', 'MM'], function (input, array) {
2579        array[MONTH] = toInt(input) - 1;
2580    });
2581
2582    addParseToken(['MMM', 'MMMM'], function (input, array, config, token) {
2583        var month = config._locale.monthsParse(input, token, config._strict);
2584        // if we didn't find a month name, mark the date as invalid.
2585        if (month != null) {
2586            array[MONTH] = month;
2587        } else {
2588            getParsingFlags(config).invalidMonth = input;
2589        }
2590    });
2591
2592    // LOCALES
2593
2594    var MONTHS_IN_FORMAT = /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?/;
2595    var defaultLocaleMonths = 'January_February_March_April_May_June_July_August_September_October_November_December'.split('_');
2596    function localeMonths (m, format) {
2597        if (!m) {
2598            return isArray(this._months) ? this._months :
2599                this._months['standalone'];
2600        }
2601        return isArray(this._months) ? this._months[m.month()] :
2602            this._months[(this._months.isFormat || MONTHS_IN_FORMAT).test(format) ? 'format' : 'standalone'][m.month()];
2603    }
2604
2605    var defaultLocaleMonthsShort = 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_');
2606    function localeMonthsShort (m, format) {
2607        if (!m) {
2608            return isArray(this._monthsShort) ? this._monthsShort :
2609                this._monthsShort['standalone'];
2610        }
2611        return isArray(this._monthsShort) ? this._monthsShort[m.month()] :
2612            this._monthsShort[MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone'][m.month()];
2613    }
2614
2615    function handleStrictParse(monthName, format, strict) {
2616        var i, ii, mom, llc = monthName.toLocaleLowerCase();
2617        if (!this._monthsParse) {
2618            // this is not used
2619            this._monthsParse = [];
2620            this._longMonthsParse = [];
2621            this._shortMonthsParse = [];
2622            for (i = 0; i < 12; ++i) {
2623                mom = createUTC([2000, i]);
2624                this._shortMonthsParse[i] = this.monthsShort(mom, '').toLocaleLowerCase();
2625                this._longMonthsParse[i] = this.months(mom, '').toLocaleLowerCase();
2626            }
2627        }
2628
2629        if (strict) {
2630            if (format === 'MMM') {
2631                ii = indexOf.call(this._shortMonthsParse, llc);
2632                return ii !== -1 ? ii : null;
2633            } else {
2634                ii = indexOf.call(this._longMonthsParse, llc);
2635                return ii !== -1 ? ii : null;
2636            }
2637        } else {
2638            if (format === 'MMM') {
2639                ii = indexOf.call(this._shortMonthsParse, llc);
2640                if (ii !== -1) {
2641                    return ii;
2642                }
2643                ii = indexOf.call(this._longMonthsParse, llc);
2644                return ii !== -1 ? ii : null;
2645            } else {
2646                ii = indexOf.call(this._longMonthsParse, llc);
2647                if (ii !== -1) {
2648                    return ii;
2649                }
2650                ii = indexOf.call(this._shortMonthsParse, llc);
2651                return ii !== -1 ? ii : null;
2652            }
2653        }
2654    }
2655
2656    function localeMonthsParse (monthName, format, strict) {
2657        var i, mom, regex;
2658
2659        if (this._monthsParseExact) {
2660            return handleStrictParse.call(this, monthName, format, strict);
2661        }
2662
2663        if (!this._monthsParse) {
2664            this._monthsParse = [];
2665            this._longMonthsParse = [];
2666            this._shortMonthsParse = [];
2667        }
2668
2669        // TODO: add sorting
2670        // Sorting makes sure if one month (or abbr) is a prefix of another
2671        // see sorting in computeMonthsParse
2672        for (i = 0; i < 12; i++) {
2673            // make the regex if we don't have it already
2674            mom = createUTC([2000, i]);
2675            if (strict && !this._longMonthsParse[i]) {
2676                this._longMonthsParse[i] = new RegExp('^' + this.months(mom, '').replace('.', '') + '$', 'i');
2677                this._shortMonthsParse[i] = new RegExp('^' + this.monthsShort(mom, '').replace('.', '') + '$', 'i');
2678            }
2679            if (!strict && !this._monthsParse[i]) {
2680                regex = '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
2681                this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
2682            }
2683            // test the regex
2684            if (strict && format === 'MMMM' && this._longMonthsParse[i].test(monthName)) {
2685                return i;
2686            } else if (strict && format === 'MMM' && this._shortMonthsParse[i].test(monthName)) {
2687                return i;
2688            } else if (!strict && this._monthsParse[i].test(monthName)) {
2689                return i;
2690            }
2691        }
2692    }
2693
2694    // MOMENTS
2695
2696    function setMonth (mom, value) {
2697        var dayOfMonth;
2698
2699        if (!mom.isValid()) {
2700            // No op
2701            return mom;
2702        }
2703
2704        if (typeof value === 'string') {
2705            if (/^\d+$/.test(value)) {
2706                value = toInt(value);
2707            } else {
2708                value = mom.localeData().monthsParse(value);
2709                // TODO: Another silent failure?
2710                if (!isNumber(value)) {
2711                    return mom;
2712                }
2713            }
2714        }
2715
2716        dayOfMonth = Math.min(mom.date(), daysInMonth(mom.year(), value));
2717        mom._d['set' + (mom._isUTC ? 'UTC' : '') + 'Month'](value, dayOfMonth);
2718        return mom;
2719    }
2720
2721    function getSetMonth (value) {
2722        if (value != null) {
2723            setMonth(this, value);
2724            hooks.updateOffset(this, true);
2725            return this;
2726        } else {
2727            return get(this, 'Month');
2728        }
2729    }
2730
2731    function getDaysInMonth () {
2732        return daysInMonth(this.year(), this.month());
2733    }
2734
2735    var defaultMonthsShortRegex = matchWord;
2736    function monthsShortRegex (isStrict) {
2737        if (this._monthsParseExact) {
2738            if (!hasOwnProp(this, '_monthsRegex')) {
2739                computeMonthsParse.call(this);
2740            }
2741            if (isStrict) {
2742                return this._monthsShortStrictRegex;
2743            } else {
2744                return this._monthsShortRegex;
2745            }
2746        } else {
2747            if (!hasOwnProp(this, '_monthsShortRegex')) {
2748                this._monthsShortRegex = defaultMonthsShortRegex;
2749            }
2750            return this._monthsShortStrictRegex && isStrict ?
2751                this._monthsShortStrictRegex : this._monthsShortRegex;
2752        }
2753    }
2754
2755    var defaultMonthsRegex = matchWord;
2756    function monthsRegex (isStrict) {
2757        if (this._monthsParseExact) {
2758            if (!hasOwnProp(this, '_monthsRegex')) {
2759                computeMonthsParse.call(this);
2760            }
2761            if (isStrict) {
2762                return this._monthsStrictRegex;
2763            } else {
2764                return this._monthsRegex;
2765            }
2766        } else {
2767            if (!hasOwnProp(this, '_monthsRegex')) {
2768                this._monthsRegex = defaultMonthsRegex;
2769            }
2770            return this._monthsStrictRegex && isStrict ?
2771                this._monthsStrictRegex : this._monthsRegex;
2772        }
2773    }
2774
2775    function computeMonthsParse () {
2776        function cmpLenRev(a, b) {
2777            return b.length - a.length;
2778        }
2779
2780        var shortPieces = [], longPieces = [], mixedPieces = [],
2781            i, mom;
2782        for (i = 0; i < 12; i++) {
2783            // make the regex if we don't have it already
2784            mom = createUTC([2000, i]);
2785            shortPieces.push(this.monthsShort(mom, ''));
2786            longPieces.push(this.months(mom, ''));
2787            mixedPieces.push(this.months(mom, ''));
2788            mixedPieces.push(this.monthsShort(mom, ''));
2789        }
2790        // Sorting makes sure if one month (or abbr) is a prefix of another it
2791        // will match the longer piece.
2792        shortPieces.sort(cmpLenRev);
2793        longPieces.sort(cmpLenRev);
2794        mixedPieces.sort(cmpLenRev);
2795        for (i = 0; i < 12; i++) {
2796            shortPieces[i] = regexEscape(shortPieces[i]);
2797            longPieces[i] = regexEscape(longPieces[i]);
2798        }
2799        for (i = 0; i < 24; i++) {
2800            mixedPieces[i] = regexEscape(mixedPieces[i]);
2801        }
2802
2803        this._monthsRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
2804        this._monthsShortRegex = this._monthsRegex;
2805        this._monthsStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
2806        this._monthsShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
2807    }
2808
2809    function createDate (y, m, d, h, M, s, ms) {
2810        // can't just apply() to create a date:
2811        // https://stackoverflow.com/q/181348
2812        var date
vendor: 3,190 bytes, lines 2812-2914
2812 = new Date(y, m, d, h, M, s, ms);
2813
2814        // the date constructor remaps years 0-99 to 1900-1999
2815        if (y < 100 && y >= 0 && isFinite(date.getFullYear())) {
2816            date.setFullYear(y);
2817        }
2818        return date;
2819    }
2820
2821    function createUTCDate (y) {
2822        var date = new Date(Date.UTC.apply(null, arguments));
2823
2824        // the Date.UTC function remaps years 0-99 to 1900-1999
2825        if (y < 100 && y >= 0 && isFinite(date.getUTCFullYear())) {
2826            date.setUTCFullYear(y);
2827        }
2828        return date;
2829    }
2830
2831    // start-of-first-week - start-of-year
2832    function firstWeekOffset(year, dow, doy) {
2833        var // first-week day -- which january is always in the first week (4 for iso, 1 for other)
2834            fwd = 7 + dow - doy,
2835            // first-week day local weekday -- which local weekday is fwd
2836            fwdlw = (7 + createUTCDate(year, 0, fwd).getUTCDay() - dow) % 7;
2837
2838        return -fwdlw + fwd - 1;
2839    }
2840
2841    // https://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
2842    function dayOfYearFromWeeks(year, week, weekday, dow, doy) {
2843        var localWeekday = (7 + weekday - dow) % 7,
2844            weekOffset = firstWeekOffset(year, dow, doy),
2845            dayOfYear = 1 + 7 * (week - 1) + localWeekday + weekOffset,
2846            resYear, resDayOfYear;
2847
2848        if (dayOfYear <= 0) {
2849            resYear = year - 1;
2850            resDayOfYear = daysInYear(resYear) + dayOfYear;
2851        } else if (dayOfYear > daysInYear(year)) {
2852            resYear = year + 1;
2853            resDayOfYear = dayOfYear - daysInYear(year);
2854        } else {
2855            resYear = year;
2856            resDayOfYear = dayOfYear;
2857        }
2858
2859        return {
2860            year: resYear,
2861            dayOfYear: resDayOfYear
2862        };
2863    }
2864
2865    function weekOfYear(mom, dow, doy) {
2866        var weekOffset = firstWeekOffset(mom.year(), dow, doy),
2867            week = Math.floor((mom.dayOfYear() - weekOffset - 1) / 7) + 1,
2868            resWeek, resYear;
2869
2870        if (week < 1) {
2871            resYear = mom.year() - 1;
2872            resWeek = week + weeksInYear(resYear, dow, doy);
2873        } else if (week > weeksInYear(mom.year(), dow, doy)) {
2874            resWeek = week - weeksInYear(mom.year(), dow, doy);
2875            resYear = mom.year() + 1;
2876        } else {
2877            resYear = mom.year();
2878            resWeek = week;
2879        }
2880
2881        return {
2882            week: resWeek,
2883            year: resYear
2884        };
2885    }
2886
2887    function weeksInYear(year, dow, doy) {
2888        var weekOffset = firstWeekOffset(year, dow, doy),
2889            weekOffsetNext = firstWeekOffset(year + 1, dow, doy);
2890        return (daysInYear(year) - weekOffset + weekOffsetNext) / 7;
2891    }
2892
2893    // FORMATTING
2894
2895    addFormatToken('w', ['ww', 2], 'wo', 'week');
2896    addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek');
2897
2898    // ALIASES
2899
2900    addUnitAlias('week', 'w');
2901    addUnitAlias('isoWeek', 'W');
2902
2903    // PRIORITIES
2904
2905    addUnitPriority('week', 5);
2906    addUnitPriority('isoWeek', 5);
2907
2908    // PARSING
2909
2910    addRegexToken('w',  match1to2);
2911    addRegexToken('ww', match1to2, match2);
2912    addRegexToken('W',  match1to2);
2913    addRegexToken('WW', match1to2, match2);
2914
vendor: 16,384 bytes, lines 2915-3397
2915    addWeekParseToken(['w', 'ww', 'W', 'WW'], function (input, week, config, token) {
2916        week[token.substr(0, 1)] = toInt(input);
2917    });
2918
2919    // HELPERS
2920
2921    // LOCALES
2922
2923    function localeWeek (mom) {
2924        return weekOfYear(mom, this._week.dow, this._week.doy).week;
2925    }
2926
2927    var defaultLocaleWeek = {
2928        dow : 0, // Sunday is the first day of the week.
2929        doy : 6  // The week that contains Jan 1st is the first week of the year.
2930    };
2931
2932    function localeFirstDayOfWeek () {
2933        return this._week.dow;
2934    }
2935
2936    function localeFirstDayOfYear () {
2937        return this._week.doy;
2938    }
2939
2940    // MOMENTS
2941
2942    function getSetWeek (input) {
2943        var week = this.localeData().week(this);
2944        return input == null ? week : this.add((input - week) * 7, 'd');
2945    }
2946
2947    function getSetISOWeek (input) {
2948        var week = weekOfYear(this, 1, 4).week;
2949        return input == null ? week : this.add((input - week) * 7, 'd');
2950    }
2951
2952    // FORMATTING
2953
2954    addFormatToken('d', 0, 'do', 'day');
2955
2956    addFormatToken('dd', 0, 0, function (format) {
2957        return this.localeData().weekdaysMin(this, format);
2958    });
2959
2960    addFormatToken('ddd', 0, 0, function (format) {
2961        return this.localeData().weekdaysShort(this, format);
2962    });
2963
2964    addFormatToken('dddd', 0, 0, function (format) {
2965        return this.localeData().weekdays(this, format);
2966    });
2967
2968    addFormatToken('e', 0, 0, 'weekday');
2969    addFormatToken('E', 0, 0, 'isoWeekday');
2970
2971    // ALIASES
2972
2973    addUnitAlias('day', 'd');
2974    addUnitAlias('weekday', 'e');
2975    addUnitAlias('isoWeekday', 'E');
2976
2977    // PRIORITY
2978    addUnitPriority('day', 11);
2979    addUnitPriority('weekday', 11);
2980    addUnitPriority('isoWeekday', 11);
2981
2982    // PARSING
2983
2984    addRegexToken('d',    match1to2);
2985    addRegexToken('e',    match1to2);
2986    addRegexToken('E',    match1to2);
2987    addRegexToken('dd',   function (isStrict, locale) {
2988        return locale.weekdaysMinRegex(isStrict);
2989    });
2990    addRegexToken('ddd',   function (isStrict, locale) {
2991        return locale.weekdaysShortRegex(isStrict);
2992    });
2993    addRegexToken('dddd',   function (isStrict, locale) {
2994        return locale.weekdaysRegex(isStrict);
2995    });
2996
2997    addWeekParseToken(['dd', 'ddd', 'dddd'], function (input, week, config, token) {
2998        var weekday = config._locale.weekdaysParse(input, token, config._strict);
2999        // if we didn't get a weekday name, mark the date as invalid
3000        if (weekday != null) {
3001            week.d = weekday;
3002        } else {
3003            getParsingFlags(config).invalidWeekday = input;
3004        }
3005    });
3006
3007    addWeekParseToken(['d', 'e', 'E'], function (input, week, config, token) {
3008        week[token] = toInt(input);
3009    });
3010
3011    // HELPERS
3012
3013    function parseWeekday(input, locale) {
3014        if (typeof input !== 'string') {
3015            return input;
3016        }
3017
3018        if (!isNaN(input)) {
3019            return parseInt(input, 10);
3020        }
3021
3022        input = locale.weekdaysParse(input);
3023        if (typeof input === 'number') {
3024            return input;
3025        }
3026
3027        return null;
3028    }
3029
3030    function parseIsoWeekday(input, locale) {
3031        if (typeof input === 'string') {
3032            return locale.weekdaysParse(input) % 7 || 7;
3033        }
3034        return isNaN(input) ? null : input;
3035    }
3036
3037    // LOCALES
3038
3039    var defaultLocaleWeekdays = 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_');
3040    function localeWeekdays (m, format) {
3041        if (!m) {
3042            return isArray(this._weekdays) ? this._weekdays :
3043                this._weekdays['standalone'];
3044        }
3045        return isArray(this._weekdays) ? this._weekdays[m.day()] :
3046            this._weekdays[this._weekdays.isFormat.test(format) ? 'format' : 'standalone'][m.day()];
3047    }
3048
3049    var defaultLocaleWeekdaysShort = 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_');
3050    function localeWeekdaysShort (m) {
3051        return (m) ? this._weekdaysShort[m.day()] : this._weekdaysShort;
3052    }
3053
3054    var defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_');
3055    function localeWeekdaysMin (m) {
3056        return (m) ? this._weekdaysMin[m.day()] : this._weekdaysMin;
3057    }
3058
3059    function handleStrictParse$1(weekdayName, format, strict) {
3060        var i, ii, mom, llc = weekdayName.toLocaleLowerCase();
3061        if (!this._weekdaysParse) {
3062            this._weekdaysParse = [];
3063            this._shortWeekdaysParse = [];
3064            this._minWeekdaysParse = [];
3065
3066            for (i = 0; i < 7; ++i) {
3067                mom = createUTC([2000, 1]).day(i);
3068                this._minWeekdaysParse[i] = this.weekdaysMin(mom, '').toLocaleLowerCase();
3069                this._shortWeekdaysParse[i] = this.weekdaysShort(mom, '').toLocaleLowerCase();
3070                this._weekdaysParse[i] = this.weekdays(mom, '').toLocaleLowerCase();
3071            }
3072        }
3073
3074        if (strict) {
3075            if (format === 'dddd') {
3076                ii = indexOf.call(this._weekdaysParse, llc);
3077                return ii !== -1 ? ii : null;
3078            } else if (format === 'ddd') {
3079                ii = indexOf.call(this._shortWeekdaysParse, llc);
3080                return ii !== -1 ? ii : null;
3081            } else {
3082                ii = indexOf.call(this._minWeekdaysParse, llc);
3083                return ii !== -1 ? ii : null;
3084            }
3085        } else {
3086            if (format === 'dddd') {
3087                ii = indexOf.call(this._weekdaysParse, llc);
3088                if (ii !== -1) {
3089                    return ii;
3090                }
3091                ii = indexOf.call(this._shortWeekdaysParse, llc);
3092                if (ii !== -1) {
3093                    return ii;
3094                }
3095                ii = indexOf.call(this._minWeekdaysParse, llc);
3096                return ii !== -1 ? ii : null;
3097            } else if (format === 'ddd') {
3098                ii = indexOf.call(this._shortWeekdaysParse, llc);
3099                if (ii !== -1) {
3100                    return ii;
3101                }
3102                ii = indexOf.call(this._weekdaysParse, llc);
3103                if (ii !== -1) {
3104                    return ii;
3105                }
3106                ii = indexOf.call(this._minWeekdaysParse, llc);
3107                return ii !== -1 ? ii : null;
3108            } else {
3109                ii = indexOf.call(this._minWeekdaysParse, llc);
3110                if (ii !== -1) {
3111                    return ii;
3112                }
3113                ii = indexOf.call(this._weekdaysParse, llc);
3114                if (ii !== -1) {
3115                    return ii;
3116                }
3117                ii = indexOf.call(this._shortWeekdaysParse, llc);
3118                return ii !== -1 ? ii : null;
3119            }
3120        }
3121    }
3122
3123    function localeWeekdaysParse (weekdayName, format, strict) {
3124        var i, mom, regex;
3125
3126        if (this._weekdaysParseExact) {
3127            return handleStrictParse$1.call(this, weekdayName, format, strict);
3128        }
3129
3130        if (!this._weekdaysParse) {
3131            this._weekdaysParse = [];
3132            this._minWeekdaysParse = [];
3133            this._shortWeekdaysParse = [];
3134            this._fullWeekdaysParse = [];
3135        }
3136
3137        for (i = 0; i < 7; i++) {
3138            // make the regex if we don't have it already
3139
3140            mom = createUTC([2000, 1]).day(i);
3141            if (strict && !this._fullWeekdaysParse[i]) {
3142                this._fullWeekdaysParse[i] = new RegExp('^' + this.weekdays(mom, '').replace('.', '\\.?') + '$', 'i');
3143                this._shortWeekdaysParse[i] = new RegExp('^' + this.weekdaysShort(mom, '').replace('.', '\\.?') + '$', 'i');
3144                this._minWeekdaysParse[i] = new RegExp('^' + this.weekdaysMin(mom, '').replace('.', '\\.?') + '$', 'i');
3145            }
3146            if (!this._weekdaysParse[i]) {
3147                regex = '^' + this.weekdays(mom, '') + '|^' + this.weekdaysShort(mom, '') + '|^' + this.weekdaysMin(mom, '');
3148                this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
3149            }
3150            // test the regex
3151            if (strict && format === 'dddd' && this._fullWeekdaysParse[i].test(weekdayName)) {
3152                return i;
3153            } else if (strict && format === 'ddd' && this._shortWeekdaysParse[i].test(weekdayName)) {
3154                return i;
3155            } else if (strict && format === 'dd' && this._minWeekdaysParse[i].test(weekdayName)) {
3156                return i;
3157            } else if (!strict && this._weekdaysParse[i].test(weekdayName)) {
3158                return i;
3159            }
3160        }
3161    }
3162
3163    // MOMENTS
3164
3165    function getSetDayOfWeek (input) {
3166        if (!this.isValid()) {
3167            return input != null ? this : NaN;
3168        }
3169        var day = this._isUTC ? this._d.getUTCDay() : this._d.getDay();
3170        if (input != null) {
3171            input = parseWeekday(input, this.localeData());
3172            return this.add(input - day, 'd');
3173        } else {
3174            return day;
3175        }
3176    }
3177
3178    function getSetLocaleDayOfWeek (input) {
3179        if (!this.isValid()) {
3180            return input != null ? this : NaN;
3181        }
3182        var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;
3183        return input == null ? weekday : this.add(input - weekday, 'd');
3184    }
3185
3186    function getSetISODayOfWeek (input) {
3187        if (!this.isValid()) {
3188            return input != null ? this : NaN;
3189        }
3190
3191        // behaves the same as moment#day except
3192        // as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
3193        // as a setter, sunday should belong to the previous week.
3194
3195        if (input != null) {
3196            var weekday = parseIsoWeekday(input, this.localeData());
3197            return this.day(this.day() % 7 ? weekday : weekday - 7);
3198        } else {
3199            return this.day() || 7;
3200        }
3201    }
3202
3203    var defaultWeekdaysRegex = matchWord;
3204    function weekdaysRegex (isStrict) {
3205        if (this._weekdaysParseExact) {
3206            if (!hasOwnProp(this, '_weekdaysRegex')) {
3207                computeWeekdaysParse.call(this);
3208            }
3209            if (isStrict) {
3210                return this._weekdaysStrictRegex;
3211            } else {
3212                return this._weekdaysRegex;
3213            }
3214        } else {
3215            if (!hasOwnProp(this, '_weekdaysRegex')) {
3216                this._weekdaysRegex = defaultWeekdaysRegex;
3217            }
3218            return this._weekdaysStrictRegex && isStrict ?
3219                this._weekdaysStrictRegex : this._weekdaysRegex;
3220        }
3221    }
3222
3223    var defaultWeekdaysShortRegex = matchWord;
3224    function weekdaysShortRegex (isStrict) {
3225        if (this._weekdaysParseExact) {
3226            if (!hasOwnProp(this, '_weekdaysRegex')) {
3227                computeWeekdaysParse.call(this);
3228            }
3229            if (isStrict) {
3230                return this._weekdaysShortStrictRegex;
3231            } else {
3232                return this._weekdaysShortRegex;
3233            }
3234        } else {
3235            if (!hasOwnProp(this, '_weekdaysShortRegex')) {
3236                this._weekdaysShortRegex = defaultWeekdaysShortRegex;
3237            }
3238            return this._weekdaysShortStrictRegex && isStrict ?
3239                this._weekdaysShortStrictRegex : this._weekdaysShortRegex;
3240        }
3241    }
3242
3243    var defaultWeekdaysMinRegex = matchWord;
3244    function weekdaysMinRegex (isStrict) {
3245        if (this._weekdaysParseExact) {
3246            if (!hasOwnProp(this, '_weekdaysRegex')) {
3247                computeWeekdaysParse.call(this);
3248            }
3249            if (isStrict) {
3250                return this._weekdaysMinStrictRegex;
3251            } else {
3252                return this._weekdaysMinRegex;
3253            }
3254        } else {
3255            if (!hasOwnProp(this, '_weekdaysMinRegex')) {
3256                this._weekdaysMinRegex = defaultWeekdaysMinRegex;
3257            }
3258            return this._weekdaysMinStrictRegex && isStrict ?
3259                this._weekdaysMinStrictRegex : this._weekdaysMinRegex;
3260        }
3261    }
3262
3263
3264    function computeWeekdaysParse () {
3265        function cmpLenRev(a, b) {
3266            return b.length - a.length;
3267        }
3268
3269        var minPieces = [], shortPieces = [], longPieces = [], mixedPieces = [],
3270            i, mom, minp, shortp, longp;
3271        for (i = 0; i < 7; i++) {
3272            // make the regex if we don't have it already
3273            mom = createUTC([2000, 1]).day(i);
3274            minp = this.weekdaysMin(mom, '');
3275            shortp = this.weekdaysShort(mom, '');
3276            longp = this.weekdays(mom, '');
3277            minPieces.push(minp);
3278            shortPieces.push(shortp);
3279            longPieces.push(longp);
3280            mixedPieces.push(minp);
3281            mixedPieces.push(shortp);
3282            mixedPieces.push(longp);
3283        }
3284        // Sorting makes sure if one weekday (or abbr) is a prefix of another it
3285        // will match the longer piece.
3286        minPieces.sort(cmpLenRev);
3287        shortPieces.sort(cmpLenRev);
3288        longPieces.sort(cmpLenRev);
3289        mixedPieces.sort(cmpLenRev);
3290        for (i = 0; i < 7; i++) {
3291            shortPieces[i] = regexEscape(shortPieces[i]);
3292            longPieces[i] = regexEscape(longPieces[i]);
3293            mixedPieces[i] = regexEscape(mixedPieces[i]);
3294        }
3295
3296        this._weekdaysRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
3297        this._weekdaysShortRegex = this._weekdaysRegex;
3298        this._weekdaysMinRegex = this._weekdaysRegex;
3299
3300        this._weekdaysStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
3301        this._weekdaysShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
3302        this._weekdaysMinStrictRegex = new RegExp('^(' + minPieces.join('|') + ')', 'i');
3303    }
3304
3305    // FORMATTING
3306
3307    function hFormat() {
3308        return this.hours() % 12 || 12;
3309    }
3310
3311    function kFormat() {
3312        return this.hours() || 24;
3313    }
3314
3315    addFormatToken('H', ['HH', 2], 0, 'hour');
3316    addFormatToken('h', ['hh', 2], 0, hFormat);
3317    addFormatToken('k', ['kk', 2], 0, kFormat);
3318
3319    addFormatToken('hmm', 0, 0, function () {
3320        return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2);
3321    });
3322
3323    addFormatToken('hmmss', 0, 0, function () {
3324        return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2) +
3325            zeroFill(this.seconds(), 2);
3326    });
3327
3328    addFormatToken('Hmm', 0, 0, function () {
3329        return '' + this.hours() + zeroFill(this.minutes(), 2);
3330    });
3331
3332    addFormatToken('Hmmss', 0, 0, function () {
3333        return '' + this.hours() + zeroFill(this.minutes(), 2) +
3334            zeroFill(this.seconds(), 2);
3335    });
3336
3337    function meridiem (token, lowercase) {
3338        addFormatToken(token, 0, 0, function () {
3339            return this.localeData().meridiem(this.hours(), this.minutes(), lowercase);
3340        });
3341    }
3342
3343    meridiem('a', true);
3344    meridiem('A', false);
3345
3346    // ALIASES
3347
3348    addUnitAlias('hour', 'h');
3349
3350    // PRIORITY
3351    addUnitPriority('hour', 13);
3352
3353    // PARSING
3354
3355    function matchMeridiem (isStrict, locale) {
3356        return locale._meridiemParse;
3357    }
3358
3359    addRegexToken('a',  matchMeridiem);
3360    addRegexToken('A',  matchMeridiem);
3361    addRegexToken('H',  match1to2);
3362    addRegexToken('h',  match1to2);
3363    addRegexToken('k',  match1to2);
3364    addRegexToken('HH', match1to2, match2);
3365    addRegexToken('hh', match1to2, match2);
3366    addRegexToken('kk', match1to2, match2);
3367
3368    addRegexToken('hmm', match3to4);
3369    addRegexToken('hmmss', match5to6);
3370    addRegexToken('Hmm', match3to4);
3371    addRegexToken('Hmmss', match5to6);
3372
3373    addParseToken(['H', 'HH'], HOUR);
3374    addParseToken(['k', 'kk'], function (input, array, config) {
3375        var kInput = toInt(input);
3376        array[HOUR] = kInput === 24 ? 0 : kInput;
3377    });
3378    addParseToken(['a', 'A'], function (input, array, config) {
3379        config._isPm = config._locale.isPM(input);
3380        config._meridiem = input;
3381    });
3382    addParseToken(['h', 'hh'], function (input, array, config) {
3383        array[HOUR] = toInt(input);
3384        getParsingFlags(config).bigHour = true;
3385    });
3386    addParseToken('hmm', function (input, array, config) {
3387        var pos = input.length - 2;
3388        array[HOUR] = toInt(input.substr(0, pos));
3389        array[MINUTE] = toInt(input.substr(pos));
3390        getParsingFlags(config).bigHour = true;
3391    });
3392    addParseToken('hmmss', function (input, array, config) {
3393        var pos1 = input.length - 4;
3394        var pos2 = input.length - 2;
3395        array[HOUR] = toInt(input.substr(0, pos1));
3396        array[MINUTE] = toInt(input.substr(pos1, 2));
3397        array[SECOND] = toInt(input
vendor: 14,721 bytes, lines 3397-3811
3397.substr(pos2));
3398        getParsingFlags(config).bigHour = true;
3399    });
3400    addParseToken('Hmm', function (input, array, config) {
3401        var pos = input.length - 2;
3402        array[HOUR] = toInt(input.substr(0, pos));
3403        array[MINUTE] = toInt(input.substr(pos));
3404    });
3405    addParseToken('Hmmss', function (input, array, config) {
3406        var pos1 = input.length - 4;
3407        var pos2 = input.length - 2;
3408        array[HOUR] = toInt(input.substr(0, pos1));
3409        array[MINUTE] = toInt(input.substr(pos1, 2));
3410        array[SECOND] = toInt(input.substr(pos2));
3411    });
3412
3413    // LOCALES
3414
3415    function localeIsPM (input) {
3416        // IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
3417        // Using charAt should be more compatible.
3418        return ((input + '').toLowerCase().charAt(0) === 'p');
3419    }
3420
3421    var defaultLocaleMeridiemParse = /[ap]\.?m?\.?/i;
3422    function localeMeridiem (hours, minutes, isLower) {
3423        if (hours > 11) {
3424            return isLower ? 'pm' : 'PM';
3425        } else {
3426            return isLower ? 'am' : 'AM';
3427        }
3428    }
3429
3430
3431    // MOMENTS
3432
3433    // Setting the hour should keep the time, because the user explicitly
3434    // specified which hour they want. So trying to maintain the same hour (in
3435    // a new timezone) makes sense. Adding/subtracting hours does not follow
3436    // this rule.
3437    var getSetHour = makeGetSet('Hours', true);
3438
3439    var baseConfig = {
3440        calendar: defaultCalendar,
3441        longDateFormat: defaultLongDateFormat,
3442        invalidDate: defaultInvalidDate,
3443        ordinal: defaultOrdinal,
3444        dayOfMonthOrdinalParse: defaultDayOfMonthOrdinalParse,
3445        relativeTime: defaultRelativeTime,
3446
3447        months: defaultLocaleMonths,
3448        monthsShort: defaultLocaleMonthsShort,
3449
3450        week: defaultLocaleWeek,
3451
3452        weekdays: defaultLocaleWeekdays,
3453        weekdaysMin: defaultLocaleWeekdaysMin,
3454        weekdaysShort: defaultLocaleWeekdaysShort,
3455
3456        meridiemParse: defaultLocaleMeridiemParse
3457    };
3458
3459    // internal storage for locale config files
3460    var locales = {};
3461    var localeFamilies = {};
3462    var globalLocale;
3463
3464    function normalizeLocale(key) {
3465        return key ? key.toLowerCase().replace('_', '-') : key;
3466    }
3467
3468    // pick the locale from the array
3469    // try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each
3470    // substring from most specific to least, but move to the next array item if it's a more specific variant than the current root
3471    function chooseLocale(names) {
3472        var i = 0, j, next, locale, split;
3473
3474        while (i < names.length) {
3475            split = normalizeLocale(names[i]).split('-');
3476            j = split.length;
3477            next = normalizeLocale(names[i + 1]);
3478            next = next ? next.split('-') : null;
3479            while (j > 0) {
3480                locale = loadLocale(split.slice(0, j).join('-'));
3481                if (locale) {
3482                    return locale;
3483                }
3484                if (next && next.length >= j && compareArrays(split, next, true) >= j - 1) {
3485                    //the next array item is better than a shallower substring of this one
3486                    break;
3487                }
3488                j--;
3489            }
3490            i++;
3491        }
3492        return globalLocale;
3493    }
3494
3495    function loadLocale(name) {
3496        var oldLocale = null;
3497        // TODO: Find a better way to register and load all the locales in Node
3498        if (!locales[name] && (typeof module !== 'undefined') &&
3499                module && module.exports) {
3500            try {
3501                oldLocale = globalLocale._abbr;
3502                var aliasedRequire = require;
3503                aliasedRequire('./locale/' + name);
3504                getSetGlobalLocale(oldLocale);
3505            } catch (e) {}
3506        }
3507        return locales[name];
3508    }
3509
3510    // This function will load locale and then set the global locale.  If
3511    // no arguments are passed in, it will simply return the current global
3512    // locale key.
3513    function getSetGlobalLocale (key, values) {
3514        var data;
3515        if (key) {
3516            if (isUndefined(values)) {
3517                data = getLocale(key);
3518            }
3519            else {
3520                data = defineLocale(key, values);
3521            }
3522
3523            if (data) {
3524                // moment.duration._locale = moment._locale = data;
3525                globalLocale = data;
3526            }
3527            else {
3528                if ((typeof console !==  'undefined') && console.warn) {
3529                    //warn user if arguments are passed but the locale could not be set
3530                    console.warn('Locale ' + key +  ' not found. Did you forget to load it?');
3531                }
3532            }
3533        }
3534
3535        return globalLocale._abbr;
3536    }
3537
3538    function defineLocale (name, config) {
3539        if (config !== null) {
3540            var locale, parentConfig = baseConfig;
3541            config.abbr = name;
3542            if (locales[name] != null) {
3543                deprecateSimple('defineLocaleOverride',
3544                        'use moment.updateLocale(localeName, config) to change ' +
3545                        'an existing locale. moment.defineLocale(localeName, ' +
3546                        'config) should only be used for creating a new locale ' +
3547                        'See http://momentjs.com/guides/#/warnings/define-locale/ for more info.');
3548                parentConfig = locales[name]._config;
3549            } else if (config.parentLocale != null) {
3550                if (locales[config.parentLocale] != null) {
3551                    parentConfig = locales[config.parentLocale]._config;
3552                } else {
3553                    locale = loadLocale(config.parentLocale);
3554                    if (locale != null) {
3555                        parentConfig = locale._config;
3556                    } else {
3557                        if (!localeFamilies[config.parentLocale]) {
3558                            localeFamilies[config.parentLocale] = [];
3559                        }
3560                        localeFamilies[config.parentLocale].push({
3561                            name: name,
3562                            config: config
3563                        });
3564                        return null;
3565                    }
3566                }
3567            }
3568            locales[name] = new Locale(mergeConfigs(parentConfig, config));
3569
3570            if (localeFamilies[name]) {
3571                localeFamilies[name].forEach(function (x) {
3572                    defineLocale(x.name, x.config);
3573                });
3574            }
3575
3576            // backwards compat for now: also set the locale
3577            // make sure we set the locale AFTER all child locales have been
3578            // created, so we won't end up with the child locale set.
3579            getSetGlobalLocale(name);
3580
3581
3582            return locales[name];
3583        } else {
3584            // useful for testing
3585            delete locales[name];
3586            return null;
3587        }
3588    }
3589
3590    function updateLocale(name, config) {
3591        if (config != null) {
3592            var locale, tmpLocale, parentConfig = baseConfig;
3593            // MERGE
3594            tmpLocale = loadLocale(name);
3595            if (tmpLocale != null) {
3596                parentConfig = tmpLocale._config;
3597            }
3598            config = mergeConfigs(parentConfig, config);
3599            locale = new Locale(config);
3600            locale.parentLocale = locales[name];
3601            locales[name] = locale;
3602
3603            // backwards compat for now: also set the locale
3604            getSetGlobalLocale(name);
3605        } else {
3606            // pass null for config to unupdate, useful for tests
3607            if (locales[name] != null) {
3608                if (locales[name].parentLocale != null) {
3609                    locales[name] = locales[name].parentLocale;
3610                } else if (locales[name] != null) {
3611                    delete locales[name];
3612                }
3613            }
3614        }
3615        return locales[name];
3616    }
3617
3618    // returns locale data
3619    function getLocale (key) {
3620        var locale;
3621
3622        if (key && key._locale && key._locale._abbr) {
3623            key = key._locale._abbr;
3624        }
3625
3626        if (!key) {
3627            return globalLocale;
3628        }
3629
3630        if (!isArray(key)) {
3631            //short-circuit everything else
3632            locale = loadLocale(key);
3633            if (locale) {
3634                return locale;
3635            }
3636            key = [key];
3637        }
3638
3639        return chooseLocale(key);
3640    }
3641
3642    function listLocales() {
3643        return keys(locales);
3644    }
3645
3646    function checkOverflow (m) {
3647        var overflow;
3648        var a = m._a;
3649
3650        if (a && getParsingFlags(m).overflow === -2) {
3651            overflow =
3652                a[MONTH]       < 0 || a[MONTH]       > 11  ? MONTH :
3653                a[DATE]        < 1 || a[DATE]        > daysInMonth(a[YEAR], a[MONTH]) ? DATE :
3654                a[HOUR]        < 0 || a[HOUR]        > 24 || (a[HOUR] === 24 && (a[MINUTE] !== 0 || a[SECOND] !== 0 || a[MILLISECOND] !== 0)) ? HOUR :
3655                a[MINUTE]      < 0 || a[MINUTE]      > 59  ? MINUTE :
3656                a[SECOND]      < 0 || a[SECOND]      > 59  ? SECOND :
3657                a[MILLISECOND] < 0 || a[MILLISECOND] > 999 ? MILLISECOND :
3658                -1;
3659
3660            if (getParsingFlags(m)._overflowDayOfYear && (overflow < YEAR || overflow > DATE)) {
3661                overflow = DATE;
3662            }
3663            if (getParsingFlags(m)._overflowWeeks && overflow === -1) {
3664                overflow = WEEK;
3665            }
3666            if (getParsingFlags(m)._overflowWeekday && overflow === -1) {
3667                overflow = WEEKDAY;
3668            }
3669
3670            getParsingFlags(m).overflow = overflow;
3671        }
3672
3673        return m;
3674    }
3675
3676    // Pick the first defined of two or three arguments.
3677    function defaults(a, b, c) {
3678        if (a != null) {
3679            return a;
3680        }
3681        if (b != null) {
3682            return b;
3683        }
3684        return c;
3685    }
3686
3687    function currentDateArray(config) {
3688        // hooks is actually the exported moment object
3689        var nowValue = new Date(hooks.now());
3690        if (config._useUTC) {
3691            return [nowValue.getUTCFullYear(), nowValue.getUTCMonth(), nowValue.getUTCDate()];
3692        }
3693        return [nowValue.getFullYear(), nowValue.getMonth(), nowValue.getDate()];
3694    }
3695
3696    // convert an array to a date.
3697    // the array should mirror the parameters below
3698    // note: all values past the year are optional and will default to the lowest possible value.
3699    // [year, month, day , hour, minute, second, millisecond]
3700    function configFromArray (config) {
3701        var i, date, input = [], currentDate, expectedWeekday, yearToUse;
3702
3703        if (config._d) {
3704            return;
3705        }
3706
3707        currentDate = currentDateArray(config);
3708
3709        //compute day of the year from weeks and weekdays
3710        if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {
3711            dayOfYearFromWeekInfo(config);
3712        }
3713
3714        //if the day of the year is set, figure out what it is
3715        if (config._dayOfYear != null) {
3716            yearToUse = defaults(config._a[YEAR], currentDate[YEAR]);
3717
3718            if (config._dayOfYear > daysInYear(yearToUse) || config._dayOfYear === 0) {
3719                getParsingFlags(config)._overflowDayOfYear = true;
3720            }
3721
3722            date = createUTCDate(yearToUse, 0, config._dayOfYear);
3723            config._a[MONTH] = date.getUTCMonth();
3724            config._a[DATE] = date.getUTCDate();
3725        }
3726
3727        // Default to current date.
3728        // * if no year, month, day of month are given, default to today
3729        // * if day of month is given, default month and year
3730        // * if month is given, default only year
3731        // * if year is given, don't default anything
3732        for (i = 0; i < 3 && config._a[i] == null; ++i) {
3733            config._a[i] = input[i] = currentDate[i];
3734        }
3735
3736        // Zero out whatever was not defaulted, including time
3737        for (; i < 7; i++) {
3738            config._a[i] = input[i] = (config._a[i] == null) ? (i === 2 ? 1 : 0) : config._a[i];
3739        }
3740
3741        // Check for 24:00:00.000
3742        if (config._a[HOUR] === 24 &&
3743                config._a[MINUTE] === 0 &&
3744                config._a[SECOND] === 0 &&
3745                config._a[MILLISECOND] === 0) {
3746            config._nextDay = true;
3747            config._a[HOUR] = 0;
3748        }
3749
3750        config._d = (config._useUTC ? createUTCDate : createDate).apply(null, input);
3751        expectedWeekday = config._useUTC ? config._d.getUTCDay() : config._d.getDay();
3752
3753        // Apply timezone offset from input. The actual utcOffset can be changed
3754        // with parseZone.
3755        if (config._tzm != null) {
3756            config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
3757        }
3758
3759        if (config._nextDay) {
3760            config._a[HOUR] = 24;
3761        }
3762
3763        // check for mismatching day of week
3764        if (config._w && typeof config._w.d !== 'undefined' && config._w.d !== expectedWeekday) {
3765            getParsingFlags(config).weekdayMismatch = true;
3766        }
3767    }
3768
3769    function dayOfYearFromWeekInfo(config) {
3770        var w, weekYear, week, weekday, dow, doy, temp, weekdayOverflow;
3771
3772        w = config._w;
3773        if (w.GG != null || w.W != null || w.E != null) {
3774            dow = 1;
3775            doy = 4;
3776
3777            // TODO: We need to take the current isoWeekYear, but that depends on
3778            // how we interpret now (local, utc, fixed offset). So create
3779            // a now version of current config (take local/utc/offset flags, and
3780            // create now).
3781            weekYear = defaults(w.GG, config._a[YEAR], weekOfYear(createLocal(), 1, 4).year);
3782            week = defaults(w.W, 1);
3783            weekday = defaults(w.E, 1);
3784            if (weekday < 1 || weekday > 7) {
3785                weekdayOverflow = true;
3786            }
3787        } else {
3788            dow = config._locale._week.dow;
3789            doy = config._locale._week.doy;
3790
3791            var curWeek = weekOfYear(createLocal(), dow, doy);
3792
3793            weekYear = defaults(w.gg, config._a[YEAR], curWeek.year);
3794
3795            // Default to current week.
3796            week = defaults(w.w, curWeek.week);
3797
3798            if (w.d != null) {
3799                // weekday -- low day numbers are considered next week
3800                weekday = w.d;
3801                if (weekday < 0 || weekday > 6) {
3802                    weekdayOverflow = true;
3803                }
3804            } else if (w.e != null) {
3805                // local weekday -- counting starts from begining of week
3806                weekday = w.e + dow;
3807                if (w.e < 0 || w.e > 6) {
3808                    weekdayOverflow = true;
3809                }
3810            } else {
3811                // default to begi
vendor: 19,665 bytes, lines 3811-4405
3811ning of week
3812                weekday = dow;
3813            }
3814        }
3815        if (week < 1 || week > weeksInYear(weekYear, dow, doy)) {
3816            getParsingFlags(config)._overflowWeeks = true;
3817        } else if (weekdayOverflow != null) {
3818            getParsingFlags(config)._overflowWeekday = true;
3819        } else {
3820            temp = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy);
3821            config._a[YEAR] = temp.year;
3822            config._dayOfYear = temp.dayOfYear;
3823        }
3824    }
3825
3826    // iso 8601 regex
3827    // 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
3828    var extendedIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})-(?:\d\d-\d\d|W\d\d-\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?::\d\d(?::\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;
3829    var basicIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})(?:\d\d\d\d|W\d\d\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?:\d\d(?:\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;
3830
3831    var tzRegex = /Z|[+-]\d\d(?::?\d\d)?/;
3832
3833    var isoDates = [
3834        ['YYYYYY-MM-DD', /[+-]\d{6}-\d\d-\d\d/],
3835        ['YYYY-MM-DD', /\d{4}-\d\d-\d\d/],
3836        ['GGGG-[W]WW-E', /\d{4}-W\d\d-\d/],
3837        ['GGGG-[W]WW', /\d{4}-W\d\d/, false],
3838        ['YYYY-DDD', /\d{4}-\d{3}/],
3839        ['YYYY-MM', /\d{4}-\d\d/, false],
3840        ['YYYYYYMMDD', /[+-]\d{10}/],
3841        ['YYYYMMDD', /\d{8}/],
3842        // YYYYMM is NOT allowed by the standard
3843        ['GGGG[W]WWE', /\d{4}W\d{3}/],
3844        ['GGGG[W]WW', /\d{4}W\d{2}/, false],
3845        ['YYYYDDD', /\d{7}/]
3846    ];
3847
3848    // iso time formats and regexes
3849    var isoTimes = [
3850        ['HH:mm:ss.SSSS', /\d\d:\d\d:\d\d\.\d+/],
3851        ['HH:mm:ss,SSSS', /\d\d:\d\d:\d\d,\d+/],
3852        ['HH:mm:ss', /\d\d:\d\d:\d\d/],
3853        ['HH:mm', /\d\d:\d\d/],
3854        ['HHmmss.SSSS', /\d\d\d\d\d\d\.\d+/],
3855        ['HHmmss,SSSS', /\d\d\d\d\d\d,\d+/],
3856        ['HHmmss', /\d\d\d\d\d\d/],
3857        ['HHmm', /\d\d\d\d/],
3858        ['HH', /\d\d/]
3859    ];
3860
3861    var aspNetJsonRegex = /^\/?Date\((\-?\d+)/i;
3862
3863    // date from iso format
3864    function configFromISO(config) {
3865        var i, l,
3866            string = config._i,
3867            match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),
3868            allowTime, dateFormat, timeFormat, tzFormat;
3869
3870        if (match) {
3871            getParsingFlags(config).iso = true;
3872
3873            for (i = 0, l = isoDates.length; i < l; i++) {
3874                if (isoDates[i][1].exec(match[1])) {
3875                    dateFormat = isoDates[i][0];
3876                    allowTime = isoDates[i][2] !== false;
3877                    break;
3878                }
3879            }
3880            if (dateFormat == null) {
3881                config._isValid = false;
3882                return;
3883            }
3884            if (match[3]) {
3885                for (i = 0, l = isoTimes.length; i < l; i++) {
3886                    if (isoTimes[i][1].exec(match[3])) {
3887                        // match[2] should be 'T' or space
3888                        timeFormat = (match[2] || ' ') + isoTimes[i][0];
3889                        break;
3890                    }
3891                }
3892                if (timeFormat == null) {
3893                    config._isValid = false;
3894                    return;
3895                }
3896            }
3897            if (!allowTime && timeFormat != null) {
3898                config._isValid = false;
3899                return;
3900            }
3901            if (match[4]) {
3902                if (tzRegex.exec(match[4])) {
3903                    tzFormat = 'Z';
3904                } else {
3905                    config._isValid = false;
3906                    return;
3907                }
3908            }
3909            config._f = dateFormat + (timeFormat || '') + (tzFormat || '');
3910            configFromStringAndFormat(config);
3911        } else {
3912            config._isValid = false;
3913        }
3914    }
3915
3916    // RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3
3917    var rfc2822 = /^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\s)?(\d{1,2})\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(\d{2,4})\s(\d\d):(\d\d)(?::(\d\d))?\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|([+-]\d{4}))$/;
3918
3919    function extractFromRFC2822Strings(yearStr, monthStr, dayStr, hourStr, minuteStr, secondStr) {
3920        var result = [
3921            untruncateYear(yearStr),
3922            defaultLocaleMonthsShort.indexOf(monthStr),
3923            parseInt(dayStr, 10),
3924            parseInt(hourStr, 10),
3925            parseInt(minuteStr, 10)
3926        ];
3927
3928        if (secondStr) {
3929            result.push(parseInt(secondStr, 10));
3930        }
3931
3932        return result;
3933    }
3934
3935    function untruncateYear(yearStr) {
3936        var year = parseInt(yearStr, 10);
3937        if (year <= 49) {
3938            return 2000 + year;
3939        } else if (year <= 999) {
3940            return 1900 + year;
3941        }
3942        return year;
3943    }
3944
3945    function preprocessRFC2822(s) {
3946        // Remove comments and folding whitespace and replace multiple-spaces with a single space
3947        return s.replace(/\([^)]*\)|[\n\t]/g, ' ').replace(/(\s\s+)/g, ' ').replace(/^\s\s*/, '').replace(/\s\s*$/, '');
3948    }
3949
3950    function checkWeekday(weekdayStr, parsedInput, config) {
3951        if (weekdayStr) {
3952            // TODO: Replace the vanilla JS Date object with an indepentent day-of-week check.
3953            var weekdayProvided = defaultLocaleWeekdaysShort.indexOf(weekdayStr),
3954                weekdayActual = new Date(parsedInput[0], parsedInput[1], parsedInput[2]).getDay();
3955            if (weekdayProvided !== weekdayActual) {
3956                getParsingFlags(config).weekdayMismatch = true;
3957                config._isValid = false;
3958                return false;
3959            }
3960        }
3961        return true;
3962    }
3963
3964    var obsOffsets = {
3965        UT: 0,
3966        GMT: 0,
3967        EDT: -4 * 60,
3968        EST: -5 * 60,
3969        CDT: -5 * 60,
3970        CST: -6 * 60,
3971        MDT: -6 * 60,
3972        MST: -7 * 60,
3973        PDT: -7 * 60,
3974        PST: -8 * 60
3975    };
3976
3977    function calculateOffset(obsOffset, militaryOffset, numOffset) {
3978        if (obsOffset) {
3979            return obsOffsets[obsOffset];
3980        } else if (militaryOffset) {
3981            // the only allowed military tz is Z
3982            return 0;
3983        } else {
3984            var hm = parseInt(numOffset, 10);
3985            var m = hm % 100, h = (hm - m) / 100;
3986            return h * 60 + m;
3987        }
3988    }
3989
3990    // date and time from ref 2822 format
3991    function configFromRFC2822(config) {
3992        var match = rfc2822.exec(preprocessRFC2822(config._i));
3993        if (match) {
3994            var parsedArray = extractFromRFC2822Strings(match[4], match[3], match[2], match[5], match[6], match[7]);
3995            if (!checkWeekday(match[1], parsedArray, config)) {
3996                return;
3997            }
3998
3999            config._a = parsedArray;
4000            config._tzm = calculateOffset(match[8], match[9], match[10]);
4001
4002            config._d = createUTCDate.apply(null, config._a);
4003            config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
4004
4005            getParsingFlags(config).rfc2822 = true;
4006        } else {
4007            config._isValid = false;
4008        }
4009    }
4010
4011    // date from iso format or fallback
4012    function configFromString(config) {
4013        var matched = aspNetJsonRegex.exec(config._i);
4014
4015        if (matched !== null) {
4016            config._d = new Date(+matched[1]);
4017            return;
4018        }
4019
4020        configFromISO(config);
4021        if (config._isValid === false) {
4022            delete config._isValid;
4023        } else {
4024            return;
4025        }
4026
4027        configFromRFC2822(config);
4028        if (config._isValid === false) {
4029            delete config._isValid;
4030        } else {
4031            return;
4032        }
4033
4034        // Final attempt, use Input Fallback
4035        hooks.createFromInputFallback(config);
4036    }
4037
4038    hooks.createFromInputFallback = deprecate(
4039        'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +
4040        'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +
4041        'discouraged and will be removed in an upcoming major release. Please refer to ' +
4042        'http://momentjs.com/guides/#/warnings/js-date/ for more info.',
4043        function (config) {
4044            config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
4045        }
4046    );
4047
4048    // constant that refers to the ISO standard
4049    hooks.ISO_8601 = function () {};
4050
4051    // constant that refers to the RFC 2822 form
4052    hooks.RFC_2822 = function () {};
4053
4054    // date from string and format string
4055    function configFromStringAndFormat(config) {
4056        // TODO: Move this to another part of the creation flow to prevent circular deps
4057        if (config._f === hooks.ISO_8601) {
4058            configFromISO(config);
4059            return;
4060        }
4061        if (config._f === hooks.RFC_2822) {
4062            configFromRFC2822(config);
4063            return;
4064        }
4065        config._a = [];
4066        getParsingFlags(config).empty = true;
4067
4068        // This array is used to make a Date, either with `new Date` or `Date.UTC`
4069        var string = '' + config._i,
4070            i, parsedInput, tokens, token, skipped,
4071            stringLength = string.length,
4072            totalParsedInputLength = 0;
4073
4074        tokens = expandFormat(config._f, config._locale).match(formattingTokens) || [];
4075
4076        for (i = 0; i < tokens.length; i++) {
4077            token = tokens[i];
4078            parsedInput = (string.match(getParseRegexForToken(token, config)) || [])[0];
4079            // console.log('token', token, 'parsedInput', parsedInput,
4080            //         'regex', getParseRegexForToken(token, config));
4081            if (parsedInput) {
4082                skipped = string.substr(0, string.indexOf(parsedInput));
4083                if (skipped.length > 0) {
4084                    getParsingFlags(config).unusedInput.push(skipped);
4085                }
4086                string = string.slice(string.indexOf(parsedInput) + parsedInput.length);
4087                totalParsedInputLength += parsedInput.length;
4088            }
4089            // don't parse if it's not a known token
4090            if (formatTokenFunctions[token]) {
4091                if (parsedInput) {
4092                    getParsingFlags(config).empty = false;
4093                }
4094                else {
4095                    getParsingFlags(config).unusedTokens.push(token);
4096                }
4097                addTimeToArrayFromToken(token, parsedInput, config);
4098            }
4099            else if (config._strict && !parsedInput) {
4100                getParsingFlags(config).unusedTokens.push(token);
4101            }
4102        }
4103
4104        // add remaining unparsed input length to the string
4105        getParsingFlags(config).charsLeftOver = stringLength - totalParsedInputLength;
4106        if (string.length > 0) {
4107            getParsingFlags(config).unusedInput.push(string);
4108        }
4109
4110        // clear _12h flag if hour is <= 12
4111        if (config._a[HOUR] <= 12 &&
4112            getParsingFlags(config).bigHour === true &&
4113            config._a[HOUR] > 0) {
4114            getParsingFlags(config).bigHour = undefined;
4115        }
4116
4117        getParsingFlags(config).parsedDateParts = config._a.slice(0);
4118        getParsingFlags(config).meridiem = config._meridiem;
4119        // handle meridiem
4120        config._a[HOUR] = meridiemFixWrap(config._locale, config._a[HOUR], config._meridiem);
4121
4122        configFromArray(config);
4123        checkOverflow(config);
4124    }
4125
4126
4127    function meridiemFixWrap (locale, hour, meridiem) {
4128        var isPm;
4129
4130        if (meridiem == null) {
4131            // nothing to do
4132            return hour;
4133        }
4134        if (locale.meridiemHour != null) {
4135            return locale.meridiemHour(hour, meridiem);
4136        } else if (locale.isPM != null) {
4137            // Fallback
4138            isPm = locale.isPM(meridiem);
4139            if (isPm && hour < 12) {
4140                hour += 12;
4141            }
4142            if (!isPm && hour === 12) {
4143                hour = 0;
4144            }
4145            return hour;
4146        } else {
4147            // this is not supposed to happen
4148            return hour;
4149        }
4150    }
4151
4152    // date from string and array of format strings
4153    function configFromStringAndArray(config) {
4154        var tempConfig,
4155            bestMoment,
4156
4157            scoreToBeat,
4158            i,
4159            currentScore;
4160
4161        if (config._f.length === 0) {
4162            getParsingFlags(config).invalidFormat = true;
4163            config._d = new Date(NaN);
4164            return;
4165        }
4166
4167        for (i = 0; i < config._f.length; i++) {
4168            currentScore = 0;
4169            tempConfig = copyConfig({}, config);
4170            if (config._useUTC != null) {
4171                tempConfig._useUTC = config._useUTC;
4172            }
4173            tempConfig._f = config._f[i];
4174            configFromStringAndFormat(tempConfig);
4175
4176            if (!isValid(tempConfig)) {
4177                continue;
4178            }
4179
4180            // if there is any input that was not parsed add a penalty for that format
4181            currentScore += getParsingFlags(tempConfig).charsLeftOver;
4182
4183            //or tokens
4184            currentScore += getParsingFlags(tempConfig).unusedTokens.length * 10;
4185
4186            getParsingFlags(tempConfig).score = currentScore;
4187
4188            if (scoreToBeat == null || currentScore < scoreToBeat) {
4189                scoreToBeat = currentScore;
4190                bestMoment = tempConfig;
4191            }
4192        }
4193
4194        extend(config, bestMoment || tempConfig);
4195    }
4196
4197    function configFromObject(config) {
4198        if (config._d) {
4199            return;
4200        }
4201
4202        var i = normalizeObjectUnits(config._i);
4203        config._a = map([i.year, i.month, i.day || i.date, i.hour, i.minute, i.second, i.millisecond], function (obj) {
4204            return obj && parseInt(obj, 10);
4205        });
4206
4207        configFromArray(config);
4208    }
4209
4210    function createFromConfig (config) {
4211        var res = new Moment(checkOverflow(prepareConfig(config)));
4212        if (res._nextDay) {
4213            // Adding is smart enough around DST
4214            res.add(1, 'd');
4215            res._nextDay = undefined;
4216        }
4217
4218        return res;
4219    }
4220
4221    function prepareConfig (config) {
4222        var input = config._i,
4223            format = config._f;
4224
4225        config._locale = config._locale || getLocale(config._l);
4226
4227        if (input === null || (format === undefined && input === '')) {
4228            return createInvalid({nullInput: true});
4229        }
4230
4231        if (typeof input === 'string') {
4232            config._i = input = config._locale.preparse(input);
4233        }
4234
4235        if (isMoment(input)) {
4236            return new Moment(checkOverflow(input));
4237        } else if (isDate(input)) {
4238            config._d = input;
4239        } else if (isArray(format)) {
4240            configFromStringAndArray(config);
4241        } else if (format) {
4242            configFromStringAndFormat(config);
4243        }  else {
4244            configFromInput(config);
4245        }
4246
4247        if (!isValid(config)) {
4248            config._d = null;
4249        }
4250
4251        return config;
4252    }
4253
4254    function configFromInput(config) {
4255        var input = config._i;
4256        if (isUndefined(input)) {
4257            config._d = new Date(hooks.now());
4258        } else if (isDate(input)) {
4259            config._d = new Date(input.valueOf());
4260        } else if (typeof input === 'string') {
4261            configFromString(config);
4262        } else if (isArray(input)) {
4263            config._a = map(input.slice(0), function (obj) {
4264                return parseInt(obj, 10);
4265            });
4266            configFromArray(config);
4267        } else if (isObject(input)) {
4268            configFromObject(config);
4269        } else if (isNumber(input)) {
4270            // from milliseconds
4271            config._d = new Date(input);
4272        } else {
4273            hooks.createFromInputFallback(config);
4274        }
4275    }
4276
4277    function createLocalOrUTC (input, format, locale, strict, isUTC) {
4278        var c = {};
4279
4280        if (locale === true || locale === false) {
4281            strict = locale;
4282            locale = undefined;
4283        }
4284
4285        if ((isObject(input) && isObjectEmpty(input)) ||
4286                (isArray(input) && input.length === 0)) {
4287            input = undefined;
4288        }
4289        // object construction must be done this way.
4290        // https://github.com/moment/moment/issues/1423
4291        c._isAMomentObject = true;
4292        c._useUTC = c._isUTC = isUTC;
4293        c._l = locale;
4294        c._i = input;
4295        c._f = format;
4296        c._strict = strict;
4297
4298        return createFromConfig(c);
4299    }
4300
4301    function createLocal (input, format, locale, strict) {
4302        return createLocalOrUTC(input, format, locale, strict, false);
4303    }
4304
4305    var prototypeMin = deprecate(
4306        'moment().min is deprecated, use moment.max instead. http://momentjs.com/guides/#/warnings/min-max/',
4307        function () {
4308            var other = createLocal.apply(null, arguments);
4309            if (this.isValid() && other.isValid()) {
4310                return other < this ? this : other;
4311            } else {
4312                return createInvalid();
4313            }
4314        }
4315    );
4316
4317    var prototypeMax = deprecate(
4318        'moment().max is deprecated, use moment.min instead. http://momentjs.com/guides/#/warnings/min-max/',
4319        function () {
4320            var other = createLocal.apply(null, arguments);
4321            if (this.isValid() && other.isValid()) {
4322                return other > this ? this : other;
4323            } else {
4324                return createInvalid();
4325            }
4326        }
4327    );
4328
4329    // Pick a moment m from moments so that m[fn](other) is true for all
4330    // other. This relies on the function fn to be transitive.
4331    //
4332    // moments should either be an array of moment objects or an array, whose
4333    // first element is an array of moment objects.
4334    function pickBy(fn, moments) {
4335        var res, i;
4336        if (moments.length === 1 && isArray(moments[0])) {
4337            moments = moments[0];
4338        }
4339        if (!moments.length) {
4340            return createLocal();
4341        }
4342        res = moments[0];
4343        for (i = 1; i < moments.length; ++i) {
4344            if (!moments[i].isValid() || moments[i][fn](res)) {
4345                res = moments[i];
4346            }
4347        }
4348        return res;
4349    }
4350
4351    // TODO: Use [].sort instead?
4352    function min () {
4353        var args = [].slice.call(arguments, 0);
4354
4355        return pickBy('isBefore', args);
4356    }
4357
4358    function max () {
4359        var args = [].slice.call(arguments, 0);
4360
4361        return pickBy('isAfter', args);
4362    }
4363
4364    var now = function () {
4365        return Date.now ? Date.now() : +(new Date());
4366    };
4367
4368    var ordering = ['year', 'quarter', 'month', 'week', 'day', 'hour', 'minute', 'second', 'millisecond'];
4369
4370    function isDurationValid(m) {
4371        for (var key in m) {
4372            if (!(indexOf.call(ordering, key) !== -1 && (m[key] == null || !isNaN(m[key])))) {
4373                return false;
4374            }
4375        }
4376
4377        var unitHasDecimal = false;
4378        for (var i = 0; i < ordering.length; ++i) {
4379            if (m[ordering[i]]) {
4380                if (unitHasDecimal) {
4381                    return false; // only allow non-integers for smallest unit
4382                }
4383                if (parseFloat(m[ordering[i]]) !== toInt(m[ordering[i]])) {
4384                    unitHasDecimal = true;
4385                }
4386            }
4387        }
4388
4389        return true;
4390    }
4391
4392    function isValid$1() {
4393        return this._isValid;
4394    }
4395
4396    function createInvalid$1() {
4397        return createDuration(NaN);
4398    }
4399
4400    function Duration (duration) {
4401        var normalizedInput = normalizeObjectUnits(duration),
4402            years = normalizedInput.year || 0,
4403            quarters = normalizedInput.quarter || 0,
4404            months = normalizedInput.month || 0,
4405            weeks = normalizedInput.week || 
vendor: 4,158 bytes, lines 4405-4532
44050,
4406            days = normalizedInput.day || 0,
4407            hours = normalizedInput.hour || 0,
4408            minutes = normalizedInput.minute || 0,
4409            seconds = normalizedInput.second || 0,
4410            milliseconds = normalizedInput.millisecond || 0;
4411
4412        this._isValid = isDurationValid(normalizedInput);
4413
4414        // representation for dateAddRemove
4415        this._milliseconds = +milliseconds +
4416            seconds * 1e3 + // 1000
4417            minutes * 6e4 + // 1000 * 60
4418            hours * 1000 * 60 * 60; //using 1000 * 60 * 60 instead of 36e5 to avoid floating point rounding errors https://github.com/moment/moment/issues/2978
4419        // Because of dateAddRemove treats 24 hours as different from a
4420        // day when working around DST, we need to store them separately
4421        this._days = +days +
4422            weeks * 7;
4423        // It is impossible to translate months into days without knowing
4424        // which months you are are talking about, so we have to store
4425        // it separately.
4426        this._months = +months +
4427            quarters * 3 +
4428            years * 12;
4429
4430        this._data = {};
4431
4432        this._locale = getLocale();
4433
4434        this._bubble();
4435    }
4436
4437    function isDuration (obj) {
4438        return obj instanceof Duration;
4439    }
4440
4441    function absRound (number) {
4442        if (number < 0) {
4443            return Math.round(-1 * number) * -1;
4444        } else {
4445            return Math.round(number);
4446        }
4447    }
4448
4449    // FORMATTING
4450
4451    function offset (token, separator) {
4452        addFormatToken(token, 0, 0, function () {
4453            var offset = this.utcOffset();
4454            var sign = '+';
4455            if (offset < 0) {
4456                offset = -offset;
4457                sign = '-';
4458            }
4459            return sign + zeroFill(~~(offset / 60), 2) + separator + zeroFill(~~(offset) % 60, 2);
4460        });
4461    }
4462
4463    offset('Z', ':');
4464    offset('ZZ', '');
4465
4466    // PARSING
4467
4468    addRegexToken('Z',  matchShortOffset);
4469    addRegexToken('ZZ', matchShortOffset);
4470    addParseToken(['Z', 'ZZ'], function (input, array, config) {
4471        config._useUTC = true;
4472        config._tzm = offsetFromString(matchShortOffset, input);
4473    });
4474
4475    // HELPERS
4476
4477    // timezone chunker
4478    // '+10:00' > ['10',  '00']
4479    // '-1530'  > ['-15', '30']
4480    var chunkOffset = /([\+\-]|\d\d)/gi;
4481
4482    function offsetFromString(matcher, string) {
4483        var matches = (string || '').match(matcher);
4484
4485        if (matches === null) {
4486            return null;
4487        }
4488
4489        var chunk   = matches[matches.length - 1] || [];
4490        var parts   = (chunk + '').match(chunkOffset) || ['-', 0, 0];
4491        var minutes = +(parts[1] * 60) + toInt(parts[2]);
4492
4493        return minutes === 0 ?
4494          0 :
4495          parts[0] === '+' ? minutes : -minutes;
4496    }
4497
4498    // Return a moment from input, that is local/utc/zone equivalent to model.
4499    function cloneWithOffset(input, model) {
4500        var res, diff;
4501        if (model._isUTC) {
4502            res = model.clone();
4503            diff = (isMoment(input) || isDate(input) ? input.valueOf() : createLocal(input).valueOf()) - res.valueOf();
4504            // Use low-level api, because this fn is low-level api.
4505            res._d.setTime(res._d.valueOf() + diff);
4506            hooks.updateOffset(res, false);
4507            return res;
4508        } else {
4509            return createLocal(input).local();
4510        }
4511    }
4512
4513    function getDateOffset (m) {
4514        // On Firefox.24 Date#getTimezoneOffset returns a floating point.
4515        // https://github.com/moment/moment/pull/1871
4516        return -Math.round(m._d.getTimezoneOffset() / 15) * 15;
4517    }
4518
4519    // HOOKS
4520
4521    // This function will be called whenever a moment is mutated.
4522    // It is intended to keep the offset in sync with the timezone.
4523    hooks.updateOffset = function () {};
4524
4525    // MOMENTS
4526
4527    // keepLocalTime = true means only change the timezone, without
4528    // affecting the local hour. So 5:31:26 +0300 --[utcOffset(2, true)]-->
4529    // 5:31:26 +0200 It is possible that 5:31:26 doesn't exist with offset
4530    // +0200, so we adjust the time as needed, to be valid.
4531    //
4532    // Keeping the time actually adds/subtracts (one hour)
vendor: 20,735 bytes, lines 4533-5139
4533    // from the actual represented time. That is why we call updateOffset
4534    // a second time. In case it wants us to change the offset again
4535    // _changeInProgress == true case, then we have to adjust, because
4536    // there is no such time in the given timezone.
4537    function getSetOffset (input, keepLocalTime, keepMinutes) {
4538        var offset = this._offset || 0,
4539            localAdjust;
4540        if (!this.isValid()) {
4541            return input != null ? this : NaN;
4542        }
4543        if (input != null) {
4544            if (typeof input === 'string') {
4545                input = offsetFromString(matchShortOffset, input);
4546                if (input === null) {
4547                    return this;
4548                }
4549            } else if (Math.abs(input) < 16 && !keepMinutes) {
4550                input = input * 60;
4551            }
4552            if (!this._isUTC && keepLocalTime) {
4553                localAdjust = getDateOffset(this);
4554            }
4555            this._offset = input;
4556            this._isUTC = true;
4557            if (localAdjust != null) {
4558                this.add(localAdjust, 'm');
4559            }
4560            if (offset !== input) {
4561                if (!keepLocalTime || this._changeInProgress) {
4562                    addSubtract(this, createDuration(input - offset, 'm'), 1, false);
4563                } else if (!this._changeInProgress) {
4564                    this._changeInProgress = true;
4565                    hooks.updateOffset(this, true);
4566                    this._changeInProgress = null;
4567                }
4568            }
4569            return this;
4570        } else {
4571            return this._isUTC ? offset : getDateOffset(this);
4572        }
4573    }
4574
4575    function getSetZone (input, keepLocalTime) {
4576        if (input != null) {
4577            if (typeof input !== 'string') {
4578                input = -input;
4579            }
4580
4581            this.utcOffset(input, keepLocalTime);
4582
4583            return this;
4584        } else {
4585            return -this.utcOffset();
4586        }
4587    }
4588
4589    function setOffsetToUTC (keepLocalTime) {
4590        return this.utcOffset(0, keepLocalTime);
4591    }
4592
4593    function setOffsetToLocal (keepLocalTime) {
4594        if (this._isUTC) {
4595            this.utcOffset(0, keepLocalTime);
4596            this._isUTC = false;
4597
4598            if (keepLocalTime) {
4599                this.subtract(getDateOffset(this), 'm');
4600            }
4601        }
4602        return this;
4603    }
4604
4605    function setOffsetToParsedOffset () {
4606        if (this._tzm != null) {
4607            this.utcOffset(this._tzm, false, true);
4608        } else if (typeof this._i === 'string') {
4609            var tZone = offsetFromString(matchOffset, this._i);
4610            if (tZone != null) {
4611                this.utcOffset(tZone);
4612            }
4613            else {
4614                this.utcOffset(0, true);
4615            }
4616        }
4617        return this;
4618    }
4619
4620    function hasAlignedHourOffset (input) {
4621        if (!this.isValid()) {
4622            return false;
4623        }
4624        input = input ? createLocal(input).utcOffset() : 0;
4625
4626        return (this.utcOffset() - input) % 60 === 0;
4627    }
4628
4629    function isDaylightSavingTime () {
4630        return (
4631            this.utcOffset() > this.clone().month(0).utcOffset() ||
4632            this.utcOffset() > this.clone().month(5).utcOffset()
4633        );
4634    }
4635
4636    function isDaylightSavingTimeShifted () {
4637        if (!isUndefined(this._isDSTShifted)) {
4638            return this._isDSTShifted;
4639        }
4640
4641        var c = {};
4642
4643        copyConfig(c, this);
4644        c = prepareConfig(c);
4645
4646        if (c._a) {
4647            var other = c._isUTC ? createUTC(c._a) : createLocal(c._a);
4648            this._isDSTShifted = this.isValid() &&
4649                compareArrays(c._a, other.toArray()) > 0;
4650        } else {
4651            this._isDSTShifted = false;
4652        }
4653
4654        return this._isDSTShifted;
4655    }
4656
4657    function isLocal () {
4658        return this.isValid() ? !this._isUTC : false;
4659    }
4660
4661    function isUtcOffset () {
4662        return this.isValid() ? this._isUTC : false;
4663    }
4664
4665    function isUtc () {
4666        return this.isValid() ? this._isUTC && this._offset === 0 : false;
4667    }
4668
4669    // ASP.NET json date format regex
4670    var aspNetRegex = /^(\-|\+)?(?:(\d*)[. ])?(\d+)\:(\d+)(?:\:(\d+)(\.\d*)?)?$/;
4671
4672    // from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html
4673    // somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere
4674    // and further modified to allow for strings containing both week and day
4675    var isoRegex = /^(-|\+)?P(?:([-+]?[0-9,.]*)Y)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)W)?(?:([-+]?[0-9,.]*)D)?(?:T(?:([-+]?[0-9,.]*)H)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)S)?)?$/;
4676
4677    function createDuration (input, key) {
4678        var duration = input,
4679            // matching against regexp is expensive, do it on demand
4680            match = null,
4681            sign,
4682            ret,
4683            diffRes;
4684
4685        if (isDuration(input)) {
4686            duration = {
4687                ms : input._milliseconds,
4688                d  : input._days,
4689                M  : input._months
4690            };
4691        } else if (isNumber(input)) {
4692            duration = {};
4693            if (key) {
4694                duration[key] = input;
4695            } else {
4696                duration.milliseconds = input;
4697            }
4698        } else if (!!(match = aspNetRegex.exec(input))) {
4699            sign = (match[1] === '-') ? -1 : 1;
4700            duration = {
4701                y  : 0,
4702                d  : toInt(match[DATE])                         * sign,
4703                h  : toInt(match[HOUR])                         * sign,
4704                m  : toInt(match[MINUTE])                       * sign,
4705                s  : toInt(match[SECOND])                       * sign,
4706                ms : toInt(absRound(match[MILLISECOND] * 1000)) * sign // the millisecond decimal point is included in the match
4707            };
4708        } else if (!!(match = isoRegex.exec(input))) {
4709            sign = (match[1] === '-') ? -1 : (match[1] === '+') ? 1 : 1;
4710            duration = {
4711                y : parseIso(match[2], sign),
4712                M : parseIso(match[3], sign),
4713                w : parseIso(match[4], sign),
4714                d : parseIso(match[5], sign),
4715                h : parseIso(match[6], sign),
4716                m : parseIso(match[7], sign),
4717                s : parseIso(match[8], sign)
4718            };
4719        } else if (duration == null) {// checks for null or undefined
4720            duration = {};
4721        } else if (typeof duration === 'object' && ('from' in duration || 'to' in duration)) {
4722            diffRes = momentsDifference(createLocal(duration.from), createLocal(duration.to));
4723
4724            duration = {};
4725            duration.ms = diffRes.milliseconds;
4726            duration.M = diffRes.months;
4727        }
4728
4729        ret = new Duration(duration);
4730
4731        if (isDuration(input) && hasOwnProp(input, '_locale')) {
4732            ret._locale = input._locale;
4733        }
4734
4735        return ret;
4736    }
4737
4738    createDuration.fn = Duration.prototype;
4739    createDuration.invalid = createInvalid$1;
4740
4741    function parseIso (inp, sign) {
4742        // We'd normally use ~~inp for this, but unfortunately it also
4743        // converts floats to ints.
4744        // inp may be undefined, so careful calling replace on it.
4745        var res = inp && parseFloat(inp.replace(',', '.'));
4746        // apply sign while we're at it
4747        return (isNaN(res) ? 0 : res) * sign;
4748    }
4749
4750    function positiveMomentsDifference(base, other) {
4751        var res = {milliseconds: 0, months: 0};
4752
4753        res.months = other.month() - base.month() +
4754            (other.year() - base.year()) * 12;
4755        if (base.clone().add(res.months, 'M').isAfter(other)) {
4756            --res.months;
4757        }
4758
4759        res.milliseconds = +other - +(base.clone().add(res.months, 'M'));
4760
4761        return res;
4762    }
4763
4764    function momentsDifference(base, other) {
4765        var res;
4766        if (!(base.isValid() && other.isValid())) {
4767            return {milliseconds: 0, months: 0};
4768        }
4769
4770        other = cloneWithOffset(other, base);
4771        if (base.isBefore(other)) {
4772            res = positiveMomentsDifference(base, other);
4773        } else {
4774            res = positiveMomentsDifference(other, base);
4775            res.milliseconds = -res.milliseconds;
4776            res.months = -res.months;
4777        }
4778
4779        return res;
4780    }
4781
4782    // TODO: remove 'name' arg after deprecation is removed
4783    function createAdder(direction, name) {
4784        return function (val, period) {
4785            var dur, tmp;
4786            //invert the arguments, but complain about it
4787            if (period !== null && !isNaN(+period)) {
4788                deprecateSimple(name, 'moment().' + name  + '(period, number) is deprecated. Please use moment().' + name + '(number, period). ' +
4789                'See http://momentjs.com/guides/#/warnings/add-inverted-param/ for more info.');
4790                tmp = val; val = period; period = tmp;
4791            }
4792
4793            val = typeof val === 'string' ? +val : val;
4794            dur = createDuration(val, period);
4795            addSubtract(this, dur, direction);
4796            return this;
4797        };
4798    }
4799
4800    function addSubtract (mom, duration, isAdding, updateOffset) {
4801        var milliseconds = duration._milliseconds,
4802            days = absRound(duration._days),
4803            months = absRound(duration._months);
4804
4805        if (!mom.isValid()) {
4806            // No op
4807            return;
4808        }
4809
4810        updateOffset = updateOffset == null ? true : updateOffset;
4811
4812        if (months) {
4813            setMonth(mom, get(mom, 'Month') + months * isAdding);
4814        }
4815        if (days) {
4816            set$1(mom, 'Date', get(mom, 'Date') + days * isAdding);
4817        }
4818        if (milliseconds) {
4819            mom._d.setTime(mom._d.valueOf() + milliseconds * isAdding);
4820        }
4821        if (updateOffset) {
4822            hooks.updateOffset(mom, days || months);
4823        }
4824    }
4825
4826    var add      = createAdder(1, 'add');
4827    var subtract = createAdder(-1, 'subtract');
4828
4829    function getCalendarFormat(myMoment, now) {
4830        var diff = myMoment.diff(now, 'days', true);
4831        return diff < -6 ? 'sameElse' :
4832                diff < -1 ? 'lastWeek' :
4833                diff < 0 ? 'lastDay' :
4834                diff < 1 ? 'sameDay' :
4835                diff < 2 ? 'nextDay' :
4836                diff < 7 ? 'nextWeek' : 'sameElse';
4837    }
4838
4839    function calendar$1 (time, formats) {
4840        // We want to compare the start of today, vs this.
4841        // Getting start-of-today depends on whether we're local/utc/offset or not.
4842        var now = time || createLocal(),
4843            sod = cloneWithOffset(now, this).startOf('day'),
4844            format = hooks.calendarFormat(this, sod) || 'sameElse';
4845
4846        var output = formats && (isFunction(formats[format]) ? formats[format].call(this, now) : formats[format]);
4847
4848        return this.format(output || this.localeData().calendar(format, this, createLocal(now)));
4849    }
4850
4851    function clone () {
4852        return new Moment(this);
4853    }
4854
4855    function isAfter (input, units) {
4856        var localInput = isMoment(input) ? input : createLocal(input);
4857        if (!(this.isValid() && localInput.isValid())) {
4858            return false;
4859        }
4860        units = normalizeUnits(!isUndefined(units) ? units : 'millisecond');
4861        if (units === 'millisecond') {
4862            return this.valueOf() > localInput.valueOf();
4863        } else {
4864            return localInput.valueOf() < this.clone().startOf(units).valueOf();
4865        }
4866    }
4867
4868    function isBefore (input, units) {
4869        var localInput = isMoment(input) ? input : createLocal(input);
4870        if (!(this.isValid() && localInput.isValid())) {
4871            return false;
4872        }
4873        units = normalizeUnits(!isUndefined(units) ? units : 'millisecond');
4874        if (units === 'millisecond') {
4875            return this.valueOf() < localInput.valueOf();
4876        } else {
4877            return this.clone().endOf(units).valueOf() < localInput.valueOf();
4878        }
4879    }
4880
4881    function isBetween (from, to, units, inclusivity) {
4882        inclusivity = inclusivity || '()';
4883        return (inclusivity[0] === '(' ? this.isAfter(from, units) : !this.isBefore(from, units)) &&
4884            (inclusivity[1] === ')' ? this.isBefore(to, units) : !this.isAfter(to, units));
4885    }
4886
4887    function isSame (input, units) {
4888        var localInput = isMoment(input) ? input : createLocal(input),
4889            inputMs;
4890        if (!(this.isValid() && localInput.isValid())) {
4891            return false;
4892        }
4893        units = normalizeUnits(units || 'millisecond');
4894        if (units === 'millisecond') {
4895            return this.valueOf() === localInput.valueOf();
4896        } else {
4897            inputMs = localInput.valueOf();
4898            return this.clone().startOf(units).valueOf() <= inputMs && inputMs <= this.clone().endOf(units).valueOf();
4899        }
4900    }
4901
4902    function isSameOrAfter (input, units) {
4903        return this.isSame(input, units) || this.isAfter(input,units);
4904    }
4905
4906    function isSameOrBefore (input, units) {
4907        return this.isSame(input, units) || this.isBefore(input,units);
4908    }
4909
4910    function diff (input, units, asFloat) {
4911        var that,
4912            zoneDelta,
4913            output;
4914
4915        if (!this.isValid()) {
4916            return NaN;
4917        }
4918
4919        that = cloneWithOffset(input, this);
4920
4921        if (!that.isValid()) {
4922            return NaN;
4923        }
4924
4925        zoneDelta = (that.utcOffset() - this.utcOffset()) * 6e4;
4926
4927        units = normalizeUnits(units);
4928
4929        switch (units) {
4930            case 'year': output = monthDiff(this, that) / 12; break;
4931            case 'month': output = monthDiff(this, that); break;
4932            case 'quarter': output = monthDiff(this, that) / 3; break;
4933            case 'second': output = (this - that) / 1e3; break; // 1000
4934            case 'minute': output = (this - that) / 6e4; break; // 1000 * 60
4935            case 'hour': output = (this - that) / 36e5; break; // 1000 * 60 * 60
4936            case 'day': output = (this - that - zoneDelta) / 864e5; break; // 1000 * 60 * 60 * 24, negate dst
4937            case 'week': output = (this - that - zoneDelta) / 6048e5; break; // 1000 * 60 * 60 * 24 * 7, negate dst
4938            default: output = this - that;
4939        }
4940
4941        return asFloat ? output : absFloor(output);
4942    }
4943
4944    function monthDiff (a, b) {
4945        // difference in months
4946        var wholeMonthDiff = ((b.year() - a.year()) * 12) + (b.month() - a.month()),
4947            // b is in (anchor - 1 month, anchor + 1 month)
4948            anchor = a.clone().add(wholeMonthDiff, 'months'),
4949            anchor2, adjust;
4950
4951        if (b - anchor < 0) {
4952            anchor2 = a.clone().add(wholeMonthDiff - 1, 'months');
4953            // linear across the month
4954            adjust = (b - anchor) / (anchor - anchor2);
4955        } else {
4956            anchor2 = a.clone().add(wholeMonthDiff + 1, 'months');
4957            // linear across the month
4958            adjust = (b - anchor) / (anchor2 - anchor);
4959        }
4960
4961        //check for negative zero, return zero if negative zero
4962        return -(wholeMonthDiff + adjust) || 0;
4963    }
4964
4965    hooks.defaultFormat = 'YYYY-MM-DDTHH:mm:ssZ';
4966    hooks.defaultFormatUtc = 'YYYY-MM-DDTHH:mm:ss[Z]';
4967
4968    function toString () {
4969        return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');
4970    }
4971
4972    function toISOString(keepOffset) {
4973        if (!this.isValid()) {
4974            return null;
4975        }
4976        var utc = keepOffset !== true;
4977        var m = utc ? this.clone().utc() : this;
4978        if (m.year() < 0 || m.year() > 9999) {
4979            return formatMoment(m, utc ? 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYYYY-MM-DD[T]HH:mm:ss.SSSZ');
4980        }
4981        if (isFunction(Date.prototype.toISOString)) {
4982            // native implementation is ~50x faster, use it when we can
4983            if (utc) {
4984                return this.toDate().toISOString();
4985            } else {
4986                return new Date(this.valueOf() + this.utcOffset() * 60 * 1000).toISOString().replace('Z', formatMoment(m, 'Z'));
4987            }
4988        }
4989        return formatMoment(m, utc ? 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYY-MM-DD[T]HH:mm:ss.SSSZ');
4990    }
4991
4992    /**
4993     * Return a human readable representation of a moment that can
4994     * also be evaluated to get a new moment which is the same
4995     *
4996     * @link https://nodejs.org/dist/latest/docs/api/util.html#util_custom_inspect_function_on_objects
4997     */
4998    function inspect () {
4999        if (!this.isValid()) {
5000            return 'moment.invalid(/* ' + this._i + ' */)';
5001        }
5002        var func = 'moment';
5003        var zone = '';
5004        if (!this.isLocal()) {
5005            func = this.utcOffset() === 0 ? 'moment.utc' : 'moment.parseZone';
5006            zone = 'Z';
5007        }
5008        var prefix = '[' + func + '("]';
5009        var year = (0 <= this.year() && this.year() <= 9999) ? 'YYYY' : 'YYYYYY';
5010        var datetime = '-MM-DD[T]HH:mm:ss.SSS';
5011        var suffix = zone + '[")]';
5012
5013        return this.format(prefix + year + datetime + suffix);
5014    }
5015
5016    function format (inputString) {
5017        if (!inputString) {
5018            inputString = this.isUtc() ? hooks.defaultFormatUtc : hooks.defaultFormat;
5019        }
5020        var output = formatMoment(this, inputString);
5021        return this.localeData().postformat(output);
5022    }
5023
5024    function from (time, withoutSuffix) {
5025        if (this.isValid() &&
5026                ((isMoment(time) && time.isValid()) ||
5027                 createLocal(time).isValid())) {
5028            return createDuration({to: this, from: time}).locale(this.locale()).humanize(!withoutSuffix);
5029        } else {
5030            return this.localeData().invalidDate();
5031        }
5032    }
5033
5034    function fromNow (withoutSuffix) {
5035        return this.from(createLocal(), withoutSuffix);
5036    }
5037
5038    function to (time, withoutSuffix) {
5039        if (this.isValid() &&
5040                ((isMoment(time) && time.isValid()) ||
5041                 createLocal(time).isValid())) {
5042            return createDuration({from: this, to: time}).locale(this.locale()).humanize(!withoutSuffix);
5043        } else {
5044            return this.localeData().invalidDate();
5045        }
5046    }
5047
5048    function toNow (withoutSuffix) {
5049        return this.to(createLocal(), withoutSuffix);
5050    }
5051
5052    // If passed a locale key, it will set the locale for this
5053    // instance.  Otherwise, it will return the locale configuration
5054    // variables for this instance.
5055    function locale (key) {
5056        var newLocaleData;
5057
5058        if (key === undefined) {
5059            return this._locale._abbr;
5060        } else {
5061            newLocaleData = getLocale(key);
5062            if (newLocaleData != null) {
5063                this._locale = newLocaleData;
5064            }
5065            return this;
5066        }
5067    }
5068
5069    var lang = deprecate(
5070        'moment().lang() is deprecated. Instead, use moment().localeData() to get the language configuration. Use moment().locale() to change languages.',
5071        function (key) {
5072            if (key === undefined) {
5073                return this.localeData();
5074            } else {
5075                return this.locale(key);
5076            }
5077        }
5078    );
5079
5080    function localeData () {
5081        return this._locale;
5082    }
5083
5084    function startOf (units) {
5085        units = normalizeUnits(units);
5086        // the following switch intentionally omits break keywords
5087        // to utilize falling through the cases.
5088        switch (units) {
5089            case 'year':
5090                this.month(0);
5091                /* falls through */
5092            case 'quarter':
5093            case 'month':
5094                this.date(1);
5095                /* falls through */
5096            case 'week':
5097            case 'isoWeek':
5098            case 'day':
5099            case 'date':
5100                this.hours(0);
5101                /* falls through */
5102            case 'hour':
5103                this.minutes(0);
5104                /* falls through */
5105            case 'minute':
5106                this.seconds(0);
5107                /* falls through */
5108            case 'second':
5109                this.milliseconds(0);
5110        }
5111
5112        // weeks are a special case
5113        if (units === 'week') {
5114            this.weekday(0);
5115        }
5116        if (units === 'isoWeek') {
5117            this.isoWeekday(1);
5118        }
5119
5120        // quarters are also special
5121        if (units === 'quarter') {
5122            this.month(Math.floor(this.month() / 3) * 3);
5123        }
5124
5125        return this;
5126    }
5127
5128    function endOf (units) {
5129        units = normalizeUnits(units);
5130        if (units === undefined || units === 'millisecond') {
5131            return this;
5132        }
5133
5134        // 'date' is an alias for 'day', so it should be considered as such.
5135        if (units === 'date') {
5136            units = 'day';
5137        }
5138
5139        return this.startOf(units).add(1, (units === 'isoWeek' ? 'week' : units)).subtract(1, 'ms')
vendor: 20,515 bytes, lines 5139-5845
5139;
5140    }
5141
5142    function valueOf () {
5143        return this._d.valueOf() - ((this._offset || 0) * 60000);
5144    }
5145
5146    function unix () {
5147        return Math.floor(this.valueOf() / 1000);
5148    }
5149
5150    function toDate () {
5151        return new Date(this.valueOf());
5152    }
5153
5154    function toArray () {
5155        var m = this;
5156        return [m.year(), m.month(), m.date(), m.hour(), m.minute(), m.second(), m.millisecond()];
5157    }
5158
5159    function toObject () {
5160        var m = this;
5161        return {
5162            years: m.year(),
5163            months: m.month(),
5164            date: m.date(),
5165            hours: m.hours(),
5166            minutes: m.minutes(),
5167            seconds: m.seconds(),
5168            milliseconds: m.milliseconds()
5169        };
5170    }
5171
5172    function toJSON () {
5173        // new Date(NaN).toJSON() === null
5174        return this.isValid() ? this.toISOString() : null;
5175    }
5176
5177    function isValid$2 () {
5178        return isValid(this);
5179    }
5180
5181    function parsingFlags () {
5182        return extend({}, getParsingFlags(this));
5183    }
5184
5185    function invalidAt () {
5186        return getParsingFlags(this).overflow;
5187    }
5188
5189    function creationData() {
5190        return {
5191            input: this._i,
5192            format: this._f,
5193            locale: this._locale,
5194            isUTC: this._isUTC,
5195            strict: this._strict
5196        };
5197    }
5198
5199    // FORMATTING
5200
5201    addFormatToken(0, ['gg', 2], 0, function () {
5202        return this.weekYear() % 100;
5203    });
5204
5205    addFormatToken(0, ['GG', 2], 0, function () {
5206        return this.isoWeekYear() % 100;
5207    });
5208
5209    function addWeekYearFormatToken (token, getter) {
5210        addFormatToken(0, [token, token.length], 0, getter);
5211    }
5212
5213    addWeekYearFormatToken('gggg',     'weekYear');
5214    addWeekYearFormatToken('ggggg',    'weekYear');
5215    addWeekYearFormatToken('GGGG',  'isoWeekYear');
5216    addWeekYearFormatToken('GGGGG', 'isoWeekYear');
5217
5218    // ALIASES
5219
5220    addUnitAlias('weekYear', 'gg');
5221    addUnitAlias('isoWeekYear', 'GG');
5222
5223    // PRIORITY
5224
5225    addUnitPriority('weekYear', 1);
5226    addUnitPriority('isoWeekYear', 1);
5227
5228
5229    // PARSING
5230
5231    addRegexToken('G',      matchSigned);
5232    addRegexToken('g',      matchSigned);
5233    addRegexToken('GG',     match1to2, match2);
5234    addRegexToken('gg',     match1to2, match2);
5235    addRegexToken('GGGG',   match1to4, match4);
5236    addRegexToken('gggg',   match1to4, match4);
5237    addRegexToken('GGGGG',  match1to6, match6);
5238    addRegexToken('ggggg',  match1to6, match6);
5239
5240    addWeekParseToken(['gggg', 'ggggg', 'GGGG', 'GGGGG'], function (input, week, config, token) {
5241        week[token.substr(0, 2)] = toInt(input);
5242    });
5243
5244    addWeekParseToken(['gg', 'GG'], function (input, week, config, token) {
5245        week[token] = hooks.parseTwoDigitYear(input);
5246    });
5247
5248    // MOMENTS
5249
5250    function getSetWeekYear (input) {
5251        return getSetWeekYearHelper.call(this,
5252                input,
5253                this.week(),
5254                this.weekday(),
5255                this.localeData()._week.dow,
5256                this.localeData()._week.doy);
5257    }
5258
5259    function getSetISOWeekYear (input) {
5260        return getSetWeekYearHelper.call(this,
5261                input, this.isoWeek(), this.isoWeekday(), 1, 4);
5262    }
5263
5264    function getISOWeeksInYear () {
5265        return weeksInYear(this.year(), 1, 4);
5266    }
5267
5268    function getWeeksInYear () {
5269        var weekInfo = this.localeData()._week;
5270        return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);
5271    }
5272
5273    function getSetWeekYearHelper(input, week, weekday, dow, doy) {
5274        var weeksTarget;
5275        if (input == null) {
5276            return weekOfYear(this, dow, doy).year;
5277        } else {
5278            weeksTarget = weeksInYear(input, dow, doy);
5279            if (week > weeksTarget) {
5280                week = weeksTarget;
5281            }
5282            return setWeekAll.call(this, input, week, weekday, dow, doy);
5283        }
5284    }
5285
5286    function setWeekAll(weekYear, week, weekday, dow, doy) {
5287        var dayOfYearData = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy),
5288            date = createUTCDate(dayOfYearData.year, 0, dayOfYearData.dayOfYear);
5289
5290        this.year(date.getUTCFullYear());
5291        this.month(date.getUTCMonth());
5292        this.date(date.getUTCDate());
5293        return this;
5294    }
5295
5296    // FORMATTING
5297
5298    addFormatToken('Q', 0, 'Qo', 'quarter');
5299
5300    // ALIASES
5301
5302    addUnitAlias('quarter', 'Q');
5303
5304    // PRIORITY
5305
5306    addUnitPriority('quarter', 7);
5307
5308    // PARSING
5309
5310    addRegexToken('Q', match1);
5311    addParseToken('Q', function (input, array) {
5312        array[MONTH] = (toInt(input) - 1) * 3;
5313    });
5314
5315    // MOMENTS
5316
5317    function getSetQuarter (input) {
5318        return input == null ? Math.ceil((this.month() + 1) / 3) : this.month((input - 1) * 3 + this.month() % 3);
5319    }
5320
5321    // FORMATTING
5322
5323    addFormatToken('D', ['DD', 2], 'Do', 'date');
5324
5325    // ALIASES
5326
5327    addUnitAlias('date', 'D');
5328
5329    // PRIORITY
5330    addUnitPriority('date', 9);
5331
5332    // PARSING
5333
5334    addRegexToken('D',  match1to2);
5335    addRegexToken('DD', match1to2, match2);
5336    addRegexToken('Do', function (isStrict, locale) {
5337        // TODO: Remove "ordinalParse" fallback in next major release.
5338        return isStrict ?
5339          (locale._dayOfMonthOrdinalParse || locale._ordinalParse) :
5340          locale._dayOfMonthOrdinalParseLenient;
5341    });
5342
5343    addParseToken(['D', 'DD'], DATE);
5344    addParseToken('Do', function (input, array) {
5345        array[DATE] = toInt(input.match(match1to2)[0]);
5346    });
5347
5348    // MOMENTS
5349
5350    var getSetDayOfMonth = makeGetSet('Date', true);
5351
5352    // FORMATTING
5353
5354    addFormatToken('DDD', ['DDDD', 3], 'DDDo', 'dayOfYear');
5355
5356    // ALIASES
5357
5358    addUnitAlias('dayOfYear', 'DDD');
5359
5360    // PRIORITY
5361    addUnitPriority('dayOfYear', 4);
5362
5363    // PARSING
5364
5365    addRegexToken('DDD',  match1to3);
5366    addRegexToken('DDDD', match3);
5367    addParseToken(['DDD', 'DDDD'], function (input, array, config) {
5368        config._dayOfYear = toInt(input);
5369    });
5370
5371    // HELPERS
5372
5373    // MOMENTS
5374
5375    function getSetDayOfYear (input) {
5376        var dayOfYear = Math.round((this.clone().startOf('day') - this.clone().startOf('year')) / 864e5) + 1;
5377        return input == null ? dayOfYear : this.add((input - dayOfYear), 'd');
5378    }
5379
5380    // FORMATTING
5381
5382    addFormatToken('m', ['mm', 2], 0, 'minute');
5383
5384    // ALIASES
5385
5386    addUnitAlias('minute', 'm');
5387
5388    // PRIORITY
5389
5390    addUnitPriority('minute', 14);
5391
5392    // PARSING
5393
5394    addRegexToken('m',  match1to2);
5395    addRegexToken('mm', match1to2, match2);
5396    addParseToken(['m', 'mm'], MINUTE);
5397
5398    // MOMENTS
5399
5400    var getSetMinute = makeGetSet('Minutes', false);
5401
5402    // FORMATTING
5403
5404    addFormatToken('s', ['ss', 2], 0, 'second');
5405
5406    // ALIASES
5407
5408    addUnitAlias('second', 's');
5409
5410    // PRIORITY
5411
5412    addUnitPriority('second', 15);
5413
5414    // PARSING
5415
5416    addRegexToken('s',  match1to2);
5417    addRegexToken('ss', match1to2, match2);
5418    addParseToken(['s', 'ss'], SECOND);
5419
5420    // MOMENTS
5421
5422    var getSetSecond = makeGetSet('Seconds', false);
5423
5424    // FORMATTING
5425
5426    addFormatToken('S', 0, 0, function () {
5427        return ~~(this.millisecond() / 100);
5428    });
5429
5430    addFormatToken(0, ['SS', 2], 0, function () {
5431        return ~~(this.millisecond() / 10);
5432    });
5433
5434    addFormatToken(0, ['SSS', 3], 0, 'millisecond');
5435    addFormatToken(0, ['SSSS', 4], 0, function () {
5436        return this.millisecond() * 10;
5437    });
5438    addFormatToken(0, ['SSSSS', 5], 0, function () {
5439        return this.millisecond() * 100;
5440    });
5441    addFormatToken(0, ['SSSSSS', 6], 0, function () {
5442        return this.millisecond() * 1000;
5443    });
5444    addFormatToken(0, ['SSSSSSS', 7], 0, function () {
5445        return this.millisecond() * 10000;
5446    });
5447    addFormatToken(0, ['SSSSSSSS', 8], 0, function () {
5448        return this.millisecond() * 100000;
5449    });
5450    addFormatToken(0, ['SSSSSSSSS', 9], 0, function () {
5451        return this.millisecond() * 1000000;
5452    });
5453
5454
5455    // ALIASES
5456
5457    addUnitAlias('millisecond', 'ms');
5458
5459    // PRIORITY
5460
5461    addUnitPriority('millisecond', 16);
5462
5463    // PARSING
5464
5465    addRegexToken('S',    match1to3, match1);
5466    addRegexToken('SS',   match1to3, match2);
5467    addRegexToken('SSS',  match1to3, match3);
5468
5469    var token;
5470    for (token = 'SSSS'; token.length <= 9; token += 'S') {
5471        addRegexToken(token, matchUnsigned);
5472    }
5473
5474    function parseMs(input, array) {
5475        array[MILLISECOND] = toInt(('0.' + input) * 1000);
5476    }
5477
5478    for (token = 'S'; token.length <= 9; token += 'S') {
5479        addParseToken(token, parseMs);
5480    }
5481    // MOMENTS
5482
5483    var getSetMillisecond = makeGetSet('Milliseconds', false);
5484
5485    // FORMATTING
5486
5487    addFormatToken('z',  0, 0, 'zoneAbbr');
5488    addFormatToken('zz', 0, 0, 'zoneName');
5489
5490    // MOMENTS
5491
5492    function getZoneAbbr () {
5493        return this._isUTC ? 'UTC' : '';
5494    }
5495
5496    function getZoneName () {
5497        return this._isUTC ? 'Coordinated Universal Time' : '';
5498    }
5499
5500    var proto = Moment.prototype;
5501
5502    proto.add               = add;
5503    proto.calendar          = calendar$1;
5504    proto.clone             = clone;
5505    proto.diff              = diff;
5506    proto.endOf             = endOf;
5507    proto.format            = format;
5508    proto.from              = from;
5509    proto.fromNow           = fromNow;
5510    proto.to                = to;
5511    proto.toNow             = toNow;
5512    proto.get               = stringGet;
5513    proto.invalidAt         = invalidAt;
5514    proto.isAfter           = isAfter;
5515    proto.isBefore          = isBefore;
5516    proto.isBetween         = isBetween;
5517    proto.isSame            = isSame;
5518    proto.isSameOrAfter     = isSameOrAfter;
5519    proto.isSameOrBefore    = isSameOrBefore;
5520    proto.isValid           = isValid$2;
5521    proto.lang              = lang;
5522    proto.locale            = locale;
5523    proto.localeData        = localeData;
5524    proto.max               = prototypeMax;
5525    proto.min               = prototypeMin;
5526    proto.parsingFlags      = parsingFlags;
5527    proto.set               = stringSet;
5528    proto.startOf           = startOf;
5529    proto.subtract          = subtract;
5530    proto.toArray           = toArray;
5531    proto.toObject          = toObject;
5532    proto.toDate            = toDate;
5533    proto.toISOString       = toISOString;
5534    proto.inspect           = inspect;
5535    proto.toJSON            = toJSON;
5536    proto.toString          = toString;
5537    proto.unix              = unix;
5538    proto.valueOf           = valueOf;
5539    proto.creationData      = creationData;
5540    proto.year       = getSetYear;
5541    proto.isLeapYear = getIsLeapYear;
5542    proto.weekYear    = getSetWeekYear;
5543    proto.isoWeekYear = getSetISOWeekYear;
5544    proto.quarter = proto.quarters = getSetQuarter;
5545    proto.month       = getSetMonth;
5546    proto.daysInMonth = getDaysInMonth;
5547    proto.week           = proto.weeks        = getSetWeek;
5548    proto.isoWeek        = proto.isoWeeks     = getSetISOWeek;
5549    proto.weeksInYear    = getWeeksInYear;
5550    proto.isoWeeksInYear = getISOWeeksInYear;
5551    proto.date       = getSetDayOfMonth;
5552    proto.day        = proto.days             = getSetDayOfWeek;
5553    proto.weekday    = getSetLocaleDayOfWeek;
5554    proto.isoWeekday = getSetISODayOfWeek;
5555    proto.dayOfYear  = getSetDayOfYear;
5556    proto.hour = proto.hours = getSetHour;
5557    proto.minute = proto.minutes = getSetMinute;
5558    proto.second = proto.seconds = getSetSecond;
5559    proto.millisecond = proto.milliseconds = getSetMillisecond;
5560    proto.utcOffset            = getSetOffset;
5561    proto.utc                  = setOffsetToUTC;
5562    proto.local                = setOffsetToLocal;
5563    proto.parseZone            = setOffsetToParsedOffset;
5564    proto.hasAlignedHourOffset = hasAlignedHourOffset;
5565    proto.isDST                = isDaylightSavingTime;
5566    proto.isLocal              = isLocal;
5567    proto.isUtcOffset          = isUtcOffset;
5568    proto.isUtc                = isUtc;
5569    proto.isUTC                = isUtc;
5570    proto.zoneAbbr = getZoneAbbr;
5571    proto.zoneName = getZoneName;
5572    proto.dates  = deprecate('dates accessor is deprecated. Use date instead.', getSetDayOfMonth);
5573    proto.months = deprecate('months accessor is deprecated. Use month instead', getSetMonth);
5574    proto.years  = deprecate('years accessor is deprecated. Use year instead', getSetYear);
5575    proto.zone   = deprecate('moment().zone is deprecated, use moment().utcOffset instead. http://momentjs.com/guides/#/warnings/zone/', getSetZone);
5576    proto.isDSTShifted = deprecate('isDSTShifted is deprecated. See http://momentjs.com/guides/#/warnings/dst-shifted/ for more information', isDaylightSavingTimeShifted);
5577
5578    function createUnix (input) {
5579        return createLocal(input * 1000);
5580    }
5581
5582    function createInZone () {
5583        return createLocal.apply(null, arguments).parseZone();
5584    }
5585
5586    function preParsePostFormat (string) {
5587        return string;
5588    }
5589
5590    var proto$1 = Locale.prototype;
5591
5592    proto$1.calendar        = calendar;
5593    proto$1.longDateFormat  = longDateFormat;
5594    proto$1.invalidDate     = invalidDate;
5595    proto$1.ordinal         = ordinal;
5596    proto$1.preparse        = preParsePostFormat;
5597    proto$1.postformat      = preParsePostFormat;
5598    proto$1.relativeTime    = relativeTime;
5599    proto$1.pastFuture      = pastFuture;
5600    proto$1.set             = set;
5601
5602    proto$1.months            =        localeMonths;
5603    proto$1.monthsShort       =        localeMonthsShort;
5604    proto$1.monthsParse       =        localeMonthsParse;
5605    proto$1.monthsRegex       = monthsRegex;
5606    proto$1.monthsShortRegex  = monthsShortRegex;
5607    proto$1.week = localeWeek;
5608    proto$1.firstDayOfYear = localeFirstDayOfYear;
5609    proto$1.firstDayOfWeek = localeFirstDayOfWeek;
5610
5611    proto$1.weekdays       =        localeWeekdays;
5612    proto$1.weekdaysMin    =        localeWeekdaysMin;
5613    proto$1.weekdaysShort  =        localeWeekdaysShort;
5614    proto$1.weekdaysParse  =        localeWeekdaysParse;
5615
5616    proto$1.weekdaysRegex       =        weekdaysRegex;
5617    proto$1.weekdaysShortRegex  =        weekdaysShortRegex;
5618    proto$1.weekdaysMinRegex    =        weekdaysMinRegex;
5619
5620    proto$1.isPM = localeIsPM;
5621    proto$1.meridiem = localeMeridiem;
5622
5623    function get$1 (format, index, field, setter) {
5624        var locale = getLocale();
5625        var utc = createUTC().set(setter, index);
5626        return locale[field](utc, format);
5627    }
5628
5629    function listMonthsImpl (format, index, field) {
5630        if (isNumber(format)) {
5631            index = format;
5632            format = undefined;
5633        }
5634
5635        format = format || '';
5636
5637        if (index != null) {
5638            return get$1(format, index, field, 'month');
5639        }
5640
5641        var i;
5642        var out = [];
5643        for (i = 0; i < 12; i++) {
5644            out[i] = get$1(format, i, field, 'month');
5645        }
5646        return out;
5647    }
5648
5649    // ()
5650    // (5)
5651    // (fmt, 5)
5652    // (fmt)
5653    // (true)
5654    // (true, 5)
5655    // (true, fmt, 5)
5656    // (true, fmt)
5657    function listWeekdaysImpl (localeSorted, format, index, field) {
5658        if (typeof localeSorted === 'boolean') {
5659            if (isNumber(format)) {
5660                index = format;
5661                format = undefined;
5662            }
5663
5664            format = format || '';
5665        } else {
5666            format = localeSorted;
5667            index = format;
5668            localeSorted = false;
5669
5670            if (isNumber(format)) {
5671                index = format;
5672                format = undefined;
5673            }
5674
5675            format = format || '';
5676        }
5677
5678        var locale = getLocale(),
5679            shift = localeSorted ? locale._week.dow : 0;
5680
5681        if (index != null) {
5682            return get$1(format, (index + shift) % 7, field, 'day');
5683        }
5684
5685        var i;
5686        var out = [];
5687        for (i = 0; i < 7; i++) {
5688            out[i] = get$1(format, (i + shift) % 7, field, 'day');
5689        }
5690        return out;
5691    }
5692
5693    function listMonths (format, index) {
5694        return listMonthsImpl(format, index, 'months');
5695    }
5696
5697    function listMonthsShort (format, index) {
5698        return listMonthsImpl(format, index, 'monthsShort');
5699    }
5700
5701    function listWeekdays (localeSorted, format, index) {
5702        return listWeekdaysImpl(localeSorted, format, index, 'weekdays');
5703    }
5704
5705    function listWeekdaysShort (localeSorted, format, index) {
5706        return listWeekdaysImpl(localeSorted, format, index, 'weekdaysShort');
5707    }
5708
5709    function listWeekdaysMin (localeSorted, format, index) {
5710        return listWeekdaysImpl(localeSorted, format, index, 'weekdaysMin');
5711    }
5712
5713    getSetGlobalLocale('en', {
5714        dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
5715        ordinal : function (number) {
5716            var b = number % 10,
5717                output = (toInt(number % 100 / 10) === 1) ? 'th' :
5718                (b === 1) ? 'st' :
5719                (b === 2) ? 'nd' :
5720                (b === 3) ? 'rd' : 'th';
5721            return number + output;
5722        }
5723    });
5724
5725    // Side effect imports
5726
5727    hooks.lang = deprecate('moment.lang is deprecated. Use moment.locale instead.', getSetGlobalLocale);
5728    hooks.langData = deprecate('moment.langData is deprecated. Use moment.localeData instead.', getLocale);
5729
5730    var mathAbs = Math.abs;
5731
5732    function abs () {
5733        var data           = this._data;
5734
5735        this._milliseconds = mathAbs(this._milliseconds);
5736        this._days         = mathAbs(this._days);
5737        this._months       = mathAbs(this._months);
5738
5739        data.milliseconds  = mathAbs(data.milliseconds);
5740        data.seconds       = mathAbs(data.seconds);
5741        data.minutes       = mathAbs(data.minutes);
5742        data.hours         = mathAbs(data.hours);
5743        data.months        = mathAbs(data.months);
5744        data.years         = mathAbs(data.years);
5745
5746        return this;
5747    }
5748
5749    function addSubtract$1 (duration, input, value, direction) {
5750        var other = createDuration(input, value);
5751
5752        duration._milliseconds += direction * other._milliseconds;
5753        duration._days         += direction * other._days;
5754        duration._months       += direction * other._months;
5755
5756        return duration._bubble();
5757    }
5758
5759    // supports only 2.0-style add(1, 's') or add(duration)
5760    function add$1 (input, value) {
5761        return addSubtract$1(this, input, value, 1);
5762    }
5763
5764    // supports only 2.0-style subtract(1, 's') or subtract(duration)
5765    function subtract$1 (input, value) {
5766        return addSubtract$1(this, input, value, -1);
5767    }
5768
5769    function absCeil (number) {
5770        if (number < 0) {
5771            return Math.floor(number);
5772        } else {
5773            return Math.ceil(number);
5774        }
5775    }
5776
5777    function bubble () {
5778        var milliseconds = this._milliseconds;
5779        var days         = this._days;
5780        var months       = this._months;
5781        var data         = this._data;
5782        var seconds, minutes, hours, years, monthsFromDays;
5783
5784        // if we have a mix of positive and negative values, bubble down first
5785        // check: https://github.com/moment/moment/issues/2166
5786        if (!((milliseconds >= 0 && days >= 0 && months >= 0) ||
5787                (milliseconds <= 0 && days <= 0 && months <= 0))) {
5788            milliseconds += absCeil(monthsToDays(months) + days) * 864e5;
5789            days = 0;
5790            months = 0;
5791        }
5792
5793        // The following code bubbles up values, see the tests for
5794        // examples of what that means.
5795        data.milliseconds = milliseconds % 1000;
5796
5797        seconds           = absFloor(milliseconds / 1000);
5798        data.seconds      = seconds % 60;
5799
5800        minutes           = absFloor(seconds / 60);
5801        data.minutes      = minutes % 60;
5802
5803        hours             = absFloor(minutes / 60);
5804        data.hours        = hours % 24;
5805
5806        days += absFloor(hours / 24);
5807
5808        // convert days to months
5809        monthsFromDays = absFloor(daysToMonths(days));
5810        months += monthsFromDays;
5811        days -= absCeil(monthsToDays(monthsFromDays));
5812
5813        // 12 months -> 1 year
5814        years = absFloor(months / 12);
5815        months %= 12;
5816
5817        data.days   = days;
5818        data.months = months;
5819        data.years  = years;
5820
5821        return this;
5822    }
5823
5824    function daysToMonths (days) {
5825        // 400 years have 146097 days (taking into account leap year rules)
5826        // 400 years have 12 months === 4800
5827        return days * 4800 / 146097;
5828    }
5829
5830    function monthsToDays (months) {
5831        // the reverse of daysToMonths
5832        return months * 146097 / 4800;
5833    }
5834
5835    function as (units) {
5836        if (!this.isValid()) {
5837            return NaN;
5838        }
5839        var days;
5840        var months;
5841        var milliseconds = this._milliseconds;
5842
5843        units = normalizeUnits(units);
5844
5845        if (units === 'month' || units === '
vendor: 1,721 bytes, lines 5845-5890
5845year') {
5846            days   = this._days   + milliseconds / 864e5;
5847            months = this._months + daysToMonths(days);
5848            return units === 'month' ? months : months / 12;
5849        } else {
5850            // handle milliseconds separately because of floating point math errors (issue #1867)
5851            days = this._days + Math.round(monthsToDays(this._months));
5852            switch (units) {
5853                case 'week'   : return days / 7     + milliseconds / 6048e5;
5854                case 'day'    : return days         + milliseconds / 864e5;
5855                case 'hour'   : return days * 24    + milliseconds / 36e5;
5856                case 'minute' : return days * 1440  + milliseconds / 6e4;
5857                case 'second' : return days * 86400 + milliseconds / 1000;
5858                // Math.floor prevents floating point math errors here
5859                case 'millisecond': return Math.floor(days * 864e5) + milliseconds;
5860                default: throw new Error('Unknown unit ' + units);
5861            }
5862        }
5863    }
5864
5865    // TODO: Use this.as('ms')?
5866    function valueOf$1 () {
5867        if (!this.isValid()) {
5868            return NaN;
5869        }
5870        return (
5871            this._milliseconds +
5872            this._days * 864e5 +
5873            (this._months % 12) * 2592e6 +
5874            toInt(this._months / 12) * 31536e6
5875        );
5876    }
5877
5878    function makeAs (alias) {
5879        return function () {
5880            return this.as(alias);
5881        };
5882    }
5883
5884    var asMilliseconds = makeAs('ms');
5885    var asSeconds      = makeAs('s');
5886    var asMinutes      = makeAs('m');
5887    var asHours        = makeAs('h');
5888    var asDays         = makeAs('d');
5889    var asWeeks        = makeAs('w');
5890    var asMonths       = makeAs('M
vendor: 6,605 bytes, lines 5890-6082
5890');
5891    var asYears        = makeAs('y');
5892
5893    function clone$1 () {
5894        return createDuration(this);
5895    }
5896
5897    function get$2 (units) {
5898        units = normalizeUnits(units);
5899        return this.isValid() ? this[units + 's']() : NaN;
5900    }
5901
5902    function makeGetter(name) {
5903        return function () {
5904            return this.isValid() ? this._data[name] : NaN;
5905        };
5906    }
5907
5908    var milliseconds = makeGetter('milliseconds');
5909    var seconds      = makeGetter('seconds');
5910    var minutes      = makeGetter('minutes');
5911    var hours        = makeGetter('hours');
5912    var days         = makeGetter('days');
5913    var months       = makeGetter('months');
5914    var years        = makeGetter('years');
5915
5916    function weeks () {
5917        return absFloor(this.days() / 7);
5918    }
5919
5920    var round = Math.round;
5921    var thresholds = {
5922        ss: 44,         // a few seconds to seconds
5923        s : 45,         // seconds to minute
5924        m : 45,         // minutes to hour
5925        h : 22,         // hours to day
5926        d : 26,         // days to month
5927        M : 11          // months to year
5928    };
5929
5930    // helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
5931    function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {
5932        return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
5933    }
5934
5935    function relativeTime$1 (posNegDuration, withoutSuffix, locale) {
5936        var duration = createDuration(posNegDuration).abs();
5937        var seconds  = round(duration.as('s'));
5938        var minutes  = round(duration.as('m'));
5939        var hours    = round(duration.as('h'));
5940        var days     = round(duration.as('d'));
5941        var months   = round(duration.as('M'));
5942        var years    = round(duration.as('y'));
5943
5944        var a = seconds <= thresholds.ss && ['s', seconds]  ||
5945                seconds < thresholds.s   && ['ss', seconds] ||
5946                minutes <= 1             && ['m']           ||
5947                minutes < thresholds.m   && ['mm', minutes] ||
5948                hours   <= 1             && ['h']           ||
5949                hours   < thresholds.h   && ['hh', hours]   ||
5950                days    <= 1             && ['d']           ||
5951                days    < thresholds.d   && ['dd', days]    ||
5952                months  <= 1             && ['M']           ||
5953                months  < thresholds.M   && ['MM', months]  ||
5954                years   <= 1             && ['y']           || ['yy', years];
5955
5956        a[2] = withoutSuffix;
5957        a[3] = +posNegDuration > 0;
5958        a[4] = locale;
5959        return substituteTimeAgo.apply(null, a);
5960    }
5961
5962    // This function allows you to set the rounding function for relative time strings
5963    function getSetRelativeTimeRounding (roundingFunction) {
5964        if (roundingFunction === undefined) {
5965            return round;
5966        }
5967        if (typeof(roundingFunction) === 'function') {
5968            round = roundingFunction;
5969            return true;
5970        }
5971        return false;
5972    }
5973
5974    // This function allows you to set a threshold for relative time strings
5975    function getSetRelativeTimeThreshold (threshold, limit) {
5976        if (thresholds[threshold] === undefined) {
5977            return false;
5978        }
5979        if (limit === undefined) {
5980            return thresholds[threshold];
5981        }
5982        thresholds[threshold] = limit;
5983        if (threshold === 's') {
5984            thresholds.ss = limit - 1;
5985        }
5986        return true;
5987    }
5988
5989    function humanize (withSuffix) {
5990        if (!this.isValid()) {
5991            return this.localeData().invalidDate();
5992        }
5993
5994        var locale = this.localeData();
5995        var output = relativeTime$1(this, !withSuffix, locale);
5996
5997        if (withSuffix) {
5998            output = locale.pastFuture(+this, output);
5999        }
6000
6001        return locale.postformat(output);
6002    }
6003
6004    var abs$1 = Math.abs;
6005
6006    function sign(x) {
6007        return ((x > 0) - (x < 0)) || +x;
6008    }
6009
6010    function toISOString$1() {
6011        // for ISO strings we do not use the normal bubbling rules:
6012        //  * milliseconds bubble up until they become hours
6013        //  * days do not bubble at all
6014        //  * months bubble up until they become years
6015        // This is because there is no context-free conversion between hours and days
6016        // (think of clock changes)
6017        // and also not between days and months (28-31 days per month)
6018        if (!this.isValid()) {
6019            return this.localeData().invalidDate();
6020        }
6021
6022        var seconds = abs$1(this._milliseconds) / 1000;
6023        var days         = abs$1(this._days);
6024        var months       = abs$1(this._months);
6025        var minutes, hours, years;
6026
6027        // 3600 seconds -> 60 minutes -> 1 hour
6028        minutes           = absFloor(seconds / 60);
6029        hours             = absFloor(minutes / 60);
6030        seconds %= 60;
6031        minutes %= 60;
6032
6033        // 12 months -> 1 year
6034        years  = absFloor(months / 12);
6035        months %= 12;
6036
6037
6038        // inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
6039        var Y = years;
6040        var M = months;
6041        var D = days;
6042        var h = hours;
6043        var m = minutes;
6044        var s = seconds ? seconds.toFixed(3).replace(/\.?0+$/, '') : '';
6045        var total = this.asSeconds();
6046
6047        if (!total) {
6048            // this is the same as C#'s (Noda) and python (isodate)...
6049            // but not other JS (goog.date)
6050            return 'P0D';
6051        }
6052
6053        var totalSign = total < 0 ? '-' : '';
6054        var ymSign = sign(this._months) !== sign(total) ? '-' : '';
6055        var daysSign = sign(this._days) !== sign(total) ? '-' : '';
6056        var hmsSign = sign(this._milliseconds) !== sign(total) ? '-' : '';
6057
6058        return totalSign + 'P' +
6059            (Y ? ymSign + Y + 'Y' : '') +
6060            (M ? ymSign + M + 'M' : '') +
6061            (D ? daysSign + D + 'D' : '') +
6062            ((h || m || s) ? 'T' : '') +
6063            (h ? hmsSign + h + 'H' : '') +
6064            (m ? hmsSign + m + 'M' : '') +
6065            (s ? hmsSign + s + 'S' : '');
6066    }
6067
6068    var proto$2 = Duration.prototype;
6069
6070    proto$2.isValid        = isValid$1;
6071    proto$2.abs            = abs;
6072    proto$2.add            = add$1;
6073    proto$2.subtract       = subtract$1;
6074    proto$2.as             = as;
6075    proto$2.asMilliseconds = asMilliseconds;
6076    proto$2.asSeconds      = asSeconds;
6077    proto$2.asMinutes      = asMinutes;
6078    proto$2.asHours        = asHours;
6079    proto$2.asDays         = asDays;
6080    proto$2.asWeeks        = asWeeks;
6081    proto$2.asMonths       = asMonths;
6082    proto$2.as
6082Years        = asYears;
6083    proto$2.valueOf        = valueOf$1;
6084    proto$2._bubble        = bubble;
6085    proto$2.clone          = clone$1;
6086    proto$2.get            = get$2;
6087    proto$2.milliseconds   = milliseconds;
6088    proto$2.seconds        = seconds;
6089    proto$2.minutes        = minutes;
6090    proto$2.hours          = hours;
6091    proto$2.days           = days;
6092    proto$2.weeks          = weeks;
6093    proto$2.months         = months;
6094    proto$2.years          = years;
6095    proto$2.humanize       = humanize;
6096    proto$2.toISOString    = toISOString$1;
6097    proto$2.toString       = toISOString$1;
6098    proto$2.toJSON         = toISOString$1;
6099    proto$2.locale         = locale;
6100    proto$2.localeData     = localeData;
6101
6102    proto$2.toIsoString = deprecate('toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)', toISOString$1);
6103    proto$2.lang = lang;
6104
6105    // Side effect imports
6106
6107    // FORMATTING
6108
6109    addFormatToken('X', 0, 0, 'unix');
6110    addFormatToken('x', 0, 0, 'valueOf');
6111
6112    // PARSING
6113
6114    addRegexToken('x', matchSigned);
6115    addRegexToken('X', matchTimestamp);
6116    addParseToken('X', function (input, array, config) {
6117        config._d = new Date(parseFloat(input, 10) * 1000);
6118    });
6119    addParseToken('x', function (input, array, config) {
6120        config._d = new Date(toInt(input));
6121    });
6122
6123    // Side effect imports
6124
6125
6126    hooks.version = '2.22.2';
6127
6128    setHookCallback(createLocal);
6129
6130    hooks.fn                    = proto;
6131    hooks.min                   = min;
6132    hooks.max                   = max;
6133    hooks.now                   = now;
6134    hooks.utc                   = createUTC;
6135    hooks.unix                  = createUnix;
6136    hooks.months                = listMonths;
6137    hooks.isDate                = isDate;
6138    hooks.locale                = getSetGlobalLocale;
6139    hooks.invalid               = createInvalid;
6140    hooks.duration              = createDuration;
6141    hooks.isMoment              = isMoment;
6142    hooks.weekdays              = listWeekdays;
6143    hooks.parseZone             = createInZone;
6144    hooks.localeData            = getLocale;
6145    hooks.isDuration            = isDuration;
6146    hooks.monthsShort           = listMonthsShort;
6147    hooks.weekdaysMin           = listWeekdaysMin;
6148    hooks.defineLocale          = defineLocale;
6149    hooks.updateLocale          = updateLocale;
6150    hooks.locales               = listLocales;
6151    hooks.weekdaysShort         = listWeekdaysShort;
6152    hooks.normalizeUnits        = normalizeUnits;
6153    hooks.relativeTimeRounding  = getSetRelativeTimeRounding;
6154    hooks.relativeTimeThreshold = getSetRelativeTimeThreshold;
6155    hooks.calendarFormat        = getCalendarFormat;
6156    hooks.prototype             = proto;
6157
6158    // currently HTML5 input type only supports 24-hour formats
6159    hooks.HTML5_FMT = {
6160        DATETIME_LOCAL: 'YYYY-MM-DDTHH:mm',             // <input type="datetime-local" />
6161        DATETIME_LOCAL_SECONDS: 'YYYY-MM-DDTHH:mm:ss',  // <input type="datetime-local" step="1" />
6162        DATETIME_LOCAL_MS: 'YYYY-MM-DDTHH:mm:ss.SSS',   // <input type="datetime-local" step="0.001" />
6163        DATE: 'YYYY-MM-DD',                             // <input type="date" />
6164        TIME: 'HH:mm',                                  // <input type="time" />
6165        TIME_SECONDS: 'HH:mm:ss',                       // <input type="time" step="1" />
6166        TIME_MS: 'HH:mm:ss.SSS',                        // <input type="time" step="0.001" />
6167        WEEK: 'YYYY-[W]WW',                             // <input type="week" />
6168        MONTH: 'YYYY-MM'                                // <input type="month" />
6169    };
6170
6171    return hooks;
6172
6173})));
6174
6175},{}],7:[function(require,module,exports){
6176/**
6177 * @namespace Chart
6178 */
6179var Chart = require(30)();
6180
6181Chart.helpers = require(46);
6182
6183// @todo dispatch these helpers into appropriated helpers/helpers.* file and write unit tests!
6184require(28)(Chart);
6185
6186Chart.Animation = require(22);
6187Chart.animationService = require(23);
6188Chart.defaults = require(26);
6189Chart.Element = require(27);
6190Chart.elements = require(41);
6191Chart.Interaction = require(29);
6192Chart.layouts = require(31);
6193Chart.platform = require(49);
6194Chart.plugins = require(32);
6195Chart.Scale = require(33);
6196Chart.scaleService = require(34);
6197Chart.Ticks = require(35);
6198Chart.Tooltip = require(36);
6199
6200require(24)(Chart);
6201require(25)(Chart);
6202
6203require(56)(Chart);
6204require(54)(Chart);
6205require(55)(Chart);
6206require(57)(Chart);
6207require(58)(Chart);
6208require(59)(Chart);
6209
6210// Controllers must be loaded after elements
6211// See Chart.core.datasetController.dataElementType
6212require(15)(Chart);
6213require(16)(Chart);
6214require(17)(Chart);
6215require(18)(Chart);
6216require(19)(Chart);
6217require(20)(Chart);
6218require(21)(Chart);
6219
6220require(8)(Chart);
6221require(9)(Chart);
6222require(10)(Chart);
6223require(11)(Chart);
6224require(12)(Chart);
6225require(13)(Chart);
6226require(14)(Chart);
6227
6228// Loading built-in plugins
6229var plugins = require(50);
6230for (var k in plugins) {
6231	if (plugins.hasOwnProperty(k)) {
6232		Chart.plugins.register(plugins[k]);
6233	}
6234}
6235
6236Chart.platform.initialize();
6237
6238module.exports = Chart;
6239if (typeof window !== 'undefined') {
6240	window.Chart = Chart;
6241}
6242
6243// DEPRECATIONS
6244
6245/**
6246 * Provided for backward compatibility, not available anymore
6247 * @namespace Chart.Legend
6248 * @deprecated since version 2.1.5
6249 * @todo remove at version 3
6250 * @private
6251 */
6252Chart.Legend = plugins.legend._element;
6253
6254/**
6255 * Provided for backward compatibility, not available anymore
6256 * @namespace Chart.Title
6257 * @deprecated since version 2.1.5
6258 * @todo remove at version 3
6259 * @private
6260 */
6261Chart.Title = plugins.title._element;
6262
6263/**
6264 * Provided for backward compatibility, use Chart.plugins instead
6265 * @namespace Chart.pluginService
6266 * @deprecated since version 2.1.5
6267 * @todo remove at version 3
6268 * @private
6269 */
6270Chart.pluginService = Chart.plugins;
6271
6272/**
6273 * Provided for backward compatibility, inheriting from Chart.PlugingBase has no
6274 * effect, instead simply create/register plugins via plain JavaScript objects.
6275 * @interface Chart.PluginBase
6276 * @deprecated since version 2.5.0
6277 * @todo remove at version 3
6278 * @private
6279 */
6280Chart.PluginBase = Chart.Element.extend({});
6281
6282/**
6283 * Provided for backward compatibility, use Chart.helpers.canvas instead.
6284 * @namespace Chart.canvasHelpers
6285 * @deprecated since version 2.6.0
6286 * @todo remove at version 3
6287 * @private
6288 */
6289Chart.canvasHelpers = Chart.helpers.canvas;
6290
6291/**
6292 * Provided for backward compatibility, use Chart.layouts instead.
6293 * @namespace Chart.layoutService
6294 * @deprecated since version 2.8.0
6295 * @todo remove at version 3
6296 * @private
6297 */
6298Chart.layoutService = Chart.layouts;
6299
6300},{"10":10,"11":11,"12":12,"13":13,"14":14,"15":15,"16":16,"17":17,"18":18,"19":19,"20":20,"21":21,"22":22,"23":23,"24":24,"25":25,"26":26,"27":27,"28":28,"29":29,"30":30,"31":31,"32":32,"33":33,"34":34,"35":35,"36":36,"41":41,"46":46,"49":49,"50":50,"54":54,"55":55,"56":56,"57":57,"58":58,"59":59,"8":8,"9":9}],8:[function(require,module,exports){
6301'use strict';
6302
6303module.exports = function(Chart) {
6304
6305	Chart.Bar = function(context, config) {
6306		config.type = 'bar';
6307
6308		return new Chart(context, config);
6309	};
6310
6311};
6312
6313},{}],9:[function(require,module,exports){
6314'use strict';
6315
6316module.exports = function(Chart) {
6317
6318	Chart.Bubble = function(context, config) {
6319		config.type = 'bubble';
6320		return new Chart(context, config);
6321	};
6322
6323};
6324
6325},{}],10:[function(require,module,exports){
6326'use strict';
6327
6328module.exports = function(Chart) {
6329
6330	Chart.Doughnut = function(context, config) {
6331		config.type = 'doughnut';
6332
6333		return new Chart(context, config);
6334	};
6335
6336};
6337
6338},{}],11:[function(require,module,exports){
6339'use strict';
6340
6341module.exports = function(Chart) {
6342
6343	Chart.Line = function(context, config) {
6344		config.type = 'line';
6345
6346		return new Chart(context, config);
6347	};
6348
6349};
6350
6351},{}],12:[function(require,module,exports){
6352'use strict';
6353
6354module.exports = function(Chart) {
6355
6356	Chart.PolarArea = function(context, config) {
6357		config.type = 'polarArea';
6358
6359		return new Chart(context, config);
6360	};
6361
6362};
6363
6364},{}],13:[function(require,module,exports){
6365'use strict';
6366
6367module.exports = function(Chart) {
6368
6369	Chart.Radar = function(context, config) {
6370		config.type = 'radar';
6371
6372		return new Chart(context, config);
6373	};
6374
6375};
6376
6377},{}],14:[function(require,module,exports){
6378'use strict';
6379
6380module.exports = function(Chart) {
6381	Chart.Scatter = function(context, config) {
6382		config.type = 'scatter';
6383		return new Chart(context, config);
6384	};
6385};
6386
6387},{}],15:[function(require,module,exports){
6388'use strict';
6389
6390var defaults = require(26);
6391var elements = require(41);
6392var helpers = require(46);
6393
6394defaults._set('bar', {
6395	hover: {
6396		mode: 'label'
6397	},
6398
6399	scales: {
6400		xAxes: [{
6401			type: 'category',
6402
6403			// Specific to Bar Controller
6404			categoryPercentage: 0.8,
6405			barPercentage: 0.9,
6406
6407			// offset settings
6408			offset: true,
6409
6410			// grid line settings
6411			gridLines: {
6412				offsetGridLines: true
6413			}
6414		}],
6415
6416		yAxes: [{
6417			type: 'linear'
6418		}]
6419	}
6420});
6421
6422defaults._set('horizontalBar', {
6423	hover: {
6424		mode: 'index',
6425		axis: 'y'
6426	},
6427
6428	scales: {
6429		xAxes: [{
6430			type: 'linear',
6431			position: 'bottom'
6432		}],
6433
6434		yAxes: [{
6435			position: 'left',
6436			type: 'category',
6437
6438			// Specific to Horizontal Bar Controller
6439			categoryPercentage: 0.8,
6440			barPercentage: 0.9,
6441
6442			// offset settings
6443			offset: true,
6444
6445			// grid line settings
6446			gridLines: {
6447				offsetGridLines: true
6448			}
6449		}]
6450	},
6451
6452	elements: {
6453		rectangle: {
6454			borderSkipped: 'left'
6455		}
6456	},
6457
6458	tooltips: {
6459		callbacks: {
6460			title: function(item, data) {
6461				// Pick first xLabel for now
6462				var title = '';
6463
6464				if (item.length > 0) {
6465					if (item[0].yLabel) {
6466						title = item[0].yLabel;
6467					} else if (data.labels.length > 0 && item[0].index < data.labels.length) {
6468						title = data.labels[item[0].index];
6469					}
6470				}
6471
6472				return title;
6473			},
6474
6475			label: function(item, data) {
6476				var datasetLabel = data.datasets[item.datasetIndex].label || '';
6477				return datasetLabel + ': ' + item.xLabel;
6478			}
6479		},
6480		mode: 'index',
6481		axis: 'y'
6482	}
6483});
6484
6485/**
6486 * Computes the "optimal" sample size to maintain bars equally sized while preventing overlap.
6487 * @private
6488 */
6489function computeMinSampleSize(scale, pixels) {
6490	var min = scale.isHorizontal() ? scale.width : scale.height;
6491	var ticks = scale.getTicks();
6492	var prev, curr, i, ilen;
6493
6494	for (i = 1, ilen = pixels.length; i < ilen; ++i) {
6495		min = Math.min(min, pixels[i] - pixels[i - 1]);
6496	}
6497
6498	for (i = 0, ilen = ticks.length; i < ilen; ++i) {
6499		curr = scale.getPixelForTick(i);
6500		min = i > 0 ? Math.min(min, curr - prev) : min;
6501		prev = curr;
6502	}
6503
6504	return min;
6505}
6506
6507/**
6508 * Computes an "ideal" category based on the absolute bar thickness or, if undefined or null,
6509 * uses the smallest interval (see computeMinSampleSize) that prevents bar overlapping. This
6510 * mode currently always generates bars equally sized (until we introduce scriptable options?).
6511 * @private
6512 */
6513function computeFitCategoryTraits(index, ruler, options) {
6514	var thickness = options.barThickness;
6515	var count = ruler.stackCount;
6516	var curr = ruler.pixels[index];
6517	var size, ratio;
6518
6519	if (helpers.isNullOrUndef(thickness)) {
6520		size = ruler.min * options.categoryPercentage;
6521		ratio = options.barPercentage;
6522	} else {
6523		// When bar thickness is enforced, category and bar percentages are ignored.
6524		// Note(SB): we could add support for relative bar thickness (e.g. barThickness: '50%')
6525		// and deprecate barPercentage since this value is ignored when thickness is absolute.
6526		size = thickness * count;
6527		ratio = 1;
6528	}
6529
6530	return {
6531		chunk: size / count,
6532		ratio: ratio,
6533		start: curr - (size / 2)
6534	};
6535}
6536
6537/**
6538 * Computes an "optimal" category that globally arranges bars side by side (no gap when
6539 * percentage options are 1), based on the previous and following categories. This mode
6540 * generates bars with different widths when data are not evenly spaced.
6541 * @private
6542 */
6543function computeFlexCategoryTraits(index, ruler, options) {
6544	var pixels = ruler.pixels;
6545	var curr = pixels[index];
6546	var prev = index > 0 ? pixels[index - 1] : null;
6547	var next = index < pixels.length - 1 ? pixels[index + 1] : null;
6548	var percent = options.categoryPercentage;
6549	var start, size;
6550
6551	if (prev === null) {
6552		// first data: its size is double based on the next point or,
6553		// if it's also the last data, we use the scale end extremity.
6554		prev = curr - (next === null ? ruler.end - curr : next - curr);
6555	}
6556
6557	if (next === null) {
6558		// last data: its size is also double based on the previous point.
6559		next = curr + curr - prev;
6560	}
6561
6562	start = curr - ((curr - prev) / 2) * percent;
6563	size = ((next - prev) / 2) * percent;
6564
6565	return {
6566		chunk: size / ruler.stackCount,
6567		ratio: options.barPercentage,
6568		start: start
6569	};
6570}
6571
6572module.exports = function(Chart) {
6573
6574	Chart.controllers.bar = Chart.DatasetController.extend({
6575
6576		dataElementType: elements.Rectangle,
6577
6578		initialize: function() {
6579			var me = this;
6580			var meta;
6581
6582			Chart.DatasetController.prototype.initialize.apply(me, arguments);
6583
6584			meta = me.getMeta();
6585			meta.stack = me.getDataset().stack;
6586			meta.bar = true;
6587		},
6588
6589		update: function(reset) {
6590			var me = this;
6591			var rects = me.getMeta().data;
6592			var i, ilen;
6593
6594			me._ruler = me.getRuler();
6595
6596			for (i = 0, ilen = rects.length; i < ilen; ++i) {
6597				me.updateElement(rects[i], i, reset);
6598			}
6599		},
6600
6601		updateElement: function(rectangle, index, reset) {
6602			var me = this;
6603			var chart = me.chart;
6604			var meta = me.getMeta();
6605			var dataset = me.getDataset();
6606			var custom = rectangle.custom || {};
6607			var rectangleOptions = chart.options.elements.rectangle;
6608
6609			rectangle._xScale = me.getScaleForId(meta.xAxisID);
6610			rectangle._yScale = me.getScaleForId(meta.yAxisID);
6611			rectangle._datasetIndex = me.index;
6612			rectangle._index = index;
6613
6614			rectangle._model = {
6615				datasetLabel: dataset.label,
6616				label: chart.data.labels[index],
6617				borderSkipped: custom.borderSkipped ? custom.borderSkipped : rectangleOptions.borderSkipped,
6618				backgroundColor: custom.backgroundColor ? custom.backgroundColor : helpers.valueAtIndexOrDefault(dataset.backgroundColor, index, rectangleOptions.backgroundColor),
6619				borderColor: custom.borderColor ? custom.borderColor : helpers.valueAtIndexOrDefault(dataset.borderColor, index, rectangleOptions.borderColor),
6620				borderWidth: custom.borderWidth ? custom.borderWidth : helpers.valueAtIndexOrDefault(dataset.borderWidth, index, rectangleOptions.borderWidth)
6621			};
6622
6623			me.updateElementGeometry(rectangle, index, reset);
6624
6625			rectangle.pivot();
6626		},
6627
6628		/**
6629		 * @private
6630		 */
6631		updateElementGeometry: function(rectangle, index, reset) {
6632			var me = this;
6633			var model = rectangle._model;
6634			var vscale = me.getValueScale();
6635			var base = vscale.getBasePixel();
6636			var horizontal = vscale.isHorizontal();
6637			var ruler = me._ruler || me.getRuler();
6638			var vpixels = me.calculateBarValuePixels(me.index, index);
6639			var ipixels = me.calculateBarIndexPixels(me.index, index, ruler);
6640
6641			model.horizontal = horizontal;
6642			model.base = reset ? base : vpixels.base;
6643			model.x = horizontal ? reset ? base : vpixels.head : ipixels.center;
6644			model.y = horizontal ? ipixels.center : reset ? base : vpixels.head;
6645			model.height = horizontal ? ipixels.size : undefined;
6646			model.width = horizontal ? undefined : ipixels.size;
6647		},
6648
6649		/**
6650		 * @private
6651		 */
6652		getValueScaleId: function() {
6653			return this.getMeta().yAxisID;
6654		},
6655
6656		/**
6657		 * @private
6658		 */
6659		getIndexScaleId: function() {
6660			return this.getMeta().xAxisID;
6661		},
6662
6663		/**
6664		 * @private
6665		 */
6666		getValueScale: function() {
6667			return this.getScaleForId(this.getValueScaleId());
6668		},
6669
6670		/**
6671		 * @private
6672		 */
6673		getIndexScale: function() {
6674			return this.getScaleForId(this.getIndexScaleId());
6675		},
6676
6677		/**
6678		 * Returns the stacks based on groups and bar visibility.
6679		 * @param {Number} [last] - The dataset index
6680		 * @returns {Array} The stack list
6681		 * @private
6682		 */
6683		_getStacks: function(last) {
6684			var me = this;
6685			var chart = me.chart;
6686			var scale = me.getIndexScale();
6687			var stacked = scale.options.stacked;
6688			var ilen = last === undefined ? chart.data.datasets.length : last + 1;
6689			var stacks = [];
6690			var i, meta;
6691
6692			for (i = 0; i < ilen; ++i) {
6693				meta = chart.getDatasetMeta(i);
6694				if (meta.bar && chart.isDatasetVisible(i) &&
6695					(stacked === false ||
6696					(stacked === true && stacks.indexOf(meta.stack) === -1) ||
6697					(stacked === undefined && (meta.stack === undefined || stacks.indexOf(meta.stack) === -1)))) {
6698					stacks.push(meta.stack);
6699				}
6700			}
6701
6702			return stacks;
6703		},
6704
6705		/**
6706		 * Returns the effective number of stacks based on groups and bar visibility.
6707		 * @private
6708		 */
6709		getStackCount: function() {
6710			return this._getStacks().length;
6711		},
6712
6713		/**
6714		 * Returns the stack index for the given dataset based on groups and bar visibility.
6715		 * @param {Number} [datasetIndex] - The dataset index
6716		 * @param {String} [name] - The stack name to find
6717		 * @returns {Number} The stack index
6718		 * @private
6719		 */
6720		getStackIndex: function(datasetIndex, name) {
6721			var stacks = this._getStacks(datasetIndex);
6722			var index = (name !== undefined)
6723				? stacks.indexOf(name)
6724				: -1; // indexOf returns -1 if element is not present
6725
6726			return (index === -1)
6727				? stacks.length - 1
6728				: index;
6729		},
6730
6731		/**
6732		 * @private
6733		 */
6734		getRuler: function() {
6735			var me = this;
6736			var scale = me.getIndexScale();
6737			var stackCount = me.getStackCount();
6738			var datasetIndex = me.index;
6739			var isHorizontal = scale.isHorizontal();
6740			var start = isHorizontal ? scale.left : scale.top;
6741			var end = start + (isHorizontal ? scale.width : scale.height);
6742			var pixels = [];
6743			var i, ilen, min;
6744
6745			for (i = 0, ilen = me.getMeta().data.length; i < ilen; ++i) {
6746				pixels.push(scale.getPixelForValue(null, i, datasetIndex));
6747			}
6748
6749			min = helpers.isNullOrUndef(scale.options.barThickness)
6750				? computeMinSampleSize(scale, pixels)
6751				: -1;
6752
6753			return {
6754				min: min,
6755				pixels: pixels,
6756				start: start,
6757				end: end,
6758				stackCount: stackCount,
6759				scale: scale
6760			};
6761		},
6762
6763		/**
6764		 * Note: pixel values are not clamped to the scale area.
6765		 * @private
6766		 */
6767		calculateBarValuePixels: function(datasetIndex, index) {
6768			var me = this;
6769			var chart = me.chart;
6770			var meta = me.getMeta();
6771			var scale = me.getValueScale();
6772			var datasets = chart.data.datasets;
6773			var value = scale.getRightValue(datasets[datasetIndex].data[index]);
6774			var stacked = scale.options.stacked;
6775			var stack = meta.stack;
6776			var start = 0;
6777			var i, imeta, ivalue, base, head, size;
6778
6779			if (stacked || (stacked === undefined && stack !== undefined)) {
6780				for (i = 0; i < datasetIndex; ++i) {
6781					imeta = chart.getDatasetMeta(i);
6782
6783					if (imeta.bar &&
6784						imeta.stack === stack &&
6785						imeta.controller.getValueScaleId() === scale.id &&
6786						chart.isDatasetVisible(i)) {
6787
6788						ivalue = scale.getRightValue(datasets[i].data[index]);
6789						if ((value < 0 && ivalue < 0) || (value >= 0 && ivalue > 0)) {
6790							start += ivalue;
6791						}
6792					}
6793				}
6794			}
6795
6796			base = scale.getPixelForValue(start);
6797			head = scale.getPixelForValue(start + value);
6798			size = (head - base) / 2;
6799
6800			return {
6801				size: size,
6802				base: base,
6803				head: head,
6804				center: head + size / 2
6805			};
6806		},
6807
6808		/**
6809		 * @private
6810		 */
6811		calculateBarIndexPixels: function(datasetIndex, index, ruler) {
6812			var me = this;
6813			var options = ruler.scale.options;
6814			var range = options.barThickness === 'flex'
6815				? computeFlexCategoryTraits(index, ruler, options)
6816				: computeFitCategoryTraits(index, ruler, options);
6817
6818			var stackIndex = me.getStackIndex(datasetIndex, me.getMeta().stack);
6819			var center = range.start + (range.chunk * stackIndex) + (range.chunk / 2);
6820			var size = Math.min(
6821				helpers.valueOrDefault(options.maxBarThickness, Infinity),
6822				range.chunk * range.ratio);
6823
6824			return {
6825				base: center - size / 2,
6826				head: center + size / 2,
6827				center: center,
6828				size: size
6829			};
6830		},
6831
6832		draw: function() {
6833			var me = this;
6834			var chart = me.chart;
6835			var scale = me.getValueScale();
6836			var rects = me.getMeta().data;
6837			var dataset = me.getDataset();
6838			var ilen = rects.length;
6839			var i = 0;
6840
6841			helpers.canvas.clipArea(chart.ctx, chart.chartArea);
6842
6843			for (; i < ilen; ++i) {
6844				if (!isNaN(scale.getRightValue(dataset.data[i]))) {
6845					rects[i].draw();
6846				}
6847			}
6848
6849			helpers.canvas.unclipArea(chart.ctx);
6850		},
6851	});
6852
6853	Chart.controllers.horizontalBar = Chart.controllers.bar.extend({
6854		/**
6855		 * @private
6856		 */
6857		getValueScaleId: function() {
6858			return this.getMeta().xAxisID;
6859		},
6860
6861		/**
6862		 * @private
6863		 */
6864		getIndexScaleId: function() {
6865			return this.getMeta().yAxisID;
6866		}
6867	});
6868};
6869
6870},{"26":26,"41":41,"46":46}],16:[function(require,module,exports){
6871'use strict';
6872
6873var defaults = require(26);
6874var elements = require(41);
6875var helpers = require(46);
6876
6877defaults._set('bubble', {
6878	hover: {
6879		mode: 'single'
6880	},
6881
6882	scales: {
6883		xAxes: [{
6884			type: 'linear', // bubble should probably use a linear scale by default
6885			position: 'bottom',
6886			id: 'x-axis-0' // need an ID so datasets can reference the scale
6887		}],
6888		yAxes: [{
6889			type: 'linear',
6890			position: 'left',
6891			id: 'y-axis-0'
6892		}]
6893	},
6894
6895	tooltips: {
6896		callbacks: {
6897			title: function() {
6898				// Title doesn't make sense for scatter since we format the data as a point
6899				return '';
6900			},
6901			label: function(item, data) {
6902				var datasetLabel = data.datasets[item.datasetIndex].label || '';
6903				var dataPoint = data.datasets[item.datasetIndex].data[item.index];
6904				return datasetLabel + ': (' + item.xLabel + ', ' + item.yLabel + ', ' + dataPoint.r + ')';
6905			}
6906		}
6907	}
6908});
6909
6910
6911module.exports = function(Chart) {
6912
6913	Chart.controllers.bubble = Chart.DatasetController.extend({
6914		/**
6915		 * @protected
6916		 */
6917		dataElementType: elements.Point,
6918
6919		/**
6920		 * @protected
6921		 */
6922		update: function(reset) {
6923			var me = this;
6924			var meta = me.getMeta();
6925			var points = meta.data;
6926
6927			// Update Points
6928			helpers.each(points, function(point, index) {
6929				me.updateElement(point, index, reset);
6930			});
6931		},
6932
6933		/**
6934		 * @protected
6935		 */
6936		updateElement: function(point, index, reset) {
6937			var me = this;
6938			var meta = me.getMeta();
6939			var custom = point.custom || {};
6940			var xScale = me.getScaleForId(meta.xAxisID);
6941			var yScale = me.getScaleForId(meta.yAxisID);
6942			var options = me._resolveElementOptions(point, index);
6943			var data = me.getDataset().data[index];
6944			var dsIndex = me.index;
6945
6946			var x = reset ? xScale.getPixelForDecimal(0.5) : xScale.getPixelForValue(typeof data === 'object' ? data : NaN, index, dsIndex);
6947			var y = reset ? yScale.getBasePixel() : yScale.getPixelForValue(data, index, dsIndex);
6948
6949			point._xScale = xScale;
6950			point._yScale = yScale;
6951			point._options = options;
6952			point._datasetIndex = dsIndex;
6953			point._index = index;
6954			point._model = {
6955				backgroundColor: options.backgroundColor,
6956				borderColor: options.borderColor,
6957				borderWidth: options.borderWidth,
6958				hitRadius: options.hitRadius,
6959				pointStyle: options.pointStyle,
6960				rotation: options.rotation,
6961				radius: reset ? 0 : options.radius,
6962				skip: custom.skip || isNaN(x) || isNaN(y),
6963				x: x,
6964				y: y,
6965			};
6966
6967			point.pivot();
6968		},
6969
6970		/**
6971		 * @protected
6972		 */
6973		setHoverStyle: function(point) {
6974			var model = point._model;
6975			var options = point._options;
6976			point.$previousStyle = {
6977				backgroundColor: model.backgroundColor,
6978				borderColor: model.borderColor,
6979				borderWidth: model.borderWidth,
6980				radius: model.radius
6981			};
6982			model.backgroundColor = helpers.valueOrDefault(options.hoverBackgroundColor, helpers.getHoverColor(options.backgroundColor));
6983			model.borderColor = helpers.valueOrDefault(options.hoverBorderColor, helpers.getHoverColor(options.borderColor));
6984			model.borderWidth = helpers.valueOrDefault(options.hoverBorderWidth, options.borderWidth);
6985			model.radius = options.radius + options.hoverRadius;
6986		},
6987
6988		/**
6989		 * @private
6990		 */
6991		_resolveElementOptions: function(point, index) {
6992			var me = this;
6993			var chart = me.chart;
6994			var datasets = chart.data.datasets;
6995			var dataset = datasets[me.index];
6996			var custom = point.custom || {};
6997			var options = chart.options.elements.point;
6998			var resolve = helpers.options.resolve;
6999			var data = dataset.data[index];
7000			var values = {};
7001			var i, ilen, key;
7002
7003			// Scriptable options
7004			var context = {
7005				chart: chart,
7006				dataIndex: index,
7007				dataset: dataset,
7008				datasetIndex: me.index
7009			};
7010
7011			var keys = [
7012				'backgroundColor',
7013				'borderColor',
7014				'borderWidth',
7015				'hoverBackgroundColor',
7016				'hoverBorderColor',
7017				'hoverBorderWidth',
7018				'hoverRadius',
7019				'hitRadius',
7020				'pointStyle',
7021				'rotation'
7022			];
7023
7024			for (i = 0, ilen = keys.length; i < ilen; ++i) {
7025				key = keys[i];
7026				values[key] = resolve([
7027					custom[key],
7028					dataset[key],
7029					options[key]
7030				], context, index);
7031			}
7032
7033			// Custom radius resolution
7034			values.radius = resolve([
7035				custom.radius,
7036				data ? data.r : undefined,
7037				dataset.radius,
7038				options.radius
7039			], context, index);
7040			return values;
7041		}
7042	});
7043};
7044
7045},{"26":26,"41":41,"46":46}],17:[function(require,module,exports){
7046'use strict';
7047
7048var defaults = require(26);
7049var elements = require(41);
7050var helpers = require(46);
7051
7052defaults._set('doughnut', {
7053	animation: {
7054		// Boolean - Whether we animate the rotation of the Doughnut
7055		animateRotate: true,
7056		// Boolean - Whether we animate scaling the Doughnut from the centre
7057		animateScale: false
7058	},
7059	hover: {
7060		mode: 'single'
7061	},
7062	legendCallback: function(chart) {
7063		var text = [];
7064		text.push('<ul class="' + chart.id + '-legend">');
7065
7066		var data = chart.data;
7067		var datasets = data.datasets;
7068		var labels = data.labels;
7069
7070		if (datasets.length) {
7071			for (var i = 0; i < datasets[0].data.length; ++i) {
7072				text.push('<li><span style="background-color:' + datasets[0].backgroundColor[i] + '"></span>');
7073				if (labels[i]) {
7074					text.push(labels[i]);
7075				}
7076				text.push('</li>');
7077			}
7078		}
7079
7080		text.push('</ul>');
7081		return text.join('');
7082	},
7083	legend: {
7084		labels: {
7085			generateLabels: function(chart) {
7086				var data = chart.data;
7087				if (data.labels.length && data.datasets.length) {
7088					return data.labels.map(function(label, i) {
7089						var meta = chart.getDatasetMeta(0);
7090						var ds = data.datasets[0];
7091						var arc = meta.data[i];
7092						var custom = arc && arc.custom || {};
7093						var valueAtIndexOrDefault = helpers.valueAtIndexOrDefault;
7094						var arcOpts = chart.options.elements.arc;
7095						var fill = custom.backgroundColor ? custom.backgroundColor : valueAtIndexOrDefault(ds.backgroundColor, i, arcOpts.backgroundColor);
7096						var stroke = custom.borderColor ? custom.borderColor : valueAtIndexOrDefault(ds.borderColor, i, arcOpts.borderColor);
7097						var bw = custom.borderWidth ? custom.borderWidth : valueAtIndexOrDefault(ds.borderWidth, i, arcOpts.borderWidth);
7098
7099						return {
7100							text: label,
7101							fillStyle: fill,
7102							strokeStyle: stroke,
7103							lineWidth: bw,
7104							hidden: isNaN(ds.data[i]) || meta.data[i].hidden,
7105
7106							// Extra data used for toggling the correct item
7107							index: i
7108						};
7109					});
7110				}
7111				return [];
7112			}
7113		},
7114
7115		onClick: function(e, legendItem) {
7116			var index = legendItem.index;
7117			var chart = this.chart;
7118			var i, ilen, meta;
7119
7120			for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
7121				meta = chart.getDatasetMeta(i);
7122				// toggle visibility of index if exists
7123				if (meta.data[index]) {
7124					meta.data[index].hidden = !meta.data[index].hidden;
7125				}
7126			}
7127
7128			chart.update();
7129		}
7130	},
7131
7132	// The percentage of the chart that we cut out of the middle.
7133	cutoutPercentage: 50,
7134
7135	// The rotation of the chart, where the first data arc begins.
7136	rotation: Math.PI * -0.5,
7137
7138	// The total circumference of the chart.
7139	circumference: Math.PI * 2.0,
7140
7141	// Need to override these to give a nice default
7142	tooltips: {
7143		callbacks: {
7144			title: function() {
7145				return '';
7146			},
7147			label: function(tooltipItem, data) {
7148				var dataLabel = data.labels[tooltipItem.index];
7149				var value = ': ' + data.datasets[tooltipItem.datasetIndex].data[tooltipItem.index];
7150
7151				if (helpers.isArray(dataLabel)) {
7152					// show value on first line of multiline label
7153					// need to clone because we are changing the value
7154					dataLabel = dataLabel.slice();
7155					dataLabel[0] += value;
7156				} else {
7157					dataLabel += value;
7158				}
7159
7160				return dataLabel;
7161			}
7162		}
7163	}
7164});
7165
7166defaults._set('pie', helpers.clone(defaults.doughnut));
7167defaults._set('pie', {
7168	cutoutPercentage: 0
7169});
7170
7171module.exports = function(Chart) {
7172
7173	Chart.controllers.doughnut = Chart.controllers.pie = Chart.DatasetController.extend({
7174
7175		dataElementType: elements.Arc,
7176
7177		linkScales: helpers.noop,
7178
7179		// Get index of the dataset in relation to the visible datasets. This allows determining the inner and outer radius correctly
7180		getRingIndex: function(datasetIndex) {
7181			var ringIndex = 0;
7182
7183			for (var j = 0; j < datasetIndex; ++j) {
7184				if (this.chart.isDatasetVisible(j)) {
7185					++ringIndex;
7186				}
7187			}
7188
7189			return ringIndex;
7190		},
7191
7192		update: function(reset) {
7193			var me = this;
7194			var chart = me.chart;
7195			var chartArea = chart.chartArea;
7196			var opts = chart.options;
7197			var arcOpts = opts.elements.arc;
7198			var availableWidth = chartArea.right - chartArea.left - arcOpts.borderWidth;
7199			var availableHeight = chartArea.bottom - chartArea.top - arcOpts.borderWidth;
7200			var minSize = Math.min(availableWidth, availableHeight);
7201			var offset = {x: 0, y: 0};
7202			var meta = me.getMeta();
7203			var cutoutPercentage = opts.cutoutPercentage;
7204			var circumference = opts.circumference;
7205
7206			// If the chart's circumference isn't a full circle, calculate minSize as a ratio of the width/height of the arc
7207			if (circumference < Math.PI * 2.0) {
7208				var startAngle = opts.rotation % (Math.PI * 2.0);
7209				startAngle += Math.PI * 2.0 * (startAngle >= Math.PI ? -1 : startAngle < -Math.PI ? 1 : 0);
7210				var endAngle = startAngle + circumference;
7211				var start = {x: Math.cos(startAngle), y: Math.sin(startAngle)};
7212				var end = {x: Math.cos(endAngle), y: Math.sin(endAngle)};
7213				var contains0 = (startAngle <= 0 && endAngle >= 0) || (startAngle <= Math.PI * 2.0 && Math.PI * 2.0 <= endAngle);
7214				var contains90 = (startAngle <= Math.PI * 0.5 && Math.PI * 0.5 <= endAngle) || (startAngle <= Math.PI * 2.5 && Math.PI * 2.5 <= endAngle);
7215				var contains180 = (startAngle <= -Math.PI && -Math.PI <= endAngle) || (startAngle <= Math.PI && Math.PI <= endAngle);
7216				var contains270 = (startAngle <= -Math.PI * 0.5 && -Math.PI * 0.5 <= endAngle) || (startAngle <= Math.PI * 1.5 && Math.PI * 1.5 <= endAngle);
7217				var cutout = cutoutPercentage / 100.0;
7218				var min = {x: contains180 ? -1 : Math.min(start.x * (start.x < 0 ? 1 : cutout), end.x * (end.x < 0 ? 1 : cutout)), y: contains270 ? -1 : Math.min(start.y * (start.y < 0 ? 1 : cutout), end.y * (end.y < 0 ? 1 : cutout))};
7219				var max = {x: contains0 ? 1 : Math.max(start.x * (start.x > 0 ? 1 : cutout), end.x * (end.x > 0 ? 1 : cutout)), y: contains90 ? 1 : Math.max(start.y * (start.y > 0 ? 1 : cutout), end.y * (end.y > 0 ? 1 : cutout))};
7220				var size = {width: (max.x - min.x) * 0.5, height: (max.y - min.y) * 0.5};
7221				minSize = Math.min(availableWidth / size.width, availableHeight / size.height);
7222				offset = {x: (max.x + min.x) * -0.5, y: (max.y + min.y) * -0.5};
7223			}
7224
7225			chart.borderWidth = me.getMaxBorderWidth(meta.data);
7226			chart.outerRadius = Math.max((minSize - chart.borderWidth) / 2, 0);
7227			chart.innerRadius = Math.max(cutoutPercentage ? (chart.outerRadius / 100) * (cutoutPercentage) : 0, 0);
7228			chart.radiusLength = (chart.outerRadius - chart.innerRadius) / chart.getVisibleDatasetCount();
7229			chart.offsetX = offset.x * chart.outerRadius;
7230			chart.offsetY = offset.y * chart.outerRadius;
7231
7232			meta.total = me.calculateTotal();
7233
7234			me.outerRadius = chart.outerRadius - (chart.radiusLength * me.getRingIndex(me.index));
7235			me.innerRadius = Math.max(me.outerRadius - chart.radiusLength, 0);
7236
7237			helpers.each(meta.data, function(arc, index) {
7238				me.updateElement(arc, index, reset);
7239			});
7240		},
7241
7242		updateElement: function(arc, index, reset) {
7243			var me = this;
7244			var chart = me.chart;
7245			var chartArea = chart.chartArea;
7246			var opts = chart.options;
7247			var animationOpts = opts.animation;
7248			var centerX = (chartArea.left + chartArea.right) / 2;
7249			var centerY = (chartArea.top + chartArea.bottom) / 2;
7250			var startAngle = opts.rotation; // non reset case handled later
7251			var endAngle = opts.rotation; // non reset case handled later
7252			var dataset = me.getDataset();
7253			var circumference = reset && animationOpts.animateRotate ? 0 : arc.hidden ? 0 : me.calculateCircumference(dataset.data[index]) * (opts.circumference / (2.0 * Math.PI));
7254			var innerRadius = reset && animationOpts.animateScale ? 0 : me.innerRadius;
7255			var outerRadius = reset && animationOpts.animateScale ? 0 : me.outerRadius;
7256			var valueAtIndexOrDefault = helpers.valueAtIndexOrDefault;
7257
7258			helpers.extend(arc, {
7259				// Utility
7260				_datasetIndex: me.index,
7261				_index: index,
7262
7263				// Desired view properties
7264				_model: {
7265					x: centerX + chart.offsetX,
7266					y: centerY + chart.offsetY,
7267					startAngle: startAngle,
7268					endAngle: endAngle,
7269					circumference: circumference,
7270					outerRadius: outerRadius,
7271					innerRadius: innerRadius,
7272					label: valueAtIndexOrDefault(dataset.label, index, chart.data.labels[index])
7273				}
7274			});
7275
7276			var model = arc._model;
7277
7278			// Resets the visual styles
7279			var custom = arc.custom || {};
7280			var valueOrDefault = helpers.valueAtIndexOrDefault;
7281			var elementOpts = this.chart.options.elements.arc;
7282			model.backgroundColor = custom.backgroundColor ? custom.backgroundColor : valueOrDefault(dataset.backgroundColor, index, elementOpts.backgroundColor);
7283			model.borderColor = custom.borderColor ? custom.borderColor : valueOrDefault(dataset.borderColor, index, elementOpts.borderColor);
7284			model.borderWidth = custom.borderWidth ? custom.borderWidth : valueOrDefault(dataset.borderWidth, index, elementOpts.borderWidth);
7285
7286			// Set correct angles if not resetting
7287			if (!reset || !animationOpts.animateRotate) {
7288				if (index === 0) {
7289					model.startAngle = opts.rotation;
7290				} else {
7291					model.startAngle = me.getMeta().data[index - 1]._model.endAngle;
7292				}
7293
7294				model.endAngle = model.startAngle + model.circumference;
7295			}
7296
7297			arc.pivot();
7298		},
7299
7300		calculateTotal: function() {
7301			var dataset = this.getDataset();
7302			var meta = this.getMeta();
7303			var total = 0;
7304			var value;
7305
7306			helpers.each(meta.data, function(element, index) {
7307				value = dataset.data[index];
7308				if (!isNaN(value) && !element.hidden) {
7309					total += Math.abs(value);
7310				}
7311			});
7312
7313			/* if (total === 0) {
7314				total = NaN;
7315			}*/
7316
7317			return total;
7318		},
7319
7320		calculateCircumference: function(value) {
7321			var total = this.getMeta().total;
7322			if (total > 0 && !isNaN(value)) {
7323				return (Math.PI * 2.0) * (Math.abs(value) / total);
7324			}
7325			return 0;
7326		},
7327
7328		// gets the max border or hover width to properly scale pie charts
7329		getMaxBorderWidth: function(arcs) {
7330			var max = 0;
7331			var index = this.index;
7332			var length = arcs.length;
7333			var borderWidth;
7334			var hoverWidth;
7335
7336			for (var i = 0; i < length; i++) {
7337				borderWidth = arcs[i]._model ? arcs[i]._model.borderWidth : 0;
7338				hoverWidth = arcs[i]._chart ? arcs[i]._chart.config.data.datasets[index].hoverBorderWidth : 0;
7339
7340				max = borderWidth > max ? borderWidth : max;
7341				max = hoverWidth > max ? hoverWidth : max;
7342			}
7343			return max;
7344		}
7345	});
7346};
7347
7348},{"26":26,"41":41,"46":46}],18:[function(require,module,exports){
7349'use strict';
7350
7351var defaults = require(26);
7352var elements = require(41);
7353var helpers = require(46);
7354
7355defaults._set('line', {
7356	showLines: true,
7357	spanGaps: false,
7358
7359	hover: {
7360		mode: 'label'
7361	},
7362
7363	scales: {
7364		xAxes: [{
7365			type: 'category',
7366			id: 'x-axis-0'
7367		}],
7368		yAxes: [{
7369			type: 'linear',
7370			id: 'y-axis-0'
7371		}]
7372	}
7373});
7374
7375module.exports = function(Chart) {
7376
7377	function lineEnabled(dataset, options) {
7378		return helpers.valueOrDefault(dataset.showLine, options.showLines);
7379	}
7380
7381	Chart.controllers.line = Chart.DatasetController.extend({
7382
7383		datasetElementType: elements.Line,
7384
7385		dataElementType: elements.Point,
7386
7387		update: function(reset) {
7388			var me = this;
7389			var meta = me.getMeta();
7390			var line = meta.dataset;
7391			var points = meta.data || [];
7392			var options = me.chart.options;
7393			var lineElementOptions = options.elements.line;
7394			var scale = me.getScaleForId(meta.yAxisID);
7395			var i, ilen, custom;
7396			var dataset = me.getDataset();
7397			var showLine = lineEnabled(dataset, options);
7398
7399			// Update Line
7400			if (showLine) {
7401				custom = line.custom || {};
7402
7403				// Compatibility: If the properties are defined with only the old name, use those values
7404				if ((dataset.tension !== undefined) && (dataset.lineTension === undefined)) {
7405					dataset.lineTension = dataset.tension;
7406				}
7407
7408				// Utility
7409				line._scale = scale;
7410				line._datasetIndex = me.index;
7411				// Data
7412				line._children = points;
7413				// Model
7414				line._model = {
7415					// Appearance
7416					// The default behavior of lines is to break at null values, according
7417					// to https://github.com/chartjs/Chart.js/issues/2435#issuecomment-216718158
7418					// This option gives lines the ability to span gaps
7419					spanGaps: dataset.spanGaps ? dataset.spanGaps : options.spanGaps,
7420					tension: custom.tension ? custom.tension : helpers.valueOrDefault(dataset.lineTension, lineElementOptions.tension),
7421					backgroundColor: custom.backgroundColor ? custom.backgroundColor : (dataset.backgroundColor || lineElementOptions.backgroundColor),
7422					borderWidth: custom.borderWidth ? custom.borderWidth : (dataset.borderWidth || lineElementOptions.borderWidth),
7423					borderColor: custom.borderColor ? custom.borderColor : (dataset.borderColor || lineElementOptions.borderColor),
7424					borderCapStyle: custom.borderCapStyle ? custom.borderCapStyle : (dataset.borderCapStyle || lineElementOptions.borderCapStyle),
7425					borderDash: custom.borderDash ? custom.borderDash : (dataset.borderDash || lineElementOptions.borderDash),
7426					borderDashOffset: custom.borderDashOffset ? custom.borderDashOffset : (dataset.borderDashOffset || lineElementOptions.borderDashOffset),
7427					borderJoinStyle: custom.borderJoinStyle ? custom.borderJoinStyle : (dataset.borderJoinStyle || lineElementOptions.borderJoinStyle),
7428					fill: custom.fill ? custom.fill : (dataset.fill !== undefined ? dataset.fill : lineElementOptions.fill),
7429					steppedLine: custom.steppedLine ? custom.steppedLine : helpers.valueOrDefault(dataset.steppedLine, lineElementOptions.stepped),
7430					cubicInterpolationMode: custom.cubicInterpolationMode ? custom.cubicInterpolationMode : helpers.valueOrDefault(dataset.cubicInterpolationMode, lineElementOptions.cubicInterpolationMode),
7431				};
7432
7433				line.pivot();
7434			}
7435
7436			// Update Points
7437			for (i = 0, ilen = points.length; i < ilen; ++i) {
7438				me.updateElement(points[i], i, reset);
7439			}
7440
7441			if (showLine && line._model.tension !== 0) {
7442				me.updateBezierControlPoints();
7443			}
7444
7445			// Now pivot the point for animation
7446			for (i = 0, ilen = points.length; i < ilen; ++i) {
7447				points[i].pivot();
7448			}
7449		},
7450
7451		getPointBackgroundColor: function(point, index) {
7452			var backgroundColor = this.chart.options.elements.point.backgroundColor;
7453			var dataset = this.getDataset();
7454			var custom = point.custom || {};
7455
7456			if (custom.backgroundColor) {
7457				backgroundColor = custom.backgroundColor;
7458			}
7458 else if (dataset.pointBackgroundColor) {
7459				backgroundColor = helpers.valueAtIndexOrDefault(dataset.pointBackgroundColor, index, backgroundColor);
7460			} else if (dataset.backgroundColor) {
7461				backgroundColor = dataset.backgroundColor;
7462			}
7463
7464			return backgroundColor;
7465		},
7466
7467		getPointBorderColor: function(point, index) {
7468			var borderColor = this.chart.options.elements.point.borderColor;
7469			var dataset = this.getDataset();
7470			var custom = point.custom || {};
7471
7472			if (custom.borderColor) {
7473				borderColor = custom.borderColor;
7474			} else if (dataset.pointBorderColor) {
7475				borderColor = helpers.valueAtIndexOrDefault(dataset.pointBorderColor, index, borderColor);
7476			} else if (dataset.borderColor) {
7477				borderColor = dataset.borderColor;
7478			}
7479
7480			return borderColor;
7481		},
7482
7483		getPointBorderWidth: function(point, index) {
7484			var borderWidth = this.chart.options.elements.point.borderWidth;
7485			var dataset = this.getDataset();
7486			var custom = point.custom || {};
7487
7488			if (!isNaN(custom.borderWidth)) {
7489				borderWidth = custom.borderWidth;
7490			} else if (!isNaN(dataset.pointBorderWidth) || helpers.isArray(dataset.pointBorderWidth)) {
7491				borderWidth = helpers.valueAtIndexOrDefault(dataset.pointBorderWidth, index, borderWidth);
7492			} else if (!isNaN(dataset.borderWidth)) {
7493				borderWidth = dataset.borderWidth;
7494			}
7495
7496			return borderWidth;
7497		},
7498
7499		getPointRotation: function(point, index) {
7500			var pointRotation = this.chart.options.elements.point.rotation;
7501			var dataset = this.getDataset();
7502			var custom = point.custom || {};
7503
7504			if (!isNaN(custom.rotation)) {
7505				pointRotation = custom.rotation;
7506			} else if (!isNaN(dataset.pointRotation) || helpers.isArray(dataset.pointRotation)) {
7507				pointRotation = helpers.valueAtIndexOrDefault(dataset.pointRotation, index, pointRotation);
7508			}
7509			return pointRotation;
7510		},
7511
7512		updateElement: function(point, index, reset) {
7513			var me = this;
7514			var meta = me.getMeta();
7515			var custom = point.custom || {};
7516			var dataset = me.getDataset();
7517			var datasetIndex = me.index;
7518			var value = dataset.data[index];
7519			var yScale = me.getScaleForId(meta.yAxisID);
7520			var xScale = me.getScaleForId(meta.xAxisID);
7521			var pointOptions = me.chart.options.elements.point;
7522			var x, y;
7523
7524			// Compatibility: If the properties are defined with only the old name, use those values
7525			if ((dataset.radius !== undefined) && (dataset.pointRadius === undefined)) {
7526				dataset.pointRadius = dataset.radius;
7527			}
7528			if ((dataset.hitRadius !== undefined) && (dataset.pointHitRadius === undefined)) {
7529				dataset.pointHitRadius = dataset.hitRadius;
7530			}
7531
7532			x = xScale.getPixelForValue(typeof value === 'object' ? value : NaN, index, datasetIndex);
7533			y = reset ? yScale.getBasePixel() : me.calculatePointY(value, index, datasetIndex);
7534
7535			// Utility
7536			point._xScale = xScale;
7537			point._yScale = yScale;
7538			point._datasetIndex = datasetIndex;
7539			point._index = index;
7540
7541			// Desired view properties
7542			point._model = {
7543				x: x,
7544				y: y,
7545				skip: custom.skip || isNaN(x) || isNaN(y),
7546				// Appearance
7547				radius: custom.radius || helpers.valueAtIndexOrDefault(dataset.pointRadius, index, pointOptions.radius),
7548				pointStyle: custom.pointStyle || helpers.valueAtIndexOrDefault(dataset.pointStyle, index, pointOptions.pointStyle),
7549				rotation: me.getPointRotation(point, index),
7550				backgroundColor: me.getPointBackgroundColor(point, index),
7551				borderColor: me.getPointBorderColor(point, index),
7552				borderWidth: me.getPointBorderWidth(point, index),
7553				tension: meta.dataset._model ? meta.dataset._model.tension : 0,
7554				steppedLine: meta.dataset._model ? meta.dataset._model.steppedLine : false,
7555				// Tooltip
7556				hitRadius: custom.hitRadius || helpers.valueAtIndexOrDefault(dataset.pointHitRadius, index, pointOptions.hitRadius)
7557			};
7558		},
7559
7560		calculatePointY: function(value, index, datasetIndex) {
7561			var me = this;
7562			var chart = me.chart;
7563			var meta = me.getMeta();
7564			var yScale = me.getScaleForId(meta.yAxisID);
7565			var sumPos = 0;
7566			var sumNeg = 0;
7567			var i, ds, dsMeta;
7568
7569			if (yScale.options.stacked) {
7570				for (i = 0; i < datasetIndex; i++) {
7571					ds = chart.data.datasets[i];
7572					dsMeta = chart.getDatasetMeta(i);
7573					if (dsMeta.type === 'line' && dsMeta.yAxisID === yScale.id && chart.isDatasetVisible(i)) {
7574						var stackedRightValue = Number(yScale.getRightValue(ds.data[index]));
7575						if (stackedRightValue < 0) {
7576							sumNeg += stackedRightValue || 0;
7577						} else {
7578							sumPos += stackedRightValue || 0;
7579						}
7580					}
7581				}
7582
7583				var rightValue = Number(yScale.getRightValue(value));
7584				if (rightValue < 0) {
7585					return yScale.getPixelForValue(sumNeg + rightValue);
7586				}
7587				return yScale.getPixelForValue(sumPos + rightValue);
7588			}
7589
7590			return yScale.getPixelForValue(value);
7591		},
7592
7593		updateBezierControlPoints: function() {
7594			var me = this;
7595			var meta = me.getMeta();
7596			var area = me.chart.chartArea;
7597			var points = (meta.data || []);
7598			var i, ilen, point, model, controlPoints;
7599
7600			// Only consider points that are drawn in case the spanGaps option is used
7601			if (meta.dataset._model.spanGaps) {
7602				points = points.filter(function(pt) {
7603					return !pt._model.skip;
7604				});
7605			}
7606
7607			function capControlPoint(pt, min, max) {
7608				return Math.max(Math.min(pt, max), min);
7609			}
7610
7611			if (meta.dataset._model.cubicInterpolationMode === 'monotone') {
7612				helpers.splineCurveMonotone(points);
7613			} else {
7614				for (i = 0, ilen = points.length; i < ilen; ++i) {
7615					point = points[i];
7616					model = point._model;
7617					controlPoints = helpers.splineCurve(
7618						helpers.previousItem(points, i)._model,
7619						model,
7620						helpers.nextItem(points, i)._model,
7621						meta.dataset._model.tension
7622					);
7623					model.controlPointPreviousX = controlPoints.previous.x;
7624					model.controlPointPreviousY = controlPoints.previous.y;
7625					model.controlPointNextX = controlPoints.next.x;
7626					model.controlPointNextY = controlPoints.next.y;
7627				}
7628			}
7629
7630			if (me.chart.options.elements.line.capBezierPoints) {
7631				for (i = 0, ilen = points.length; i < ilen; ++i) {
7632					model = points[i]._model;
7633					model.controlPointPreviousX = capControlPoint(model.controlPointPreviousX, area.left, area.right);
7634					model.controlPointPreviousY = capControlPoint(model.controlPointPreviousY, area.top, area.bottom);
7635					model.controlPointNextX = capControlPoint(model.controlPointNextX, area.left, area.right);
7636					model.controlPointNextY = capControlPoint(model.controlPointNextY, area.top, area.bottom);
7637				}
7638			}
7639		},
7640
7641		draw: function() {
7642			var me = this;
7643			var chart = me.chart;
7644			var meta = me.getMeta();
7645			var points = meta.data || [];
7646			var area = chart.chartArea;
7647			var ilen = points.length;
7648			var halfBorderWidth;
7649			var i = 0;
7650
7651			if (lineEnabled(me.getDataset(), chart.options)) {
7652				halfBorderWidth = (meta.dataset._model.borderWidth || 0) / 2;
7653
7654				helpers.canvas.clipArea(chart.ctx, {
7655					left: area.left,
7656					right: area.right,
7657					top: area.top - halfBorderWidth,
7658					bottom: area.bottom + halfBorderWidth
7659				});
7660
7661				meta.dataset.draw();
7662
7663				helpers.canvas.unclipArea(chart.ctx);
7664			}
7665
7666			// Draw the points
7667			for (; i < ilen; ++i) {
7668				points[i].draw(area);
7669			}
7670		},
7671
7672		setHoverStyle: function(element) {
7673			// Point
7674			var dataset = this.chart.data.datasets[element._datasetIndex];
7675			var index = element._index;
7676			var custom = element.custom || {};
7677			var model = element._model;
7678
7679			element.$previousStyle = {
7680				backgroundColor: model.backgroundColor,
7681				borderColor: model.borderColor,
7682				borderWidth: model.borderWidth,
7683				radius: model.radius
7684			};
7685
7686			model.backgroundColor = custom.hoverBackgroundColor || helpers.valueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.getHoverColor(model.backgroundColor));
7687			model.borderColor = custom.hoverBorderColor || helpers.valueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.getHoverColor(model.borderColor));
7688			model.borderWidth = custom.hoverBorderWidth || helpers.valueAtIndexOrDefault(dataset.pointHoverBorderWidth, index, model.borderWidth);
7689			model.radius = custom.hoverRadius || helpers.valueAtIndexOrDefault(dataset.pointHoverRadius, index, this.chart.options.elements.point.hoverRadius);
7690		},
7691	});
7692};
7693
7694},{"26":26,"41":41,"46":46}],19:[function(require,module,exports){
7695'use strict';
7696
7697var defaults = require(26);
7698var elements = require(41);
7699var helpers = require(46);
7700
7701defaults._set('polarArea', {
7702	scale: {
7703		type: 'radialLinear',
7704		angleLines: {
7705			display: false
7706		},
7707		gridLines: {
7708			circular: true
7709		},
7710		pointLabels: {
7711			display: false
7712		},
7713		ticks: {
7714			beginAtZero: true
7715		}
7716	},
7717
7718	// Boolean - Whether to animate the rotation of the chart
7719	animation: {
7720		animateRotate: true,
7721		animateScale: true
7722	},
7723
7724	startAngle: -0.5 * Math.PI,
7725	legendCallback: function(chart) {
7726		var text = [];
7727		text.push('<ul class="' + chart.id + '-legend">');
7728
7729		var data = chart.data;
7730		var datasets = data.datasets;
7731		var labels = data.labels;
7732
7733		if (datasets.length) {
7734			for (var i = 0; i < datasets[0].data.length; ++i) {
7735				text.push('<li><span style="background-color:' + datasets[0].backgroundColor[i] + '"></span>');
7736				if (labels[i]) {
7737					text.push(labels[i]);
7738				}
7739				text.push('</li>');
7740			}
7741		}
7742
7743		text.push('</ul>');
7744		return text.join('');
7745	},
7746	legend: {
7747		labels: {
7748			generateLabels: function(chart) {
7749				var data = chart.data;
7750				if (data.labels.length && data.datasets.length) {
7751					return data.labels.map(function(label, i) {
7752						var meta = chart.getDatasetMeta(0);
7753						var ds = data.datasets[0];
7754						var arc = meta.data[i];
7755						var custom = arc.custom || {};
7756						var valueAtIndexOrDefault = helpers.valueAtIndexOrDefault;
7757						var arcOpts = chart.options.elements.arc;
7758						var fill = custom.backgroundColor ? custom.backgroundColor : valueAtIndexOrDefault(ds.backgroundColor, i, arcOpts.backgroundColor);
7759						var stroke = custom.borderColor ? custom.borderColor : valueAtIndexOrDefault(ds.borderColor, i, arcOpts.borderColor);
7760						var bw = custom.borderWidth ? custom.borderWidth : valueAtIndexOrDefault(ds.borderWidth, i, arcOpts.borderWidth);
7761
7762						return {
7763							text: label,
7764							fillStyle: fill,
7765							strokeStyle: stroke,
7766							lineWidth: bw,
7767							hidden: isNaN(ds.data[i]) || meta.data[i].hidden,
7768
7769							// Extra data used for toggling the correct item
7770							index: i
7771						};
7772					});
7773				}
7774				return [];
7775			}
7776		},
7777
7778		onClick: function(e, legendItem) {
7779			var index = legendItem.index;
7780			var chart = this.chart;
7781			var i, ilen, meta;
7782
7783			for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
7784				meta = chart.getDatasetMeta(i);
7785				meta.data[index].hidden = !meta.data[index].hidden;
7786			}
7787
7788			chart.update();
7789		}
7790	},
7791
7792	// Need to override these to give a nice default
7793	tooltips: {
7794		callbacks: {
7795			title: function() {
7796				return '';
7797			},
7798			label: function(item, data) {
7799				return data.labels[item.index] + ': ' + item.yLabel;
7800			}
7801		}
7802	}
7803});
7804
7805module.exports = function(Chart) {
7806
7807	Chart.controllers.polarArea = Chart.DatasetController.extend({
7808
7809		dataElementType: elements.Arc,
7810
7811		linkScales: helpers.noop,
7812
7813		update: function(reset) {
7814			var me = this;
7815			var dataset = me.getDataset();
7816			var meta = me.getMeta();
7817			var start = me.chart.options.startAngle || 0;
7818			var starts = me._starts = [];
7819			var angles = me._angles = [];
7820			var i, ilen, angle;
7821
7822			me._updateRadius();
7823
7824			meta.count = me.countVisibleElements();
7825
7826			for (i = 0, ilen = dataset.data.length; i < ilen; i++) {
7827				starts[i] = start;
7828				angle = me._computeAngle(i);
7829				angles[i] = angle;
7830				start += angle;
7831			}
7832
7833			helpers.each(meta.data, function(arc, index) {
7834				me.updateElement(arc, index, reset);
7835			});
7836		},
7837
7838		/**
7839		 * @private
7840		 */
7841		_updateRadius: function() {
7842			var me = this;
7843			var chart = me.chart;
7844			var chartArea = chart.chartArea;
7845			var opts = chart.options;
7846			var arcOpts = opts.elements.arc;
7847			var minSize = Math.min(chartArea.right - chartArea.left, chartArea.bottom - chartArea.top);
7848
7849			chart.outerRadius = Math.max((minSize - arcOpts.borderWidth / 2) / 2, 0);
7850			chart.innerRadius = Math.max(opts.cutoutPercentage ? (chart.outerRadius / 100) * (opts.cutoutPercentage) : 1, 0);
7851			chart.radiusLength = (chart.outerRadius - chart.innerRadius) / chart.getVisibleDatasetCount();
7852
7853			me.outerRadius = chart.outerRadius - (chart.radiusLength * me.index);
7854			me.innerRadius = me.outerRadius - chart.radiusLength;
7855		},
7856
7857		updateElement: function(arc, index, reset) {
7858			var me = this;
7859			var chart = me.chart;
7860			var dataset = me.getDataset();
7861			var opts = chart.options;
7862			var animationOpts = opts.animation;
7863			var scale = chart.scale;
7864			var labels = chart.data.labels;
7865
7866			var centerX = scale.xCenter;
7867			var centerY = scale.yCenter;
7868
7869			// var negHalfPI = -0.5 * Math.PI;
7870			var datasetStartAngle = opts.startAngle;
7871			var distance = arc.hidden ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]);
7872			var startAngle = me._starts[index];
7873			var endAngle = startAngle + (arc.hidden ? 0 : me._angles[index]);
7874
7875			var resetRadius = animationOpts.animateScale ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]);
7876
7877			helpers.extend(arc, {
7878				// Utility
7879				_datasetIndex: me.index,
7880				_index: index,
7881				_scale: scale,
7882
7883				// Desired view properties
7884				_model: {
7885					x: centerX,
7886					y: centerY,
7887					innerRadius: 0,
7888					outerRadius: reset ? resetRadius : distance,
7889					startAngle: reset && animationOpts.animateRotate ? datasetStartAngle : startAngle,
7890					endAngle: reset && animationOpts.animateRotate ? datasetStartAngle : endAngle,
7891					label: helpers.valueAtIndexOrDefault(labels, index, labels[index])
7892				}
7893			});
7894
7895			// Apply border and fill style
7896			var elementOpts = this.chart.options.elements.arc;
7897			var custom = arc.custom || {};
7898			var valueOrDefault = helpers.valueAtIndexOrDefault;
7899			var model = arc._model;
7900
7901			model.backgroundColor = custom.backgroundColor ? custom.backgroundColor : valueOrDefault(dataset.backgroundColor, index, elementOpts.backgroundColor);
7902			model.borderColor = custom.borderColor ? custom.borderColor : valueOrDefault(dataset.borderColor, index, elementOpts.borderColor);
7903			model.borderWidth = custom.borderWidth ? custom.borderWidth : valueOrDefault(dataset.borderWidth, index, elementOpts.borderWidth);
7904
7905			arc.pivot();
7906		},
7907
7908		countVisibleElements: function() {
7909			var dataset = this.getDataset();
7910			var meta = this.getMeta();
7911			var count = 0;
7912
7913			helpers.each(meta.data, function(element, index) {
7914				if (!isNaN(dataset.data[index]) && !element.hidden) {
7915					count++;
7916				}
7917			});
7918
7919			return count;
7920		},
7921
7922		/**
7923		 * @private
7924		 */
7925		_computeAngle: function(index) {
7926			var me = this;
7927			var count = this.getMeta().count;
7928			var dataset = me.getDataset();
7929			var meta = me.getMeta();
7930
7931			if (isNaN(dataset.data[index]) || meta.data[index].hidden) {
7932				return 0;
7933			}
7934
7935			// Scriptable options
7936			var context = {
7937				chart: me.chart,
7938				dataIndex: index,
7939				dataset: dataset,
7940				datasetIndex: me.index
7941			};
7942
7943			return helpers.options.resolve([
7944				me.chart.options.elements.arc.angle,
7945				(2 * Math.PI) / count
7946			], context, index);
7947		}
7948	});
7949};
7950
7951},{"26":26,"41":41,"46":46}],20:[function(require,module,exports){
7952'use strict';
7953
7954var defaults = require(26);
7955var elements = require(41);
7956var helpers = require(46);
7957
7958defaults._set('radar', {
7959	scale: {
7960		type: 'radialLinear'
7961	},
7962	elements: {
7963		line: {
7964			tension: 0 // no bezier in radar
7965		}
7966	}
7967});
7968
7969module.exports = function(Chart) {
7970
7971	Chart.controllers.radar = Chart.DatasetController.extend({
7972
7973		datasetElementType: elements.Line,
7974
7975		dataElementType: elements.Point,
7976
7977		linkScales: helpers.noop,
7978
7979		update: function(reset) {
7980			var me = this;
7981			var meta = me.getMeta();
7982			var line = meta.dataset;
7983			var points = meta.data;
7984			var custom = line.custom || {};
7985			var dataset = me.getDataset();
7986			var lineElementOptions = me.chart.options.elements.line;
7987			var scale = me.chart.scale;
7988
7989			// Compatibility: If the properties are defined with only the old name, use those values
7990			if ((dataset.tension !== undefined) && (dataset.lineTension === undefined)) {
7991				dataset.lineTension = dataset.tension;
7992			}
7993
7994			helpers.extend(meta.dataset, {
7995				// Utility
7996				_datasetIndex: me.index,
7997				_scale: scale,
7998				// Data
7999				_children: points,
8000				_loop: true,
8001				// Model
8002				_model: {
8003					// Appearance
8004					tension: custom.tension ? custom.tension : helpers.valueOrDefault(dataset.lineTension, lineElementOptions.tension),
8005					backgroundColor: custom.backgroundColor ? custom.backgroundColor : (dataset.backgroundColor || lineElementOptions.backgroundColor),
8006					borderWidth: custom.borderWidth ? custom.borderWidth : (dataset.borderWidth || lineElementOptions.borderWidth),
8007					borderColor: custom.borderColor ? custom.borderColor : (dataset.borderColor || lineElementOptions.borderColor),
8008					fill: custom.fill ? custom.fill : (dataset.fill !== undefined ? dataset.fill : lineElementOptions.fill),
8009					borderCapStyle: custom.borderCapStyle ? custom.borderCapStyle : (dataset.borderCapStyle || lineElementOptions.borderCapStyle),
8010					borderDash: custom.borderDash ? custom.borderDash : (dataset.borderDash || lineElementOptions.borderDash),
8011					borderDashOffset: custom.borderDashOffset ? custom.borderDashOffset : (dataset.borderDashOffset || lineElementOptions.borderDashOffset),
8012					borderJoinStyle: custom.borderJoinStyle ? custom.borderJoinStyle : (dataset.borderJoinStyle || lineElementOptions.borderJoinStyle),
8013				}
8014			});
8015
8016			meta.dataset.pivot();
8017
8018			// Update Points
8019			helpers.each(points, function(point, index) {
8020				me.updateElement(point, index, reset);
8021			}, me);
8022
8023			// Update bezier control points
8024			me.updateBezierControlPoints();
8025		},
8026		updateElement: function(point, index, reset) {
8027			var me = this;
8028			var custom = point.custom || {};
8029			var dataset = me.getDataset();
8030			var scale = me.chart.scale;
8031			var pointElementOptions = me.chart.options.elements.point;
8032			var pointPosition = scale.getPointPositionForValue(index, dataset.data[index]);
8033
8034			// Compatibility: If the properties are defined with only the old name, use those values
8035			if ((dataset.radius !== undefined) && (dataset.pointRadius === undefined)) {
8036				dataset.pointRadius = dataset.radius;
8037			}
8038			if ((dataset.hitRadius !== undefined) && (dataset.pointHitRadius === undefined)) {
8039				dataset.pointHitRadius = dataset.hitRadius;
8040			}
8041
8042			helpers.extend(point, {
8043				// Utility
8044				_datasetIndex: me.index,
8045				_index: index,
8046				_scale: scale,
8047
8048				// Desired view properties
8049				_model: {
8050					x: reset ? scale.xCenter : pointPosition.x, // value not used in dataset scale, but we want a consistent API between scales
8051					y: reset ? scale.yCenter : pointPosition.y,
8052
8053					// Appearance
8054					tension: custom.tension ? custom.tension : helpers.valueOrDefault(dataset.lineTension, me.chart.options.elements.line.tension),
8055					radius: custom.radius ? custom.radius : helpers.valueAtIndexOrDefault(dataset.pointRadius, index, pointElementOptions.radius),
8056					backgroundColor: custom.backgroundColor ? custom.backgroundColor : helpers.valueAtIndexOrDefault(dataset.pointBackgroun
8056dColor, index, pointElementOptions.backgroundColor),
8057					borderColor: custom.borderColor ? custom.borderColor : helpers.valueAtIndexOrDefault(dataset.pointBorderColor, index, pointElementOptions.borderColor),
8058					borderWidth: custom.borderWidth ? custom.borderWidth : helpers.valueAtIndexOrDefault(dataset.pointBorderWidth, index, pointElementOptions.borderWidth),
8059					pointStyle: custom.pointStyle ? custom.pointStyle : helpers.valueAtIndexOrDefault(dataset.pointStyle, index, pointElementOptions.pointStyle),
8060					rotation: custom.rotation ? custom.rotation : helpers.valueAtIndexOrDefault(dataset.pointRotation, index, pointElementOptions.rotation),
8061
8062					// Tooltip
8063					hitRadius: custom.hitRadius ? custom.hitRadius : helpers.valueAtIndexOrDefault(dataset.pointHitRadius, index, pointElementOptions.hitRadius)
8064				}
8065			});
8066
8067			point._model.skip = custom.skip ? custom.skip : (isNaN(point._model.x) || isNaN(point._model.y));
8068		},
8069		updateBezierControlPoints: function() {
8070			var chartArea = this.chart.chartArea;
8071			var meta = this.getMeta();
8072
8073			helpers.each(meta.data, function(point, index) {
8074				var model = point._model;
8075				var controlPoints = helpers.splineCurve(
8076					helpers.previousItem(meta.data, index, true)._model,
8077					model,
8078					helpers.nextItem(meta.data, index, true)._model,
8079					model.tension
8080				);
8081
8082				// Prevent the bezier going outside of the bounds of the graph
8083				model.controlPointPreviousX = Math.max(Math.min(controlPoints.previous.x, chartArea.right), chartArea.left);
8084				model.controlPointPreviousY = Math.max(Math.min(controlPoints.previous.y, chartArea.bottom), chartArea.top);
8085
8086				model.controlPointNextX = Math.max(Math.min(controlPoints.next.x, chartArea.right), chartArea.left);
8087				model.controlPointNextY = Math.max(Math.min(controlPoints.next.y, chartArea.bottom), chartArea.top);
8088
8089				// Now pivot the point for animation
8090				point.pivot();
8091			});
8092		},
8093
8094		setHoverStyle: function(point) {
8095			// Point
8096			var dataset = this.chart.data.datasets[point._datasetIndex];
8097			var custom = point.custom || {};
8098			var index = point._index;
8099			var model = point._model;
8100
8101			point.$previousStyle = {
8102				backgroundColor: model.backgroundColor,
8103				borderColor: model.borderColor,
8104				borderWidth: model.borderWidth,
8105				radius: model.radius
8106			};
8107
8108			model.radius = custom.hoverRadius ? custom.hoverRadius : helpers.valueAtIndexOrDefault(dataset.pointHoverRadius, index, this.chart.options.elements.point.hoverRadius);
8109			model.backgroundColor = custom.hoverBackgroundColor ? custom.hoverBackgroundColor : helpers.valueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.getHoverColor(model.backgroundColor));
8110			model.borderColor = custom.hoverBorderColor ? custom.hoverBorderColor : helpers.valueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.getHoverColor(model.borderColor));
8111			model.borderWidth = custom.hoverBorderWidth ? custom.hoverBorderWidth : helpers.valueAtIndexOrDefault(dataset.pointHoverBorderWidth, index, model.borderWidth);
8112		},
8113	});
8114};
8115
8116},{"26":26,"41":41,"46":46}],21:[function(require,module,exports){
8117'use strict';
8118
8119var defaults = require(26);
8120
8121defaults._set('scatter', {
8122	hover: {
8123		mode: 'single'
8124	},
8125
8126	scales: {
8127		xAxes: [{
8128			id: 'x-axis-1',    // need an ID so datasets can reference the scale
8129			type: 'linear',    // scatter should not use a category axis
8130			position: 'bottom'
8131		}],
8132		yAxes: [{
8133			id: 'y-axis-1',
8134			type: 'linear',
8135			position: 'left'
8136		}]
8137	},
8138
8139	showLines: false,
8140
8141	tooltips: {
8142		callbacks: {
8143			title: function() {
8144				return '';     // doesn't make sense for scatter since data are formatted as a point
8145			},
8146			label: function(item) {
8147				return '(' + item.xLabel + ', ' + item.yLabel + ')';
8148			}
8149		}
8150	}
8151});
8152
8153module.exports = function(Chart) {
8154
8155	// Scatter charts use line controllers
8156	Chart.controllers.scatter = Chart.controllers.line;
8157
8158};
8159
8160},{"26":26}],22:[function(require,module,exports){
8161'use strict';
8162
8163var Element = require(27);
8164
8165var exports = module.exports = Element.extend({
8166	chart: null, // the animation associated chart instance
8167	currentStep: 0, // the current animation step
8168	numSteps: 60, // default number of steps
8169	easing: '', // the easing to use for this animation
8170	render: null, // render function used by the animation service
8171
8172	onAnimationProgress: null, // user specified callback to fire on each step of the animation
8173	onAnimationComplete: null, // user specified callback to fire when the animation finishes
8174});
8175
8176// DEPRECATIONS
8177
8178/**
8179 * Provided for backward compatibility, use Chart.Animation instead
8180 * @prop Chart.Animation#animationObject
8181 * @deprecated since version 2.6.0
8182 * @todo remove at version 3
8183 */
8184Object.defineProperty(exports.prototype, 'animationObject', {
8185	get: function() {
8186		return this;
8187	}
8188});
8189
8190/**
8191 * Provided for backward compatibility, use Chart.Animation#chart instead
8192 * @prop Chart.Animation#chartInstance
8193 * @deprecated since version 2.6.0
8194 * @todo remove at version 3
8195 */
8196Object.defineProperty(exports.prototype, 'chartInstance', {
8197	get: function() {
8198		return this.chart;
8199	},
8200	set: function(value) {
8201		this.chart = value;
8202	}
8203});
8204
8205},{"27":27}],23:[function(require,module,exports){
8206/* global window: false */
8207'use strict';
8208
8209var defaults = require(26);
8210var helpers = require(46);
8211
8212defaults._set('global', {
8213	animation: {
8214		duration: 1000,
8215		easing: 'easeOutQuart',
8216		onProgress: helpers.noop,
8217		onComplete: helpers.noop
8218	}
8219});
8220
8221module.exports = {
8222	frameDuration: 17,
8223	animations: [],
8224	dropFrames: 0,
8225	request: null,
8226
8227	/**
8228	 * @param {Chart} chart - The chart to animate.
8229	 * @param {Chart.Animation} animation - The animation that we will animate.
8230	 * @param {Number} duration - The animation duration in ms.
8231	 * @param {Boolean} lazy - if true, the chart is not marked as animating to enable more responsive interactions
8232	 */
8233	addAnimation: function(chart, animation, duration, lazy) {
8234		var animations = this.animations;
8235		var i, ilen;
8236
8237		animation.chart = chart;
8238
8239		if (!lazy) {
8240			chart.animating = true;
8241		}
8242
8243		for (i = 0, ilen = animations.length; i < ilen; ++i) {
8244			if (animations[i].chart === chart) {
8245				animations[i] = animation;
8246				return;
8247			}
8248		}
8249
8250		animations.push(animation);
8251
8252		// If there are no animations queued, manually kickstart a digest, for lack of a better word
8253		if (animations.length === 1) {
8254			this.requestAnimationFrame();
8255		}
8256	},
8257
8258	cancelAnimation: function(chart) {
8259		var index = helpers.findIndex(this.animations, function(animation) {
8260			return animation.chart === chart;
8261		});
8262
8263		if (index !== -1) {
8264			this.animations.splice(index, 1);
8265			chart.animating = false;
8266		}
8267	},
8268
8269	requestAnimationFrame: function() {
8270		var me = this;
8271		if (me.request === null) {
8272			// Skip animation frame requests until the active one is executed.
8273			// This can happen when processing mouse events, e.g. 'mousemove'
8274			// and 'mouseout' events will trigger multiple renders.
8275			me.request = helpers.requestAnimFrame.call(window, function() {
8276				me.request = null;
8277				me.startDigest();
8278			});
8279		}
8280	},
8281
8282	/**
8283	 * @private
8284	 */
8285	startDigest: function() {
8286		var me = this;
8287		var startTime = Date.now();
8288		var framesToDrop = 0;
8289
8290		if (me.dropFrames > 1) {
8291			framesToDrop = Math.floor(me.dropFrames);
8292			me.dropFrames = me.dropFrames % 1;
8293		}
8294
8295		me.advance(1 + framesToDrop);
8296
8297		var endTime = Date.now();
8298
8299		me.dropFrames += (endTime - startTime) / me.frameDuration;
8300
8301		// Do we have more stuff to animate?
8302		if (me.animations.length > 0) {
8303			me.requestAnimationFrame();
8304		}
8305	},
8306
8307	/**
8308	 * @private
8309	 */
8310	advance: function(count) {
8311		var animations = this.animations;
8312		var animation, chart;
8313		var i = 0;
8314
8315		while (i < animations.length) {
8316			animation = animations[i];
8317			chart = animation.chart;
8318
8319			animation.currentStep = (animation.currentStep || 0) + count;
8320			animation.currentStep = Math.min(animation.currentStep, animation.numSteps);
8321
8322			helpers.callback(animation.render, [chart, animation], chart);
8323			helpers.callback(animation.onAnimationProgress, [animation], chart);
8324
8325			if (animation.currentStep >= animation.numSteps) {
8326				helpers.callback(animation.onAnimationComplete, [animation], chart);
8327				chart.animating = false;
8328				animations.splice(i, 1);
8329			} else {
8330				++i;
8331			}
8332		}
8333	}
8334};
8335
8336},{"26":26,"46":46}],24:[function(require,module,exports){
8337'use strict';
8338
8339var Animation = require(22);
8340var animations = require(23);
8341var defaults = require(26);
8342var helpers = require(46);
8343var Interaction = require(29);
8344var layouts = require(31);
8345var platform = require(49);
8346var plugins = require(32);
8347var scaleService = require(34);
8348var Tooltip = require(36);
8349
8350module.exports = function(Chart) {
8351
8352	// Create a dictionary of chart types, to allow for extension of existing types
8353	Chart.types = {};
8354
8355	// Store a reference to each instance - allowing us to globally resize chart instances on window resize.
8356	// Destroy method on the chart will remove the instance of the chart from this reference.
8357	Chart.instances = {};
8358
8359	// Controllers available for dataset visualization eg. bar, line, slice, etc.
8360	Chart.controllers = {};
8361
8362	/**
8363	 * Initializes the given config with global and chart default values.
8364	 */
8365	function initConfig(config) {
8366		config = config || {};
8367
8368		// Do NOT use configMerge() for the data object because this method merges arrays
8369		// and so would change references to labels and datasets, preventing data updates.
8370		var data = config.data = config.data || {};
8371		data.datasets = data.datasets || [];
8372		data.labels = data.labels || [];
8373
8374		config.options = helpers.configMerge(
8375			defaults.global,
8376			defaults[config.type],
8377			config.options || {});
8378
8379		return config;
8380	}
8381
8382	/**
8383	 * Updates the config of the chart
8384	 * @param chart {Chart} chart to update the options for
8385	 */
8386	function updateConfig(chart) {
8387		var newOptions = chart.options;
8388
8389		helpers.each(chart.scales, function(scale) {
8390			layouts.removeBox(chart, scale);
8391		});
8392
8393		newOptions = helpers.configMerge(
8394			Chart.defaults.global,
8395			Chart.defaults[chart.config.type],
8396			newOptions);
8397
8398		chart.options = chart.config.options = newOptions;
vendor: 11,649 bytes, lines 8399-8833
8399		chart.ensureScalesHaveIDs();
8400		chart.buildOrUpdateScales();
8401		// Tooltip
8402		chart.tooltip._options = newOptions.tooltips;
8403		chart.tooltip.initialize();
8404	}
8405
8406	function positionIsHorizontal(position) {
8407		return position === 'top' || position === 'bottom';
8408	}
8409
8410	helpers.extend(Chart.prototype, /** @lends Chart */ {
8411		/**
8412		 * @private
8413		 */
8414		construct: function(item, config) {
8415			var me = this;
8416
8417			config = initConfig(config);
8418
8419			var context = platform.acquireContext(item, config);
8420			var canvas = context && context.canvas;
8421			var height = canvas && canvas.height;
8422			var width = canvas && canvas.width;
8423
8424			me.id = helpers.uid();
8425			me.ctx = context;
8426			me.canvas = canvas;
8427			me.config = config;
8428			me.width = width;
8429			me.height = height;
8430			me.aspectRatio = height ? width / height : null;
8431			me.options = config.options;
8432			me._bufferedRender = false;
8433
8434			/**
8435			 * Provided for backward compatibility, Chart and Chart.Controller have been merged,
8436			 * the "instance" still need to be defined since it might be called from plugins.
8437			 * @prop Chart#chart
8438			 * @deprecated since version 2.6.0
8439			 * @todo remove at version 3
8440			 * @private
8441			 */
8442			me.chart = me;
8443			me.controller = me; // chart.chart.controller #inception
8444
8445			// Add the chart instance to the global namespace
8446			Chart.instances[me.id] = me;
8447
8448			// Define alias to the config data: `chart.data === chart.config.data`
8449			Object.defineProperty(me, 'data', {
8450				get: function() {
8451					return me.config.data;
8452				},
8453				set: function(value) {
8454					me.config.data = value;
8455				}
8456			});
8457
8458			if (!context || !canvas) {
8459				// The given item is not a compatible context2d element, let's return before finalizing
8460				// the chart initialization but after setting basic chart / controller properties that
8461				// can help to figure out that the chart is not valid (e.g chart.canvas !== null);
8462				// https://github.com/chartjs/Chart.js/issues/2807
8463				console.error("Failed to create chart: can't acquire context from the given item");
8464				return;
8465			}
8466
8467			me.initialize();
8468			me.update();
8469		},
8470
8471		/**
8472		 * @private
8473		 */
8474		initialize: function() {
8475			var me = this;
8476
8477			// Before init plugin notification
8478			plugins.notify(me, 'beforeInit');
8479
8480			helpers.retinaScale(me, me.options.devicePixelRatio);
8481
8482			me.bindEvents();
8483
8484			if (me.options.responsive) {
8485				// Initial resize before chart draws (must be silent to preserve initial animations).
8486				me.resize(true);
8487			}
8488
8489			// Make sure scales have IDs and are built before we build any controllers.
8490			me.ensureScalesHaveIDs();
8491			me.buildOrUpdateScales();
8492			me.initToolTip();
8493
8494			// After init plugin notification
8495			plugins.notify(me, 'afterInit');
8496
8497			return me;
8498		},
8499
8500		clear: function() {
8501			helpers.canvas.clear(this);
8502			return this;
8503		},
8504
8505		stop: function() {
8506			// Stops any current animation loop occurring
8507			animations.cancelAnimation(this);
8508			return this;
8509		},
8510
8511		resize: function(silent) {
8512			var me = this;
8513			var options = me.options;
8514			var canvas = me.canvas;
8515			var aspectRatio = (options.maintainAspectRatio && me.aspectRatio) || null;
8516
8517			// the canvas render width and height will be casted to integers so make sure that
8518			// the canvas display style uses the same integer values to avoid blurring effect.
8519
8520			// Set to 0 instead of canvas.size because the size defaults to 300x150 if the element is collapsed
8521			var newWidth = Math.max(0, Math.floor(helpers.getMaximumWidth(canvas)));
8522			var newHeight = Math.max(0, Math.floor(aspectRatio ? newWidth / aspectRatio : helpers.getMaximumHeight(canvas)));
8523
8524			if (me.width === newWidth && me.height === newHeight) {
8525				return;
8526			}
8527
8528			canvas.width = me.width = newWidth;
8529			canvas.height = me.height = newHeight;
8530			canvas.style.width = newWidth + 'px';
8531			canvas.style.height = newHeight + 'px';
8532
8533			helpers.retinaScale(me, options.devicePixelRatio);
8534
8535			if (!silent) {
8536				// Notify any plugins about the resize
8537				var newSize = {width: newWidth, height: newHeight};
8538				plugins.notify(me, 'resize', [newSize]);
8539
8540				// Notify of resize
8541				if (me.options.onResize) {
8542					me.options.onResize(me, newSize);
8543				}
8544
8545				me.stop();
8546				me.update({
8547					duration: me.options.responsiveAnimationDuration
8548				});
8549			}
8550		},
8551
8552		ensureScalesHaveIDs: function() {
8553			var options = this.options;
8554			var scalesOptions = options.scales || {};
8555			var scaleOptions = options.scale;
8556
8557			helpers.each(scalesOptions.xAxes, function(xAxisOptions, index) {
8558				xAxisOptions.id = xAxisOptions.id || ('x-axis-' + index);
8559			});
8560
8561			helpers.each(scalesOptions.yAxes, function(yAxisOptions, index) {
8562				yAxisOptions.id = yAxisOptions.id || ('y-axis-' + index);
8563			});
8564
8565			if (scaleOptions) {
8566				scaleOptions.id = scaleOptions.id || 'scale';
8567			}
8568		},
8569
8570		/**
8571		 * Builds a map of scale ID to scale object for future lookup.
8572		 */
8573		buildOrUpdateScales: function() {
8574			var me = this;
8575			var options = me.options;
8576			var scales = me.scales || {};
8577			var items = [];
8578			var updated = Object.keys(scales).reduce(function(obj, id) {
8579				obj[id] = false;
8580				return obj;
8581			}, {});
8582
8583			if (options.scales) {
8584				items = items.concat(
8585					(options.scales.xAxes || []).map(function(xAxisOptions) {
8586						return {options: xAxisOptions, dtype: 'category', dposition: 'bottom'};
8587					}),
8588					(options.scales.yAxes || []).map(function(yAxisOptions) {
8589						return {options: yAxisOptions, dtype: 'linear', dposition: 'left'};
8590					})
8591				);
8592			}
8593
8594			if (options.scale) {
8595				items.push({
8596					options: options.scale,
8597					dtype: 'radialLinear',
8598					isDefault: true,
8599					dposition: 'chartArea'
8600				});
8601			}
8602
8603			helpers.each(items, function(item) {
8604				var scaleOptions = item.options;
8605				var id = scaleOptions.id;
8606				var scaleType = helpers.valueOrDefault(scaleOptions.type, item.dtype);
8607
8608				if (positionIsHorizontal(scaleOptions.position) !== positionIsHorizontal(item.dposition)) {
8609					scaleOptions.position = item.dposition;
8610				}
8611
8612				updated[id] = true;
8613				var scale = null;
8614				if (id in scales && scales[id].type === scaleType) {
8615					scale = scales[id];
8616					scale.options = scaleOptions;
8617					scale.ctx = me.ctx;
8618					scale.chart = me;
8619				} else {
8620					var scaleClass = scaleService.getScaleConstructor(scaleType);
8621					if (!scaleClass) {
8622						return;
8623					}
8624					scale = new scaleClass({
8625						id: id,
8626						type: scaleType,
8627						options: scaleOptions,
8628						ctx: me.ctx,
8629						chart: me
8630					});
8631					scales[scale.id] = scale;
8632				}
8633
8634				scale.mergeTicksOptions();
8635
8636				// TODO(SB): I think we should be able to remove this custom case (options.scale)
8637				// and consider it as a regular scale part of the "scales"" map only! This would
8638				// make the logic easier and remove some useless? custom code.
8639				if (item.isDefault) {
8640					me.scale = scale;
8641				}
8642			});
8643			// clear up discarded scales
8644			helpers.each(updated, function(hasUpdated, id) {
8645				if (!hasUpdated) {
8646					delete scales[id];
8647				}
8648			});
8649
8650			me.scales = scales;
8651
8652			scaleService.addScalesToLayout(this);
8653		},
8654
8655		buildOrUpdateControllers: function() {
8656			var me = this;
8657			var types = [];
8658			var newControllers = [];
8659
8660			helpers.each(me.data.datasets, function(dataset, datasetIndex) {
8661				var meta = me.getDatasetMeta(datasetIndex);
8662				var type = dataset.type || me.config.type;
8663
8664				if (meta.type && meta.type !== type) {
8665					me.destroyDatasetMeta(datasetIndex);
8666					meta = me.getDatasetMeta(datasetIndex);
8667				}
8668				meta.type = type;
8669
8670				types.push(meta.type);
8671
8672				if (meta.controller) {
8673					meta.controller.updateIndex(datasetIndex);
8674					meta.controller.linkScales();
8675				} else {
8676					var ControllerClass = Chart.controllers[meta.type];
8677					if (ControllerClass === undefined) {
8678						throw new Error('"' + meta.type + '" is not a chart type.');
8679					}
8680
8681					meta.controller = new ControllerClass(me, datasetIndex);
8682					newControllers.push(meta.controller);
8683				}
8684			}, me);
8685
8686			return newControllers;
8687		},
8688
8689		/**
8690		 * Reset the elements of all datasets
8691		 * @private
8692		 */
8693		resetElements: function() {
8694			var me = this;
8695			helpers.each(me.data.datasets, function(dataset, datasetIndex) {
8696				me.getDatasetMeta(datasetIndex).controller.reset();
8697			}, me);
8698		},
8699
8700		/**
8701		* Resets the chart back to it's state before the initial animation
8702		*/
8703		reset: function() {
8704			this.resetElements();
8705			this.tooltip.initialize();
8706		},
8707
8708		update: function(config) {
8709			var me = this;
8710
8711			if (!config || typeof config !== 'object') {
8712				// backwards compatibility
8713				config = {
8714					duration: config,
8715					lazy: arguments[1]
8716				};
8717			}
8718
8719			updateConfig(me);
8720
8721			// plugins options references might have change, let's invalidate the cache
8722			// https://github.com/chartjs/Chart.js/issues/5111#issuecomment-355934167
8723			plugins._invalidate(me);
8724
8725			if (plugins.notify(me, 'beforeUpdate') === false) {
8726				return;
8727			}
8728
8729			// In case the entire data object changed
8730			me.tooltip._data = me.data;
8731
8732			// Make sure dataset controllers are updated and new controllers are reset
8733			var newControllers = me.buildOrUpdateControllers();
8734
8735			// Make sure all dataset controllers have correct meta data counts
8736			helpers.each(me.data.datasets, function(dataset, datasetIndex) {
8737				me.getDatasetMeta(datasetIndex).controller.buildOrUpdateElements();
8738			}, me);
8739
8740			me.updateLayout();
8741
8742			// Can only reset the new controllers after the scales have been updated
8743			if (me.options.animation && me.options.animation.duration) {
8744				helpers.each(newControllers, function(controller) {
8745					controller.reset();
8746				});
8747			}
8748
8749			me.updateDatasets();
8750
8751			// Need to reset tooltip in case it is displayed with elements that are removed
8752			// after update.
8753			me.tooltip.initialize();
8754
8755			// Last active contains items that were previously in the tooltip.
8756			// When we reset the tooltip, we need to clear it
8757			me.lastActive = [];
8758
8759			// Do this before render so that any plugins that need final scale updates can use it
8760			plugins.notify(me, 'afterUpdate');
8761
8762			if (me._bufferedRender) {
8763				me._bufferedRequest = {
8764					duration: config.duration,
8765					easing: config.easing,
8766					lazy: config.lazy
8767				};
8768			} else {
8769				me.render(config);
8770			}
8771		},
8772
8773		/**
8774		 * Updates the chart layout unless a plugin returns `false` to the `beforeLayout`
8775		 * hook, in which case, plugins will not be called on `afterLayout`.
8776		 * @private
8777		 */
8778		updateLayout: function() {
8779			var me = this;
8780
8781			if (plugins.notify(me, 'beforeLayout') === false) {
8782				return;
8783			}
8784
8785			layouts.update(this, this.width, this.height);
8786
8787			/**
8788			 * Provided for backward compatibility, use `afterLayout` instead.
8789			 * @method IPlugin#afterScaleUpdate
8790			 * @deprecated since version 2.5.0
8791			 * @todo remove at version 3
8792			 * @private
8793			 */
8794			plugins.notify(me, 'afterScaleUpdate');
8795			plugins.notify(me, 'afterLayout');
8796		},
8797
8798		/**
8799		 * Updates all datasets unless a plugin returns `false` to the `beforeDatasetsUpdate`
8800		 * hook, in which case, plugins will not be called on `afterDatasetsUpdate`.
8801		 * @private
8802		 */
8803		updateDatasets: function() {
8804			var me = this;
8805
8806			if (plugins.notify(me, 'beforeDatasetsUpdate') === false) {
8807				return;
8808			}
8809
8810			for (var i = 0, ilen = me.data.datasets.length; i < ilen; ++i) {
8811				me.updateDataset(i);
8812			}
8813
8814			plugins.notify(me, 'afterDatasetsUpdate');
8815		},
8816
8817		/**
8818		 * Updates dataset at index unless a plugin returns `false` to the `beforeDatasetUpdate`
8819		 * hook, in which case, plugins will not be called on `afterDatasetUpdate`.
8820		 * @private
8821		 */
8822		updateDataset: function(index) {
8823			var me = this;
8824			var meta = me.getDatasetMeta(index);
8825			var args = {
8826				meta: meta,
8827				index: index
8828			};
8829
8830			if (plugins.notify(me, 'beforeDatasetUpdate', [args]) === false) {
8831				return;
8832			}
8833
8834			meta.controller.update();
8835
8836			plugins.notify(me, 'afterDatasetUpdate', [args]);
8837		},
8838
8839		render: function(config) {
8840			var me = this;
8841
8842			if (!config || typeof config !== 'object') {
8843				// backwards compatibility
8844				config = {
8845					duration: config,
8846					lazy: arguments[1]
8847				};
8848			}
8849
8850			var duration = config.duration;
8851			var lazy = config.lazy;
8852
8853			if (plugins.notify(me, 'beforeRender') === false) {
8854				return;
8855			}
8856
8857			var animationOptions = me.options.animation;
8858			var onComplete = function(animation) {
8859				plugins.notify(me, 'afterRender');
8860				helpers.callback(animationOptions && animationOptions.onComplete, [animation], me);
8861			};
8862
8863			if (animationOptions && ((typeof duration !== 'undefined' && duration !== 0) || (typeof duration === 'undefined' && animationOptions.duration !== 0))) {
8864				var animation = new Animation({
8865					numSteps: (duration || animationOptions.duration) / 16.66, // 60 fps
8866					easing: config.easing || animationOptions.easing,
8867
8868					render: function(chart, animationObject) {
8869						var easingFunction = helpers.easing.effects[animationObject.easing];
8870						var currentStep = animationObject.currentStep;
8871						var stepDecimal = currentStep / animationObject.numSteps;
8872
8873						chart.draw(easingFunction(stepDecimal), stepDecimal, currentStep);
8874					},
8875
8876					onAnimationProgress: animationOptions.onProgress,
8877					onAnimationComplete: onComplete
8878				});
8879
8880				animations.addAnimation(me, animation, duration, lazy);
8881			} else {
8882				me.draw();
8883
8884				// See https://github.com/chartjs/Chart.js/issues/3781
8885				onComplete(new Animation({numSteps: 0, chart: me}));
8886			}
8887
8888			return me;
8889		},
8890
8891		draw: function(easingValue) {
8892			var me = this;
8893
8894			me.clear();
8895
8896			if (helpers.isNullOrUndef(easingValue)) {
8897				easingValue = 1;
8898			}
8899
8900			me.transition(easingValue);
8901
8902			if (me.width <= 0 || me.height <= 0) {
8903				return;
8904			}
8905
8906			if (plugins.notify(me, 'beforeDraw', [easingValue]) === false) {
8907				return;
8908			}
8909
8910			// Draw all the scales
8911			helpers.each(me.boxes, function(box) {
8912				box.draw(me.chartArea);
8913			}, me);
8914
8915			if (me.scale) {
8916				me.scale.draw();
8917			}
8918
8919			me.drawDatasets(easingValue);
8920			me._drawTooltip(easingValue);
8921
8922			plugins.notify(me, 'afterDraw', [easingValue]);
8923		},
8924
8925		/**
8926		 * @private
8927		 */
8928		transition: function(easingValue) {
8929			var me = this;
8930
8931			for (var i = 0, ilen = (me.data.datasets || []).length; i < ilen; ++i) {
8932				if (me.isDatasetVisible(i)) {
8933					me.getDatasetMeta(i).controller.transition(easingValue);
8934				}
8935			}
8936
8937			me.tooltip.transition(easingValue);
8938		},
8939
8940		/**
8941		 * Draws all datasets unless a plugin returns `false` to the `beforeDatasetsDraw`
8942		 * hook, in which case, plugins will not be called on `afterDatasetsDraw`.
8943		 * @private
8944		 */
8945		drawDatasets: function(easingValue) {
8946			var me = this;
8947
8948			if (plugins.notify(me, 'beforeDatasetsDraw', [easingValue]) === false) {
8949				return;
8950			}
8951
8952			// Draw datasets reversed to support proper line stacking
8953			for (var i = (me.data.datasets || []).length - 1; i >= 0; --i) {
8954				if (me.isDatasetVisible(i)) {
8955					me.drawDataset(i, easingValue);
8956				}
8957			}
8958
8959			plugins.notify(me, 'afterDatasetsDraw', [easingValue]);
8960		},
8961
8962		/**
8963		 * Draws dataset at index unless a plugin returns `false` to the `beforeDatasetDraw`
8964		 * hook, in which case, plugins will not be called on `afterDatasetDraw`.
8965		 * @private
8966		 */
8967		drawDataset: function(index, easingValue) {
8968			var me = this;
8969			var meta = me.getDatasetMeta(index);
8970			var args = {
8971				meta: meta,
8972				index: index,
8973				easingValue: easingValue
8974			};
8975
8976			if (plugins.notify(me, 'beforeDatasetDraw', [args]) === false) {
8977				return;
8978			}
8979
8980			meta.controller.draw(easingValue);
8981
8982			plugins.notify(me, 'afterDatasetDraw', [args]);
8983		},
8984
8985		/**
8986		 * Draws tooltip unless a plugin returns `false` to the `beforeTooltipDraw`
8987		 * hook, in which case, plugins will not be called on `afterTooltipDraw`.
8988		 * @private
8989		 */
8990		_drawTooltip: function(easingValue) {
8991			var me = this;
8992			var tooltip = me.tooltip;
8993			var args = {
8994				tooltip: tooltip,
8995				easingValue: easingValue
8996			};
8997
8998			if (plugins.notify(me, 'beforeTooltipDraw', [args]) === false) {
8999				return;
9000			}
9001
9002			tooltip.draw();
9003
9004			plugins.notify(me, 'afterTooltipDraw', [args]);
9005		},
9006
9007		// Get the single element that was clicked on
vendor: 9,696 bytes, lines 9008-9394
9008		// @return : An object containing the dataset index and element index of the matching element. Also contains the rectangle that was draw
9009		getElementAtEvent: function(e) {
9010			return Interaction.modes.single(this, e);
9011		},
9012
9013		getElementsAtEvent: function(e) {
9014			return Interaction.modes.label(this, e, {intersect: true});
9015		},
9016
9017		getElementsAtXAxis: function(e) {
9018			return Interaction.modes['x-axis'](this, e, {intersect: true});
9019		},
9020
9021		getElementsAtEventForMode: function(e, mode, options) {
9022			var method = Interaction.modes[mode];
9023			if (typeof method === 'function') {
9024				return method(this, e, options);
9025			}
9026
9027			return [];
9028		},
9029
9030		getDatasetAtEvent: function(e) {
9031			return Interaction.modes.dataset(this, e, {intersect: true});
9032		},
9033
9034		getDatasetMeta: function(datasetIndex) {
9035			var me = this;
9036			var dataset = me.data.datasets[datasetIndex];
9037			if (!dataset._meta) {
9038				dataset._meta = {};
9039			}
9040
9041			var meta = dataset._meta[me.id];
9042			if (!meta) {
9043				meta = dataset._meta[me.id] = {
9044					type: null,
9045					data: [],
9046					dataset: null,
9047					controller: null,
9048					hidden: null,			// See isDatasetVisible() comment
9049					xAxisID: null,
9050					yAxisID: null
9051				};
9052			}
9053
9054			return meta;
9055		},
9056
9057		getVisibleDatasetCount: function() {
9058			var count = 0;
9059			for (var i = 0, ilen = this.data.datasets.length; i < ilen; ++i) {
9060				if (this.isDatasetVisible(i)) {
9061					count++;
9062				}
9063			}
9064			return count;
9065		},
9066
9067		isDatasetVisible: function(datasetIndex) {
9068			var meta = this.getDatasetMeta(datasetIndex);
9069
9070			// meta.hidden is a per chart dataset hidden flag override with 3 states: if true or false,
9071			// the dataset.hidden value is ignored, else if null, the dataset hidden state is returned.
9072			return typeof meta.hidden === 'boolean' ? !meta.hidden : !this.data.datasets[datasetIndex].hidden;
9073		},
9074
9075		generateLegend: function() {
9076			return this.options.legendCallback(this);
9077		},
9078
9079		/**
9080		 * @private
9081		 */
9082		destroyDatasetMeta: function(datasetIndex) {
9083			var id = this.id;
9084			var dataset = this.data.datasets[datasetIndex];
9085			var meta = dataset._meta && dataset._meta[id];
9086
9087			if (meta) {
9088				meta.controller.destroy();
9089				delete dataset._meta[id];
9090			}
9091		},
9092
9093		destroy: function() {
9094			var me = this;
9095			var canvas = me.canvas;
9096			var i, ilen;
9097
9098			me.stop();
9099
9100			// dataset controllers need to cleanup associated data
9101			for (i = 0, ilen = me.data.datasets.length; i < ilen; ++i) {
9102				me.destroyDatasetMeta(i);
9103			}
9104
9105			if (canvas) {
9106				me.unbindEvents();
9107				helpers.canvas.clear(me);
9108				platform.releaseContext(me.ctx);
9109				me.canvas = null;
9110				me.ctx = null;
9111			}
9112
9113			plugins.notify(me, 'destroy');
9114
9115			delete Chart.instances[me.id];
9116		},
9117
9118		toBase64Image: function() {
9119			return this.canvas.toDataURL.apply(this.canvas, arguments);
9120		},
9121
9122		initToolTip: function() {
9123			var me = this;
9124			me.tooltip = new Tooltip({
9125				_chart: me,
9126				_chartInstance: me, // deprecated, backward compatibility
9127				_data: me.data,
9128				_options: me.options.tooltips
9129			}, me);
9130		},
9131
9132		/**
9133		 * @private
9134		 */
9135		bindEvents: function() {
9136			var me = this;
9137			var listeners = me._listeners = {};
9138			var listener = function() {
9139				me.eventHandler.apply(me, arguments);
9140			};
9141
9142			helpers.each(me.options.events, function(type) {
9143				platform.addEventListener(me, type, listener);
9144				listeners[type] = listener;
9145			});
9146
9147			// Elements used to detect size change should not be injected for non responsive charts.
9148			// See https://github.com/chartjs/Chart.js/issues/2210
9149			if (me.options.responsive) {
9150				listener = function() {
9151					me.resize();
9152				};
9153
9154				platform.addEventListener(me, 'resize', listener);
9155				listeners.resize = listener;
9156			}
9157		},
9158
9159		/**
9160		 * @private
9161		 */
9162		unbindEvents: function() {
9163			var me = this;
9164			var listeners = me._listeners;
9165			if (!listeners) {
9166				return;
9167			}
9168
9169			delete me._listeners;
9170			helpers.each(listeners, function(listener, type) {
9171				platform.removeEventListener(me, type, listener);
9172			});
9173		},
9174
9175		updateHoverStyle: function(elements, mode, enabled) {
9176			var method = enabled ? 'setHoverStyle' : 'removeHoverStyle';
9177			var element, i, ilen;
9178
9179			for (i = 0, ilen = elements.length; i < ilen; ++i) {
9180				element = elements[i];
9181				if (element) {
9182					this.getDatasetMeta(element._datasetIndex).controller[method](element);
9183				}
9184			}
9185		},
9186
9187		/**
9188		 * @private
9189		 */
9190		eventHandler: function(e) {
9191			var me = this;
9192			var tooltip = me.tooltip;
9193
9194			if (plugins.notify(me, 'beforeEvent', [e]) === false) {
9195				return;
9196			}
9197
9198			// Buffer any update calls so that renders do not occur
9199			me._bufferedRender = true;
9200			me._bufferedRequest = null;
9201
9202			var changed = me.handleEvent(e);
9203			// for smooth tooltip animations issue #4989
9204			// the tooltip should be the source of change
9205			// Animation check workaround:
9206			// tooltip._start will be null when tooltip isn't animating
9207			if (tooltip) {
9208				changed = tooltip._start
9209					? tooltip.handleEvent(e)
9210					: changed | tooltip.handleEvent(e);
9211			}
9212
9213			plugins.notify(me, 'afterEvent', [e]);
9214
9215			var bufferedRequest = me._bufferedRequest;
9216			if (bufferedRequest) {
9217				// If we have an update that was triggered, we need to do a normal render
9218				me.render(bufferedRequest);
9219			} else if (changed && !me.animating) {
9220				// If entering, leaving, or changing elements, animate the change via pivot
9221				me.stop();
9222
9223				// We only need to render at this point. Updating will cause scales to be
9224				// recomputed generating flicker & using more memory than necessary.
9225				me.render({
9226					duration: me.options.hover.animationDuration,
9227					lazy: true
9228				});
9229			}
9230
9231			me._bufferedRender = false;
9232			me._bufferedRequest = null;
9233
9234			return me;
9235		},
9236
9237		/**
9238		 * Handle an event
9239		 * @private
9240		 * @param {IEvent} event the event to handle
9241		 * @return {Boolean} true if the chart needs to re-render
9242		 */
9243		handleEvent: function(e) {
9244			var me = this;
9245			var options = me.options || {};
9246			var hoverOptions = options.hover;
9247			var changed = false;
9248
9249			me.lastActive = me.lastActive || [];
9250
9251			// Find Active Elements for hover and tooltips
9252			if (e.type === 'mouseout') {
9253				me.active = [];
9254			} else {
9255				me.active = me.getElementsAtEventForMode(e, hoverOptions.mode, hoverOptions);
9256			}
9257
9258			// Invoke onHover hook
9259			// Need to call with native event here to not break backwards compatibility
9260			helpers.callback(options.onHover || options.hover.onHover, [e.native, me.active], me);
9261
9262			if (e.type === 'mouseup' || e.type === 'click') {
9263				if (options.onClick) {
9264					// Use e.native here for backwards compatibility
9265					options.onClick.call(me, e.native, me.active);
9266				}
9267			}
9268
9269			// Remove styling for last active (even if it may still be active)
9270			if (me.lastActive.length) {
9271				me.updateHoverStyle(me.lastActive, hoverOptions.mode, false);
9272			}
9273
9274			// Built in hover styling
9275			if (me.active.length && hoverOptions.mode) {
9276				me.updateHoverStyle(me.active, hoverOptions.mode, true);
9277			}
9278
9279			changed = !helpers.arrayEquals(me.active, me.lastActive);
9280
9281			// Remember Last Actives
9282			me.lastActive = me.active;
9283
9284			return changed;
9285		}
9286	});
9287
9288	/**
9289	 * Provided for backward compatibility, use Chart instead.
9290	 * @class Chart.Controller
9291	 * @deprecated since version 2.6.0
9292	 * @todo remove at version 3
9293	 * @private
9294	 */
9295	Chart.Controller = Chart;
9296};
9297
9298},{"22":22,"23":23,"26":26,"29":29,"31":31,"32":32,"34":34,"36":36,"46":46,"49":49}],25:[function(require,module,exports){
9299'use strict';
9300
9301var helpers = require(46);
9302
9303module.exports = function(Chart) {
9304
9305	var arrayEvents = ['push', 'pop', 'shift', 'splice', 'unshift'];
9306
9307	/**
9308	 * Hooks the array methods that add or remove values ('push', pop', 'shift', 'splice',
9309	 * 'unshift') and notify the listener AFTER the array has been altered. Listeners are
9310	 * called on the 'onData*' callbacks (e.g. onDataPush, etc.) with same arguments.
9311	 */
9312	function listenArrayEvents(array, listener) {
9313		if (array._chartjs) {
9314			array._chartjs.listeners.push(listener);
9315			return;
9316		}
9317
9318		Object.defineProperty(array, '_chartjs', {
9319			configurable: true,
9320			enumerable: false,
9321			value: {
9322				listeners: [listener]
9323			}
9324		});
9325
9326		arrayEvents.forEach(function(key) {
9327			var method = 'onData' + key.charAt(0).toUpperCase() + key.slice(1);
9328			var base = array[key];
9329
9330			Object.defineProperty(array, key, {
9331				configurable: true,
9332				enumerable: false,
9333				value: function() {
9334					var args = Array.prototype.slice.call(arguments);
9335					var res = base.apply(this, args);
9336
9337					helpers.each(array._chartjs.listeners, function(object) {
9338						if (typeof object[method] === 'function') {
9339							object[method].apply(object, args);
9340						}
9341					});
9342
9343					return res;
9344				}
9345			});
9346		});
9347	}
9348
9349	/**
9350	 * Removes the given array event listener and cleanup extra attached properties (such as
9351	 * the _chartjs stub and overridden methods) if array doesn't have any more listeners.
9352	 */
9353	function unlistenArrayEvents(array, listener) {
9354		var stub = array._chartjs;
9355		if (!stub) {
9356			return;
9357		}
9358
9359		var listeners = stub.listeners;
9360		var index = listeners.indexOf(listener);
9361		if (index !== -1) {
9362			listeners.splice(index, 1);
9363		}
9364
9365		if (listeners.length > 0) {
9366			return;
9367		}
9368
9369		arrayEvents.forEach(function(key) {
9370			delete array[key];
9371		});
9372
9373		delete array._chartjs;
9374	}
9375
9376	// Base class for all dataset controllers (line, bar, etc)
9377	Chart.DatasetController = function(chart, datasetIndex) {
9378		this.initialize(chart, datasetIndex);
9379	};
9380
9381	helpers.extend(Chart.DatasetController.prototype, {
9382
9383		/**
9384		 * Element type used to generate a meta dataset (e.g. Chart.element.Line).
9385		 * @type {Chart.core.element}
9386		 */
9387		datasetElementType: null,
9388
9389		/**
9390		 * Element type used to generate a meta data (e.g. Chart.element.Point).
9391		 * @type {Chart.core.element}
9392		 */
9393		dataElementType: null,
9394
9395		initialize: function(chart, datasetIndex) {
9396			var me = this;
9397			me.chart = chart;
9398			me.index = datasetIndex;
9399			me.linkScales();
9400			me.addElements();
9401		},
9402
9403		updateIndex: function(datasetIndex) {
9404			this.index = datasetIndex;
9405		},
9406
9407		linkScales: function() {
9408			var me = this;
9409			var meta = me.getMeta();
9410			var dataset = me.getDataset();
9411
9412			if (meta.xAxisID === null || !(meta.xAxisID in me.chart.scales)) {
9413				meta.xAxisID = dataset.xAxisID || me.chart.options.scales.xAxes[0].id;
9414			}
9415			if (meta.yAxisID === null || !(meta.yAxisID in me.chart.scales)) {
9416				meta.yAxisID = dataset.yAxisID || me.chart.options.scales.yAxes[0].id;
9417			}
9418		},
9419
9420		getDataset: function() {
9421			return this.chart.data.datasets[this.index];
9422		},
9423
9424		getMeta: function() {
9425			return this.chart.getDatasetMeta(this.index);
9426		},
9427
9428		getScaleForId: function(scaleID) {
9429			return this.chart.scales[scaleID];
9430		},
9431
9432		reset: function() {
9433			this.update(true);
9434		},
9435
9436		/**
9437		 * @private
9438		 */
9439		destroy: function() {
9440			if (this._data) {
9441				unlistenArrayEvents(this._data, this);
9442			}
9443		},
9444
9445		createMetaDataset: function() {
9446			var me = this;
9447			var type = me.datasetElementType;
9448			return type && new type({
9449				_chart: me.chart,
9450				_datasetIndex: me.index
9451			});
9452		},
9453
9454		createMetaData: function(index) {
9455			var me = this;
9456			var type = me.dataElementType;
9457			return type && new type({
9458				_chart: me.chart,
9459				_datasetIndex: me.index,
9460				_index: index
9461			});
9462		},
9463
9464		addElements: function() {
9465			var me = this;
9466			var meta = me.getMeta();
9467			var data = me.getDataset().data || [];
9468			var metaData = meta.data;
9469			var i, ilen;
9470
9471			for (i = 0, ilen = data.length; i < ilen; ++i) {
9472				metaData[i] = metaData[i] || me.createMetaData(i);
9473			}
9474
9475			meta.dataset = meta.dataset || me.createMetaDataset();
9476		},
9477
9478		addElementAndReset: function(index) {
9479			var element = this.createMetaData(index);
9480			this.getMeta().data.splice(index, 0, element);
9481			this.updateElement(element, index, true);
9482		},
9483
9484		buildOrUpdateElements: function() {
9485			var me = this;
9486			var dataset = me.getDataset();
9487			var data = dataset.data || (dataset.data = []);
9488
9489			// In order to correctly handle data addition/deletion animation (an thus simulate
9490			// real-time charts), we need to monitor these data modifications and synchronize
9491			// the internal meta data accordingly.
9492			if (me._data !== data) {
9493				if (me._data) {
9494					// This case happens when the user replaced the data array instance.
9495					unlistenArrayEvents(me._data, me);
9496				}
9497
9498				listenArrayEvents(data, me);
9499				me._data = data;
9500			}
9501
9502			// Re-sync meta data in case the user replaced the data array or if we missed
9503			// any updates and so make sure that we handle number of datapoints changing.
9504			me.resyncElements();
9505		},
9506
9507		update: helpers.noop,
9508
9509		transition: function(easingValue) {
9510			var meta = this.getMeta();
9511			var elements = meta.data || [];
9512			var ilen = elements.length;
9513			var i = 0;
9514
9515			for (; i < ilen; ++i) {
9516				elements[i].transition(easingValue);
9517			}
9518
9519			if (meta.dataset) {
9520				meta.dataset.transition(easingValue);
9521			}
9522		},
9523
9524		draw: function() {
9525			var meta = this.getMeta();
9526			var elements = meta.data || [];
9527			var ilen = elements.length;
9528			var i = 0;
9529
9530			if (meta.dataset) {
9531				meta.dataset.draw();
9532			}
9533
9534			for (; i < ilen; ++i) {
9535				elements[i].draw();
9536			}
9537		},
9538
9539		removeHoverStyle: function(element) {
9540			helpers.merge(element._model, element.$previousStyle || {});
9541			delete element.$previousStyle;
9542		},
9543
9544		setHoverStyle: function(element) {
9545			var dataset = this.chart.data.datasets[element._datasetIndex];
9546			var index = element._index;
9547			var custom = element.custom || {};
9548			var valueOrDefault = helpers.valueAtIndexOrDefault;
9549			var getHoverColor = helpers.getHoverColor;
9550			var model = element._model;
9551
9552			element.$previousStyle = {
9553				backgroundColor: model.backgroundColor,
9554				borderColor: model.borderColor,
9555				borderWidth: model.borderWidth
9556			};
9557
9558			model.backgroundColor = custom.hoverBackgroundColor ? custom.hoverBackgroundColor : valueOrDefault(dataset.hoverBackgroundColor, index, getHoverColor(model.backgroundColor));
9559			model.borderColor = custom.hoverBorderColor ? custom.hoverBorderColor : valueOrDefault(dataset.hoverBorderColor, index, getHoverColor(model.borderColor));
9560			model.borderWidth = custom.hoverBorderWidth ? custom.hoverBorderWidth : valueOrDefault(dataset.hoverBorderWidth, index, model.borderWidth);
9561		},
9562
9563		/**
9564		 * @private
9565		 */
9566		resyncElements: function() {
9567			var me = this;
9568			var meta = me.getMeta();
9569			var data = me.getDataset().data;
9570			var numMeta = meta.data.length;
9571			var numData = data.length;
9572
9573			if (numData < numMeta) {
9574				meta.data.splice(numData, numMeta - numData);
9575			} else if (numData > numMeta) {
9576				me.insertElements(numMeta, numData - numMeta);
9577			}
9578		},
9579
9580		/**
9581		 * @private
9582		 */
9583		insertElements: function(start, count) {
9584			for (var i = 0; i < count; ++i) {
9585				this.addElementAndReset(start + i);
9586			}
9587		},
9588
9589		/**
9590		 * @private
9591		 */
9592		onDataPush: function() {
9593			this.insertElements(this.getDataset().data.length - 1, arguments.length);
9594		},
9595
9596		/**
9597		 * @private
9598		 */
9599		onDataPop: function() {
9600			this.getMeta().data.pop();
9601		},
9602
9603		/**
9604		 * @private
9605		 */
9606		onDataShift: function() {
9607			this.getMeta().data.shift();
9608		},
9609
9610		/**
9611		 * @private
9612		 */
9613		onDataSplice: function(start, count) {
9614			this.getMeta().data.splice(start, count);
9615			this.insertElements(start, arguments.length - 2);
9616		},
9617
9618		/**
9619		 * @private
9620		 */
9621		onDataUnshift: function() {
9622			this.insertElements(0, arguments.length);
9623		}
9624	});
9625
9626	Chart.DatasetController.extend = helpers.inherits;
9627};
9628
9629},{"46":46}],26:[function(require,module,exports){
9630'use strict';
9631
9632var helpers = require(46);
9633
9634module.exports = {
9635	/**
9636	 * @private
9637	 */
9638	_set: function(scope, values) {
9639		return helpers.merge(this[scope] || (this[scope] = {}), values);
9640	}
9641};
9642
9643},{"46":46}],27:[function(require,module,exports){
9644'use strict';
9645
9646var color = require(2);
9647var helpers = require(46);
9648
9649function interpolate(start, view, model, ease) {
9650	var keys = Object.keys(model);
9651	var i, ilen, key, actual, origin, target, type, c0, c1;
9652
9653	for (i = 0, ilen = keys.length; i < ilen; ++i) {
9654		key = keys[i];
9655
9656		target = model[key];
9657
9658		// if a value is added to the model after pivot() has been called, the view
9659		// doesn't contain it, so let's initialize the view to the target value.
9660		if (!view.hasOwnProperty(key)) {
9661			view[key] = target;
9662		}
9663
9664		actual = view[key];
9665
vendor: 30,038 bytes, lines 9666-10637
9666		if (actual === target || key[0] === '_') {
9667			continue;
9668		}
9669
9670		if (!start.hasOwnProperty(key)) {
9671			start[key] = actual;
9672		}
9673
9674		origin = start[key];
9675
9676		type = typeof target;
9677
9678		if (type === typeof origin) {
9679			if (type === 'string') {
9680				c0 = color(origin);
9681				if (c0.valid) {
9682					c1 = color(target);
9683					if (c1.valid) {
9684						view[key] = c1.mix(c0, ease).rgbString();
9685						continue;
9686					}
9687				}
9688			} else if (type === 'number' && isFinite(origin) && isFinite(target)) {
9689				view[key] = origin + (target - origin) * ease;
9690				continue;
9691			}
9692		}
9693
9694		view[key] = target;
9695	}
9696}
9697
9698var Element = function(configuration) {
9699	helpers.extend(this, configuration);
9700	this.initialize.apply(this, arguments);
9701};
9702
9703helpers.extend(Element.prototype, {
9704
9705	initialize: function() {
9706		this.hidden = false;
9707	},
9708
9709	pivot: function() {
9710		var me = this;
9711		if (!me._view) {
9712			me._view = helpers.clone(me._model);
9713		}
9714		me._start = {};
9715		return me;
9716	},
9717
9718	transition: function(ease) {
9719		var me = this;
9720		var model = me._model;
9721		var start = me._start;
9722		var view = me._view;
9723
9724		// No animation -> No Transition
9725		if (!model || ease === 1) {
9726			me._view = model;
9727			me._start = null;
9728			return me;
9729		}
9730
9731		if (!view) {
9732			view = me._view = {};
9733		}
9734
9735		if (!start) {
9736			start = me._start = {};
9737		}
9738
9739		interpolate(start, view, model, ease);
9740
9741		return me;
9742	},
9743
9744	tooltipPosition: function() {
9745		return {
9746			x: this._model.x,
9747			y: this._model.y
9748		};
9749	},
9750
9751	hasValue: function() {
9752		return helpers.isNumber(this._model.x) && helpers.isNumber(this._model.y);
9753	}
9754});
9755
9756Element.extend = helpers.inherits;
9757
9758module.exports = Element;
9759
9760},{"2":2,"46":46}],28:[function(require,module,exports){
9761/* global window: false */
9762/* global document: false */
9763'use strict';
9764
9765var color = require(2);
9766var defaults = require(26);
9767var helpers = require(46);
9768var scaleService = require(34);
9769
9770module.exports = function() {
9771
9772	// -- Basic js utility methods
9773
9774	helpers.configMerge = function(/* objects ... */) {
9775		return helpers.merge(helpers.clone(arguments[0]), [].slice.call(arguments, 1), {
9776			merger: function(key, target, source, options) {
9777				var tval = target[key] || {};
9778				var sval = source[key];
9779
9780				if (key === 'scales') {
9781					// scale config merging is complex. Add our own function here for that
9782					target[key] = helpers.scaleMerge(tval, sval);
9783				} else if (key === 'scale') {
9784					// used in polar area & radar charts since there is only one scale
9785					target[key] = helpers.merge(tval, [scaleService.getScaleDefaults(sval.type), sval]);
9786				} else {
9787					helpers._merger(key, target, source, options);
9788				}
9789			}
9790		});
9791	};
9792
9793	helpers.scaleMerge = function(/* objects ... */) {
9794		return helpers.merge(helpers.clone(arguments[0]), [].slice.call(arguments, 1), {
9795			merger: function(key, target, source, options) {
9796				if (key === 'xAxes' || key === 'yAxes') {
9797					var slen = source[key].length;
9798					var i, type, scale;
9799
9800					if (!target[key]) {
9801						target[key] = [];
9802					}
9803
9804					for (i = 0; i < slen; ++i) {
9805						scale = source[key][i];
9806						type = helpers.valueOrDefault(scale.type, key === 'xAxes' ? 'category' : 'linear');
9807
9808						if (i >= target[key].length) {
9809							target[key].push({});
9810						}
9811
9812						if (!target[key][i].type || (scale.type && scale.type !== target[key][i].type)) {
9813							// new/untyped scale or type changed: let's apply the new defaults
9814							// then merge source scale to correctly overwrite the defaults.
9815							helpers.merge(target[key][i], [scaleService.getScaleDefaults(type), scale]);
9816						} else {
9817							// scales type are the same
9818							helpers.merge(target[key][i], scale);
9819						}
9820					}
9821				} else {
9822					helpers._merger(key, target, source, options);
9823				}
9824			}
9825		});
9826	};
9827
9828	helpers.where = function(collection, filterCallback) {
9829		if (helpers.isArray(collection) && Array.prototype.filter) {
9830			return collection.filter(filterCallback);
9831		}
9832		var filtered = [];
9833
9834		helpers.each(collection, function(item) {
9835			if (filterCallback(item)) {
9836				filtered.push(item);
9837			}
9838		});
9839
9840		return filtered;
9841	};
9842	helpers.findIndex = Array.prototype.findIndex ?
9843		function(array, callback, scope) {
9844			return array.findIndex(callback, scope);
9845		} :
9846		function(array, callback, scope) {
9847			scope = scope === undefined ? array : scope;
9848			for (var i = 0, ilen = array.length; i < ilen; ++i) {
9849				if (callback.call(scope, array[i], i, array)) {
9850					return i;
9851				}
9852			}
9853			return -1;
9854		};
9855	helpers.findNextWhere = function(arrayToSearch, filterCallback, startIndex) {
9856		// Default to start of the array
9857		if (helpers.isNullOrUndef(startIndex)) {
9858			startIndex = -1;
9859		}
9860		for (var i = startIndex + 1; i < arrayToSearch.length; i++) {
9861			var currentItem = arrayToSearch[i];
9862			if (filterCallback(currentItem)) {
9863				return currentItem;
9864			}
9865		}
9866	};
9867	helpers.findPreviousWhere = function(arrayToSearch, filterCallback, startIndex) {
9868		// Default to end of the array
9869		if (helpers.isNullOrUndef(startIndex)) {
9870			startIndex = arrayToSearch.length;
9871		}
9872		for (var i = startIndex - 1; i >= 0; i--) {
9873			var currentItem = arrayToSearch[i];
9874			if (filterCallback(currentItem)) {
9875				return currentItem;
9876			}
9877		}
9878	};
9879
9880	// -- Math methods
9881	helpers.isNumber = function(n) {
9882		return !isNaN(parseFloat(n)) && isFinite(n);
9883	};
9884	helpers.almostEquals = function(x, y, epsilon) {
9885		return Math.abs(x - y) < epsilon;
9886	};
9887	helpers.almostWhole = function(x, epsilon) {
9888		var rounded = Math.round(x);
9889		return (((rounded - epsilon) < x) && ((rounded + epsilon) > x));
9890	};
9891	helpers.max = function(array) {
9892		return array.reduce(function(max, value) {
9893			if (!isNaN(value)) {
9894				return Math.max(max, value);
9895			}
9896			return max;
9897		}, Number.NEGATIVE_INFINITY);
9898	};
9899	helpers.min = function(array) {
9900		return array.reduce(function(min, value) {
9901			if (!isNaN(value)) {
9902				return Math.min(min, value);
9903			}
9904			return min;
9905		}, Number.POSITIVE_INFINITY);
9906	};
9907	helpers.sign = Math.sign ?
9908		function(x) {
9909			return Math.sign(x);
9910		} :
9911		function(x) {
9912			x = +x; // convert to a number
9913			if (x === 0 || isNaN(x)) {
9914				return x;
9915			}
9916			return x > 0 ? 1 : -1;
9917		};
9918	helpers.log10 = Math.log10 ?
9919		function(x) {
9920			return Math.log10(x);
9921		} :
9922		function(x) {
9923			var exponent = Math.log(x) * Math.LOG10E; // Math.LOG10E = 1 / Math.LN10.
9924			// Check for whole powers of 10,
9925			// which due to floating point rounding error should be corrected.
9926			var powerOf10 = Math.round(exponent);
9927			var isPowerOf10 = x === Math.pow(10, powerOf10);
9928
9929			return isPowerOf10 ? powerOf10 : exponent;
9930		};
9931	helpers.toRadians = function(degrees) {
9932		return degrees * (Math.PI / 180);
9933	};
9934	helpers.toDegrees = function(radians) {
9935		return radians * (180 / Math.PI);
9936	};
9937	// Gets the angle from vertical upright to the point about a centre.
9938	helpers.getAngleFromPoint = function(centrePoint, anglePoint) {
9939		var distanceFromXCenter = anglePoint.x - centrePoint.x;
9940		var distanceFromYCenter = anglePoint.y - centrePoint.y;
9941		var radialDistanceFromCenter = Math.sqrt(distanceFromXCenter * distanceFromXCenter + distanceFromYCenter * distanceFromYCenter);
9942
9943		var angle = Math.atan2(distanceFromYCenter, distanceFromXCenter);
9944
9945		if (angle < (-0.5 * Math.PI)) {
9946			angle += 2.0 * Math.PI; // make sure the returned angle is in the range of (-PI/2, 3PI/2]
9947		}
9948
9949		return {
9950			angle: angle,
9951			distance: radialDistanceFromCenter
9952		};
9953	};
9954	helpers.distanceBetweenPoints = function(pt1, pt2) {
9955		return Math.sqrt(Math.pow(pt2.x - pt1.x, 2) + Math.pow(pt2.y - pt1.y, 2));
9956	};
9957	helpers.aliasPixel = function(pixelWidth) {
9958		return (pixelWidth % 2 === 0) ? 0 : 0.5;
9959	};
9960	helpers.splineCurve = function(firstPoint, middlePoint, afterPoint, t) {
9961		// Props to Rob Spencer at scaled innovation for his post on splining between points
9962		// http://scaledinnovation.com/analytics/splines/aboutSplines.html
9963
9964		// This function must also respect "skipped" points
9965
9966		var previous = firstPoint.skip ? middlePoint : firstPoint;
9967		var current = middlePoint;
9968		var next = afterPoint.skip ? middlePoint : afterPoint;
9969
9970		var d01 = Math.sqrt(Math.pow(current.x - previous.x, 2) + Math.pow(current.y - previous.y, 2));
9971		var d12 = Math.sqrt(Math.pow(next.x - current.x, 2) + Math.pow(next.y - current.y, 2));
9972
9973		var s01 = d01 / (d01 + d12);
9974		var s12 = d12 / (d01 + d12);
9975
9976		// If all points are the same, s01 & s02 will be inf
9977		s01 = isNaN(s01) ? 0 : s01;
9978		s12 = isNaN(s12) ? 0 : s12;
9979
9980		var fa = t * s01; // scaling factor for triangle Ta
9981		var fb = t * s12;
9982
9983		return {
9984			previous: {
9985				x: current.x - fa * (next.x - previous.x),
9986				y: current.y - fa * (next.y - previous.y)
9987			},
9988			next: {
9989				x: current.x + fb * (next.x - previous.x),
9990				y: current.y + fb * (next.y - previous.y)
9991			}
9992		};
9993	};
9994	helpers.EPSILON = Number.EPSILON || 1e-14;
9995	helpers.splineCurveMonotone = function(points) {
9996		// This function calculates Bézier control points in a similar way than |splineCurve|,
9997		// but preserves monotonicity of the provided data and ensures no local extremums are added
9998		// between the dataset discrete points due to the interpolation.
9999		// See : https://en.wikipedia.org/wiki/Monotone_cubic_interpolation
10000
10001		var pointsWithTangents = (points || []).map(function(point) {
10002			return {
10003				model: point._model,
10004				deltaK: 0,
10005				mK: 0
10006			};
10007		});
10008
10009		// Calculate slopes (deltaK) and initialize tangents (mK)
10010		var pointsLen = pointsWithTangents.length;
10011		var i, pointBefore, pointCurrent, pointAfter;
10012		for (i = 0; i < pointsLen; ++i) {
10013			pointCurrent = pointsWithTangents[i];
10014			if (pointCurrent.model.skip) {
10015				continue;
10016			}
10017
10018			pointBefore = i > 0 ? pointsWithTangents[i - 1] : null;
10019			pointAfter = i < pointsLen - 1 ? pointsWithTangents[i + 1] : null;
10020			if (pointAfter && !pointAfter.model.skip) {
10021				var slopeDeltaX = (pointAfter.model.x - pointCurrent.model.x);
10022
10023				// In the case of two points that appear at the same x pixel, slopeDeltaX is 0
10024				pointCurrent.deltaK = slopeDeltaX !== 0 ? (pointAfter.model.y - pointCurrent.model.y) / slopeDeltaX : 0;
10025			}
10026
10027			if (!pointBefore || pointBefore.model.skip) {
10028				pointCurrent.mK = pointCurrent.deltaK;
10029			} else if (!pointAfter || pointAfter.model.skip) {
10030				pointCurrent.mK = pointBefore.deltaK;
10031			} else if (this.sign(pointBefore.deltaK) !== this.sign(pointCurrent.deltaK)) {
10032				pointCurrent.mK = 0;
10033			} else {
10034				pointCurrent.mK = (pointBefore.deltaK + pointCurrent.deltaK) / 2;
10035			}
10036		}
10037
10038		// Adjust tangents to ensure monotonic properties
10039		var alphaK, betaK, tauK, squaredMagnitude;
10040		for (i = 0; i < pointsLen - 1; ++i) {
10041			pointCurrent = pointsWithTangents[i];
10042			pointAfter = pointsWithTangents[i + 1];
10043			if (pointCurrent.model.skip || pointAfter.model.skip) {
10044				continue;
10045			}
10046
10047			if (helpers.almostEquals(pointCurrent.deltaK, 0, this.EPSILON)) {
10048				pointCurrent.mK = pointAfter.mK = 0;
10049				continue;
10050			}
10051
10052			alphaK = pointCurrent.mK / pointCurrent.deltaK;
10053			betaK = pointAfter.mK / pointCurrent.deltaK;
10054			squaredMagnitude = Math.pow(alphaK, 2) + Math.pow(betaK, 2);
10055			if (squaredMagnitude <= 9) {
10056				continue;
10057			}
10058
10059			tauK = 3 / Math.sqrt(squaredMagnitude);
10060			pointCurrent.mK = alphaK * tauK * pointCurrent.deltaK;
10061			pointAfter.mK = betaK * tauK * pointCurrent.deltaK;
10062		}
10063
10064		// Compute control points
10065		var deltaX;
10066		for (i = 0; i < pointsLen; ++i) {
10067			pointCurrent = pointsWithTangents[i];
10068			if (pointCurrent.model.skip) {
10069				continue;
10070			}
10071
10072			pointBefore = i > 0 ? pointsWithTangents[i - 1] : null;
10073			pointAfter = i < pointsLen - 1 ? pointsWithTangents[i + 1] : null;
10074			if (pointBefore && !pointBefore.model.skip) {
10075				deltaX = (pointCurrent.model.x - pointBefore.model.x) / 3;
10076				pointCurrent.model.controlPointPreviousX = pointCurrent.model.x - deltaX;
10077				pointCurrent.model.controlPointPreviousY = pointCurrent.model.y - deltaX * pointCurrent.mK;
10078			}
10079			if (pointAfter && !pointAfter.model.skip) {
10080				deltaX = (pointAfter.model.x - pointCurrent.model.x) / 3;
10081				pointCurrent.model.controlPointNextX = pointCurrent.model.x + deltaX;
10082				pointCurrent.model.controlPointNextY = pointCurrent.model.y + deltaX * pointCurrent.mK;
10083			}
10084		}
10085	};
10086	helpers.nextItem = function(collection, index, loop) {
10087		if (loop) {
10088			return index >= collection.length - 1 ? collection[0] : collection[index + 1];
10089		}
10090		return index >= collection.length - 1 ? collection[collection.length - 1] : collection[index + 1];
10091	};
10092	helpers.previousItem = function(collection, index, loop) {
10093		if (loop) {
10094			return index <= 0 ? collection[collection.length - 1] : collection[index - 1];
10095		}
10096		return index <= 0 ? collection[0] : collection[index - 1];
10097	};
10098	// Implementation of the nice number algorithm used in determining where axis labels will go
10099	helpers.niceNum = function(range, round) {
10100		var exponent = Math.floor(helpers.log10(range));
10101		var fraction = range / Math.pow(10, exponent);
10102		var niceFraction;
10103
10104		if (round) {
10105			if (fraction < 1.5) {
10106				niceFraction = 1;
10107			} else if (fraction < 3) {
10108				niceFraction = 2;
10109			} else if (fraction < 7) {
10110				niceFraction = 5;
10111			} else {
10112				niceFraction = 10;
10113			}
10114		} else if (fraction <= 1.0) {
10115			niceFraction = 1;
10116		} else if (fraction <= 2) {
10117			niceFraction = 2;
10118		} else if (fraction <= 5) {
10119			niceFraction = 5;
10120		} else {
10121			niceFraction = 10;
10122		}
10123
10124		return niceFraction * Math.pow(10, exponent);
10125	};
10126	// Request animation polyfill - http://www.paulirish.com/2011/requestanimationframe-for-smart-animating/
10127	helpers.requestAnimFrame = (function() {
10128		if (typeof window === 'undefined') {
10129			return function(callback) {
10130				callback();
10131			};
10132		}
10133		return window.requestAnimationFrame ||
10134			window.webkitRequestAnimationFrame ||
10135			window.mozRequestAnimationFrame ||
10136			window.oRequestAnimationFrame ||
10137			window.msRequestAnimationFrame ||
10138			function(callback) {
10139				return window.setTimeout(callback, 1000 / 60);
10140			};
10141	}());
10142	// -- DOM methods
10143	helpers.getRelativePosition = function(evt, chart) {
10144		var mouseX, mouseY;
10145		var e = evt.originalEvent || evt;
10146		var canvas = evt.target || evt.srcElement;
10147		var boundingRect = canvas.getBoundingClientRect();
10148
10149		var touches = e.touches;
10150		if (touches && touches.length > 0) {
10151			mouseX = touches[0].clientX;
10152			mouseY = touches[0].clientY;
10153
10154		} else {
10155			mouseX = e.clientX;
10156			mouseY = e.clientY;
10157		}
10158
10159		// Scale mouse coordinates into canvas coordinates
10160		// by following the pattern laid out by 'jerryj' in the comments of
10161		// http://www.html5canvastutorials.com/advanced/html5-canvas-mouse-coordinates/
10162		var paddingLeft = parseFloat(helpers.getStyle(canvas, 'padding-left'));
10163		var paddingTop = parseFloat(helpers.getStyle(canvas, 'padding-top'));
10164		var paddingRight = parseFloat(helpers.getStyle(canvas, 'padding-right'));
10165		var paddingBottom = parseFloat(helpers.getStyle(canvas, 'padding-bottom'));
10166		var width = boundingRect.right - boundingRect.left - paddingLeft - paddingRight;
10167		var height = boundingRect.bottom - boundingRect.top - paddingTop - paddingBottom;
10168
10169		// We divide by the current device pixel ratio, because the canvas is scaled up by that amount in each direction. However
10170		// the backend model is in unscaled coordinates. Since we are going to deal with our model coordinates, we go back here
10171		mouseX = Math.round((mouseX - boundingRect.left - paddingLeft) / (width) * canvas.width / chart.currentDevicePixelRatio);
10172		mouseY = Math.round((mouseY - boundingRect.top - paddingTop) / (height) * canvas.height / chart.currentDevicePixelRatio);
10173
10174		return {
10175			x: mouseX,
10176			y: mouseY
10177		};
10178
10179	};
10180
10181	// Private helper function to convert max-width/max-height values that may be percentages into a number
10182	function parseMaxStyle(styleValue, node, parentProperty) {
10183		var valueInPixels;
10184		if (typeof styleValue === 'string') {
10185			valueInPixels = parseInt(styleValue, 10);
10186
10187			if (styleValue.indexOf('%') !== -1) {
10188				// percentage * size in dimension
10189				valueInPixels = valueInPixels / 100 * node.parentNode[parentProperty];
10190			}
10191		} else {
10192			valueInPixels = styleValue;
10193		}
10194
10195		return valueInPixels;
10196	}
10197
10198	/**
10199	 * Returns if the given value contains an effective constraint.
10200	 * @private
10201	 */
10202	function isConstrainedValue(value) {
10203		return value !== undefined && value !== null && value !== 'none';
10204	}
10205
10206	// Private helper to get a constraint dimension
10207	// @param domNode : the node to check the constraint on
10208	// @param maxStyle : the style that defines the maximum for the direction we are using (maxWidth / maxHeight)
10209	// @param percentageProperty : property of parent to use when calculating width as a percentage
10210	// @see http://www.nathanaeljones.com/blog/2013/reading-max-width-cross-browser
10211	function getConstraintDimension(domNode, maxStyle, percentageProperty) {
10212		var view = document.defaultView;
10213		var parentNode = helpers._getParentNode(domNode);
10214		var constrainedNode = view.getComputedStyle(domNode)[maxStyle];
10215		var constrainedContainer = view.getComputedStyle(parentNode)[maxStyle];
10216		var hasCNode = isConstrainedValue(constrainedNode);
10217		var hasCContainer = isConstrainedValue(constrainedContainer);
10218		var infinity = Number.POSITIVE_INFINITY;
10219
10220		if (hasCNode || hasCContainer) {
10221			return Math.min(
10222				hasCNode ? parseMaxStyle(constrainedNode, domNode, percentageProperty) : infinity,
10223				hasCContainer ? parseMaxStyle(constrainedContainer, parentNode, percentageProperty) : infinity);
10224		}
10225
10226		return 'none';
10227	}
10228	// returns Number or undefined if no constraint
10229	helpers.getConstraintWidth = function(domNode) {
10230		return getConstraintDimension(domNode, 'max-width', 'clientWidth');
10231	};
10232	// returns Number or undefined if no constraint
10233	helpers.getConstraintHeight = function(domNode) {
10234		return getConstraintDimension(domNode, 'max-height', 'clientHeight');
10235	};
10236	/**
10237	 * @private
10238 	 */
10239	helpers._calculatePadding = function(container, padding, parentDimension) {
10240		padding = helpers.getStyle(container, padding);
10241
10242		return padding.indexOf('%') > -1 ? parentDimension / parseInt(padding, 10) : parseInt(padding, 10);
10243	};
10244	/**
10245	 * @private
10246	 */
10247	helpers._getParentNode = function(domNode) {
10248		var parent = domNode.parentNode;
10249		if (parent && parent.host) {
10250			parent = parent.host;
10251		}
10252		return parent;
10253	};
10254	helpers.getMaximumWidth = function(domNode) {
10255		var container = helpers._getParentNode(domNode);
10256		if (!container) {
10257			return domNode.clientWidth;
10258		}
10259
10260		var clientWidth = container.clientWidth;
10261		var paddingLeft = helpers._calculatePadding(container, 'padding-left', clientWidth);
10262		var paddingRight = helpers._calculatePadding(container, 'padding-right', clientWidth);
10263
10264		var w = clientWidth - paddingLeft - paddingRight;
10265		var cw = helpers.getConstraintWidth(domNode);
10266		return isNaN(cw) ? w : Math.min(w, cw);
10267	};
10268	helpers.getMaximumHeight = function(domNode) {
10269		var container = helpers._getParentNode(domNode);
10270		if (!container) {
10271			return domNode.clientHeight;
10272		}
10273
10274		var clientHeight = container.clientHeight;
10275		var paddingTop = helpers._calculatePadding(container, 'padding-top', clientHeight);
10276		var paddingBottom = helpers._calculatePadding(container, 'padding-bottom', clientHeight);
10277
10278		var h = clientHeight - paddingTop - paddingBottom;
10279		var ch = helpers.getConstraintHeight(domNode);
10280		return isNaN(ch) ? h : Math.min(h, ch);
10281	};
10282	helpers.getStyle = function(el, property) {
10283		return el.currentStyle ?
10284			el.currentStyle[property] :
10285			document.defaultView.getComputedStyle(el, null).getPropertyValue(property);
10286	};
10287	helpers.retinaScale = function(chart, forceRatio) {
10288		var pixelRatio = chart.currentDevicePixelRatio = forceRatio || (typeof window !== 'undefined' && window.devicePixelRatio) || 1;
10289		if (pixelRatio === 1) {
10290			return;
10291		}
10292
10293		var canvas = chart.canvas;
10294		var height = chart.height;
10295		var width = chart.width;
10296
10297		canvas.height = height * pixelRatio;
10298		canvas.width = width * pixelRatio;
10299		chart.ctx.scale(pixelRatio, pixelRatio);
10300
10301		// If no style has been set on the canvas, the render size is used as display size,
10302		// making the chart visually bigger, so let's enforce it to the "correct" values.
10303		// See https://github.com/chartjs/Chart.js/issues/3575
10304		if (!canvas.style.height && !canvas.style.width) {
10305			canvas.style.height = height + 'px';
10306			canvas.style.width = width + 'px';
10307		}
10308	};
10309	// -- Canvas methods
10310	helpers.fontString = function(pixelSize, fontStyle, fontFamily) {
10311		return fontStyle + ' ' + pixelSize + 'px ' + fontFamily;
10312	};
10313	helpers.longestText = function(ctx, font, arrayOfThings, cache) {
10314		cache = cache || {};
10315		var data = cache.data = cache.data || {};
10316		var gc = cache.garbageCollect = cache.garbageCollect || [];
10317
10318		if (cache.font !== font) {
10319			data = cache.data = {};
10320			gc = cache.garbageCollect = [];
10321			cache.font = font;
10322		}
10323
10324		ctx.font = font;
10325		var longest = 0;
10326		helpers.each(arrayOfThings, function(thing) {
10327			// Undefined strings and arrays should not be measured
10328			if (thing !== undefined && thing !== null && helpers.isArray(thing) !== true) {
10329				longest = helpers.measureText(ctx, data, gc, longest, thing);
10330			} else if (helpers.isArray(thing)) {
10331				// if it is an array lets measure each element
10332				// to do maybe simplify this function a bit so we can do this more recursively?
10333				helpers.each(thing, function(nestedThing) {
10334					// Undefined strings and arrays should not be measured
10335					if (nestedThing !== undefined && nestedThing !== null && !helpers.isArray(nestedThing)) {
10336						longest = helpers.measureText(ctx, data, gc, longest, nestedThing);
10337					}
10338				});
10339			}
10340		});
10341
10342		var gcLen = gc.length / 2;
10343		if (gcLen > arrayOfThings.length) {
10344			for (var i = 0; i < gcLen; i++) {
10345				delete data[gc[i]];
10346			}
10347			gc.splice(0, gcLen);
10348		}
10349		return longest;
10350	};
10351	helpers.measureText = function(ctx, data, gc, longest, string) {
10352		var textWidth = data[string];
10353		if (!textWidth) {
10354			textWidth = data[string] = ctx.measureText(string).width;
10355			gc.push(string);
10356		}
10357		if (textWidth > longest) {
10358			longest = textWidth;
10359		}
10360		return longest;
10361	};
10362	helpers.numberOfLabelLines = function(arrayOfThings) {
10363		var numberOfLines = 1;
10364		helpers.each(arrayOfThings, function(thing) {
10365			if (helpers.isArray(thing)) {
10366				if (thing.length > numberOfLines) {
10367					numberOfLines = thing.length;
10368				}
10369			}
10370		});
10371		return numberOfLines;
10372	};
10373
10374	helpers.color = !color ?
10375		function(value) {
10376			console.error('Color.js not found!');
10377			return value;
10378		} :
10379		function(value) {
10380			/* global CanvasGradient */
10381			if (value instanceof CanvasGradient) {
10382				value = defaults.global.defaultColor;
10383			}
10384
10385			return color(value);
10386		};
10387
10388	helpers.getHoverColor = function(colorValue) {
10389		/* global CanvasPattern */
10390		return (colorValue instanceof CanvasPattern) ?
10391			colorValue :
10392			helpers.color(colorValue).saturate(0.5).darken(0.1).rgbString();
10393	};
10394};
10395
10396},{"2":2,"26":26,"34":34,"46":46}],29:[function(require,module,exports){
10397'use strict';
10398
10399var helpers = require(46);
10400
10401/**
10402 * Helper function to get relative position for an event
10403 * @param {Event|IEvent} event - The event to get the position for
10404 * @param {Chart} chart - The chart
10405 * @returns {Point} the event position
10406 */
10407function getRelativePosition(e, chart) {
10408	if (e.native) {
10409		return {
10410			x: e.x,
10411			y: e.y
10412		};
10413	}
10414
10415	return helpers.getRelativePosition(e, chart);
10416}
10417
10418/**
10419 * Helper function to traverse all of the visible elements in the chart
10420 * @param chart {chart} the chart
10421 * @param handler {Function} the callback to execute for each visible item
10422 */
10423function parseVisibleItems(chart, handler) {
10424	var datasets = chart.data.datasets;
10425	var meta, i, j, ilen, jlen;
10426
10427	for (i = 0, ilen = datasets.length; i < ilen; ++i) {
10428		if (!chart.isDatasetVisible(i)) {
10429			continue;
10430		}
10431
10432		meta = chart.getDatasetMeta(i);
10433		for (j = 0, jlen = meta.data.length; j < jlen; ++j) {
10434			var element = meta.data[j];
10435			if (!element._view.skip) {
10436				handler(element);
10437			}
10438		}
10439	}
10440}
10441
10442/**
10443 * Helper function to get the items that intersect the event position
10444 * @param items {ChartElement[]} elements to filter
10445 * @param position {Point} the point to be nearest to
10446 * @return {ChartElement[]} the nearest items
10447 */
10448function getIntersectItems(chart, position) {
10449	var elements = [];
10450
10451	parseVisibleItems(chart, function(element) {
10452		if (element.inRange(position.x, position.y)) {
10453			elements.push(element);
10454		}
10455	});
10456
10457	return elements;
10458}
10459
10460/**
10461 * Helper function to get the items nearest to the event position considering all visible items in teh chart
10462 * @param chart {Chart} the chart to look at elements from
10463 * @param position {Point} the point to be nearest to
10464 * @param intersect {Boolean} if true, only consider items that intersect the position
10465 * @param distanceMetric {Function} function to provide the distance between points
10466 * @return {ChartElement[]} the nearest items
10467 */
10468function getNearestItems(chart, position, intersect, distanceMetric) {
10469	var minDistance = Number.POSITIVE_INFINITY;
10470	var nearestItems = [];
10471
10472	parseVisibleItems(chart, function(element) {
10473		if (intersect && !element.inRange(position.x, position.y)) {
10474			return;
10475		}
10476
10477		var center = element.getCenterPoint();
10478		var distance = distanceMetric(position, center);
10479
10480		if (distance < minDistance) {
10481			nearestItems = [element];
10482			minDistance = distance;
10483		} else if (distance === minDistance) {
10484			// Can have multiple items at the same distance in which case we sort by size
10485			nearestItems.push(element);
10486		}
10487	});
10488
10489	return nearestItems;
10490}
10491
10492/**
10493 * Get a distance metric function for two points based on the
10494 * axis mode setting
10495 * @param {String} axis the axis mode. x|y|xy
10496 */
10497function getDistanceMetricForAxis(axis) {
10498	var useX = axis.indexOf('x') !== -1;
10499	var useY = axis.indexOf('y') !== -1;
10500
10501	return function(pt1, pt2) {
10502		var deltaX = useX ? Math.abs(pt1.x - pt2.x) : 0;
10503		var deltaY = useY ? Math.abs(pt1.y - pt2.y) : 0;
10504		return Math.sqrt(Math.pow(deltaX, 2) + Math.pow(deltaY, 2));
10505	};
10506}
10507
10508function indexMode(chart, e, options) {
10509	var position = getRelativePosition(e, chart);
10510	// Default axis for index mode is 'x' to match old behaviour
10511	options.axis = options.axis || 'x';
10512	var distanceMetric = getDistanceMetricForAxis(options.axis);
10513	var items = options.intersect ? getIntersectItems(chart, position) : getNearestItems(chart, position, false, distanceMetric);
10514	var elements = [];
10515
10516	if (!items.length) {
10517		return [];
10518	}
10519
10520	chart.data.datasets.forEach(function(dataset, datasetIndex) {
10521		if (chart.isDatasetVisible(datasetIndex)) {
10522			var meta = chart.getDatasetMeta(datasetIndex);
10523			var element = meta.data[items[0]._index];
10524
10525			// don't count items that are skipped (null data)
10526			if (element && !element._view.skip) {
10527				elements.push(element);
10528			}
10529		}
10530	});
10531
10532	return elements;
10533}
10534
10535/**
10536 * @interface IInteractionOptions
10537 */
10538/**
10539 * If true, only consider items that intersect the point
10540 * @name IInterfaceOptions#boolean
10541 * @type Boolean
10542 */
10543
10544/**
10545 * Contains interaction related functions
10546 * @namespace Chart.Interaction
10547 */
10548module.exports = {
10549	// Helper function for different modes
10550	modes: {
10551		single: function(chart, e) {
10552			var position = getRelativePosition(e, chart);
10553			var elements = [];
10554
10555			parseVisibleItems(chart, function(element) {
10556				if (element.inRange(position.x, position.y)) {
10557					elements.push(element);
10558					return elements;
10559				}
10560			});
10561
10562			return elements.slice(0, 1);
10563		},
10564
10565		/**
10566		 * @function Chart.Interaction.modes.label
10567		 * @deprecated since version 2.4.0
10568		 * @todo remove at version 3
10569		 * @private
10570		 */
10571		label: indexMode,
10572
10573		/**
10574		 * Returns items at the same index. If the options.intersect parameter is true, we only return items if we intersect something
10575		 * If the options.intersect mode is false, we find the nearest item and return the items at the same index as that item
10576		 * @function Chart.Interaction.modes.index
10577		 * @since v2.4.0
10578		 * @param chart {chart} the chart we are returning items from
10579		 * @param e {Event} the event we are find things at
10580		 * @param options {IInteractionOptions} options to use during interaction
10581		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
10582		 */
10583		index: indexMode,
10584
10585		/**
10586		 * Returns items in the same dataset. If the options.intersect parameter is true, we only return items if we intersect something
10587		 * If the options.intersect is false, we find the nearest item and return the items in that dataset
10588		 * @function Chart.Interaction.modes.dataset
10589		 * @param chart {chart} the chart we are returning items from
10590		 * @param e {Event} the event we are find things at
10591		 * @param options {IInteractionOptions} options to use during interaction
10592		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
10593		 */
10594		dataset: function(chart, e, options) {
10595			var position = getRelativePosition(e, chart);
10596			options.axis = options.axis || 'xy';
10597			var distanceMetric = getDistanceMetricForAxis(options.axis);
10598			var items = options.intersect ? getIntersectItems(chart, position) : getNearestItems(chart, position, false, distanceMetric);
10599
10600			if (items.length > 0) {
10601				items = chart.getDatasetMeta(items[0]._datasetIndex).data;
10602			}
10603
10604			return items;
10605		},
10606
10607		/**
10608		 * @function Chart.Interaction.modes.x-axis
10609		 * @deprecated since version 2.4.0. Use index mode and intersect == true
10610		 * @todo remove at version 3
10611		 * @private
10612		 */
10613		'x-axis': function(chart, e) {
10614			return indexMode(chart, e, {intersect: false});
10615		},
10616
10617		/**
10618		 * Point mode returns all elements that hit test based on the event position
10619		 * of the event
10620		 * @function Chart.Interaction.modes.intersect
10621		 * @param chart {chart} the chart we are returning items from
10622		 * @param e {Event} the event we are find things at
10623		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
10624		 */
10625		point: function(chart, e) {
10626			var position = getRelativePosition(e, chart);
10627			return getIntersectItems(chart, position);
10628		},
10629
10630		/**
10631		 * nearest mode returns the element closest to the point
10632		 * @function Chart.Interaction.modes.intersect
10633		 * @param chart {chart} the chart we are returning items from
10634		 * @param e {Event} the event we are find things at
10635		 * @param options {IInteractionOptions} options to use
10636		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
10637		 */
10638		nearest: function(chart, e, options) {
10639			var position = getRelativePosition(e, chart);
10640			options.axis = options.axis || 'xy';
10641			var distanceMetric = getDistanceMetricForAxis(options.axis);
10642			var nearestItems = getNearestItems(chart, position, options.intersect, distanceMetric);
10643
10644			// We have multiple items at the same distance from the event. Now sort by smallest
10645			if (nearestItems.length > 1) {
10646				nearestItems.sort(function(a, b) {
10647					var sizeA = a.getArea();
10648					var sizeB = b.getArea();
10649					var ret = sizeA - sizeB;
10650
10651					if (ret === 0) {
10652						// if equal sort by dataset index
10653						ret = a._datasetIndex - b._datasetIndex;
10654					}
10655
10656					return ret;
10657				});
10658			}
10659
10660			// Return only 1 item
10661			return nearestItems.slice(0, 1);
10662		},
10663
10664		/**
10665		 * x mode returns the elements that hit-test at the current x coordinate
10666		 * @function Chart.Interaction.modes.x
10667		 * @param chart {chart} the chart we are returning items from
10668		 * @param e {Event} the event we are find things at
10669		 * @param options {IInteractionOptions} options to use
10670		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
10671		 */
10672		x: function(chart, e, options) {
10673			var position = getRelativePosition(e, chart);
10674			var items = [];
10675			var intersectsItem = false;
10676
10677			parseVisibleItems(chart, function(element) {
10678				if (element.inXRange(position.x)) {
10679					items.push(element);
10680				}
10681
10682				if (element.inRange(position.x, position.y)) {
10683					intersectsItem = true;
10684				}
10685			});
10686
10687			// If we want to trigger on an intersect and we don't have any items
10688			// that intersect the position, return nothing
10689			if (options.intersect && !intersectsItem) {
10690				items = [];
10691			}
10692			return items;
10693		},
10694
10695		/**
10696		 * y mode returns the elements that hit-test at the current y coordinate
10697		 * @function Chart.Interaction.modes.y
10698		 * @param chart {chart} the chart we are returning items from
10699		 * @param e {Event} the event we are find things at
10700		 * @param options {IInteractionOptions} options to use
10701		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
10702		 */
10703		y: function(chart, e, options) {
10704			var position = getRelativePosition(e, chart);
10705			var items = [];
10706			var intersectsItem = false;
10707
10708			parseVisibleItems(chart, function(element) {
10709				if (element.inYRange(position.y)) {
10710					items.push(element);
10711				}
10712
10713				if (element.inRange(position.x, position.y)) {
10714					intersectsItem = true;
10715				}
10716			});
10717
10718			// If we want to trigger on an intersect and we don't have any items
10719			// that intersect the position, return nothing
10720			if (options.intersect && !intersectsItem) {
10721				items = [];
10722			}
10723			return items;
10724		}
10725	}
10726};
10727
10728},{"46":46}],30:[function(require,module,exports){
10729'use strict';
10730
10731var defaults = require(26);
10732
10733defaults._set('global', {
10734	responsive: true,
10735	responsiveAnimationDuration: 0,
10736	maintainAspectRatio: true,
10737	events: ['mousemove', 'mouseout', 'click', 'touchstart', 'touchmove'],
10738	hover: {
10739		onHover: null,
10740		mode: 'nearest',
10741		intersect: true,
10742		animationDuration: 400
10743	},
10744	onClick: null,
10745	defaultColor: 'rgba(0,0,0,0.1)',
10746	defaultFontColor: '#666',
10747	defaultFontFamily: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif",
10748	defaultFontSize: 12,
10749	defaultFontStyle: 'normal',
10750	showLines: true,
10751
10752	// Element defaults defined in element extensions
10753	elements: {},
10754
10755	// Layout options such as padding
10756	layout: {
10757		padding: {
10758			top: 0,
10759			right: 0,
10760			bottom: 0,
10761			left: 0
10762		}
10763	}
10764});
10765
10766module.exports = function() {
10767
10768	// Occupy the global variable of Chart, and create a simple base class
10769	var Chart = function(item, config) {
10770		this.construct(item, config);
10771		return this;
10772	};
10773
10774	Chart.Chart = Chart;
10775
10776	return Chart;
10777};
10778
10779},{"26":26}],31:[function(require,module,exports){
10780'use strict';
10781
10782var helpers = require(46);
10783
10784function filterByPosition(array, position) {
10785	return helpers.where(array, function(v) {
10786		return v.position === position;
10787	});
10788}
10789
10790function sortByWeight(array, reverse) {
10791	array.forEach(function(v, i) {
10792		v._tmpIndex_ = i;
10793		return v;
10794	});
10795	array.sort(function(a, b) {
10796		var v0 = reverse ? b : a;
10797		var v1 = reverse ? a : b;
10798		return v0.weight === v1.weight ?
10799			v0._tmpIndex_ - v1._tmpIndex_ :
10800			v0.weight - v1.weight;
10801	});
10802	array.forEach(function(v) {
10803		delete v._tmpIndex_;
10804	});
10805}
10806
10807/**
10808 * @interface ILayoutItem
10809 * @prop {String} position - The position of the item in the chart layout. Possible values are
10810 * 'left', 'top', 'right', 'bottom', and 'chartArea'
10811 * @prop {Number} weight - The weight used to sort the item. Higher weights are further away from the chart area
10812 * @prop {Boolean} fullWidth - if true, and the item is horizontal, then push vertical boxes down
10813 * @prop {Function} isHorizontal - returns true if the layout item is horizontal (ie. top or bottom)
10814 * @prop {Function} update - Takes two parameters: width and height. Returns size of item
10815 * @prop {Function} getPadding -  Returns an object with padding on the edges
10816 * @prop {Number} width - Width of item. Must be valid after update()
10817 * @prop {Number} height - Height of item. Must be valid after update()
10818 * @prop {Number} left - Left edge of the item. Set by layout system and cannot be used in update
10819 * @prop {Number} top - Top edge of the item. Set by layout system and cannot be used in update
10820 * @prop {Number} right - Right edge of the item. Set by layout system and cannot be used in update
10821 * @prop {Number} bottom - Bottom edge of the item. Set by layout system and cannot be used in update
10822 */
10823
10824// The layout service is very self explanatory.  It's responsible for the layout within a chart.
10825// Scales, Legends and Plugins all rely on the layout service and can easily register to be placed anywhere they need
10826// It is this service's responsibility of carrying out that layout.
10827module.exports = {
10828	defaults: {},
10829
10830	/**
10831	 * Register a box to a chart.
10832	 * A box is simply a reference to an object that requires layout. eg. Scales, Legend, Title.
10833	 * @param {Chart} chart - the chart to use
10834	 * @param {ILayoutItem} item - the item to add to be layed out
10835	 */
10836	addBox: function(chart, item) {
10837		if (!chart.boxes) {
10838			chart.boxes = [];
10839		}
10840
10841		// initialize item with default values
10842		item.fullWidth = item.fullWidth || false;
10843		item.position = item.position || 'top';
10844		item.weight = item.weight || 0;
10845
10846		chart.boxes.push(item);
10847	},
10848
10849	/**
10850	 * Remove a layoutItem from a chart
10851	 * @param {Chart} chart - the chart to remove the box from
10852	 * @param {Object} layoutItem - the item to remove from the layout
10853	 */
10854	removeBox: function(chart, layoutItem) {
10855		var index = chart.boxes ? chart.boxes.indexOf(layoutItem) : -1;
10856		if (index !== -1) {
10857			chart.boxes.splice(index, 1);
10858		}
10859	},
10860
10861	/**
10862	 * Sets (or updates) options on the given `item`.
10863	 * @param {Chart} chart - the chart in which the item lives (or will be added to)
10864	 * @param {Object} item - the item to configure with the given options
10865	 * @param {Object} options - the new item options.
10866	 */
10867	configure: function(chart, item, options) {
10868		var props = ['fullWidth', 'position', 'weight'];
10869		var ilen = props.length;
10870		var i = 0;
10871		var prop;
10872
10873		for (; i < ilen; ++i) {
10874			prop = props[i];
10875			if (options.hasOwnProperty(prop)) {
10876				item[prop] = options[prop];
10877			}
10878		}
10879	},
10880
10881	/**
10882	 * Fits boxes of the given chart into the given size by having each box measure itself
10883	 * then running a fitting algorithm
10884	 * @param {Chart} chart - the chart
10885	 * @param {Number} width - the width to fit into
10886	 * @param {Number} height - the height to fit into
10887	 */
10888	update: function(chart, width, height) {
10889		if (!chart) {
10890			return;
10891		}
10892
10893		var layoutOptions = chart.options.layout || {};
10894		var padding = helpers.options.toPadding(layoutOptions.padding);
10895		var leftPadding = padding.left;
10896		var rightPadding = padding.right;
10897		var topPadding = padding.top;
10898		var bottomPadding = padding.bottom;
10899
10900		var leftBoxes = filterByPosition(chart.boxes, 'left');
10901		var rightBoxes = filterByPosition(chart.boxes, 'right');
10902		var topBoxes = filterByPosition(chart.boxes, 'top');
10903		var bottomBoxes = filterByPosition(chart.boxes, 'bottom');
10904		var chartAreaBoxes = filterByPosition(chart.boxes, 'chartArea');
10905
10906		// Sort boxes by weight. A higher weight is further away from the chart area
10907		sortByWeight(leftBoxes, true);
10908		sortByWeight(rightBoxes, false);
10909		sortByWeight(topBoxes, true);
10910		sortByWeight(bottomBoxes, false);
10911
10912		// Essentially we now have any number of boxes on each of the 4 sides.
10913		// Our canvas looks like the following.
10914		// The areas L1 and L2 are the left axes. R1 is the right axis, T1 is the top axis and
10915		// B1 is the bottom axis
10916		// There are also 4 quadrant-like locations (left to right instead of clockwise) reserved for chart overlays
10917		// These locations are single-box locations only, when trying to register a chartArea location that is already taken,
10918		// an error will be thrown.
10919		//
10920		// |----------------------------------------------------|
10921		// |                  T1 (Full Width)                   |
10922		// |----------------------------------------------------|
10923		// |    |    |                 T2                  |    |
10924		// |    |----|-------------------------------------|----|
10925		// |    |    | C1 |                           | C2 |    |
10926		// |    |    |----|                           |----|    |
10927		// |    |    |                                     |    |
10928		// | L1 | L2 |           ChartArea (C0)            | R1 |
10929		// |    |    |                                     |    |
10930		// |    |    |----|                           |----|    |
10931		// |    |    | C3 |                           | C4 |    |
10932		// |    |----|-------------------------------------|----|
10933		// |    |    |                 B1                  |    |
10934		// |----------------------------------------------------|
10935		// |                  B2 (Full Width)                   |
10936		// |----------------------------------------------------|
10937		//
10938		// What we do to find the best sizing, we do the following
10939		// 1. Determine the minimum size of the chart area.
10940		// 2. Split the remaining width equally between each vertical axis
10941		// 3. Split the remaining height equally between each horizontal axis
10942		// 4. Give each layout the maximum size it can be. The layout will return it's minimum size
10943		// 5. Adjust the sizes of each axis based on it's minimum reported size.
10944		// 6. Refit each axis
10945		// 7. Position each axis in the final location
10946		// 8. Tell the chart the final location of the chart area
10947		// 9. Tell any axes that overlay the chart area the positions of the chart area
10948
10949		// Step 1
10950		var chartWidth = width - leftPadding - rightPadding;
10951		var chartHeight = height - topPadding - bottomPadding;
10952		var chartAreaWidth = chartWidth / 2; // min 50%
10953		var chartAreaHeight = chartHeight / 2; // min 50%
10954
10955		// Step 2
10956		var verticalBoxWidth = (width - chartAreaWidth) / (leftBoxes.length + rightBoxes.length);
10957
10958		// Step 3
10959		var horizontalBoxHeight = (height - chartAreaHeight) / (topBoxes.length + bottomBoxes.length);
10960
10961		// Step 4
10962		var maxChartAreaWidth = chartWidth;
10963		var maxChartAreaHeight = chartHeight;
10964		var minBoxSizes = [];
10965
10966		function getMinimumBoxSize(box) {
10967			var minSize;
10968			var isHorizontal = box.isHorizontal();
10969
10970			if (isHorizontal) {
10971				minSize = box.update(box.fullWidth ? chartWidth : maxChartAreaWidth, horizontalBoxHeight);
10972				maxChartAreaHeight -= minSize.height;
10973			} else {
10974				minSize = box.update(verticalBoxWidth, maxChartAreaHeight);
10975				maxChartAreaWidth -= minSize.width;
10976			}
10977
10978			minBoxSizes.push({
10979				horizontal: isHorizontal,
10980				minSize: minSize,
10981				box: box,
10982			});
10983		}
10984
10985		helpers.each(leftBoxes.concat(rightBoxes, topBoxes, bottomBoxes), getMinimumBoxSize);
10986
10987		// If a horizontal box has padding, we move the left boxes over to avoid ugly charts (see issue #2478)
10988		var maxHorizontalLeftPadding = 0;
10989		var maxHorizontalRightPadding = 0;
10990		var maxVerticalTopPadding = 0;
10991		var maxVerticalBottomPadding = 0;
10992
10993		helpers.each(topBoxes.concat(bottomBoxes), function(horizontalBox) {
10994			if (horizontalBox.getPadding) {
10995				var boxPadding = horizontalBox.getPadding();
10996				maxHorizontalLeftPadding = Math.max(maxHorizontalLeftPadding, boxPadding.left);
10997				maxHorizontalRightPadding = Math.max(maxHorizontalRightPadding, boxPadding.right);
10998			}
10999		});
11000
11001		helpers.each(leftBoxes.concat(rightBoxes), function(verticalBox) {
11002			if (verticalBox.getPadding) {
11003				var boxPadding = verticalBox.getPadding();
11004				maxVerticalTopPadding = Math.max(maxVerticalTopPadding, boxPadding.top);
11005				maxVerticalBottomPadding = Math.max(maxVerticalBottomPadding, boxPadding.bottom);
11006			}
11007		});
11008
11009		// At this point, maxChartAreaHeight and maxChartAreaWidth are the size the chart area could
11010		// be if the axes are drawn at their minimum sizes.
11011		// Steps 5 & 6
11012		var totalLeftBoxesWidth = leftPadding;
11013		var totalRightBoxesWidth = rightPadding;
11014		var totalTopBoxesHeight = topPadding;
11015		var totalBottomBoxesHeight = bottomPadding;
11016
11017		// Function to fit a box
11018		function fitBox(box) {
11019			var minBoxSize = helpers.findNextWhere(minBoxSizes, function(minBox) {
11020				return minBox.box === box;
11021			});
11022
11023			if (minBoxSize) {
11024				if (box.isHorizontal()) {
11025					var scaleMargin = {
11026						left: Math.max(totalLeftBoxesWidth, maxHorizontalLeftPadding),
11027						right: Math.max(totalRightBoxesWidth, maxHorizontalRightPadding),
11028						top: 0,
11029						bottom: 0
11030					};
11031
11032					// Don't use min size here because of label rotation. When the labels are rotated, their rotation highly depends
11033					// on the margin. Sometimes they need to increase in size slightly
11034					box.update(box.fullWidth ? chartWidth : maxChartAreaWidth, chartHeight / 2, scaleMargin);
11035				} else {
11036					box.update(minBoxSize.minSize.width, maxChartAreaHeight);
11037				}
11038			}
11039		}
11040
11041		// Update, and calculate the left and right margins for the horizontal boxes
11042		helpers.each(leftBoxes.concat(rightBoxes), fitBox);
11043
11044		helpers.each(leftBoxes, function(box) {
11045			totalLeftBoxesWidth += box.width;
11046		});
11047
11048		helpers.each(rightBoxes, function(box) {
11049			totalRightBoxesWidth += box.width;
11050		});
11051
11052		// Set the Left and Right margins for the horizontal boxes
11053		helpers.each(topBoxes.concat(bottomBoxes), fitBox);
11054
11055		// Figure out how much margin is on the top and bottom of the vertical boxes
11056		helpers.each(topBoxes, function(box) {
11057			totalTopBoxesHeight += box.height;
11058		});
11059
11060		helpers.each(bottomBoxes, function(box) {
11061			totalBottomBoxesHeight += box.height;
11062		});
11063
11064		function finalFitVerticalBox(box) {
11065			var minBoxSize = helpers.findNextWhere(minBoxSizes, function(minSize) {
11066				return minSize.box === box;
11067			});
11068
11069			var scaleMargin = {
11070				left: 0,
11071				right: 0,
11072				top: totalTopBoxesHeight,
11073				bottom: totalBottomBoxesHeight
11074			};
11075
11076			if (minBoxSize) {
11077				box.update(minBoxSize.minSize.width, maxChartAreaHeight, scaleMargin);
11078			}
11079		}
11080
11081		// Let the left layout know the final margin
11082		helpers.each(leftBoxes.concat(rightBoxes), finalFitVerticalBox);
11083
11084		// Recalculate because the size of each layout might have changed slightly due to the margins (label rotation for instance)
11085		totalLeftBoxesWidth = leftPadding;
11086		totalRightBoxesWidth = rightPadding;
11087		totalTopBoxesHeight = topPadding;
11088		totalBottomBoxesHeight = bottomPadding;
11089
11090		helpers.each(leftBoxes, function(box) {
11091			totalLeftBoxesWidth += box.width;
11092		});
11093
11094		helpers.each(rightBoxes, function(box) {
11095			totalRightBoxesWidth += box.width;
11096		});
11097
11098		helpers.each(topBoxes, function(box) {
11099			totalTopBoxesHeight += box.height;
11100		});
11101		helpers.each(bottomBoxes, function(box) {
11102			totalBottomBoxesHeight += box.height;
11103		});
11104
11105		// We may be adding some padding to account for rotated x axis labels
11106		var leftPaddingAddition = Math.max(maxHorizontalLeftPadding - totalLeftBoxesWidth, 0);
11107		totalLeftBoxesWidth += leftPaddingAddition;
11108		totalRightBoxesWidth += Math.max(maxHorizontalRightPadding - totalRightBoxesWidth, 0);
11109
11110		var topPaddingAddition = Math.max(maxVerticalTopPadding - totalTopBoxesHeight, 0);
11111		totalTopBoxesHeight += topPaddingAddition;
11112		totalBottomBoxesHeight += Math.max(maxVerticalBottomPadding - totalBottomBoxesHeight, 0);
11113
11114		// Figure out if our chart area changed. This would occur if the dataset layout label rotation
11115		// changed due to the application of the margins in step 6. Since we can only get bigger, this is safe to do
11116		// without calling `fit` again
11117		var newMaxChartAreaHeight = height - totalTopBoxesHeight - totalBottomBoxesHeight;
11118		var newMaxChartAreaWidth = width - totalLeftBoxesWidth - totalRightBoxesWidth;
11119
11120		if (newMaxChartAreaWidth !== maxChartAreaWidth || newMaxChartAreaHeight !== maxChartAreaHeight) {
11121			helpers.each(leftBoxes, function(box) {
11122				box.height = newMaxChartAreaHeight;
11123			});
11124
11125			helpers.each(rightBoxes, function(box) {
11126				box.height = newMaxChartAreaHeight;
11127			});
11128
11129			helpers.each(topBoxes, function(box) {
11130				if (!box.fullWidth) {
11131					box.width = newMaxChartAreaWidth;
11132				}
11133			});
11134
11135			helpers.each(bottomBoxes, function(box) {
11136				if (!box.fullWidth) {
11137					box.width = newMaxChartAreaWidth;
11138				}
11139			});
11140
11141			maxChartAreaHeight = newMaxChartAreaHeight;
11142			maxChartAreaWidth = newMaxChartAreaWidth;
11143		}
11144
11145		// Step 7 - Position the boxes
11146		var left = leftPadding + leftPaddingAddition;
11147		var top = topPadding + topPaddingAddition;
11148
11149		function placeBox(box) {
11150			if (box.isHorizontal()) {
11151				box.left = box.fullWidth ? leftPadding : totalLeftBoxesWidth;
11152				box.right = box.fullWidth ? width - rightPadding : totalLeftBoxesWidth + maxChartAreaWidth;
11153				box.top = top;
11154				box.bottom = top + box.height;
11155
11156				// Move to next point
11157				top = box.bottom;
11158
11159			} else {
11160
11161				box.left = left;
11162				box.right = left + box.width;
11163				box.top = totalTopBoxesHeight;
11164				box.bottom = totalTopBoxesHeight + maxChartAreaHeight;
11165
11166				// Move to next point
11167				left = box.right;
11168			}
11169		}
11170
11171		helpers.each(leftBoxes.concat(topBoxes), placeBox);
11172
11173		// Account for chart width and height
11174		left += maxChartAreaWidth;
11175		top += maxChartAreaHeight;
11176
11177		helpers.each(rightBoxes, placeBox);
11178		helpers.each(bottomBoxes, placeBox);
11179
11180		// Step 8
11181		chart.chartArea = {
11182			left: totalLeftBoxesWidth,
11183			top: totalTopBoxesHeight,
11184			right: totalLeftBoxesWidth + maxChartAreaWidth,
11185			bottom: totalTopBoxesHeight + maxChartAreaHeight
11186		};
11187
11188		// Step 9
11189		helpers.each(chartAreaBoxes, function(box) {
11190			box.left = chart.chartArea.left;
11191			box.top = chart.chartArea.top;
11192			box.right = chart.chartArea.right;
11193			box.bottom = chart.chartArea.bottom;
11194
11195			box.update(maxChartAreaWidth, maxChartAreaHeight);
11196		});
11197	}
11198};
11199
11200},{"46":46}],32:[function(require,module,exports){
11201'use strict';
11202
11203var defaults = require(26);
11204var helpers = require(46);
11205
11206defaults._set('global', {
11207	plugins: {}
11208});
11209
11210/**
11211 * The plugin service singleton
11212 * @namespace Chart.plugins
11213 * @since 2.1.0
11214 */
11215module.exports = {
11216	/**
11217	 * Globally registered plugins.
11218	 * @private
11219	 */
11220	_plugins: [],
11221
11222	/**
11223	 * This identifier is used to invalidate the descriptors cache attached to each chart
11224	 * when a global plugin is registered or unregistered. In this case, the cache ID is
11225	 * incremented and descriptors are regenerated during following API calls.
11226	 * @private
11227	 */
11228	_cacheId: 0,
11229
11230	/**
11231	 * Registers the given plugin(s) if not already registered.
11232	 * @param {Array|Object} plugins plugin instance(s).
11233	 */
11234	register: function(plugins) {
11235		var p = this._plugins;
11236		([]).concat(plugins).forEach(function(plugin) {
11237			if (p.indexOf(plugin) === -1) {
11238				p.push(plugin);
11239			}
11240		});
11241
11242		this._cacheId++;
11243	},
11244
11245	/**
11246	 * Unregisters the given plugin(s) only if registered.
11247	 * @param {Array|Object} plugins plugin instance(s).
11248	 */
11249	unregister: function(plugins) {
11250		var p = this._plugins;
11251		([]).concat(plugins).forEach(function(plugin) {
11252			var idx = p.indexOf(plugin);
11253			if (idx !== -1) {
11254				p.splice(idx, 1);
11255			}
11256		});
11257
11258		this._cacheId++;
11259	},
11260
11261	/**
11262	 * Remove all registered plugins.
11263	 * @since 2.1.5
11264	 */
11265	clear: function() {
11266		this._plugins = [];
11267		this._cacheId++;
11268	},
11269
11270	/**
11271	 * Returns the number of registered plugins?
11272	 * @returns {Number}
11273	 * @since 2.1.5
11274	 */
11275	count: function() {
11276		return this._plugins.length;
11277	},
11278
11279	/**
11280	 * Returns all registered plugin instances.
11281	 * @returns {Array} array of plugin objects.
11282	 * @since 2.1.5
11283	 */
11284	getAll: function() {
11285		return this._plugins;
11286	},
11287
11288	/**
11289	 * Calls enabled plugins for `chart` on the specified hook and with the given args.
11290	 * This method immediately returns as soon as a plugin explicitly returns false. The
11291	 * returned value can be used, for instance, to interrupt the current action.
11292	 * @param {Object} chart - The chart instance for which plugins should be called.
11293	 * @param {String} hook - The name of the plugin method to call (e.g. 'beforeUpdate').
11294	 * @param {Array} [args] - Extra arguments to apply to the hook call.
11295	 * @returns {Boolean} false if any of the plugins return false, else returns true.
11296	 */
11297	notify: function(chart, hook, args) {
11298		var descriptors = this.descriptors(chart);
11299		var ilen = descriptors.length;
11300		var i, descriptor, plugin, params, method;
11301
11302		for (i = 0; i < ilen; ++i) {
11303			descriptor = descriptors[i];
11304			plugin = descriptor.plugin;
11305			method = plugin[hook];
11306			if (typeof method === 'function') {
11307				params = [chart].concat(args || []);
11308				params.push(descriptor.options);
11309				if (method.apply(plugin, params) === false) {
11310					return false;
11311				}
11312			}
11313		}
11314
11315		return true;
11316	},
11317
11318	/**
11319	 * Returns descriptors of enabled plugins for the given chart.
11320	 * @returns {Array} [{ plugin, options }]
11321	 * @private
11322	 */
11323	descriptors: function(chart) {
11324		var cache = chart.$plugins || (chart.$plugins = {});
11325		if (cache.id === this._cacheId) {
11326			return cache.descriptors;
11327		}
11328
11329		var plugins = [];
11330		var descriptors = [];
11331		var config = (chart && chart.config) || {};
11332		var options = (config.options && config.options.plugins) || {};
11333
vendor: 9,411 bytes, lines 11334-11562
11334		this._plugins.concat(config.plugins || []).forEach(function(plugin) {
11335			var idx = plugins.indexOf(plugin);
11336			if (idx !== -1) {
11337				return;
11338			}
11339
11340			var id = plugin.id;
11341			var opts = options[id];
11342			if (opts === false) {
11343				return;
11344			}
11345
11346			if (opts === true) {
11347				opts = helpers.clone(defaults.global.plugins[id]);
11348			}
11349
11350			plugins.push(plugin);
11351			descriptors.push({
11352				plugin: plugin,
11353				options: opts || {}
11354			});
11355		});
11356
11357		cache.descriptors = descriptors;
11358		cache.id = this._cacheId;
11359		return descriptors;
11360	},
11361
11362	/**
11363	 * Invalidates cache for the given chart: descriptors hold a reference on plugin option,
11364	 * but in some cases, this reference can be changed by the user when updating options.
11365	 * https://github.com/chartjs/Chart.js/issues/5111#issuecomment-355934167
11366	 * @private
11367	 */
11368	_invalidate: function(chart) {
11369		delete chart.$plugins;
11370	}
11371};
11372
11373/**
11374 * Plugin extension hooks.
11375 * @interface IPlugin
11376 * @since 2.1.0
11377 */
11378/**
11379 * @method IPlugin#beforeInit
11380 * @desc Called before initializing `chart`.
11381 * @param {Chart.Controller} chart - The chart instance.
11382 * @param {Object} options - The plugin options.
11383 */
11384/**
11385 * @method IPlugin#afterInit
11386 * @desc Called after `chart` has been initialized and before the first update.
11387 * @param {Chart.Controller} chart - The chart instance.
11388 * @param {Object} options - The plugin options.
11389 */
11390/**
11391 * @method IPlugin#beforeUpdate
11392 * @desc Called before updating `chart`. If any plugin returns `false`, the update
11393 * is cancelled (and thus subsequent render(s)) until another `update` is triggered.
11394 * @param {Chart.Controller} chart - The chart instance.
11395 * @param {Object} options - The plugin options.
11396 * @returns {Boolean} `false` to cancel the chart update.
11397 */
11398/**
11399 * @method IPlugin#afterUpdate
11400 * @desc Called after `chart` has been updated and before rendering. Note that this
11401 * hook will not be called if the chart update has been previously cancelled.
11402 * @param {Chart.Controller} chart - The chart instance.
11403 * @param {Object} options - The plugin options.
11404 */
11405/**
11406 * @method IPlugin#beforeDatasetsUpdate
11407 * @desc Called before updating the `chart` datasets. If any plugin returns `false`,
11408 * the datasets update is cancelled until another `update` is triggered.
11409 * @param {Chart.Controller} chart - The chart instance.
11410 * @param {Object} options - The plugin options.
11411 * @returns {Boolean} false to cancel the datasets update.
11412 * @since version 2.1.5
11413*/
11414/**
11415 * @method IPlugin#afterDatasetsUpdate
11416 * @desc Called after the `chart` datasets have been updated. Note that this hook
11417 * will not be called if the datasets update has been previously cancelled.
11418 * @param {Chart.Controller} chart - The chart instance.
11419 * @param {Object} options - The plugin options.
11420 * @since version 2.1.5
11421 */
11422/**
11423 * @method IPlugin#beforeDatasetUpdate
11424 * @desc Called before updating the `chart` dataset at the given `args.index`. If any plugin
11425 * returns `false`, the datasets update is cancelled until another `update` is triggered.
11426 * @param {Chart} chart - The chart instance.
11427 * @param {Object} args - The call arguments.
11428 * @param {Number} args.index - The dataset index.
11429 * @param {Object} args.meta - The dataset metadata.
11430 * @param {Object} options - The plugin options.
11431 * @returns {Boolean} `false` to cancel the chart datasets drawing.
11432 */
11433/**
11434 * @method IPlugin#afterDatasetUpdate
11435 * @desc Called after the `chart` datasets at the given `args.index` has been updated. Note
11436 * that this hook will not be called if the datasets update has been previously cancelled.
11437 * @param {Chart} chart - The chart instance.
11438 * @param {Object} args - The call arguments.
11439 * @param {Number} args.index - The dataset index.
11440 * @param {Object} args.meta - The dataset metadata.
11441 * @param {Object} options - The plugin options.
11442 */
11443/**
11444 * @method IPlugin#beforeLayout
11445 * @desc Called before laying out `chart`. If any plugin returns `false`,
11446 * the layout update is cancelled until another `update` is triggered.
11447 * @param {Chart.Controller} chart - The chart instance.
11448 * @param {Object} options - The plugin options.
11449 * @returns {Boolean} `false` to cancel the chart layout.
11450 */
11451/**
11452 * @method IPlugin#afterLayout
11453 * @desc Called after the `chart` has been layed out. Note that this hook will not
11454 * be called if the layout update has been previously cancelled.
11455 * @param {Chart.Controller} chart - The chart instance.
11456 * @param {Object} options - The plugin options.
11457 */
11458/**
11459 * @method IPlugin#beforeRender
11460 * @desc Called before rendering `chart`. If any plugin returns `false`,
11461 * the rendering is cancelled until another `render` is triggered.
11462 * @param {Chart.Controller} chart - The chart instance.
11463 * @param {Object} options - The plugin options.
11464 * @returns {Boolean} `false` to cancel the chart rendering.
11465 */
11466/**
11467 * @method IPlugin#afterRender
11468 * @desc Called after the `chart` has been fully rendered (and animation completed). Note
11469 * that this hook will not be called if the rendering has been previously cancelled.
11470 * @param {Chart.Controller} chart - The chart instance.
11471 * @param {Object} options - The plugin options.
11472 */
11473/**
11474 * @method IPlugin#beforeDraw
11475 * @desc Called before drawing `chart` at every animation frame specified by the given
11476 * easing value. If any plugin returns `false`, the frame drawing is cancelled until
11477 * another `render` is triggered.
11478 * @param {Chart.Controller} chart - The chart instance.
11479 * @param {Number} easingValue - The current animation value, between 0.0 and 1.0.
11480 * @param {Object} options - The plugin options.
11481 * @returns {Boolean} `false` to cancel the chart drawing.
11482 */
11483/**
11484 * @method IPlugin#afterDraw
11485 * @desc Called after the `chart` has been drawn for the specific easing value. Note
11486 * that this hook will not be called if the drawing has been previously cancelled.
11487 * @param {Chart.Controller} chart - The chart instance.
11488 * @param {Number} easingValue - The current animation value, between 0.0 and 1.0.
11489 * @param {Object} options - The plugin options.
11490 */
11491/**
11492 * @method IPlugin#beforeDatasetsDraw
11493 * @desc Called before drawing the `chart` datasets. If any plugin returns `false`,
11494 * the datasets drawing is cancelled until another `render` is triggered.
11495 * @param {Chart.Controller} chart - The chart instance.
11496 * @param {Number} easingValue - The current animation value, between 0.0 and 1.0.
11497 * @param {Object} options - The plugin options.
11498 * @returns {Boolean} `false` to cancel the chart datasets drawing.
11499 */
11500/**
11501 * @method IPlugin#afterDatasetsDraw
11502 * @desc Called after the `chart` datasets have been drawn. Note that this hook
11503 * will not be called if the datasets drawing has been previously cancelled.
11504 * @param {Chart.Controller} chart - The chart instance.
11505 * @param {Number} easingValue - The current animation value, between 0.0 and 1.0.
11506 * @param {Object} options - The plugin options.
11507 */
11508/**
11509 * @method IPlugin#beforeDatasetDraw
11510 * @desc Called before drawing the `chart` dataset at the given `args.index` (datasets
11511 * are drawn in the reverse order). If any plugin returns `false`, the datasets drawing
11512 * is cancelled until another `render` is triggered.
11513 * @param {Chart} chart - The chart instance.
11514 * @param {Object} args - The call arguments.
11515 * @param {Number} args.index - The dataset index.
11516 * @param {Object} args.meta - The dataset metadata.
11517 * @param {Number} args.easingValue - The current animation value, between 0.0 and 1.0.
11518 * @param {Object} options - The plugin options.
11519 * @returns {Boolean} `false` to cancel the chart datasets drawing.
11520 */
11521/**
11522 * @method IPlugin#afterDatasetDraw
11523 * @desc Called after the `chart` datasets at the given `args.index` have been drawn
11524 * (datasets are drawn in the reverse order). Note that this hook will not be called
11525 * if the datasets drawing has been previously cancelled.
11526 * @param {Chart} chart - The chart instance.
11527 * @param {Object} args - The call arguments.
11528 * @param {Number} args.index - The dataset index.
11529 * @param {Object} args.meta - The dataset metadata.
11530 * @param {Number} args.easingValue - The current animation value, between 0.0 and 1.0.
11531 * @param {Object} options - The plugin options.
11532 */
11533/**
11534 * @method IPlugin#beforeTooltipDraw
11535 * @desc Called before drawing the `tooltip`. If any plugin returns `false`,
11536 * the tooltip drawing is cancelled until another `render` is triggered.
11537 * @param {Chart} chart - The chart instance.
11538 * @param {Object} args - The call arguments.
11539 * @param {Object} args.tooltip - The tooltip.
11540 * @param {Number} args.easingValue - The current animation value, between 0.0 and 1.0.
11541 * @param {Object} options - The plugin options.
11542 * @returns {Boolean} `false` to cancel the chart tooltip drawing.
11543 */
11544/**
11545 * @method IPlugin#afterTooltipDraw
11546 * @desc Called after drawing the `tooltip`. Note that this hook will not
11547 * be called if the tooltip drawing has been previously cancelled.
11548 * @param {Chart} chart - The chart instance.
11549 * @param {Object} args - The call arguments.
11550 * @param {Object} args.tooltip - The tooltip.
11551 * @param {Number} args.easingValue - The current animation value, between 0.0 and 1.0.
11552 * @param {Object} options - The plugin options.
11553 */
11554/**
11555 * @method IPlugin#beforeEvent
11556 * @desc Called before processing the specified `event`. If any plugin returns `false`,
11557 * the event will be discarded.
11558 * @param {Chart.Controller} chart - The chart instance.
11559 * @param {IEvent} event - The event object.
11560 * @param {Object} options - The plugin options.
11561 */
11562/**
11563 * @method IPlugin#afterEvent
11564 * @desc Called after the `event` has been consumed. Note that this hook
11565 * will not be called if the `event` has been previously discarded.
11566 * @param {Chart.Controller} chart - The chart instance.
11567 * @param {IEvent} event - The event object.
11568 * @param {Object} options - The plugin options.
11569 */
11570/**
11571 * @method IPlugin#resize
11572 * @desc Called after the chart as been resized.
11573 * @param {Chart.Controller} chart - The chart instance.
11574 * @param {Number} size - The new canvas display size (eq. canvas.style width & height).
11575 * @param {Object} options - The plugin options.
11576 */
11577/**
11578 * @method IPlugin#destroy
11579 * @desc Called after the chart as been destroyed.
11580 * @param {Chart.Controller} chart - The chart instance.
11581 * @param {Object} options - The plugin options.
11582 */
11583
11584},{"26":26,"46":46}],33:[function(require,module,exports){
11585'use strict';
11586
11587var defaults = require(26);
11588var Element = require(27);
11589var helpers = require(46);
11590var Ticks = require(35);
11591
11592defaults._set('scale', {
11593	display: true,
11594	position: 'left',
11595	offset: false,
11596
11597	// grid line settings
11598	gridLines: {
11599		display: true,
11600		color: 'rgba(0, 0, 0, 0.1)',
11601		lineWidth: 1,
11602		drawBorder: true,
11603		drawOnChartArea: true,
11604		drawTicks: true,
11605		tickMarkLength: 10,
11606		zeroLineWidth: 1,
11607		zeroLineColor: 'rgba(0,0,0,0.25)',
11608		zeroLineBorderDash: [],
11609		zeroLineBorderDashOffset: 0.0,
11610		offsetGridLines: false,
11611		borderDash: [],
11612		borderDashOffset: 0.0
11613	},
11614
11615	// scale label
11616	scaleLabel: {
11617		// display property
11618		display: false,
11619
11620		// actual label
11621		labelString: '',
11622
11623		// line height
11624		lineHeight: 1.2,
11625
11626		// top/bottom padding
11627		padding: {
11628			top: 4,
11629			bottom: 4
11630		}
11631	},
11632
11633	// label settings
11634	ticks: {
11635		beginAtZero: false,
11636		minRotation: 0,
11637		maxRotation: 50,
11638		mirror: false,
11639		padding: 0,
11640		reverse: false,
11641		display: true,
11642		autoSkip: true,
11643		autoSkipPadding: 0,
11644		labelOffset: 0,
11645		// We pass through arrays to be rendered as multiline labels, we convert Others to strings here.
11646		callback: Ticks.formatters.values,
11647		minor: {},
11648		major: {}
11649	}
11650});
11651
11652function labelsFromTicks(ticks) {
11653	var labels = [];
11654	var i, ilen;
11655
11656	for (i = 0, ilen = ticks.length; i < ilen; ++i) {
11657		labels.push(ticks[i].label);
11658	}
11659
11660	return labels;
11661}
11662
11663function getLineValue(scale, index, offsetGridLines) {
11664	var lineValue = scale.getPixelForTick(index);
11665
11666	if (offsetGridLines) {
11667		if (index === 0) {
11668			lineValue -= (scale.getPixelForTick(1) - lineValue) / 2;
11669		} else {
11670			lineValue -= (lineValue - scale.getPixelForTick(index - 1)) / 2;
11671		}
11672	}
11673	return lineValue;
11674}
11675
11676function computeTextSize(context, tick, font) {
11677	return helpers.isArray(tick) ?
11678		helpers.longestText(context, font, tick) :
11679		context.measureText(tick).width;
11680}
11681
11682function parseFontOptions(options) {
11683	var valueOrDefault = helpers.valueOrDefault;
11684	var globalDefaults = defaults.global;
11685	var size = valueOrDefault(options.fontSize, globalDefaults.defaultFontSize);
11686	var style = valueOrDefault(options.fontStyle, globalDefaults.defaultFontStyle);
11687	var family = valueOrDefault(options.fontFamily, globalDefaults.defaultFontFamily);
11688
11689	return {
11690		size: size,
11691		style: style,
11692		family: family,
11693		font: helpers.fontString(size, style, family)
11694	};
11695}
11696
11697function parseLineHeight(options) {
11698	return helpers.options.toLineHeight(
11699		helpers.valueOrDefault(options.lineHeight, 1.2),
11700		helpers.valueOrDefault(options.fontSize, defaults.global.defaultFontSize));
11701}
11702
11703module.exports = Element.extend({
11704	/**
11705	 * Get the padding needed for the scale
11706	 * @method getPadding
11707	 * @private
11708	 * @returns {Padding} the necessary padding
11709	 */
11710	getPadding: function() {
11711		var me = this;
11712		return {
11713			left: me.paddingLeft || 0,
11714			top: me.paddingTop || 0,
11715			right: me.paddingRight || 0,
11716			bottom: me.paddingBottom || 0
11717		};
11718	},
11719
11720	/**
11721	 * Returns the scale tick objects ({label, major})
11722	 * @since 2.7
11723	 */
11724	getTicks: function() {
11725		return this._ticks;
11726	},
11727
11728	// These methods are ordered by lifecyle. Utilities then follow.
11729	// Any function defined here is inherited by all scale types.
11730	// Any function can be extended by the scale type
11731
11732	mergeTicksOptions: function() {
11733		var ticks = this.options.ticks;
11734		if (ticks.minor === false) {
11735			ticks.minor = {
11736				display: false
11737			};
11738		}
11739		if (ticks.major === false) {
11740			ticks.major = {
11741				display: false
11742			};
11743		}
11744		for (var key in ticks) {
11745			if (key !== 'major' && key !== 'minor') {
11746				if (typeof ticks.minor[key] === 'undefined') {
11747					ticks.minor[key] = ticks[key];
11748				}
11749				if (typeof ticks.major[key] === 'undefined') {
11750					ticks.major[key] = ticks[key];
11751				}
11752			}
11753		}
11754	},
11755	beforeUpdate: function() {
11756		helpers.callback(this.options.beforeUpdate, [this]);
11757	},
11758
11759	update: function(maxWidth, maxHeight, margins) {
11760		var me = this;
11761		var i, ilen, labels, label, ticks, tick;
11762
11763		// Update Lifecycle - Probably don't want to ever extend or over
11763write this function ;)
11764		me.beforeUpdate();
11765
11766		// Absorb the master measurements
11767		me.maxWidth = maxWidth;
11768		me.maxHeight = maxHeight;
11769		me.margins = helpers.extend({
11770			left: 0,
11771			right: 0,
11772			top: 0,
11773			bottom: 0
11774		}, margins);
11775		me.longestTextCache = me.longestTextCache || {};
11776
11777		// Dimensions
11778		me.beforeSetDimensions();
11779		me.setDimensions();
11780		me.afterSetDimensions();
11781
11782		// Data min/max
11783		me.beforeDataLimits();
11784		me.determineDataLimits();
11785		me.afterDataLimits();
11786
11787		// Ticks - `this.ticks` is now DEPRECATED!
11788		// Internal ticks are now stored as objects in the PRIVATE `this._ticks` member
11789		// and must not be accessed directly from outside this class. `this.ticks` being
11790		// around for long time and not marked as private, we can't change its structure
11791		// without unexpected breaking changes. If you need to access the scale ticks,
11792		// use scale.getTicks() instead.
11793
11794		me.beforeBuildTicks();
11795
11796		// New implementations should return an array of objects but for BACKWARD COMPAT,
11797		// we still support no return (`this.ticks` internally set by calling this method).
11798		ticks = me.buildTicks() || [];
11799
11800		me.afterBuildTicks();
11801
11802		me.beforeTickToLabelConversion();
11803
11804		// New implementations should return the formatted tick labels but for BACKWARD
11805		// COMPAT, we still support no return (`this.ticks` internally changed by calling
11806		// this method and supposed to contain only string values).
11807		labels = me.convertTicksToLabels(ticks) || me.ticks;
11808
11809		me.afterTickToLabelConversion();
11810
11811		me.ticks = labels;   // BACKWARD COMPATIBILITY
11812
11813		// IMPORTANT: from this point, we consider that `this.ticks` will NEVER change!
11814
11815		// BACKWARD COMPAT: synchronize `_ticks` with labels (so potentially `this.ticks`)
11816		for (i = 0, ilen = labels.length; i < ilen; ++i) {
11817			label = labels[i];
11818			tick = ticks[i];
11819			if (!tick) {
11820				ticks.push(tick = {
11821					label: label,
11822					major: false
11823				});
11824			} else {
11825				tick.label = label;
11826			}
11827		}
11828
11829		me._ticks = ticks;
11830
11831		// Tick Rotation
11832		me.beforeCalculateTickRotation();
11833		me.calculateTickRotation();
11834		me.afterCalculateTickRotation();
11835		// Fit
11836		me.beforeFit();
11837		me.fit();
11838		me.afterFit();
11839		//
11840		me.afterUpdate();
11841
11842		return me.minSize;
11843
11844	},
11845	afterUpdate: function() {
11846		helpers.callback(this.options.afterUpdate, [this]);
11847	},
11848
11849	//
11850
11851	beforeSetDimensions: function() {
11852		helpers.callback(this.options.beforeSetDimensions, [this]);
11853	},
11854	setDimensions: function() {
11855		var me = this;
11856		// Set the unconstrained dimension before label rotation
11857		if (me.isHorizontal()) {
11858			// Reset position before calculating rotation
11859			me.width = me.maxWidth;
11860			me.left = 0;
11861			me.right = me.width;
11862		} else {
11863			me.height = me.maxHeight;
11864
11865			// Reset position before calculating rotation
11866			me.top = 0;
11867			me.bottom = me.height;
11868		}
11869
11870		// Reset padding
11871		me.paddingLeft = 0;
11872		me.paddingTop = 0;
11873		me.paddingRight = 0;
11874		me.paddingBottom = 0;
11875	},
11876	afterSetDimensions: function() {
11877		helpers.callback(this.options.afterSetDimensions, [this]);
11878	},
11879
11880	// Data limits
11881	beforeDataLimits: function() {
11882		helpers.callback(this.options.beforeDataLimits, [this]);
11883	},
11884	determineDataLimits: helpers.noop,
11885	afterDataLimits: function() {
11886		helpers.callback(this.options.afterDataLimits, [this]);
11887	},
11888
11889	//
11890	beforeBuildTicks: function() {
11891		helpers.callback(this.options.beforeBuildTicks, [this]);
11892	},
11893	buildTicks: helpers.noop,
11894	afterBuildTicks: function() {
11895		helpers.callback(this.options.afterBuildTicks, [this]);
11896	},
11897
11898	beforeTickToLabelConversion: function() {
11899		helpers.callback(this.options.beforeTickToLabelConversion, [this]);
11900	},
11901	convertTicksToLabels: function() {
11902		var me = this;
11903		// Convert ticks to strings
11904		var tickOpts = me.options.ticks;
11905		me.ticks = me.ticks.map(tickOpts.userCallback || tickOpts.callback, this);
11906	},
11907	afterTickToLabelConversion: function() {
11908		helpers.callback(this.options.afterTickToLabelConversion, [this]);
11909	},
11910
11911	//
11912
11913	beforeCalculateTickRotation: function() {
11914		helpers.callback(this.options.beforeCalculateTickRotation, [this]);
11915	},
11916	calculateTickRotation: function() {
11917		var me = this;
11918		var context = me.ctx;
11919		var tickOpts = me.options.ticks;
11920		var labels = labelsFromTicks(me._ticks);
11921
11922		// Get the width of each grid by calculating the difference
11923		// between x offsets between 0 and 1.
11924		var tickFont = parseFontOptions(tickOpts);
11925		context.font = tickFont.font;
11926
11927		var labelRotation = tickOpts.minRotation || 0;
11928
11929		if (labels.length && me.options.display && me.isHorizontal()) {
11930			var originalLabelWidth = helpers.longestText(context, tickFont.font, labels, me.longestTextCache);
11931			var labelWidth = originalLabelWidth;
11932			var cosRotation, sinRotation;
11933
11934			// Allow 3 pixels x2 padding either side for label readability
11935			var tickWidth = me.getPixelForTick(1) - me.getPixelForTick(0) - 6;
11936
11937			// Max label rotation can be set or default to 90 - also act as a loop counter
11938			while (labelWidth > tickWidth && labelRotation < tickOpts.maxRotation) {
11939				var angleRadians = helpers.toRadians(labelRotation);
11940				cosRotation = Math.cos(angleRadians);
11941				sinRotation = Math.sin(angleRadians);
11942
11943				if (sinRotation * originalLabelWidth > me.maxHeight) {
11944					// go back one step
11945					labelRotation--;
11946					break;
11947				}
11948
11949				labelRotation++;
11950				labelWidth = cosRotation * originalLabelWidth;
11951			}
11952		}
11953
11954		me.labelRotation = labelRotation;
11955	},
11956	afterCalculateTickRotation: function() {
11957		helpers.callback(this.options.afterCalculateTickRotation, [this]);
11958	},
11959
11960	//
11961
11962	beforeFit: function() {
11963		helpers.callback(this.options.beforeFit, [this]);
11964	},
11965	fit: function() {
11966		var me = this;
11967		// Reset
11968		var minSize = me.minSize = {
11969			width: 0,
11970			height: 0
11971		};
11972
11973		var labels = labelsFromTicks(me._ticks);
11974
11975		var opts = me.options;
11976		var tickOpts = opts.ticks;
11977		var scaleLabelOpts = opts.scaleLabel;
11978		var gridLineOpts = opts.gridLines;
11979		var display = opts.display;
11980		var isHorizontal = me.isHorizontal();
11981
11982		var tickFont = parseFontOptions(tickOpts);
11983		var tickMarkLength = opts.gridLines.tickMarkLength;
11984
11985		// Width
11986		if (isHorizontal) {
11987			// subtract the margins to line up with the chartArea if we are a full width scale
11988			minSize.width = me.isFullWidth() ? me.maxWidth - me.margins.left - me.margins.right : me.maxWidth;
11989		} else {
11990			minSize.width = display && gridLineOpts.drawTicks ? tickMarkLength : 0;
11991		}
11992
11993		// height
11994		if (isHorizontal) {
11995			minSize.height = display && gridLineOpts.drawTicks ? tickMarkLength : 0;
11996		} else {
11997			minSize.height = me.maxHeight; // fill all the height
11998		}
11999
12000		// Are we showing a title for the scale?
12001		if (scaleLabelOpts.display && display) {
12002			var scaleLabelLineHeight = parseLineHeight(scaleLabelOpts);
12003			var scaleLabelPadding = helpers.options.toPadding(scaleLabelOpts.padding);
12004			var deltaHeight = scaleLabelLineHeight + scaleLabelPadding.height;
12005
12006			if (isHorizontal) {
12007				minSize.height += deltaHeight;
12008			} else {
12009				minSize.width += deltaHeight;
12010			}
12011		}
12012
12013		// Don't bother fitting the ticks if we are not showing them
12014		if (tickOpts.display && display) {
12015			var largestTextWidth = helpers.longestText(me.ctx, tickFont.font, labels, me.longestTextCache);
12016			var tallestLabelHeightInLines = helpers.numberOfLabelLines(labels);
12017			var lineSpace = tickFont.size * 0.5;
12018			var tickPadding = me.options.ticks.padding;
12019
12020			if (isHorizontal) {
12021				// A horizontal axis is more constrained by the height.
12022				me.longestLabelWidth = largestTextWidth;
12023
12024				var angleRadians = helpers.toRadians(me.labelRotation);
12025				var cosRotation = Math.cos(angleRadians);
12026				var sinRotation = Math.sin(angleRadians);
12027
12028				// TODO - improve this calculation
12029				var labelHeight = (sinRotation * largestTextWidth)
12030					+ (tickFont.size * tallestLabelHeightInLines)
12031					+ (lineSpace * (tallestLabelHeightInLines - 1))
12032					+ lineSpace; // padding
12033
12034				minSize.height = Math.min(me.maxHeight, minSize.height + labelHeight + tickPadding);
12035
12036				me.ctx.font = tickFont.font;
12037				var firstLabelWidth = computeTextSize(me.ctx, labels[0], tickFont.font);
12038				var lastLabelWidth = computeTextSize(me.ctx, labels[labels.length - 1], tickFont.font);
12039
12040				// Ensure that our ticks are always inside the canvas. When rotated, ticks are right aligned
12041				// which means that the right padding is dominated by the font height
12042				if (me.labelRotation !== 0) {
12043					me.paddingLeft = opts.position === 'bottom' ? (cosRotation * firstLabelWidth) + 3 : (cosRotation * lineSpace) + 3; // add 3 px to move away from canvas edges
12044					me.paddingRight = opts.position === 'bottom' ? (cosRotation * lineSpace) + 3 : (cosRotation * lastLabelWidth) + 3;
12045				} else {
12046					me.paddingLeft = firstLabelWidth / 2 + 3; // add 3 px to move away from canvas edges
12047					me.paddingRight = lastLabelWidth / 2 + 3;
12048				}
12049			} else {
12050				// A vertical axis is more constrained by the width. Labels are the
12051				// dominant factor here, so get that length first and account for padding
12052				if (tickOpts.mirror) {
12053					largestTextWidth = 0;
12054				} else {
12055					// use lineSpace for consistency with horizontal axis
12056					// tickPadding is not implemented for horizontal
12057					largestTextWidth += tickPadding + lineSpace;
12058				}
12059
12060				minSize.width = Math.min(me.maxWidth, minSize.width + largestTextWidth);
12061
12062				me.paddingTop = tickFont.size / 2;
12063				me.paddingBottom = tickFont.size / 2;
12064			}
12065		}
12066
12067		me.handleMargins();
12068
12069		me.width = minSize.width;
12070		me.height = minSize.height;
12071	},
12072
12073	/**
12074	 * Handle margins and padding interactions
12075	 * @private
12076	 */
12077	handleMargins: function() {
12078		var me = this;
12079		if (me.margins) {
12080			me.paddingLeft = Math.max(me.paddingLeft - me.margins.left, 0);
12081			me.paddingTop = Math.max(me.paddingTop - me.margins.top, 0);
12082			me.paddingRight = Math.max(me.paddingRight - me.margins.right, 0);
12083			me.paddingBottom = Math.max(me.paddingBottom - me.margins.bottom, 0);
12084		}
12085	},
12086
12087	afterFit: function() {
12088		helpers.callback(this.options.afterFit, [this]);
12089	},
12090
12091	// Shared Methods
12092	isHorizontal: function() {
12093		return this.options.position === 'top' || this.options.position === 'bottom';
12094	},
12095	isFullWidth: function() {
12096		return (this.options.fullWidth);
12097	},
12098
12099	// Get the correct value. NaN bad inputs, If the value type is object get the x or y based on whether we are horizontal or not
12100	getRightValue: function(rawValue) {
12101		// Null and undefined values first
12102		if (helpers.isNullOrUndef(rawValue)) {
12103			return NaN;
12104		}
12105		// isNaN(object) returns true, so make sure NaN is checking for a number; Discard Infinite values
12106		if (typeof rawValue === 'number' && !isFinite(rawValue)) {
12107			return NaN;
12108		}
12109		// If it is in fact an object, dive in one more level
12110		if (rawValue) {
12111			if (this.isHorizontal()) {
12112				if (rawValue.x !== undefined) {
12113					return this.getRightValue(rawValue.x);
12114				}
12115			} else if (rawValue.y !== undefined) {
12116				return this.getRightValue(rawValue.y);
12117			}
12118		}
12119
12120		// Value is good, return it
12121		return rawValue;
12122	},
12123
12124	/**
12125	 * Used to get the value to display in the tooltip for the data at the given index
12126	 * @param index
12127	 * @param datasetIndex
12128	 */
12129	getLabelForIndex: helpers.noop,
12130
12131	/**
12132	 * Returns the location of the given data point. Value can either be an index or a numerical value
12133	 * The coordinate (0, 0) is at the upper-left corner of the canvas
12134	 * @param value
12135	 * @param index
12136	 * @param datasetIndex
12137	 */
12138	getPixelForValue: helpers.noop,
12139
12140	/**
12141	 * Used to get the data value from a given pixel. This is the inverse of getPixelForValue
12142	 * The coordinate (0, 0) is at the upper-left corner of the canvas
12143	 * @param pixel
12144	 */
12145	getValueForPixel: helpers.noop,
12146
12147	/**
12148	 * Returns the location of the tick at the given index
12149	 * The coordinate (0, 0) is at the upper-left corner of the canvas
12150	 */
12151	getPixelForTick: function(index) {
12152		var me = this;
12153		var offset = me.options.offset;
12154		if (me.isHorizontal()) {
12155			var innerWidth = me.width - (me.paddingLeft + me.paddingRight);
12156			var tickWidth = innerWidth / Math.max((me._ticks.length - (offset ? 0 : 1)), 1);
12157			var pixel = (tickWidth * index) + me.paddingLeft;
12158
12159			if (offset) {
12160				pixel += tickWidth / 2;
12161			}
12162
12163			var finalVal = me.left + Math.round(pixel);
12164			finalVal += me.isFullWidth() ? me.margins.left : 0;
12165			return finalVal;
12166		}
12167		var innerHeight = me.height - (me.paddingTop + me.paddingBottom);
12168		return me.top + (index * (innerHeight / (me._ticks.length - 1)));
12169	},
12170
12171	/**
12172	 * Utility for getting the pixel location of a percentage of scale
12173	 * The coordinate (0, 0) is at the upper-left corner of the canvas
12174	 */
12175	getPixelForDecimal: function(decimal) {
12176		var me = this;
12177		if (me.isHorizontal()) {
12178			var innerWidth = me.width - (me.paddingLeft + me.paddingRight);
12179			var valueOffset = (innerWidth * decimal) + me.paddingLeft;
12180
12181			var finalVal = me.left + Math.round(valueOffset);
12182			finalVal += me.isFullWidth() ? me.margins.left : 0;
12183			return finalVal;
12184		}
12185		return me.top + (decimal * me.height);
12186	},
12187
12188	/**
12189	 * Returns the pixel for the minimum chart value
12190	 * The coordinate (0, 0) is at the upper-left corner of the canvas
12191	 */
12192	getBasePixel: function() {
12193		return this.getPixelForValue(this.getBaseValue());
12194	},
12195
12196	getBaseValue: function() {
12197		var me = this;
12198		var min = me.min;
12199		var max = me.max;
12200
12201		return me.beginAtZero ? 0 :
12202			min < 0 && max < 0 ? max :
12203			min > 0 && max > 0 ? min :
12204			0;
12205	},
12206
12207	/**
12208	 * Returns a subset of ticks to be plotted to avoid overlapping labels.
12209	 * @private
12210	 */
12211	_autoSkip: function(ticks) {
12212		var skipRatio;
12213		var me = this;
12214		var isHorizontal = me.isHorizontal();
12215		var optionTicks = me.options.ticks.minor;
12216		var tickCount = ticks.length;
12217		var labelRotationRadians = helpers.toRadians(me.labelRotation);
12218		var cosRotation = Math.cos(labelRotationRadians);
12219		var longestRotatedLabel = me.longestLabelWidth * cosRotation;
12220		var result = [];
12221		var i, tick, shouldSkip;
12222
12223		// figure out the maximum number of gridlines to show
12224		var maxTicks;
12225		if (optionTicks.maxTicksLimit) {
12226			maxTicks = optionTicks.maxTicksLimit;
12227		}
12228
12229		if (isHorizontal) {
12230			skipRatio = false;
12231
12232			if ((longestRotatedLabel + optionTicks.autoSkipPadding) * tickCount > (me.width - (me.paddingLeft + me.paddingRight))) {
12233				skipRatio = 1 + Math.floor(((longestRotatedLabel + optionTicks.autoSkipPadding) * tickCount) / (me.width - (me.paddingLeft + me.paddingRight)));
12234			}
12235
12236			// if they defined a max number of optionTicks,
12237			// increase skipRatio until that number is met
12238			if (maxTicks && tickCount > maxTicks) {
12239				skipRatio = Math.max(skipRatio, Math.floor(tickCount / maxTicks));
12240			}
12241		}
12242
12243		for (i = 0; i < tickCount; i++) {
12244			tick = ticks[i];
12245
12246			// Since we always show the last tick,we need may need to hide the last shown one before
12247			shouldSkip = (skipRatio > 1 && i % skipRatio > 0) || (i % skipRatio === 0 && i + skipRatio >= tickCount);
12248			if (shouldSkip && i !== tickCount - 1) {
12249				// leave tick in place but make sure it's not displayed (#4635)
12250				delete tick.label;
12251			}
12252			result.push(tick);
12253		}
12254		return result;
12255	},
12256
12257	// Actually draw the scale on the canvas
12258	// @param {rectangle} chartArea : the area of the chart to draw full grid lines on
12259	draw: function(chartArea) {
12260		var me = this;
12261		var options = me.options;
12262		if (!options.display) {
12263			return;
12264		}
12265
12266		var context = me.ctx;
12267		var globalDefaults = defaults.global;
12268		var optionTicks = options.ticks.minor;
12269		var optionMajorTicks = options.ticks.major || optionTicks;
12270		var gridLines = options.gridLines;
12271		var scaleLabel = options.scaleLabel;
12272
12273		var isRotated = me.labelRotation !== 0;
12274		var isHorizontal = me.isHorizontal();
12275
12276		var ticks = optionTicks.autoSkip ? me._autoSkip(me.getTicks()) : me.getTicks();
12277		var tickFontColor = helpers.valueOrDefault(optionTicks.fontColor, globalDefaults.defaultFontColor);
12278		var tickFont = parseFontOptions(optionTicks);
12279		var majorTickFontColor = helpers.valueOrDefault(optionMajorTicks.fontColor, globalDefaults.defaultFontColor);
12280		var majorTickFont = parseFontOptions(optionMajorTicks);
12281
12282		var tl = gridLines.drawTicks ? gridLines.tickMarkLength : 0;
12283
12284		var scaleLabelFontColor = helpers.valueOrDefault(scaleLabel.fontColor, globalDefaults.defaultFontColor);
12285		var scaleLabelFont = parseFontOptions(scaleLabel);
12286		var scaleLabelPadding = helpers.options.toPadding(scaleLabel.padding);
12287		var labelRotationRadians = helpers.toRadians(me.labelRotation);
12288
12289		var itemsToDraw = [];
12290
12291		var axisWidth = me.options.gridLines.lineWidth;
12292		var xTickStart = options.position === 'right' ? me.left : me.right - axisWidth - tl;
12293		var xTickEnd = options.position === 'right' ? me.left + tl : me.right;
12294		var yTickStart = options.position === 'bottom' ? me.top + axisWidth : me.bottom - tl - axisWidth;
12295		var yTickEnd = options.position === 'bottom' ? me.top + axisWidth + tl : me.bottom + axisWidth;
12296
12297		helpers.each(ticks, function(tick, index) {
12298			// autoskipper skipped this tick (#4635)
12299			if (helpers.isNullOrUndef(tick.label)) {
12300				return;
12301			}
12302
12303			var label = tick.label;
12304			var lineWidth, lineColor, borderDash, borderDashOffset;
12305			if (index === me.zeroLineIndex && options.offset === gridLines.offsetGridLines) {
12306				// Draw the first index specially
12307				lineWidth = gridLines.zeroLineWidth;
12308				lineColor = gridLines.zeroLineColor;
12309				borderDash = gridLines.zeroLineBorderDash;
12310				borderDashOffset = gridLines.zeroLineBorderDashOffset;
12311			} else {
12312				lineWidth = helpers.valueAtIndexOrDefault(gridLines.lineWidth, index);
12313				lineColor = helpers.valueAtIndexOrDefault(gridLines.color, index);
12314				borderDash = helpers.valueOrDefault(gridLines.borderDash, globalDefaults.borderDash);
12315				borderDashOffset = helpers.valueOrDefault(gridLines.borderDashOffset, globalDefaults.borderDashOffset);
12316			}
12317
12318			// Common properties
12319			var tx1, ty1, tx2, ty2, x1, y1, x2, y2, labelX, labelY;
12320			var textAlign = 'middle';
12321			var textBaseline = 'middle';
12322			var tickPadding = optionTicks.padding;
12323
12324			if (isHorizontal) {
12325				var labelYOffset = tl + tickPadding;
12326
12327				if (options.position === 'bottom') {
12328					// bottom
12329					textBaseline = !isRotated ? 'top' : 'middle';
12330					textAlign = !isRotated ? 'center' : 'right';
12331					labelY = me.top + labelYOffset;
12332				} else {
12333					// top
12334					textBaseline = !isRotated ? 'bottom' : 'middle';
12335					textAlign = !isRotated ? 'center' : 'left';
12336					labelY = me.bottom - labelYOffset;
12337				}
12338
12339				var xLineValue = getLineValue(me, index, gridLines.offsetGridLines && ticks.length > 1);
12340				if (xLineValue < me.left) {
12341					lineColor = 'rgba(0,0,0,0)';
12342				}
12343				xLineValue += helpers.aliasPixel(lineWidth);
12344
12345				labelX = me.getPixelForTick(index) + optionTicks.labelOffset; // x values for optionTicks (need to consider offsetLabel option)
12346
12347				tx1 = tx2 = x1 = x2 = xLineValue;
12348				ty1 = yTickStart;
12349				ty2 = yTickEnd;
12350				y1 = chartArea.top;
12351				y2 = chartArea.bottom + axisWidth;
12352			} else {
12353				var isLeft = options.position === 'left';
12354				var labelXOffset;
12355
12356				if (optionTicks.mirror) {
12357					textAlign = isLeft ? 'left' : 'right';
12358					labelXOffset = tickPadding;
12359				} else {
12360					textAlign = isLeft ? 'right' : 'left';
12361					labelXOffset = tl + tickPadding;
12362				}
12363
12364				labelX = isLeft ? me.right - labelXOffset : me.left + labelXOffset;
12365
12366				var yLineValue = getLineValue(me, index, gridLines.offsetGridLines && ticks.length > 1);
12367				if (yLineValue < me.top) {
12368					lineColor = 'rgba(0,0,0,0)';
12369				}
12370				yLineValue += helpers.aliasPixel(lineWidth);
12371
12372				labelY = me.getPixelForTick(index) + optionTicks.labelOffset;
12373
12374				tx1 = xTickStart;
12375				tx2 = xTickEnd;
12376				x1 = chartArea.left;
12377				x2 = chartArea.right + axisWidth;
12378				ty1 = ty2 = y1 = y2 = yLineValue;
12379			}
12380
12381			itemsToDraw.push({
12382				tx1: tx1,
12383				ty1: ty1,
12384				tx2: tx2,
12385				ty2: ty2,
12386				x1: x1,
12387				y1: y1,
12388				x2: x2,
12389				y2: y2,
12390				labelX: labelX,
12391				labelY: labelY,
12392				glWidth: lineWidth,
12393				glColor: lineColor,
12394				glBorderDash: borderDash,
12395				glBorderDashOffset: borderDashOffset,
12396				rotation: -1 * labelRotationRadians,
12397				label: label,
12398				major: tick.major,
12399				textBaseline: textBaseline,
12400				textAlign: textAlign
12401			});
12402		});
12403
12404		// Draw all of the tick labels, tick marks, and grid lines at the correct places
12405		helpers.each(itemsToDraw, function(itemToDraw) {
12406			if (gridLines.display) {
12407				context.save();
12408				context.lineWidth = itemToDraw.glWidth;
12409				context.strokeStyle = itemToDraw.glColor;
12410				if (context.setLineDash) {
12411					context.setLineDash(itemToDraw.glBorderDash);
12412					context.lineDashOffset = itemToDraw.glBorderDashOffset;
12413				}
12414
12415				context.beginPath();
12416
12417				if (gridLines.drawTicks) {
12418					context.moveTo(itemToDraw.tx1, itemToDraw.ty1);
12419					context.lineTo(itemToDraw.tx2, itemToDraw.ty2);
12420				}
12421
12422				if (gridLines.drawOnChartArea) {
12423					context.moveTo(itemToDraw.x1, itemToDraw.y1);
12424					context.lineTo(itemToDraw.x2, itemToDraw.y2);
12425				}
12426
12427				context.stroke();
12428				context.restore();
12429			}
12430
12431			if (optionTicks.display) {
12432				// Make sure we draw text in the correct color and font
12433				context.save();
12434				context.translate(itemToDraw.labelX, itemToDraw.labelY);
12435				context.rotate(itemToDraw.rotation);
12436				context.font = itemToDraw.major ? majorTickFont.font : tickFont.font;
12437				context.fillStyle = itemToDraw.major ? majorTickFontColor : tickFontColor;
12438				context.textBaseline = itemToDraw.textBaseline;
12439				context.textAlign = itemToDraw.textAlign;
12440
12441				var label = itemToDraw.label;
12442				if (helpers.isArray(label)) {
12443					var lineCount = label.length;
12444					var lineHeight = tickFont.size * 1.5;
12445					var y = me.isHorizontal() ? 0 : -lineHeight * (lineCount - 1) / 2;
12446
12447					for (var i = 0; i < lineCount; ++i) {
12448						// We just make sure the multiline element is a string here..
12449						context.fillText('' + label[i], 0, y);
12450						// apply same lineSpacing as calculated @ L#320
12451						y += lineHeight;
12452					}
12453				} else {
12454					context.fillText(label, 0, 0);
12455				}
12456				context.restore();
12457			}
12458		});
12459
12460		if (scaleLabel.display) {
12461			// Draw the scale label
12462			var scaleLabelX;
12463			var scaleLabelY;
12464			var rotation = 0;
12465			var halfLineHeight = parseLineHeight(scaleLabel) / 2;
12466
12467			if (isHorizontal) {
12468				scaleLabelX = me.left + ((me.right - me.left) / 2); // midpoint of the width
12469				scaleLabelY = options.position === 'bottom'
12470					? me.bottom - halfLineHeight - scaleLabelPadding.bottom
12471					: me.top + halfLineHeight + scaleLabelPadding.top;
12472			} else {
12473				var isLeft = options.position === 'left';
12474				scaleLabelX = isLeft
12475					? me.left + halfLineHeight + scaleLabelPadding.top
12476					: me.right - halfLineHeight - scaleLabelPadding.top;
12477				scaleLabelY = me.top + ((me.bottom - me.top) / 2);
12478				rotation = isLeft ? -0.5 * Math.PI : 0.5 * Math.PI;
12479			}
12480
12481			context.save();
12482			context.translate(scaleLabelX, scaleLabelY);
12483			context.rotate(rotation);
12484			context.textAlign = 'center';
12485			context.textBaseline = 'middle';
12486			context.fillStyle = scaleLabelFontColor; // render in correct colour
12487			context.font = scaleLabelFont.font;
12488			context.fillText(scaleLabel.labelString, 0, 0);
12489			context.restore();
12490		}
12491
12492		if (gridLines.drawBorder) {
12493			// Draw the line at the edge of the axis
12494			context.lineWidth = helpers.valueAtIndexOrDefault(gridLines.lineWidth, 0);
12495			context.strokeStyle = helpers.valueAtIndexOrDefault(gridLines.color, 0);
12496			var x1 = me.left;
12497			var x2 = me.right + axisWidth;
12498			var y1 = me.top;
12499			var y2 = me.bottom + axisWidth;
12500
12501			var aliasPixel = helpers.aliasPixel(context.lineWidth);
12502			if (isHorizontal) {
12503				y1 = y2 = options.position === 'top' ? me.bottom : me.top;
12504				y1 += aliasPixel;
12505				y2 += aliasPixel;
12506			} else {
12507				x1 = x2 = options.position === 'left' ? me.right : me.left;
12508				x1 += aliasPixel;
12509				x2 += aliasPixel;
12510			}
12511
12512			context.beginPath();
12513			context.moveTo(x1, y1);
12514			context.lineTo(x2, y2);
12515			context.stroke();
12516		}
12517	}
12518});
12519
12520},{"26":26,"27":27,"35":35,"46":46}],34:[function(require,module,exports){
12521'use strict';
12522
12523var defaults = require(26);
12524var helpers = require(46);
12525var layouts = require(31);
12526
12527module.exports = {
12528	// Scale registration object. Extensions can register new scale types (such as log or DB scales) and then
12529	// use the new chart options to grab the correct scale
12530	constructors: {},
12531	// Use a registration function so that we can move to an ES6 map when we no longer need to support
12532	// old browsers
12533
12534	// Scale config defaults
12535	defaults: {},
12536	registerScaleType: function(type, scaleConstructor, scaleDefaults) {
12537		this.constructors[type] = scaleConstructor;
12538		this.defaults[type] = helpers.clone(scaleDefaults);
12539	},
12540	getScaleConstructor: function(type) {
12541		return this.constructors.hasOwnProperty(type) ? this.constructors[type] : undefined;
12542	},
12543	getScaleDefaults: function(type) {
12544		// Return the scale defaults merged with the global settings so that we always use the latest ones
12545		return this.defaults.hasOwnProperty(type) ? helpers.merge({}, [defaults.scale, this.defaults[type]]) : {};
12546	},
12547	updateScaleDefaults: function(type, additions) {
12548		var me = this;
12549		if (me.defaults.hasOwnProperty(type)) {
12550			me.defaults[type] = helpers.extend(me.defaults[type], additions);
12551		}
12552	},
12553	addScalesToLayout: function(chart) {
12554		// Adds each scale to the chart.boxes array to be sized accordingly
12555		helpers.each(chart.scales, function(scale) {
12556			// Set ILayoutItem parameters for backwards compatibility
12557			scale.fullWidth = scale.options.fullWidth;
12558			scale.position = scale.options.position;
12559			scale.weight = scale.options.weight;
12560			layouts.addBox(chart, scale);
12561		});
12562	}
12563};
12564
12565},{"26":26,"31":31,"46":46}],35:[function(require,module,exports){
12566'use strict';
12567
12568var helpers = require(46);
12569
12570/**
12571 * Namespace to hold static tick generation functions
12572 * @namespace Chart.Ticks
12573 */
12574module.exports = {
12575	/**
12576	 * Namespace to hold formatters for different types of ticks
12577	 * @namespace Chart.Ticks.formatters
12578	 */
12579	formatters: {
12580		/**
12581		 * Formatter for value labels
12582		 * @method Chart.Ticks.formatters.values
12583		 * @param value the value to display
12584		 * @return {String|Array} the label to display
12585		 */
12586		values: function(value) {
12587			return helpers.isArray(value) ? value : '' + value;
12588		},
12589
12590		/**
12591		 * Formatter for linear numeric ticks
12592		 * @method Chart.Ticks.formatters.linear
12593		 * @param tickValue {Number} the value to be formatted
12594		 * @param index {Number} the position of the tickValue parameter in the ticks array
12595		 * @param ticks {Array<Number>} the list of ticks being converted
12596		 * @return {String} string representation of the tickValue parameter
12597		 */
12598		linear: function(tickValue, index, ticks) {
12599			// If we have lots of ticks, don't use the ones
12600			var delta = ticks.length > 3 ? ticks[2] - ticks[1] : ticks[1] - ticks[0];
12601
12602			// If we have a number like 2.5 as the delta, figure out how many decimal places we need
12603			if (Math.abs(delta) > 1) {
12604				if (tickValue !== Math.floor(tickValue)) {
12605					// not an integer
12606					delta = tickValue - Math.floor(tickValue);
12607				}
12608			}
12609
12610			var logDelta = helpers.log10(Math.abs(delta));
12611			var tickString = '';
12612
12613			if (tickValue !== 0) {
12614				var maxTick = Math.max(Math.abs(ticks[0]), Math.abs(ticks[ticks.length - 1]));
12615				if (maxTick < 1e-4) { // all ticks are small numbers; use scientific notation
12616					var logTick = helpers.log10(Math.abs(tickValue));
12617					tickString = tickValue.toExponential(Math.floor(logTick) - Math.floor(logDelta));
12618				} else {
12619					var numDecimal = -1 * Math.floor(logDelta);
12620					numDecimal = Math.max(Math.min(numDecimal, 20), 0); // toFixed has a max of 20 decimal places
12621					tickString = tickValue.toFixed(numDecimal);
12622				}
12623			} else {
12624				tickString = '0'; // never show decimal places for 0
12625			}
12626
12627			return tickString;
12628		},
12629
12630		logarithmic: function(tickValue, index, ticks) {
12631			var remain = tickValue / (Math.pow(10, Math.floor(helpers.log10(tickValue))));
12632
12633			if (tickValue === 0) {
12634				return '0';
12635			} else if (remain === 1 || remain === 2 || remain === 5 || index === 0 || index === ticks.length - 1) {
12636				return tickValue.toExponential();
12637			}
12638			return '';
12639		}
12640	}
12641};
12642
12643},{"46":46}],36:[function(require,module,exports){
12644'use strict';
12645
12646var defaults = require(26);
12647var Element = require(27);
12648var helpers = require(46);
12649
12650defaults._set('global', {
12651	tooltips: {
12652		enabled: true,
12653		custom: null,
12654		mode: 'nearest',
12655		position: 'average',
12656		intersect: true,
12657		backgroundColor: 'rgba(0,0,0,0.8)',
12658		titleFontStyle: 'bold',
12659		titleSpacing: 2,
12660		titleMarginBottom: 6,
12661		titleFontColor: '#fff',
12662		titleAlign: 'left',
12663		bodySpacing: 2,
12664		bodyFontColor: '#fff',
12665		bodyAlign: 'left',
12666		footerFontStyle: 'bold',
12667		footerSpacing: 2,
12668		footerMarginTop: 6,
12669		footerFontColor: '#fff',
12670		footerAlign: 'left',
12671		yPadding: 6,
12672		xPadding: 6,
12673		caretPadding: 2,
12674		caretSize: 5,
12675		cornerRadius: 6,
12676		multiKeyBackground: '#fff',
12677		displayColors: true,
12678		borderColor: 'rgba(0,0,0,0)',
12679		borderWidth: 0,
12680		callbacks: {
12681			// Args are: (tooltipItems, data)
12682			beforeTitle: helpers.noop,
12683			title: function(tooltipItems, data) {
12684				// Pick first xLabel for now
12685				var title = '';
12686				var labels = data.labels;
12687				var labelCount = labels ? labels.length : 0;
12688
12689				if (tooltipItems.length > 0) {
12690					var item = tooltipItems[0];
12691
12692					if (item.xLabel) {
12693						title = item.xLabel;
12694					} else if (labelCount > 0 && item.index < labelCount) {
12695						title = labels[item.index];
12696					}
12697				}
12698
12699				return title;
12700			},
12701			afterTitle: helpers.noop,
12702
12703			// Args are: (tooltipItems, data)
12704			beforeBody: helpers.noop,
12705
12706			// Args are: (tooltipItem, data)
12707			beforeLabel: helpers.noop,
12708			label: function(tooltipItem, data) {
12709				var label = data.datasets[tooltipItem.datasetIndex].label || '';
12710
12711				if (label) {
12712					label += ': ';
12713				}
12714				label += tooltipItem.yLabel;
12715				return label;
12716			},
12717			labelColor: function(tooltipItem, chart) {
12718				var meta = chart.getDatasetMeta(tooltipItem.datasetIndex);
12719				var activeElement = meta.data[tooltipItem.index];
12720				var view = activeElement._view;
12721				return {
12722					borderColor: view.borderColor,
12723					backgroundColor: view.backgroundColor
12724				};
12725			},
12726			labelTextColor: function() {
12727				return this._options.bodyFontColor;
12728			},
12729			afterLabel: helpers.noop,
12730
12731			// Args are: (tooltipItems, data)
12732			afterBody: helpers.noop,
12733
12734			// Args are: (tooltipItems, data)
12735			beforeFooter: helpers.noop,
12736			footer: helpers.noop,
12737			afterFooter: helpers.noop
12738		}
12739	}
12740});
12741
12742var positioners = {
12743	/**
12744	 * Average mode places the tooltip at the average position of the elements shown
12745	 * @function Chart.Tooltip.positioners.average
12746	 * @param elements {ChartElement[]} the elements being displayed in the tooltip
12747	 * @returns {Point} tooltip position
12748	 */
12749	average: function(elements) {
12750		if (!elements.length) {
12751			return false;
12752		}
12753
12754		var i, len;
12755		var x = 0;
12756		var y = 0;
12757		var count = 0;
12758
12759		for (i = 0, len = elements.length; i < len; ++i) {
12760			var el = elements[i];
12761			if (el && el.hasValue()) {
12762				var pos = el.tooltipPosition();
12763				x += pos.x;
12764				y += pos.y;
12765				++count;
12766			}
12767		}
12768
12769		return {
12770			x: Math.round(x / count),
12771			y: Math.round(y / count)
12772		};
12773	},
12774
12775	/**
12776	 * Gets the tooltip position nearest of the item nearest to the event position
12777	 * @function Chart.Tooltip.positioners.nearest
12778	 * @param elements {Chart.Element[]} the tooltip elements
12779	 * @param eventPosition {Point} the position of the event in canvas coordinates
12780	 * @returns {Point} the tooltip position
12781	 */
12782	nearest: function(elements, eventPosition) {
12783		var x = eventPosition.x;
12784		var y = eventPosition.y;
12785		var minDistance = Number.POSITIVE_INFINITY;
12786		var i, len, nearestElement;
12787
12788		for (i = 0, len = elements.length; i < len; ++i) {
12789			var el = elements[i];
12790			if (el && el.hasValue()) {
12791				var center = el.getCenterPoint();
12792				var d = helpers.distanceBetweenPoints(eventPosition, center);
12793
12794				if (d < minDistance) {
12795					minDistance = d;
12796					nearestElement = el;
12797				}
12798			}
12799		}
12800
12801		if (nearestElement) {
12802			var tp = nearestElement.tooltipPosition();
12803			x = tp.x;
12804			y = tp.y;
12805		}
12806
12807		return {
12808			x: x,
12809			y: y
12810		};
12811	}
12812};
12813
12814/**
12815 * Helper method to merge the opacity into a color
12816 */
vendor: 14,085 bytes, lines 12817-13285
12817function mergeOpacity(colorString, opacity) {
12818	var color = helpers.color(colorString);
12819	return color.alpha(opacity * color.alpha()).rgbaString();
12820}
12821
12822// Helper to push or concat based on if the 2nd parameter is an array or not
12823function pushOrConcat(base, toPush) {
12824	if (toPush) {
12825		if (helpers.isArray(toPush)) {
12826			// base = base.concat(toPush);
12827			Array.prototype.push.apply(base, toPush);
12828		} else {
12829			base.push(toPush);
12830		}
12831	}
12832
12833	return base;
12834}
12835
12836/**
12837 * Returns array of strings split by newline
12838 * @param {String} value - The value to split by newline.
12839 * @returns {Array} value if newline present - Returned from String split() method
12840 * @function
12841 */
12842function splitNewlines(str) {
12843	if ((typeof str === 'string' || str instanceof String) && str.indexOf('\n') > -1) {
12844		return str.split('\n');
12845	}
12846	return str;
12847}
12848
12849
12850// Private helper to create a tooltip item model
12851// @param element : the chart element (point, arc, bar) to create the tooltip item for
12852// @return : new tooltip item
12853function createTooltipItem(element) {
12854	var xScale = element._xScale;
12855	var yScale = element._yScale || element._scale; // handle radar || polarArea charts
12856	var index = element._index;
12857	var datasetIndex = element._datasetIndex;
12858
12859	return {
12860		xLabel: xScale ? xScale.getLabelForIndex(index, datasetIndex) : '',
12861		yLabel: yScale ? yScale.getLabelForIndex(index, datasetIndex) : '',
12862		index: index,
12863		datasetIndex: datasetIndex,
12864		x: element._model.x,
12865		y: element._model.y
12866	};
12867}
12868
12869/**
12870 * Helper to get the reset model for the tooltip
12871 * @param tooltipOpts {Object} the tooltip options
12872 */
12873function getBaseModel(tooltipOpts) {
12874	var globalDefaults = defaults.global;
12875	var valueOrDefault = helpers.valueOrDefault;
12876
12877	return {
12878		// Positioning
12879		xPadding: tooltipOpts.xPadding,
12880		yPadding: tooltipOpts.yPadding,
12881		xAlign: tooltipOpts.xAlign,
12882		yAlign: tooltipOpts.yAlign,
12883
12884		// Body
12885		bodyFontColor: tooltipOpts.bodyFontColor,
12886		_bodyFontFamily: valueOrDefault(tooltipOpts.bodyFontFamily, globalDefaults.defaultFontFamily),
12887		_bodyFontStyle: valueOrDefault(tooltipOpts.bodyFontStyle, globalDefaults.defaultFontStyle),
12888		_bodyAlign: tooltipOpts.bodyAlign,
12889		bodyFontSize: valueOrDefault(tooltipOpts.bodyFontSize, globalDefaults.defaultFontSize),
12890		bodySpacing: tooltipOpts.bodySpacing,
12891
12892		// Title
12893		titleFontColor: tooltipOpts.titleFontColor,
12894		_titleFontFamily: valueOrDefault(tooltipOpts.titleFontFamily, globalDefaults.defaultFontFamily),
12895		_titleFontStyle: valueOrDefault(tooltipOpts.titleFontStyle, globalDefaults.defaultFontStyle),
12896		titleFontSize: valueOrDefault(tooltipOpts.titleFontSize, globalDefaults.defaultFontSize),
12897		_titleAlign: tooltipOpts.titleAlign,
12898		titleSpacing: tooltipOpts.titleSpacing,
12899		titleMarginBottom: tooltipOpts.titleMarginBottom,
12900
12901		// Footer
12902		footerFontColor: tooltipOpts.footerFontColor,
12903		_footerFontFamily: valueOrDefault(tooltipOpts.footerFontFamily, globalDefaults.defaultFontFamily),
12904		_footerFontStyle: valueOrDefault(tooltipOpts.footerFontStyle, globalDefaults.defaultFontStyle),
12905		footerFontSize: valueOrDefault(tooltipOpts.footerFontSize, globalDefaults.defaultFontSize),
12906		_footerAlign: tooltipOpts.footerAlign,
12907		footerSpacing: tooltipOpts.footerSpacing,
12908		footerMarginTop: tooltipOpts.footerMarginTop,
12909
12910		// Appearance
12911		caretSize: tooltipOpts.caretSize,
12912		cornerRadius: tooltipOpts.cornerRadius,
12913		backgroundColor: tooltipOpts.backgroundColor,
12914		opacity: 0,
12915		legendColorBackground: tooltipOpts.multiKeyBackground,
12916		displayColors: tooltipOpts.displayColors,
12917		borderColor: tooltipOpts.borderColor,
12918		borderWidth: tooltipOpts.borderWidth
12919	};
12920}
12921
12922/**
12923 * Get the size of the tooltip
12924 */
12925function getTooltipSize(tooltip, model) {
12926	var ctx = tooltip._chart.ctx;
12927
12928	var height = model.yPadding * 2; // Tooltip Padding
12929	var width = 0;
12930
12931	// Count of all lines in the body
12932	var body = model.body;
12933	var combinedBodyLength = body.reduce(function(count, bodyItem) {
12934		return count + bodyItem.before.length + bodyItem.lines.length + bodyItem.after.length;
12935	}, 0);
12936	combinedBodyLength += model.beforeBody.length + model.afterBody.length;
12937
12938	var titleLineCount = model.title.length;
12939	var footerLineCount = model.footer.length;
12940	var titleFontSize = model.titleFontSize;
12941	var bodyFontSize = model.bodyFontSize;
12942	var footerFontSize = model.footerFontSize;
12943
12944	height += titleLineCount * titleFontSize; // Title Lines
12945	height += titleLineCount ? (titleLineCount - 1) * model.titleSpacing : 0; // Title Line Spacing
12946	height += titleLineCount ? model.titleMarginBottom : 0; // Title's bottom Margin
12947	height += combinedBodyLength * bodyFontSize; // Body Lines
12948	height += combinedBodyLength ? (combinedBodyLength - 1) * model.bodySpacing : 0; // Body Line Spacing
12949	height += footerLineCount ? model.footerMarginTop : 0; // Footer Margin
12950	height += footerLineCount * (footerFontSize); // Footer Lines
12951	height += footerLineCount ? (footerLineCount - 1) * model.footerSpacing : 0; // Footer Line Spacing
12952
12953	// Title width
12954	var widthPadding = 0;
12955	var maxLineWidth = function(line) {
12956		width = Math.max(width, ctx.measureText(line).width + widthPadding);
12957	};
12958
12959	ctx.font = helpers.fontString(titleFontSize, model._titleFontStyle, model._titleFontFamily);
12960	helpers.each(model.title, maxLineWidth);
12961
12962	// Body width
12963	ctx.font = helpers.fontString(bodyFontSize, model._bodyFontStyle, model._bodyFontFamily);
12964	helpers.each(model.beforeBody.concat(model.afterBody), maxLineWidth);
12965
12966	// Body lines may include some extra width due to the color box
12967	widthPadding = model.displayColors ? (bodyFontSize + 2) : 0;
12968	helpers.each(body, function(bodyItem) {
12969		helpers.each(bodyItem.before, maxLineWidth);
12970		helpers.each(bodyItem.lines, maxLineWidth);
12971		helpers.each(bodyItem.after, maxLineWidth);
12972	});
12973
12974	// Reset back to 0
12975	widthPadding = 0;
12976
12977	// Footer width
12978	ctx.font = helpers.fontString(footerFontSize, model._footerFontStyle, model._footerFontFamily);
12979	helpers.each(model.footer, maxLineWidth);
12980
12981	// Add padding
12982	width += 2 * model.xPadding;
12983
12984	return {
12985		width: width,
12986		height: height
12987	};
12988}
12989
12990/**
12991 * Helper to get the alignment of a tooltip given the size
12992 */
12993function determineAlignment(tooltip, size) {
12994	var model = tooltip._model;
12995	var chart = tooltip._chart;
12996	var chartArea = tooltip._chart.chartArea;
12997	var xAlign = 'center';
12998	var yAlign = 'center';
12999
13000	if (model.y < size.height) {
13001		yAlign = 'top';
13002	} else if (model.y > (chart.height - size.height)) {
13003		yAlign = 'bottom';
13004	}
13005
13006	var lf, rf; // functions to determine left, right alignment
13007	var olf, orf; // functions to determine if left/right alignment causes tooltip to go outside chart
13008	var yf; // function to get the y alignment if the tooltip goes outside of the left or right edges
13009	var midX = (chartArea.left + chartArea.right) / 2;
13010	var midY = (chartArea.top + chartArea.bottom) / 2;
13011
13012	if (yAlign === 'center') {
13013		lf = function(x) {
13014			return x <= midX;
13015		};
13016		rf = function(x) {
13017			return x > midX;
13018		};
13019	} else {
13020		lf = function(x) {
13021			return x <= (size.width / 2);
13022		};
13023		rf = function(x) {
13024			return x >= (chart.width - (size.width / 2));
13025		};
13026	}
13027
13028	olf = function(x) {
13029		return x + size.width + model.caretSize + model.caretPadding > chart.width;
13030	};
13031	orf = function(x) {
13032		return x - size.width - model.caretSize - model.caretPadding < 0;
13033	};
13034	yf = function(y) {
13035		return y <= midY ? 'top' : 'bottom';
13036	};
13037
13038	if (lf(model.x)) {
13039		xAlign = 'left';
13040
13041		// Is tooltip too wide and goes over the right side of the chart.?
13042		if (olf(model.x)) {
13043			xAlign = 'center';
13044			yAlign = yf(model.y);
13045		}
13046	} else if (rf(model.x)) {
13047		xAlign = 'right';
13048
13049		// Is tooltip too wide and goes outside left edge of canvas?
13050		if (orf(model.x)) {
13051			xAlign = 'center';
13052			yAlign = yf(model.y);
13053		}
13054	}
13055
13056	var opts = tooltip._options;
13057	return {
13058		xAlign: opts.xAlign ? opts.xAlign : xAlign,
13059		yAlign: opts.yAlign ? opts.yAlign : yAlign
13060	};
13061}
13062
13063/**
13064 * Helper to get the location a tooltip needs to be placed at given the initial position (via the vm) and the size and alignment
13065 */
13066function getBackgroundPoint(vm, size, alignment, chart) {
13067	// Background Position
13068	var x = vm.x;
13069	var y = vm.y;
13070
13071	var caretSize = vm.caretSize;
13072	var caretPadding = vm.caretPadding;
13073	var cornerRadius = vm.cornerRadius;
13074	var xAlign = alignment.xAlign;
13075	var yAlign = alignment.yAlign;
13076	var paddingAndSize = caretSize + caretPadding;
13077	var radiusAndPadding = cornerRadius + caretPadding;
13078
13079	if (xAlign === 'right') {
13080		x -= size.width;
13081	} else if (xAlign === 'center') {
13082		x -= (size.width / 2);
13083		if (x + size.width > chart.width) {
13084			x = chart.width - size.width;
13085		}
13086		if (x < 0) {
13087			x = 0;
13088		}
13089	}
13090
13091	if (yAlign === 'top') {
13092		y += paddingAndSize;
13093	} else if (yAlign === 'bottom') {
13094		y -= size.height + paddingAndSize;
13095	} else {
13096		y -= (size.height / 2);
13097	}
13098
13099	if (yAlign === 'center') {
13100		if (xAlign === 'left') {
13101			x += paddingAndSize;
13102		} else if (xAlign === 'right') {
13103			x -= paddingAndSize;
13104		}
13105	} else if (xAlign === 'left') {
13106		x -= radiusAndPadding;
13107	} else if (xAlign === 'right') {
13108		x += radiusAndPadding;
13109	}
13110
13111	return {
13112		x: x,
13113		y: y
13114	};
13115}
13116
13117/**
13118 * Helper to build before and after body lines
13119 */
13120function getBeforeAfterBodyLines(callback) {
13121	return pushOrConcat([], splitNewlines(callback));
13122}
13123
13124var exports = module.exports = Element.extend({
13125	initialize: function() {
13126		this._model = getBaseModel(this._options);
13127		this._lastActive = [];
13128	},
13129
13130	// Get the title
13131	// Args are: (tooltipItem, data)
13132	getTitle: function() {
13133		var me = this;
13134		var opts = me._options;
13135		var callbacks = opts.callbacks;
13136
13137		var beforeTitle = callbacks.beforeTitle.apply(me, arguments);
13138		var title = callbacks.title.apply(me, arguments);
13139		var afterTitle = callbacks.afterTitle.apply(me, arguments);
13140
13141		var lines = [];
13142		lines = pushOrConcat(lines, splitNewlines(beforeTitle));
13143		lines = pushOrConcat(lines, splitNewlines(title));
13144		lines = pushOrConcat(lines, splitNewlines(afterTitle));
13145
13146		return lines;
13147	},
13148
13149	// Args are: (tooltipItem, data)
13150	getBeforeBody: function() {
13151		return getBeforeAfterBodyLines(this._options.callbacks.beforeBody.apply(this, arguments));
13152	},
13153
13154	// Args are: (tooltipItem, data)
13155	getBody: function(tooltipItems, data) {
13156		var me = this;
13157		var callbacks = me._options.callbacks;
13158		var bodyItems = [];
13159
13160		helpers.each(tooltipItems, function(tooltipItem) {
13161			var bodyItem = {
13162				before: [],
13163				lines: [],
13164				after: []
13165			};
13166			pushOrConcat(bodyItem.before, splitNewlines(callbacks.beforeLabel.call(me, tooltipItem, data)));
13167			pushOrConcat(bodyItem.lines, callbacks.label.call(me, tooltipItem, data));
13168			pushOrConcat(bodyItem.after, splitNewlines(callbacks.afterLabel.call(me, tooltipItem, data)));
13169
13170			bodyItems.push(bodyItem);
13171		});
13172
13173		return bodyItems;
13174	},
13175
13176	// Args are: (tooltipItem, data)
13177	getAfterBody: function() {
13178		return getBeforeAfterBodyLines(this._options.callbacks.afterBody.apply(this, arguments));
13179	},
13180
13181	// Get the footer and beforeFooter and afterFooter lines
13182	// Args are: (tooltipItem, data)
13183	getFooter: function() {
13184		var me = this;
13185		var callbacks = me._options.callbacks;
13186
13187		var beforeFooter = callbacks.beforeFooter.apply(me, arguments);
13188		var footer = callbacks.footer.apply(me, arguments);
13189		var afterFooter = callbacks.afterFooter.apply(me, arguments);
13190
13191		var lines = [];
13192		lines = pushOrConcat(lines, splitNewlines(beforeFooter));
13193		lines = pushOrConcat(lines, splitNewlines(footer));
13194		lines = pushOrConcat(lines, splitNewlines(afterFooter));
13195
13196		return lines;
13197	},
13198
13199	update: function(changed) {
13200		var me = this;
13201		var opts = me._options;
13202
13203		// Need to regenerate the model because its faster than using extend and it is necessary due to the optimization in Chart.Element.transition
13204		// that does _view = _model if ease === 1. This causes the 2nd tooltip update to set properties in both the view and model at the same time
13205		// which breaks any animations.
13206		var existingModel = me._model;
13207		var model = me._model = getBaseModel(opts);
13208		var active = me._active;
13209
13210		var data = me._data;
13211
13212		// In the case where active.length === 0 we need to keep these at existing values for good animations
13213		var alignment = {
13214			xAlign: existingModel.xAlign,
13215			yAlign: existingModel.yAlign
13216		};
13217		var backgroundPoint = {
13218			x: existingModel.x,
13219			y: existingModel.y
13220		};
13221		var tooltipSize = {
13222			width: existingModel.width,
13223			height: existingModel.height
13224		};
13225		var tooltipPosition = {
13226			x: existingModel.caretX,
13227			y: existingModel.caretY
13228		};
13229
13230		var i, len;
13231
13232		if (active.length) {
13233			model.opacity = 1;
13234
13235			var labelColors = [];
13236			var labelTextColors = [];
13237			tooltipPosition = positioners[opts.position].call(me, active, me._eventPosition);
13238
13239			var tooltipItems = [];
13240			for (i = 0, len = active.length; i < len; ++i) {
13241				tooltipItems.push(createTooltipItem(active[i]));
13242			}
13243
13244			// If the user provided a filter function, use it to modify the tooltip items
13245			if (opts.filter) {
13246				tooltipItems = tooltipItems.filter(function(a) {
13247					return opts.filter(a, data);
13248				});
13249			}
13250
13251			// If the user provided a sorting function, use it to modify the tooltip items
13252			if (opts.itemSort) {
13253				tooltipItems = tooltipItems.sort(function(a, b) {
13254					return opts.itemSort(a, b, data);
13255				});
13256			}
13257
13258			// Determine colors for boxes
13259			helpers.each(tooltipItems, function(tooltipItem) {
13260				labelColors.push(opts.callbacks.labelColor.call(me, tooltipItem, me._chart));
13261				labelTextColors.push(opts.callbacks.labelTextColor.call(me, tooltipItem, me._chart));
13262			});
13263
13264
13265			// Build the Text Lines
13266			model.title = me.getTitle(tooltipItems, data);
13267			model.beforeBody = me.getBeforeBody(tooltipItems, data);
13268			model.body = me.getBody(tooltipItems, data);
13269			model.afterBody = me.getAfterBody(tooltipItems, data);
13270			model.footer = me.getFooter(tooltipItems, data);
13271
13272			// Initial positioning and colors
13273			model.x = Math.round(tooltipPosition.x);
13274			model.y = Math.round(tooltipPosition.y);
13275			model.caretPadding = opts.caretPadding;
13276			model.labelColors = labelColors;
13277			model.labelTextColors = labelTextColors;
13278
13279			// data points
13280			model.dataPoints = tooltipItems;
13281
13282			// We need to determine alignment of the tooltip
13283			tooltipSize = getTooltipSize(this, model);
13284			alignment = determineAlignment(this, tooltipSize);
13285			// Final Size and Position
13286			backgroundPoint = getBackgroundPoint(model, tooltipSize, alignment, me._chart);
13287		} else {
13288			model.opacity = 0;
13289		}
13290
13291		model.xAlign = alignment.xAlign;
13292		model.yAlign = alignment.yAlign;
13293		model.x = backgroundPoint.x;
13294		model.y = backgroundPoint.y;
13295		model.width = tooltipSize.width;
13296		model.height = tooltipSize.height;
13297
13298		// Point where the caret on the tooltip points to
13299		model.caretX = tooltipPosition.x;
13300		model.caretY = tooltipPosition.y;
13301
13302		me._model = model;
13303
13304		if (changed && opts.custom) {
13305			opts.custom.call(me, model);
13306		}
13307
13308		return me;
13309	},
13310
13311	drawCaret: function(tooltipPoint, size) {
13312		var ctx = this._chart.ctx;
13313		var vm = this._view;
13314		var caretPosition = this.getCaretPosition(tooltipPoint, size, vm);
13315
13316		ctx.lineTo(caretPosition.x1, caretPosition.y1);
13317		ctx.lineTo(caretPosition.x2, caretPosition.y2);
13318		ctx.lineTo(caretPosition.x3, caretPosition.y3);
13319	},
13320	getCaretPosition: function(tooltipPoint, size, vm) {
13321		var x1, x2, x3, y1, y2, y3;
13322		var caretSize = vm.caretSize;
13323		var cornerRadius = vm.cornerRadius;
13324		var xAlign = vm.xAlign;
13325		var yAlign = vm.yAlign;
13326		var ptX = tooltipPoint.x;
13327		var ptY = tooltipPoint.y;
13328		var width = size.width;
13329		var height = size.height;
13330
13331		if (yAlign === 'center') {
13332			y2 = ptY + (height / 2);
13333
13334			if (xAlign === 'left') {
13335				x1 = ptX;
13336				x2 = x1 - caretSize;
13337				x3 = x1;
13338
13339				y1 = y2 + caretSize;
13340				y3 = y2 - caretSize;
13341			} else {
13342				x1 = ptX + width;
13343				x2 = x1 + caretSize;
13344				x3 = x1;
13345
13346				y1 = y2 - caretSize;
13347				y3 = y2 + caretSize;
13348			}
13349		} else {
13350			if (xAlign === 'left') {
13351				x2 = ptX + cornerRadius + (caretSize);
13352				x1 = x2 - caretSize;
13353				x3 = x2 + caretSize;
13354			} else if (xAlign === 'right') {
13355				x2 = ptX + width - cornerRadius - caretSize;
13356				x1 = x2 - caretSize;
13357				x3 = x2 + caretSize;
13358			} else {
13359				x2 = vm.caretX;
13360				x1 = x2 - caretSize;
13361				x3 = x2 + caretSize;
13362			}
13363			if (yAlign === 'top') {
13364				y1 = ptY;
13365				y2 = y1 - caretSize;
13366				y3 = y1;
13367			} else {
13368				y1 = ptY + height;
13369				y2 = y1 + caretSize;
13370				y3 = y1;
13371				// invert drawing order
13372				var tmp = x3;
13373				x3 = x1;
13374				x1 = tmp;
13375			}
13376		}
13377		return {x1: x1, x2: x2, x3: x3, y1: y1, y2: y2, y3: y3};
13378	},
13379
13380	drawTitle: function(pt, vm, ctx, opacity) {
13381		var title = vm.title;
13382
13383		if (title.length) {
13384			ctx.textAlign = vm._titleAlign;
13385			ctx.textBaseline = 'top';
13386
13387			var titleFontSize = vm.titleFontSize;
13388			var titleSpacing = vm.titleSpacing;
13389
13390			ctx.fillStyle = mergeOpacity(vm.titleFontColor, opacity);
13391			ctx.font = helpers.fontString(titleFontSize, vm._titleFontStyle, vm._titleFontFamily);
13392
13393			var i, len;
13394			for (i = 0, len = title.length; i < len; ++i) {
13395				ctx.fillText(title[i], pt.x, pt.y);
13396				pt.y += titleFontSize + titleSpacing; // Line Height and spacing
13397
13398				if (i + 1 === title.length) {
13399					pt.y += vm.titleMarginBottom - titleSpacing; // If Last, add margin, remove spacing
13400				}
13401			}
13402		}
13403	},
13404
13405	drawBody: function(pt, vm, ctx, opacity) {
13406		var bodyFontSize = vm.bodyFontSize;
13407		var bodySpacing = vm.bodySpacing;
13408		var body = vm.body;
13409
13410		ctx.textAlign = vm._bodyAlign;
13411		ctx.textBaseline = 'top';
13412		ctx.font = helpers.fontString(bodyFontSize, vm._bodyFontStyle, vm._bodyFontFamily);
13413
13414		// Before Body
13415		var xLinePadding = 0;
13416		var fillLineOfText = function(line) {
13417			ctx.fillText(line, pt.x + xLinePadding, pt.y);
13418			pt.y += bodyFontSize + bodySpacing;
13419		};
13420
13421		// Before body lines
13422		ctx.fillStyle = mergeOpacity(vm.bodyFontColor, opacity);
13423		helpers.each(vm.beforeBody, fillLineOfText);
13424
13425		var drawColorBoxes = vm.displayColors;
13426		xLinePadding = drawColorBoxes ? (bodyFontSize + 2) : 0;
13427
13428		// Draw body lines now
13429		helpers.each(body, function(bodyItem, i) {
13430			var textColor = mergeOpacity(vm.labelTextColors[i], opacity);
13431			ctx.fillStyle = textColor;
13432			helpers.each(bodyItem.before, fillLineOfText);
13433
13434			helpers.each(bodyItem.lines, function(line) {
13435				// Draw Legend-like boxes if needed
13436				if (drawColorBoxes) {
13437					// Fill a white rect so that colours merge nicely if the opacity is < 1
13438					ctx.fillStyle = mergeOpacity(vm.legendColorBackground, opacity);
13439					ctx.fillRect(pt.x, pt.y, bodyFontSize, bodyFontSize);
13440
13441					// Border
13442					ctx.lineWidth = 1;
13443					ctx.strokeStyle = mergeOpacity(vm.labelColors[i].borderColor, opacity);
13444					ctx.strokeRect(pt.x, pt.y, bodyFontSize, bodyFontSize);
13445
13446					// Inner square
13447					ctx.fillStyle = mergeOpacity(vm.labelColors[i].backgroundColor, opacity);
13448					ctx.fillRect(pt.x + 1, pt.y + 1, bodyFontSize - 2, bodyFontSize - 2);
13449					ctx.fillStyle = textColor;
13450				}
13451
13452				fillLineOfText(line);
13453			});
13454
13455			helpers.each(bodyItem.after, fillLineOfText);
13456		});
13457
13458		// Reset back to 0 for after body
13459		xLinePadding = 0;
13460
13461		// After body lines
13462		helpers.each(vm.afterBody, fillLineOfText);
13463		pt.y -= bodySpacing; // Remove last body spacing
13464	},
13465
13466	drawFooter: function(pt, vm, ctx, opacity) {
13467		var footer = vm.footer;
13468
13469		if (footer.length) {
13470			pt.y += vm.footerMarginTop;
13471
13472			ctx.textAlign = vm._footerAlign;
13473			ctx.textBaseline = 'top';
13474
13475			ctx.fillStyle = mergeOpacity(vm.footerFontColor, opacity);
13476			ctx.font = helpers.fontString(vm.footerFontSize, vm._footerFontStyle, vm._footerFontFamily);
13477
13478			helpers.each(footer, function(line) {
13479				ctx.fillText(line, pt.x, pt.y);
13480				pt.y += vm.footerFontSize + vm.footerSpacing;
13481			});
13482		}
13483	},
13484
13485	drawBackground: function(pt, vm, ctx, tooltipSize, opacity) {
13486		ctx.fillStyle = mergeOpacity(vm.backgroundColor, opacity);
13487		ctx.strokeStyle = mergeOpacity(vm.borderColor, opacity);
13488		ctx.lineWidth = vm.borderWidth;
13489		var xAlign = vm.xAlign;
13490		var yAlign = vm.yAlign;
13491		var x = pt.x;
13492		var y = pt.y;
13493		var width = tooltipSize.width;
13494		var height = tooltipSize.height;
13495		var radius = vm.cornerRadius;
13496
13497		ctx.beginPath();
13498		ctx.moveTo(x + radius, y);
13499		if (yAlign === 'top') {
13500			this.drawCaret(pt, tooltipSize);
13501		}
13502		ctx.lineTo(x + width - radius, y);
13503		ctx.quadraticCurveTo(x + width, y, x + width, y + radius);
13504		if (yAlign === 'center' && xAlign === 'right') {
13505			this.drawCaret(pt, tooltipSize);
13506		}
13507		ctx.lineTo(x + width, y + height - radius);
13508		ctx.quadraticCurveTo(x + width, y + height, x + width - radius, y + height);
13509		if (yAlign === 'bottom') {
13510			this.drawCaret(pt, tooltipSize);
13511		}
13512		ctx.lineTo(x + radius, y + height);
13513		ctx.quadraticCurveTo(x, y + height, x, y + height - radius);
13514		if (yAlign === 'center' && xAlign === 'left') {
13515			this.drawCaret(pt, tooltipSize);
13516		}
13517		ctx.lineTo(x, y + radius);
13518		ctx.quadraticCurveTo(x, y, x + radius, y);
13519		ctx.closePath();
13520
13521		ctx.fill();
13522
13523		if (vm.borderWidth > 0) {
13524			ctx.stroke();
13525		}
13526	},
13527
13528	draw: function() {
13529		var ctx = this._chart.ctx;
13530		var vm = this._view;
13531
13532		if (vm.opacity === 0) {
13533			return;
13534		}
13535
13536		var tooltipSize = {
13537			width: vm.width,
13538			height: vm.height
13539		};
13540		var pt = {
13541			x: vm.x,
13542			y: vm.y
13543		};
13544
13545		// IE11/Edge does not like very small opacities, so snap to 0
13546		var opacity = Math.abs(vm.opacity < 1e-3) ? 0 : vm.opacity;
13547
13548		// Truthy/falsey value for empty tooltip
13549		var hasTooltipContent = vm.title.length || vm.beforeBody.length || vm.body.length || vm.afterBody.length || vm.footer.length;
13550
13551		if (this._options.enabled && hasTooltipContent) {
13552			// Draw Background
13553			this.drawBackground(pt, vm, ctx, tooltipSize, opacity);
13554
13555			// Draw Title, Body, and Footer
13556			pt.x += vm.xPadding;
13557			pt.y += vm.yPadding;
13558
13559			// Titles
13560			this.drawTitle(pt, vm, ctx, opacity);
13561
13562			// Body
13563			this.drawBody(pt, vm, ctx, opacity);
13564
13565			// Footer
13566			this.drawFooter(pt, vm, ctx, opacity);
13567		}
13568	},
13569
13570	/**
13571	 * Handle an event
13572	 * @private
13573	 * @param {IEvent} event - The event to handle
13574	 * @returns {Boolean} true if the tooltip changed
13575	 */
13576	handleEvent: function(e) {
13577		var me = this;
13578		var options = me._options;
13579		var changed = false;
13580
13581		me._lastActive = me._lastActive || [];
13582
13583		// Find Active Elements for tooltips
13584		if (e.type === 'mouseout') {
13585			me._active = [];
13586		} else {
13587			me._active = me._chart.getElementsAtEventForMode(e, options.mode, options);
13588		}
13589
13590		// Remember Last Actives
13591		changed = !helpers.arrayEquals(me._active, me._lastActive);
13592
13593		// Only handle target event on tooltip change
13594		if (changed) {
13595			me._lastActive = me._active;
13596
13597			if (options.enabled || options.custom) {
13598				me._eventPosition = {
13599					x: e.x,
13600					y: e.y
13601				};
13602
13603				me.update(true);
13604				me.pivot();
13605			}
13606		}
13607
13608		return changed;
13609	}
13610});
13611
13612/**
13613 * @namespace Chart.Tooltip.positioners
13614 */
13615exports.positioners = positioners;
13616
13617
13618},{"26":26,"27":27,"46":46}],37:[function(require,module,exports){
13619'use strict';
13620
13621var defaults = require(26);
13622var Element = require(27);
13623var helpers = require(46);
13624
13625defaults._set('global', {
13626	elements: {
13627		arc: {
13628			backgroundColor: defaults.global.defaultColor,
13629			borderColor: '#fff',
13630			borderWidth: 2
13631		}
13632	}
13633});
13634
13635module.exports = Element.extend({
13636	inLabelRange: function(mouseX) {
13637		var vm = this._view;
13638
13639		if (vm) {
13640			return (Math.pow(mouseX - vm.x, 2) < Math.pow(vm.radius + vm.hoverRadius, 2));
13641		}
13642		return false;
13643	},
13644
13645	inRange: function(chartX, chartY) {
13646		var vm = this._view;
13647
13648		if (vm) {
13649			var pointRelativePosition = helpers.getAngleFromPoint(vm, {x: chartX, y: chartY});
13650			var	angle = pointRelativePosition.angle;
13651			var distance = pointRelativePosition.distance;
13652
13653			// Sanitise angle range
13654			var startAngle = vm.startAngle;
13655			var endAngle = vm.endAngle;
13656			while (endAngle < startAngle) {
13657				endAngle += 2.0 * Math.PI;
13658			}
13659			while (angle > endAngle) {
13660				angle -= 2.0 * Math.PI;
13661			}
13662			while (angle < startAngle) {
13663				angle += 2.0 * Math.PI;
13664			}
13665
13666			// Check if within the range of the open/close angle
13667			var betweenAngles = (angle >= startAngle && angle <= endAngle);
13668			var withinRadius = (distance >= vm.innerRadius && distance <= vm.outerRadius);
13669
13670			return (betweenAngles && withinRadius);
13671		}
13672		return false;
13673	},
13674
13675	getCenterPoint: function() {
13676		var vm = this._view;
13677		var halfAngle = (vm.startAngle + vm.endAngle) / 2;
13678		var halfRadius = (vm.innerRadius + vm.outerRadius) / 2;
13679		return {
13680			x: vm.x + Math.cos(halfAngle) * halfRadius,
13681			y: vm.y + Math.sin(halfAngle) * halfRadius
13682		};
13683	},
13684
13685	getArea: function() {
13686		var vm = this._view;
13687		return Math.PI * ((vm.endAngle - vm.startAngle) / (2 * Math.PI)) * (Math.pow(vm.outerRadius, 2) - Math.pow(vm.innerRadius, 2));
13688	},
13689
13690	tooltipPosition: function() {
13691		var vm = this._view;
13692		var centreAngle = vm.startAngle + ((vm.endAngle - vm.startAngle) / 2);
13693		var rangeFromCentre = (vm.outerRadius - vm.innerRadius) / 2 + vm.innerRadius;
13694
13695		return {
13696			x: vm.x + (Math.cos(centreAngle) * rangeFromCentre),
13697			y: vm.y + (Math.sin(centreAngle) * rangeFromCentre)
13698		};
13699	},
13700
13701	draw: function() {
13702		var ctx = this._chart.ctx;
13703		var vm = this._view;
13704		var sA = vm.startAngle;
13705		var eA = vm.endAngle;
13706
13707		ctx.beginPath();
13708
13709		ctx.arc(vm.x, vm.y, vm.outerRadius, sA, eA);
13710		ctx.arc(vm.x, vm.y, vm.innerRadius, eA, sA, true);
13711
13712		ctx.closePath();
13713		ctx.strokeStyle = vm.borderColor;
13714		ctx.lineWidth = vm.borderWidth;
13715
13716		ctx.fillStyle = vm.backgroundColor;
13717
13718		ctx.fill();
13719		ctx.lineJoin = 'bevel';
13720
13721		if (vm.borderWidth) {
13722			ctx.stroke();
13723		}
13724	}
13725});
13726
13727},{"26":26,"27":27,"46":46}],38:[function(require,module,exports){
13728'use strict';
13729
13730var defaults = require(26);
13731var Element = require(27);
13732var helpers = require(46);
13733
13734var globalDefaults = defaults.global;
13735
13736defaults._set('global', {
13737	elements: {
13738		line: {
13739			tension: 0.4,
13740			backgroundColor: globalDefaults.defaultColor,
13741			borderWidth: 3,
13742			borderColor: globalDefaults.defaultColor,
13743			borderCapStyle: 'butt',
13744			borderDash: [],
13745			borderDashOffset: 0.0,
13746			borderJoinStyle: 'miter',
13747			capBezierPoints: true,
13748			fill: true, // do we fill in the area between the line and its base axis
13749		}
13750	}
13751});
13752
13753module.exports = Element.extend({
13754	draw: function() {
13755		var me = this;
13756		var vm = me._view;
13757		var ctx = me._chart.ctx;
13758		var spanGaps = vm.spanGaps;
13759		var points = me._children.slice(); // clone array
13760		var globalOptionLineElements = globalDefaults.elements.line;
13761		var lastDrawnIndex = -1;
13762		var index, current, previous, currentVM;
13763
13764		// If we are looping, adding the first point again
13765		if (me._loop && points.length) {
13766			points.push(points[0]);
13767		}
13768
13769		ctx.save();
13770
13771		// Stroke Line Options
13772		ctx.lineCap = vm.borderCapStyle || globalOptionLineElements.borderCapStyle;
13773
13774		// IE 9 and 10 do not support line dash
13775		if (ctx.setLineDash) {
13776			ctx.setLineDash(vm.borderDash || globalOptionLineElements.borderDash);
13777		}
13778
13779		ctx.lineDashOffset = vm.borderDashOffset || globalOptionLineElements.borderDashOffset;
13780		ctx.lineJoin = vm.borderJoinStyle || globalOptionLineElements.borderJoinStyle;
13781		ctx.lineWidth = vm.borderWidth || globalOptionLineElements.borderWidth;
13782		ctx.strokeStyle = vm.borderColor || globalDefaults.defaultColor;
13783
13784		// Stroke Line
13785		ctx.beginPath();
13786		lastDrawnIndex = -1;
13787
13788		for (index = 0; index < points.length; ++index) {
13789			current = points[index];
13790			previous = helpers.previousItem(points, index);
13791			currentVM = current._view;
13792
13793			// First point moves to it's starting position no matter what
13794			if (index === 0) {
13795				if (!currentVM.skip) {
13796					ctx.moveTo(currentVM.x, currentVM.y);
13797					lastDrawnIndex = index;
13798				}
13799			} else {
13800				previous = lastDrawnIndex === -1 ? previous : points[lastDrawnIndex];
13801
13802				if (!currentVM.skip) {
13803					if ((lastDrawnIndex !== (index - 1) && !spanGaps) || lastDrawnIndex === -1) {
13804						// There was a gap and this is the first point after the gap
13805						ctx.moveTo(currentVM.x, currentVM.y);
13806					} else {
13807						// Line to next point
13808						helpers.canvas.lineTo(ctx, previous._view, current._view);
13809					}
13810					lastDrawnIndex = index;
13811				}
13812			}
13813		}
13814
13815		ctx.stroke();
13816		ctx.restore();
13817	}
13818});
13819
13820},{"26":26,"27":27,"46":46}],39:[function(require,module,exports){
13821'use strict';
13822
13823var defaults = require(26);
13824var Element = require(27);
13825var helpers = require(46);
13826
13827var defaultColor = defaults.global.defaultColor;
13828
13829defaults._set('global', {
13830	elements: {
13831		point: {
13832			radius: 3,
13833			pointStyle: 'circle',
13834			backgroundColor: defaultColor,
13835			borderColor: defaultColor,
13836			borderWidth: 1,
13837			// Hover
13838			hitRadius: 1,
13839			hoverRadius: 4,
13840			hoverBorderWidth: 1
13841		}
13842	}
13843});
13844
13845function xRange(mouseX) {
13846	var vm = this._view;
13847	return vm ? (Math.abs(mouseX - vm.x) < vm.radius + vm.hitRadius) : false;
13848}
13849
13850function yRange(mouseY) {
13851	var vm = this._view;
13852	return vm ? (Math.abs(mouseY - vm.y) < vm.radius + vm.hitRadius) : false;
13853}
13854
13855module.exports = Element.extend({
13856	inRange: function(mouseX, mouseY) {
13857		var vm = this._view;
13858		return vm ? ((Math.pow(mouseX - vm.x, 2) + Math.pow(mouseY - vm.y, 2)) < Math.pow(vm.hitRadius + vm.radius, 2)) : false;
13859	},
13860
13861	inLabelRange: xRange,
13862	inXRange: xRange,
13863	inYRange: yRange,
13864
13865	getCenterPoint: function() {
13866		var vm = this._view;
13867		return {
13868			x: vm.x,
13869			y: vm.y
13870		};
13871	},
13872
13873	getArea: function() {
13874		return Math.PI * Math.pow(this._view.radius, 2);
13875	},
13876
13877	tooltipPosition: function() {
13878		var vm = this._view;
13879		return {
13880			x: vm.x,
13881			y: vm.y,
13882			padding: vm.radius + vm.borderWidth
13883		};
13884	},
13885
13886	draw: function(chartArea) {
13887		var vm = this._view;
13888		var model = this._model;
13889		var ctx = this._chart.ctx;
13890		var pointStyle = vm.pointStyle;
13891		var rotation = vm.rotation;
13892		var radius = vm.radius;
13893		var x = vm.x;
13894		var y = vm.y;
13895		var errMargin = 1.01; // 1.01 is margin for Accumulated error. (Especially Edge, IE.)
13896
13897		if (vm.skip) {
13898			return;
13899		}
13900
13901		// Clipping for Points.
13902		if (chartArea === undefined || (model.x >= chartArea.left && chartArea.right * errMargin >= model.x && model.y >= chartArea.top && chartArea.bottom * errMargin >= model.y)) {
13903			ctx.strokeStyle = vm.borderColor || defaultColor;
13904			ctx.lineWidth = helpers.valueOrDefault(vm.borderWidth, defaults.global.elements.point.borderWidth);
13905			ctx.fillStyle = vm.backgroundColor || defaultColor;
13906			helpers.canvas.drawPoint(ctx, pointStyle, radius, x, y, rotation);
13907		}
13908	}
13909});
13910
13911},{"26":26,"27":27,"46":46}],40:[function(require,module,exports){
13912'use strict';
13913
13914var defaults = require(26);
13915var Element = require(27);
13916
13917defaults._set('global', {
13918	elements: {
13919		rectangle: {
13920			backgroundColor: defaults.global.defaultColor,
13921			borderColor: defaults.global.defaultColor,
13922			borderSkipped: 'bottom',
13923			borderWidth: 0
13924		}
13925	}
13926});
13927
13928function isVertical(bar) {
13929	return bar._view.width !== undefined;
13930}
13931
13932/**
13933 * Helper function to get the bounds of the bar regardless of the orientation
13934 * @param bar {Chart.Element.Rectangle} the bar
13935 * @return {Bounds} bounds of the bar
13936 * @private
13937 */
13938function getBarBounds(bar) {
13939	var vm = bar._view;
13940	var x1, x2, y1, y2;
13941
13942	if (isVertical(bar)) {
13943		// vertical
13944		var halfWidth = vm.width / 2;
13945		x1 = vm.x - halfWidth;
13946		x2 = vm.x + halfWidth;
13947		y1 = Math.min(vm.y, vm.base);
13948		y2 = Math.max(vm.y, vm.base);
13949	} else {
13950		// horizontal bar
13951		var halfHeight = vm.height / 2;
13952		x1 = Math.min(vm.x, vm.base);
13953		x2 = Math.max(vm.x, vm.base);
13954		y1 = vm.y - halfHeight;
13955		y2 = vm.y + halfHeight;
13956	}
13957
13958	return {
13959		left: x1,
13960		top: y1,
13961		right: x2,
13962		bottom: y2
13963	};
13964}
13965
13966module.exports = Element.extend({
13967	draw: function() {
13968		var ctx = this._chart.ctx;
13969		var vm = this._view;
13970		var left, right, top, bottom, signX, signY, borderSkipped;
13971		var borderWidth = vm.borderWidth;
13972
13973		if (!vm.horizontal) {
13974			// bar
13975			left = vm.x - vm.width / 2;
13976			right = vm.x + vm.width / 2;
13977			top = vm.y;
13978			bottom = vm.base;
13979			signX = 1;
13980			signY = bottom > top ? 1 : -1;
13981			borderSkipped = vm.borderSkipped || 'bottom';
13982		} else {
13983			// horizontal bar
13984			left = vm.base;
13985			right = vm.x;
13986			top = vm.y - vm.height / 2;
13987			bottom = vm.y + vm.height / 2;
13988			signX = right > left ? 1 : -1;
13989			signY = 1;
13990			borderSkipped = vm.borderSkipped || 'left';
13991		}
13992
13993		// Canvas doesn't allow us to stroke inside the width so we can
13994		// adjust the sizes to fit if we're setting a stroke on the line
13995		if (borderWidth) {
13996			// borderWidth shold be less than bar width and bar height.
13997			var barSize = Math.min(Math.abs(left - right), Math.abs(top - bottom));
13998			borderWidth = borderWidth > barSize ? barSize : borderWidth;
13999			var halfStroke = borderWidth / 2;
14000			// Adjust borderWidth when bar top position is near vm.base(zero).
14001			var borderLeft = left + (borderSkipped !== 'left' ? halfStroke * signX : 0);
14002			var borderRight = right + (borderSkipped !== 'right' ? -halfStroke * signX : 0);
14003			var borderTop = top + (borderSkipped !== 'top' ? halfStroke * signY : 0);
14004			var borderBottom = bottom + (borderSkipped !== 'bottom' ? -halfStroke * signY : 0);
14005			// not become a vertical line?
14006			if (borderLeft !== borderRight) {
14007				top = borderTop;
14008				bottom = borderBottom;
14009			}
14010			// not become a horizontal line?
14011			if (borderTop !== borderBottom) {
14012				left = borderLeft;
14013				right = borderRight;
14014			}
14015		}
14016
14017		ctx.beginPath();
14018		ctx.fillStyle = vm.backgroundColor;
14019		ctx.strokeStyle = vm.borderColor;
14020		ctx.lineWidth = borderWidth;
14021
14022		// Corner points, from bottom-left to bottom-right clockwise
14023		// | 1 2 |
14024		// | 0 3 |
14025		var corners = [
14026			[left, bottom],
14027			[left, top],
14028			[right, top],
14029			[right, bottom]
14030		];
14031
14032		// Find first (starting) corner with fallback to 'bottom'
14033		var borders = ['bottom', 'left', 'top', 'right'];
14034		var startCorner = borders.indexOf(borderSkipped, 0);
14035		if (startCorner === -1) {
14036			startCorner = 0;
14037		}
14038
14039		function cornerAt(index) {
14040			return corners[(startCorner + index) % 4];
14041		}
14042
14043		// Draw rectangle from 'startCorner'
14044		var corner = cornerAt(0);
14045		ctx.moveTo(corner[0], corner[1]);
14046
14047		for (var i = 1; i < 4; i++) {
14048			corner = cornerAt(i);
14049			ctx.lineTo(corner[0], corner[1]);
14050		}
14051
14052		ctx.fill();
14053		if (borderWidth) {
14054			ctx.stroke();
14055		}
14056	},
14057
14058	height: function() {
14059		var vm = this._view;
14060		return vm.base - vm.y;
14061	},
14062
14063	inRange: function(mouseX, mouseY) {
14064		var inRange = false;
14065
14066		if (this._view) {
14067			var bounds = getBarBounds(this);
14068			inRange = mouseX >= bounds.left && mouseX <= bounds.right && mouseY >= bounds.top && mouseY <= bounds.bottom;
14069		}
14070
14071		return inRange;
14072	},
14073
14074	inLabelRange: function(mouseX, mouseY) {
14075		var me = this;
14076		if (!me._view) {
14077			return false;
14078		}
14079
14080		var inRange = false;
14081		var bounds = getBarBounds(me);
14082
14083		if (isVertical(me)) {
14084			inRange = mouseX >= bounds.left && mouseX <= bounds.right;
14085		} else {
14086			inRange = mouseY >= bounds.top && mouseY <= bounds.bottom;
14087		}
14088
14089		return inRange;
14090	},
14091
14092	inXRange: function(mouseX) {
14093		var bounds = getBarBounds(this);
14094		return mouseX >= bounds.left && mouseX <= bounds.right;
14095	},
14096
14097	inYRange: function(mouseY) {
14098		var bounds = getBarBounds(this);
14099		return mouseY >= bounds.top && mouseY <= bounds.bottom;
14100	},
14101
14102	getCenterPoint: function() {
14103		var vm = this._view;
14104		var x, y;
14105		if (isVertical(this)) {
14106			x = vm.x;
14107			y = (vm.y + vm.base) / 2;
14108		} else {
14109			x = (vm.x + vm.base) / 2;
14110			y = vm.y;
14111		}
14112
14113		return {x: x, y: y};
14114	},
14115
14116	getArea: function() {
14117		var vm = this._view;
14118		return vm.width * Math.abs(vm.y - vm.base);
14119	},
14120
14121	tooltipPosition: function() {
14122		var vm = this._view;
14123		return {
14124			x: vm.x,
14125			y: vm.y
14126		};
14127	}
14128});
14129
14130},{"26":26,"27":27}],41:[function(require,module,exports){
14131'use strict';
14132
14133module.exports = {};
14134module.exports.Arc = require(37);
14135module.exports.Line = require(38);
14136module.exports.Point = require(39);
14137module.exports.Rectangle = require(40);
14138
14139},{"37":37,"38":38,"39":39,"40":40}],42:[function(require,module,exports){
14140'use strict';
14141
14142var helpers = require(43);
14143
14144/**
14145 * @namespace Chart.helpers.canvas
14146 */
14147var exports = module.exports = {
14148	/**
14149	 * Clears the entire canvas associated to the given `chart`.
14150	 * @param {Chart} chart - The chart for which to clear the canvas.
14151	 */
14152	clear: function(chart) {
14153		chart.ctx.clearRect(0, 0, chart.width, chart.height);
14154	},
14155
14156	/**
14157	 * Creates a "path" for a rectangle with rounded corners at position (x, y) with a
14158	 * given size (width, height) and the same `radius` for all corners.
14159	 * @param {CanvasRenderingContext2D} ctx - The canvas 2D Context.
14160	 * @param {Number} x - The x axis of the coordinate for the rectangle starting point.
14161	 * @param {Number} y - The y axis of the coordinate for the rectangle starting point.
14162	 * @param {Number} width - The rectangle's width.
14163	 * @param {Number} height - The rectangle's height.
14164	 * @param {Number} radius - The rounded amount (in pixels) for the four corners.
14165	 * @todo handle `radius` as top-left, top-right, bottom-right, bottom-left array/object?
14166	 */
14167	roundedRect: function(ctx, x, y, width, height, radius) {
14168		if (radius) {
14169			// NOTE(SB) `epsilon` helps to prevent minor artifacts appearing
14170			// on Chrome when `r` is exactly half the height or the width.
14171			var epsilon = 0.0000001;
14172			var r = Math.min(radius, (height / 2) - epsilon, (width / 2) - epsilon);
14173
14174			ctx.moveTo(x + r, y);
14175			ctx.lineTo(x + width - r, y);
14176			ctx.arcTo(x + width, y, x + width, y + r, r);
14177			ctx.lineTo(x + width, y + height - r);
14178			ctx.arcTo(x + width, y + height, x + width - r, y + height, r);
14179			ctx.lineTo(x + r, y + height);
14180			ctx.arcTo(x, y + height, x, y + height - r, r);
14181			ctx.lineTo(x, y + r);
14182			ctx.arcTo(x, y, x + r, y, r);
14183			ctx.closePath();
14184			ctx.moveTo(x, y);
14185		} else {
14186			ctx.rect(x, y, width, height);
14187		}
14188	},
14189
14190	drawPoint: function(ctx, style, radius, x, y, rotation) {
14191		var type, edgeLength, xOffset, yOffset, height, size;
14192		rotation = rotation || 0;
14193
14194		if (style && typeof style === 'object') {
14195			type = style.toString();
14196			if (type === '[object HTMLImageElement]' || type === '[object HTMLCanvasElement]') {
14197				ctx.drawImage(style, x - style.width / 2, y - style.height / 2, style.width, style.height);
14198				return;
14199			}
14200		}
14201
14202		if (isNaN(radius) || radius <= 0) {
14203			return;
14204		}
14205
14206		ctx.save();
14207		ctx.translate(x, y);
14208		ctx.rotate(rotation * Math.PI / 180);
14209		ctx.beginPath();
14210
14211		switch (style) {
14212		// Default includes circle
14213		default:
14214			ctx.arc(0, 0, radius, 0, Math.PI * 2);
14215			ctx.closePath();
14216			break;
14217		case 'triangle':
14218			edgeLength = 3 * radius / Math.sqrt(3);
14219			height = edgeLength * Math.sqrt(3) / 2;
14220			ctx.moveTo(-edgeLength / 2, height / 3);
14221			ctx.lineTo(edgeLength / 2, height / 3);
14222			ctx.lineTo(0, -2 * height / 3);
14223			ctx.closePath();
14224			break;
14225		case 'rect':
14226			size = 1 / Math.SQRT2 * radius;
14227			ctx.rect(-size, -size, 2 * size, 2 * size);
14228			break;
14229		case 'rectRounded':
14230			var offset = radius / Math.SQRT2;
14231			var leftX = -offset;
14232			var topY = -offset;
14233			var sideSize = Math.SQRT2 * radius;
14234
14235			// NOTE(SB) the rounded rect implementation changed to use `arcTo`
14236			// instead of `quadraticCurveTo` since it generates better results
14237			// when rect is almost a circle. 0.425 (instead of 0.5) produces
14238			// results visually closer to the previous impl.
14239			this.roundedRect(ctx, leftX, topY, sideSize, sideSize, radius * 0.425);
14240			break;
14241		case 'rectRot':
14242			size = 1 / Math.SQRT2 * radius;
14243			ctx.moveTo(-size, 0);
14244			ctx.lineTo(0, size);
14245			ctx.lineTo(size, 0);
14246			ctx.lineTo(0, -size);
14247			ctx.closePath();
14248			break;
14249		case 'cross':
14250			ctx.moveTo(0, radius);
14251			ctx.lineTo(0, -radius);
14252			ctx.moveTo(-radius, 0);
14253			ctx.lineTo(radius, 0);
14254			break;
14255		case 'crossRot':
14256			xOffset = Math.cos(Math.PI / 4) * radius;
14257			yOffset = Math.sin(Math.PI / 4) * radius;
14258			ctx.moveTo(-xOffset, -yOffset);
14259			ctx.lineTo(xOffset, yOffset);
14260			ctx.moveTo(-xOffset, yOffset);
14261			ctx.lineTo(xOffset, -yOffset);
14262			break;
14263		case 'star':
14264			ctx.moveTo(0, radius);
14265			ctx.lineTo(0, -radius);
14266			ctx.moveTo(-radius, 0);
14267			ctx.lineTo(radius, 0);
14268			xOffset = Math.cos(Math.PI / 4) * radius;
14269			yOffset = Math.sin(Math.PI / 4) * radius;
14270			ctx.moveTo(-xOffset, -yOffset);
14271			ctx.lineTo(xOffset, yOffset);
14272			ctx.moveTo(-xOffset, yOffset);
14273			ctx.lineTo(xOffset, -yOffset);
14274			break;
14275		case 'line':
14276			ctx.moveTo(-radius, 0);
14277			ctx.lineTo(radius, 0);
14278			break;
14279		case 'dash':
14280			ctx.moveTo(0, 0);
14281			ctx.lineTo(radius, 0);
14282			break;
14283		}
14284
14285		ctx.fill();
14286		ctx.stroke();
14287		ctx.restore();
14288	},
14289
14290	clipArea: function(ctx, area) {
14291		ctx.save();
14292		ctx.beginPath();
14293		ctx.rect(area.left, area.top, area.right - area.left, area.bottom - area.top);
14294		ctx.clip();
14295	},
14296
14297	unclipArea: function(ctx) {
14298		ctx.restore();
14299	},
14300
14301	lineTo: function(ctx, previous, target, flip) {
14302		if (target.steppedLine) {
14303			if ((target.steppedLine === 'after' && !flip) || (target.steppedLine !== 'after' && flip)) {
14304				ctx.lineTo(previous.x, target.y);
14305			} else {
14306				ctx.lineTo(target.x, previous.y);
14307			}
14308			ctx.lineTo(target.x, target.y);
14309			return;
14310		}
14311
14312		if (!target.tension) {
14313			ctx.lineTo(target.x, target.y);
14314			return;
14315		}
14316
14317		ctx.bezierCurveTo(
14318			flip ? previous.controlPointPreviousX : previous.controlPointNextX,
14319			flip ? previous.controlPointPreviousY : previous.controlPointNextY,
14320			flip ? target.controlPointNextX : target.controlPointPreviousX,
14321			flip ? target.controlPointNextY : target.controlPointPreviousY,
14322			target.x,
14323			target.y);
14324	}
14325};
14326
14327// DEPRECATIONS
14328
14329/**
14330 * Provided for backward compatibility, use Chart.helpers.canvas.clear instead.
14331 * @namespace Chart.helpers.clear
14332 * @deprecated since version 2.7.0
14333 * @todo remove at version 3
14334 * @private
14335 */
14336helpers.clear = exports.clear;
14337
14338/**
14339 * Provided for backward compatibility, use Chart.helpers.canvas.roundedRect instead.
14340 * @namespace Chart.helpers.drawRoundedRectangle
14341 * @deprecated since version 2.7.0
14342 * @todo remove at version 3
14343 * @private
14344 */
14345helpers.drawRoundedRectangle = function(ctx) {
14346	ctx.beginPath();
14347	exports.roundedRect.apply(exports, arguments);
14348};
14349
14350},{"43":43}],43:[function(require,module,exports){
14351'use strict';
14352
14353/**
14354 * @namespace Chart.helpers
14355 */
14356var helpers = {
14357	/**
14358	 * An empty function that can be used, for example, for optional callback.
14359	 */
14360	noop: function() {},
14361
14362	/**
14363	 * Returns a unique id, sequentially generated from a global variable.
14364	 * @returns {Number}
14365	 * @function
14366	 */
14367	uid: (function() {
14368		var id = 0;
14369		return function() {
14370			return id++;
14371		};
14372	}()),
14373
14374	/**
14375	 * Returns true if `value` is neither null nor undefined, else returns false.
14376	 * @param {*} value - The value to test.
14377	 * @returns {Boolean}
14378	 * @since 2.7.0
14379	 */
14380	isNullOrUndef: function(value) {
14381		return value === null || typeof value === 'undefined';
14382	},
14383
14384	/**
14385	 * Returns true if `value` is an array, else returns false.
14386	 * @param {*} value - The value to test.
14387	 * @returns {Boolean}
14388	 * @function
14389	 */
14390	isArray: Array.isArray ? Array.isArray : function(value) {
14391		return Object.prototype.toString.call(value) === '[object Array]';
14392	},
14393
14394	/**
14395	 * Returns true if `value` is an object (excluding null), else returns false.
14396	 * @param {*} value - The value to test.
14397	 * @returns {Boolean}
14398	 * @since 2.7.0
14399	 */
14400	isObject: function(value) {
14401		return value !== null && Object.prototype.toString.call(value) === '[object Object]';
14402	},
14403
14404	/**
14405	 * Returns `value` if defined, else returns `defaultValue`.
14406	 * @param {*} value - The value to return if defined.
14407	 * @param {*} defaultValue - The value to return if `value` is undefined.
14408	 * @returns {*}
14409	 */
14410	valueOrDefault: function(value, defaultValue) {
14411		return typeof value === 'undefined' ? defaultValue : value;
14412	},
14413
14414	/**
14415	 * Returns value at the given `index` in array if defined, else returns `defaultValue`.
14416	 * @param {Array} value - The array to lookup for value at `index`.
14417	 * @param {Number} index - The index in `value` to lookup for value.
14418	 * @param {*} defaultValue - The value to return if `value[index]` is undefined.
14419	 * @returns {*}
14420	 */
14421	valueAtIndexOrDefault: function(value, index, defaultValue) {
14422		return helpers.valueOrDefault(helpers.isArray(value) ? value[index] : value, defaultValue);
14423	},
14424
14425	/**
14426	 * Calls `fn` with the given `args` in the scope defined by `thisArg` and returns the
14427	 * value returned by `fn`. If `fn` is not a function, this method returns undefined.
14428	 * @param {Function} fn - The function to call.
14429	 * @param {Array|undefined|null} args - The arguments with which `fn` should be called.
14430	 * @param {Object} [thisArg] - The value of `this` provided for the call to `fn`.
14431	 * @returns {*}
14432	 */
14433	callback: function(fn, args, thisArg) {
14434		if (fn && typeof fn.call === 'function') {
14435			return fn.apply(thisArg, args);
14436		}
14437	},
14438
14439	/**
14440	 * Note(SB) for performance sake, this method should only be used when loopable type
14441	 * is unknown or in none intensive code (not called often and small loopable). Else
14442	 * it's preferable to use a regular for() loop and save extra function calls.
14443	 * @param {Object|Array} loopable - The object or array to be iterated.
14444	 * @param {Function} fn - The function to call for each item.
14445	 * @param {Object} [thisArg] - The value of `this` provided for the call to `fn`.
14446	 * @param {Boolean} [reverse] - If true, iterates backward on the loopable.
14447	 */
14448	each: function(loopable, fn, thisArg, reverse) {
14449		var i, len, keys;
14450		if (helpers.isArray(loopable)) {
14451			len = loopable.length;
14452			if (reverse) {
14453				for (i = len - 1; i >= 0; i--) {
14454					fn.call(thisArg, loopable[i], i);
14455				}
14456			} else {
14457				for (i = 0; i < len; i++) {
14458					fn.call(thisArg, loopable[i], i);
14459				}
14460			}
14461		} else if (helpers.isObject(loopable)) {
14462			keys = Object.keys(loopable);
14463			len = keys.length;
14464			for (i = 0; i < len; i++) {
14465				fn.call(thisArg, loopable[keys[i]], keys[i]);
14466			}
14467		}
14468	},
14469
14470	/**
14471	 * Returns true if the `a0` and `a1` arrays have the same content, else returns false.
14472	 * @see http://stackoverflow.com/a/14853974
14473	 * @param {Array} a0 - The array to compare
14474	 * @param {Array} a1 - The array to compare
14475	 * @returns {Boolean}
14476	 */
14477	arrayEquals: function(a0, a1) {
14478		var i, ilen, v0, v1;
14479
14480		if (!a0 || !a1 || a0.length !== a1.length) {
14481			return false;
vendor: 10,367 bytes, lines 14482-14935
14482		}
14483
14484		for (i = 0, ilen = a0.length; i < ilen; ++i) {
14485			v0 = a0[i];
14486			v1 = a1[i];
14487
14488			if (v0 instanceof Array && v1 instanceof Array) {
14489				if (!helpers.arrayEquals(v0, v1)) {
14490					return false;
14491				}
14492			} else if (v0 !== v1) {
14493				// NOTE: two different object instances will never be equal: {x:20} != {x:20}
14494				return false;
14495			}
14496		}
14497
14498		return true;
14499	},
14500
14501	/**
14502	 * Returns a deep copy of `source` without keeping references on objects and arrays.
14503	 * @param {*} source - The value to clone.
14504	 * @returns {*}
14505	 */
14506	clone: function(source) {
14507		if (helpers.isArray(source)) {
14508			return source.map(helpers.clone);
14509		}
14510
14511		if (helpers.isObject(source)) {
14512			var target = {};
14513			var keys = Object.keys(source);
14514			var klen = keys.length;
14515			var k = 0;
14516
14517			for (; k < klen; ++k) {
14518				target[keys[k]] = helpers.clone(source[keys[k]]);
14519			}
14520
14521			return target;
14522		}
14523
14524		return source;
14525	},
14526
14527	/**
14528	 * The default merger when Chart.helpers.merge is called without merger option.
14529	 * Note(SB): this method is also used by configMerge and scaleMerge as fallback.
14530	 * @private
14531	 */
14532	_merger: function(key, target, source, options) {
14533		var tval = target[key];
14534		var sval = source[key];
14535
14536		if (helpers.isObject(tval) && helpers.isObject(sval)) {
14537			helpers.merge(tval, sval, options);
14538		} else {
14539			target[key] = helpers.clone(sval);
14540		}
14541	},
14542
14543	/**
14544	 * Merges source[key] in target[key] only if target[key] is undefined.
14545	 * @private
14546	 */
14547	_mergerIf: function(key, target, source) {
14548		var tval = target[key];
14549		var sval = source[key];
14550
14551		if (helpers.isObject(tval) && helpers.isObject(sval)) {
14552			helpers.mergeIf(tval, sval);
14553		} else if (!target.hasOwnProperty(key)) {
14554			target[key] = helpers.clone(sval);
14555		}
14556	},
14557
14558	/**
14559	 * Recursively deep copies `source` properties into `target` with the given `options`.
14560	 * IMPORTANT: `target` is not cloned and will be updated with `source` properties.
14561	 * @param {Object} target - The target object in which all sources are merged into.
14562	 * @param {Object|Array(Object)} source - Object(s) to merge into `target`.
14563	 * @param {Object} [options] - Merging options:
14564	 * @param {Function} [options.merger] - The merge method (key, target, source, options)
14565	 * @returns {Object} The `target` object.
14566	 */
14567	merge: function(target, source, options) {
14568		var sources = helpers.isArray(source) ? source : [source];
14569		var ilen = sources.length;
14570		var merge, i, keys, klen, k;
14571
14572		if (!helpers.isObject(target)) {
14573			return target;
14574		}
14575
14576		options = options || {};
14577		merge = options.merger || helpers._merger;
14578
14579		for (i = 0; i < ilen; ++i) {
14580			source = sources[i];
14581			if (!helpers.isObject(source)) {
14582				continue;
14583			}
14584
14585			keys = Object.keys(source);
14586			for (k = 0, klen = keys.length; k < klen; ++k) {
14587				merge(keys[k], target, source, options);
14588			}
14589		}
14590
14591		return target;
14592	},
14593
14594	/**
14595	 * Recursively deep copies `source` properties into `target` *only* if not defined in target.
14596	 * IMPORTANT: `target` is not cloned and will be updated with `source` properties.
14597	 * @param {Object} target - The target object in which all sources are merged into.
14598	 * @param {Object|Array(Object)} source - Object(s) to merge into `target`.
14599	 * @returns {Object} The `target` object.
14600	 */
14601	mergeIf: function(target, source) {
14602		return helpers.merge(target, source, {merger: helpers._mergerIf});
14603	},
14604
14605	/**
14606	 * Applies the contents of two or more objects together into the first object.
14607	 * @param {Object} target - The target object in which all objects are merged into.
14608	 * @param {Object} arg1 - Object containing additional properties to merge in target.
14609	 * @param {Object} argN - Additional objects containing properties to merge in target.
14610	 * @returns {Object} The `target` object.
14611	 */
14612	extend: function(target) {
14613		var setFn = function(value, key) {
14614			target[key] = value;
14615		};
14616		for (var i = 1, ilen = arguments.length; i < ilen; ++i) {
14617			helpers.each(arguments[i], setFn);
14618		}
14619		return target;
14620	},
14621
14622	/**
14623	 * Basic javascript inheritance based on the model created in Backbone.js
14624	 */
14625	inherits: function(extensions) {
14626		var me = this;
14627		var ChartElement = (extensions && extensions.hasOwnProperty('constructor')) ? extensions.constructor : function() {
14628			return me.apply(this, arguments);
14629		};
14630
14631		var Surrogate = function() {
14632			this.constructor = ChartElement;
14633		};
14634
14635		Surrogate.prototype = me.prototype;
14636		ChartElement.prototype = new Surrogate();
14637		ChartElement.extend = helpers.inherits;
14638
14639		if (extensions) {
14640			helpers.extend(ChartElement.prototype, extensions);
14641		}
14642
14643		ChartElement.__super__ = me.prototype;
14644		return ChartElement;
14645	}
14646};
14647
14648module.exports = helpers;
14649
14650// DEPRECATIONS
14651
14652/**
14653 * Provided for backward compatibility, use Chart.helpers.callback instead.
14654 * @function Chart.helpers.callCallback
14655 * @deprecated since version 2.6.0
14656 * @todo remove at version 3
14657 * @private
14658 */
14659helpers.callCallback = helpers.callback;
14660
14661/**
14662 * Provided for backward compatibility, use Array.prototype.indexOf instead.
14663 * Array.prototype.indexOf compatibility: Chrome, Opera, Safari, FF1.5+, IE9+
14664 * @function Chart.helpers.indexOf
14665 * @deprecated since version 2.7.0
14666 * @todo remove at version 3
14667 * @private
14668 */
14669helpers.indexOf = function(array, item, fromIndex) {
14670	return Array.prototype.indexOf.call(array, item, fromIndex);
14671};
14672
14673/**
14674 * Provided for backward compatibility, use Chart.helpers.valueOrDefault instead.
14675 * @function Chart.helpers.getValueOrDefault
14676 * @deprecated since version 2.7.0
14677 * @todo remove at version 3
14678 * @private
14679 */
14680helpers.getValueOrDefault = helpers.valueOrDefault;
14681
14682/**
14683 * Provided for backward compatibility, use Chart.helpers.valueAtIndexOrDefault instead.
14684 * @function Chart.helpers.getValueAtIndexOrDefault
14685 * @deprecated since version 2.7.0
14686 * @todo remove at version 3
14687 * @private
14688 */
14689helpers.getValueAtIndexOrDefault = helpers.valueAtIndexOrDefault;
14690
14691},{}],44:[function(require,module,exports){
14692'use strict';
14693
14694var helpers = require(43);
14695
14696/**
14697 * Easing functions adapted from Robert Penner's easing equations.
14698 * @namespace Chart.helpers.easingEffects
14699 * @see http://www.robertpenner.com/easing/
14700 */
14701var effects = {
14702	linear: function(t) {
14703		return t;
14704	},
14705
14706	easeInQuad: function(t) {
14707		return t * t;
14708	},
14709
14710	easeOutQuad: function(t) {
14711		return -t * (t - 2);
14712	},
14713
14714	easeInOutQuad: function(t) {
14715		if ((t /= 0.5) < 1) {
14716			return 0.5 * t * t;
14717		}
14718		return -0.5 * ((--t) * (t - 2) - 1);
14719	},
14720
14721	easeInCubic: function(t) {
14722		return t * t * t;
14723	},
14724
14725	easeOutCubic: function(t) {
14726		return (t = t - 1) * t * t + 1;
14727	},
14728
14729	easeInOutCubic: function(t) {
14730		if ((t /= 0.5) < 1) {
14731			return 0.5 * t * t * t;
14732		}
14733		return 0.5 * ((t -= 2) * t * t + 2);
14734	},
14735
14736	easeInQuart: function(t) {
14737		return t * t * t * t;
14738	},
14739
14740	easeOutQuart: function(t) {
14741		return -((t = t - 1) * t * t * t - 1);
14742	},
14743
14744	easeInOutQuart: function(t) {
14745		if ((t /= 0.5) < 1) {
14746			return 0.5 * t * t * t * t;
14747		}
14748		return -0.5 * ((t -= 2) * t * t * t - 2);
14749	},
14750
14751	easeInQuint: function(t) {
14752		return t * t * t * t * t;
14753	},
14754
14755	easeOutQuint: function(t) {
14756		return (t = t - 1) * t * t * t * t + 1;
14757	},
14758
14759	easeInOutQuint: function(t) {
14760		if ((t /= 0.5) < 1) {
14761			return 0.5 * t * t * t * t * t;
14762		}
14763		return 0.5 * ((t -= 2) * t * t * t * t + 2);
14764	},
14765
14766	easeInSine: function(t) {
14767		return -Math.cos(t * (Math.PI / 2)) + 1;
14768	},
14769
14770	easeOutSine: function(t) {
14771		return Math.sin(t * (Math.PI / 2));
14772	},
14773
14774	easeInOutSine: function(t) {
14775		return -0.5 * (Math.cos(Math.PI * t) - 1);
14776	},
14777
14778	easeInExpo: function(t) {
14779		return (t === 0) ? 0 : Math.pow(2, 10 * (t - 1));
14780	},
14781
14782	easeOutExpo: function(t) {
14783		return (t === 1) ? 1 : -Math.pow(2, -10 * t) + 1;
14784	},
14785
14786	easeInOutExpo: function(t) {
14787		if (t === 0) {
14788			return 0;
14789		}
14790		if (t === 1) {
14791			return 1;
14792		}
14793		if ((t /= 0.5) < 1) {
14794			return 0.5 * Math.pow(2, 10 * (t - 1));
14795		}
14796		return 0.5 * (-Math.pow(2, -10 * --t) + 2);
14797	},
14798
14799	easeInCirc: function(t) {
14800		if (t >= 1) {
14801			return t;
14802		}
14803		return -(Math.sqrt(1 - t * t) - 1);
14804	},
14805
14806	easeOutCirc: function(t) {
14807		return Math.sqrt(1 - (t = t - 1) * t);
14808	},
14809
14810	easeInOutCirc: function(t) {
14811		if ((t /= 0.5) < 1) {
14812			return -0.5 * (Math.sqrt(1 - t * t) - 1);
14813		}
14814		return 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1);
14815	},
14816
14817	easeInElastic: function(t) {
14818		var s = 1.70158;
14819		var p = 0;
14820		var a = 1;
14821		if (t === 0) {
14822			return 0;
14823		}
14824		if (t === 1) {
14825			return 1;
14826		}
14827		if (!p) {
14828			p = 0.3;
14829		}
14830		if (a < 1) {
14831			a = 1;
14832			s = p / 4;
14833		} else {
14834			s = p / (2 * Math.PI) * Math.asin(1 / a);
14835		}
14836		return -(a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p));
14837	},
14838
14839	easeOutElastic: function(t) {
14840		var s = 1.70158;
14841		var p = 0;
14842		var a = 1;
14843		if (t === 0) {
14844			return 0;
14845		}
14846		if (t === 1) {
14847			return 1;
14848		}
14849		if (!p) {
14850			p = 0.3;
14851		}
14852		if (a < 1) {
14853			a = 1;
14854			s = p / 4;
14855		} else {
14856			s = p / (2 * Math.PI) * Math.asin(1 / a);
14857		}
14858		return a * Math.pow(2, -10 * t) * Math.sin((t - s) * (2 * Math.PI) / p) + 1;
14859	},
14860
14861	easeInOutElastic: function(t) {
14862		var s = 1.70158;
14863		var p = 0;
14864		var a = 1;
14865		if (t === 0) {
14866			return 0;
14867		}
14868		if ((t /= 0.5) === 2) {
14869			return 1;
14870		}
14871		if (!p) {
14872			p = 0.45;
14873		}
14874		if (a < 1) {
14875			a = 1;
14876			s = p / 4;
14877		} else {
14878			s = p / (2 * Math.PI) * Math.asin(1 / a);
14879		}
14880		if (t < 1) {
14881			return -0.5 * (a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p));
14882		}
14883		return a * Math.pow(2, -10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p) * 0.5 + 1;
14884	},
14885	easeInBack: function(t) {
14886		var s = 1.70158;
14887		return t * t * ((s + 1) * t - s);
14888	},
14889
14890	easeOutBack: function(t) {
14891		var s = 1.70158;
14892		return (t = t - 1) * t * ((s + 1) * t + s) + 1;
14893	},
14894
14895	easeInOutBack: function(t) {
14896		var s = 1.70158;
14897		if ((t /= 0.5) < 1) {
14898			return 0.5 * (t * t * (((s *= (1.525)) + 1) * t - s));
14899		}
14900		return 0.5 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2);
14901	},
14902
14903	easeInBounce: function(t) {
14904		return 1 - effects.easeOutBounce(1 - t);
14905	},
14906
14907	easeOutBounce: function(t) {
14908		if (t < (1 / 2.75)) {
14909			return 7.5625 * t * t;
14910		}
14911		if (t < (2 / 2.75)) {
14912			return 7.5625 * (t -= (1.5 / 2.75)) * t + 0.75;
14913		}
14914		if (t < (2.5 / 2.75)) {
14915			return 7.5625 * (t -= (2.25 / 2.75)) * t + 0.9375;
14916		}
14917		return 7.5625 * (t -= (2.625 / 2.75)) * t + 0.984375;
14918	},
14919
14920	easeInOutBounce: function(t) {
14921		if (t < 0.5) {
14922			return effects.easeInBounce(t * 2) * 0.5;
14923		}
14924		return effects.easeOutBounce(t * 2 - 1) * 0.5 + 0.5;
14925	}
14926};
14927
14928module.exports = {
14929	effects: effects
14930};
14931
14932// DEPRECATIONS
14933
14934/**
14935 * Provided for backward compatibility, use Chart.helpers.easing.effects instead.
14936 * @function Chart.helpers.easingEffects
14937 * @deprecated since version 2.7.0
14938 * @todo remove at version 3
14939 * @private
14940 */
14941helpers.easingEffects = effects;
14942
14943},{"43":43}],45:[function(require,module,exports){
14944'use strict';
14945
14946var helpers = require(43);
14947
14948/**
14949 * @alias Chart.helpers.options
14950 * @namespace
14951 */
14952module.exports = {
14953	/**
14954	 * Converts the given line height `value` in pixels for a specific font `size`.
14955	 * @param {Number|String} value - The lineHeight to parse (eg. 1.6, '14px', '75%', '1.6em').
14956	 * @param {Number} size - The font size (in pixels) used to resolve relative `value`.
14957	 * @returns {Number} The effective line height in pixels (size * 1.2 if value is invalid).
14958	 * @see https://developer.mozilla.org/en-US/docs/Web/CSS/line-height
14959	 * @since 2.7.0
14960	 */
14961	toLineHeight: function(value, size) {
14962		var matches = ('' + value).match(/^(normal|(\d+(?:\.\d+)?)(px|em|%)?)$/);
14963		if (!matches || matches[1] === 'normal') {
14964			return size * 1.2;
14965		}
14966
14967		value = +matches[2];
14968
14969		switch (matches[3]) {
14970		case 'px':
14971			return value;
14972		case '%':
14973			value /= 100;
14974			break;
14975		default:
14976			break;
14977		}
14978
14979		return size * value;
14980	},
14981
14982	/**
14983	 * Converts the given value into a padding object with pre-computed width/height.
14984	 * @param {Number|Object} value - If a number, set the value to all TRBL component,
14985	 *  else, if and object, use defined properties and sets undefined ones to 0.
14986	 * @returns {Object} The padding values (top, right, bottom, left, width, height)
14987	 * @since 2.7.0
14988	 */
14989	toPadding: function(value) {
14990		var t, r, b, l;
14991
14992		if (helpers.isObject(value)) {
14993			t = +value.top || 0;
14994			r = +value.right || 0;
14995			b = +value.bottom || 0;
14996			l = +value.left || 0;
14997		} else {
14998			t = r = b = l = +value || 0;
14999		}
15000
15001		return {
15002			top: t,
15003			right: r,
15004			bottom: b,
15005			left: l,
15006			height: t + b,
15007			width: l + r
15008		};
15009	},
15010
15011	/**
15012	 * Evaluates the given `inputs` sequentially and returns the first defined value.
15013	 * @param {Array[]} inputs - An array of values, falling back to the last value.
15014	 * @param {Object} [context] - If defined and the current value is a function, the value
15015	 * is called with `context` as first argument and the result becomes the new input.
15016	 * @param {Number} [index] - If defined and the current value is an array, the value
15017	 * at `index` become the new input.
15018	 * @since 2.7.0
15019	 */
15020	resolve: function(inputs, context, index) {
15021		var i, ilen, value;
15022
15023		for (i = 0, ilen = inputs.length; i < ilen; ++i) {
15024			value = inputs[i];
15025			if (value === undefined) {
15026				continue;
15027			}
15028			if (context !== undefined && typeof value === 'function') {
15029				value = value(context);
15030			}
15031			if (index !== undefined && helpers.isArray(value)) {
15032				value = value[index];
15033			}
15034			if (value !== undefined) {
15035				return value;
15036			}
15037		}
15038	}
15039};
15040
15041},{"43":43}],46:[function(require,module,exports){
15042'use strict';
15043
15044module.exports = require(43);
15045module.exports.easing = require(44);
15046module.exports.canvas = require(42);
15047module.exports.options = require(45);
15048
15049},{"42":42,"43":43,"44":44,"45":45}],47:[function(require,module,exports){
15050/**
15051 * Platform fallback implementation (minimal).
15052 * @see https://github.com/chartjs/Chart.js/pull/4591#issuecomment-319575939
15053 */
15054
15055module.exports = {
15056	acquireContext: function(item) {
15057		if (item && item.canvas) {
15058			// Support for any object associated to a canvas (including a context2d)
15059			item = item.canvas;
15060		}
15061
15062		return item && item.getContext('2d') || null;
15063	}
15064};
15065
15066},{}],48:[function(require,module,exports){
15067/**
15068 * Chart.Platform implementation for targeting a web browser
15069 */
15070
15071'use strict';
15072
15073var helpers = require(46);
15074
15075var EXPANDO_KEY = '$chartjs';
15076var CSS_PREFIX = 'chartjs-';
15077var CSS_RENDER_MONITOR = CSS_PREFIX + 'render-monitor';
15078var CSS_RENDER_ANIMATION = CSS_PREFIX + 'render-animation';
15079var ANIMATION_START_EVENTS = ['animationstart', 'webkitAnimationStart'];
15080
15081/**
15082 * DOM event types -> Chart.js event types.
15083 * Note: only events with different types are mapped.
15084 * @see https://developer.mozilla.org/en-US/docs/Web/Events
15085 */
15086var EVENT_TYPES = {
15087	touchstart: 'mousedown',
15088	touchmove: 'mousemove',
15089	touchend: 'mouseup',
15090	pointerenter: 'mouseenter',
15091	pointerdown: 'mousedown',
15092	pointermove: 'mousemove',
15093	pointerup: 'mouseup',
15094	pointerleave: 'mouseout',
15095	pointerout: 'mouseout'
15096};
15097
15098/**
15099 * The "used" size is the final value of a dimension property after all calculations have
15100 * been performed. This method uses the computed style of `element` but returns undefined
15101 * if the computed style is not expressed in pixels. That can happen in some cases where
15102 * `element` has a size relative to its parent and this last one is not yet displayed,
15103 * for example because of `display: none` on a parent node.
15104 * @see https://developer.mozilla.org/en-US/docs/Web/CSS/used_value
15105 * @returns {Number} Size in pixels or undefined if unknown.
15106 */
15107function readUsedSize(element, property) {
15108	var value = helpers.getStyle(element, property);
15109	var matches = value && value.match(/^(\d+)(\.\d+)?px$/);
15110	return matches ? Number(matches[1]) : undefined;
15111}
15112
15113/**
15114 * Initializes the canvas style and render size without modifying the canvas display size,
15115 * since responsiveness is handled by the controller.resize() method. The config is used
15116 * to determine the aspect ratio to apply in case no explicit height has been specified.
15117 */
15118function initCanvas(canvas, config) {
15119	var style = canvas.style;
15120
15121	// NOTE(SB) canvas.getAttribute('width') !== canvas.width: in the first case it
15122	// returns null or '' if no explicit value has been set to the canvas attribute.
15123	var renderHeight = canvas.getAttribute('height');
15124	var renderWidth = canvas.getAttribute('width');
15125
15126	// Chart.js modifies some canvas values that we want to restore on de
15126stroy
15127	canvas[EXPANDO_KEY] = {
15128		initial: {
15129			height: renderHeight,
15130			width: renderWidth,
15131			style: {
15132				display: style.display,
15133				height: style.height,
15134				width: style.width
15135			}
15136		}
15137	};
15138
15139	// Force canvas to display as block to avoid extra space caused by inline
15140	// elements, which would interfere with the responsive resize process.
15141	// https://github.com/chartjs/Chart.js/issues/2538
15142	style.display = style.display || 'block';
15143
15144	if (renderWidth === null || renderWidth === '') {
15145		var displayWidth = readUsedSize(canvas, 'width');
15146		if (displayWidth !== undefined) {
15147			canvas.width = displayWidth;
15148		}
15149	}
15150
15151	if (renderHeight === null || renderHeight === '') {
15152		if (canvas.style.height === '') {
15153			// If no explicit render height and style height, let's apply the aspect ratio,
15154			// which one can be specified by the user but also by charts as default option
15155			// (i.e. options.aspectRatio). If not specified, use canvas aspect ratio of 2.
15156			canvas.height = canvas.width / (config.options.aspectRatio || 2);
15157		} else {
15158			var displayHeight = readUsedSize(canvas, 'height');
15159			if (displayWidth !== undefined) {
15160				canvas.height = displayHeight;
15161			}
15162		}
15163	}
15164
15165	return canvas;
15166}
15167
15168/**
15169 * Detects support for options object argument in addEventListener.
15170 * https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Safely_detecting_option_support
15171 * @private
15172 */
15173var supportsEventListenerOptions = (function() {
15174	var supports = false;
15175	try {
15176		var options = Object.defineProperty({}, 'passive', {
15177			get: function() {
15178				supports = true;
15179			}
15180		});
15181		window.addEventListener('e', null, options);
15182	} catch (e) {
15183		// continue regardless of error
15184	}
15185	return supports;
15186}());
15187
15188// Default passive to true as expected by Chrome for 'touchstart' and 'touchend' events.
15189// https://github.com/chartjs/Chart.js/issues/4287
15190var eventListenerOptions = supportsEventListenerOptions ? {passive: true} : false;
15191
15192function addEventListener(node, type, listener) {
15193	node.addEventListener(type, listener, eventListenerOptions);
15194}
15195
15196function removeEventListener(node, type, listener) {
15197	node.removeEventListener(type, listener, eventListenerOptions);
15198}
15199
15200function createEvent(type, chart, x, y, nativeEvent) {
15201	return {
15202		type: type,
15203		chart: chart,
15204		native: nativeEvent || null,
15205		x: x !== undefined ? x : null,
15206		y: y !== undefined ? y : null,
15207	};
15208}
15209
15210function fromNativeEvent(event, chart) {
15211	var type = EVENT_TYPES[event.type] || event.type;
15212	var pos = helpers.getRelativePosition(event, chart);
15213	return createEvent(type, chart, pos.x, pos.y, event);
15214}
15215
15216function throttled(fn, thisArg) {
15217	var ticking = false;
15218	var args = [];
15219
15220	return function() {
15221		args = Array.prototype.slice.call(arguments);
15222		thisArg = thisArg || this;
15223
15224		if (!ticking) {
15225			ticking = true;
15226			helpers.requestAnimFrame.call(window, function() {
15227				ticking = false;
15228				fn.apply(thisArg, args);
15229			});
15230		}
15231	};
15232}
15233
15234// Implementation based on https://github.com/marcj/css-element-queries
15235function createResizer(handler) {
15236	var resizer = document.createElement('div');
15237	var cls = CSS_PREFIX + 'size-monitor';
15238	var maxSize = 1000000;
15239	var style =
15240		'position:absolute;' +
15241		'left:0;' +
15242		'top:0;' +
15243		'right:0;' +
15244		'bottom:0;' +
15245		'overflow:hidden;' +
15246		'pointer-events:none;' +
15247		'visibility:hidden;' +
15248		'z-index:-1;';
15249
15250	resizer.style.cssText = style;
15251	resizer.className = cls;
15252	resizer.innerHTML =
15253		'<div class="' + cls + '-expand" style="' + style + '">' +
15254			'<div style="' +
15255				'position:absolute;' +
15256				'width:' + maxSize + 'px;' +
15257				'height:' + maxSize + 'px;' +
15258				'left:0;' +
15259				'top:0">' +
15260			'</div>' +
15261		'</div>' +
15262		'<div class="' + cls + '-shrink" style="' + style + '">' +
15263			'<div style="' +
15264				'position:absolute;' +
15265				'width:200%;' +
15266				'height:200%;' +
15267				'left:0; ' +
15268				'top:0">' +
15269			'</div>' +
15270		'</div>';
15271
15272	var expand = resizer.childNodes[0];
15273	var shrink = resizer.childNodes[1];
15274
15275	resizer._reset = function() {
15276		expand.scrollLeft = maxSize;
15277		expand.scrollTop = maxSize;
15278		shrink.scrollLeft = maxSize;
15279		shrink.scrollTop = maxSize;
15280	};
15281	var onScroll = function() {
15282		resizer._reset();
15283		handler();
15284	};
15285
15286	addEventListener(expand, 'scroll', onScroll.bind(expand, 'expand'));
15287	addEventListener(shrink, 'scroll', onScroll.bind(shrink, 'shrink'));
15288
15289	return resizer;
15290}
15291
15292// https://davidwalsh.name/detect-node-insertion
15293function watchForRender(node, handler) {
15294	var expando = node[EXPANDO_KEY] || (node[EXPANDO_KEY] = {});
15295	var proxy = expando.renderProxy = function(e) {
15296		if (e.animationName === CSS_RENDER_ANIMATION) {
15297			handler();
15298		}
15299	};
15300
15301	helpers.each(ANIMATION_START_EVENTS, function(type) {
15302		addEventListener(node, type, proxy);
15303	});
15304
15305	// #4737: Chrome might skip the CSS animation when the CSS_RENDER_MONITOR class
15306	// is removed then added back immediately (same animation frame?). Accessing the
15307	// `offsetParent` property will force a reflow and re-evaluate the CSS animation.
15308	// https://gist.github.com/paulirish/5d52fb081b3570c81e3a#box-metrics
15309	// https://github.com/chartjs/Chart.js/issues/4737
15310	expando.reflow = !!node.offsetParent;
15311
15312	node.classList.add(CSS_RENDER_MONITOR);
15313}
15314
15315function unwatchForRender(node) {
15316	var expando = node[EXPANDO_KEY] || {};
15317	var proxy = expando.renderProxy;
15318
15319	if (proxy) {
15320		helpers.each(ANIMATION_START_EVENTS, function(type) {
15321			removeEventListener(node, type, proxy);
15322		});
15323
15324		delete expando.renderProxy;
15325	}
15326
15327	node.classList.remove(CSS_RENDER_MONITOR);
15328}
15329
15330function addResizeListener(node, listener, chart) {
15331	var expando = node[EXPANDO_KEY] || (node[EXPANDO_KEY] = {});
15332
15333	// Let's keep track of this added resizer and thus avoid DOM query when removing it.
15334	var resizer = expando.resizer = createResizer(throttled(function() {
15335		if (expando.resizer) {
15336			return listener(createEvent('resize', chart));
15337		}
15338	}));
15339
15340	// The resizer needs to be attached to the node parent, so we first need to be
15341	// sure that `node` is attached to the DOM before injecting the resizer element.
15342	watchForRender(node, function() {
15343		if (expando.resizer) {
15344			var container = node.parentNode;
15345			if (container && container !== resizer.parentNode) {
15346				container.insertBefore(resizer, container.firstChild);
15347			}
15348
15349			// The container size might have changed, let's reset the resizer state.
15350			resizer._reset();
15351		}
15352	});
15353}
15354
15355function removeResizeListener(node) {
15356	var expando = node[EXPANDO_KEY] || {};
15357	var resizer = expando.resizer;
15358
15359	delete expando.resizer;
15360	unwatchForRender(node);
15361
15362	if (resizer && resizer.parentNode) {
15363		resizer.parentNode.removeChild(resizer);
15364	}
15365}
15366
15367function injectCSS(platform, css) {
15368	// http://stackoverflow.com/q/3922139
15369	var style = platform._style || document.createElement('style');
15370	if (!platform._style) {
15371		platform._style = style;
15372		css = '/* Chart.js */\n' + css;
15373		style.setAttribute('type', 'text/css');
15374		document.getElementsByTagName('head')[0].appendChild(style);
15375	}
15376
15377	style.appendChild(document.createTextNode(css));
15378}
15379
15380module.exports = {
15381	/**
15382	 * This property holds whether this platform is enabled for the current environment.
15383	 * Currently used by platform.js to select the proper implementation.
15384	 * @private
15385	 */
15386	_enabled: typeof window !== 'undefined' && typeof document !== 'undefined',
15387
15388	initialize: function() {
15389		var keyframes = 'from{opacity:0.99}to{opacity:1}';
15390
15391		injectCSS(this,
15392			// DOM rendering detection
15393			// https://davidwalsh.name/detect-node-insertion
15394			'@-webkit-keyframes ' + CSS_RENDER_ANIMATION + '{' + keyframes + '}' +
15395			'@keyframes ' + CSS_RENDER_ANIMATION + '{' + keyframes + '}' +
15396			'.' + CSS_RENDER_MONITOR + '{' +
15397				'-webkit-animation:' + CSS_RENDER_ANIMATION + ' 0.001s;' +
15398				'animation:' + CSS_RENDER_ANIMATION + ' 0.001s;' +
15399			'}'
15400		);
15401	},
15402
15403	acquireContext: function(item, config) {
15404		if (typeof item === 'string') {
15405			item = document.getElementById(item);
15406		} else if (item.length) {
15407			// Support for array based queries (such as jQuery)
15408			item = item[0];
15409		}
15410
15411		if (item && item.canvas) {
15412			// Support for any object associated to a canvas (including a context2d)
15413			item = item.canvas;
15414		}
15415
15416		// To prevent canvas fingerprinting, some add-ons undefine the getContext
15417		// method, for example: https://github.com/kkapsner/CanvasBlocker
15418		// https://github.com/chartjs/Chart.js/issues/2807
15419		var context = item && item.getContext && item.getContext('2d');
15420
15421		// `instanceof HTMLCanvasElement/CanvasRenderingContext2D` fails when the item is
15422		// inside an iframe or when running in a protected environment. We could guess the
15423		// types from their toString() value but let's keep things flexible and assume it's
15424		// a sufficient condition if the item has a context2D which has item as `canvas`.
15425		// https://github.com/chartjs/Chart.js/issues/3887
15426		// https://github.com/chartjs/Chart.js/issues/4102
15427		// https://github.com/chartjs/Chart.js/issues/4152
15428		if (context && context.canvas === item) {
15429			initCanvas(item, config);
15430			return context;
15431		}
15432
15433		return null;
15434	},
15435
15436	releaseContext: function(context) {
15437		var canvas = context.canvas;
15438		if (!canvas[EXPANDO_KEY]) {
15439			return;
15440		}
15441
15442		var initial = canvas[EXPANDO_KEY].initial;
15443		['height', 'width'].forEach(function(prop) {
15444			var value = initial[prop];
15445			if (helpers.isNullOrUndef(value)) {
15446				canvas.removeAttribute(prop);
15447			} else {
15448				canvas.setAttribute(prop, value);
15449			}
15450		});
15451
15452		helpers.each(initial.style || {}, function(value, key) {
15453			canvas.style[key] = value;
15454		});
15455
15456		// The canvas render size might have been changed (and thus the state stack discarded),
15457		// we can't use save() and restore() to restore the initial state. So make sure that at
15458		// least the canvas context is reset to the default state by setting the canvas width.
15459		// https://www.w3.org/TR/2011/WD-html5-20110525/the-canvas-element.html
15460		canvas.width = canvas.width;
15461
15462		delete canvas[EXPANDO_KEY];
15463	},
15464
15465	addEventListener: function(chart, type, listener) {
15466		var canvas = chart.canvas;
15467		if (type === 'resize') {
15468			// Note: the resize event is not supported on all browsers.
15469			addResizeListener(canvas, listener, chart);
15470			return;
15471		}
15472
15473		var expando = listener[EXPANDO_KEY] || (listener[EXPANDO_KEY] = {});
15474		var proxies = expando.proxies || (expando.proxies = {});
15475		var proxy = proxies[chart.id + '_' + type] = function(event) {
15476			listener(fromNativeEvent(event, chart));
15477		};
15478
15479		addEventListener(canvas, type, proxy);
15480	},
15481
15482	removeEventListener: function(chart, type, listener) {
15483		var canvas = chart.canvas;
15484		if (type === 'resize') {
15485			// Note: the resize event is not supported on all browsers.
15486			removeResizeListener(canvas, listener);
15487			return;
15488		}
15489
15490		var expando = listener[EXPANDO_KEY] || {};
15491		var proxies = expando.proxies || {};
15492		var proxy = proxies[chart.id + '_' + type];
15493		if (!proxy) {
15494			return;
15495		}
15496
15497		removeEventListener(canvas, type, proxy);
15498	}
15499};
15500
15501// DEPRECATIONS
15502
15503/**
15504 * Provided for backward compatibility, use EventTarget.addEventListener instead.
15505 * EventTarget.addEventListener compatibility: Chrome, Opera 7, Safari, FF1.5+, IE9+
15506 * @see https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener
15507 * @function Chart.helpers.addEvent
15508 * @deprecated since version 2.7.0
15509 * @todo remove at version 3
15510 * @private
15511 */
15512helpers.addEvent = addEventListener;
15513
15514/**
15515 * Provided for backward compatibility, use EventTarget.removeEventListener instead.
15516 * EventTarget.removeEventListener compatibility: Chrome, Opera 7, Safari, FF1.5+, IE9+
15517 * @see https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/removeEventListener
15518 * @function Chart.helpers.removeEvent
15519 * @deprecated since version 2.7.0
15520 * @todo remove at version 3
15521 * @private
15522 */
15523helpers.removeEvent = removeEventListener;
15524
15525},{"46":46}],49:[function(require,module,exports){
15526'use strict';
15527
15528var helpers = require(46);
15529var basic = require(47);
15530var dom = require(48);
15531
15532// @TODO Make possible to select another platform at build time.
15533var implementation = dom._enabled ? dom : basic;
15534
15535/**
15536 * @namespace Chart.platform
15537 * @see https://chartjs.gitbooks.io/proposals/content/Platform.html
15538 * @since 2.4.0
15539 */
15540module.exports = helpers.extend({
15541	/**
15542	 * @since 2.7.0
15543	 */
15544	initialize: function() {},
15545
15546	/**
15547	 * Called at chart construction time, returns a context2d instance implementing
15548	 * the [W3C Canvas 2D Context API standard]{@link https://www.w3.org/TR/2dcontext/}.
15549	 * @param {*} item - The native item from which to acquire context (platform specific)
15550	 * @param {Object} options - The chart options
15551	 * @returns {CanvasRenderingContext2D} context2d instance
15552	 */
15553	acquireContext: function() {},
15554
15555	/**
15556	 * Called at chart destruction time, releases any resources associated to the context
15557	 * previously returned by the acquireContext() method.
15558	 * @param {CanvasRenderingContext2D} context - The context2d instance
15559	 * @returns {Boolean} true if the method succeeded, else false
15560	 */
15561	releaseContext: function() {},
15562
15563	/**
15564	 * Registers the specified listener on the given chart.
15565	 * @param {Chart} chart - Chart from which to listen for event
15566	 * @param {String} type - The ({@link IEvent}) type to listen for
15567	 * @param {Function} listener - Receives a notification (an object that implements
15568	 * the {@link IEvent} interface) when an event of the specified type occurs.
15569	 */
15570	addEventListener: function() {},
15571
15572	/**
15573	 * Removes the specified listener previously registered with addEventListener.
15574	 * @param {Chart} chart -Chart from which to remove the listener
15575	 * @param {String} type - The ({@link IEvent}) type to remove
15576	 * @param {Function} listener - The listener function to remove from the event target.
15577	 */
15578	removeEventListener: function() {}
15579
15580}, implementation);
15581
15582/**
15583 * @interface IPlatform
15584 * Allows abstracting platform dependencies away from the chart
15585 * @borrows Chart.platform.acquireContext as acquireContext
15586 * @borrows Chart.platform.releaseContext as releaseContext
15587 * @borrows Chart.platform.addEventListener as addEventListener
15588 * @borrows Chart.platform.removeEventListener as removeEventListener
15589 */
15590
15591/**
15592 * @interface IEvent
15593 * @prop {String} type - The event type name, possible values are:
15594 * 'contextmenu', 'mouseenter', 'mousedown', 'mousemove', 'mouseup', 'mouseout',
15595 * 'click', 'dblclick', 'keydown', 'keypress', 'keyup' and 'resize'
15596 * @prop {*} native - The original native event (null for emulated events, e.g. 'resize')
15597 * @prop {Number} x - The mouse x position, relative to the canvas (null for incompatible events)
15598 * @prop {Number} y - The mouse y position, relative to the canvas (null for incompatible events)
15599 */
15600
15601},{"46":46,"47":47,"48":48}],50:[function(require,module,exports){
15602'use strict';
15603
15604module.exports = {};
15605module.exports.filler = require(51);
15606module.exports.legend = require(52);
15607module.exports.title = require(53);
15608
15609},{"51":51,"52":52,"53":53}],51:[function(require,module,exports){
15610/**
15611 * Plugin based on discussion from the following Chart.js issues:
15612 * @see https://github.com/chartjs/Chart.js/issues/2380#issuecomment-279961569
15613 * @see https://github.com/chartjs/Chart.js/issues/2440#issuecomment-256461897
15614 */
15615
15616'use strict';
15617
15618var defaults = require(26);
15619var elements = require(41);
15620var helpers = require(46);
15621
15622defaults._set('global', {
15623	plugins: {
15624		filler: {
15625			propagate: true
15626		}
15627	}
15628});
15629
15630var mappers = {
15631	dataset: function(source) {
15632		var index = source.fill;
15633		var chart = source.chart;
15634		var meta = chart.getDatasetMeta(index);
15635		var visible = meta && chart.isDatasetVisible(index);
15636		var points = (visible && meta.dataset._children) || [];
15637		var length = points.length || 0;
15638
15639		return !length ? null : function(point, i) {
15640			return (i < length && points[i]._view) || null;
15641		};
15642	},
15643
15644	boundary: function(source) {
15645		var boundary = source.boundary;
15646		var x = boundary ? boundary.x : null;
15647		var y = boundary ? boundary.y : null;
15648
15649		return function(point) {
15650			return {
15651				x: x === null ? point.x : x,
15652				y: y === null ? point.y : y,
15653			};
15654		};
15655	}
15656};
15657
15658// @todo if (fill[0] === '#')
15659function decodeFill(el, index, count) {
15660	var model = el._model || {};
15661	var fill = model.fill;
15662	var target;
15663
15664	if (fill === undefined) {
15665		fill = !!model.backgroundColor;
15666	}
15667
15668	if (fill === false || fill === null) {
15669		return false;
15670	}
15671
15672	if (fill === true) {
15673		return 'origin';
15674	}
15675
15676	target = parseFloat(fill, 10);
15677	if (isFinite(target) && Math.floor(target) === target) {
15678		if (fill[0] === '-' || fill[0] === '+') {
15679			target = index + target;
15680		}
15681
15682		if (target === index || target < 0 || target >= count) {
15683			return false;
15684		}
15685
15686		return target;
15687	}
15688
15689	switch (fill) {
15690	// compatibility
15691	case 'bottom':
15692		return 'start';
15693	case 'top':
15694		return 'end';
15695	case 'zero':
15696		return 'origin';
15697	// supported boundaries
15698	case 'origin':
15699	case 'start':
15700	case 'end':
15701		return fill;
15702	// invalid fill values
15703	default:
15704		return false;
15705	}
15706}
15707
15708function computeBoundary(source) {
15709	var model = source.el._model || {};
15710	var scale = source.el._scale || {};
15711	var fill = source.fill;
15712	var target = null;
15713	var horizontal;
15714
15715	if (isFinite(fill)) {
15716		return null;
15717	}
15718
15719	// Backward compatibility: until v3, we still need to support boundary values set on
15720	// the model (scaleTop, scaleBottom and scaleZero) because some external plugins and
15721	// controllers might still use it (e.g. the Smith chart).
15722
15723	if (fill === 'start') {
15724		target = model.scaleBottom === undefined ? scale.bottom : model.scaleBottom;
15725	} else if (fill === 'end') {
15726		target = model.scaleTop === undefined ? scale.top : model.scaleTop;
15727	} else if (model.scaleZero !== undefined) {
15728		target = model.scaleZero;
15729	} else if (scale.getBasePosition) {
15730		target = scale.getBasePosition();
15731	} else if (scale.getBasePixel) {
15732		target = scale.getBasePixel();
15733	}
15734
15735	if (target !== undefined && target !== null) {
15736		if (target.x !== undefined && target.y !== undefined) {
15737			return target;
15738		}
15739
15740		if (typeof target === 'number' && isFinite(target)) {
15741			horizontal = scale.isHorizontal();
15742			return {
15743				x: horizontal ? target : null,
15744				y: horizontal ? null : target
15745			};
15746		}
15747	}
15748
15749	return null;
15750}
15751
15752function resolveTarget(sources, index, propagate) {
15753	var source = sources[index];
15754	var fill = source.fill;
15755	var visited = [index];
15756	var target;
15757
15758	if (!propagate) {
15759		return fill;
15760	}
15761
15762	while (fill !== false && visited.indexOf(fill) === -1) {
15763		if (!isFinite(fill)) {
15764			return fill;
15765		}
15766
15767		target = sources[fill];
15768		if (!target) {
15769			return false;
15770		}
15771
15772		if (target.visible) {
15773			return fill;
15774		}
15775
15776		visited.push(fill);
15777		fill = target.fill;
15778	}
15779
15780	return false;
15781}
15782
15783function createMapper(source) {
15784	var fill = source.fill;
15785	var type = 'dataset';
15786
15787	if (fill === false) {
15788		return null;
15789	}
15790
15791	if (!isFinite(fill)) {
15792		type = 'boundary';
15793	}
15794
15795	return mappers[type](source);
15796}
15797
15798function isDrawable(point) {
15799	return point && !point.skip;
15800}
15801
15802function drawArea(ctx, curve0, curve1, len0, len1) {
15803	var i;
15804
15805	if (!len0 || !len1) {
15806		return;
15807	}
15808
15809	// building first area curve (normal)
15810	ctx.moveTo(curve0[0].x, curve0[0].y);
15811	for (i = 1; i < len0; ++i) {
15812		helpers.canvas.lineTo(ctx, curve0[i - 1], curve0[i]);
15813	}
15814
15815	// joining the two area curves
15816	ctx.lineTo(curve1[len1 - 1].x, curve1[len1 - 1].y);
15817
15818	// building opposite area curve (reverse)
15819	for (i = len1 - 1; i > 0; --i) {
15820		helpers.canvas.lineTo(ctx, curve1[i], curve1[i - 1], true);
15821	}
15822}
15823
15824function doFill(ctx, points, mapper, view, color, loop) {
15825	var count = points.length;
15826	var span = view.spanGaps;
15827	var curve0 = [];
15828	var curve1 = [];
15829	var len0 = 0;
15830	var len1 = 0;
15831	var i, ilen, index, p0, p1, d0, d1;
15832
15833	ctx.beginPath();
15834
15835	for (i = 0, ilen = (count + !!loop); i < ilen; ++i) {
15836		index = i % count;
15837		p0 = points[index]._view;
15838		p1 = mapper(p0, index, view);
15839		d0 = isDrawable(p0);
15840		d1 = isDrawable(p1);
15841
15842		if (d0 && d1) {
15843			len0 = curve0.push(p0);
15844			len1 = curve1.push(p1);
15845		} else if (len0 && len1) {
15846			if (!span) {
15847				drawArea(ctx, curve0, curve1, len0, len1);
15848				len0 = len1 = 0;
15849				curve0 = [];
15850				curve1 = [];
15851			} else {
15852				if (d0) {
15853					curve0.push(p0);
15854				}
15855				if (d1) {
15856					curve1.push(p1);
15857				}
15858			}
15859		}
15860	}
15861
15862	drawArea(ctx, curve0, curve1, len0, len1);
15863
15864	ctx.closePath();
15865	ctx.fillStyle = color;
15866	ctx.fill();
15867}
15868
15869module.exports = {
15870	id: 'filler',
15871
15872	afterDatasetsUpdate: function(chart, options) {
15873		var count = (chart.data.datasets || []).length;
15874		var propagate = options.propagate;
15875		var sources = [];
15876		var meta, i, el, source;
15877
15878		for (i = 0; i < count; ++i) {
15879			meta = chart.getDatasetMeta(i);
15880			el = meta.dataset;
15881			source = null;
15882
15883			if (el && el._model && el instanceof elements.Line) {
15884				source = {
15885					visible: chart.isDatasetVisible(i),
15886					fill: decodeFill(el, i, count),
15887					chart: chart,
15888					el: el
15889				};
15890			}
15891
15892			meta.$filler = source;
15893			sources.push(source);
15894		}
15895
15896		for (i = 0; i < count; ++i) {
15897			source = sources[i];
15898			if (!source) {
15899				continue;
15900			}
15901
15902			source.fill = resolveTarget(sources, i, propagate);
15903			source.boundary = computeBoundary(source);
15904			source.mapper = createMapper(source);
15905		}
15906	},
15907
15908	beforeDatasetDraw: function(chart, args) {
15909		var meta = args.meta.$filler;
15910		if (!meta) {
15911			return;
15912		}
15913
15914		var ctx = chart.ctx;
15915		var el = meta.el;
15916		var view = el._view;
15917		var points = el._children || [];
15918		var mapper = meta.mapper;
15919		var color = view.backgroundColor || defaults.global.defaultColor;
15920
15921		if (mapper && color && points.length) {
15922			helpers.canvas.clipArea(ctx, chart.chartArea);
15923			doFill(ctx, points, mapper, view, color, el._loop);
15924			helpers.canvas.unclipArea(ctx);
15925		}
15926	}
15927};
15928
15929},{"26":26,"41":41,"46":46}],52:[function(require,module,exports){
15930'use strict';
15931
15932var defaults = require(26);
15933var Element = require(27);
15934var helpers = require(46);
15935var layouts = require(31);
15936
15937var noop = helpers.noop;
15938
15939defaults._set('global', {
15940	legend: {
15941		display: true,
15942		position: 'top',
15943		fullWidth: true,
15944		reverse: false,
15945		weight: 1000,
15946
15947		// a callback that will handle
15948		onClick: function(e, legendItem) {
15949			var index = legendItem.datasetIndex;
15950			var ci = this.chart;
15951			var meta = ci.getDatasetMeta(index);
15952
15953			// See controller.isDatasetVisible comment
15954			meta.hidden = meta.hidden === null ? !ci.data.datasets[index].hidden : null;
15955
15956			// We hid a dataset ... rerender the chart
15957			ci.update();
15958		},
15959
15960		onHover: null,
15961
15962		labels: {
15963			boxWidth: 40,
15964			padding: 10,
15965			// Generates labels shown in the legend
15966			// Valid properties to return:
15967			// text : text to display
15968			// fillStyle : fill of coloured box
15969			// strokeStyle: stroke of coloured box
15970			// hidden : if this legend item refers to a hidden item
15971			// lineCap : cap style for line
15972			// lineDash
15973			// lineDashOffset :
15974			// lineJoin :
15975			// lineWidth :
15976			generateLabels: function(chart) {
15977				var data = chart.data;
15978				return helpers.isArray(data.datasets) ? data.datasets.map(function(dataset, i) {
15979					return {
15980						text: dataset.label,
15981						fillStyle: (!helpers.isArray(dataset.backgroundColor) ? dataset.backgroundColor : dataset.backgroundColor[0]),
15982						hidden: !chart.isDatasetVisible(i),
15983						lineCap: dataset.borderCapStyle,
15984						lineDash: dataset.borderDash,
15985						lineDashOffset: dataset.borderDashOffset,
15986						lineJoin: dataset.borderJoinStyle,
15987						lineWidth: dataset.borderWidth,
15988						strokeStyle: dataset.borderColor,
15989						pointStyle: dataset.pointStyle,
15990
15991						// Below is extra data used for toggling the datasets
15992						datasetIndex: i
15993					};
15994				}, this) : [];
15995			}
15996		}
15997	},
15998
15999	legendCallback: function(chart) {
16000		var text = [];
16001		text.push('<ul class="' + chart.id + '-legend">');
16002		for (var i = 0; i < chart.data.datasets.length; i++) {
16003			text.push('<li><span style="background-color:' + chart.data.datasets[i].backgroundColor + '"></span>');
16004			if (chart.data.datasets[i].label) {
16005				text.push(chart.data.datasets[i].label);
16006			}
16007			text.push('</li>');
16008		}
16009		text.push('</ul>');
16010		return text.join('');
16011	}
16012});
16013
16014/**
16015 * Helper function to get the box width based on the usePointStyle option
16016 * @param labelopts {Object} the label options on the legend
16017 * @param fontSize {Number} the label font size
16018 * @return {Number} width of the color box area
16019 */
16020function getBoxWidth(labelOpts, fontSize) {
16021	return labelOpts.usePointStyle ?
16022		fontSize * Math.SQRT2 :
16023		labelOpts.boxWidth;
16024}
16025
16026/**
16027 * IMPORTANT: this class is exposed publicly as Chart.Legend, backward compatibility required!
16028 */
16029var Legend = Element.extend({
16030
16031	initialize: function(config) {
16032		helpers.extend(this, config);
16033
16034		// Contains hit boxes for each dataset (in dataset order)
16035		this.legendHitBoxes = [];
16036
16037		// Are we in doughnut mode which has a different data type
16038		this.doughnutMode = false;
16039	},
16040
16041	// These methods are ordered by lifecycle. Utilities then follow.
16042	// Any function defined here is inherited by all legend types.
16043	// Any function can be extended by the legend type
16044
16045	beforeUpdate: noop,
16046	update: function(maxWidth, maxHeight, margins) {
16047		var me = this;
16048
16049		// Update Lifecycle - Probably don't want to ever extend or overwrite this function ;)
16050		me.beforeUpdate();
16051
16052		// Absorb the master measurements
16053		me.maxWidth = maxWidth;
16054		me.maxHeight = maxHeight;
16055		me.margins = margins;
16056
16057		// Dimensions
16058		me.beforeSetDimensions();
16059		me.setDimensions();
16060		me.afterSetDimensions();
16061		// Labels
16062		me.beforeBuildLabels();
16063		me.buildLabels();
16064		me.afterBuildLabels();
16065
16066		// Fit
16067		me.beforeFit();
16068		me.fit();
16069		me.afterFit();
16070		//
16071		me.afterUpdate();
16072
16073		return me.minSize;
16074	},
16075	afterUpdate: noop,
16076
16077	//
16078
16079	beforeSetDimensions: noop,
16080	setDimensions: function() {
16081		var me = this;
16082		// Set the unconstrained dimension before label rotation
16083		if (me.isHorizontal()) {
16084			// Reset position before calculating rotation
16085			me.width = me.maxWidth;
16086			me.left = 0;
16087			me.right = me.width;
16088		} else {
16089			me.height = me.maxHeight;
16090
16091			// Reset position before calculating rotation
16092			me.top = 0;
16093			me.bottom = me.height;
16094		}
16095
16096		// Reset padding
16097		me.paddingLeft = 0;
16098		me.paddingTop = 0;
16099		me.paddingRight = 0;
16100		me.paddingBottom = 0;
16101
16102		// Reset minSize
16103		me.minSize = {
16104			width: 0,
16105			height: 0
16106		};
16107	},
16108	afterSetDimensions: noop,
16109
16110	//
16111
16112	beforeBuildLabels: noop,
16113	buildLabels: function() {
16114		var me = this;
16115		var labelOpts = me.options.labels || {};
16116		var legendItems = helpers.callback(labelOpts.generateLabels, [me.chart], me) || [];
16117
16118		if (labelOpts.filter) {
16119			legendItems = legendItems.filter(function(item) {
16120				return labelOpts.filter(item, me.chart.data);
16121			});
16122		}
16123
16124		if (me.options.reverse) {
16125			legendItems.reverse();
16126		}
16127
16128		me.legendItems = legendItems;
16129	},
16130	afterBuildLabels: noop,
16131
16132	//
16133
16134	beforeFit: noop,
16135	fit: function() {
16136		var me = this;
16137		var opts = me.options;
16138		var labelOpts = opts.labels;
16139		var display = opts.display;
16140
16141		var ctx = me.ctx;
16142
16143		var globalDefault = defaults.global;
16144		var valueOrDefault = helpers.valueOrDefault;
16145		var fontSize = valueOrDefault(labelOpts.fontSize, globalDefault.defaultFontSize);
16146		var fontStyle = valueOrDefault(labelOpts.fontStyle, globalDefault.defaultFontStyle);
16147		var fontFamily = valueOrDefault(labelOpts.fontFamily, globalDefault.defaultFontFamily);
16148		var labelFont = helpers.fontString(fontSize, fontStyle, fontFamily);
16149
16150		// Reset hit boxes
16151		var hitboxes = me.legendHitBoxes = [];
16152
16153		var minSize = me.minSize;
16154		var isHorizontal = me.isHorizontal();
16155
16156		if (isHorizontal) {
16157			minSize.width = me.maxWidth; // fill all the width
16158			minSize.height = display ? 10 : 0;
16159		} else {
16160			minSize.width = display ? 10 : 0;
16161			minSize.height = me.maxHeight; // fill all the height
16162		}
16163
16164		// Increase sizes here
16165		if (display) {
16166			ctx.font = labelFont;
16167
16168			if (isHorizontal) {
16169				// Labels
16170
16171				// Width of each line of legend boxes. Labels wrap onto multiple lines when there are too many to fit on one
16172				var lineWidths = me.lineWidths = [0];
16173				var totalHeight = me.legendItems.length ? fontSize + (labelOpts.padding) : 0;
16174
16175				ctx.textAlign = 'left';
16176				ctx.textBaseline = 'top';
16177
16178				helpers.each(me.legendItems, function(legendItem, i) {
16179					var boxWidth = getBoxWidth(labelOpts, fontSize);
16180					var width = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width;
16181
16182					if (lineWidths[lineWidths.length - 1] + width + labelOpts.padding >= me.width) {
16183						totalHeight += fontSize + (labelOpts.padding);
16184						lineWidths[lineWidths.length] = me.left;
16185					}
16186
16187					// Store the hitbox width and height here. Final position will be updated in `draw`
16188					hitboxes[i] = {
16189						left: 0,
16190						top: 0,
16191						width: width,
16192						height: fontSize
16193					};
16194
16195					lineWidths[lineWidths.length - 1] += width + labelOpts.padding;
16196				});
16197
16198				minSize.height += totalHeight;
16199
16200			} else {
16201				var vPadding = labelOpts.padding;
16202				var columnWidths = me.columnWidths = [];
16203				var totalWidth = labelOpts.padding;
16204				var currentColWidth = 0;
16205				var currentColHeight = 0;
16206				var itemHeight = fontSize + vPadding;
16207
16208				helpers.each(me.legendItems, function(legendItem, i) {
16209					var boxWidth = getBoxWidth(labelOpts, fontSize);
16210					var itemWidth = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width;
16211
16212					// If too tall, go to new column
16213					if (currentColHeight + itemHeight > minSize.height) {
16214						totalWidth += currentColWidth + labelOpts.padding;
16215						columnWidths.push(currentColWidth); // previous column width
16216
16217						currentColWidth = 0;
16218						currentColHeight = 0;
16219					}
16220
16221					// Get max width
16222					currentColWidth = Math.max(currentColWidth, itemWidth);
16223					currentColHeight += itemHeight;
16224
16225					// Store the hitbox width and height here. Final position will be updated in `draw`
16226					hitboxes[i] = {
16227						left: 0,
16228						top: 0,
16229						width: itemWidth,
16230						height: fontSize
16231					};
16232				});
16233
16234				totalWidth += currentColWidth;
16235				columnWidths.push(currentColWidth);
16236				minSize.width += totalWidth;
16237			}
16238		}
16239
16240		me.width = minSize.width;
16241		me.height = minSize.height;
16242	},
16243	afterFit: noop,
16244
16245	// Shared Methods
16246	isHorizontal: function() {
16247		return this.options.position === 'top' || this.options.position === 'bottom';
16248	},
16249
16250	// Actually draw the legend on the canvas
16251	draw: function() {
16252		var me = this;
16253		var opts = me.options;
16254		var labelOpts = opts.labels;
16255		var globalDefault = defaults.global;
16256		var lineDefault = globalDefault.elements.line;
16257		var legendWidth = me.width;
16258		var lineWidths = me.lineWidths;
16259
16260		if (opts.display) {
16261			var ctx = me.ctx;
16262			var valueOrDefault = helpers.valueOrDefault;
16263			var fontColor = valueOrDefault(labelOpts.fontColor, globalDefault.defaultFontColor);
16264			var fontSize = valueOrDefault(labelOpts.fontSize, globalDefault.defaultFontSize);
16265			var fontStyle = valueOrDefault(labelOpts.fontStyle, globalDefault.defaultFontStyle);
16266			var fontFamily = valueOrDefault(labelOpts.fontFamily, globalDefault.defaultFontFamily);
16267			var labelFont = helpers.fontString(fontSize, fontStyle, fontFamily);
16268			var cursor;
16269
16270			// Canvas setup
16271			ctx.textAlign = 'left';
16272			ctx.textBaseline = 'middle';
16273			ctx.lineWidth = 0.5;
16274			ctx.strokeStyle = fontColor; // for strikethrough effect
16275			ctx.fillStyle = fontColor; // render in correct colour
16276			ctx.font = labelFont;
16277
16278			var boxWidth = getBoxWidth(labelOpts, fontSize);
16279			var hitboxes = me.legendHitBoxes;
16280
16281			// current position
16282			var drawLegendBox = function(x, y, legendItem) {
16283				if (isNaN(boxWidth) || boxWidth <= 0) {
16284					return;
16285				}
16286
16287				// Set the ctx for the box
16288				ctx.save();
16289
16290				ctx.fillStyle = valueOrDefault(legendItem.fillStyle, globalDefault.defaultColor);
16291				ctx.lineCap = valueOrDefault(legendItem.lineCap, lineDefault.borderCapStyle);
16292				ctx.lineDashOffset = valueOrDefault(legendItem.lineDashOffset, lineDefault.borderDashOffset);
16293				ctx.lineJoin = valueOrDefault(legendItem.lineJoin, lineDefault.borderJoinStyle);
16294				ctx.lineWidth = valueOrDefault(legendItem.lineWidth, lineDefault.borderWidth);
16295				ctx.strokeStyle = valueOrDefault(legendItem.strokeStyle, globalDefault.defaultColor);
16296				var isLineWidthZero = (valueOrDefault(legendItem.lineWidth, lineDefault.borderWidth) === 0);
16297
16298				if (ctx.setLineDash) {
16299					// IE 9 and 10 do not support line dash
16300					ctx.setLineDash(valueOrDefault(legendItem.lineDash, lineDefault.borderDash));
16301				}
16302
16303				if (opts.labels && opts.labels.usePointStyle) {
16304					// Recalculate x and y for drawPoint() because its expecting
16305					// x and y to be center of figure (instead of top left)
16306					var radius = fontSize * Math.SQRT2 / 2;
16307					var offSet = radius / Math.SQRT2;
16308					var centerX = x + offSet;
16309					var centerY = y + offSet;
16310
16311					// Draw pointStyle as legend symbol
16312					helpers.canvas.drawPoint(ctx, legendItem.pointStyle, radius, centerX, centerY);
16313				} else {
16314					// Draw box as legend symbol
16315					if (!isLineWidthZero) {
16316						ctx.strokeRect(x, y, boxWidth, fontSize);
16317					}
16318					ctx.fillRect(x, y, boxWidth, fontSize);
16319				}
16320
16321				ctx.restore();
16322			};
16323			var fillText = function(x, y, legendItem, textWidth) {
16324				var halfFontSize = fontSize / 2;
16325				var xLeft = boxWidth + halfFontSize + x;
16326				var yMiddle = y + halfFontSize;
16327
16328				ctx.fillText(legendItem.text, xLeft, yMiddle);
16329
16330				if (legendItem.hidden) {
16331					// Strikethrough the text if hidden
16332					ctx.beginPath();
16333					ctx.lineWidth = 2;
16334					ctx.moveTo(xLeft, yMiddle);
16335					ctx.lineTo(xLeft + textWidth, yMiddle);
16336					ctx.stroke();
16337				}
16338			};
16339
16340			// Horizontal
16341			var isHorizontal = me.isHorizontal();
16342			if (isHorizontal) {
16343				cursor = {
16344					x: me.left + ((legendWidth - lineWidths[0]) / 2),
16345					y: me.top + labelOpts.padding,
16346					line: 0
16347				};
16348			} else {
16349				cursor = {
16350					x: me.left + labelOpts.padding,
16351					y: me.top + labelOpts.padding,
16352					line: 0
16353				};
16354			}
16355
16356			var itemHeight = fontSize + labelOpts.padding;
16357			helpers.each(me.legendItems, function(legendItem, i) {
16358				var textWidth = ctx.measureText(legendItem.text).width;
16359				var width = boxWidth + (fontSize / 2) + textWidth;
16360				var x = cursor.x;
16361				var y = cursor.y;
16362
16363				if (isHorizontal) {
16364					if (x + width >= legendWidth) {
16365						y = cursor.y += itemHeight;
16366						cursor.line++;
16367						x = cursor.x = me.left + ((legendWidth - lineWidths[cursor.line]) / 2);
16368					}
16369				} else if (y + itemHeight > me.bottom) {
16370					x = cursor.x = x + me.columnWidths[cursor.line] + labelOpts.padding;
16371					y = cursor.y = me.top + labelOpts.padding;
16372					cursor.line++;
16373				}
16374
16375				drawLegendBox(x, y, legendItem);
16376
16377				hitboxes[i].left = x;
16378				hitboxes[i].top = y;
16379
16380				// Fill the actual label
16381				fillText(x, y, legendItem, textWidth);
16382
16383				if (isHorizontal) {
16384					cursor.x += width + (labelOpts.padding);
16385				} else {
16386					cursor.y += itemHeight;
16387				}
16388
16389			});
16390		}
16391	},
16392
16393	/**
16394	 * Handle an event
16395	 * @private
16396	 * @param {IEvent} event - The event to handle
16397	 * @return {Boolean} true if a change occured
16398	 */
16399	handleEvent: function(e) {
16400		var me = this;
16401		var opts = me.options;
16402		var type = e.type === 'mouseup' ? 'click' : e.type;
16403		var changed = false;
16404
16405		if (type === 'mousemove') {
16406			if (!opts.onHover) {
16407				return;
16408			}
16409		} else if (type === 'click') {
16410			if (!opts.onClick) {
16411				return;
16412			}
16413		} else {
16414			return;
16415		}
16416
16417		// Chart event already has relative position in it
16418		var x = e.x;
16419		var y = e.y;
16420
16421		if (x >= me.left && x <= me.right && y >= me.top && y <= me.bottom) {
16422			// See if we are touching one of the dataset boxes
16423			var lh = me.legendHitBoxes;
16424			for (var i = 0; i < lh.length; ++i) {
16425				var hitBox = lh[i];
16426
16427				if (x >= hitBox.left && x <= hitBox.left + hitBox.width && y >= hitBox.top && y <= hitBox.top + hitBox.height) {
16428					// Touching an element
16429					if (type === 'click') {
16430						// use e.native for backwards compatibility
16431						opts.onClick.call(me, e.native, me.legendItems[i]);
16432						changed = true;
16433						break;
16434					} else if (type === 'mousemove') {
16435						// use e.native for backwards compatibility
16436						opts.onHover.call(me, e.native, me.legendItems[i]);
16437						changed = true;
16438						break;
16439					}
16440				}
16441			}
16442		}
16443
16444		return changed;
16445	}
16446});
16447
16448function createNewLegendAndAttach(chart, legendOpts) {
16449	var legend = new Legend({
16450		ctx: chart.ctx,
16451		options: legendOpts,
16452		chart: chart
16453	});
16454
16455	layouts.configure(chart, legend, legendOpts);
16456	layouts.addBox(chart, legend);
16457	chart.legend = legend;
16458}
16459
16460module.exports = {
16461	id: 'legend',
16462
16463	/**
16464	 * Backward compatibility: since 2.1.5, the legend is registered as a plugin, making
16465	 * Chart.Legend obsolete. To avoid a breaking change, we export the Legend as part of
16466	 * the plugin, which one will be re-exposed in the chart.js file.
16467	 * https://github.com/chartjs/Chart.js/pull/2640
16468	 * @private
16469	 */
16470	_element: Legend,
16471
16472	beforeInit: function(chart) {
16473		var legendOpts = chart.options.legend;
16474
16475		if (legendOpts) {
16476			createNewLegendAndAttach(chart, legendOpts);
16477		}
16478	},
16479
16480	beforeUpdate: function(chart) {
16481		var legendOpts = chart.options.legend;
16482		var legend = chart.legend;
16483
16484		if (legendOpts) {
16485			helpers.mergeIf(legendOpts, defaults.global.legend);
16486
16487			if (legend) {
16488				layouts.configure(chart, legend, legendOpts);
16489				legend.options = legendOpts;
16490			} else {
16491				createNewLegendAndAttach(chart, legendOpts);
16492			}
16493		} else if (legend) {
16494			layouts.removeBox(chart, legend);
16495			delete chart.legend;
16496		}
16497	},
16498
16499	afterEvent: function(chart, e) {
16500		var legend = chart.legend;
16501		if (legend) {
16502			legend.handleEvent(e);
16503		}
16504	}
16505};
16506
16507},{"26":26,"27":27,"31":31,"46":46}],53:[function(require,module,exports){
16508'use strict';
16509
16510var defaults = require(26);
16511var Element = require(27);
16512var helpers = require(46);
16513var layouts = require(31);
16514
16515var noop = helpers.noop;
16516
16517defaults._set('global', {
16518	title: {
16519		display: false,
16520		fontStyle: 'bold',
16521		fullWidth: true,
16522		lineHeight: 1.2,
16523		padding: 10,
16524		position: 'top',
16525		text: '',
16526		weight: 2000         // by default greater than legend (1000) to be above
16527	}
16528});
16529
16530/**
16531 * IMPORTANT: this class is exposed publicly as Chart.Legend, backward compatibility required!
16532 */
16533var Title = Element.extend({
16534	initialize: function(config) {
16535		var me = this;
16536		helpers.extend(me, config);
16537
16538		// Contains hit boxes for each dataset (in dataset order)
16539		me.legendHitBoxes = [];
16540	},
16541
16542	// These methods are ordered by lifecycle. Utilities then follow.
16543
16544	beforeUpdate: noop,
16545	update: function(maxWidth, maxHeight, margins) {
16546		var me = this;
16547
16548		// Update Lifecycle - Probably don't want to ever extend or overwrite this function ;)
16549		me.beforeUpdate();
16550
16551		// Absorb the master measurements
16552		me.maxWidth = maxWidth;
16553		me.maxHeight = maxHeight;
16554		me.margins = margins;
16555
16556		// Dimensions
16557		me.beforeSetDimensions();
16558		me.setDimensions();
16559		me.afterSetDimensions();
16560		// Labels
16561		me.beforeBuildLabels();
16562		me.buildLabels();
16563		me.afterBuildLabels();
16564
16565		// Fit
16566		me.beforeFit();
16567		me.fit();
16568		me.afterFit();
16569		//
16570		me.afterUpdate();
16571
16572		return me.minSize;
16573
16574	},
16575	afterUpdate: noop,
16576
16577	//
16578
16579	beforeSetDimensions: noop,
16580	setDimensions: function() {
16581		var me = this;
16582		// Set the unconstrained dimension before label rotation
16583		if (me.isHorizontal()) {
16584			// Reset position before calculating rotation
16585			me.width = me.maxWidth;
16586			me.left = 0;
16587			me.right = me.width;
16588		} else {
16589			me.height = me.maxHeight;
16590
16591			// Reset position before calculating rotation
16592			me.top = 0;
16593			me.bottom = me.height;
16594		}
16595
16596		// Reset padding
16597		me.paddingLeft = 0;
16598		me.paddingTop = 0;
16599		me.paddingRight = 0;
16600		me.paddingBottom = 0;
16601
16602		// Reset minSize
16603		me.minSize = {
16604			width: 0,
16605			height: 0
16606		};
16607	},
16608	afterSetDimensions: noop,
16609
16610	//
16611
16612	beforeBuildLabels: noop,
16613	buildLabels: noop,
16614	afterBuildLabels: noop,
16615
16616	//
16617
16618	beforeFit: noop,
16619	fit: function() {
16620		var me = this;
16621		var valueOrDefault = helpers.valueOrDefault;
16622		var opts = me.options;
16623		var display = opts.display;
16624		var fontSize = valueOrDefault(opts.fontSize, defaults.global.defaultFontSize);
16625		var minSize = me.minSize;
16626		var lineCount = helpers.isArray(opts.text) ? opts.text.length : 1;
16627		var lineHeight = helpers.options.toLineHeight(opts.lineHeight, fontSize);
16628		var textSize = display ? (lineCount * lineHeight) + (opts.padding * 2) : 0;
16629
16630		if (me.isHorizontal()) {
16631			minSize.width = me.maxWidth; // fill all the width
16632			minSize.height = textSize;
16633		} else {
16634			minSize.width = textSize;
16635			minSize.height = me.maxHeight; // fill all the height
16636		}
16637
16638		me.width = minSize.width;
16639		me.height = minSize.height;
16640
16641	},
16642	afterFit: noop,
16643
16644	// Shared Methods
16645	isHorizontal: function() {
16646		var pos = this.options.position;
16647		return pos === 'top' || pos === 'bottom';
16648	},
16649
16650	// Actually draw the title block on the canvas
16651	draw: function() {
16652		var me = this;
16653		var ctx = me.ctx;
16654		var valueOrDefault = helpers.valueOrDefault;
16655		var opts = me.options;
16656		var globalDefaults = defaults.global;
16657
16658		if (opts.display) {
16659			var fontSize = valueOrDefault(opts.fontSize, globalDefaults.defaultFontSize);
16660			var fontStyle = valueOrDefault(opts.fontStyle, globalDefaults.defaultFontStyle);
16661			var fontFamily = valueOrDefault(opts.fontFamily, globalDefaults.defaultFontFamily);
16662			var titleFont = helpers.fontString(fontSize, fontStyle, fontFamily);
16663			var lineHeight = helpers.options.toLineHeight(opts.lineHeight, fontSize);
16664			var offset = lineHeight / 2 + opts.padding;
16665			var rotation = 0;
16666			var top = me.top;
16667			var left = me.left;
16668			var bottom = me.bottom;
16669			var right = me.right;
16670			var maxWidth, titleX, titleY;
16671
16672			ctx.fillStyle = valueOrDefault(opts.fontColor, globalDefaults.defaultFontColor); // render in correct colour
16673			ctx.font = titleFont;
16674
16675			// Horizontal
16676			if (me.isHorizontal()) {
16677				titleX = left + ((right - left) / 2); // midpoint of the width
16678				titleY = top + offset;
16679				maxWidth = right - left;
16680			} else {
16681				titleX = opts.position === 'left' ? left + offset : right - offset;
16682				titleY = top + ((bottom - top) / 2);
16683				maxWidth = bottom - top;
16684				rotation = Math.PI * (opts.position === 'left' ? -0.5 : 0.5);
16685			}
16686
16687			ctx.save();
16688			ctx.translate(titleX, titleY);
16689			ctx.rotate(rotation);
16690			ctx.textAlign = 'center';
16691			ctx.textBaseline = 'middle';
16692
16693			var text = opts.text;
16694			if (helpers.isArray(text)) {
16695				var y = 0;
16696				for (var i = 0; i < text.length; ++i) {
16697					ctx.fillText(text[i], 0, y, maxWidth);
16698					y += lineHeight;
16699				}
16700			} else {
16701				ctx.fillText(text, 0, 0, maxWidth);
16702			}
16703
16704			ctx.restore();
16705		}
16706	}
16707});
16708
16709function createNewTitleBlockAndAttach(chart, titleOpts) {
16710	var title = new Title({
16711		ctx: chart.ctx,
16712		options: titleOpts,
16713		chart: chart
16714	});
16715
16716	layouts.configure(chart, title, titleOpts);
16717	layouts.addBox(chart, title);
16718	chart.titleBlock = title;
16719}
16720
16721module.exports = {
16722	id: 'title',
16723
16724	/**
16725	 * Backward compatibility: since 2.1.5, the title is registered as a plugin, making
16726	 * Chart.Title obsolete. To avoid a breaking change, we export the Title as part of
16727	 * the plugin, which one will be re-exposed in the chart.js file.
16728	 * https://github.com/chartjs/Chart.js/pull/2640
16729	 * @private
16730	 */
16731	_element: Title,
16732
16733	beforeInit: function(chart) {
16734		var titleOpts = chart.options.title;
16735
16736		if (titleOpts) {
16737			createNewTitleBlockAndAttach(chart, titleOpts);
16738		}
16739	},
16740
16741	beforeUpdate: function(chart) {
16742		var titleOpts = chart.options.title;
16743		var titleBlock = chart.titleBlock;
16744
16745		if (titleOpts) {
16746			helpers.mergeIf(titleOpts, defaults.global.title);
16747
16748			if (titleBlock) {
16749				layouts.configure(chart, titleBlock, titleOpts);
16750				titleBlock.options = titleOpts;
16751			} else {
16752				createNewTitleBlockAndAttach(chart, titleOpts);
16753			}
16754		} else if (titleBlock) {
16755			layouts.removeBox(chart, titleBlock);
16756			delete chart.titleBlock;
16757		}
16758	}
16759};
16760
16761},{"26":26,"27":27,"31":31,"46":46}],54:[function(require,module,exports){
16762'use strict';
16763
16764var Scale = require(33);
16765var scaleService = require(34);
16766
16767module.exports = function() {
16768
16769	// Default config for a category scale
16770	var defaultConfig = {
16771		position: 'bottom'
16772	};
16773
16774	var DatasetScale = Scale.extend({
16775		/**
16776		* Internal function to get the correct labels. If data.xLabels or data.yLabels are defined, use those
16777		* else fall back to data.labels
16778		* @private
16779		*/
16780		getLabels: function() {
16781			var data = this.chart.data;
16782			return this.options.labels || (this.isHorizontal() ? data.xLabels : data.yLabels) || data.labels;
16783		},
16784
16785		determineDataLimits: function() {
16786			var me = this;
16787			var labels = me.getLabels();
16788			me.minIndex = 0;
16789			me.maxIndex = labels.length - 1;
16790			var findIndex;
16791
16792			if (me.options.ticks.min !== undefined) {
16793				// user specified min value
16794				findIndex = labels.indexOf(me.options.ticks.min);
16795				me.minIndex = findIndex !== -1 ? findIndex : me.minIndex;
16796			}
16797
16798			if (me.options.ticks.max !== undefined) {
16799				// user specified max value
16800				findIndex = labels.indexOf(me.options.ticks.max);
16801				me.maxIndex = findIndex !== -1 ? findIndex : me.maxIndex;
16802			}
16803
16804			me.min = labels[me.minIndex];
16805			me.max = labels[me.maxIndex];
16806		},
16807
16808		buildTicks: function() {
16809			var me = this;
16810			var labels = me.getLabels();
16811			// If we are viewing some subset of labels, slice the original array
16812			me.ticks = (me.minIndex === 0 && me.maxIndex === labels.length - 1) ? labels : labels.slice(me.minIndex, me.maxIndex + 1);
16813		},
16814
16815		getLabelForIndex: function(index, datasetIndex) {
16816			var me = this;
16817			var data = me.chart.data;
16818			var isHorizontal = me.isHorizontal();
16819
16820			if (data.yLabels && !isHorizontal) {
16821				return me.getRightValue(data.datasets[datasetIndex].data[index]);
16822			}
16823			return me.ticks[index - me.minIndex];
16824		},
16825
16826		// Used to get data value locations.  Value can either be an index or a numerical value
16827		getPixelForValue: function(value, index) {
16828			var me = this;
16829			var offset = me.options.offset;
16830			// 1 is added because we need the length but we have the indexes
16831			var offsetAmt = Math.max((me.maxIndex + 1 - me.minIndex - (offset ? 0 : 1)), 1);
16832
16833			// If value is a data object, then index is the index in the data array,
16834			// not the index of the scale. We need to change that.
16835			var valueCategory;
16836			if (value !== undefined && value !== null) {
16837				valueCategory = me.isHorizontal() ? value.x : value.y;
16838			}
16839			if (valueCategory !== undefined || (value !== undefined && isNaN(index))) {
16840				var labels = me.getLabels();
16841				value = valueCategory || value;
16842				var idx = labels.indexOf(value);
16843				index = idx !== -1 ? idx : index;
16844			}
16845
16846			if (me.isHorizontal()) {
16847				var valueWidth = me.width / offsetAmt;
16848				var widthOffset = (valueWidth * (index - me.minIndex));
16849
16850				if (offset) {
16851					widthOffset += (valueWidth / 2);
16852				}
16853
16854				return me.left + Math.round(widthOffset);
16855			}
16856			var valueHeight = me.height / offsetAmt;
16857			var heightOffset = (valueHeight * (index - me.minIndex));
16858
16859			if (offset) {
16860				heightOffset += (valueHeight / 2);
16861			}
16862
16863			return me.top + Math.round(heightOffset);
16864		},
16865		getPixelForTick: function(index) {
16866			return this.getPixelForValue(this.ticks[index], index + this.minIndex, null);
16867		},
16868		getValueForPixel: function(pixel) {
16869			var me = this;
16870			var offset = me.options.offset;
16871			var value;
16872			var offsetAmt = Math.max((me._ticks.length - (offset ? 0 : 1)), 1);
16873			var horz = me.isHorizontal();
16874			var valueDimension = (horz ? me.width : me.height) / offsetAmt;
16875
16876			pixel -= horz ? me.left : me.top;
16877
16878			if (offset) {
16879				pixel -= (valueDimension / 2);
16880			}
16881
16882			if (pixel <= 0) {
16883				value = 0;
16884			} else {
16885				value = Math.round(pixel / valueDimension);
16886			}
16887
16888			return value + me.minIndex;
16889		},
16890		getBasePixel: function() {
16891			return this.bottom;
16892		}
16893	});
16894
16895	scaleService.registerScaleType('category', DatasetScale, defaultConfig);
16896};
16897
16898},{"33":33,"34":34}],55:[function(require,module,exports){
16899'use strict';
16900
16901var defaults = require(26);
16902var helpers = require(46);
16903var scaleService = require(34);
16904var Ticks = require(35);
16905
16906module.exports = function(Chart) {
16907
16908	var defaultConfig = {
16909		position: 'left',
16910		ticks: {
16911			callback: Ticks.formatters.linear
16912		}
16913	};
16914
16915	var LinearScale = Chart.LinearScaleBase.extend({
16916
16917		determineDataLimits: function() {
16918			var me = this;
16919			var opts = me.options;
16920			var chart = me.chart;
16921			var data = chart.data;
16922			var datasets = data.datasets;
16923			var isHorizontal = me.isHorizontal();
16924			var DEFAULT_MIN = 0;
16925			var DEFAULT_MAX = 1;
16926
16927			function IDMatches(meta) {
16928				return isHorizontal ? meta.xAxisID === me.id : meta.yAxisID === me.id;
16929			}
16930
16931			// First Calculate the range
16932			me.min = null;
16933			me.max = null;
16934
16935			var hasStacks = opts.stacked;
16936			if (hasStacks === undefined) {
16937				helpers.each(datasets, function(dataset, datasetIndex) {
16938					if (hasStacks) {
16939						return;
16940					}
16941
16942					var meta = chart.getDatasetMeta(datasetIndex);
16943					if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta) &&
16944						meta.stack !== undefined) {
16945						hasStacks = true;
16946					}
16947				});
16948			}
16949
16950			if (opts.stacked || hasStacks) {
16951				var valuesPerStack = {};
16952
16953				helpers.each(datasets, function(dataset, datasetIndex) {
16954					var meta = chart.getDatasetMeta(datasetIndex);
16955					var key = [
16956						meta.type,
16957						// we have a separate stack for stack=undefined datasets when the opts.stacked is undefined
16958						((opts.stacked === undefined && meta.stack === undefined) ? datasetIndex : ''),
16959						meta.stack
16960					].join('.');
16961
16962					if (valuesPerStack[key] === undefined) {
16963						valuesPerStack[key] = {
16964							positiveValues: [],
16965							negativeValues: []
16966						};
16967					}
16968
16969					// Store these per type
16970					var positiveValues = valuesPerStack[key].positiveValues;
16971					var negativeValues = valuesPerStack[key].negativeValues;
16972
16973					if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
16974						helpers.each(dataset.data, function(rawValue, index) {
16975							var value = +me.getRightValue(rawValue);
16976							if (isNaN(value) || meta.data[index].hidden) {
16977								return;
16978							}
16979
16980							positiveValues[index] = positiveValues[index] || 0;
16981							negativeValues[index] = negativeValues[index] || 0;
16982
16983							if (opts.relativePoints) {
16984								positiveValues[index] = 100;
16985							} else if (value < 0) {
16986								negativeValues[index] += value;
16987							} else {
16988								positiveValues[index] += value;
16989							}
16990						});
16991					}
16992				});
16993
16994				helpers.each(valuesPerStack, function(valuesForType) {
16995					var values = valuesForType.positiveValues.concat(valuesForType.negativeValues);
16996					var minVal = helpers.min(values);
16997					var maxVal = helpers.max(values);
16998					me.min = me.min === null ? minVal : Math.min(me.min, minVal);
16999					me.max = me.max === null ? maxVal : Math.max(me.max, maxVal);
17000				});
17001
17002			} else {
17003				helpers.each(datasets, function(dataset, datasetIndex) {
17004					var meta = chart.getDatasetMeta(datasetIndex);
17005					if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
17006						helpers.each(dataset.data, function(rawValue, index) {
17007							var value = +me.getRightValue(rawValue);
17008							if (isNaN(value) || meta.data[index].hidden) {
17009								return;
17010							}
17011
17012							if (me.min === null) {
17013								me.min = value;
17014							} else if (value < me.min) {
17015								me.min = value;
17016							}
17017
17018							if (me.max === null) {
17019								me.max = value;
17020							} else if (value > me.max) {
17021								me.max = value;
17022							}
17023						});
17024					}
17025				});
17026			}
17027
17028			me.min = isFinite(me.min) && !isNaN(me.min) ? me.min : DEFAULT_MIN;
17029			me.max = isFinite(me.max) && !isNaN(me.max) ? me.max : DEFAULT_MAX;
17030
17031			// Common base implementation to handle ticks.min, ticks.max, ticks.beginAtZero
17032			this.handleTickRangeOptions();
17033		},
17034		getTickLimit: function() {
17035			var maxTicks;
17036			var me = this;
17037			var tickOpts = me.options.ticks;
17038
17039			if (me.isHorizontal()) {
17040				maxTicks = Math.min(tickOpts.maxTicksLimit ? tickOpts.maxTicksLimit : 11, Math.ceil(me.width / 50));
17041			} else {
17042				// The factor of 2 used to scale the font size has been experimentally determined.
17043				var tickFontSize = helpers.valueOrDefault(tickOpts.fontSize, defaults.global.defaultFontSize);
17044				maxTicks = Math.min(tickOpts.maxTicksLimit ? tickOpts.maxTicksLimit : 11, Math.ceil(me.height / (2 * tickFontSize)));
17045			}
17046
17047			return maxTicks;
17048		},
17049		// Called after the ticks are built. We need
17050		handleDirectionalChanges: function() {
17051			if (!this.isHorizontal()) {
17052				// We are in a vertical orientation. The top value is the highest. So reverse the array
17053				this.ticks.reverse();
17054			}
17055		},
17056		getLabelForIndex: function(index, datasetIndex) {
17057			return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
17058		},
17059		// Utils
17060		getPixelForValue: function(value) {
17061			// This must be called after fit has been run so that
17062			// this.left, this.top, this.right, and this.bottom have been defined
17063			var me = this;
17064			var start = me.start;
17065
17066			var rightValue = +me.getRightValue(value);
17067			var pixel;
17068			var range = me.end - start;
17069
17070			if (me.isHorizontal()) {
17071				pixel = me.left + (me.width / range * (rightValue - start));
17072			} else {
17073				pixel = me.bottom - (me.height / range * (rightValue - start));
17074			}
17075			return pixel;
17076		},
17077		getValueForPixel: function(pixel) {
17078			var me = this;
17079			var isHorizontal = me.isHorizontal();
17080			var innerDimension = isHorizontal ? me.width : me.height;
17081			var offset = (isHorizontal ? pixel - me.left : me.bottom - pixel) / innerDimension;
17082			return me.start + ((me.end - me.start) * offset);
17083		},
17084		getPixelForTick: function(index) {
17085			return this.getPixelForValue(this.ticksAsNumbers[index]);
17086		}
17087	});
17088
17089	scaleService.registerScaleType('linear', LinearScale, defaultConfig);
17090};
17091
17092},{"26":26,"34":34,"35":35,"46":46}],56:[function(require,module,exports){
17093'use strict';
17094
17095var helpers = require(46);
17096var Scale = require(33);
17097
17098/**
17099 * Generate a set of linear ticks
17100 * @param generationOptions the options used to generate the ticks
17101 * @param dataRange the range of the data
17102 * @returns {Array<Number>} array of tick values
17103 */
17104function generateTicks(generationOptions, dataRange) {
17105	var ticks = [];
17106	// To get a "nice" value for the tick spacing, we will use the appropriately named
17107	// "nice number" algorithm. See http://stackoverflow.com/questions/8506881/nice-label-algorithm-for-charts-with-minimum-ticks
17108	// for details.
17109
17110	var factor;
17111	var precision;
17112	var spacing;
17113
17114	if (generationOptions.stepSize && generationOptions.stepSize > 0) {
17115		spacing = generationOptions.stepSize;
17116	} else {
17117		var niceRange = helpers.niceNum(dataRange.max - dataRange.min, false);
17118		spacing = helpers.niceNum(niceRange / (generationOptions.maxTicks - 1), true);
17119
17120		precision = generationOptions.precision;
17121		if (precision !== undefined) {
17122			// If the user specified a precision, round to that number of decimal places
17123			factor = Math.pow(10, precision);
17124			spacing = Math.ceil(spacing * factor) / factor;
17125		}
17126	}
17127	var niceMin = Math.floor(dataRange.min / spacing) * spacing;
17128	var niceMax = Math.ceil(dataRange.max / spacing) * spacing;
17129
17130	// If min, max and stepSize is set and they make an evenly spaced scale use it.
17131	if (!helpers.isNullOrUndef(generationOptions.min) && !helpers.isNullOrUndef(generationOptions.max) && generationOptions.stepSize) {
17132		// If very close to our whole number, use it.
17133		if (helpers.almostWhole((generationOptions.max - generationOptions.min) / generationOptions.stepSize, spacing / 1000)) {
17134			niceMin = generationOptions.min;
17135			niceMax = generationOptions.max;
17136		}
17137	}
17138
17139	var numSpaces = (niceMax - niceMin) / spacing;
17140	// If very close to our rounded value, use it.
17141	if (helpers.almostEquals(numSpaces, Math.round(numSpaces), spacing / 1000)) {
17142		numSpaces = Math.round(numSpaces);
17143	} else {
17144		numSpaces = Math.ceil(numSpaces);
17145	}
17146
17147	precision = 1;
17148	if (spacing < 1) {
17149		precision = Math.pow(10, 1 - Math.floor(helpers.log10(spacing)));
17150		niceMin = Math.round(niceMin * precision) / precision;
17151		niceMax = Math.round(niceMax * precision) / precision;
17152	}
17153	ticks.push(generationOptions.min !== undefined ? generationOptions.min : niceMin);
17154	for (var j = 1; j < numSpaces; ++j) {
17155		ticks.push(Math.round((niceMin + j * spacing) * precision) / precision);
17156	}
17157	ticks.push(generationOptions.max !== undefined ? generationOptions.max : niceMax);
17158
17159	return ticks;
17160}
17161
17162module.exports = function(Chart) {
17163
17164	var noop = helpers.noop;
17165
17166	Chart.LinearScaleBase = Scale.extend({
17167		getRightValue: function(value) {
17168			if (typeof value === 'string') {
17169				return +value;
17170			}
17171			return Scale.prototype.getRightValue.call(this, value);
17172		},
17173
17174		handleTickRangeOptions: function() {
17175			var me = this;
17176			var opts = me.options;
17177			var tickOpts = opts.ticks;
17178
17179			// If we are forcing it to begin at 0, but 0 will already be rendered on the chart,
17180			// do nothing since that would make the chart weird. If the user really wants a weird chart
17181			// axis, they can manually override it
17182			if (tickOpts.beginAtZero) {
17183				var minSign = helpers.sign(me.min);
17184				var maxSign = helpers.sign(me.max);
17185
17186				if (minSign < 0 && maxSign < 0) {
17187					// move the top up to 0
17188					me.max = 0;
17189				} else if (minSign > 0 && maxSign > 0) {
17190					// move the bottom down to 0
17191					me.min = 0;
17192				}
17193			}
17194
17195			var setMin = tickOpts.min !== undefined || tickOpts.suggestedMin !== undefined;
17196			var setMax = tickOpts.max !== undefined || tickOpts.suggestedMax !== undefined;
17197
17198			if (tickOpts.min !== undefined) {
17199				me.min = tickOpts.min;
17200			} else if (tickOpts.suggestedMin !== undefined) {
17201				if (me.min === null) {
17202					me.min = tickOpts.suggestedMin;
17203				} else {
17204					me.min = Math.min(me.min, tickOpts.suggestedMin);
17205				}
17206			}
17207
17208			if (tickOpts.max !== undefined) {
17209				me.max = tickOpts.max;
17210			} else if (tickOpts.suggestedMax !== undefined) {
17211				if (me.max === null) {
17212					me.max = tickOpts.suggestedMax;
17213				} else {
17214					me.max = Math.max(me.max, tickOpts.suggestedMax);
17215				}
17216			}
17217
17218			if (setMin !== setMax) {
17219				// We set the min or the max but not both.
17220				// So ensure that our range is good
17221				// Inverted or 0 length range can happen when
17222				// ticks.min is set, and no datasets are visible
17223				if (me.min >= me.max) {
17224					if (setMin) {
17225						me.max = me.min + 1;
17226					} else {
17227						me.min = me.max - 1;
17228					}
17229				}
17230			}
17231
17232			if (me.min === me.max) {
17233				me.max++;
17234
17235				if (!tickOpts.beginAtZero) {
17236					me.min--;
17237				}
17238			}
17239		},
17240		getTickLimit: noop,
17241		handleDirectionalChanges: noop,
17242
17243		buildTicks: function() {
17244			var me = this;
17245			var opts = me.options;
17246			var tickOpts = opts.ticks;
17247
17248			// Figure out what the max number of ticks we can support it is based on the size of
17249			// the axis area. For now, we say that the minimum tick spacing in pixels must be 50
17250			// We also limit the maximum number of ticks to 11 which gives a nice 10 squares on
17251			// the graph. Make sure we always have at least 2 ticks
17252			var maxTicks = me.getTickLimit();
17253			maxTicks = Math.max(2, maxTicks);
17254
17255			var numericGeneratorOptions = {
17256				maxTicks: maxTicks,
17257				min: tickOpts.min,
17258				max: tickOpts.max,
17259				precision: tickOpts.precision,
17260				stepSize: helpers.valueOrDefault(tickOpts.fixedStepSize, tickOpts.stepSize)
17261			};
17262			var ticks = me.ticks = generateTicks(numericGeneratorOptions, me);
17263
17264			me.handleDirectionalChanges();
17265
17266			// At this point, we need to update our max and min given the tick values since we have expanded the
17267			// range of the scale
17268			me.max = helpers.max(ticks);
17269			me.min = helpers.min(ticks);
17270
17271			if (tickOpts.reverse) {
17272				ticks.reverse();
17273
17274				me.start = me.max;
17275				me.end = me.min;
17276			} else {
17277				me.start = me.min;
17278				me.end = me.max;
17279			}
17280		},
17281		convertTicksToLabels: function() {
17282			var me = this;
17283			me.ticksAsNumbers = me.ticks.slice();
17284			me.zeroLineIndex = me.ticks.indexOf(0);
17285
17286			Scale.prototype.convertTicksToLabels.call(me);
17287		}
17288	});
17289};
17290
17291},{"33":33,"46":46}],57:[function(require,module,exports){
17292'use strict';
17293
17294var helpers = require(46);
17295var Scale = require(33);
17296var scaleService = require(34);
17297var Ticks = require(35);
17298
17299/**
17300 * Generate a set of logarithmic ticks
17301 * @param generationOptions the options used to generate the ticks
17302 * @param dataRange the range of the data
17303 * @returns {Array<Number>} array of tick values
17304 */
17305function generateTicks(generationOptions, dataRange) {
17306	var ticks = [];
17307	var valueOrDefault = helpers.valueOrDefault;
17308
17309	// Figure out what the max number of ticks we can support it is based on the size of
17310	// the axis area. For now, we say that the minimum tick spacing in pixels must be 50
17311	// We also limit the maximum number of ticks to 11 which gives a nice 10 squares on
17312	// the graph
17313	var tickVal = valueOrDefault(generationOptions.min, Math.pow(10, Math.floor(helpers.log10(dataRange.min))));
17314
17315	var endExp = Math.floor(helpers.log10(dataRange.max));
17316	var endSignificand = Math.ceil(dataRange.max / Math.pow(10, endExp));
17317	var exp, significand;
17318
17319	if (tickVal === 0) {
17320		exp = Math.floor(helpers.log10(dataRange.minNotZero));
17321		significand = Math.floor(dataRange.minNotZero / Math.pow(10, exp));
17322
17323		ticks.push(tickVal);
17324		tickVal = significand * Math.pow(10, exp);
17325	} else {
17326		exp = Math.floor(helpers.log10(tickVal));
17327		significand = Math.floor(tickVal / Math.pow(10, exp));
17328	}
17329	var precision = exp < 0 ? Math.pow(10, Math.abs(exp)) : 1;
17330
17331	do {
17332		ticks.push(tickVal);
17333
17334		++significand;
17335		if (significand === 10) {
17336			significand = 1;
17337			++exp;
17338			precision = exp >= 0 ? 1 : precision;
17339		}
17340
17341		tickVal = Math.round(significand * Math.pow(10, exp) * precision) / precision;
17342	} while (exp < endExp || (exp === endExp && significand < endSignificand));
17343
17344	var lastTick = valueOrDefault(generationOptions.max, tickVal);
17345	ticks.push(lastTick);
17346
17347	return ticks;
17348}
17349
17350
17351module.exports = function(Chart) {
17352
17353	var defaultConfig = {
17354		position: 'left',
17355
17356		// label settings
17357		ticks: {
17358			callback: Ticks.formatters.logarithmic
17359		}
17360	};
17361
17362	var LogarithmicScale = Scale.extend({
17363		determineDataLimits: function() {
17364			var me = this;
17365			var opts = me.options;
17366			var chart = me.chart;
17367			var data = chart.data;
17368			var datasets = data.datasets;
17369			var isHorizontal = me.isHorizontal();
17370			function IDMatches(meta) {
17371				return isHorizontal ? meta.xAxisID === me.id : meta.yAxisID === me.id;
17372			}
17373
17374			// Calculate Range
17375			me.min = null;
17376			me.max = null;
17377			me.minNotZero = null;
17378
17379			var hasStacks = opts.stacked;
17380			if (hasStacks === undefined) {
17381				helpers.each(datasets, function(dataset, datasetIndex) {
17382					if (hasStacks) {
17383						return;
17384					}
17385
17386					var meta = chart.getDatasetMeta(datasetIndex);
17387					if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta) &&
17388						meta.stack !== undefined) {
17389						hasStacks = true;
17390					}
17391				});
17392			}
17393
17394			if (opts.stacked || hasStacks) {
17395				var valuesPerStack = {};
17396
17397				helpers.each(datasets, function(dataset, datasetIndex) {
17398					var meta = chart.getDatasetMeta(datasetIndex);
17399					var key = [
17400						meta.type,
17401						// we have a separate stack for stack=undefined datasets when the opts.stacked is undefined
17402						((opts.stacked === undefined && meta.stack === undefined) ? datasetIndex : ''),
17403						meta.stack
17404					].join('.');
17405
17406					if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
17407						if (valuesPerStack[key] === undefined) {
17408							valuesPerStack[key] = [];
17409						}
17410
17411						helpers.each(dataset.data, function(rawValue, index) {
17412							var values = valuesPerStack[key];
17413							var value = +me.getRightValue(rawValue);
17414							// invalid, hidden and negative values are ignored
17415							if (isNaN(value) || meta.data[index].hidden || value < 0) {
17416								return;
17417							}
17418							values[index] = values[index] || 0;
17419							values[index] += value;
17420						});
17421					}
17422				});
17423
17424				helpers.each(valuesPerStack, function(valuesForType) {
17425					if (valuesForType.length > 0) {
17426						var minVal = helpers.min(valuesForType);
17427						var maxVal = helpers.max(valuesForType);
17428						me.min = me.min === null ? minVal : Math.min(me.min, minVal);
17429						me.max = me.max === null ? maxVal : Math.max(me.max, maxVal);
17430					}
17431				});
17432
17433			} else {
17434				helpers.each(datasets, function(dataset, datasetIndex) {
17435					var meta = chart.getDatasetMeta(datasetIndex);
17436					if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
17437						helpers.each(dataset.data, function(rawValue, index) {
17438							var value = +me.getRightValue(rawValue);
17439							// invalid, hidden and negative values are ignored
17440							if (isNaN(value) || meta.data[index].hidden || value < 0) {
17441								return;
17442							}
17443
17444							if (me.min === null) {
17445								me.min = value;
17446							} else if (value < me.min) {
17447								me.min = value;
17448							}
17449
17450							if (me.max === null) {
17451								me.max = value;
17452							} else if (value > me.max) {
17453								me.max = value;
17454							}
17455
17456							if (value !== 0 && (me.minNotZero === null || value < me.minNotZero)) {
17457								me.minNotZero = value;
17458							}
17459						});
17460					}
17461				});
17462			}
17463
17464			// Common base implementation to handle ticks.min, ticks.max
17465			this.handleTickRangeOptions();
17466		},
17467		handleTickRangeOptions: function() {
17468			var me = this;
17469			var opts = me.options;
17470			var tickOpts = opts.ticks;
17471			var valueOrDefault = helpers.valueOrDefault;
17472			var DEFAULT_MIN = 1;
17473			var DEFAULT_MAX = 10;
17474
17475			me.min = valueOrDefault(tickOpts.min, me.min);
17476			me.max = valueOrDefault(tickOpts.max, me.max);
17477
17478			if (me.min === me.max) {
17479				if (me.min !== 0 && me.min !== null) {
17480					me.min = Math.pow(10, Math.floor(helpers.log10(me.min)) - 1);
17481					me.max = Math.pow(10, Math.floor(helpers.log10(me.max)) + 1);
17482				} else {
17483					me.min = DEFAULT_MIN;
17484					me.max = DEFAULT_MAX;
17485				}
17486			}
17487			if (me.min === null) {
17488				me.min = Math.pow(10, Math.floor(helpers.log10(me.max)) - 1);
17489			}
17490			if (me.max === null) {
17491				me.max = me.min !== 0
17492					? Math.pow(10, Math.floor(helpers.log10(me.min)) + 1)
17493					: DEFAULT_MAX;
17494			}
17495			if (me.minNotZero === null) {
17496				if (me.min > 0) {
17497					me.minNotZero = me.min;
17498				} else if (me.max < 1) {
17499					me.minNotZero = Math.pow(10, Math.floor(helpers.log10(me.max)));
17500				} else {
17501					me.minNotZero = DEFAULT_MIN;
17502				}
17503			}
17504		},
17505		buildTicks: function() {
17506			var me = this;
17507			var opts = me.options;
17508			var tickOpts = opts.ticks;
17509			var reverse = !me.isHorizontal();
17510
17511			var generationOptions = {
17512				min: tickOpts.min,
17513				max: tickOpts.max
17514			};
17515			var ticks = me.ticks = generateTicks(generationOptions, me);
17516
17517			// At this point, we need to update our max and min given the tick values since we have expanded the
17518			// range of the scale
17519			me.max = helpers.max(ticks);
17520			me.min = helpers.min(ticks);
17521
17522			if (tickOpts.reverse) {
17523				reverse = !reverse;
17524				me.start = me.max;
17525				me.end = me.min;
17526			} else {
17527				me.start = me.min;
17528				me.end = me.max;
17529			}
17530			if (reverse) {
17531				ticks.reverse();
17532			}
17533		},
17534		convertTicksToLabels: function() {
17535			this.tickValues = this.ticks.slice();
17536
17537			Scale.prototype.convertTicksToLabels.call(this);
17538		},
17539		// Get the correct tooltip label
17540		getLabelForIndex: function(index, datasetIndex) {
17541			return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
17542		},
17543		getPixelForTick: function(index) {
17544			return this.getPixelForValue(this.tickValues[index]);
17545		},
17546		/**
17547		 * Returns the value of the first tick.
17548		 * @param {Number} value - The minimum not zero value.
17549		 * @return {Number} The first tick value.
17550		 * @private
17551		 */
17552		_getFirstTickValue: function(value) {
17553			var exp = Math.floor(helpers.log10(value));
17554			var significand = Math.floor(value / Math.pow(10, exp));
17555
17556			return significand * Math.pow(10, exp);
17557		},
17558		getPixelForValue: function(value) {
17559			var me = this;
17560			var reverse = me.options.ticks.reverse;
17561			var log10 = helpers.log10;
17562			var firstTickValue = me._getFirstTickValue(me.minNotZero);
17563			var offset = 0;
17564			var innerDimension, pixel, start, end, sign;
17565
17566			value = +me.getRightValue(value);
17567			if (reverse) {
17568				start = me.end;
17569				end = me.start;
17570				sign = -1;
17571			} else {
17572				start = me.start;
17573				end = me.end;
17574				sign = 1;
17575			}
17576			if (me.isHorizontal()) {
17577				innerDimension = me.width;
17578				pixel = reverse ? me.right : me.left;
17579			} else {
17580				innerDimension = me.height;
17581				sign *= -1; // invert, since the upper-left corner of the canvas is at pixel (0, 0)
17582				pixel = reverse ? me.top : me.bottom;
17583			}
17584			if (value !== start) {
17585				if (start === 0) { // include zero tick
17586					offset = helpers.getValueOrDefault(
17587						me.options.ticks.fontSize,
17588						Chart.defaults.global.defaultFontSize
17589					);
17590					innerDimension -= offset;
17591					start = firstTickValue;
17592				}
17593				if (value !== 0) {
17594					offset += innerDimension / (log10(end) - log10(start)) * (log10(value) - log10(start));
17595				}
17596				pixel += sign * offset;
17597			}
17598			return pixel;
17599		},
17600		getValueForPixel: function(pixel) {
17601			var me = this;
17602			var reverse = me.options.ticks.reverse;
17603			var log10 = helpers.log10;
17604			var firstTickValue = me._getFirstTickValue(me.minNotZero);
17605			var innerDimension, start, end, value;
17606
17607			if (reverse) {
17608				start = me.end;
17609				end = me.start;
17610			} else {
17611				start = me.start;
17612				end = me.end;
17613			}
17614			if (me.isHorizontal()) {
17615				innerDimension = me.width;
17616				value = reverse ? me.right - pixel : pixel - me.left;
17617			} else {
17618				innerDimension = me.height;
17619				value = reverse ? pixel - me.top : me.bottom - pixel;
17620			}
17621			if (value !== start) {
17622				if (start === 0) { // include zero tick
17623					var offset = helpers.getValueOrDefault(
17624						me.options.ticks.fontSize,
17625						Chart.defaults.global.defaultFontSize
17626					);
17627					value -= offset;
17628					innerDimension -= offset;
17629					start = firstTickValue;
17630				}
17631				value *= log10(end) - log10(start);
17632				value /= innerDimension;
17633				value = Math.pow(10, log10(start) + value);
17634			}
17635			return value;
17636		}
17637	});
17638
17639	scaleService.registerScaleType('logarithmic', LogarithmicScale, defaultConfig);
17640};
17641
17642},{"33":33,"34":34,"35":35,"46":46}],58:[function(require,module,exports){
17643'use strict';
17644
17645var defaults = require(26);
17646var helpers = require(46);
17647var scaleService = require(34);
17648var Ticks = require(35);
17649
17650module.exports = function(Chart) {
17651
17652	var globalDefaults = defaults.global;
17653
17654	var defaultConfig = {
17655		display: true,
17656
17657		// Boolean - Whether to animate scaling the chart from the centre
17658		animate: true,
17659		position: 'chartArea',
17660
17661		angleLines: {
17662			display: true,
17663			color: 'rgba(0, 0, 0, 0.1)',
17664			lineWidth: 1
17665		},
17666
17667		gridLines: {
17668			circular: false
17669		},
17670
17671		// label settings
17672		ticks: {
17673			// Boolean - Show a backdrop to the scale label
17674			showLabelBackdrop: true,
17675
17676			// String - The colour of the label backdrop
17677			backdropColor: 'rgba(255,255,255,0.75)',
17678
17679			// Number - The backdrop padding above & below the label in pixels
17680			backdropPaddingY: 2,
17681
17682			// Number - The backdrop padding to the side of the label in pixels
17683			backdropPaddingX: 2,
17684
17685			callback: Ticks.formatters.linear
17686		},
17687
17688		pointLabels: {
17689			// Boolean - if true, show point labels
17690			display: true,
17691
17692			// Number - Point label font size in pixels
17693			fontSize: 10,
17694
17695			// Function - Used to convert point labels
17696			callback: function(label) {
17697				return label;
17698			}
17699		}
17700	};
17701
17702	function getValueCount(scale) {
17703		var opts = scale.options;
17704		return opts.angleLines.display || opts.pointLabels.display ? scale.chart.data.labels.length : 0;
17705	}
17706
17707	function getPointLabelFontOptions(scale) {
17708		var pointLabelOptions = scale.options.pointLabels;
17709		var fontSize = helpers.valueOrDefault(pointLabelOptions.fontSize, globalDefaults.defaultFontSize);
17710		var fontStyle = helpers.valueOrDefault(pointLabelOptions.fontStyle, globalDefaults.defaultFontStyle);
17711		var fontFamily = helpers.valueOrDefault(pointLabelOptions.fontFamily, globalDefaults.defaultFontFamily);
17712		var font = helpers.fontString(fontSize, fontStyle, fontFamily);
17713
17714		return {
17715			size: fontSize,
17716			style: fontStyle,
17717			family: fontFamily,
17718			font: font
17719		};
17720	}
17721
17722	function measureLabelSize(ctx, fontSize, label) {
17723		if (helpers.isArray(label)) {
17724			return {
17725				w: helpers.longestText(ctx, ctx.font, label),
17726				h: (label.length * fontSize) + ((label.length - 1) * 1.5 * fontSize)
17727			};
17728		}
17729
17730		return {
17731			w: ctx.measureText(label).width,
17732			h: fontSize
17733		};
17734	}
17735
17736	function determineLimits(angle, pos, size, min, max) {
17737		if (angle === min || angle === max) {
17738			return {
17739				start: pos - (size / 2),
17740				end: pos + (size / 2)
17741			};
17742		} else if (angle < min || angle > max) {
17743			return {
17744				start: pos - size - 5,
17745				end: pos
17746			};
17747		}
17748
17749		return {
17750			start: pos,
17751			end: pos + size + 5
17752		};
17753	}
17754
17755	/**
17756	 * Helper function to fit a radial linear scale with point labels
17757	 */
17758	function fitWithPointLabels(scale) {
17759		/*
17760		 * Right, this is really confusing and there is a lot of maths going on here
17761		 * The gist of the problem is here: https://gist.github.com/nnnick/696cc9c55f4b0beb8fe9
17762		 *
17763		 * Reaction: https://dl.dropboxusercontent.com/u/34601363/toomuchscience.gif
17764		 *
17765		 * Solution:
17766		 *
17767		 * We assume the radius of the polygon is half the size of the canvas at first
17768		 * at each index we check if the text overlaps.
17769		 *
17770		 * Where it does, we store that angle and that index.
17771		 *
17772		 * After finding the largest index and angle we calculate how much we need to remove
17773		 * from the shape radius to move the point inwards by that x.
17774		 *
17775		 * We average the left and right distances to get the maximum shape radius that can fit in the box
17776		 * along with labels.
17777		 *
17778		 * Once we have that, we can find the centre point for the chart, by taking the x text protrusion
17779		 * on each side, removing that from the size, halving it and adding the left x protrusion width.
17780		 *
17781		 * This will mean we have a shape fitted to the canvas, as large as it can be with the labels
17782		 * and position it in the most space efficient manner
17783		 *
17784		 * https://dl.dropboxusercontent.com/u/34601363/yeahscience.gif
17785		 */
17786
17787		var plFont = getPointLabelFontOptions(scale);
17788
17789		// Get maximum radius of the polygon. Either half the height (minus the text width) or half the width.
17790		// Use this to calculate the offset + change. - Make sure L/R protrusion is at least 0 to stop issues with centre points
17791		var largestPossibleRadius = Math.min(scale.height / 2, scale.width / 2);
17792		var furthestLimits = {
17793			r: scale.width,
17794			l: 0,
17795			t: scale.height,
17796			b: 0
17797		};
17798		var furthestAngles = {};
17799		var i, textSize, pointPosition;
17800
17801		scale.ctx.font = plFont.font;
17802		scale._pointLabelSizes = [];
17803
17804		var valueCount = getValueCount(scale);
17805		for (i = 0; i < valueCount; i++) {
17806			pointPosition = scale.getPointPosition(i, largestPossibleRadius);
17807			textSize = measureLabelSize(scale.ctx, plFont.size, scale.pointLabels[i] || '');
17808			scale._pointLabelSizes[i] = textSize;
17809
17810			// Add quarter circle to make degree 0 mean top of circle
17811			var angleRadians = scale.getIndexAngle(i);
17812			var angle = helpers.toDegrees(angleRadians) % 360;
17813			var hLimits = determineLimits(angle, pointPosition.x, textSize.w, 0, 180);
17814			var vLimits = determineLimits(angle, pointPosition.y, textSize.h, 90, 270);
17815
17816			if (hLimits.start < furthestLimits.l) {
17817				furthestLimits.l = hLimits.start;
17818				furthestAngles.l = angleRadians;
17819			}
17820
17821			if (hLimits.end > furthestLimits.r) {
17822				furthestLimits.r = hLimits.end;
17823				furthestAngles.r = angleRadians;
17824			}
17825
17826			if (vLimits.start < furthestLimits.t) {
17827				furthestLimits.t = vLimits.start;
17828				furthestAngles.t = angleRadians;
17829			}
17830
17831			if (vLimits.end > furthestLimits.b) {
17832				furthestLimits.b = vLimits.end;
17833				furthestAngles.b = angleRadians;
17834			}
17835		}
17836
17837		scale.setReductions(largestPossibleRadius, furthestLimits, furthestAngles);
17838	}
17839
17840	/**
17841	 * Helper function to fit a radial linear scale with no point labels
17842	 */
17843	function fit(scale) {
17844		var largestPossibleRadius = Math.min(scale.height / 2, scale.width / 2);
17845		scale.drawingArea = Math.round(largestPossibleRadius);
17846		scale.setCenterPoint(0, 0, 0, 0);
17847	}
17848
17849	function getTextAlignForAngle(angle) {
17850		if (angle === 0 || angle === 180) {
17851			return 'center';
17852		} else if (angle < 180) {
17853			return 'left';
17854		}
17855
17856		return 'right';
17857	}
17858
17859	function fillText(ctx, text, position, fontSize) {
17860		if (helpers.isArray(text)) {
17861			var y = position.y;
17862			var spacing = 1.5 * fontSize;
17863
17864			for (var i = 0; i < text.length; ++i) {
17865				ctx.fillText(text[i], position.x, y);
17866				y += spacing;
17867			}
17868		} else {
17869			ctx.fillText(text, position.x, position.y);
17870		}
17871	}
17872
17873	function adjustPointPositionForLabelHeight(angle, textSize, position) {
17874		if (angle === 90 || angle === 270) {
17875			position.y -= (textSize.h / 2);
17876		} else if (angle > 270 || angle < 90) {
17877			position.y -= textSize.h;
17878		}
17879	}
17880
17881	function drawPointLabels(scale) {
17882		var ctx = scale.ctx;
17883		var opts = scale.options;
17884		var angleLineOpts = opts.angleLines;
17885		var pointLabelOpts = opts.pointLabels;
17886
17887		ctx.lineWidth = angleLineOpts.lineWidth;
17888		ctx.strokeStyle = angleLineOpts.color;
17889
17890		var outerDistance = scale.getDistanceFromCenterForValue(opts.ticks.reverse ? scale.min : scale.max);
17891
17892		// Point Label Font
17893		var plFont = getPointLabelFontOptions(scale);
17894
17895		ctx.textBaseline = 'top';
17896
17897		for (var i = getValueCount(scale) - 1; i >= 0; i--) {
17898			if (angleLineOpts.display) {
17899				var outerPosition = scale.getPointPosition(i, outerDistance);
17900				ctx.beginPath();
17901				ctx.moveTo(scale.xCenter, scale.yCenter);
17902				ctx.lineTo(outerPosition.x, outerPosition.y);
17903				ctx.stroke();
17904				ctx.closePath();
17905			}
17906
17907			if (pointLabelOpts.display) {
17908				// Extra 3px out for some label spacing
17909				var pointLabelPosition = scale.getPointPosition(i, outerDistance + 5);
17910
17911				// Keep this in loop since we may support array properties here
17912				var pointLabelFontColor = helpers.valueAtIndexOrDefault(pointLabelOpts.fontColor, i, globalDefaults.defaultFontColor);
17913				ctx.font = plFont.font;
17914				ctx.fillStyle = pointLabelFontColor;
17915
17916				var angleRadians = scale.getIndexAngle(i);
17917				var angle = helpers.toDegrees(angleRadians);
17918				ctx.textAlign = getTextAlignForAngle(angle);
17919				adjustPointPositionForLabelHeight(angle, scale._pointLabelSizes[i], pointLabelPosition);
17920				fillText(ctx, scale.pointLabels[i] || '', pointLabelPosition, plFont.size);
17921			}
17922		}
17923	}
17924
17925	function drawRadiusLine(scale, gridLineOpts, radius, index) {
17926		var ctx = scale.ctx;
17927		ctx.strokeStyle = helpers.valueAtIndexOrDefault(gridLineOpts.color, index - 1);
17928		ctx.lineWidth = helpers.valueAtIndexOrDefault(gridLineOpts.lineWidth, index - 1);
17929
17930		if (scale.options.gridLines.circular) {
17931			// Draw circular arcs between the points
17932			ctx.beginPath();
17933			ctx.arc(scale.xCenter, scale.yCenter, radius, 0, Math.PI * 2);
17934			ctx.closePath();
17935			ctx.stroke();
17936		} else {
17937			// Draw straight lines connecting each index
17938			var valueCount = getValueCount(scale);
17939
17940			if (valueCount === 0) {
17941				return;
17942			}
17943
17944			ctx.beginPath();
17945			var pointPosition = scale.getPointPosition(0, radius);
17946			ctx.moveTo(pointPosition.x, pointPosition.y);
17947
17948			for (var i = 1; i < valueCount; i++) {
17949				pointPosition = scale.getPointPosition(i, radius);
17950				ctx.lineTo(pointPosition.x, pointPosition.y);
17951			}
17952
17953			ctx.closePath();
17954			ctx.stroke();
17955		}
17956	}
17957
17958	function numberOrZero(param) {
17959		return helpers.isNumber(param) ? param : 0;
17960	}
17961
17962	var LinearRadialScale = Chart.LinearScaleBase.extend({
17963		setDimensions: function() {
17964			var me = this;
17965			var opts = me.options;
17966			var tickOpts = opts.ticks;
17967			// Set the unconstrained dimension before label rotation
17968			me.width = me.maxWidth;
17969			me.height = me.maxHeight;
17970			me.xCenter = Math.round(me.width / 2);
17971			me.yCenter = Math.round(me.height / 2);
17972
17973			var minSize = helpers.min([me.height, me.width]);
17974			var tickFontSize = helpers.valueOrDefault(tickOpts.fontSize, globalDefaults.defaultFontSize);
17975			me.drawingArea = opts.display ? (minSize / 2) - (tickFontSize / 2 + tickOpts.backdropPaddingY) : (minSize / 2);
17976		},
17977		determineDataLimits: function() {
17978			var me = this;
17979			var chart = me.chart;
17980			var min = Number.POSITIVE_INFINITY;
17981			var max = Number.NEGATIVE_INFINITY;
17982
17983			helpers.each(chart.data.datasets, function(dataset, datasetIndex) {
17984				if (chart.isDatasetVisible(datasetIndex)) {
17985					var meta = chart.getDatasetMeta(datasetIndex);
17986
17987					helpers.each(dataset.data, function(rawValue, index) {
17988						var value = +me.getRightValue(rawValue);
17989						if (isNaN(value) || meta.data[index].hidden) {
17990							return;
17991						}
17992
17993						min = Math.min(value, min);
17994						max = Math.max(value, max);
17995					});
17996				}
17997			});
17998
17999			me.min = (min === Number.POSITIVE_INFINITY ? 0 : min);
18000			me.max = (max === Number.NEGATIVE_INFINITY ? 0 : max);
18001
18002			// Common base implementation to handle ticks.min, ticks.max, ticks.beginAtZero
18003			me.handleTickRangeOptions();
18004		},
18005		getTickLimit: function() {
18006			var tickOpts = this.options.ticks;
18007			var tickFontSize = helpers.valueOrDefault(tickOpts.fontSize, globalDefaults.defaultFontSize);
18008			return Math.min(tickOpts.maxTicksLimit ? tickOpts.maxTicksLimit : 11, Math.ceil(this.drawingArea / (1.5 * tickFontSize)));
18009		},
18010		convertTicksToLabels: function() {
18011			var me = this;
18012
18013			Chart.LinearScaleBase.prototype.convertTicksToLabels.call(me);
18014
18015			// Point labels
18016			me.pointLabels = me.chart.data.labels.map(me.options.pointLabels.callback, me);
18017		},
18018		getLabelForIndex: function(index, datasetIndex) {
18019			return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
18020		},
18021		fit: function() {
18022			if (this.options.pointLabels.display) {
18023				fitWithPointLabels(this);
18024			} else {
18025				fit(this);
18026			}
18027		},
18028		/**
18029		 * Set radius reductions and determine new radius and center point
18030		 * @private
18031		 */
18032		setReductions: function(largestPossibleRadius, furthestLimits, furthestAngles) {
18033			var me = this;
18034			var radiusReductionLeft = furthestLimits.l / Math.sin(furthestAngles.l);
18035			var radiusReductionRight = Math.max(furthestLimits.r - me.width, 0) / Math.sin(furthestAngles.r);
18036			var radiusReductionTop = -furthestLimits.t / Math.cos(furthestAngles.t);
18037			var radiusReductionBottom = -Math.max(furthestLimits.b - me.height, 0) / Math.cos(furthestAngles.b);
18038
18039			radiusReductionLeft = numberOrZero(radiusReductionLeft);
18040			radiusReductionRight = numberOrZero(radiusReductionRight);
18041			radiusReductionTop = numberOrZero(radiusReductionTop);
18042			radiusReductionBottom = numberOrZero(radiusReductionBottom);
18043
18044			me.drawingArea = Math.min(
18045				Math.round(largestPossibleRadius - (radiusReductionLeft + radiusReductionRight) / 2),
18046				Math.round(largestPossibleRadius - (radiusReductionTop + radiusReductionBottom) / 2));
18047			me.setCenterPoint(radiusReductionLeft, radiusReductionRight, radiusReductionTop, radiusReductionBottom);
18048		},
18049		setCenterPoint: function(leftMovement, rightMovement, topMovement, bottomMovement) {
18050			var me = this;
18051			var maxRight = me.width - rightMovement - me.drawingArea;
18052			var maxLeft = leftMovement + me.drawingArea;
18053			var maxTop = topMovement + me.drawingArea;
18054			var maxBottom = me.height - bottomMovement - me.drawingArea;
18055
18056			me.xCenter = Math.round(((maxLeft + maxRight) / 2) + me.left);
18057			me.yCenter = Math.round(((maxTop + maxBottom) / 2) + me.top);
18058		},
18059
18060		getIndexAngle: function(index) {
18061			var angleMultiplier = (Math.PI * 2) / getValueCount(this);
18062			var startAngle = this.chart.options && this.chart.options.startAngle ?
18063				this.chart.options.startAngle :
18064				0;
18065
18066			var startAngleRadians = startAngle * Math.PI * 2 / 360;
18067
18068			// Start from the top instead of right, so remove a quarter of the circle
18069			return index * angleMultiplier + startAngleRadians;
18070		},
18071		getDistanceFromCenterForValue: function(value) {
18072			var me = this;
18073
18074			if (value === null) {
18075				return 0; // null always in center
18076			}
18077
18078			// Take into account half font size + the yPadding of the top value
18079			var scalingFactor = me.drawingArea / (me.max - me.min);
18080			if (me.options.ticks.reverse) {
18081				return (me.max - value) * scalingFactor;
18082			}
18083			return (value - me.min) * scalingFactor;
18084		},
18085		getPointPosition: function(index, distanceFromCenter) {
18086			var me = this;
18087			var thisAngle = me.getIndexAngle(index) - (Math.PI / 2);
18088			return {
18089				x: Math.round(Math.cos(thisAngle) * distanceFromCenter) + me.xCenter,
18090				y: Math.round(Math.sin(thisAngle) * distanceFromCenter) + me.yCenter
18091			};
18092		},
18093		getPointPositionForValue: function(index, value) {
18094			return this.getPointPosition(index, this.getDistanceFromCenterForValue(value));
18095		},
18096
18097		getBasePosition: function() {
18098			var me = this;
18099			var min = me.min;
18100			var max = me.max;
18101
18102			return me.getPointPositionForValue(0,
18103				me.beginAtZero ? 0 :
18104				min < 0 && max < 0 ? max :
18105				min > 0 && max > 0 ? min :
18106				0);
18107		},
18108
18109		draw: function() {
18110			var me = this;
18111			var opts = me.options;
18112			var gridLineOpts = opts.gridLines;
18113			var tickOpts = opts.ticks;
18114			var valueOrDefault = helpers.valueOrDefault;
18115
18116			if (opts.display) {
18117				var ctx = me.ctx;
18118				var startAngle = this.getIndexAngle(0);
18119
18120				// Tick Font
18121				var tickFontSize = valueOrDefault(tickOpts.fontSize, globalDefaults.defaultFontSize);
18122				var tickFontStyle = valueOrDefault(tickOpts.fontStyle, globalDefaults.defaultFontStyle);
18123				var tickFontFamily = valueOrDefault(tickOpts.fontFamily, globalDefaults.defaultFontFamily);
18124				var tickLabelFont = helpers.fontString(tickFontSize, tickFontStyle, tickFontFamily);
18125
18126				helpers.each(me.ticks, function(label, index) {
18127					// Don't draw a centre value (if it is minimum)
18128					if (index > 0 || tickOpts.reverse) {
18129						var yCenterOffset = me.getDistanceFromCenterForValue(me.ticksAsNumbers[index]);
18130
18131						// Draw circular lines around the scale
18132						if (gridLineOpts.display && index !== 0) {
18133							drawRadiusLine(me, gridLineOpts, yCenterOffset, index);
18134						}
18135
18136						if (tickOpts.display) {
18137							var tickFontColor = valueOrDefault(tickOpts.fontColor, globalDefaults.defaultFontColor);
18138							ctx.font = tickLabelFont;
18139
18140							ctx.save();
18141							ctx.translate(me.xCenter, me.yCenter);
18142							ctx.rotate(startAngle);
18143
18144							if (tickOpts.showLabelBackdrop) {
18145								var labelWidth = ctx.measureText(label).width;
18146								ctx.fillStyle = tickOpts.backdropColor;
18147								ctx.fillRect(
18148									-labelWidth / 2 - tickOpts.backdropPaddingX,
18149									-yCenterOffset - tickFontSize / 2 - tickOpts.backdropPaddingY,
18150									labelWidth + tickOpts.backdropPaddingX * 2,
18151									tickFontSize + tickOpts.backdropPaddingY * 2
18152								);
18153							}
18154
18155							ctx.textAlign = 'center';
18156							ctx.textBaseline = 'middle';
18157							ctx.fillStyle = tickFontColor;
18158							ctx.fillText(label, 0, -yCenterOffset);
18159							ctx.restore();
18160						}
18161					}
18162				});
18163
18164				if (opts.angleLines.display || opts.pointLabels.display) {
18165					drawPointLabels(me);
18166				}
18167			}
18168		}
18169	});
18170
18171	scaleService.registerScaleType('radialLinear', LinearRadialScale, defaultConfig);
18172};
18173
18174},{"26":26,"34":34,"35":35,"46":46}],59:[function(require,module,exports){
18175/* global window: false */
18176'use strict';
18177
18178var moment = require(6);
18179moment = typeof moment === 'function' ? moment : window.moment;
18180
18181var defaults = require(26);
18182var helpers = require(46);
18183var Scale = require(33);
18184var scaleService = require(34);
18185
18186// Integer constants are from the ES6 spec.
18187var MIN_INTEGER = Number.MIN_SAFE_INTEGER || -9007199254740991;
18188var MAX_INTEGER = Number.MAX_SAFE_INTEGER || 9007199254740991;
18189
18190var INTERVALS = {
18191	millisecond: {
18192		common: true,
18193		size: 1,
18194		steps: [1, 2, 5, 10, 20, 50, 100, 250, 500]
18195	},
18196	second: {
18197		common: true,
18198		size: 1000,
18199		steps: [1, 2, 5, 10, 15, 30]
18200	},
18201	minute: {
18202		common: true,
18203		size: 60000,
18204		steps: [1, 2, 5, 10, 15, 30]
18205	},
18206	hour: {
18207		common: true,
18208		size: 3600000,
18209		steps: [1, 2, 3, 6, 12]
18210	},
18211	day: {
18212		common: true,
18213		size: 86400000,
18214		steps: [1, 2, 5]
18215	},
18216	week: {
18217		common: false,
18218		size: 604800000,
18219		steps: [1, 2, 3, 4]
18220	},
18221	month: {
18222		common: true,
18223		size: 2.628e9,
18224		steps: [1, 2, 3]
18225	},
18226	quarter: {
18227		common: false,
18228		size: 7.884e9,
18229		steps: [1, 2, 3, 4]
18230	},
18231	year: {
18232		common: true,
18233		size: 3.154e10
18234	}
18235};
18236
18237var UNITS = Object.keys(INTERVALS);
18238
18239function sorter(a, b) {
18240	return a - b;
18241}
18242
18243function arrayUnique(items) {
18244	var hash = {};
18245	var out = [];
18246	var i, ilen, item;
18247
18248	for (i = 0, ilen = items.length; i < ilen; ++i) {
18249		item = items[i];
18250		if (!hash[item]) {
18251			hash[item] = true;
18252			out.push(item);
18253		}
18254	}
18255
18256	return out;
18257}
18258
18259/**
18260 * Returns an array of {time, pos} objects used to interpolate a specific `time` or position
18261 * (`pos`) on the scale, by searching entries before and after the requested value. `pos` is
18262 * a decimal between 0 and 1: 0 being the start of the scale (left or top) and 1 the other
18263 * extremity (left + width or top + height). Note that it would be more optimized to directly
18264 * store pre-computed pixels, but the scale dimensions are not guaranteed at the time we need
18265 * to create the lookup table. The table ALWAYS contains at least two items: min and max.
18266 *
18267 * @param {Number[]} timestamps - timestamps sorted from lowest to highest.
18268 * @param {String} distribution - If 'linear', timestamps will be spread linearly along the min
18269 * and max range, so basically, the table will contains only two items: {min, 0} and {max, 1}.
18270 * If 'series', timestamps will be positioned at the same distance from each other. In this
18271 * case, only timestamps that break the time linearity are registered, meaning that in the
18272 * best case, all timestamps are linear, the table contains only min and max.
18273 */
18274function buildLookupTable(timestamps, min, max, distribution) {
18275	if (distribution === 'linear' || !timestamps.length) {
18276		return [
18277			{time: min, pos: 0},
18278			{time: max, pos: 1}
18279		];
18280	}
18281
18282	var table = [];
18283	var items = [min];
18284	var i, ilen, prev, curr, next;
18285
18286	for (i = 0, ilen = timestamps.length; i < ilen; ++i) {
18287		curr = timestamps[i];
18288		if (curr > min && curr < max) {
18289			items.push(curr);
18290		}
18291	}
18292
18293	items.push(max);
18294
18295	for (i = 0, ilen = items.length; i < ilen; ++i) {
18296		next = items[i + 1];
18297		prev = items[i - 1];
18298		curr = items[i];
18299
18300		// only add points that breaks the scale linearity
18301		if (prev === undefined || next === undefined || Math.round((next + prev) / 2) !== curr) {
18302			table.push({time: curr, pos: i / (ilen - 1)});
18303		}
18304	}
18305
18306	return table;
18307}
18308
18309// @see adapted from http://www.anujgakhar.com/2014/03/01/binary-search-in-javascript/
18310function lookup(table, key, value) {
18311	var lo = 0;
18312	var hi = table.length - 1;
18313	var mid, i0, i1;
18314
18315	while (lo >= 0 && lo <= hi) {
18316		mid = (lo + hi) >> 1;
18317		i0 = table[mid - 1] || null;
18318		i1 = table[mid];
18319
18320		if (!i0) {
18321			// given value is outside table (before first item)
18322			return {lo: null, hi: i1};
18323		} else if (i1[key] < value) {
18324			lo = mid + 1;
18325		} else if (i0[key] > value) {
18326			hi = mid - 1;
18327		} else {
18328			return {lo: i0, hi: i1};
18329		}
18330	}
18331
18332	// given value is outside table (after last item)
18333	return {lo: i1, hi: null};
18334}
18335
18336/**
18337 * Linearly interpolates the given source `value` using the table items `skey` values and
18338 * returns the associated `tkey` value. For example, interpolate(table, 'time', 42, 'pos')
18339 * returns the position for a timestamp equal to 42. If value is out of bounds, values at
18340 * index [0, 1] or [n - 1, n] are used for the interpolation.
18341 */
18342function interpolate(table, skey, sval, tkey) {
18343	var range = lookup(table, skey, sval);
18344
18345	// Note: the lookup table ALWAYS contains at least 2 items (min and max)
18346	var prev = !range.lo ? table[0] : !range.hi ? table[table.length - 2] : range.lo;
18347	var next = !range.lo ? table[1] : !range.hi ? table[table.length - 1] : range.hi;
18348
18349	var span = next[skey] - prev[skey];
18350	var ratio = span ? (sval - prev[skey]) / span : 0;
18351	var offset = (next[tkey] - prev[tkey]) * ratio;
18352
18353	return prev[tkey] + offset;
18354}
18355
18356/**
18357 * Convert the given value to a moment object using the given time options.
18358 * @see http://momentjs.com/docs/#/parsing/
18359 */
18360function momentify(value, options) {
18361	var parser = options.parser;
18362	var format = options.parser || options.format;
18363
18364	if (typeof parser === 'function') {
18365		return parser(value);
18366	}
18367
18368	if (typeof value === 'string' && typeof format === 'string') {
18369		return moment(value, format);
18370	}
18371
18372	if (!(value instanceof moment)) {
18373		value = moment(value);
18374	}
18375
18376	if (value.isValid()) {
18377		return value;
18378	}
18379
18380	// Labels are in an incompatible moment format and no `parser` has been provided.
18381	// The user might still use the deprecated `format` option to convert his inputs.
18382	if (typeof format === 'function') {
18383		return format(value);
18384	}
18385
18386	return value;
18387}
18388
18389function parse(input, scale) {
18390	if (helpers.isNullOrUndef(input)) {
18391		return null;
18392	}
18393
18394	var options = scale.options.time;
18395	var value = momentify(scale.getRightValue(input), options);
18396	if (!value.isValid()) {
18397		return null;
18398	}
18399
18400	if (options.round) {
18401		value.startOf(options.round);
18402	}
18403
18404	return value.valueOf();
18405}
18406
18407/**
18408 * Returns the number of unit to skip to be able to display up to `capacity` number of ticks
18409 * in `unit` for the given `min` / `max` range and respecting the interval steps constraints.
18410 */
18411function determineStepSize(min, max, unit, capacity) {
18412	var range = max - min;
18413	var interval = INTERVALS[unit];
18414	var milliseconds = interval.size;
18415	var steps = interval.steps;
18416	var i, ilen, factor;
18417
18418	if (!steps) {
18419		return Math.ceil(range / (capacity * milliseconds));
18420	}
18421
18422	for (i = 0, ilen = steps.length; i < ilen; ++i) {
18423		factor = steps[i];
18424		if (Math.ceil(range / (milliseconds * factor)) <= capacity) {
18425			break;
18426		}
18427	}
18428
18429	return factor;
18430}
18431
18432/**
18433 * Figures out what unit results in an appropriate number of auto-generated ticks
18434 */
18435function determineUnitForAutoTicks(minUnit, min, max, capacity) {
18436	var ilen = UNITS.length;
18437	var i, interval, factor;
18438
18439	for (i = UNITS.indexOf(minUnit); i < ilen - 1; ++i) {
18440		interval = INTERVALS[UNITS[i]];
18441		factor = interval.steps ? interval.steps[interval.steps.length - 1] : MAX_INTEGER;
18442
18443		if (interval.common && Math.ceil((max - min) / (factor * interval.size)) <= capacity) {
18444			return UNITS[i];
18445		}
18446	}
18447
18448	return UNITS[ilen - 1];
18449}
18450
18451/**
18452 * Figures out what unit to format a set of ticks with
18453 */
18454function determineUnitForFormatting(ticks, minUnit, min, max) {
18455	var duration = moment.duration(moment(max).diff(moment(min)));
18456	var ilen = UNITS.length;
18457	var i, unit;
18458
18459	for (i = ilen - 1; i >= UNITS.indexOf(minUnit); i--) {
18460		unit = UNITS[i];
18461		if (INTERVALS[unit].common && duration.as(unit) >= ticks.length) {
18462			return unit;
18463		}
18464	}
18465
18466	return UNITS[minUnit ? UNITS.indexOf(minUnit) : 0];
18467}
18468
18469function determineMajorUnit(unit) {
18470	for (var i = UNITS.indexOf(unit) + 1, ilen = UNITS.length; i < ilen; ++i) {
18471		if (INTERVALS[UNITS[i]].common) {
18472			return UNITS[i];
18473		}
18474	}
18475}
18476
18477/**
18478 * Generates a maximum of `capacity` timestamps between min and max, rounded to the
18479 * `minor` unit, aligned on the `major` unit and using the given scale time `options`.
18480 * Important: this method can return ticks outside the min and max range, it's the
18481 * responsibility of the calling code to clamp values if needed.
18482 */
18483function generate(min, max, capacity, options) {
18484	var timeOpts = options.time;
18485	var minor = timeOpts.unit || determineUnitForAutoTicks(timeOpts.minUnit, min, max, capacity);
18486	var major = determineMajorUnit(minor);
18487	var stepSize = helpers.valueOrDefault(timeOpts.stepSize, timeOpts.unitStepSize);
18488	var weekday = minor === 'week' ? timeOpts.isoWeekday : false;
18489	var majorTicksEnabled = options.ticks.major.enabled;
18490	var interval = INTERVALS[minor];
18491	var first = moment(min);
18492	var last = moment(max);
18493	var ticks = [];
18494	var time;
18495
18496	if (!stepSize) {
18497		stepSize = determineStepSize(min, max, minor, capacity);
18498	}
18499
18500	// For 'week' unit, handle the first day of week option
18501	if (weekday) {
18502		first = first.isoWeekday(weekday);
18503		last = last.isoWeekday(weekday);
18504	}
18505
18506	// Align first/last ticks on unit
18507	first = first.startOf(weekday ? 'day' : minor);
18508	last = last.startOf(weekday ? 'day' : minor);
18509
18510	// Make sure that the last tick include max
18511	if (last < max) {
18512		last.add(1, minor);
18513	}
18514
18515	time = moment(first);
18516
18517	if (majorTicksEnabled && major && !weekday && !timeOpts.round) {
18518		// Align the first tick on the previous `minor` unit aligned on the `major` unit:
18519		// we first aligned time on the previous `major` unit then add the number of full
18520		// stepSize there is between first and the previous major time.
18521		time.startOf(major);
18522		time.add(~~((first - time) / (interval.size * stepSize)) * stepSize, minor);
18523	}
18524
18525	for (; time < last; time.add(stepSize, minor)) {
18526		ticks.push(+time);
18527	}
18528
18529	ticks.push(+time);
18530
18531	return ticks;
18532}
18533
18534/**
18535 * Returns the right and left offsets from edges in the form of {left, right}.
18536 * Offsets are added when the `offset` option is true.
18537 */
18538function computeOffsets(table, ticks, min, max, options) {
18539	var left = 0;
18540	var right = 0;
18541	var upper, lower;
18542
18543	if (options.offset && ticks.length) {
18544		if (!options.time.min) {
18545			upper = ticks.length > 1 ? ticks[1] : max;
18546			lower = ticks[0];
18547			left = (
18548				interpolate(table, 'time', upper, 'pos') -
18549				interpolate(table, 'time', lower, 'pos')
18550			) / 2;
18551		}
18552		if (!options.time.max) {
18553			upper = ticks[ticks.length - 1];
18554			lower = ticks.length > 1 ? ticks[ticks.length - 2] : min;
18555			right = (
18556				interpolate(table, 'time', upper, 'pos') -
18557				interpolate(table, 'time', lower, 'pos')
18558			) / 2;
18559		}
18560	}
18561
18562	return {left: left, right: right};
18563}
18564
18565function ticksFromTimestamps(values, majorUnit) {
18566	var ticks = [];
18567	var i, ilen, value, major;
18568
18569	for (i = 0, ilen = values.length; i < ilen; ++i) {
18570		value = values[i];
18571		major = majorUnit ? value === +moment(value).startOf(majorUnit) : false;
18572
18573		ticks.push({
18574			value: value,
18575			major: major
18576		});
18577	}
18578
18579	return ticks;
18580}
18581
18582function determineLabelFormat(data, timeOpts) {
18583	var i, momentDate, hasTime;
18584	var ilen = data.length;
18585
18586	// find the label with the most parts (milliseconds, minutes, etc.)
18587	// format all labels with the same level of detail as the most specific label
18588	for (i = 0; i < ilen; i++) {
18589		momentDate = momentify(data[i], timeOpts);
18590		if (momentDate.millisecond() !== 0) {
18591			return 'MMM D, YYYY h:mm:ss.SSS a';
18592		}
18593		if (momentDate.second() !== 0 || momentDate.minute() !== 0 || momentDate.hour() !== 0) {
18594			hasTime = true;
18595		}
18596	}
18597	if (hasTime) {
18598		return 'MMM D, YYYY h:mm:ss a';
18599	}
18600	return 'MMM D, YYYY';
18601}
18602
18603module.exports = function() {
18604
18605	var defaultConfig = {
18606		position: 'bottom',
18607
18608		/**
18609		 * Data distribution along the scale:
18610		 * - 'linear': data are spread according to their time (distances can vary),
18611		 * - 'series': data are spread at the same distance from each other.
18612		 * @see https://github.com/chartjs/Chart.js/pull/4507
18613		 * @since 2.7.0
18614		 */
18615		distribution: 'linear',
18616
18617		/**
18618		 * Scale boundary strategy (bypassed by min/max time options)
18619		 * - `data`: make sure data are fully visible, ticks outside are removed
18620		 * - `ticks`: make sure ticks are fully visible, data outside are truncated
18621		 * @see https://github.com/chartjs/Chart.js/pull/4556
18622		 * @since 2.7.0
18623		 */
18624		bounds: 'data',
18625
18626		time: {
18627			parser: false, // false == a pattern string from http://momentjs.com/docs/#/parsing/string-format/ or a custom callback that converts its argument to a moment
18628			format: false, // DEPRECATED false == date objects, moment object, callback or a pattern string from http://momentjs.com/docs/#/parsing/string-format/
18629			unit: false, // false == automatic or override with week, month, year, etc.
18630			round: false, // none, or override with week, month, year, etc.
18631			displayFormat: false, // DEPRECATED
18632			isoWeekday: false, // override week start day - see http://momentjs.com/docs/#/get-set/iso-weekday/
18633			minUnit: 'millisecond',
18634
18635			// defaults to unit's corresponding unitFormat below or override using pattern string from http://momentjs.com/docs/#/displaying/format/
18636			displayFormats: {
18637				millisecond: 'h:mm:ss.SSS a', // 11:20:01.123 AM,
18638				second: 'h:mm:ss a', // 11:20:01 AM
18639				minute: 'h:mm a', // 11:20 AM
18640				hour: 'hA', // 5PM
18641				day: 'MMM D', // Sep 4
18642				week: 'll', // Week 46, or maybe "[W]WW - YYYY" ?
18643				month: 'MMM YYYY', // Sept 2015
18644				quarter: '[Q]Q - YYYY', // Q3
18645				year: 'YYYY' // 2015
18646			},
18647		},
18648		ticks: {
18649			autoSkip: false,
18650
18651			/**
18652			 * Ticks generation input values:
18653			 * - 'auto': generates "optimal" ticks based on scale size and time options.
18654			 * - 'data': generates ticks from data (including labels from data {t|x|y} objects).
18655			 * - 'labels': generates ticks from user given `data.labels` values ONLY.
18656			 * @see https://github.com/chartjs/Chart.js/pull/4507
18657			 * @since 2.7.0
18658			 */
18659			source: 'auto',
18660
18661			major: {
18662				enabled: false
18663			}
18664		}
18665	};
18666
18667	var TimeScale = Scale.extend({
18668		initialize: function() {
18669			if (!moment) {
18670				throw new Error('Chart.js - Moment.js could not be found! You must include it before Chart.js to use the time scale. Download at https://momentjs.com');
18671			}
18672
18673			this.mergeTicksOptions();
18674
18675			Scale.prototype.initialize.call(this);
18676		},
18677
18678		update: function() {
18679			var me = this;
18680			var options = me.options;
18681
18682			// DEPRECATIONS: output a message only one time per update
18683			if (options.time && options.time.format) {
18684				console.warn('options.time.format is deprecated and replaced by options.time.parser.');
18685			}
18686
18687			return Scale.prototype.update.apply(me, arguments);
18688		},
18689
18690		/**
18691		 * Allows data to be referenced via 't' attribute
18692		 */
18693		getRightValue: function(rawValue) {
18694			if (rawValue && rawValue.t !== undefined) {
18695				rawValue = rawValue.t;
18696			}
18697			return Scale.prototype.getRightValue.call(this, rawValue);
18698		},
18699
18700		determineDataLimits: function() {
18701			var me = this;
18702			var chart = me.chart;
18703			var timeOpts = me.options.time;
18704			var unit = timeOpts.unit || 'day';
18705			var min = MAX_INTEGER;
18706			var max = MIN_INTEGER;
18707			var timestamps = [];
18708			var datasets = [];
18709			var labels = [];
18710			var i, j, ilen, jlen, data, timestamp;
18711
18712			// Convert labels to timestamps
18713			for (i = 0, ilen = chart.data.labels.length; i < ilen; ++i) {
18714				labels.push(parse(chart.data.labels[i], me));
18715			}
18716
18717			// Convert data to timestamps
18718			for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
18719				if (chart.isDatasetVisible(i)) {
18720					data = chart.data.datasets[i].data;
18721
18722					// Let's consider that all data have the same format.
18723					if (helpers.isObject(data[0])) {
18724						datasets[i] = [];
18725
18726						for (j = 0, jlen = data.length; j < jlen; ++j) {
18727							timestamp = parse(data[j], me);
18728							timestamps.push(timestamp);
18729							datasets[i][j] = timestamp;
18730						}
18731					} else {
18732						timestamps.push.apply(timestamps, labels);
18733						datasets[i] = labels.slice(0);
18734					}
18735				} else {
18736					datasets[i] = [];
18737				}
18738			}
18739
18740			if (labels.length) {
18741				// Sort labels **after** data have been converted
18742				labels = arrayUnique(labels).sort(sorter);
18743				min = Math.min(min, labels[0]);
18744				max = Math.max(max, labels[labels.length - 1]);
18745			}
18746
18747			if (timestamps.length) {
18748				timestamps = arrayUnique(timestamps).sort(sorter);
18749				min = Math.min(min, timestamps[0]);
18750				max = Math.max(max, timestamps[timestamps.length - 1]);
18751			}
18752
18753			min = parse(timeOpts.min, me) || min;
18754			max = parse(timeOpts.max, me) || max;
18755
18756			// In case there is no valid min/max, set limits based on unit time option
18757			min = min === MAX_INTEGER ? +moment().startOf(unit) : min;
18758			max = max === MIN_INTEGER ? +moment().endOf(unit) + 1 : max;
18759
18760			// Make sure that max is strictly higher than min (required by the lookup table)
18761			me.min = Math.min(min, max);
18762			me.max = Math.max(min + 1, max);
18763
18764			// PRIVATE
18765			me._horizontal = me.isHorizontal();
18766			me._table = [];
18767			me._timestamps = {
18768				data: timestamps,
18769				datasets: datasets,
18770				labels: labels
18771			};
18772		},
18773
18774		buildTicks: function() {
18775			var me = this;
18776			var min = me.min;
18777			var max = me.max;
18778			var options = me.options;
18779			var timeOpts = options.time;
18780			var timestamps = [];
18781			var ticks = [];
18782			var i, ilen, timestamp;
18783
18784			switch (options.ticks.source) {
18785			case 'data':
18786				timestamps = me._timestamps.data;
18787				break;
18788			case 'labels':
18789				timestamps = me._timestamps.labels;
18790				break;
18791			case 'auto':
18792			default:
18793				timestamps = generate(min, max, me.getLabelCapacity(min), options);
18794			}
18795
18796			if (options.bounds === 'ticks' && timestamps.length) {
18797				min = timestamps[0];
18798				max = timestamps[timestamps.length - 1];
18799			}
18800
18801			// Enforce limits with user min/max options
18802			min = parse(timeOpts.min, me) || min;
18803			max = parse(timeOpts.max, me) || max;
18804
18805			// Remove ticks outside the min/max range
18806			for (i = 0, ilen = timestamps.length; i < ilen; ++i) {
18807				timestamp = timestamps[i];
18808				if (timestamp >= min && timestamp <= max) {
18809					ticks.push(timestamp);
18810				}
18811			}
18812
18813			me.min = min;
18814			me.max = max;
18815
18816			// PRIVATE
18817			me._unit = timeOpts.unit || determineUnitForFormatting(ticks, timeOpts.minUnit, me.min, me.max);
18818			me._majorUnit = determineMajorUnit(me._unit);
18819			me._table = buildLookupTable(me._timestamps.data, min, max, options.distribution);
18820			me._offsets = computeOffsets(me._table, ticks, min, max, options);
18821			me._labelFormat = determineLabelFormat(me._timestamps.data, timeOpts);
18822
18823			return ticksFromTimestamps(ticks, me._majorUnit);
18824		},
18825
18826		getLabelForIndex: function(index, datasetIndex) {
18827			var me = this;
18828			var data = me.chart.data;
18829			var timeOpts = me.options.time;
18830			var label = data.labels && index < data.labels.length ? data.labels[index] : '';
18831			var value = data.datasets[datasetIndex].data[index];
18832
18833			if (helpers.isObject(value)) {
18834				label = me.getRightValue(value);
18835			}
18836			if (timeOpts.tooltipFormat) {
18837				return momentify(label, timeOpts).format(timeOpts.tooltipFormat);
18838			}
18839			if (typeof label === 'string') {
18840				return label;
18841			}
18842
18843			return momentify(label, timeOpts).format(me._labelFormat);
18844		},
18845
18846		/**
18847		 * Function to format an individual tick mark
18848		 * @private
18849		 */
18850		tickFormatFunction: function(tick, index, ticks, formatOverride) {
18851			var me = this;
18852			var options = me.options;
18853			var time = tick.valueOf();
18854			var formats = options.time.displayFormats;
18855			var minorFormat = formats[me._unit];
18856			var majorUnit = me._majorUnit;
18857			var majorFormat = formats[majorUnit];
18858			var majorTime = tick.clone().startOf(majorUnit).valueOf();
18859			var majorTickOpts = options.ticks.major;
18860			var major = majorTickOpts.enabled && majorUnit && majorFormat && time === majorTime;
18861			var label = tick.format(formatOverride ? formatOverride : major ? majorFormat : minorFormat);
18862			var tickOpts = major ? majorTickOpts : options.ticks.minor;
18863			var formatter = helpers.valueOrDefault(tickOpts.callback, tickOpts.userCallback);
18864
18865			return formatter ? formatter(label, index, ticks) : label;
18866		},
18867
18868		convertTicksToLabels: function(ticks) {
18869			var labels = [];
18870			var i, ilen;
18871
18872			for (i = 0, ilen = ticks.length; i < ilen; ++i) {
18873				labels.push(this.tickFormatFunction(moment(ticks[i].value), i, ticks));
18874			}
18875
18876			return labels;
18877		},
18878
18879		/**
18880		 * @private
18881		 */
18882		getPixelForOffset: function(time) {
18883			var me = this;
18884			var size = me._horizontal ? me.width : me.height;
18885			var start = me._horizontal ? me.left : me.top;
18886			var pos = interpolate(me._table, 'time', time, 'pos');
18887
18888			return start + size * (me._offsets.left + pos) / (me._offsets.left + 1 + me._offsets.right);
18889		},
18890
18891		getPixelForValue: function(value, index, datasetIndex) {
18892			var me = this;
18893			var time = null;
18894
18895			if (index !== undefined && datasetIndex !== undefined) {
18896				time = me._timestamps.datasets[datasetIndex][index];
18897			}
18898
18899			if (time === null) {
18900				time = parse(value, me);
18901			}
18902
18903			if (time !== null) {
18904				return me.getPixelForOffset(time);
18905			}
18906		},
18907
18908		getPixelForTick: function(index) {
18909			var ticks = this.getTicks();
18910			return index >= 0 && index < ticks.length ?
18911				this.getPixelForOffset(ticks[index].value) :
18912				null;
18913		},
18914
18915		getValueForPixel: function(pixel) {
18916			var me = this;
18917			var size = me._horizontal ? me.width : me.height;
18918			var start = me._horizontal ? me.left : me.top;
18919			var pos = (size ? (pixel - start) / size : 0) * (me._offsets.left + 1 + me._offsets.left) - me._offsets.right;
18920			var time = interpolate(me._table, 'pos', pos, 'time');
18921
18922			return moment(time);
18923		},
18924
18925		/**
18926		 * Crude approximation of what the label width might be
18927		 * @private
18928		 */
18929		getLabelWidth: function(label) {
18930			var me = this;
18931			var ticksOpts = me.options.ticks;
18932			var tickLabelWidth = me.ctx.measureText(label).width;
18933			var angle = helpers.toRadians(ticksOpts.maxRotation);
18934			var cosRotation = Math.cos(angle);
18935			var sinRotation = Math.sin(angle);
18936			var tickFontSize = helpers.valueOrDefault(ticksOpts.fontSize, defaults.global.defaultFontSize);
18937
18938			return (tickLabelWidth * cosRotation) + (tickFontSize * sinRotation);
18939		},
18940
18941		/**
18942		 * @private
18943		 */
18944		getLabelCapacity: function(exampleTime) {
18945			var me = this;
18946
18947			var formatOverride = me.options.time.displayFormats.millisecond;	// Pick the longest format for guestimation
18948
18949			var exampleLabel = me.tickFormatFunction(moment(exampleTime), 0, [], formatOverride);
18950			var tickLabelWidth = me.getLabelWidth(exampleLabel);
18951			var innerWidth = me.isHorizontal() ? me.width : me.height;
18952
18953			var capacity = Math.floor(innerWidth / tickLabelWidth);
18954			return capacity > 0 ? capacity : 1;
18955		}
18956	});
18957
18958	scaleService.registerScaleType('time', TimeScale, defaultConfig);
18959};
18960
18961},{"26":26,"33":33,"34":34,"46":46,"6":6}]},{},[7])(7)
18962});

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