vendor: 16,680 bytes, lines 1-432
1/* Pretty handling of time axes. 2 3Copyright (c) 2007-2014 IOLA and Ole Laursen. 4Licensed under the MIT license. 5 6Set axis.mode to "time" to enable. See the section "Time series data" in 7API.txt for details. 8 9*/ 10 11(function ($) { 12 13 var options = { 14 xaxis: { 15 timezone: null, // "browser" for local to the client or timezone for timezone-js 16 timeformat: null, // format string to use 17 twelveHourClock: false, // 12 or 24 time in time mode 18 monthNames: null // list of names of months 19 } 20 }; 21 22 // round to nearby lower multiple of base 23 24 function floorInBase(n, base) { 25 return base * Math.floor(n / base); 26 } 27 28 // Returns a string with the date d formatted according to fmt. 29 // A subset of the Open Group's strftime format is supported. 30 31 function formatDate(d, fmt, monthNames, dayNames) { 32 33 if (typeof d.strftime == "function") { 34 return d.strftime(fmt); 35 } 36 37 var leftPad = function (n, pad) { 38 n = "" + n; 39 pad = "" + (pad == null ? "0" : pad); 40 return n.length == 1 ? pad + n : n; 41 }; 42 43 var r = []; 44 var escape = false; 45 var hours = d.getHours(); 46 var isAM = hours < 12; 47 48 if (monthNames == null) { 49 monthNames = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]; 50 } 51 52 if (dayNames == null) { 53 dayNames = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"]; 54 } 55 56 var hours12; 57 58 if (hours > 12) { 59 hours12 = hours - 12; 60 } else if (hours == 0) { 61 hours12 = 12; 62 } else { 63 hours12 = hours; 64 } 65 66 for (var i = 0; i < fmt.length; ++i) { 67 68 var c = fmt.charAt(i); 69 70 if (escape) { 71 switch (c) { 72 case 'a': c = "" + dayNames[d.getDay()]; break; 73 case 'b': c = "" + monthNames[d.getMonth()]; break; 74 case 'd': c = leftPad(d.getDate()); break; 75 case 'e': c = leftPad(d.getDate(), " "); break; 76 case 'h': // For back-compat with 0.7; remove in 1.0 77 case 'H': c = leftPad(hours); break; 78 case 'I': c = leftPad(hours12); break; 79 case 'l': c = leftPad(hours12, " "); break; 80 case 'm': c = leftPad(d.getMonth() + 1); break; 81 case 'M': c = leftPad(d.getMinutes()); break; 82 // quarters not in Open Group's strftime specification 83 case 'q': 84 c = "" + (Math.floor(d.getMonth() / 3) + 1); break; 85 case 'S': c = leftPad(d.getSeconds()); break; 86 case 'y': c = leftPad(d.getFullYear() % 100); break; 87 case 'Y': c = "" + d.getFullYear(); break; 88 case 'p': c = (isAM) ? ("" + "am") : ("" + "pm"); break; 89 case 'P': c = (isAM) ? ("" + "AM") : ("" + "PM"); break; 90 case 'w': c = "" + d.getDay(); break; 91 } 92 r.push(c); 93 escape = false; 94 } else { 95 if (c == "%") { 96 escape = true; 97 } else { 98 r.push(c); 99 } 100 } 101 } 102 103 return r.join(""); 104 } 105 106 // To have a consistent view of time-based data independent of which time 107 // zone the client happens to be in we need a date-like object independent 108 // of time zones. This is done through a wrapper that only calls the UTC 109 // versions of the accessor methods. 110 111 function makeUtcWrapper(d) { 112 113 function addProxyMethod(sourceObj, sourceMethod, targetObj, targetMethod) { 114 sourceObj[sourceMethod] = function () { 115 return targetObj[targetMethod].apply(targetObj, arguments); 116 }; 117 }; 118 119 var utc = { 120 date: d 121 }; 122 123 // support strftime, if found 124 125 if (d.strftime != undefined) { 126 addProxyMethod(utc, "strftime", d, "strftime"); 127 } 128 129 addProxyMethod(utc, "getTime", d, "getTime"); 130 addProxyMethod(utc, "setTime", d, "setTime"); 131 132 var props = ["Date", "Day", "FullYear", "Hours", "Milliseconds", "Minutes", "Month", "Seconds"]; 133 134 for (var p = 0; p < props.length; p++) { 135 addProxyMethod(utc, "get" + props[p], d, "getUTC" + props[p]); 136 addProxyMethod(utc, "set" + props[p], d, "setUTC" + props[p]); 137 } 138 139 return utc; 140 }; 141 142 // select time zone strategy. This returns a date-like object tied to the 143 // desired timezone 144 145 function dateGenerator(ts, opts) { 146 if (opts.timezone == "browser") { 147 return new Date(ts); 148 } else if (!opts.timezone || opts.timezone == "utc") { 149 return makeUtcWrapper(new Date(ts)); 150 } else if (typeof timezoneJS != "undefined" && typeof timezoneJS.Date != "undefined") { 151 var d = new timezoneJS.Date(); 152 // timezone-js is fickle, so be sure to set the time zone before 153 // setting the time. 154 d.setTimezone(opts.timezone); 155 d.setTime(ts); 156 return d; 157 } else { 158 return makeUtcWrapper(new Date(ts)); 159 } 160 } 161 162 // map of app. size of time units in milliseconds 163 164 var timeUnitSize = { 165 "second": 1000, 166 "minute": 60 * 1000, 167 "hour": 60 * 60 * 1000, 168 "day": 24 * 60 * 60 * 1000, 169 "month": 30 * 24 * 60 * 60 * 1000, 170 "quarter": 3 * 30 * 24 * 60 * 60 * 1000, 171 "year": 365.2425 * 24 * 60 * 60 * 1000 172 }; 173 174 // the allowed tick sizes, after 1 year we use 175 // an integer algorithm 176 177 var baseSpec = [ 178 [1, "second"], [2, "second"], [5, "second"], [10, "second"], 179 [30, "second"], 180 [1, "minute"], [2, "minute"], [5, "minute"], [10, "minute"], 181 [30, "minute"], 182 [1, "hour"], [2, "hour"], [4, "hour"], 183 [8, "hour"], [12, "hour"], 184 [1, "day"], [2, "day"], [3, "day"], 185 [0.25, "month"], [0.5, "month"], [1, "month"], 186 [2, "month"] 187 ]; 188 189 // we don't know which variant(s) we'll need yet, but generating both is 190 // cheap 191 192 var specMonths = baseSpec.concat([[3, "month"], [6, "month"], 193 [1, "year"]]); 194 var specQuarters = baseSpec.concat([[1, "quarter"], [2, "quarter"], 195 [1, "year"]]); 196 197 function init(plot) { 198 plot.hooks.processOptions.push(function (plot, options) { 199 $.each(plot.getAxes(), function (axisName, axis) { 200 201 var opts = axis.options; 202 203 if (opts.mode == "time") { 204 axis.tickGenerator = function (axis) { 205 206 var ticks = []; 207 var d = dateGenerator(axis.min, opts); 208 var minSize = 0; 209 210 // make quarter use a possibility if quarters are 211 // mentioned in either of these options 212 213 var spec = (opts.tickSize && opts.tickSize[1] === 214 "quarter") || 215 (opts.minTickSize && opts.minTickSize[1] === 216 "quarter") ? specQuarters : specMonths; 217 218 if (opts.minTickSize != null) { 219 if (typeof opts.tickSize == "number") { 220 minSize = opts.tickSize; 221 } else { 222 minSize = opts.minTickSize[0] * timeUnitSize[opts.minTickSize[1]]; 223 } 224 } 225 226 for (var i = 0; i < spec.length - 1; ++i) { 227 if (axis.delta < (spec[i][0] * timeUnitSize[spec[i][1]] 228 + spec[i + 1][0] * timeUnitSize[spec[i + 1][1]]) / 2 229 && spec[i][0] * timeUnitSize[spec[i][1]] >= minSize) { 230 break; 231 } 232 } 233 234 var size = spec[i][0]; 235 var unit = spec[i][1]; 236 237 // special-case the possibility of several years 238 239 if (unit == "year") { 240 241 // if given a minTickSize in years, just use it, 242 // ensuring that it's an integer 243 244 if (opts.minTickSize != null && opts.minTickSize[1] == "year") { 245 size = Math.floor(opts.minTickSize[0]); 246 } else { 247 248 var magn = Math.pow(10, Math.floor(Math.log(axis.delta / timeUnitSize.year) / Math.LN10)); 249 var norm = (axis.delta / timeUnitSize.year) / magn; 250 251 if (norm < 1.5) { 252 size = 1; 253 } else if (norm < 3) { 254 size = 2; 255 } else if (norm < 7.5) { 256 size = 5; 257 } else { 258 size = 10; 259 } 260 261 size *= magn; 262 } 263 264 // minimum size for years is 1 265 266 if (size < 1) { 267 size = 1; 268 } 269 } 270 271 axis.tickSize = opts.tickSize || [size, unit]; 272 var tickSize = axis.tickSize[0]; 273 unit = axis.tickSize[1]; 274 275 var step = tickSize * timeUnitSize[unit]; 276 277 if (unit == "second") { 278 d.setSeconds(floorInBase(d.getSeconds(), tickSize)); 279 } else if (unit == "minute") { 280 d.setMinutes(floorInBase(d.getMinutes(), tickSize)); 281 } else if (unit == "hour") { 282 d.setHours(floorInBase(d.getHours(), tickSize)); 283 } else if (unit == "month") { 284 d.setMonth(floorInBase(d.getMonth(), tickSize)); 285 } else if (unit == "quarter") { 286 d.setMonth(3 * floorInBase(d.getMonth() / 3, 287 tickSize)); 288 } else if (unit == "year") { 289 d.setFullYear(floorInBase(d.getFullYear(), tickSize)); 290 } 291 292 // reset smaller components 293 294 d.setMilliseconds(0); 295 296 if (step >= timeUnitSize.minute) { 297 d.setSeconds(0); 298 } 299 if (step >= timeUnitSize.hour) { 300 d.setMinutes(0); 301 } 302 if (step >= timeUnitSize.day) { 303 d.setHours(0); 304 } 305 if (step >= timeUnitSize.day * 4) { 306 d.setDate(1); 307 } 308 if (step >= timeUnitSize.month * 2) { 309 d.setMonth(floorInBase(d.getMonth(), 3)); 310 } 311 if (step >= timeUnitSize.quarter * 2) { 312 d.setMonth(floorInBase(d.getMonth(), 6)); 313 } 314 if (step >= timeUnitSize.year) { 315 d.setMonth(0); 316 } 317 318 var carry = 0; 319 var v = Number.NaN; 320 var prev; 321 322 do { 323 324 prev = v; 325 v = d.getTime(); 326 ticks.push(v); 327 328 if (unit == "month" || unit == "quarter") { 329 if (tickSize < 1) { 330 331 // a bit complicated - we'll divide the 332 // month/quarter up but we need to take 333 // care of fractions so we don't end up in 334 // the middle of a day 335 336 d.setDate(1); 337 var start = d.getTime(); 338 d.setMonth(d.getMonth() + 339 (unit == "quarter" ? 3 : 1)); 340 var end = d.getTime(); 341 d.setTime(v + carry * timeUnitSize.hour + (end - start) * tickSize); 342 carry = d.getHours(); 343 d.setHours(0); 344 } else { 345 d.setMonth(d.getMonth() + 346 tickSize * (unit == "quarter" ? 3 : 1)); 347 } 348 } else if (unit == "year") { 349 d.setFullYear(d.getFullYear() + tickSize); 350 } else { 351 d.setTime(v + step); 352 } 353 } while (v < axis.max && v != prev); 354 355 return ticks; 356 }; 357 358 axis.tickFormatter = function (v, axis) { 359 360 var d = dateGenerator(v, axis.options); 361 362 // first check global format 363 364 if (opts.timeformat != null) { 365 return formatDate(d, opts.timeformat, opts.monthNames, opts.dayNames); 366 } 367 368 // possibly use quarters if quarters are mentioned in 369 // any of these places 370 371 var useQuarters = (axis.options.tickSize && 372 axis.options.tickSize[1] == "quarter") || 373 (axis.options.minTickSize && 374 axis.options.minTickSize[1] == "quarter"); 375 376 var t = axis.tickSize[0] * timeUnitSize[axis.tickSize[1]]; 377 var span = axis.max - axis.min; 378 var suffix = (opts.twelveHourClock) ? " %p" : ""; 379 var hourCode = (opts.twelveHourClock) ? "%I" : "%H"; 380 var fmt; 381 382 if (t < timeUnitSize.minute) { 383 fmt = hourCode + ":%M:%S" + suffix; 384 } else if (t < timeUnitSize.day) { 385 if (span < 2 * timeUnitSize.day) { 386 fmt = hourCode + ":%M" + suffix; 387 } else { 388 fmt = "%b %d " + hourCode + ":%M" + suffix; 389 } 390 } else if (t < timeUnitSize.month) { 391 fmt = "%b %d"; 392 } else if ((useQuarters && t < timeUnitSize.quarter) || 393 (!useQuarters && t < timeUnitSize.year)) { 394 if (span < timeUnitSize.year) { 395 fmt = "%b"; 396 } else { 397 fmt = "%b %Y"; 398 } 399 } else if (useQuarters && t < timeUnitSize.year) { 400 if (span < timeUnitSize.year) { 401 fmt = "Q%q"; 402 } else { 403 fmt = "Q%q %Y"; 404 } 405 } else { 406 fmt = "%Y"; 407 } 408 409 var rt = formatDate(d, fmt, opts.monthNames, opts.dayNames); 410 411 return rt; 412 }; 413 } 414 }); 415 }); 416 } 417 418 $.plot.plugins.push({ 419 init: init, 420 options: options, 421 name: 'time', 422 version: '1.0' 423 }); 424 425 // Time-axis support used to be in Flot core, which exposed the 426 // formatDate function on the plot object. Various plugins depend 427 // on the function, so we need to re-expose it here. 428 429 $.plot.formatDate = formatDate; 430 $.plot.dateGenerator = dateGenerator; 431 432})(jQuery);
Line numbers count LF bytes from the start of the resource, as the search results do. Vendor segments are library code the classifier recognised; they are stored but not indexed. Bytes are shown as Latin1 characters, one per byte.