https://visapourlimage.com/wp-content/themes/uncode/library/js/lib/isotope.pkgd.js?ver=1151487057

1/*!
2 * Isotope PACKAGED v3.0.6
3 *
4 * Licensed GPLv3 for open source use
5 * or Isotope Commercial License for commercial use
6 *
7 * https://isotope.metafizzy.co
8 * Copyright 2010-2018 Metafizzy
9 */
10
11/**
12 * Bridget makes jQuery widgets
13 * v2.0.1
14 * MIT license
15 */
16
17/* jshint browser: true, strict: true, undef: true, unused: true */
18
19( function( window, factory ) {
20  // universal module definition
21  /*jshint strict: false */ /* globals define, module, require */
22  if ( typeof define == 'function' && define.amd ) {
23    // AMD
24    define( 'jquery-bridget/jquery-bridget',[ 'jquery' ], function( jQuery ) {
25      return factory( window, jQuery );
26    });
27  } else if ( typeof module == 'object' && module.exports ) {
28    // CommonJS
29    module.exports = factory(
30      window,
31      require('jquery')
32    );
33  } else {
34    // browser global
35    window.jQueryBridget = factory(
36      window,
37      window.jQuery
38    );
39  }
40
41}( window, function factory( window, jQuery ) {
42'use strict';
43
44// ----- utils ----- //
45
46var arraySlice = Array.prototype.slice;
47
48// helper function for logging errors
49// $.error breaks jQuery chaining
50var console = window.console;
51var logError = typeof console == 'undefined' ? function() {} :
52  function( message ) {
53    console.error( message );
54  };
55
56// ----- jQueryBridget ----- //
57
58function jQueryBridget( namespace, PluginClass, $ ) {
59  $ = $ || jQuery || window.jQuery;
60  if ( !$ ) {
61    return;
62  }
63
64  // add option method -> $().plugin('option', {...})
65  if ( !PluginClass.prototype.option ) {
66    // option setter
67    PluginClass.prototype.option = function( opts ) {
68      // bail out if not an object
69      if ( !$.isPlainObject( opts ) ){
70        return;
71      }
72      this.options = $.extend( true, this.options, opts );
73    };
74  }
75
76  // make jQuery plugin
77  $.fn[ namespace ] = function( arg0 /*, arg1 */ ) {
78    if ( typeof arg0 == 'string' ) {
79      // method call $().plugin( 'methodName', { options } )
80      // shift arguments by 1
81      var args = arraySlice.call( arguments, 1 );
82      return methodCall( this, arg0, args );
83    }
84    // just $().plugin({ options })
85    plainCall( this, arg0 );
86    return this;
87  };
88
89  // $().plugin('methodName')
90  function methodCall( $elems, methodName, args ) {
91    var returnValue;
92    var pluginMethodStr = '$().' + namespace + '("' + methodName + '")';
93
94    $elems.each( function( i, elem ) {
95      // get instance
96      var instance = $.data( elem, namespace );
97      if ( !instance ) {
98        logError( namespace + ' not initialized. Cannot call methods, i.e. ' +
99          pluginMethodStr );
100        return;
101      }
102
103      var method = instance[ methodName ];
104      if ( !method || methodName.charAt(0) == '_' ) {
105        logError( pluginMethodStr + ' is not a valid method' );
106        return;
107      }
108
109      // apply method, get return value
110      var value = method.apply( instance, args );
111      // set return value if value is returned, use only first value
112      returnValue = returnValue === undefined ? value : returnValue;
113    });
114
115    return returnValue !== undefined ? returnValue : $elems;
116  }
117
118  function plainCall( $elems, options ) {
119    $elems.each( function( i, elem ) {
120      var instance = $.data( elem, namespace );
121      if ( instance ) {
122        // set options & init
123        instance.option( options );
124        instance._init();
125      } else {
126        // initialize new instance
127        instance = new PluginClass( elem, options );
128        $.data( elem, namespace, instance );
129      }
130    });
131  }
132
133  updateJQuery( $ );
134
135}
136
137// ----- updateJQuery ----- //
138
139// set $.bridget for v1 backwards compatibility
140function updateJQuery( $ ) {
141  if ( !$ || ( $ && $.bridget ) ) {
142    return;
143  }
144  $.bridget = jQueryBridget;
145}
146
147updateJQuery( jQuery || window.jQuery );
148
149// -----  ----- //
150
151return jQueryBridget;
152
153}));
154
155/**
156 * EvEmitter v1.1.0
157 * Lil' event emitter
158 * MIT License
159 */
160
161/* jshint unused: true, undef: true, strict: true */
162
163( function( global, factory ) {
164  // universal module definition
165  /* jshint strict: false */ /* globals define, module, window */
166  if ( typeof define == 'function' && define.amd ) {
167    // AMD - RequireJS
168    define( 'ev-emitter/ev-emitter',factory );
169  } else if ( typeof module == 'object' && module.exports ) {
170    // CommonJS - Browserify, Webpack
171    module.exports = factory();
172  } else {
173    // Browser globals
174    global.EvEmitter = factory();
175  }
176
177}( typeof window != 'undefined' ? window : this, function() {
178
179
180
181function EvEmitter() {}
182
183var proto = EvEmitter.prototype;
184
185proto.on = function( eventName, listener ) {
186  if ( !eventName || !listener ) {
187    return;
188  }
189  // set events hash
190  var events = this._events = this._events || {};
191  // set listeners array
192  var listeners = events[ eventName ] = events[ eventName ] || [];
193  // only add once
194  if ( listeners.indexOf( listener ) == -1 ) {
195    listeners.push( listener );
196  }
197
198  return this;
199};
200
201proto.once = function( eventName, listener ) {
202  if ( !eventName || !listener ) {
203    return;
204  }
205  // add event
206  this.on( eventName, listener );
207  // set once flag
208  // set onceEvents hash
209  var onceEvents = this._onceEvents = this._onceEvents || {};
210  // set onceListeners object
211  var onceListeners = onceEvents[ eventName ] = onceEvents[ eventName ] || {};
212  // set flag
213  onceListeners[ listener ] = true;
214
215  return this;
216};
217
218proto.off = function( eventName, listener ) {
219  var listeners = this._events && this._events[ eventName ];
220  if ( !listeners || !listeners.length ) {
221    return;
222  }
223  var index = listeners.indexOf( listener );
224  if ( index != -1 ) {
225    listeners.splice( index, 1 );
226  }
227
228  return this;
229};
230
231proto.emitEvent = function( eventName, args ) {
232  var listeners = this._events && this._events[ eventName ];
233  if ( !listeners || !listeners.length ) {
234    return;
235  }
236  // copy over to avoid interference if .off() in listener
237  listeners = listeners.slice(0);
238  args = args || [];
239  // once stuff
240  var onceListeners = this._onceEvents && this._onceEvents[ eventName ];
241
242  for ( var i=0; i < listeners.length; i++ ) {
243    var listener = listeners[i]
244    var isOnce = onceListeners && onceListeners[ listener ];
245    if ( isOnce ) {
246      // remove listener
247      // remove before trigger to prevent recursion
248      this.off( eventName, listener );
249      // unset once flag
250      delete onceListeners[ listener ];
251    }
252    // trigger listener
253    listener.apply( this, args );
254  }
255
256  return this;
257};
258
259proto.allOff = function() {
260  delete this._events;
261  delete this._onceEvents;
262};
263
264return EvEmitter;
265
266}));
267
268/*!
269 * getSize v2.0.3
270 * measure size of elements
271 * MIT license
272 */
273
274/* jshint browser: true, strict: true, undef: true, unused: true */
275/* globals console: false */
276
277( function( window, factory ) {
278  /* jshint strict: false */ /* globals define, module */
279  if ( typeof define == 'function' && define.amd ) {
280    // AMD
281    define( 'get-size/get-size',factory );
282  } else if ( typeof module == 'object' && module.exports ) {
283    // CommonJS
284    module.exports = factory();
285  } else {
286    // browser global
287    window.getSize = factory();
288  }
289
290})( window, function factory() {
291'use strict';
292
293// -------------------------- helpers -------------------------- //
294
295// get a number from a string, not a percentage
296function getStyleSize( value ) {
297  var num = parseFloat( value );
298  // not a percent like '100%', and a number
299  var isValid = value.indexOf('%') == -1 && !isNaN( num );
300  return isValid && num;
301}
302
303function noop() {}
304
305var logError = typeof console == 'undefined' ? noop :
306  function( message ) {
307    console.error( message );
308  };
309
310// -------------------------- measurements -------------------------- //
311
312var measurements = [
313  'paddingLeft',
314  'paddingRight',
315  'paddingTop',
316  'paddingBottom',
317  'marginLeft',
318  'marginRight',
319  'marginTop',
320  'marginBottom',
321  'borderLeftWidth',
322  'borderRightWidth',
323  'borderTopWidth',
324  'borderBottomWidth'
325];
326
327var measurementsLength = measurements.length;
328
329function getZeroSize() {
330  var size = {
331    width: 0,
332    height: 0,
333    innerWidth: 0,
334    innerHeight: 0,
335    outerWidth: 0,
336    outerHeight: 0
337  };
338  for ( var i=0; i < measurementsLength; i++ ) {
339    var measurement = measurements[i];
340    size[ measurement ] = 0;
341  }
342  return size;
343}
344
345// -------------------------- getStyle -------------------------- //
346
347/**
348 * getStyle, get style of element, check for Firefox bug
349 * https://bugzilla.mozilla.org/show_bug.cgi?id=548397
350 */
351function getStyle( elem ) {
352  var style = getComputedStyle( elem );
353  if ( !style ) {
354    logError( 'Style returned ' + style +
355      '. Are you running this code in a hidden iframe on Firefox? ' +
356      'See https://bit.ly/getsizebug1' );
357  }
358  return style;
359}
360
361// -------------------------- setup -------------------------- //
362
363var isSetup = false;

364
365var isBoxSizeOuter;
366
367/**
368 * setup
369 * check isBoxSizerOuter
370 * do on first getSize() rather than on page load for Firefox bug
371 */
372function setup() {
373  // setup once
374  if ( isSetup ) {
375    return;
376  }
377  isSetup = true;
378
379  // -------------------------- box sizing -------------------------- //
380
381  /**
382   * Chrome & Safari measure the outer-width on style.width on border-box elems
383   * IE11 & Firefox<29 measures the inner-width
384   */
385  var div = document.createElement('div');
386  div.style.width = '200px';
387  div.style.padding = '1px 2px 3px 4px';
388  div.style.borderStyle = 'solid';
389  div.style.borderWidth = '1px 2px 3px 4px';
390  div.style.boxSizing = 'border-box';
391
392  var body = document.body || document.documentElement;
393  body.appendChild( div );
394  var style = getStyle( div );
395  // round value for browser zoom. desandro/masonry#928
396  isBoxSizeOuter = Math.round( getStyleSize( style.width ) ) == 200;
397  getSize.isBoxSizeOuter = isBoxSizeOuter;
398
399  body.removeChild( div );
400}
401
402// -------------------------- getSize -------------------------- //
403
404function getSize( elem ) {
405  setup();
406
407  // use querySeletor if elem is string
408  if ( typeof elem == 'string' ) {
409    elem = document.querySelector( elem );
410  }
411
412  // do not proceed on non-objects
413  if ( !elem || typeof elem != 'object' || !elem.nodeType ) {
414    return;
415  }
416
417  var style = getStyle( elem );
418
419  // if hidden, everything is 0
420  if ( style.display == 'none' ) {
421    return getZeroSize();
422  }
423
424  var size = {};
425  size.width = elem.offsetWidth;
426  size.height = elem.offsetHeight;
427
428  var isBorderBox = size.isBorderBox = style.boxSizing == 'border-box';
429
430  // get all measurements
431  for ( var i=0; i < measurementsLength; i++ ) {
432    var measurement = measurements[i];
433    var value = style[ measurement ];
434    var num = parseFloat( value );
435    // any 'auto', 'medium' value will be 0
436    size[ measurement ] = !isNaN( num ) ? num : 0;
437  }
438
439  var paddingWidth = size.paddingLeft + size.paddingRight;
440  var paddingHeight = size.paddingTop + size.paddingBottom;
441  var marginWidth = size.marginLeft + size.marginRight;
442  var marginHeight = size.marginTop + size.marginBottom;
443  var borderWidth = size.borderLeftWidth + size.borderRightWidth;
444  var borderHeight = size.borderTopWidth + size.borderBottomWidth;
445
446  var isBorderBoxSizeOuter = isBorderBox && isBoxSizeOuter;
447
448  // overwrite width and height if we can get it from style
449  var styleWidth = getStyleSize( style.width );
450  if ( styleWidth !== false ) {
451    size.width = styleWidth +
452      // add padding and border unless it's already including it
453      ( isBorderBoxSizeOuter ? 0 : paddingWidth + borderWidth );
454  }
455
456  var styleHeight = getStyleSize( style.height );
457  if ( styleHeight !== false ) {
458    size.height = styleHeight +
459      // add padding and border unless it's already including it
460      ( isBorderBoxSizeOuter ? 0 : paddingHeight + borderHeight );
461  }
462
463  size.innerWidth = size.width - ( paddingWidth + borderWidth );
464  size.innerHeight = size.height - ( paddingHeight + borderHeight );
465
466  size.outerWidth = size.width + marginWidth;
467  size.outerHeight = size.height + marginHeight;
468
469  return size;
470}
471
472return getSize;
473
474});
475
476/**
477 * matchesSelector v2.0.2
478 * matchesSelector( element, '.selector' )
479 * MIT license
480 */
481
482/*jshint browser: true, strict: true, undef: true, unused: true */
483
484( function( window, factory ) {
485  /*global define: false, module: false */
486  'use strict';
487  // universal module definition
488  if ( typeof define == 'function' && define.amd ) {
489    // AMD
490    define( 'desandro-matches-selector/matches-selector',factory );
491  } else if ( typeof module == 'object' && module.exports ) {
492    // CommonJS
493    module.exports = factory();
494  } else {
495    // browser global
496    window.matchesSelector = factory();
497  }
498
499}( window, function factory() {
500  'use strict';
501
502  var matchesMethod = ( function() {
503    var ElemProto = window.Element.prototype;
504    // check for the standard method name first
505    if ( ElemProto.matches ) {
506      return 'matches';
507    }
508    // check un-prefixed
509    if ( ElemProto.matchesSelector ) {
510      return 'matchesSelector';
511    }
512    // check vendor prefixes
513    var prefixes = [ 'webkit', 'moz', 'ms', 'o' ];
514
515    for ( var i=0; i < prefixes.length; i++ ) {
516      var prefix = prefixes[i];
517      var method = prefix + 'MatchesSelector';
518      if ( ElemProto[ method ] ) {
519        return method;
520      }
521    }
522  })();
523
524  return function matchesSelector( elem, selector ) {
525    return elem[ matchesMethod ]( selector );
526  };
527
528}));
529
530/**
531 * Fizzy UI utils v2.0.7
532 * MIT license
533 */
534
535/*jshint browser: true, undef: true, unused: true, strict: true */
536
537( function( window, factory ) {
538  // universal module definition
539  /*jshint strict: false */ /*globals define, module, require */
540
541  if ( typeof define == 'function' && define.amd ) {
542    // AMD
543    define( 'fizzy-ui-utils/utils',[
544      'desandro-matches-selector/matches-selector'
545    ], function( matchesSelector ) {
546      return factory( window, matchesSelector );
547    });
548  } else if ( typeof module == 'object' && module.exports ) {
549    // CommonJS
550    module.exports = factory(
551      window,
552      require('desandro-matches-selector')
553    );
554  } else {
555    // browser global
556    window.fizzyUIUtils = factory(
557      window,
558      window.matchesSelector
559    );
560  }
561
562}( window, function factory( window, matchesSelector ) {
563
564
565
566var utils = {};
567
568// ----- extend ----- //
569
570// extends objects
571utils.extend = function( a, b ) {
572  for ( var prop in b ) {
573    a[ prop ] = b[ prop ];
574  }
575  return a;
576};
577
578// ----- modulo ----- //
579
580utils.modulo = function( num, div ) {
581  return ( ( num % div ) + div ) % div;
582};
583
584// ----- makeArray ----- //
585
586var arraySlice = Array.prototype.slice;
587
588// turn element or nodeList into an array
589utils.makeArray = function( obj ) {
590  if ( Array.isArray( obj ) ) {
591    // use object if already an array
592    return obj;
593  }
594  // return empty array if undefined or null. #6
595  if ( obj === null || obj === undefined ) {
596    return [];
597  }
598
599  var isArrayLike = typeof obj == 'object' && typeof obj.length == 'number';
600  if ( isArrayLike ) {
601    // convert nodeList to array
602    return arraySlice.call( obj );
603  }
604
605  // array of single index
606  return [ obj ];
607};
608
609// ----- removeFrom ----- //
610
611utils.removeFrom = function( ary, obj ) {
612  var index = ary.indexOf( obj );
613  if ( index != -1 ) {
614    ary.splice( index, 1 );
615  }
616};
617
618// ----- getParent ----- //
619
620utils.getParent = function( elem, selector ) {
621  while ( elem.parentNode && elem != document.body ) {
622    elem = elem.parentNode;
623    if ( matchesSelector( elem, selector ) ) {
624      return elem;
625    }
626  }
627};
628
629// ----- getQueryElement ----- //
630
631// use element as selector string
632utils.getQueryElement = function( elem ) {
633  if ( typeof elem == 'string' ) {
634    return document.querySelector( elem );
635  }
636  return elem;
637};
638
639// ----- handleEvent ----- //
640
641// enable .ontype to trigger from .addEventListener( elem, 'type' )
642utils.handleEvent = function( event ) {
643  var method = 'on' + event.type;
644  if ( this[ method ] ) {
645    this[ method ]( event );
646  }
647};
648
649// ----- filterFindElements ----- //
650
651utils.filterFindElements = function( elems, selector ) {
652  // make array of elems
653  elems = utils.makeArray( elems );
654  var ffElems = [];
655
656  elems.forEach( function( elem ) {
657    // check that elem is an actual element
658    

661
662      return;
663    }
664    // add elem if no selector
665    if ( !selector ) {
666      ffElems.push( elem );
667      return;
668    }
669    // filter & find items if we have a selector
670    // filter
671    if ( matchesSelector( elem, selector ) ) {
672      ffElems.push( elem );
673    }
674    // find children
675    var childElems = elem.querySelectorAll( selector );
676    // concat childElems to filterFound array
677    for ( var i=0; i < childElems.length; i++ ) {
678      ffElems.push( childElems[i] );
679    }
680  });
681
682  return ffElems;
683};
684
685// ----- debounceMethod ----- //
686
687utils.debounceMethod = function( _class, methodName, threshold ) {
688  threshold = threshold || 100;
689  // original method
690  var method = _class.prototype[ methodName ];
691  var timeoutName = methodName + 'Timeout';
692
693  _class.prototype[ methodName ] = function() {
694    var timeout = this[ timeoutName ];
695    clearTimeout( timeout );
696
697    var args = arguments;
698    var _this = this;
699    this[ timeoutName ] = setTimeout( function() {
700      method.apply( _this, args );
701      delete _this[ timeoutName ];
702    }, threshold );
703  };
704};
705
706// ----- docReady ----- //
707
708utils.docReady = function( callback ) {
709  var readyState = document.readyState;
710  if ( readyState == 'complete' || readyState == 'interactive' ) {
711    // do async to allow for other scripts to run. metafizzy/flickity#441
712    setTimeout( callback );
713  } else {
714    document.addEventListener( 'DOMContentLoaded', callback );
715  }
716};
717
718// ----- htmlInit ----- //
719
720// http://jamesroberts.name/blog/2010/02/22/string-functions-for-javascript-trim-to-camel-case-to-dashed-and-to-underscore/
721utils.toDashed = function( str ) {
722  return str.replace( /(.)([A-Z])/g, function( match, $1, $2 ) {
723    return $1 + '-' + $2;
724  }).toLowerCase();
725};
726
727var console = window.console;
728/**
729 * allow user to initialize classes via [data-namespace] or .js-namespace class
730 * htmlInit( Widget, 'widgetName' )
731 * options are parsed from data-namespace-options
732 */
733utils.htmlInit = function( WidgetClass, namespace ) {
734  utils.docReady( function() {
735    var dashedNamespace = utils.toDashed( namespace );
736    var dataAttr = 'data-' + dashedNamespace;
737    var dataAttrElems = document.querySelectorAll( '[' + dataAttr + ']' );
738    var jsDashElems = document.querySelectorAll( '.js-' + dashedNamespace );
739    var elems = utils.makeArray( dataAttrElems )
740      .concat( utils.makeArray( jsDashElems ) );
741    var dataOptionsAttr = dataAttr + '-options';
742    var jQuery = window.jQuery;
743
744    elems.forEach( function( elem ) {
745      var attr = elem.getAttribute( dataAttr ) ||
746        elem.getAttribute( dataOptionsAttr );
747      var options;
748      try {
749        options = attr && JSON.parse( attr );
750      } catch ( error ) {
751        // log error, do not initialize
752        if ( console ) {
753          console.error( 'Error parsing ' + dataAttr + ' on ' + elem.className +
754          ': ' + error );
755        }
756        return;
757      }
758      // initialize
759      var instance = new WidgetClass( elem, options );
760      // make available via $().data('namespace')
761      if ( jQuery ) {
762        jQuery.data( elem, namespace, instance );
763      }
764    });
765
766  });
767};
768
769// -----  ----- //
770
771return utils;
772
773}));
774
775/**
776 * Outlayer Item
777 */
778
779( function( window, factory ) {
780  // universal module definition
781  /* jshint strict: false */ /* globals define, module, require */
782  if ( typeof define == 'function' && define.amd ) {
783    // AMD - RequireJS
784    define( 'outlayer/item',[
785        'ev-emitter/ev-emitter',
786        'get-size/get-size'
787      ],
788      factory
789    );
790  } else if ( typeof module == 'object' && module.exports ) {
791    // CommonJS - Browserify, Webpack
792    module.exports = factory(
793      require('ev-emitter'),
794      require('get-size')
795    );
796  } else {
797    // browser global
798    window.Outlayer = {};
799    window.Outlayer.Item = factory(
800      window.EvEmitter,
801      window.getSize
802    );
803  }
804
805}( window, function factory( EvEmitter, getSize ) {
806'use strict';
807
808// ----- helpers ----- //
809
810function isEmptyObj( obj ) {
811  for ( var prop in obj ) {
812    return false;
813  }
814  prop = null;
815  return true;
816}
817
818// -------------------------- CSS3 support -------------------------- //
819
820
821var docElemStyle = document.documentElement.style;
822
823var transitionProperty = typeof docElemStyle.transition == 'string' ?
824  'transition' : 'WebkitTransition';
825var transformProperty = typeof docElemStyle.transform == 'string' ?
826  'transform' : 'WebkitTransform';
827
828var transitionEndEvent = {
829  WebkitTransition: 'webkitTransitionEnd',
830  transition: 'transitionend'
831}[ transitionProperty ];
832
833// cache all vendor properties that could have vendor prefix
834var vendorProperties = {
835  transform: transformProperty,
836  transition: transitionProperty,
837  transitionDuration: transitionProperty + 'Duration',
838  transitionProperty: transitionProperty + 'Property',
839  transitionDelay: transitionProperty + 'Delay'
840};
841
842// -------------------------- Item -------------------------- //
843
844function Item( element, layout ) {
845  if ( !element ) {
846    return;
847  }
848
849  this.element = element;
850  // parent layout class, i.e. Masonry, Isotope, or Packery
851  this.layout = layout;
852  this.position = {
853    x: 0,
854    y: 0
855  };
856
857  this._create();
858}
859
860// inherit EvEmitter
861var proto = Item.prototype = Object.create( EvEmitter.prototype );
862proto.constructor = Item;
863
864proto._create = function() {
865  // transition objects
866  this._transn = {
867    ingProperties: {},
868    clean: {},
869    onEnd: {}
870  };
871
872  this.css({
873    position: 'absolute'
874  });
875};
876
877// trigger specified handler for event type
878proto.handleEvent = function( event ) {
879  var method = 'on' + event.type;
880  if ( this[ method ] ) {
881    this[ method ]( event );
882  }
883};
884
885proto.getSize = function() {
886  this.size = getSize( this.element );
887};
888
889/**
890 * apply CSS styles to element
891 * @param {Object} style
892 */
893proto.css = function( style ) {
894  var elemStyle = this.element.style;
895
896  for ( var prop in style ) {
897    // use vendor property if available
898    var supportedProp = vendorProperties[ prop ] || prop;
899    elemStyle[ supportedProp ] = style[ prop ];
900  }
901};
902
903 // measure position, and sets it
904proto.getPosition = function() {
905  var style = getComputedStyle( this.element );
906  var isOriginLeft = this.layout._getOption('originLeft');
907  var isOriginTop = this.layout._getOption('originTop');
908  var xValue = style[ isOriginLeft ? 'left' : 'right' ];
909  var yValue = style[ isOriginTop ? 'top' : 'bottom' ];
910  var x = parseFloat( xValue );
911  var y = parseFloat( yValue );
912  // convert percent to pixels
913  var layoutSize = this.layout.size;
914  if ( xValue.indexOf('%') != -1 ) {
915    x = ( x / 100 ) * layoutSize.width;
916  }
917  if ( yValue.indexOf('%') != -1 ) {
918    y = ( y / 100 ) * layoutSize.height;
919  }
920  // clean up 'auto' or other non-integer values
921  x = isNaN( x ) ? 0 : x;
922  y = isNaN( y ) ? 0 : y;
923  // remove padding from measurement
924  x -= isOriginLeft ? layoutSize.paddingLeft : layoutSize.paddingRight;
925  y -= isOriginTop ? layoutSize.paddingTop : layoutSize.paddingBottom;
926
927  this.position.x = x;
928  this.position.y = y;
929};
930
931// set settled position, apply padding
932proto.layoutPosition = function() {
933  var layoutSize = this.layout.size;
934  var style = {};
935  var isOriginLeft = this.layout._getOption('originLeft');
936  var isOriginTop = this.layout._getOption('originTop');
937
938  // x
939  var xPadding = isOriginLeft ? 'paddingLeft' : 'paddingRight';
940  var xProperty = isOriginLeft ? 'left' : 'right';
941  var xResetProperty = isOriginLeft ? 'right' : 'left';
942
943  var x = this.position.x + layoutSize[ xPadding ];
944  // set in percentage or pixels
945  style[ xProperty ] = this.getXValue( x );
946  // reset other property
947  style[ xResetProperty ] = '';
948
949  // y
950  var yPadding = isOriginTop ? 'paddingTop' : 'paddingBottom';
951  var yProperty = isOriginTop ? 'top' : 'bottom';
952  var yResetProperty = isOriginTop ? 'bottom' : 'top';
953
954  var y = this.position.y + layoutSize[ yPadding ];
955  // set in percentage or pixels
956  style[ yProperty ] = this.getYValue( y );
957  // reset other property
958  style[ yResetProperty ] = '';
959
960  this.css( style );
961  this.emitEvent( 'layout', [ this ] );
962};
963
964proto.getXValue = function( x ) {
965  var isHorizontal = this.layout._getOption('horizontal');
966  return this.layout.options.percentPosition && !isHorizontal ?
967    ( ( x / this.layout.size.width ) * 100 ) + '%' : x + 'px';
968};
969
970proto.getYValue = function( y ) {
971  var isHorizontal = this.layout._getOption('horizontal');
972  return this.layout.options.percentPosition && isHorizontal ?
973    ( ( y / this.layout.size.height ) * 100 ) + '%' : y + 'px';
974};
975
976proto._transitionTo = function( x, y ) {
977  this.getPosition();
978  // get current x & y from top/left
979  var curX = this.position.x;
980  var curY = this.position.y;
981
982  var didNotMove = x == this.position.x && y == this.position.y;
983
984  // save end position
985  this.setPosition( x, y );
986
987  // if did not move and not transitioning, just go to layout
988  if ( didNotMove && !this.isTransitioning ) {
989    this.layoutPosition();
990    return;
991  }
992
993  var transX = x - curX;
994  var transY = y - curY;
995  var transitionStyle = {};
996  transitionStyle.transform = this.getTranslate( transX, transY );
997
998  this.transition({
999    to: transitionStyle,
1000    onTransitionEnd: {
1001      transform: this.layoutPosition
1002    },
1003    isCleaning: true
1004  });
1005};
1006
1007proto.getTranslate = function( x, y ) {
1008  // flip cooridinates if origin on right or bottom
1009  var isOriginLeft = this.layout._getOption('originLeft');
1010  var isOriginTop = this.layout._getOption('originTop');
1011  x = isOriginLeft ? x : -x;
1012  y = isOriginTop ? y : -y;
1013  return 'translate3d(' + x + 'px, ' + y + 'px, 0)';
1014};
1015
1016// non transition + transform support
1017proto.goTo = function( x, y ) {
1018  this.setPosition( x, y );
1019  this.layoutPosition();
1020};
1021
1022proto.moveTo = proto._transitionTo;
1023
1024proto.setPosition = function( x, y ) {
1025  this.position.x = parseFloat( x );
1026  this.position.y = parseFloat( y );
1027};
1028
1029// ----- transition ----- //
1030
1031/**
1032 * @param {Object} style - CSS
1033 * @param {Function} onTransitionEnd
1034 */
1035
1036// non transition, just trigger callback
1037proto._nonTransition = function( args ) {
1038  this.css( args.to );
1039  if ( args.isCleaning ) {
1040    this._removeStyles( args.to );
1041  }
1042  for ( var prop in args.onTransitionEnd ) {
1043    args.onTransitionEnd[ prop ].call( this );
1044  }
1045};
1046
1047/**
1048 * proper transition
1049 * @param {Object} args - arguments
1050 *   @param {Object} to - style to transition to
1051 *   @param {Object} from - style to start transition from
1052 *   @param {Boolean} isCleaning - removes transition styles after transition
1053 *   @param {Function} onTransitionEnd - callback
1054 */
1055proto.transition = function( args ) {
1056  // redirect to nonTransition if no transition duration
1057  if ( !parseFloat( this.layout.options.transitionDuration ) ) {
1058    this._nonTransition( args );
1059    return;
1060  }
1061
1062  var _transition = this._transn;
1063  // keep track of onTransitionEnd callback by css property
1064  for ( var prop in args.onTransitionEnd ) {
1065    _transition.onEnd[ prop ] = args.onTransitionEnd[ prop ];
1066  }
1067  // keep track of properties that are transitioning
1068  for ( prop in args.to ) {
1069    _transition.ingProperties[ prop ] = true;
1070    // keep track of properties to clean up when transition is done
1071    if ( args.isCleaning ) {
1072      _transition.clean[ prop ] = true;
1073    }
1074  }
1075
1076  // set from styles
1077  if ( args.from ) {
1078    this.css( args.from );
1079    // force redraw. http://blog.alexmaccaw.com/css-transitions
1080    var h = this.element.offsetHeight;
1081    // hack for JSHint to hush about unused var
1082    h = null;
1083  }
1084  // enable transition
1085  this.enableTransition( args.to );
1086  // set styles that are transitioning
1087  this.css( args.to );
1088
1089  this.isTransitioning = true;
1090
1091};
1092
1093// dash before all cap letters, including first for
1094// WebkitTransform => -webkit-transform
1095function toDashedAll( str ) {
1096  return str.replace( /([A-Z])/g, function( $1 ) {
1097    return '-' + $1.toLowerCase();
1098  });
1099}
1100
1101var transitionProps = 'opacity,' + toDashedAll( transformProperty );
1102
1103proto.enableTransition = function(/* style */) {
1104  // HACK changing transitionProperty during a transition
1105  // will cause transition to jump
1106  if ( this.isTransitioning ) {
1107    return;
1108  }
1109
1110  // make `transition: foo, bar, baz` from style object
1111  // HACK un-comment this when enableTransition can work
1112  // while a transition is happening
1113  // var transitionValues = [];
1114  // for ( var prop in style ) {
1115  //   // dash-ify camelCased properties like WebkitTransition
1116  //   prop = vendorProperties[ prop ] || prop;
1117  //   transitionValues.push( toDashedAll( prop ) );
1118  // }
1119  // munge number to millisecond, to match stagger
1120  var duration = this.layout.options.transitionDuration;
1121  duration = typeof duration == 'number' ? duration + 'ms' : duration;
1122  // enable transition styles
1123  this.css({
1124    transitionProperty: transitionProps,
1125    transitionDuration: duration,
1126    transitionDelay: this.staggerDelay || 0
1127  });
1128  // listen for transition end event
1129  this.element.addEventListener( transitionEndEvent, this, false );
1130};
1131
1132// ----- events ----- //
1133
1134proto.onwebkitTransitionEnd = function( event ) {
1135  this.ontransitionend( event );
1136};
1137
1138proto.onotransitionend = function( event ) {
1139  this.ontransitionend( event );
1140};
1141
1142// properties that I munge to make my life easier
1143var dashedVendorProperties = {
1144  '-webkit-transform': 'transform'
1145};
1146
1147proto.ontransitionend = function( event ) {
1148  // disregard bubbled events from children
1149  if ( event.target !== this.element ) {
1150    return;
1151  }
1152  var _transition = this._transn;
1153  // get property name of transitioned property, convert to prefix-free
1154  var propertyName = dashedVendorProperties[ event.propertyName ] || event.propertyName;
1155
1156  // remove property that has completed transitioning
1157  delete _transition.ingProperties[ propertyName ];
1158  // check if any properties are still transitioning
1159  if ( isEmptyObj( _transition.ingProperties ) ) {
1160    // all properties have completed transitioning
1161    this.disableTransition();
1162  }
1163  // clean style
1164  if ( propertyName in _transition.clean ) {
1165    // clean up style
1166    this.element.style[ event.propertyName ] = '';
1167    delete _transition.clean[ propertyName ];
1168  }
1169  // trigger onTransitionEnd callback
1170  if ( propertyName in _transition.onEnd ) {
1171    var onTransitionEnd = _transition.onEnd[ propertyName ];
1172    onTransitionEnd.call( this );
1173    delete _transition.onEnd[ propertyName ];
1174  }
1175
1176  this.emitEvent( 'transitionEnd', [ this ] );
1177};
1178
1179proto.disableTransition = function() {
1180  this.removeTransitionStyles();
1181  this.element.removeEventListener( transitionEndEvent, this, false );
1182  this.isTransitioning = false;
1183};
1184
1185/**
1186 * removes style property from element
1187 * @param {Object} style
1188**/
1189proto._removeStyles = function( style ) {
1190  // clean up transition styles
1191  var cleanStyle = {};
1192  for ( var prop in style ) {
1193    cleanStyle[ prop ] = '';
1194  }
1195  this.css( cleanStyle );
1196};
1197
1198var cleanTransitionStyle = {
1199  transitionProperty: '',
1200  transitionDuration: '',
1201  transitionDelay: ''
1202};
1203
1204proto.removeTransitionStyles = function() {
1205  // remove transition
1206  this.css( cleanTransitionStyle );
1207};
1208
1209// ----- stagger ----- //
1210
1211proto.stagger = function( delay ) {
1212  delay = isNaN( delay ) ? 0 : delay;
1213  this.staggerDelay = delay + 'ms';
1214};
1215
1216// ----- show/hide/remove ----- //
1217
1218// remove element from DOM
1219proto.removeElem = function() {
1220  this.element.parentNode.removeChild( this.element );
1221  // remove display: none
1222  this.css({ display: '' });
1223  this.emitEvent( 'remove', [ this ] );
1224};
1225
1226proto.remove = function() {
1227  // just remove element if no transition support or no transition
1228  if ( !transitionProperty || !parseFloat( this.layout.options.transitionDuration ) ) {
1229    this.removeElem();
1230    return;
1231  }
1232
1233  // start transition
1234  this.once( 'transitionEnd', function() {
1235    this.removeElem();
1236  });
1237  this.hide();
1238};
1239
1240proto.reveal = function() {
1241  delete this.isHidden;
1242  // remove display: none
1243  this.css({ display: '' });
1244
1245  var options = this.layout.options;
1246
1247  var onTransitionEnd = {};
1248  var transitionEndProperty = this.getHideRevealTransitionEndProperty('visibleStyle');
1249  onTransitionEnd[ transitionEndProperty ] = this.onRevealTransitionEnd;
1250
1251  this.transition({
1252    from: options.hiddenStyle,
1253    to: options.visibleStyle,
1254    isCleaning: true,
1255    onTransitionEnd: onTransitionEnd
1256  });
1257};
1258
1259proto.onRevealTransitionEnd = function() {
1260  // check if still visible
1261  // during transition, item may have been hidden
1262  if ( !this.isHidden ) {
1263    this.emitEvent('reveal');
1264  }
1265};
1266
1267/**
1268 * get style property use for hide/reveal transition end
1269 * @param {String} styleProperty - hiddenStyle/visibleStyle
1270 * @returns {String}
1271 */
1272proto.getHideRevealTransitionEndProperty = function( styleProperty ) {
1273  var optionStyle = this.layout.options[ styleProperty ];
1274  // use opacity
1275  if ( optionStyle.opacity ) {
1276    return 'opacity';
1277  }
1278  // get first property
1279  for ( var prop in optionStyle ) {
1280    return prop;
1281  }
1282};
1283
1284proto.hide = function() {
1285  // set flag
1286  this.isHidden = true;
1287  // remove display: none
1288  this.css({ display: '' });
1289
1290  var options = this.layout.options;
1291
1292  var onTransitionEnd = {};
1293  var transitionEndProperty = this.getHideRevealTransitionEndProperty('hiddenStyle');
1294  onTransitionEnd[ transitionEndProperty ] = this.onHideTransitionEnd;
1295
1296  this.transition({
1297    from: options.visibleStyle,
1298    to: options.hiddenStyle,
1299    // keep hidden stuff hidden
1300    isCleaning: true,
1301    onTransitionEnd: onTransitionEnd
1302  });
1303};
1304
1305proto.onHideTransitionEnd = function() {
1306  // check if still hidden
1307  // during transition, item may have been un-hidden
1308  if ( this.isHidden ) {
1309    this.css({ display: 'none' });
1310    this.emitEvent('hide');
1311  }
1312};
1313
1314proto.destroy = function() {
1315  this.css({
1316    position: '',
1317    left: '',
1318    right: '',
1319    top: '',
1320    bottom: '',
1321    transition: '',
1322    transform: ''
1323  });
1324};
1325
1326return Item;
1327
1328}));
1329
1330/*!
1331 * Outlayer v2.1.1
1332 * the brains and guts of a layout library
1333 * MIT license
1334 */
1335
1336( function( window, factory ) {
1337  'use strict';
1338  // universal module definition
1339  /* jshint strict: false */ /* globals define, module, require */
1340  if ( typeof define == 'function' && define.amd ) {
1341    // AMD - RequireJS
1342    define( 'outlayer/outlayer',[
1343        'ev-emitter/ev-emitter',
1344        'get-size/get-size',
1345        'fizzy-ui-utils/utils',
1346        './item'
1347      ],
1348      function( EvEmitter, getSize, utils, Item ) {
1349        return factory( window, EvEmitter, getSize, utils, Item);
1350      }
1351    );
1352  } else if ( typeof module == 'object' && module.exports ) {
1353    // CommonJS - Browserify, Webpack
1354    module.exports = factory(
1355      window,
1356      require('ev-emitter'),
1357      require('get-size'),
1358      require('fizzy-ui-utils'),
1359      require('./item')
1360    );
1361  } else {
1362    // browser global
1363    window.Outlayer = factory(
1364      window,
1365      window.EvEmitter,
1366      window.getSize,
1367      window.fizzyUIUtils,
1368      window.Outlayer.Item
1369    );
1370  }
1371
1372}( window, function factory( window, EvEmitter, getSize, utils, Item ) {
1373'use strict';
1374
1375// ----- vars ----- //
1376
1377var console = window.console;
1378var jQuery = window.jQuery;
1379var noop = function() {};
1380
1381// -------------------------- Outlayer -------------------------- //
1382
1383// globally unique identifiers
1384var GUID = 0;
1385// internal store of all Outlayer intances
1386var instances = {};
1387
1388
1389/**
1390 * @param {Element, String} element
1391 * @param {Object} options
1392 * @constructor
1393 */
1394function Outlayer( element, options ) {
1395  var queryElement = utils.getQueryElement( element );
1396  if ( !queryElement ) {
1397    if ( console ) {
1398      console.error( 'Bad element for ' + this.constructor.namespace +
1399        ': ' + ( queryElement || element ) );
1400    }
1401    return;
1402  }
1403  this.element = queryElement;
1404  // add jQuery
1405  if ( jQuery ) {
1406    this.$element = jQuery( this.element );
1407  }
1408
1409  // options
1410  this.options = utils.extend( {}, this.constructor.defaults );
1411  this.option( options );
1412
1413  // add id for Outlayer.getFromElement
1414  var id = ++GUID;
1415  this.element.outlayerGUID = id; // expando
1416  instances[ id ] = this; // associate via id
1417
1418  // kick it off
1419  this._create();
1420
1421  var isInitLayout = this._getOption('initLayout');
1422  if ( isInitLayout ) {
1423    this.layout();
1424  }
1425}
1426
1427// settings are for internal use only
1428Outlayer.namespace = 'outlayer';
1429Outlayer.Item = Item;
1430
1431// default options
1432Outlayer.defaults = {
1433  containerStyle: {
1434    position: 'relative'
1435  },
1436  initLayout: true,
1437  originLeft: true,
1438  originTop: true,
1439  resize: true,
1440  resizeContainer: true,
1441  // item options
1442  transitionDuration: '0.4s',
1443  hiddenStyle: {
1444    opacity: 0,
1445    transform: 'scale(0.001)'
1446  },
1447  visibleStyle: {
1448    opacity: 1,
1449    transform: 'scale(1)'
1450  }
1451};
1452
1453var proto = Outlayer.prototype;
1454// inherit EvEmitter
1455utils.extend( proto, EvEmitter.prototype );
1456
1457/**
1458 * set options
1459 * @param {Object} opts
1460 */
1461proto.option = function( opts ) {
1462  utils.extend( this.options, opts );
1463};
1464
1465/**
1466 * get backwards compatible option value, check old name
1467 */
1468proto._getOption = function( option ) {
1469  var oldOption = this.constructor.compatOptions[ option ];
1470  return oldOption && this.options[ oldOption ] !== undefined ?
1471    this.options[ oldOption ] : this.options[ option ];
1472};
1473
1474Outlayer.compatOptions = {
1475  // currentName: oldName
1476  initLayout: 'isInitLayout',
1477  horizontal: 'isHorizontal',
1478  layoutInstant: 'isLayoutInstant',
1479  originLeft: 'isOriginLeft',
1480  originTop: 'isOriginTop',
1481  resize: 'isResizeBound',
1482  resizeContainer: 'isResizingContainer'
1483};
1484
1485proto._create = function() {
1486  // get items from children
1487  this.reloadItems();
1488  // elements that affect layout, but are not laid out
1489  this.stamps = [];
1490  this.stamp( this.options.stamp );
1491  // set container style
1492  utils.extend( this.element.style, this.options.containerStyle );
1493
1494  // bind resize method
1495  var canBindResize = this._getOption('resize');
1496  if ( canBindResize ) {
1497    this.bindResize();
1498  }
1499};
1500
1501// goes through all children again and gets bricks in proper order
1502proto.reloadItems = function() {
1503  // collection of item elements
1504  this.items = this._itemize( this.element.children );
1505};
1506
1507
1508/**
1509 * turn elements into Outlayer.Items to be used in layout
1510 * @param {Array or NodeList or HTMLElement} elems
1511 * @returns {Array} items - collection of new Outlayer Items
1512 */
1513proto._itemize = function( elems ) {
1514
1515  var itemElems = this._filterFindItemElements( elems );
1516  var Item = this.constructor.Item;
1517
1518  // create new Outlayer Items for collection
1519  var items = [];
1520  for ( var i=0; i < itemElems.length; i++ ) {
1521    var elem = itemElems[i];
1522    var item = new Item( elem, this );
1523    items.push( item );
1524  }
1525
1526  return items;
1527};
1528
1529/**
1530 * get item elements to be used in layout
1531 * @param {Array or NodeList or HTMLElement} elems
1532 * @returns {Array} items - item elements
1533 */
1534proto._filterFindItemElements = function( elems ) {
1535  return utils.filterFindElements( elems, this.options.itemSelector );
1536};
1537
1538/**
1539 * getter method for getting item elements
1540 * @returns {Array} elems - collection of item elements
1541 */
1542proto.getItemElements = function() {
1543  return this.items.map( function( item ) {
1544    return item.element;
1545  });
1546};
1547
1548// ----- init & layout ----- //
1549
1550/**
1551 * lays out all items
1552 */
1553proto.layout = function() {
1554  this._resetLayout();
1555  this._manageStamps();
1556
1557  // don't animate first layout
1558  var layoutInstant = this._getOption('layoutInstant');
1559  var isInstant = layoutInstant !== undefined ?
1560    layoutInstant : !this._isLayoutInited;
1561  this.layoutItems( this.items, isInstant );
1562
1563  // flag for initalized
1564  this._isLayoutInited = true;
1565};
1566
1567// _init is alias for layout
1568proto._init = proto.layout;
1569
1570/**
1571 * logic before any new layout
1572 */
1573proto._resetLayout = function() {
1574  this.getSize();
1575};
1576
1577
1578proto.getSize = function() {
1579  this.size = getSize( this.element );
1580};
1581
1582/**
1583 * get measurement from option, for columnWidth, rowHeight, gutter
1584 * if option is String -> get element from selector string, & get size of element
1585 * if option is Element -> get size of element
1586 * else use option as a number
1587 *
1588 * @param {String} measurement
1589 * @param {String} size - width or height
1590 * @private
1591 */
1592proto._getMeasurement = function( measurement, size ) {
1593  var option = this.options[ measurement ];
1594  var elem;
1595  if ( !option ) {
1596    // default to 0
1597    this[ measurement ] = 0;
1598  } else {
1599    // use option as an element
1600    if ( typeof option == 'string' ) {
1601      elem = this.element.querySelector( option );
1602    } else if ( option instanceof HTMLElement ) {
1603      elem = option;
1604    }
1605    // use size of element, if element
1606    this[ measurement ] = elem ? getSize( elem )[ size ] : option;
1607  }
1608};
1609
1610/**
1611 * layout a collection of item elements
1612 * @api public
1613 */
1614proto.layoutItems = function( items, isInstant ) {
1615  items = this._getItemsForLayout( items );
1616
1617  this._layoutItems( items, isInstant );
1618
1619  this._postLayout();
1620};
1621
1622/**
1623 * get the items to be laid out
1624 * you may want to skip over some items
1625 * @param {Array} items
1626 * @returns {Array} items
1627 */
1628proto._getItemsForLayout = function( items ) {
1629  return items.filter( function( item ) {
1630    return !item.isIgnored;
1631  });
1632};
1633
1634/**
1635 * layout items
1636 * @param {Array} items
1637 * @param {Boolean} isInstant
1638 */
1639proto._layoutItems = function( items, isInstant ) {
1640  this._emitCompleteOnItems( 'layout', items );
1641
1642  if ( !items || !items.length ) {
1643    // no items, emit event with empty array
1644    return;
1645  }
1646
1647  var queue = [];
1648
1649  items.forEach( function( item ) {
1650    // get x/y object from method
1651    var position = this._getItemLayoutPosition( item );
1652    // enqueue
1653    position.item = item;
1654    position.isInstant = isInstant || item.isLayoutInstant;
1655    queue.push( position );
1656  }, this );
1657
1658  this._processLayoutQueue( queue );
1659};
1660
1661/**
1662 * get item layout position
1663 * @param {Outlayer.Item} item
1664 * @returns {Object} x and y position
1665 */
1666proto._getItemLayoutPosition = function( /* item */ ) {
1667  return {
1668    x: 0,
1669    y: 0
1670  };
1671};
1672
1673/**
1674 * iterate over array and position each item
1675 * Reason being - separating this logic prevents 'layout invalidation'
1676 * thx @paul_irish
1677 * @param {Array} queue
1678 */
1679proto._processLayoutQueue = function( queue ) {
1680  this.updateStagger();
1681  queue.forEach( function( obj, i ) {
1682    this._positionItem( obj.item, obj.x, obj.y, obj.isInstant, i );
1683  }, this );
1684};
1685
1686// set stagger from option in milliseconds number
1687proto.updateStagger = function() {
1688  var stagger = this.options.stagger;
1689  if ( stagger === null || stagger === undefined ) {
1690    this.stagger = 0;
1691    return;
1692  }
1693  this.stagger = getMilliseconds( stagger );
1694  return this.stagger;
1695};
1696
1697/**
1698 * Sets position of item in DOM
1699 * @param {Outlayer.Item} item
1700 * @param {Number} x - horizontal position
1701 * @param {Number} y - vertical position
1702 * @param {Boolean} isInstant - disables transitions
1703 */
1704proto._positionItem = function( item, x, y, isInstant, i ) {
1705  if ( isInstant ) {
1706    // if not transition, just set CSS
1707    item.goTo( x, y );
1708  } else {
1709    item.stagger( i * this.stagger );
1710    item.moveTo( x, y );
1711  }
1712};
1713
1714/**
1715 * Any logic you want to do after each layout,
1716 * i.e. size the container
1717 */
1718proto._postLayout = function() {
1719  this.resizeContainer();
1720};
1721
1722proto.resizeContainer = function() {
1723  var isResizingContainer = this._getOption('resizeContainer');
1724  if ( !isResizingContainer ) {
1725    return;
1726  }
1727  var size = this._getContainerSize();
1728  if ( size ) {
1729    this._setContainerMeasure( size.width, true );
1730    this._setContainerMeasure( size.height, false );
1731  }
1732};
1733
1734/**
1735 * Sets width or height of container if returned
1736 * @returns {Object} size
1737 *   @param {Number} width
1738 *   @param {Number} height
1739 */
1740proto._getContainerSize = noop;
1741
1742/**
1743 * @param {Number} measure - size of width or height
1744 * @param {Boolean} isWidth
1745 */
1746proto._setContainerMeasure = function( measure, isWidth ) {
1747  if ( measure === undefined ) {
1748    return;
1749  }
1750
1751  var elemSize = this.size;
1752  // add padding and border width if border box
1753  if ( elemSize.isBorderBox ) {
1754    measure += isWidth ? elemSize.paddingLeft + elemSize.paddingRight +
1755      elemSize.borderLeftWidth + elemSize.borderRightWidth :
1756      elemSize.paddingBottom + elemSize.paddingTop +
1757      elemSize.borderTopWidth + elemSize.borderBottomWidth;
1758  }
1759
1760  measure = Math.max( measure, 0 );
1761  this.element.style[ isWidth ? 'width' : 'height' ] = measure + 'px';
1762};
1763
1764/**
1765 * emit eventComplete on a collection of items events
1766 * @param {String} eventName
1767 * @param {Array} items - Outlayer.Items
1768 */
1769proto._emitCompleteOnItems = function( eventName, items ) {
1770  var _this = this;
1771  function onComplete() {
1772    _this.dispatchEvent( eventName + 'Complete', null, [ items ] );
1773  }
1774
1775  var count = items.length;
1776  if ( !items || !count ) {
1777    onComplete();
1778    return;
1779  }
1780
1781  var doneCount = 0;
1782  function tick() {
1783    doneCount++;
1784    if ( doneCount == count ) {
1785      onComplete();
1786    }
1787  }
1788
1789  // bind callback
1790  items.forEach( function( item ) {
1791    item.once( eventName, tick );
1792  });
1793};
1794
1795/**
1796 * emits events via EvEmitter and jQuery events
1797 * @param {String} type - name of event
1798 * @param {Event} event - original event
1799 * @param {Array} args - extra arguments
1800 */
1801proto.dispatchEvent = function( type, event, args ) {
1802  // add original event to arguments
1803  var emitArgs = event ? [ event ].concat( args ) : args;
1804  this.emitEvent( type, emitArgs );
1805
1806  if ( jQuery ) {
1807    // set this.$element
1808    this.$element = this.$element || jQuery( this.element );
1809    if ( event ) {
1810      // create jQuery event
1811      var $event = jQuery.Event( event );
1812      $event.type = type;
1813      this.$element.trigger( $event, args );
1814    } else {
1815      // just trigger with type if no event available
1816      this.$element.trigger( type, args );
1817    }
1818  }
1819};
1820
1821// -------------------------- ignore & stamps -------------------------- //
1822
1823
1824/**
1825 * keep item in collection, but do not lay it out
1826 * ignored items do not get skipped in layout
1827 * @param {Element} elem
1828 */
1829proto.ignore = function( elem ) {
1830  var item = this.getItem( elem );
1831  if ( item ) {
1832    item.isIgnored = true;
1833  }
1834};
1835
1836/**
1837 * return item to layout collection
1838 * @param {Element} elem
1839 */
1840proto.unignore = function( elem ) {
1841  var item = this.getItem( elem );
1842  if ( item ) {
1843    delete item.isIgnored;
1844  }
1845};
1846
1847/**
1848 * adds elements to stamps
1849 * @param {NodeList, Array, Element, or String} elems
1850 */
1851proto.stamp = function( elems ) {
1852  elems = this._find( elems );
1853  if ( !elems ) {
1854    return;
1855  }
1856
1857  this.stamps = this.stamps.concat( elems );
1858  // ignore
1859  elems.forEach( this.ignore, this );
1860};
1861
1862/**
1863 * removes elements to stamps
1864 * @param {NodeList, Array, or Element} elems
1865 */
1866proto.unstamp = function( elems ) {
1867  elems = this._find( elems );
1868  if ( !elems ){
1869    return;
1870  }
1871
1872  elems.forEach( function( elem ) {
1873    // filter out removed stamp elements
1874    utils.removeFrom( this.stamps, elem );
1875    this.unignore( elem );
1876  }, this );
1877};
1878
1879/**
1880 * finds child elements
1881 * @param {NodeList, Array, Element, or String} elems
1882 * @returns {Array} elems
1883 */
1884proto._find = function( elems ) {
1885  if ( !elems ) {
1886    return;
1887  }
1888  // if string, use argument as selector string
1889  if ( typeof elems == 'string' ) {
1890    elems = this.element.querySelectorAll( elems );
1891  }
1892  elems = utils.makeArray( elems );
1893  return elems;
1894};
1895
1896proto._manageStamps = function() {
1897  if ( !this.stamps || !this.stamps.length ) {
1898    return;
1899  }
1900
1901  this._getBoundingRect();
1902
1903  this.stamps.forEach( this._manageStamp, this );
1904};
1905
1906// update boundingLeft / Top
1907proto._getBoundingRect = function() {
1908  // get bounding rect for container element
1909  var boundingRect = this.element.getBoundingClientRect();
1910  var size = this.size;
1911  this._boundingRect = {
1912    left: boundingRect.left + size.paddingLeft + size.borderLeftWidth,
1913    top: boundingRect.top + size.paddingTop + size.borderTopWidth,
1914    right: boundingRect.right - ( size.paddingRight + size.borderRightWidth ),
1915    bottom: boundingRect.bottom - ( size.paddingBottom + size.borderBottomWidth )
1916  };
1917};
1918
1919/**
1920 * @param {Element} stamp
1921**/
1922proto._manageStamp = noop;
1923
1924/**
1925 * get x/y position of element relative to container element
1926 * @param {Element} elem
1927 * @returns {Object} offset - has left, top, right, bottom
1928 */
1929proto._getElementOffset = function( elem ) {
1930  var boundingRect = elem.getBoundingClientRect();
1931  var thisRect = this._boundingRect;
1932  var size = getSize( elem );
1933  var offset = {
1934    left: boundingRect.left - thisRect.left - size.marginLeft,
1935    top: boundingRect.top - thisRect.top - size.marginTop,
1936    right: thisRect.right - boundingRect.right - size.marginRight,
1937    bottom: thisRect.bottom - boundingRect.bottom - size.marginBottom
1938  };
1939  return offset;
1940};
1941
1942// -------------------------- resize -------------------------- //
1943
1944// enable event handlers for listeners
1945// i.e. resize -> onresize
1946proto.handleEvent = utils.handleEvent;
1947
1948/**
1949 * Bind layout to window resizing
1950 */
1951proto.bindResize = function() {
1952  window.addEventListener( 'resize', this );
1953  this.isResizeBound = true;
1954};
1955
1956/**
1957 * Unbind layout to window resizing
1958 */
1959proto.unbindResize = function() {
1960  window.removeEventListener( 'resize', this );
1961  this.isResizeBound = false;
1962};
1963
1964proto.onresize = function() {
1965  this.resize();
1966};
1967
1968utils.debounceMethod( Outlayer, 'onresize', 100 );
1969
1970proto.resize = function() {
1971  // don't trigger if size did not change
1972  // or if resize was unbound. See #9
1973  if ( !this.isResizeBound || !this.needsResizeLayout() ) {
1974    return;
1975  }
1976
1977  this.layout();
1978};
1979
1980/**
1981 * check if layout is needed post layout
1982 * @returns Boolean
1983 */
1984proto.needsResizeLayout = function() {
1985  var size = getSize( this.element );
1986  // check that this.size and size are there
1987  // IE8 triggers resize on body size change, so they might not be
1988  var hasSizes = this.size && size;
1989  return hasSizes && size.innerWidth !== this.size.innerWidth;
1990};
1991
1992// -------------------------- methods -------------------------- //
1993
1994/**
1995 * add items to Outlayer instance
1996 * @param {Array or NodeList or Element} elems
1997 * @returns {Array} items - Outlayer.Items
1998**/
1999proto.addItems = function( elems ) {
2000  var items = this._itemize( elems );
2001  // add items to collection
2002  if ( items.length ) {
2003    this.items = this.items.concat( items );
2004  }
2005  return items;
2006};
2007
2008/**
2009 * Layout newly-appended item elements
2010 * @param {Array or NodeList or Element} elems
2011 */
2012proto.appended = function( elems ) {
2013  var items = this.addItems( elems );
2014  if ( !items.length ) {
2015    return;
2016  }
2017  // layout and reveal just the new items
2018  this.layoutItems( items, true );
2019  this.reveal( items );
2020};
2021
2022/**
2023 * Layout prepended elements
2024 * @param {Array or NodeList or Element} elems
2025 */
2026proto.prepended = function( elems ) {
2027  var items = this._itemize( elems );
2028  if ( !items.length ) {
2029    return;
2030  }
2031  // add items to beginning of collection
2032  var previousItems = this.items.slice(0);
2033  this.items = items.concat( previousItems );
2034  // start new layout
2035  this._resetLayout();
2036  this._manageStamps();
2037  // layout new stuff without transition
2038  this.layoutItems( items, true );
2039  this.reveal( items );
2040  // layout previous items
2041  this.layoutItems( previousItems );
2042};
2043
2044/**
2045 * reveal a collection of items
2046 * @param {Array of Outlayer.Items} items
2047 */
2048proto.reveal = function( items ) {
2049  this._emitCompleteOnItems( 'reveal', items );
2050  if ( !items || !items.length ) {
2051    return;
2052  }
2053  var stagger = this.updateStagger();
2054  items.forEach( function( item, i ) {
2055    item.stagger( i * stagger );
2056    item.reveal();
2057  });
2058};
2059
2060/**
2061 * hide a collection of items
2062 * @param {Array of Outlayer.Items} items
2063 */
2064proto.hide = function( items ) {
2065  this._emitCompleteOnItems( 'hide', items );
2066  if ( !items || !items.length ) {
2067    return;
2068  }
2069  var stagger = this.updateStagger();
2070  items.forEach( function( item, i ) {
2071    item.stagger( i * stagger );
2072    item.hide();
2073  });
2074};
2075
2076/**
2077 * reveal item elements
2078 * @param {Array}, {Element}, {NodeList} items
2079 */
2080proto.revealItemElements = function( elems ) {
2081  var items = this.getItems( elems );
2082  this.reveal( items );
2083};
2084
2085/**
2086 * hide item elements
2087 * @param {Array}, {Element}, {NodeList} items
2088 */
2089proto.hideItemElements = function( elems ) {
2090  var items = this.getItems( elems );
2091  this.hide( items );
2092};
2093
2094/**
2095 * get Outlayer.Item, given an Element
2096 * @param {Element} elem
2097 * @param {Function} callback
2098 * @returns {Outlayer.Item} item
2099 */
2100proto.getItem = function( elem ) {
2101  // loop through items to get the one that matches
2102  for ( var i=0; i < this.items.length; i++ ) {
2103    var item = this.items[i];
2104    if ( item.element == elem ) {
2105      // return item
2106      return item;
2107    }
2108  }
2109};
2110
2111/**
2112 * get collection of Outlayer.Items, given Elements
2113 * @param {Array} elems
2114 * @returns {Array} items - Outlayer.Items
2115 */
2116proto.getItems = function( elems ) {
2117  elems = utils.makeArray( elems );
2118  var items = [];
2119  elems.forEach( function( elem ) {
2120    var item = this.getItem( elem );
2121    if ( item ) {
2122      items.push( item );
2123    }
2124  }, this );
2125
2126  return items;
2127};
2128
2129/**
2130 * remove element(s) from instance and DOM
2131 * @param {Array or NodeList or Element} elems
2132 */
2133proto.remove = function( elems ) {
2134  var removeItems = this.getItems( elems );
2135
2136  this._emitCompleteOnItems( 'remove', removeItems );
2137
2138  // bail if no items to remove
2139  if ( !removeItems || !removeItems.length ) {
2140    return;
2141  }
2142

2143  removeItems.forEach( function( item ) {
2144    item.remove();
2145    // remove item from collection
2146    utils.removeFrom( this.items, item );
2147  }, this );
2148};
2149
2150// ----- destroy ----- //
2151
2152// remove and disable Outlayer instance
2153proto.destroy = function() {
2154  // clean up dynamic styles
2155  var style = this.element.style;
2156  style.height = '';
2157  style.position = '';
2158  style.width = '';
2159  // destroy items
2160  this.items.forEach( function( item ) {
2161    item.destroy();
2162  });
2163
2164  this.unbindResize();
2165
2166  var id = this.element.outlayerGUID;
2167  delete instances[ id ]; // remove reference to instance by id
2168  delete this.element.outlayerGUID;
2169  // remove data for jQuery
2170  if ( jQuery ) {
2171    jQuery.removeData( this.element, this.constructor.namespace );
2172  }
2173
2174};
2175
2176// -------------------------- data -------------------------- //
2177
2178/**
2179 * get Outlayer instance from element
2180 * @param {Element} elem
2181 * @returns {Outlayer}
2182 */
2183Outlayer.data = function( elem ) {
2184  elem = utils.getQueryElement( elem );
2185  var id = elem && elem.outlayerGUID;
2186  return id && instances[ id ];
2187};
2188
2189
2190// -------------------------- create Outlayer class -------------------------- //
2191
2192/**
2193 * create a layout class
2194 * @param {String} namespace
2195 */
2196Outlayer.create = function( namespace, options ) {
2197  // sub-class Outlayer
2198  var Layout = subclass( Outlayer );
2199  // apply new options and compatOptions
2200  Layout.defaults = utils.extend( {}, Outlayer.defaults );
2201  utils.extend( Layout.defaults, options );
2202  Layout.compatOptions = utils.extend( {}, Outlayer.compatOptions  );
2203
2204  Layout.namespace = namespace;
2205
2206  Layout.data = Outlayer.data;
2207
2208  // sub-class Item
2209  Layout.Item = subclass( Item );
2210
2211  // -------------------------- declarative -------------------------- //
2212
2213  utils.htmlInit( Layout, namespace );
2214
2215  // -------------------------- jQuery bridge -------------------------- //
2216
2217  // make into jQuery plugin
2218  if ( jQuery && jQuery.bridget ) {
2219    jQuery.bridget( namespace, Layout );
2220  }
2221
2222  return Layout;
2223};
2224
2225function subclass( Parent ) {
2226  function SubClass() {
2227    Parent.apply( this, arguments );
2228  }
2229
2230  SubClass.prototype = Object.create( Parent.prototype );
2231  SubClass.prototype.constructor = SubClass;
2232
2233  return SubClass;
2234}
2235
2236// ----- helpers ----- //
2237
2238// how many milliseconds are in each unit
2239var msUnits = {
2240  ms: 1,
2241  s: 1000
2242};
2243
2244// munge time-like parameter into millisecond number
2245// '0.4s' -> 40
2246function getMilliseconds( time ) {
2247  if ( typeof time == 'number' ) {
2248    return time;
2249  }
2250  var matches = time.match( /(^\d*\.?\d*)(\w*)/ );
2251  var num = matches && matches[1];
2252  var unit = matches && matches[2];
2253  if ( !num.length ) {
2254    return 0;
2255  }
2256  num = parseFloat( num );
2257  var mult = msUnits[ unit ] || 1;
2258  return num * mult;
2259}
2260
2261// ----- fin ----- //
2262
2263// back in global
2264Outlayer.Item = Item;
2265
2266return Outlayer;
2267
2268}));
2269
2270/**
2271 * Isotope Item
2272**/
2273
2274( function( window, factory ) {
2275  // universal module definition
2276  /* jshint strict: false */ /*globals define, module, require */
2277  if ( typeof define == 'function' && define.amd ) {
2278    // AMD
2279    define( 'isotope-layout/js/item',[
2280        'outlayer/outlayer'
2281      ],
2282      factory );
2283  } else if ( typeof module == 'object' && module.exports ) {
2284    // CommonJS
2285    module.exports = factory(
2286      require('outlayer')
2287    );
2288  } else {
2289    // browser global
2290    window.Isotope = window.Isotope || {};
2291    window.Isotope.Item = factory(
2292      window.Outlayer
2293    );
2294  }
2295
2296}( window, function factory( Outlayer ) {
2297'use strict';
2298
2299// -------------------------- Item -------------------------- //
2300
2301// sub-class Outlayer Item
2302function Item() {
2303  Outlayer.Item.apply( this, arguments );
2304}
2305
2306var proto = Item.prototype = Object.create( Outlayer.Item.prototype );
2307
2308var _create = proto._create;
2309proto._create = function() {
2310  // assign id, used for original-order sorting
2311  this.id = this.layout.itemGUID++;
2312  _create.call( this );
2313  this.sortData = {};
2314};
2315
2316proto.updateSortData = function() {
2317  if ( this.isIgnored ) {
2318    return;
2319  }
2320  // default sorters
2321  this.sortData.id = this.id;
2322  // for backward compatibility
2323  this.sortData['original-order'] = this.id;
2324  this.sortData.random = Math.random();
2325  // go thru getSortData obj and apply the sorters
2326  var getSortData = this.layout.options.getSortData;
2327  var sorters = this.layout._sorters;
2328  for ( var key in getSortData ) {
2329    var sorter = sorters[ key ];
2330    this.sortData[ key ] = sorter( this.element, this );
2331  }
2332};
2333
2334var _destroy = proto.destroy;
2335proto.destroy = function() {
2336  // call super
2337  _destroy.apply( this, arguments );
2338  // reset display, #741
2339  this.css({
2340    display: ''
2341  });
2342};
2343
2344return Item;
2345
2346}));
2347
2348/**
2349 * Isotope LayoutMode
2350 */
2351
2352( function( window, factory ) {
2353  // universal module definition
2354  /* jshint strict: false */ /*globals define, module, require */
2355  if ( typeof define == 'function' && define.amd ) {
2356    // AMD
2357    define( 'isotope-layout/js/layout-mode',[
2358        'get-size/get-size',
2359        'outlayer/outlayer'
2360      ],
2361      factory );
2362  } else if ( typeof module == 'object' && module.exports ) {
2363    // CommonJS
2364    module.exports = factory(
2365      require('get-size'),
2366      require('outlayer')
2367    );
2368  } else {
2369    // browser global
2370    window.Isotope = window.Isotope || {};
2371    window.Isotope.LayoutMode = factory(
2372      window.getSize,
2373      window.Outlayer
2374    );
2375  }
2376
2377}( window, function factory( getSize, Outlayer ) {
2378  'use strict';
2379
2380  // layout mode class
2381  function LayoutMode( isotope ) {
2382    this.isotope = isotope;
2383    // link properties
2384    if ( isotope ) {
2385      this.options = isotope.options[ this.namespace ];
2386      this.element = isotope.element;
2387      this.items = isotope.filteredItems;
2388      this.size = isotope.size;
2389    }
2390  }
2391
2392  var proto = LayoutMode.prototype;
2393
2394  /**
2395   * some methods should just defer to default Outlayer method
2396   * and reference the Isotope instance as `this`
2397  **/
2398  var facadeMethods = [
2399    '_resetLayout',
2400    '_getItemLayoutPosition',
2401    '_manageStamp',
2402    '_getContainerSize',
2403    '_getElementOffset',
2404    'needsResizeLayout',
2405    '_getOption'
2406  ];
2407
2408  facadeMethods.forEach( function( methodName ) {
2409    proto[ methodName ] = function() {
2410      return Outlayer.prototype[ methodName ].apply( this.isotope, arguments );
2411    };
2412  });
2413
2414  // -----  ----- //
2415
2416  // for horizontal layout modes, check vertical size
2417  proto.needsVerticalResizeLayout = function() {
2418    // don't trigger if size did not change
2419    var size = getSize( this.isotope.element );
2420    // check that this.size and size are there
2421    // IE8 triggers resize on body size change, so they might not be
2422    var hasSizes = this.isotope.size && size;
2423    return hasSizes && size.innerHeight != this.isotope.size.innerHeight;
2424  };
2425
2426  // ----- measurements ----- //
2427
2428  proto._getMeasurement = function() {
2429    this.isotope._getMeasurement.apply( this, arguments );
2430  };
2431
2432  proto.getColumnWidth = function() {
2433    this.getSegmentSize( 'column', 'Width' );
2434  };
2435
2436  proto.getRowHeight = function() {
2437    this.getSegmentSize( 'row', 'Height' );
2438  };
2439
2440  /**
2441   * get columnWidth or rowHeight
2442   * segment: 'column' or 'row'
2443   * size 'Width' or 'Height'
2444  **/
2445  proto.getSegmentSize = function( segment, size ) {
2446    var segmentName = segment + size;
2447    var outerSize = 'outer' + size;
2448    // columnWidth / outerWidth // rowHeight / outerHeight
2449    this._getMeasurement( segmentName, outerSize );
2450    // got rowHeight or columnWidth, we can chill
2451    if ( this[ segmentName ] ) {
2452      return;
2453    }
2454    // fall back to item of first element
2455    var firstItemSize = this.getFirstItemSize();
2456    this[ segmentName ] = firstItemSize && firstItemSize[ outerSize ] ||
2457      // or size of container
2458      this.isotope.size[ 'inner' + size ];
2459  };
2460
2461  proto.getFirstItemSize = function() {
2462    var firstItem = this.isotope.filteredItems[0];
2463    return firstItem && firstItem.element && getSize( firstItem.element );
2464  };
2465
2466  // ----- methods that should reference isotope ----- //
2467
2468  proto.layout = function() {
2469    this.isotope.layout.apply( this.isotope, arguments );
2470  };
2471
2472  proto.getSize = function() {
2473    this.isotope.getSize();
2474    this.size = this.isotope.size;
2475  };
2476
2477  // -------------------------- create -------------------------- //
2478
2479  LayoutMode.modes = {};
2480
2481  LayoutMode.create = function( namespace, options ) {
2482
2483    function Mode() {
2484      LayoutMode.apply( this, arguments );
2485    }
2486
2487    Mode.prototype = Object.create( proto );
2488    Mode.prototype.constructor = Mode;
2489
2490    // default options
2491    if ( options ) {
2492      Mode.options = options;
2493    }
2494
2495    Mode.prototype.namespace = namespace;
2496    // register in Isotope
2497    LayoutMode.modes[ namespace ] = Mode;
2498
2499    return Mode;
2500  };
2501
2502  return LayoutMode;
2503
2504}));
2505
2506/*!
2507 * Masonry v4.2.1
2508 * Cascading grid layout library
2509 * https://masonry.desandro.com
2510 * MIT License
2511 * by David DeSandro
2512 */
2513
2514( function( window, factory ) {
2515  // universal module definition
2516  /* jshint strict: false */ /*globals define, module, require */
2517  if ( typeof define == 'function' && define.amd ) {
2518    // AMD
2519    define( 'masonry-layout/masonry',[
2520        'outlayer/outlayer',
2521        'get-size/get-size'
2522      ],
2523      factory );
2524  } else if ( typeof module == 'object' && module.exports ) {
2525    // CommonJS
2526    module.exports = factory(
2527      require('outlayer'),
2528      require('get-size')
2529    );
2530  } else {
2531    // browser global
2532    window.Masonry = factory(
2533      window.Outlayer,
2534      window.getSize
2535    );
2536  }
2537
2538}( window, function factory( Outlayer, getSize ) {
2539
2540
2541
2542// -------------------------- masonryDefinition -------------------------- //
2543
2544  // create an Outlayer layout class
2545  var Masonry = Outlayer.create('masonry');
2546  // isFitWidth -> fitWidth
2547  Masonry.compatOptions.fitWidth = 'isFitWidth';
2548
2549  var proto = Masonry.prototype;
2550
2551  proto._resetLayout = function() {
2552    this.getSize();
2553    this._getMeasurement( 'columnWidth', 'outerWidth' );
2554    this._getMeasurement( 'gutter', 'outerWidth' );
2555    this.measureColumns();
2556
2557    // reset column Y
2558    this.colYs = [];
2559    for ( var i=0; i < this.cols; i++ ) {
2560      this.colYs.push( 0 );
2561    }
2562
2563    this.maxY = 0;
2564    this.horizontalColIndex = 0;
2565  };
2566
2567  proto.measureColumns = function() {
2568    this.getContainerWidth();
2569    // if columnWidth is 0, default to outerWidth of first item
2570    if ( !this.columnWidth ) {
2571      var firstItem = this.items[0];
2572      var firstItemElem = firstItem && firstItem.element;
2573      // columnWidth fall back to item of first element
2574      this.columnWidth = firstItemElem && getSize( firstItemElem ).outerWidth ||
2575        // if first elem has no width, default to size of container
2576        this.containerWidth;
2577    }
2578
2579    var columnWidth = this.columnWidth += this.gutter;
2580
2581    // calculate columns
2582    var containerWidth = this.containerWidth + this.gutter;
2583    var cols = containerWidth / columnWidth;
2584    // fix rounding errors, typically with gutters
2585    var excess = columnWidth - containerWidth % columnWidth;
2586    // if overshoot is less than a pixel, round up, otherwise floor it
2587    var mathMethod = excess && excess < 1 ? 'round' : 'floor';
2588    cols = Math[ mathMethod ]( cols );
2589    this.cols = Math.max( cols, 1 );
2590  };
2591
2592  proto.getContainerWidth = function() {
2593    // container is parent if fit width
2594    var isFitWidth = this._getOption('fitWidth');
2595    var container = isFitWidth ? this.element.parentNode : this.element;
2596    // check that this.size and size are there
2597    // IE8 triggers resize on body size change, so they might not be
2598    var size = getSize( container );
2599    this.containerWidth = size && size.innerWidth;
2600  };
2601
2602  proto._getItemLayoutPosition = function( item ) {
2603    item.getSize();
2604    // how many columns does this brick span
2605    var remainder = item.size.outerWidth % this.columnWidth;
2606    var mathMethod = remainder && remainder < 1 ? 'round' : 'ceil';
2607    // round if off by 1 pixel, otherwise use ceil
2608    var colSpan = Math[ mathMethod ]( item.size.outerWidth / this.columnWidth );
2609    colSpan = Math.min( colSpan, this.cols );
2610    // use horizontal or top column position
2611    var colPosMethod = this.options.horizontalOrder ?
2612      '_getHorizontalColPosition' : '_getTopColPosition';
2613    var colPosition = this[ colPosMethod ]( colSpan, item );
2614    // position the brick
2615    var position = {
2616      x: this.columnWidth * colPosition.col,
2617      y: colPosition.y
2618    };
2619    // apply setHeight to necessary columns
2620    var setHeight = colPosition.y + item.size.outerHeight;
2621    var setMax = colSpan + colPosition.col;
2622    for ( var i = colPosition.col; i < setMax; i++ ) {
2623      this.colYs[i] = setHeight;
2624    }
2625
2626    return position;
2627  };
2628
2629  proto._getTopColPosition = function( colSpan ) {
2630    var colGroup = this._getTopColGroup( colSpan );
2631    // get the minimum Y value from the columns
2632    var minimumY = Math.min.apply( Math, colGroup );
2633
2634    return {
2635      col: colGroup.indexOf( minimumY ),
2636      y: minimumY,
2637    };
2638  };
2639
2640  /**
2641   * @param {Number} colSpan - number of columns the element spans
2642   * @returns {Array} colGroup
2643   */
2644  proto._getTopColGroup = function( colSpan ) {
2645    if ( colSpan < 2 ) {
2646      // if brick spans only one column, use all the column Ys
2647      return this.colYs;
2648    }
2649
2650    var colGroup = [];
2651    // how many different places could this brick fit horizontally
2652    var groupCount = this.cols + 1 - colSpan;
2653    // for each group potential horizontal position
2654    for ( var i = 0; i < groupCount; i++ ) {
2655      colGroup[i] = this._getColGroupY( i, colSpan );
2656    }
2657    return colGroup;
2658  };
2659
2660  proto._getColGroupY = function( col, colSpan ) {
2661    if ( colSpan < 2 ) {
2662      return this.colYs[ col ];
2663    }
2664    // make an array of colY values for that one group
2665    var groupColYs = this.colYs.slice( col, col + colSpan );
2666    // and get the max value of the array
2667    return Math.max.apply( Math, groupColYs );
2668  };
2669
2670  // get column position based on horizontal index. #873
2671  proto._getHorizontalColPosition = function( colSpan, item ) {
2672    var col = this.horizontalColIndex % this.cols;
2673    var isOver = colSpan > 1 && col + colSpan > this.cols;
2674    // shift to next row if item can't fit on current row
2675    col = isOver ? 0 : col;
2676    // don't let zero-size items take up space
2677    var hasSize = item.size.outerWidth && item.size.outerHeight;
2678    this.horizontalColIndex = hasSize ? col + colSpan : this.horizontalColIndex;
2679
2680    return {
2681      col: col,
2682      y: this._getColGroupY( col, colSpan ),
2683    };
2684  };
2685
2686  proto._manageStamp = function( stamp ) {
2687    var stampSize = getSize( stamp );
2688    var offset = this._getElementOffset( stamp );
2689    // get the columns that this stamp affects
2690    var isOriginLeft = this._getOption('originLeft');
2691    var firstX = isOriginLeft ? offset.left : offset.right;
2692    var lastX = firstX + stampSize.outerWidth;
2693    var firstCol = Math.floor( firstX / this.columnWidth );
2694    firstCol = Math.max( 0, firstCol );
2695    var lastCol = Math.floor( lastX / this.columnWidth );
2696    // lastCol should not go over if multiple of columnWidth #425
2697    lastCol -= lastX % this.columnWidth ? 0 : 1;
2698    lastCol = Math.min( this.cols - 1, lastCol );
2699    // set colYs to bottom of the stamp
2700
2701    var isOriginTop = this._getOption('originTop');
2702    var stampMaxY = ( isOriginTop ? offset.top : offset.bottom ) +
2703      stampSize.outerHeight;
2704    for ( var i = firstCol; i <= lastCol; i++ ) {
2705      this.colYs[i] = Math.max( stampMaxY, this.colYs[i] );
2706    }
2707  };
2708
2709  proto._getContainerSize = function() {
2710    this.maxY = Math.max.apply( Math, this.colYs );
2711    var size = {
2712      height: this.maxY
2713    };
2714
2715    if ( this._getOption('fitWidth') ) {
2716      size.width = this._getContainerFitWidth();
2717    }
2718
2719    return size;
2720  };
2721
2722  proto._getContainerFitWidth = function() {
2723    var unusedCols = 0;
2724    // count unused columns
2725    var i = this.cols;
2726    while ( --i ) {
2727      if ( this.colYs[i] !== 0 ) {
2728        break;
2729      }
2730      unusedCols++;
2731    }
2732    // fit container to columns that have been used
2733    return ( this.cols - unusedCols ) * this.columnWidth - this.gutter;
2734  };
2735
2736  proto.needsResizeLayout = function() {
2737    var previousWidth = this.containerWidth;
2738    this.getContainerWidth();
2739    return previousWidth != this.containerWidth;
2740  };
2741
2742  return Masonry;
2743
2744}));
2745
2746/*!
2747 * Masonry layout mode
2748 * sub-classes Masonry
2749 * https://masonry.desandro.com
2750 */
2751
2752( function( window, factory ) {
2753  // universal module definition
2754  /* jshint strict: false */ /*globals define, module, require */
2755  if ( typeof define == 'function' && define.amd ) {
2756    // AMD
2757    define( 'isotope-layout/js/layout-modes/masonry',[
2758        '../layout-mode',
2759        'masonry-layout/masonry'
2760      ],
2761      factory );
2762  } else if ( typeof module == 'object' && module.exports ) {
2763    // CommonJS
2764    module.exports = factory(
2765      require('../layout-mode'),
2766      require('masonry-layout')
2767    );
2768  } else {
2769    // browser global
2770    factory(
2771      window.Isotope.LayoutMode,
2772      window.Masonry
2773    );
2774  }
2775
2776}( window, function factory( LayoutMode, Masonry ) {
2777'use strict';
2778
2779// -------------------------- masonryDefinition -------------------------- //
2780
2781  // create an Outlayer layout class
2782  var MasonryMode = LayoutMode.create('masonry');
2783
2784  var proto = MasonryMode.prototype;
2785
2786  var keepModeMethods = {
2787    _getElementOffset: true,
2788    layout: true,
2789    _getMeasurement: true
2790  };
2791
2792  // inherit Masonry prototype
2793  for ( var method in Masonry.prototype ) {
2794    // do not inherit mode methods
2795    if ( !keepModeMethods[ method ] ) {
2796      proto[ method ] = Masonry.prototype[ method ];
2797    }
2798  }
2799
2800  var measureColumns = proto.measureColumns;
2801  proto.measureColumns = function() {
2802    // set items, used if measuring first item
2803    this.items = this.isotope.filteredItems;
2804    measureColumns.call( this );
2805  };
2806
2807  // point to mode options for fitWidth
2808  var _getOption = proto._getOption;
2809  proto._getOption = function( option ) {
2810    if ( option == 'fitWidth' ) {
2811      return this.options.isFitWidth !== undefined ?
2812        this.options.isFitWidth : this.options.fitWidth;
2813    }
2814    return _getOption.apply( this.isotope, arguments );
2815  };
2816
2817  return MasonryMode;
2818
2819}));
2820
2821/**
2822 * fitRows layout mode
2823 */
2824
2825( function( window, factory ) {
2826  // universal module definition
2827  /* jshint strict: false */ /*globals define, module, require */
2828  if ( typeof define == 'function' && define.amd ) {
2829    // AMD
2830    define( 'isotope-layout/js/layout-modes/fit-rows',[
2831        '../layout-mode'
2832      ],
2833      factory );
2834  } else if ( typeof exports == 'object' ) {
2835    // CommonJS
2836    module.exports = factory(
2837      require('../layout-mode')
2838    );
2839  } else {
2840    // browser global
2841    factory(
2842      window.Isotope.LayoutMode
2843    );
2844  }
2845
2846}( window, function factory( LayoutMode ) {
2847'use strict';
2848
2849var FitRows = LayoutMode.create('fitRows');
2850
2851var proto = FitRows.prototype;
2852
2853proto._resetLayout = function() {
2854  this.x = 0;
2855  this.y = 0;
2856  this.maxY = 0;
2857  this._getMeasurement( 'gutter', 'outerWidth' );
2858};
2859
2860proto._getItemLayoutPosition = function( item ) {
2861  item.getSize();
2862
2863  var itemWidth = item.size.outerWidth + this.gutter;
2864  // if this element cannot fit in the current row
2865  var containerWidth = this.isotope.size.innerWidth + this.gutter;
2866  if ( this.x !== 0 && itemWidth + this.x > containerWidth ) {
2867    this.x = 0;
2868    this.y = this.maxY;
2869  }
2870
2871  var position = {
2872    x: this.x,
2873    y: this.y
2874  };
2875
2876  this.maxY = Math.max( this.maxY, this.y + item.size.outerHeight );
2877  this.x += itemWidth;
2878
2879  return position;
2880};
2881
2882proto._getContainerSize = function() {
2883  return { height: this.maxY };
2884};
2885
2886return FitRows;
2887
2888}));
2889
2890/**
2891 * vertical layout mode
2892 */
2893
2894( function( window, factory ) {
2895  // universal module definition
2896  /* jshint strict: false */ /*globals define, module, require */
2897  if ( typeof define == 'function' && define.amd ) {
2898    // AMD
2899    define( 'isotope-layout/js/layout-modes/vertical',[
2900        '../layout-mode'
2901      ],
2902      factory );
2903  } else if ( typeof module == 'object' && module.exports ) {
2904    // CommonJS
2905    module.exports = factory(
2906      require('../layout-mode')
2907    );
2908  } else {
2909    // browser global
2910    factory(
2911      window.Isotope.LayoutMode
2912    );
2913  }
2914
2915}( window, function factory( LayoutMode ) {
2916'use strict';
2917
2918var Vertical = LayoutMode.create( 'vertical', {
2919  horizontalAlignment: 0
2920});
2921
2922var proto = Vertical.prototype;
2923
2924proto._resetLayout = function() {
2925  this.y = 0;
2926};
2927
2928proto._getItemLayoutPosition = function( item ) {
2929  item.getSize();
2930  var x = ( this.isotope.size.innerWidth - item.size.outerWidth ) *
2931    this.options.horizontalAlignment;
2932  var y = this.y;
2933  this.y += item.size.outerHeight;
2934  return { x: x, y: y };
2935};
2936
2937proto._getContainerSize = function() {
2938  return { height: this.y };
2939};
2940
2941return Vertical;
2942
2943}));
2944
2945/*!
2946 * Isotope v3.0.6
2947 *
2948 * Licensed GPLv3 for open source use
2949 * or Isotope Commercial License for commercial use
2950 *
2951 * https://isotope.metafizzy.co
2952 * Copyright 2010-2018 Metafizzy
2953 */
2954
2955( function( window, factory ) {
2956  // universal module definition
2957  /* jshint strict: false */ /*globals define, module, require */
2958  if ( typeof define == 'function' && define.amd ) {
2959    // AMD
2960    define( [
2961        'outlayer/outlayer',
2962        'get-size/get-size',
2963        'desandro-matches-selector/matches-selector',
2964        'fizzy-ui-utils/utils',
2965        'isotope-layout/js/item',
2966        'isotope-layout/js/layout-mode',
2967        // include default layout modes
2968        'isotope-layout/js/layout-modes/masonry',
2969        'isotope-layout/js/layout-modes/fit-rows',
2970        'isotope-layout/js/layout-modes/vertical'
2971      ],
2972      function( Outlayer, getSize, matchesSelector, utils, Item, LayoutMode ) {
2973        return factory( window, Outlayer, getSize, matchesSelector, utils, Item, LayoutMode );
2974      });
2975  } else if ( typeof module == 'object' && module.exports ) {
2976    // CommonJS
2977    module.exports = factory(
2978      window,
2979      require('outlayer'),
2980      require('get-size'),
2981      require('desandro-matches-selector'),
2982      require('fizzy-ui-utils'),
2983      require('isotope-layout/js/item'),
2984      require('isotope-layout/js/layout-mode'),
2985      // include default layout modes
2986      require('isotope-layout/js/layout-modes/masonry'),
2987      require('isotope-layout/js/layout-modes/fit-rows'),
2988      require('isotope-layout/js/layout-modes/vertical')
2989    );
2990  } else {
2991    // browser global
2992    window.Isotope = factory(
2993      window,
2994      window.Outlayer,
2995      window.getSize,
2996      window.matchesSelector,
2997      window.fizzyUIUtils,
2998      window.Isotope.Item,
2999      window.Isotope.LayoutMode
3000    );
3001  }
3002
3003}( window, function factory( window, Outlayer, getSize, matchesSelector, utils,
3004  Item, LayoutMode ) {
3005
3006
3007
3008// -------------------------- vars -------------------------- //
3009
3010var jQuery = window.jQuery;
3011
3012// -------------------------- helpers -------------------------- //
3013
3014var trim = String.prototype.trim ?
3015  function( str ) {
3016    return str.trim();
3017  } :
3018  function( str ) {
3019    return str.replace( /^\s+|\s+$/g, '' );
3020  };
3021
3022// -------------------------- isotopeDefinition -------------------------- //
3023
3024  // create an Outlayer layout class
3025  var Isotope = Outlayer.create( 'isotope', {
3026    layoutMode: 'masonry',
3027    isJQueryFiltering: true,
3028    sortAscending: true
3029  });
3030
3031  Isotope.Item = Item;
3032  Isotope.LayoutMode = LayoutMode;
3033
3034  var proto = Isotope.prototype;
3035
3036  proto._create = function() {
3037    this.itemGUID = 0;
3038    // functions that sort items
3039    this._sorters = {};
3040    this._getSorters();
3041    // call super
3042    Outlayer.prototype._create.call( this );
3043
3044    // create layout modes
3045    this.modes = {};
3046    // start filteredItems with all items
3047    this.filteredItems = this.items;
3048    // keep of track of sortBys
3049    this.sortHistory = [ 'original-order' ];
3050    // create from registered layout modes
3051    for ( var name in LayoutMode.modes ) {
3052      this._initLayoutMode( name );
3053    }
3054  };
3055
3056  proto.reloadItems = function() {
3057    // reset item ID counter
3058    this.itemGUID = 0;
3059    // call super
3060    Outlayer.prototype.reloadItems.call( this );
3061  };
3062
3063  proto._itemize = function() {
3064    var items = Outlayer.prototype._itemize.apply( this, arguments );
3065    // assign ID for original-order
3066    for ( var i=0; i < items.length; i++ ) {
3067      var item = items[i];
3068      item.id = this.itemGUID++;
3069    }
3070    this._updateItemsSortData( items );
3071    return items;
3072  };
3073
3074
3075  // -------------------------- layout -------------------------- //
3076
3077  proto._initLayoutMode = function( name ) {
3078    var Mode = LayoutMode.modes[ name ];
3079    // set mode options
3080    // HACK extend initial options, back-fill in default options
3081    var initialOpts = this.options[ name ] || {};
3082    this.options[ name ] = Mode.options ?
3083      utils.extend( Mode.options, initialOpts ) : initialOpts;
3084    // init layout mode instance
3085    this.modes[ name ] = new Mode( this );
3086  };
3087
3088
3089  proto.layout = function() {
3090    // if first time doing layout, do all magic
3091    if ( !this._isLayoutInited && this._getOption('initLayout') ) {
3092      this.arrange();
3093      return;
3094    }
3095    this._layout();
3096  };
3097
3098  // private method to be used in layout() & magic()
3099  proto._layout = function() {
3100    // don't animate first layout
3101    var isInstant = this._getIsInstant();
3102    // layout flow
3103    this._resetLayout();
3104    this._manageStamps();
3105    this.layoutItems( this.filteredItems, isInstant );
3106
3107    // flag for initalized
3108    this._isLayoutInited = true;
3109  };
3110
3111  // filter + sort + layout
3112  proto.arrange = function( opts ) {
3113    // set any options pass
3114    this.option( opts );
3115    this._getIsInstant();
3116    // filter, sort, and layout
3117
3118    // filter
3119    var filtered = this._filter( this.items );
3120    this.filteredItems = filtered.matches;
3121
3122    this._bindArrangeComplete();
3123
3124    if ( this._isInstant ) {
3125      this._noTransition( this._hideReveal, [ filtered ] );
3126    } else {
3127      this._hideReveal( filtered );
3128    }
3129
3130    this._sort();
3131    this._layout();
3132  };
3133  // alias to _init for main plugin method
3134  proto._init = proto.arrange;
3135
3136  proto._hideReveal = function( filtered ) {
3137    this.reveal( filtered.needReveal );
3138    this.hide( filtered.needHide );
3139  };
3140
3141  // HACK
3142  // Don't animate/transition first layout
3143  // Or don't animate/transition other layouts
3144  proto._getIsInstant = function() {
3145    var isLayoutInstant = this._getOption('layoutInstant');
3146    var isInstant = isLayoutInstant !== undefined ? isLayoutInstant :
3147      !this._isLayoutInited;
3148    this._isInstant = isInstant;
3149    return isInstant;
3150  };
3151
3152  // listen for layoutComplete, hideComplete and revealComplete
3153  // to trigger arrangeComplete
3154  proto._bindArrangeComplete = function() {
3155    // listen for 3 events to trigger arrangeComplete
3156    var isLayoutComplete, isHideComplete, isRevealComplete;
3157    var _this = this;
3158    function arrangeParallelCallback() {
3159      if ( isLayoutComplete && isHideComplete && isRevealComplete ) {
3160        _this.dispatchEvent( 'arrangeComplete', null, [ _this.filteredItems ] );
3161      }
3162    }
3163    this.once( 'layoutComplete', function() {
3164      isLayoutComplete = true;
3165      arrangeParallelCallback();
3166    });
3167    this.once( 'hideComplete', function() {
3168      isHideComplete = true;
3169      arrangeParallelCallback();
3170    });
3171    this.once( 'revealComplete', function() {
3172      isRevealComplete = true;
3173      arrangeParallelCallback();
3174    });
3175  };
3176
3177  // -------------------------- filter -------------------------- //
3178
3179  proto._filter = function( items ) {
3180    var filter = this.options.filter;
3181    filter = filter || '*';
3182    var matches = [];
3183    var hiddenMatched = [];
3184    var visibleUnmatched = [];
3185
3186    var test = this._getFilterTest( filter );
3187
3188    // test each item
3189    for ( var i=0; i < items.length; i++ ) {
3190      var item = items[i];
3191      if ( item.isIgnored ) {
3192        continue;
3193      }
3194      // add item to either matched or unmatched group
3195      var isMatched = test( item );
3196      // item.isFilterMatched = isMatched;
3197      // add to matches if its a match
3198      if ( isMatched ) {
3199        matches.push( item );
3200      }
3201      // add to additional group if item needs to be hidden or revealed
3202      if ( isMatched && item.isHidden ) {
3203        hiddenMatched.push( item );
3204      } else if ( !isMatched && !item.isHidden ) {
3205        visibleUnmatched.push( item );
3206      }
3207    }
3208
3209    // return collections of items to be manipulated
3210    return {
3211      matches: matches,
3212      needReveal: hiddenMatched,
3213      needHide: visibleUnmatched
3214    };
3215  };
3216
3217  // get a jQuery, function, or a matchesSelector test given the filter
3218  proto._getFilterTest = function( filter ) {
3219    if ( jQuery && this.options.isJQueryFiltering ) {
3220      // use jQuery
3221      return function( item ) {
3222        return jQuery( item.element ).is( filter );
3223      };
3224    }
3225    if ( typeof filter == 'function' ) {
3226      // use filter as function
3227      return function( item ) {
3228        return filter( item.element );
3229      };
3230    }
3231    // default, use filter as selector string
3232    return function( item ) {
3233      return matchesSelector( item.element, filter );
3234    };
3235  };
3236
3237  // -------------------------- sorting -------------------------- //
3238
3239  /**
3240   * @params {Array} elems
3241   * @public
3242   */
3243  proto.updateSortData = function( elems ) {
3244    // get items
3245    var items;
3246    if ( elems ) {
3247      elems = utils.makeArray( elems );
3248      items = this.getItems( elems );
3249    } else {
3250      // update all items if no elems provided
3251      items = this.items;
3252    }
3253
3254    this._getSorters();
3255    this._updateItemsSortData( items );
3256  };
3257
3258  proto._getSorters = function() {
3259    var getSortData = this.options.getSortData;
3260    for ( var key in getSortData ) {
3261      var sorter = getSortData[ key ];
3262      this._sorters[ key ] = mungeSorter( sorter );
3263    }
3264  };
3265
3266  /**
3267   * @params {Array} items - of Isotope.Items
3268   * @private
3269   */
3270  proto._updateItemsSortData = function( items ) {
3271    // do not update if no items
3272    var len = items && items.length;
3273
3274    for ( var i=0; len && i < len; i++ ) {
3275      var item = items[i];
3276      item.updateSortData();
3277    }
3278  };
3279
3280  // ----- munge sorter ----- //
3281
3282  // encapsulate this, as we just need mungeSorter
3283  // other functions in here are just for munging
3284  var mungeSorter = ( function() {
3285    // add a magic layer to sorters for convienent shorthands
3286    // `.foo-bar` will use the text of .foo-bar querySelector
3287    // `[foo-bar]` will use attribute
3288    // you can also add parser
3289    // `.foo-bar parseInt` will parse that as a number
3290    function mungeSorter( sorter ) {
3291      // if not a string, return function or whatever it is
3292      if ( typeof sorter != 'string' ) {
3293        return sorter;
3294      }
3295      // parse the sorter string
3296      var args = trim( sorter ).split(' ');
3297      var query = args[0];
3298      // check if query looks like [an-attribute]
3299      var attrMatch = query.match( /^\[(.+)\]$/ );
3300      var attr = attrMatch && attrMatch[1];
3301      var getValue = getValueGetter( attr, query );
3302      // use second argument as a parser
3303      var parser = Isotope.sortDataParsers[ args[1] ];
3304      // parse the value, if there was a parser
3305      sorter = parser ? function( elem ) {
3306        return elem && parser( getValue( elem ) );
3307      } :
3308      // otherwise just return value
3309      function( elem ) {
3310        return elem && getValue( elem );
3311      };
3312
3313      return sorter;
3314    }
3315
3316    // get an attribute getter, or get text of the querySelector
3317    function getValueGetter( attr, query ) {
3318      // if query looks like [foo-bar], get attribute
3319      if ( attr ) {
3320        return function getAttribute( elem ) {
3321          return elem.getAttribute( attr );
3322        };
3323      }
3324
3325      // otherwise, assume its a querySelector, and get its text
3326      return function getChildText( elem ) {
3327        var child = elem.querySelector( query );
3328        return child && child.textContent;
3329      };
3330    }
3331
3332    return mungeSorter;
3333  })();
3334
3335  // parsers used in getSortData shortcut strings
3336  Isotope.sortDataParsers = {
3337    'parseInt': function( val ) {
3338      return parseInt( val, 10 );
3339    },
3340    'parseFloat': function( val ) {
3341      return parseFloat( val );
3342    }
3343  };
3344
3345  // ----- sort method ----- //
3346
3347  // sort filteredItem order
3348  proto._sort = function() {
3349    if ( !this.options.sortBy ) {
3350      return;
3351    }
3352    // keep track of sortBy History
3353    var sortBys = utils.makeArray( this.options.sortBy );
3354    if ( !this._getIsSameSortBy( sortBys ) ) {
3355      // concat all sortBy and sortHistory, add to front, oldest goes in last
3356      this.sortHistory = sortBys.concat( this.sortHistory );
3357    }
3358    // sort magic
3359    var itemSorter = getItemSorter( this.sortHistory, this.options.sortAscending );
3360    this.filteredItems.sort( itemSorter );
3361  };
3362
3363  // check if sortBys is same as start of sortHistory
3364  proto._getIsSameSortBy = function( sortBys ) {
3365    for ( var i=0; i < sortBys.length; i++ ) {
3366      if ( sortBys[i] != this.sortHistory[i] ) {
3367        return false;
3368      }
3369    }
3370    return true;
3371  };
3372
3373  // returns a function used for sorting
3374  function getItemSorter( sortBys, sortAsc ) {
3375    return function sorter( itemA, itemB ) {
3376      // cycle through all sortKeys
3377      for ( var i = 0; i < sortBys.length; i++ ) {
3378        var sortBy = sortBys[i];
3379        var a = itemA.sortData[ sortBy ];
3380        var b = itemB.sortData[ sortBy ];
3381        if ( a > b || a < b ) {
3382          // if sortAsc is an object, use the value given the sortBy key
3383          var isAscending = sortAsc[ sortBy ] !== undefined ? sortAsc[ sortBy ] : sortAsc;
3384          var direction = isAscending ? 1 : -1;
3385          return ( a > b ? 1 : -1 ) * direction;
3386        }
3387      }
3388      return 0;
3389    };
3390  }
3391
3392  // -------------------------- methods -------------------------- //
3393
3394  // get layout mode
3395  proto._mode = function() {
3396    var layoutMode = this.options.layoutMode;
3397    var mode = this.modes[ layoutMode ];
3398    if ( !mode ) {
3399      // TODO console.error
3400      throw new Error( 'No layout mode: ' + layoutMode );
3401    }
3402    // HACK sync mode's options
3403    // any options set after init for layout mode need to be synced
3404    mode.options = this.options[ layoutMode ];
3405    return mode;
3406  };
3407
3408  proto._resetLayout = function() {
3409    // trigger original reset layout
3410    Outlayer.prototype._resetLayout.call( this );
3411    this._mode()._resetLayout();
3412  };
3413
3414  proto._getItemLayoutPosition = function( item  ) {
3415    return this._mode()._getItemLayoutPosition( item );
3416  };
3417
3418  proto._manageStamp = function( stamp ) {
3419    this._mode()._manageStamp( stamp );
3420  };
3421
3422  proto._getContainerSize = function() {
3423    return this._mode()._getContainerSize();
3424  };
3425
3426  proto.needsResizeLayout = function() {
3427    return this._mode().needsResizeLayout();
3428  };
3429
3430  // -------------------------- adding & removing -------------------------- //
3431
3432  // HEADS UP overwrites default Outlayer appended
3433  proto.appended = function( elems ) {
3434    var items = this.addItems( elems );
3435    if ( !items.length ) {
3436      return;
3437    }
3438    // filter, layout, reveal new items
3439    var filteredItems = this._filterRevealAdded( items );
3440    // add to filteredItems
3441    this.filteredItems = this.filteredItems.concat( filteredItems );
3442  };
3443
3444  // HEADS UP overwrites default Outlayer prepended
3445  proto.prepended = function( elems ) {
3446    var items = this._itemize( elems );
3447    if ( !items.length ) {
3448      return;
3449    }
3450    // start new layout
3451    this._resetLayout();
3452    this._manageStamps();
3453    // filter, layout, reveal new items
3454    var filteredItems = this._filterRevealAdded( items );
3455    // layout previous items
3456    this.layoutItems( this.filteredItems );
3457    // add to items and filteredItems
3458    this.filteredItems = filteredItems.concat( this.filteredItems );
3459    this.items = items.concat( this.items );
3460  };
3461
3462  proto._filterRevealAdded = function( items ) {
3463    var filtered = this._filter( items );
3464    this.hide( filtered.needHide );
3465    // reveal all new items
3466    this.reveal( filtered.matches );
3467    // layout new items, no transition
3468    this.layoutItems( filtered.matches, true );
3469    return filtered.matches;
3470  };
3471
3472  /**
3473   * Filter, sort, and layout newly-appended item elements
3474   * @param {Array or NodeList or Element} elems
3475   */
3476  proto.insert = function( elems ) {
3477    var items = this.addItems( elems );
3478    if ( !items.length ) {
3479      return;
3480    }
3481    // append item elements
3482    var i, item;
3483    var len = items.length;
3484    for ( i=0; i < len; i++ ) {
3485      item = items[i];
3486      this.element.appendChild( item.element );
3487    }
3488    // filter new stuff
3489    var filteredInsertItems = this._filter( items ).matches;
3490    // set flag
3491    for ( i=0; i < len; i++ ) {
3492      items[i].isLayoutInstant = true;
3493    }
3494    this.arrange();
3495    // reset flag
3496    for ( i=0; i < len; i++ ) {
3497      delete items[i].isLayoutInstant;
3498    }
3499    this.reveal( filteredInsertItems );
3500  };
3501
3502  var _remove = proto.remove;
3503  proto.remove = function( elems ) {
3504    elems = utils.makeArray( elems );
3505    var removeItems = this.getItems( elems );
3506    // do regular thing
3507    _remove.call( this, elems );
3508    // bail if no items to remove
3509    var len = removeItems && removeItems.length;
3510    // remove elems from filteredItems
3511    for ( var i=0; len && i < len; i++ ) {
3512      var item = removeItems[i];
3513      // remove item from collection
3514      utils.removeFrom( this.filteredItems, item );
3515    }
3516  };
3517
3518  proto.shuffle = function() {
3519    // update random sortData
3520    for ( var i=0; i < this.items.length; i++ ) {
3521      var item = this.items[i];
3522      item.sortData.random = Math.random();
3523    }
3524    this.options.sortBy = 'random';
3525    this._sort();
3526    this._layout();
3527  };
3528
3529  /**
3530   * trigger fn without transition
3531   * kind of hacky to have this in the first place
3532   * @param {Function} fn
3533   * @param {Array} args
3534   * @returns ret
3535   * @private
3536   */
3537  proto._noTransition = function( fn, args ) {
3538    // save transitionDuration before disabling
3539    var transitionDuration = this.options.transitionDuration;
3540    // disable transition
3541    this.options.transitionDuration = 0;
3542    // do it
3543    var returnValue = fn.apply( this, args );
3544    // re-enable transition for reveal
3545    this.options.transitionDuration = transitionDuration;
3546    return returnValue;
3547  };
3548
3549  // ----- helper methods ----- //
3550
3551  /**
3552   * getter method for getting filtered item elements
3553   * @returns {Array} elems - collection of item elements
3554   */
3555  proto.getFilteredItemElements = function() {
3556    return this.filteredItems.map( function( item ) {
3557      return item.element;
3558    });
3559  };
3560
3561  // -----  ----- //
3562
3563  return Isotope;
3564
3565}));