https://dalmen.com/wp-content/themes/uncode/library/js/plugins.js?ver=1151873507

298
299 */
300
301/**
302 * Bridget makes jQuery widgets
303 * v2.0.1
304 * MIT license
305 */
306
307/* jshint browser: true, strict: true, undef: true, unused: true */
308
309( function( window, factory ) {
310  // universal module definition
311  /*jshint strict: false */ /* globals define, module, require */
312  if ( typeof define == 'function' && define.amd ) {
313    // AMD
314    define( 'jquery-bridget/jquery-bridget',[ 'jquery' ], function( jQuery ) {
315      return factory( window, jQuery );
316    });
317  } else if ( typeof module == 'object' && module.exports ) {
318    // CommonJS
319    module.exports = factory(
320      window,
321      require('jquery')
322    );
323  } else {
324    // browser global
325    window.jQueryBridget = factory(
326      window,
327      window.jQuery
328    );
329  }
330
331}( window, function factory( window, jQuery ) {
332'use strict';
333
334// ----- utils ----- //
335
336var arraySlice = Array.prototype.slice;
337
338// helper function for logging errors
339// $.error breaks jQuery chaining
340var console = window.console;
341var logError = typeof console == 'undefined' ? function() {} :
342  function( message ) {
343    console.error( message );
344  };
345
346// ----- jQueryBridget ----- //
347
348function jQueryBridget( namespace, PluginClass, $ ) {
349  $ = $ || jQuery || window.jQuery;
350  if ( !$ ) {
351    return;
352  }
353
354  // add option method -> $().plugin('option', {...})
355  if ( !PluginClass.prototype.option ) {
356    // option setter
357    PluginClass.prototype.option = function( opts ) {
358      // bail out if not an object
359      if ( !$.isPlainObject( opts ) ){
360        return;
361      }
362      this.options = $.extend( true, this.options, opts );
363    };
364  }
365
366  // make jQuery plugin
367  $.fn[ namespace ] = function( arg0 /*, arg1 */ ) {
368    if ( typeof arg0 == 'string' ) {
369      // method call $().plugin( 'methodName', { options } )
370      // shift arguments by 1
371      var args = arraySlice.call( arguments, 1 );
372      return methodCall( this, arg0, args );
373    }
374    // just $().plugin({ options })
375    plainCall( this, arg0 );
376    return this;
377  };
378
379  // $().plugin('methodName')
380  function methodCall( $elems, methodName, args ) {
381    var returnValue;
382    var pluginMethodStr = '$().' + namespace + '("' + methodName + '")';
383
384    $elems.each( function( i, elem ) {
385      // get instance
386      var instance = $.data( elem, namespace );
387      if ( !instance ) {
388        logError( namespace + ' not initialized. Cannot call methods, i.e. ' +
389          pluginMethodStr );
390        return;
391      }
392
393      var method = instance[ methodName ];
394      if ( !method || methodName.charAt(0) == '_' ) {
395        logError( pluginMethodStr + ' is not a valid method' );
396        return;
397      }
398
399      // apply method, get return value
400      var value = method.apply( instance, args );
401      // set return value if value is returned, use only first value
402      returnValue = returnValue === undefined ? value : returnValue;
403    });
404
405    return returnValue !== undefined ? returnValue : $elems;
406  }
407
408  function plainCall( $elems, options ) {
409    $elems.each( function( i, elem ) {
410      var instance = $.data( elem, namespace );
411      if ( instance ) {
412        // set options & init
413        instance.option( options );
414        instance._init();
415      } else {
416        // initialize new instance
417        instance = new PluginClass( elem, options );
418        $.data( elem, namespace, instance );
419      }
420    });
421  }
422
423  updateJQuery( $ );
424
425}
426
427// ----- updateJQuery ----- //
428
429// set $.bridget for v1 backwards compatibility
430function updateJQuery( $ ) {
431  if ( !$ || ( $ && $.bridget ) ) {
432    return;
433  }
434  $.bridget = jQueryBridget;
435}
436
437updateJQuery( jQuery || window.jQuery );
438
439// -----  ----- //
440
441return jQueryBridget;
442
443}));
444
445/**
446 * EvEmitter v1.1.0
447 * Lil' event emitter
448 * MIT License
449 */
450
451/* jshint unused: true, undef: true, strict: true */
452
453( function( global, factory ) {
454  // universal module definition
455  /* jshint strict: false */ /* globals define, module, window */
456  if ( typeof define == 'function' && define.amd ) {
457    // AMD - RequireJS
458    define( 'ev-emitter/ev-emitter',factory );
459  } else if ( typeof module == 'object' && module.exports ) {
460    // CommonJS - Browserify, Webpack
461    module.exports = factory();
462  } else {
463    // Browser globals
464    global.EvEmitter = factory();
465  }
466
467}( typeof window != 'undefined' ? window : this, function() {
468
469
470
471function EvEmitter() {}
472
473var proto = EvEmitter.prototype;
474
475proto.on = function( eventName, listener ) {
476  if ( !eventName || !listener ) {
477    return;
478  }
479  // set events hash
480  var events = this._events = this._events || {};
481  // set listeners array
482  var listeners = events[ eventName ] = events[ eventName ] || [];
483  // only add once
484  if ( listeners.indexOf( listener ) == -1 ) {
485    listeners.push( listener );
486  }
487
488  return this;
489};
490
491proto.once = function( eventName, listener ) {
492  if ( !eventName || !listener ) {
493    return;
494  }
495  // add event
496  this.on( eventName, listener );
497  // set once flag
498  // set onceEvents hash
499  var onceEvents = this._onceEvents = this._onceEvents || {};
500  // set onceListeners object
501  var onceListeners = onceEvents[ eventName ] = onceEvents[ eventName ] || {};
502  // set flag
503  onceListeners[ listener ] = true;
504
505  return this;
506};
507
508proto.off = function( eventName, listener ) {
509  var listeners = this._events && this._events[ eventName ];
510  if ( !listeners || !listeners.length ) {
511    return;
512  }
513  var index = listeners.indexOf( listener );
514  if ( index != -1 ) {
515    listeners.splice( index, 1 );
516  }
517
518  return this;
519};
520
521proto.emitEvent = function( eventName, args ) {
522  var listeners = this._events && this._events[ eventName ];
523  if ( !listeners || !listeners.length ) {
524    return;
525  }
526  // copy over to avoid interference if .off() in listener
527  listeners = listeners.slice(0);
528  args = args || [];
529  // once stuff
530  var onceListeners = this._onceEvents && this._onceEvents[ eventName ];
531
532  for ( var i=0; i < listeners.length; i++ ) {
533    var listener = listeners[i]
534    var isOnce = onceListeners && onceListeners[ listener ];
535    if ( isOnce ) {
536      // remove listener
537      // remove before trigger to prevent recursion
538      this.off( eventName, listener );
539      // unset once flag
540      delete onceListeners[ listener ];
541    }
542    // trigger listener
543    listener.apply( this, args );
544  }
545
546  return this;
547};
548
549proto.allOff = function() {
550  delete this._events;
551  delete this._onceEvents;
552};
553
554return EvEmitter;
555
556}));
557
558/*!
559 * getSize v2.0.3
560 * measure size of elements
561 * MIT license
562 */
563
564/* jshint browser: true, strict: true, undef: true, unused: true */
565/* globals console: false */
566
567( function( window, factory ) {
568  /* jshint strict: false */ /* globals define, module */
569  if ( typeof define == 'function' && define.amd ) {
570    // AMD
571    define( 'get-size/get-size',factory );
572  } else if ( typeof module == 'object' && module.exports ) {
573    // CommonJS
574    module.exports = factory();
575  } else {
576    // browser global
577    window.getSize = factory();
578  }
579
580})( window, function factory() {
581'use strict';
582
583// -------------------------- helpers -------------------------- //
584
585// get a number from a string, not a percentage
586function getStyleSize( value ) {
587  var num = parseFloat( value );
588  // not a percent like '100%', and a number
589  var isValid = value.indexOf('%') == -1 && !isNaN( num );
590  return isValid && num;
591}
592
593function noop() {}
594
595var logError = typeof console == 'undefined' ? noop :
596  function( message ) {
597    console.error( message );
598  };
599
600// -------------------------- measurements -------------------------- //
601
602var measurements = [
603  'paddingLeft',
604  'paddingRight',
605  'paddingTop',
606  'paddingBottom',
607  'marginLeft',
608  'marginRight',
609  'marginTop',
610  'marginBottom',
611  'borderLeftWidth',
612  'borderRightWidth',
613  'borderTopWidth',
614  'borderBottomWidth'
615];
616
617var measurementsLength = measurements.length;
618
619function getZeroSize() {
620  var size = {
621    width: 0,
622    height: 0,
623    innerWidth: 0,
624    innerHeight: 0,
625    outerWidth: 0,
626    outerHeight: 0
627  };
628  for ( var i=0; i < measurementsLength; i++ ) {
629    var measurement = measurements[i];
630    size[ measurement ] = 0;
631  }
632  return size;
633}
634
635// -------------------------- getStyle -------------------------- //
636
637/**
638 * getStyle, get style of element, check for Firefox bug
639 * https://bugzilla.mozilla.org/show_bug.cgi?id=548397
640 */
641function getStyle( elem ) {
642  var style = getComputedStyle( elem );
643  if ( !style ) {
644    logError( 'Style returned ' + style +
645      '. Are you running this code in a hidden iframe on Firefox? ' +
646      'See https://bit.ly/getsizebug1' );
647  }
648  return style;
649}
650
651// -------------------------- setup -------------------------- //
652
653var isSetup = false;
654
655var isBoxSizeOuter;
656
657/**
658 * setup
659 * check isBoxSizerOuter
660 * do on first getSize() rather than on page load for Firefox bug
661 */
662function setup() {
663  // setup once
664  if ( isSetup ) {
665    return;
666  }
667  isSetup = true;
668
669  // -------------------------- box sizing -------------------------- //
670
671  /**
672   * Chrome & Safari measure the outer-width on style.width on border-box elems
673   * IE11 & Firefox<29 measures the inner-width
674   */
675  var div = document.createElement('div');
676  div.style.width = '200px';
677  div.style.padding = '1px 2px 3px 4px';
678  div.style.borderStyle = 'solid';
679  div.style.borderWidth = '1px 2px 3px 4px';
680  div.style.boxSizing = 'border-box';
681
682  var body = document.body || document.documentElement;
683  body.appendChild( div );
684  var style = getStyle( div );
685  // round value for browser zoom. desandro/masonry#928
686  isBoxSizeOuter = Math.round( getStyleSize( style.width ) ) == 200;
687  getSize.isBoxSizeOuter = isBoxSizeOuter;
688
689  body.removeChild( div );
690}
691
692// -------------------------- getSize -------------------------- //
693
694function getSize( elem ) {
695  setup();
696
697  // use querySeletor if elem is string
698  if ( typeof elem == 'string' ) {
699    elem = document.querySelector( elem );
700  }
701
702  // do not proceed on non-objects
703  if ( !elem || typeof elem != 'object' || !elem.nodeType ) {
704    return;
705  }
706
707  var style = getStyle( elem );
708
709  // if hidden, everything is 0
710  if ( style.display == 'none' ) {
711    return getZeroSize();
712  }
713
714  var size = {};
715  size.width = elem.offsetWidth;
716  size.height = elem.offsetHeight;
717
718  var isBorderBox = size.isBorderBox = style.boxSizing == 'border-box';
719
720  // get all measurements
721  for ( var i=0; i < measurementsLength; i++ ) {
722    var measurement = measurements[i];
723    var value = style[ measurement ];
724    var num = parseFloat( value );
725    // any 'auto', 'medium' value will be 0
726    size[ measurement ] = !isNaN( num ) ? num : 0;
727  }
728
729  var paddingWidth = size.paddingLeft + size.paddingRight;
730  var paddingHeight = size.paddingTop + size.paddingBottom;
731  var marginWidth = size.marginLeft + size.marginRight;
732  var marginHeight = size.marginTop + size.marginBottom;
733  var borderWidth = size.borderLeftWidth + size.borderRightWidth;
734  var borderHeight = size.borderTopWidth + size.borderBottomWidth;
735
736  var isBorderBoxSizeOuter = isBorderBox && isBoxSizeOuter;
737
738  // overwrite width and height if we can get it from style
739  var styleWidth = getStyleSize( style.width );
740  if ( styleWidth !== false ) {
741    size.width = styleWidth +
742      // add padding and border unless it's already including it
743      ( isBorderBoxSizeOuter ? 0 : paddingWidth + borderWidth );
744  }
745
746  var styleHeight = getStyleSize( style.height );
747  if ( styleHeight !== false ) {
748    size.height = styleHeight +
749      // add padding and border unless it's already including it
750      ( isBorderBoxSizeOuter ? 0 : paddingHeight + borderHeight );
751  }
752
753  size.innerWidth = size.width - ( paddingWidth + borderWidth );
754  size.innerHeight = size.height - ( paddingHeight + borderHeight );
755
756  size.outerWidth = size.width + marginWidth;
757  size.outerHeight = size.height + marginHeight;
758
759  return size;
760}
761
762return getSize;
763
764});
765
766/**
767 * matchesSelector v2.0.2
768 * matchesSelector( element, '.selector' )
769 * MIT license
770 */
771
772/*jshint browser: true, strict: true, undef: true, unused: true */
773
774( function( window, factory ) {
775  /*global define: false, module: false */
776  'use strict';
777  // universal module definition
778  if ( typeof define == 'function' && define.amd ) {
779    // AMD
780    define( 'desandro-matches-selector/matches-selector',factory );
781  } else if ( typeof module == 'object' && module.exports ) {
782    // CommonJS
783    module.exports = factory();
784  } else {
785    // browser global
786    window.matchesSelector = factory();
787  }
788
789}( window, function factory() {
790  'use strict';
791
792  var matchesMethod = ( function() {
793    var ElemProto = window.Element.prototype;
794    // check for the standard method name first
795    if ( ElemProto.matches ) {
796      return 'matches';
797    }
798    // check un-prefixed
799    if ( ElemProto.matchesSelector ) {
800      return 'matchesSelector';
801    }
802    // check vendor prefixes
803    var prefixes = [ 'webkit', 'moz', 'ms', 'o' ];
804
805    for ( var i=0; i < prefixes.length; i++ ) {
806      var prefix = prefixes[i];
807      var method = prefix + 'MatchesSelector';
808      if ( ElemProto[ method ] ) {
809        return method;
810      }
811    }
812  })();
813
814  return function matchesSelector( elem, selector ) {
815    return elem[ matchesMethod ]( selector );
816  };
817
818}));
819
820/**
821 * Fizzy UI utils v2.0.7
822 * MIT license
823 */
824
825/*jshint browser: true, undef: true, unused: true, strict: true */
826
827( function( window, factory ) {
828  // universal module definition
829  /*jshint strict: false */ /*globals define, module, require */
830
831  if ( typeof define == 'function' && define.amd ) {
832    // AMD
833    define( 'fizzy-ui-utils/utils',[
834      'desandro-matches-selector/matches-selector'
835    ], function( matchesSelector ) {
836      return factory( window, matchesSelector );
837    });
838  } else if ( typeof module == 'object' && module.exports ) {
839    // CommonJS
840    module.exports = factory(
841      window,
842      require('desandro-matches-selector')
843    );
844  } else {
845    // browser global
846    window.fizzyUIUtils = factory(
847      window,
848      window.matchesSelector
849    );
850  }
851
852}( window, function factory( window, matchesSelector ) {
853
854
855
856var utils = {};
857
858// ----- extend ----- //
859
860// extends objects
861utils.extend = function( a, b ) {
862  for ( var prop in b ) {
863    a[ prop ] = b[ prop ];
864  }
865  return a;
866};
867
868// ----- modulo ----- //
869
870utils.modulo = function( num, div ) {
871  return ( ( num % div ) + div ) % div;
872};
873
874// ----- makeArray ----- //
875
876var arraySlice = Array.prototype.slice;
877
878// turn element or nodeList into an array
879utils.makeArray = function( obj ) {
880  if ( Array.isArray( obj ) ) {
881    // use object if already an array
882    return obj;
883  }
884  // return empty array if undefined or null. #6
885  if ( obj === null || obj === undefined ) {
886    return [];
887  }
888
889  var isArrayLike = typeof obj == 'object' && typeof obj.length == 'number';
890  if ( isArrayLike ) {
891    // convert nodeList to array
892    return arraySlice.call( obj );
893  }
894
895  // array of single index
896  return [ obj ];
897};
898
899// ----- removeFrom ----- //
900
901utils.removeFrom = function( ary, obj ) {
902  var index = ary.indexOf( obj );
903  if ( index != -1 ) {
904    ary.splice( index, 1 );
905  }
906};
907
908// ----- getParent ----- //
909
910utils.getParent = function( elem, selector ) {
911  while ( elem.parentNode && elem != document.body ) {
912    elem = elem.parentNode;
913    if ( matchesSelector( elem, selector ) ) {
914      return elem;
915    }
916  }
917};
918
919// ----- getQueryElement ----- //
920
921// use element as selector string
922utils.getQueryElement = function( elem ) {
923  if ( typeof elem == 'string' ) {
924    return document.querySelector( elem );
925  }
926  return elem;
927};
928
929// ----- handleEvent ----- //
930
931// enable .ontype to trigger from .addEventListener( elem, 'type' )
932utils.handleEvent = function( event ) {
933  var method = 'on' + event.type;
934  if ( this[ method ] ) {
935    this[ method ]( event );
936  }
937};
938
939// ----- filterFindElements ----- //
940
941utils.filterFindElements = function( elems, selector ) {
942  // make array of elems
943  elems = utils.makeArray( elems );
944  var ffElems = [];
945
946  elems.forEach( function( elem ) {
947    // check that elem is an actual element
948    

951
952      return;
953    }
954    // add elem if no selector
955    if ( !selector ) {
956      ffElems.push( elem );
957      return;
958    }
959    // filter & find items if we have a selector
960    // filter
961    if ( matchesSelector( elem, selector ) ) {
962      ffElems.push( elem );
963    }
964    // find children
965    var childElems = elem.querySelectorAll( selector );
966    // concat childElems to filterFound array
967    for ( var i=0; i < childElems.length; i++ ) {
968      ffElems.push( childElems[i] );
969    }
970  });
971
972  return ffElems;
973};
974
975// ----- debounceMethod ----- //
976
977utils.debounceMethod = function( _class, methodName, threshold ) {
978  threshold = threshold || 100;
979  // original method
980  var method = _class.prototype[ methodName ];
981  var timeoutName = methodName + 'Timeout';
982
983  _class.prototype[ methodName ] = function() {
984    var timeout = this[ timeoutName ];
985    clearTimeout( timeout );
986
987    var args = arguments;
988    var _this = this;
989    this[ timeoutName ] = setTimeout( function() {
990      method.apply( _this, args );
991      delete _this[ timeoutName ];
992    }, threshold );
993  };
994};
995
996// ----- docReady ----- //
997
998utils.docReady = function( callback ) {
999  var readyState = document.readyState;
1000  if ( readyState == 'complete' || readyState == 'interactive' ) {
1001    // do async to allow for other scripts to run. metafizzy/flickity#441
1002    setTimeout( callback );
1003  } else {
1004    document.addEventListener( 'DOMContentLoaded', callback );
1005  }
1006};
1007
1008// ----- htmlInit ----- //
1009
1010// http://jamesroberts.name/blog/2010/02/22/string-functions-for-javascript-trim-to-camel-case-to-dashed-and-to-underscore/
1011utils.toDashed = function( str ) {
1012  return str.replace( /(.)([A-Z])/g, function( match, $1, $2 ) {
1013    return $1 + '-' + $2;
1014  }).toLowerCase();
1015};
1016
1017var console = window.console;
1018/**
1019 * allow user to initialize classes via [data-namespace] or .js-namespace class
1020 * htmlInit( Widget, 'widgetName' )
1021 * options are parsed from data-namespace-options
1022 */
1023utils.htmlInit = function( WidgetClass, namespace ) {
1024  utils.docReady( function() {
1025    var dashedNamespace = utils.toDashed( namespace );
1026    var dataAttr = 'data-' + dashedNamespace;
1027    var dataAttrElems = document.querySelectorAll( '[' + dataAttr + ']' );
1028    var jsDashElems = document.querySelectorAll( '.js-' + dashedNamespace );
1029    var elems = utils.makeArray( dataAttrElems )
1030      .concat( utils.makeArray( jsDashElems ) );
1031    var dataOptionsAttr = dataAttr + '-options';
1032    var jQuery = window.jQuery;
1033
1034    elems.forEach( function( elem ) {
1035      var attr = elem.getAttribute( dataAttr ) ||
1036        elem.getAttribute( dataOptionsAttr );
1037      var options;
1038      try {
1039        options = attr && JSON.parse( attr );
1040      } catch ( error ) {
1041        // log error, do not initialize
1042        if ( console ) {
1043          console.error( 'Error parsing ' + dataAttr + ' on ' + elem.className +
1044          ': ' + error );
1045        }
1046        return;
1047      }
1048      // initialize
1049      var instance = new WidgetClass( elem, options );
1050      // make available via $().data('namespace')
1051      if ( jQuery ) {
1052        jQuery.data( elem, namespace, instance );
1053      }
1054    });
1055
1056  });
1057};
1058
1059// -----  ----- //
1060
1061return utils;
1062
1063}));
1064
1065/**
1066 * Outlayer Item
1067 */
1068
1069( function( window, factory ) {
1070  // universal module definition
1071  /* jshint strict: false */ /* globals define, module, require */
1072  if ( typeof define == 'function' && define.amd ) {
1073    // AMD - RequireJS
1074    define( 'outlayer/item',[
1075        'ev-emitter/ev-emitter',
1076        'get-size/get-size'
1077      ],
1078      factory
1079    );
1080  } else if ( typeof module == 'object' && module.exports ) {
1081    // CommonJS - Browserify, Webpack
1082    module.exports = factory(
1083      require('ev-emitter'),
1084      require('get-size')
1085    );
1086  } else {
1087    // browser global
1088    window.Outlayer = {};
1089    window.Outlayer.Item = factory(
1090      window.EvEmitter,
1091      window.getSize
1092    );
1093  }
1094
1095}( window, function factory( EvEmitter, getSize ) {
1096'use strict';
1097
1098// ----- helpers ----- //
1099
1100function isEmptyObj( obj ) {
1101  for ( var prop in obj ) {
1102    return false;
1103  }
1104  prop = null;
1105  return true;
1106}
1107
1108// -------------------------- CSS3 support -------------------------- //
1109
1110
1111var docElemStyle = document.documentElement.style;
1112
1113var transitionProperty = typeof docElemStyle.transition == 'string' ?
1114  'transition' : 'WebkitTransition';
1115var transformProperty = typeof docElemStyle.transform == 'string' ?
1116  'transform' : 'WebkitTransform';
1117
1118var transitionEndEvent = {
1119  WebkitTransition: 'webkitTransitionEnd',
1120  transition: 'transitionend'
1121}[ transitionProperty ];
1122
1123// cache all vendor properties that could have vendor prefix
1124var vendorProperties = {
1125  transform: transformProperty,
1126  transition: transitionProperty,
1127  transitionDuration: transitionProperty + 'Duration',
1128  transitionProperty: transitionProperty + 'Property',
1129  transitionDelay: transitionProperty + 'Delay'
1130};
1131
1132// -------------------------- Item -------------------------- //
1133
1134function Item( element, layout ) {
1135  if ( !element ) {
1136    return;
1137  }
1138
1139  this.element = element;
1140  // parent layout class, i.e. Masonry, Isotope, or Packery
1141  this.layout = layout;
1142  this.position = {
1143    x: 0,
1144    y: 0
1145  };
1146
1147  this._create();
1148}
1149
1150// inherit EvEmitter
1151var proto = Item.prototype = Object.create( EvEmitter.prototype );
1152proto.constructor = Item;
1153
1154proto._create = function() {
1155  // transition objects
1156  this._transn = {
1157    ingProperties: {},
1158    clean: {},
1159    onEnd: {}
1160  };
1161
1162  this.css({
1163    position: 'absolute'
1164  });
1165};
1166
1167// trigger specified handler for event type
1168proto.handleEvent = function( event ) {
1169  var method = 'on' + event.type;
1170  if ( this[ method ] ) {
1171    this[ method ]( event );
1172  }
1173};
1174
1175proto.getSize = function() {
1176  this.size = getSize( this.element );
1177};
1178
1179/**
1180 * apply CSS styles to element
1181 * @param {Object} style
1182 */
1183proto.css = function( style ) {
1184  var elemStyle = this.element.style;
1185
1186  for ( var prop in style ) {
1187    // use vendor property if available
1188    var supportedProp = vendorProperties[ prop ] || prop;
1189    elemStyle[ supportedProp ] = style[ prop ];
1190  }
1191};
1192
1193 // measure position, and sets it
1194proto.getPosition = function() {
1195  var style = getComputedStyle( this.element );
1196  var isOriginLeft = this.layout._getOption('originLeft');
1197  var isOriginTop = this.layout._getOption('originTop');
1198  var xValue = style[ isOriginLeft ? 'left' : 'right' ];
1199  var yValue = style[ isOriginTop ? 'top' : 'bottom' ];
1200  var x = parseFloat( xValue );
1201  var y = parseFloat( yValue );
1202  // convert percent to pixels
1203  var layoutSize = this.layout.size;
1204  if ( xValue.indexOf('%') != -1 ) {
1205    x = ( x / 100 ) * layoutSize.width;
1206  }
1207  if ( yValue.indexOf('%') != -1 ) {
1208    y = ( y / 100 ) * layoutSize.height;
1209  }
1210  // clean up 'auto' or other non-integer values
1211  x = isNaN( x ) ? 0 : x;
1212  y = isNaN( y ) ? 0 : y;
1213  // remove padding from measurement
1214  x -= isOriginLeft ? layoutSize.paddingLeft : layoutSize.paddingRight;
1215  y -= isOriginTop ? layoutSize.paddingTop : layoutSize.paddingBottom;
1216
1217  this.position.x = x;
1218  this.position.y = y;
1219};
1220
1221// set settled position, apply padding
1222proto.layoutPosition = function() {
1223  var layoutSize = this.layout.size;
1224  var style = {};
1225  var isOriginLeft = this.layout._getOption('originLeft');
1226  var isOriginTop = this.layout._getOption('originTop');
1227
1228  // x
1229  var xPadding = isOriginLeft ? 'paddingLeft' : 'paddingRight';
1230  var xProperty = isOriginLeft ? 'left' : 'right';
1231  var xResetProperty = isOriginLeft ? 'right' : 'left';
1232
1233  var x = this.position.x + layoutSize[ xPadding ];
1234  // set in percentage or pixels
1235  style[ xProperty ] = this.getXValue( x );
1236  // reset other property
1237  style[ xResetProperty ] = '';
1238
1239  // y
1240  var yPadding = isOriginTop ? 'paddingTop' : 'paddingBottom';
1241  var yProperty = isOriginTop ? 'top' : 'bottom';
1242  var yResetProperty = isOriginTop ? 'bottom' : 'top';
1243
1244  var y = this.position.y + layoutSize[ yPadding ];
1245  // set in percentage or pixels
1246  style[ yProperty ] = this.getYValue( y );
1247  // reset other property
1248  style[ yResetProperty ] = '';
1249
1250  this.css( style );
1251  this.emitEvent( 'layout', [ this ] );
1252};
1253
1254proto.getXValue = function( x ) {
1255  var isHorizontal = this.layout._getOption('horizontal');
1256  return this.layout.options.percentPosition && !isHorizontal ?
1257    ( ( x / this.layout.size.width ) * 100 ) + '%' : x + 'px';
1258};
1259
1260proto.getYValue = function( y ) {
1261  var isHorizontal = this.layout._getOption('horizontal');
1262  return this.layout.options.percentPosition && isHorizontal ?
1263    ( ( y / this.layout.size.height ) * 100 ) + '%' : y + 'px';
1264};
1265
1266proto._transitionTo = function( x, y ) {
1267  this.getPosition();
1268  // get current x & y from top/left
1269  var curX = this.position.x;
1270  var curY = this.position.y;
1271
1272  var didNotMove = x == this.position.x && y == this.position.y;
1273
1274  // save end position
1275  this.setPosition( x, y );
1276
1277  // if did not move and not transitioning, just go to layout
1278  if ( didNotMove && !this.isTransitioning ) {
1279    this.layoutPosition();
1280    return;
1281  }
1282
1283  var transX = x - curX;
1284  var transY = y - curY;
1285  var transitionStyle = {};
1286  transitionStyle.transform = this.getTranslate( transX, transY );
1287
1288  this.transition({
1289    to: transitionStyle,
1290    onTransitionEnd: {
1291      transform: this.layoutPosition
1292    },
1293    isCleaning: true
1294  });
1295};
1296
1297proto.getTranslate = function( x, y ) {
1298  // flip cooridinates if origin on right or bottom
1299  var isOriginLeft = this.layout._getOption('originLeft');
1300  var isOriginTop = this.layout._getOption('originTop');
1301  x = isOriginLeft ? x : -x;
1302  y = isOriginTop ? y : -y;
1303  return 'translate3d(' + x + 'px, ' + y + 'px, 0)';
1304};
1305
1306// non transition + transform support
1307proto.goTo = function( x, y ) {
1308  this.setPosition( x, y );
1309  this.layoutPosition();
1310};
1311
1312proto.moveTo = proto._transitionTo;
1313
1314proto.setPosition = function( x, y ) {
1315  this.position.x = parseFloat( x );
1316  this.position.y = parseFloat( y );
1317};
1318
1319// ----- transition ----- //
1320
1321/**
1322 * @param {Object} style - CSS
1323 * @param {Function} onTransitionEnd
1324 */
1325
1326// non transition, just trigger callback
1327proto._nonTransition = function( args ) {
1328  this.css( args.to );
1329  if ( args.isCleaning ) {
1330    this._removeStyles( args.to );
1331  }
1332  for ( var prop in args.onTransitionEnd ) {
1333    args.onTransitionEnd[ prop ].call( this );
1334  }
1335};
1336
1337/**
1338 * proper transition
1339 * @param {Object} args - arguments
1340 *   @param {Object} to - style to transition to
1341 *   @param {Object} from - style to start transition from
1342 *   @param {Boolean} isCleaning - removes transition styles after transition
1343 *   @param {Function} onTransitionEnd - callback
1344 */
1345proto.transition = function( args ) {
1346  // redirect to nonTransition if no transition duration
1347  if ( !parseFloat( this.layout.options.transitionDuration ) ) {
1348    this._nonTransition( args );
1349    return;
1350  }
1351
1352  var _transition = this._transn;
1353  // keep track of onTransitionEnd callback by css property
1354  for ( var prop in args.onTransitionEnd ) {
1355    _transition.onEnd[ prop ] = args.onTransitionEnd[ prop ];
1356  }
1357  // keep track of properties that are transitioning
1358  for ( prop in args.to ) {
1359    _transition.ingProperties[ prop ] = true;
1360    // keep track of properties to clean up when transition is done
1361    if ( args.isCleaning ) {
1362      _transition.clean[ prop ] = true;
1363    }
1364  }
1365
1366  // set from styles
1367  if ( args.from ) {
1368    this.css( args.from );
1369    // force redraw. http://blog.alexmaccaw.com/css-transitions
1370    var h = this.element.offsetHeight;
1371    // hack for JSHint to hush about unused var
1372    h = null;
1373  }
1374  // enable transition
1375  this.enableTransition( args.to );
1376  // set styles that are transitioning
1377  this.css( args.to );
1378
1379  this.isTransitioning = true;
1380
1381};
1382
1383// dash before all cap letters, including first for
1384// WebkitTransform => -webkit-transform
1385function toDashedAll( str ) {
1386  return str.replace( /([A-Z])/g, function( $1 ) {
1387    return '-' + $1.toLowerCase();
1388  });
1389}
1390
1391var transitionProps = 'opacity,' + toDashedAll( transformProperty );
1392
1393proto.enableTransition = function(/* style */) {
1394  // HACK changing transitionProperty during a transition
1395  // will cause transition to jump
1396  if ( this.isTransitioning ) {
1397    return;
1398  }
1399
1400  // make `transition: foo, bar, baz` from style object
1401  // HACK un-comment this when enableTransition can work
1402  // while a transition is happening
1403  // var transitionValues = [];
1404  // for ( var prop in style ) {
1405  //   // dash-ify camelCased properties like WebkitTransition
1406  //   prop = vendorProperties[ prop ] || prop;
1407  //   transitionValues.push( toDashedAll( prop ) );
1408  // }
1409  // munge number to millisecond, to match stagger
1410  var duration = this.layout.options.transitionDuration;
1411  duration = typeof duration == 'number' ? duration + 'ms' : duration;
1412  // enable transition styles
1413  this.css({
1414    transitionProperty: transitionProps,
1415    transitionDuration: duration,
1416    transitionDelay: this.staggerDelay || 0
1417  });
1418  // listen for transition end event
1419  this.element.addEventListener( transitionEndEvent, this, false );
1420};
1421
1422// ----- events ----- //
1423
1424proto.onwebkitTransitionEnd = function( event ) {
1425  this.ontransitionend( event );
1426};
1427
1428proto.onotransitionend = function( event ) {
1429  this.ontransitionend( event );
1430};
1431
1432// properties that I munge to make my life easier
1433var dashedVendorProperties = {
1434  '-webkit-transform': 'transform'
1435};
1436
1437proto.ontransitionend = function( event ) {
1438  // disregard bubbled events from children
1439  if ( event.target !== this.element ) {
1440    return;
1441  }
1442  var _transition = this._transn;
1443  // get property name of transitioned property, convert to prefix-free
1444  var propertyName = dashedVendorProperties[ event.propertyName ] || event.propertyName;
1445
1446  // remove property that has completed transitioning
1447  delete _transition.ingProperties[ propertyName ];
1448  // check if any properties are still transitioning
1449  if ( isEmptyObj( _transition.ingProperties ) ) {
1450    // all properties have completed transitioning
1451    this.disableTransition();
1452  }
1453  // clean style
1454  if ( propertyName in _transition.clean ) {
1455    // clean up style
1456    this.element.style[ event.propertyName ] = '';
1457    delete _transition.clean[ propertyName ];
1458  }
1459  // trigger onTransitionEnd callback
1460  if ( propertyName in _transition.onEnd ) {
1461    var onTransitionEnd = _transition.onEnd[ propertyName ];
1462    onTransitionEnd.call( this );
1463    delete _transition.onEnd[ propertyName ];
1464  }
1465
1466  this.emitEvent( 'transitionEnd', [ this ] );
1467};
1468
1469proto.disableTransition = function() {
1470  this.removeTransitionStyles();
1471  this.element.removeEventListener( transitionEndEvent, this, false );
1472  this.isTransitioning = false;
1473};
1474
1475/**
1476 * removes style property from element
1477 * @param {Object} style
1478**/
1479proto._removeStyles = function( style ) {
1480  // clean up transition styles
1481  var cleanStyle = {};
1482  for ( var prop in style ) {
1483    cleanStyle[ prop ] = '';
1484  }
1485  this.css( cleanStyle );
1486};
1487
1488var cleanTransitionStyle = {
1489  transitionProperty: '',
1490  transitionDuration: '',
1491  transitionDelay: ''
1492};
1493
1494proto.removeTransitionStyles = function() {
1495  // remove transition
1496  this.css( cleanTransitionStyle );
1497};
1498
1499// ----- stagger ----- //
1500
1501proto.stagger = function( delay ) {
1502  delay = isNaN( delay ) ? 0 : delay;
1503  this.staggerDelay = delay + 'ms';
1504};
1505
1506// ----- show/hide/remove ----- //
1507
1508// remove element from DOM
1509proto.removeElem = function() {
1510  this.element.parentNode.removeChild( this.element );
1511  // remove display: none
1512  this.css({ display: '' });
1513  this.emitEvent( 'remove', [ this ] );
1514};
1515
1516proto.remove = function() {
1517  // just remove element if no transition support or no transition
1518  if ( !transitionProperty || !parseFloat( this.layout.options.transitionDuration ) ) {
1519    this.removeElem();
1520    return;
1521  }
1522
1523  // start transition
1524  this.once( 'transitionEnd', function() {
1525    this.removeElem();
1526  });
1527  this.hide();
1528};
1529
1530proto.reveal = function() {
1531  delete this.isHidden;
1532  // remove display: none
1533  this.css({ display: '' });
1534
1535  var options = this.layout.options;
1536
1537  var onTransitionEnd = {};
1538  var transitionEndProperty = this.getHideRevealTransitionEndProperty('visibleStyle');
1539  onTransitionEnd[ transitionEndProperty ] = this.onRevealTransitionEnd;
1540
1541  this.transition({
1542    from: options.hiddenStyle,
1543    to: options.visibleStyle,
1544    isCleaning: true,
1545    onTransitionEnd: onTransitionEnd
1546  });
1547};
1548
1549proto.onRevealTransitionEnd = function() {
1550  // check if still visible
1551  // during transition, item may have been hidden
1552  if ( !this.isHidden ) {
1553    this.emitEvent('reveal');
1554  }
1555};
1556
1557/**
1558 * get style property use for hide/reveal transition end
1559 * @param {String} styleProperty - hiddenStyle/visibleStyle
1560 * @returns {String}
1561 */
1562proto.getHideRevealTransitionEndProperty = function( styleProperty ) {
1563  var optionStyle = this.layout.options[ styleProperty ];
1564  // use opacity
1565  if ( optionStyle.opacity ) {
1566    return 'opacity';
1567  }
1568  // get first property
1569  for ( var prop in optionStyle ) {
1570    return prop;
1571  }
1572};
1573
1574proto.hide = function() {
1575  // set flag
1576  this.isHidden = true;
1577  // remove display: none
1578  this.css({ display: '' });
1579
1580  var options = this.layout.options;
1581
1582  var onTransitionEnd = {};
1583  var transitionEndProperty = this.getHideRevealTransitionEndProperty('hiddenStyle');
1584  onTransitionEnd[ transitionEndProperty ] = this.onHideTransitionEnd;
1585
1586  this.transition({
1587    from: options.visibleStyle,
1588    to: options.hiddenStyle,
1589    // keep hidden stuff hidden
1590    isCleaning: true,
1591    onTransitionEnd: onTransitionEnd
1592  });
1593};
1594
1595proto.onHideTransitionEnd = function() {
1596  // check if still hidden
1597  // during transition, item may have been un-hidden
1598  if ( this.isHidden ) {
1599    this.css({ display: 'none' });
1600    this.emitEvent('hide');
1601  }
1602};
1603
1604proto.destroy = function() {
1605  this.css({
1606    position: '',
1607    left: '',
1608    right: '',
1609    top: '',
1610    bottom: '',
1611    transition: '',
1612    transform: ''
1613  });
1614};
1615
1616return Item;
1617
1618}));
1619
1620/*!
1621 * Outlayer v2.1.1
1622 * the brains and guts of a layout library
1623 * MIT license
1624 */
1625
1626( function( window, factory ) {
1627  'use strict';
1628  // universal module definition
1629  /* jshint strict: false */ /* globals define, module, require */
1630  if ( typeof define == 'function' && define.amd ) {
1631    // AMD - RequireJS
1632    define( 'outlayer/outlayer',[
1633        'ev-emitter/ev-emitter',
1634        'get-size/get-size',
1635        'fizzy-ui-utils/utils',
1636        './item'
1637      ],
1638      function( EvEmitter, getSize, utils, Item ) {
1639        return factory( window, EvEmitter, getSize, utils, Item);
1640      }
1641    );
1642  } else if ( typeof module == 'object' && module.exports ) {
1643    // CommonJS - Browserify, Webpack
1644    module.exports = factory(
1645      window,
1646      require('ev-emitter'),
1647      require('get-size'),
1648      require('fizzy-ui-utils'),
1649      require('./item')
1650    );
1651  } else {
1652    // browser global
1653    window.Outlayer = factory(
1654      window,
1655      window.EvEmitter,
1656      window.getSize,
1657      window.fizzyUIUtils,
1658      window.Outlayer.Item
1659    );
1660  }
1661
1662}( window, function factory( window, EvEmitter, getSize, utils, Item ) {
1663'use strict';
1664
1665// ----- vars ----- //
1666
1667var console = window.console;
1668var jQuery = window.jQuery;
1669var noop = function() {};
1670
1671// -------------------------- Outlayer -------------------------- //
1672
1673// globally unique identifiers
1674var GUID = 0;
1675// internal store of all Outlayer intances
1676var instances = {};
1677
1678
1679/**
1680 * @param {Element, String} element
1681 * @param {Object} options
1682 * @constructor
1683 */
1684function Outlayer( element, options ) {
1685  var queryElement = utils.getQueryElement( element );
1686  if ( !queryElement ) {
1687    if ( console ) {
1688      console.error( 'Bad element for ' + this.constructor.namespace +
1689        ': ' + ( queryElement || element ) );
1690    }
1691    return;
1692  }
1693  this.element = queryElement;
1694  // add jQuery
1695  if ( jQuery ) {
1696    this.$element = jQuery( this.element );
1697  }
1698
1699  // options
1700  this.options = utils.extend( {}, this.constructor.defaults );
1701  this.option( options );
1702
1703  // add id for Outlayer.getFromElement
1704  var id = ++GUID;
1705  this.element.outlayerGUID = id; // expando
1706  instances[ id ] = this; // associate via id
1707
1708  // kick it off
1709  this._create();
1710
1711  var isInitLayout = this._getOption('initLayout');
1712  if ( isInitLayout ) {
1713    this.layout();
1714  }
1715}
1716
1717// settings are for internal use only
1718Outlayer.namespace = 'outlayer';
1719Outlayer.Item = Item;
1720
1721// default options
1722Outlayer.defaults = {
1723  containerStyle: {
1724    position: 'relative'
1725  },
1726  initLayout: true,
1727  originLeft: true,
1728  originTop: true,
1729  resize: true,
1730  resizeContainer: true,
1731  // item options
1732  transitionDuration: '0.4s',
1733  hiddenStyle: {
1734    opacity: 0,
1735    transform: 'scale(0.001)'
1736  },
1737  visibleStyle: {
1738    opacity: 1,
1739    transform: 'scale(1)'
1740  }
1741};
1742
1743var proto = Outlayer.prototype;
1744// inherit EvEmitter
1745utils.extend( proto, EvEmitter.prototype );
1746
1747/**
1748 * set options
1749 * @param {Object} opts
1750 */
1751proto.option = function( opts ) {
1752  utils.extend( this.options, opts );
1753};
1754
1755/**
1756 * get backwards compatible option value, check old name
1757 */
1758proto._getOption = function( option ) {
1759  var oldOption = this.constructor.compatOptions[ option ];
1760  return oldOption && this.options[ oldOption ] !== undefined ?
1761    this.options[ oldOption ] : this.options[ option ];
1762};
1763
1764Outlayer.compatOptions = {
1765  // currentName: oldName
1766  initLayout: 'isInitLayout',
1767  horizontal: 'isHorizontal',
1768  layoutInstant: 'isLayoutInstant',
1769  originLeft: 'isOriginLeft',
1770  originTop: 'isOriginTop',
1771  resize: 'isResizeBound',
1772  resizeContainer: 'isResizingContainer'
1773};
1774
1775proto._create = function() {
1776  // get items from children
1777  this.reloadItems();
1778  // elements that affect layout, but are not laid out
1779  this.stamps = [];
1780  this.stamp( this.options.stamp );
1781  // set container style
1782  utils.extend( this.element.style, this.options.containerStyle );
1783
1784  // bind resize method
1785  var canBindResize = this._getOption('resize');
1786  if ( canBindResize ) {
1787    this.bindResize();
1788  }
1789};
1790
1791// goes through all children again and gets bricks in proper order
1792proto.reloadItems = function() {
1793  // collection of item elements
1794  this.items = this._itemize( this.element.children );
1795};
1796
1797
1798/**
1799 * turn elements into Outlayer.Items to be used in layout
1800 * @param {Array or NodeList or HTMLElement} elems
1801 * @returns {Array} items - collection of new Outlayer Items
1802 */
1803proto._itemize = function( elems ) {
1804
1805  var itemElems = this._filterFindItemElements( elems );
1806  var Item = this.constructor.Item;
1807
1808  // create new Outlayer Items for collection
1809  var items = [];
1810  for ( var i=0; i < itemElems.length; i++ ) {
1811    var elem = itemElems[i];
1812    var item = new Item( elem, this );
1813    items.push( item );
1814  }
1815
1816  return items;
1817};
1818
1819/**
1820 * get item elements to be used in layout
1821 * @param {Array or NodeList or HTMLElement} elems
1822 * @returns {Array} items - item elements
1823 */
1824proto._filterFindItemElements = function( elems ) {
1825  return utils.filterFindElements( elems, this.options.itemSelector );
1826};
1827
1828/**
1829 * getter method for getting item elements
1830 * @returns {Array} elems - collection of item elements
1831 */
1832proto.getItemElements = function() {
1833  return this.items.map( function( item ) {
1834    return item.element;
1835  });
1836};
1837
1838// ----- init & layout ----- //
1839
1840/**
1841 * lays out all items
1842 */
1843proto.layout = function() {
1844  this._resetLayout();
1845  this._manageStamps();
1846
1847  // don't animate first layout
1848  var layoutInstant = this._getOption('layoutInstant');
1849  var isInstant = layoutInstant !== undefined ?
1850    layoutInstant : !this._isLayoutInited;
1851  this.layoutItems( this.items, isInstant );
1852
1853  // flag for initalized
1854  this._isLayoutInited = true;
1855};
1856
1857// _init is alias for layout
1858proto._init = proto.layout;
1859
1860/**
1861 * logic before any new layout
1862 */
1863proto._resetLayout = function() {

1864  this.getSize();
1865};
1866
1867
1868proto.getSize = function() {
1869  this.size = getSize( this.element );
1870};
1871
1872/**
1873 * get measurement from option, for columnWidth, rowHeight, gutter
1874 * if option is String -> get element from selector string, & get size of element
1875 * if option is Element -> get size of element
1876 * else use option as a number
1877 *
1878 * @param {String} measurement
1879 * @param {String} size - width or height
1880 * @private
1881 */
1882proto._getMeasurement = function( measurement, size ) {
1883  var option = this.options[ measurement ];
1884  var elem;
1885  if ( !option ) {
1886    // default to 0
1887    this[ measurement ] = 0;
1888  } else {
1889    // use option as an element
1890    if ( typeof option == 'string' ) {
1891      elem = this.element.querySelector( option );
1892    } else if ( option instanceof HTMLElement ) {
1893      elem = option;
1894    }
1895    // use size of element, if element
1896    this[ measurement ] = elem ? getSize( elem )[ size ] : option;
1897  }
1898};
1899
1900/**
1901 * layout a collection of item elements
1902 * @api public
1903 */
1904proto.layoutItems = function( items, isInstant ) {
1905  items = this._getItemsForLayout( items );
1906
1907  this._layoutItems( items, isInstant );
1908
1909  this._postLayout();
1910};
1911
1912/**
1913 * get the items to be laid out
1914 * you may want to skip over some items
1915 * @param {Array} items
1916 * @returns {Array} items
1917 */
1918proto._getItemsForLayout = function( items ) {
1919  return items.filter( function( item ) {
1920    return !item.isIgnored;
1921  });
1922};
1923
1924/**
1925 * layout items
1926 * @param {Array} items
1927 * @param {Boolean} isInstant
1928 */
1929proto._layoutItems = function( items, isInstant ) {
1930  this._emitCompleteOnItems( 'layout', items );
1931
1932  if ( !items || !items.length ) {
1933    // no items, emit event with empty array
1934    return;
1935  }
1936
1937  var queue = [];
1938
1939  items.forEach( function( item ) {
1940    // get x/y object from method
1941    var position = this._getItemLayoutPosition( item );
1942    // enqueue
1943    position.item = item;
1944    position.isInstant = isInstant || item.isLayoutInstant;
1945    queue.push( position );
1946  }, this );
1947
1948  this._processLayoutQueue( queue );
1949};
1950
1951/**
1952 * get item layout position
1953 * @param {Outlayer.Item} item
1954 * @returns {Object} x and y position
1955 */
1956proto._getItemLayoutPosition = function( /* item */ ) {
1957  return {
1958    x: 0,
1959    y: 0
1960  };
1961};
1962
1963/**
1964 * iterate over array and position each item
1965 * Reason being - separating this logic prevents 'layout invalidation'
1966 * thx @paul_irish
1967 * @param {Array} queue
1968 */
1969proto._processLayoutQueue = function( queue ) {
1970  this.updateStagger();
1971  queue.forEach( function( obj, i ) {
1972    this._positionItem( obj.item, obj.x, obj.y, obj.isInstant, i );
1973  }, this );
1974};
1975
1976// set stagger from option in milliseconds number
1977proto.updateStagger = function() {
1978  var stagger = this.options.stagger;
1979  if ( stagger === null || stagger === undefined ) {
1980    this.stagger = 0;
1981    return;
1982  }
1983  this.stagger = getMilliseconds( stagger );
1984  return this.stagger;
1985};
1986
1987/**
1988 * Sets position of item in DOM
1989 * @param {Outlayer.Item} item
1990 * @param {Number} x - horizontal position
1991 * @param {Number} y - vertical position
1992 * @param {Boolean} isInstant - disables transitions
1993 */
1994proto._positionItem = function( item, x, y, isInstant, i ) {
1995  if ( isInstant ) {
1996    // if not transition, just set CSS
1997    item.goTo( x, y );
1998  } else {
1999    item.stagger( i * this.stagger );
2000    item.moveTo( x, y );
2001  }
2002};
2003
2004/**
2005 * Any logic you want to do after each layout,
2006 * i.e. size the container
2007 */
2008proto._postLayout = function() {
2009  this.resizeContainer();
2010};
2011
2012proto.resizeContainer = function() {
2013  var isResizingContainer = this._getOption('resizeContainer');
2014  if ( !isResizingContainer ) {
2015    return;
2016  }
2017  var size = this._getContainerSize();
2018  if ( size ) {
2019    this._setContainerMeasure( size.width, true );
2020    this._setContainerMeasure( size.height, false );
2021  }
2022};
2023
2024/**
2025 * Sets width or height of container if returned
2026 * @returns {Object} size
2027 *   @param {Number} width
2028 *   @param {Number} height
2029 */
2030proto._getContainerSize = noop;
2031
2032/**
2033 * @param {Number} measure - size of width or height
2034 * @param {Boolean} isWidth
2035 */
2036proto._setContainerMeasure = function( measure, isWidth ) {
2037  if ( measure === undefined ) {
2038    return;
2039  }
2040
2041  var elemSize = this.size;
2042  // add padding and border width if border box
2043  if ( elemSize.isBorderBox ) {
2044    measure += isWidth ? elemSize.paddingLeft + elemSize.paddingRight +
2045      elemSize.borderLeftWidth + elemSize.borderRightWidth :
2046      elemSize.paddingBottom + elemSize.paddingTop +
2047      elemSize.borderTopWidth + elemSize.borderBottomWidth;
2048  }
2049
2050  measure = Math.max( measure, 0 );
2051  this.element.style[ isWidth ? 'width' : 'height' ] = measure + 'px';
2052};
2053
2054/**
2055 * emit eventComplete on a collection of items events
2056 * @param {String} eventName
2057 * @param {Array} items - Outlayer.Items
2058 */
2059proto._emitCompleteOnItems = function( eventName, items ) {
2060  var _this = this;
2061  function onComplete() {
2062    _this.dispatchEvent( eventName + 'Complete', null, [ items ] );
2063  }
2064
2065  var count = items.length;
2066  if ( !items || !count ) {
2067    onComplete();
2068    return;
2069  }
2070
2071  var doneCount = 0;
2072  function tick() {
2073    doneCount++;
2074    if ( doneCount == count ) {
2075      onComplete();
2076    }
2077  }
2078
2079  // bind callback
2080  items.forEach( function( item ) {
2081    item.once( eventName, tick );
2082  });
2083};
2084
2085/**
2086 * emits events via EvEmitter and jQuery events
2087 * @param {String} type - name of event
2088 * @param {Event} event - original event
2089 * @param {Array} args - extra arguments
2090 */
2091proto.dispatchEvent = function( type, event, args ) {
2092  // add original event to arguments
2093  var emitArgs = event ? [ event ].concat( args ) : args;
2094  this.emitEvent( type, emitArgs );
2095
2096  if ( jQuery ) {
2097    // set this.$element
2098    this.$element = this.$element || jQuery( this.element );
2099    if ( event ) {
2100      // create jQuery event
2101      var $event = jQuery.Event( event );
2102      $event.type = type;
2103      this.$element.trigger( $event, args );
2104    } else {
2105      // just trigger with type if no event available
2106      this.$element.trigger( type, args );
2107    }
2108  }
2109};
2110
2111// -------------------------- ignore & stamps -------------------------- //
2112
2113
2114/**
2115 * keep item in collection, but do not lay it out
2116 * ignored items do not get skipped in layout
2117 * @param {Element} elem
2118 */
2119proto.ignore = function( elem ) {
2120  var item = this.getItem( elem );
2121  if ( item ) {
2122    item.isIgnored = true;
2123  }
2124};
2125
2126/**
2127 * return item to layout collection
2128 * @param {Element} elem
2129 */
2130proto.unignore = function( elem ) {
2131  var item = this.getItem( elem );
2132  if ( item ) {
2133    delete item.isIgnored;
2134  }
2135};
2136
2137/**
2138 * adds elements to stamps
2139 * @param {NodeList, Array, Element, or String} elems
2140 */
2141proto.stamp = function( elems ) {
2142  elems = this._find( elems );
2143  if ( !elems ) {
2144    return;
2145  }
2146
2147  this.stamps = this.stamps.concat( elems );
2148  // ignore
2149  elems.forEach( this.ignore, this );
2150};
2151
2152/**
2153 * removes elements to stamps
2154 * @param {NodeList, Array, or Element} elems
2155 */
2156proto.unstamp = function( elems ) {
2157  elems = this._find( elems );
2158  if ( !elems ){
2159    return;
2160  }
2161
2162  elems.forEach( function( elem ) {
2163    // filter out removed stamp elements
2164    utils.removeFrom( this.stamps, elem );
2165    this.unignore( elem );
2166  }, this );
2167};
2168
2169/**
2170 * finds child elements
2171 * @param {NodeList, Array, Element, or String} elems
2172 * @returns {Array} elems
2173 */
2174proto._find = function( elems ) {
2175  if ( !elems ) {
2176    return;
2177  }
2178  // if string, use argument as selector string
2179  if ( typeof elems == 'string' ) {
2180    elems = this.element.querySelectorAll( elems );
2181  }
2182  elems = utils.makeArray( elems );
2183  return elems;
2184};
2185
2186proto._manageStamps = function() {
2187  if ( !this.stamps || !this.stamps.length ) {
2188    return;
2189  }
2190
2191  this._getBoundingRect();
2192
2193  this.stamps.forEach( this._manageStamp, this );
2194};
2195
2196// update boundingLeft / Top
2197proto._getBoundingRect = function() {
2198  // get bounding rect for container element
2199  var boundingRect = this.element.getBoundingClientRect();
2200  var size = this.size;
2201  this._boundingRect = {
2202    left: boundingRect.left + size.paddingLeft + size.borderLeftWidth,
2203    top: boundingRect.top + size.paddingTop + size.borderTopWidth,
2204    right: boundingRect.right - ( size.paddingRight + size.borderRightWidth ),
2205    bottom: boundingRect.bottom - ( size.paddingBottom + size.borderBottomWidth )
2206  };
2207};
2208
2209/**
2210 * @param {Element} stamp
2211**/
2212proto._manageStamp = noop;
2213
2214/**
2215 * get x/y position of element relative to container element
2216 * @param {Element} elem
2217 * @returns {Object} offset - has left, top, right, bottom
2218 */
2219proto._getElementOffset = function( elem ) {
2220  var boundingRect = elem.getBoundingClientRect();
2221  var thisRect = this._boundingRect;
2222  var size = getSize( elem );
2223  var offset = {
2224    left: boundingRect.left - thisRect.left - size.marginLeft,
2225    top: boundingRect.top - thisRect.top - size.marginTop,
2226    right: thisRect.right - boundingRect.right - size.marginRight,
2227    bottom: thisRect.bottom - boundingRect.bottom - size.marginBottom
2228  };
2229  return offset;
2230};
2231
2232// -------------------------- resize -------------------------- //
2233
2234// enable event handlers for listeners
2235// i.e. resize -> onresize
2236proto.handleEvent = utils.handleEvent;
2237
2238/**
2239 * Bind layout to window resizing
2240 */
2241proto.bindResize = function() {
2242  window.addEventListener( 'resize', this );
2243  this.isResizeBound = true;
2244};
2245
2246/**
2247 * Unbind layout to window resizing
2248 */
2249proto.unbindResize = function() {
2250  window.removeEventListener( 'resize', this );
2251  this.isResizeBound = false;
2252};
2253
2254proto.onresize = function() {
2255  this.resize();
2256};
2257
2258utils.debounceMethod( Outlayer, 'onresize', 100 );
2259
2260proto.resize = function() {
2261  // don't trigger if size did not change
2262  // or if resize was unbound. See #9
2263  if ( !this.isResizeBound || !this.needsResizeLayout() ) {
2264    return;
2265  }
2266
2267  this.layout();
2268};
2269
2270/**
2271 * check if layout is needed post layout
2272 * @returns Boolean
2273 */
2274proto.needsResizeLayout = function() {
2275  var size = getSize( this.element );
2276  // check that this.size and size are there
2277  // IE8 triggers resize on body size change, so they might not be
2278  var hasSizes = this.size && size;
2279  return hasSizes && size.innerWidth !== this.size.innerWidth;
2280};
2281
2282// -------------------------- methods -------------------------- //
2283
2284/**
2285 * add items to Outlayer instance
2286 * @param {Array or NodeList or Element} elems
2287 * @returns {Array} items - Outlayer.Items
2288**/
2289proto.addItems = function( elems ) {
2290  var items = this._itemize( elems );
2291  // add items to collection
2292  if ( items.length ) {
2293    this.items = this.items.concat( items );
2294  }
2295  return items;
2296};
2297
2298/**
2299 * Layout newly-appended item elements
2300 * @param {Array or NodeList or Element} elems
2301 */
2302proto.appended = function( elems ) {
2303  var items = this.addItems( elems );
2304  if ( !items.length ) {
2305    return;
2306  }
2307  // layout and reveal just the new items
2308  this.layoutItems( items, true );
2309  this.reveal( items );
2310};
2311
2312/**
2313 * Layout prepended elements
2314 * @param {Array or NodeList or Element} elems
2315 */
2316proto.prepended = function( elems ) {
2317  var items = this._itemize( elems );
2318  if ( !items.length ) {
2319    return;
2320  }
2321  // add items to beginning of collection
2322  var previousItems = this.items.slice(0);
2323  this.items = items.concat( previousItems );
2324  // start new layout
2325  this._resetLayout();
2326  this._manageStamps();
2327  // layout new stuff without transition
2328  this.layoutItems( items, true );
2329  this.reveal( items );
2330  // layout previous items
2331  this.layoutItems( previousItems );
2332};
2333
2334/**
2335 * reveal a collection of items
2336 * @param {Array of Outlayer.Items} items
2337 */
2338proto.reveal = function( items ) {
2339  this._emitCompleteOnItems( 'reveal', items );
2340  if ( !items || !items.length ) {
2341    return;
2342  }
2343  var stagger = this.updateStagger();
2344  items.forEach( function( item, i ) {
2345    item.stagger( i * stagger );
2346    item.reveal();
2347  });
2348};
2349
2350/**
2351 * hide a collection of items
2352 * @param {Array of Outlayer.Items} items
2353 */
2354proto.hide = function( items ) {
2355  this._emitCompleteOnItems( 'hide', items );
2356  if ( !items || !items.length ) {
2357    return;
2358  }
2359  var stagger = this.updateStagger();
2360  items.forEach( function( item, i ) {
2361    item.stagger( i * stagger );
2362    item.hide();
2363  });
2364};
2365
2366/**
2367 * reveal item elements
2368 * @param {Array}, {Element}, {NodeList} items
2369 */
2370proto.revealItemElements = function( elems ) {
2371  var items = this.getItems( elems );
2372  this.reveal( items );
2373};
2374
2375/**
2376 * hide item elements
2377 * @param {Array}, {Element}, {NodeList} items
2378 */
2379proto.hideItemElements = function( elems ) {
2380  var items = this.getItems( elems );
2381  this.hide( items );
2382};
2383
2384/**
2385 * get Outlayer.Item, given an Element
2386 * @param {Element} elem
2387 * @param {Function} callback
2388 * @returns {Outlayer.Item} item
2389 */
2390proto.getItem = function( elem ) {
2391  // loop through items to get the one that matches
2392  for ( var i=0; i < this.items.length; i++ ) {
2393    var item = this.items[i];
2394    if ( item.element == elem ) {
2395      // return item
2396      return item;
2397    }
2398  }
2399};
2400
2401/**
2402 * get collection of Outlayer.Items, given Elements
2403 * @param {Array} elems
2404 * @returns {Array} items - Outlayer.Items
2405 */
2406proto.getItems = function( elems ) {
2407  elems = utils.makeArray( elems );
2408  var items = [];
2409  elems.forEach( function( elem ) {
2410    var item = this.getItem( elem );
2411    if ( item ) {
2412      items.push( item );
2413    }
2414  }, this );
2415
2416  return items;
2417};
2418
2419/**
2420 * remove element(s) from instance and DOM
2421 * @param {Array or NodeList or Element} elems
2422 */
2423proto.remove = function( elems ) {
2424  var removeItems = this.getItems( elems );
2425
2426  this._emitCompleteOnItems( 'remove', removeItems );
2427
2428  // bail if no items to remove
2429  if ( !removeItems || !removeItems.length ) {
2430    return;
2431  }
2432

2433  removeItems.forEach( function( item ) {
2434    item.remove();
2435    // remove item from collection
2436    utils.removeFrom( this.items, item );
2437  }, this );
2438};
2439
2440// ----- destroy ----- //
2441
2442// remove and disable Outlayer instance
2443proto.destroy = function() {
2444  // clean up dynamic styles
2445  var style = this.element.style;
2446  style.height = '';
2447  style.position = '';
2448  style.width = '';
2449  // destroy items
2450  this.items.forEach( function( item ) {
2451    item.destroy();
2452  });
2453
2454  this.unbindResize();
2455
2456  var id = this.element.outlayerGUID;
2457  delete instances[ id ]; // remove reference to instance by id
2458  delete this.element.outlayerGUID;
2459  // remove data for jQuery
2460  if ( jQuery ) {
2461    jQuery.removeData( this.element, this.constructor.namespace );
2462  }
2463
2464};
2465
2466// -------------------------- data -------------------------- //
2467
2468/**
2469 * get Outlayer instance from element
2470 * @param {Element} elem
2471 * @returns {Outlayer}
2472 */
2473Outlayer.data = function( elem ) {
2474  elem = utils.getQueryElement( elem );
2475  var id = elem && elem.outlayerGUID;
2476  return id && instances[ id ];
2477};
2478
2479
2480// -------------------------- create Outlayer class -------------------------- //
2481
2482/**
2483 * create a layout class
2484 * @param {String} namespace
2485 */
2486Outlayer.create = function( namespace, options ) {
2487  // sub-class Outlayer
2488  var Layout = subclass( Outlayer );
2489  // apply new options and compatOptions
2490  Layout.defaults = utils.extend( {}, Outlayer.defaults );
2491  utils.extend( Layout.defaults, options );
2492  Layout.compatOptions = utils.extend( {}, Outlayer.compatOptions  );
2493
2494  Layout.namespace = namespace;
2495
2496  Layout.data = Outlayer.data;
2497
2498  // sub-class Item
2499  Layout.Item = subclass( Item );
2500
2501  // -------------------------- declarative -------------------------- //
2502
2503  utils.htmlInit( Layout, namespace );
2504
2505  // -------------------------- jQuery bridge -------------------------- //
2506
2507  // make into jQuery plugin
2508  if ( jQuery && jQuery.bridget ) {
2509    jQuery.bridget( namespace, Layout );
2510  }
2511
2512  return Layout;
2513};
2514
2515function subclass( Parent ) {
2516  function SubClass() {
2517    Parent.apply( this, arguments );
2518  }
2519
2520  SubClass.prototype = Object.create( Parent.prototype );
2521  SubClass.prototype.constructor = SubClass;
2522
2523  return SubClass;
2524}
2525
2526// ----- helpers ----- //
2527
2528// how many milliseconds are in each unit
2529var msUnits = {
2530  ms: 1,
2531  s: 1000
2532};
2533
2534// munge time-like parameter into millisecond number
2535// '0.4s' -> 40
2536function getMilliseconds( time ) {
2537  if ( typeof time == 'number' ) {
2538    return time;
2539  }
2540  var matches = time.match( /(^\d*\.?\d*)(\w*)/ );
2541  var num = matches && matches[1];
2542  var unit = matches && matches[2];
2543  if ( !num.length ) {
2544    return 0;
2545  }
2546  num = parseFloat( num );
2547  var mult = msUnits[ unit ] || 1;
2548  return num * mult;
2549}
2550
2551// ----- fin ----- //
2552
2553// back in global
2554Outlayer.Item = Item;
2555
2556return Outlayer;
2557
2558}));
2559
2560/**
2561 * Isotope Item
2562**/
2563
2564( function( window, factory ) {
2565  // universal module definition
2566  /* jshint strict: false */ /*globals define, module, require */
2567  if ( typeof define == 'function' && define.amd ) {
2568    // AMD
2569    define( 'isotope-layout/js/item',[
2570        'outlayer/outlayer'
2571      ],
2572      factory );
2573  } else if ( typeof module == 'object' && module.exports ) {
2574    // CommonJS
2575    module.exports = factory(
2576      require('outlayer')
2577    );
2578  } else {
2579    // browser global
2580    window.Isotope = window.Isotope || {};
2581    window.Isotope.Item = factory(
2582      window.Outlayer
2583    );
2584  }
2585
2586}( window, function factory( Outlayer ) {
2587'use strict';
2588
2589// -------------------------- Item -------------------------- //
2590
2591// sub-class Outlayer Item
2592function Item() {
2593  Outlayer.Item.apply( this, arguments );
2594}
2595
2596var proto = Item.prototype = Object.create( Outlayer.Item.prototype );
2597
2598var _create = proto._create;
2599proto._create = function() {
2600  // assign id, used for original-order sorting
2601  this.id = this.layout.itemGUID++;
2602  _create.call( this );
2603  this.sortData = {};
2604};
2605
2606proto.updateSortData = function() {
2607  if ( this.isIgnored ) {
2608    return;
2609  }
2610  // default sorters
2611  this.sortData.id = this.id;
2612  // for backward compatibility
2613  this.sortData['original-order'] = this.id;
2614  this.sortData.random = Math.random();
2615  // go thru getSortData obj and apply the sorters
2616  var getSortData = this.layout.options.getSortData;
2617  var sorters = this.layout._sorters;
2618  for ( var key in getSortData ) {
2619    var sorter = sorters[ key ];
2620    this.sortData[ key ] = sorter( this.element, this );
2621  }
2622};
2623
2624var _destroy = proto.destroy;
2625proto.destroy = function() {
2626  // call super
2627  _destroy.apply( this, arguments );
2628  // reset display, #741
2629  this.css({
2630    display: ''
2631  });
2632};
2633
2634return Item;
2635
2636}));
2637
2638/**
2639 * Isotope LayoutMode
2640 */
2641
2642( function( window, factory ) {
2643  // universal module definition
2644  /* jshint strict: false */ /*globals define, module, require */
2645  if ( typeof define == 'function' && define.amd ) {
2646    // AMD
2647    define( 'isotope-layout/js/layout-mode',[
2648        'get-size/get-size',
2649        'outlayer/outlayer'
2650      ],
2651      factory );
2652  } else if ( typeof module == 'object' && module.exports ) {
2653    // CommonJS
2654    module.exports = factory(
2655      require('get-size'),
2656      require('outlayer')
2657    );
2658  } else {
2659    // browser global
2660    window.Isotope = window.Isotope || {};
2661    window.Isotope.LayoutMode = factory(
2662      window.getSize,
2663      window.Outlayer
2664    );
2665  }
2666
2667}( window, function factory( getSize, Outlayer ) {
2668  'use strict';
2669
2670  // layout mode class
2671  function LayoutMode( isotope ) {
2672    this.isotope = isotope;
2673    // link properties
2674    if ( isotope ) {
2675      this.options = isotope.options[ this.namespace ];
2676      this.element = isotope.element;
2677      this.items = isotope.filteredItems;
2678      this.size = isotope.size;
2679    }
2680  }
2681
2682  var proto = LayoutMode.prototype;
2683
2684  /**
2685   * some methods should just defer to default Outlayer method
2686   * and reference the Isotope instance as `this`
2687  **/
2688  var facadeMethods = [
2689    '_resetLayout',
2690    '_getItemLayoutPosition',
2691    '_manageStamp',
2692    '_getContainerSize',
2693    '_getElementOffset',
2694    'needsResizeLayout',
2695    '_getOption'
2696  ];
2697
2698  facadeMethods.forEach( function( methodName ) {
2699    proto[ methodName ] = function() {
2700      return Outlayer.prototype[ methodName ].apply( this.isotope, arguments );
2701    };
2702  });
2703
2704  // -----  ----- //
2705
2706  // for horizontal layout modes, check vertical size
2707  proto.needsVerticalResizeLayout = function() {
2708    // don't trigger if size did not change
2709    var size = getSize( this.isotope.element );
2710    // check that this.size and size are there
2711    // IE8 triggers resize on body size change, so they might not be
2712    var hasSizes = this.isotope.size && size;
2713    return hasSizes && size.innerHeight != this.isotope.size.innerHeight;
2714  };
2715
2716  // ----- measurements ----- //
2717
2718  proto._getMeasurement = function() {
2719    this.isotope._getMeasurement.apply( this, arguments );
2720  };
2721
2722  proto.getColumnWidth = function() {
2723    this.getSegmentSize( 'column', 'Width' );
2724  };
2725
2726  proto.getRowHeight = function() {
2727    this.getSegmentSize( 'row', 'Height' );
2728  };
2729
2730  /**
2731   * get columnWidth or rowHeight
2732   * segment: 'column' or 'row'
2733   * size 'Width' or 'Height'
2734  **/
2735  proto.getSegmentSize = function( segment, size ) {
2736    var segmentName = segment + size;
2737    var outerSize = 'outer' + size;
2738    // columnWidth / outerWidth // rowHeight / outerHeight
2739    this._getMeasurement( segmentName, outerSize );
2740    // got rowHeight or columnWidth, we can chill
2741    if ( this[ segmentName ] ) {
2742      return;
2743    }
2744    // fall back to item of first element
2745    var firstItemSize = this.getFirstItemSize();
2746    this[ segmentName ] = firstItemSize && firstItemSize[ outerSize ] ||
2747      // or size of container
2748      this.isotope.size[ 'inner' + size ];
2749  };
2750
2751  proto.getFirstItemSize = function() {
2752    var firstItem = this.isotope.filteredItems[0];
2753    return firstItem && firstItem.element && getSize( firstItem.element );
2754  };
2755
2756  // ----- methods that should reference isotope ----- //
2757
2758  proto.layout = function() {
2759    this.isotope.layout.apply( this.isotope, arguments );
2760  };
2761
2762  proto.getSize = function() {
2763    this.isotope.getSize();
2764    this.size = this.isotope.size;
2765  };
2766
2767  // -------------------------- create -------------------------- //
2768
2769  LayoutMode.modes = {};
2770
2771  LayoutMode.create = function( namespace, options ) {
2772
2773    function Mode() {
2774      LayoutMode.apply( this, arguments );
2775    }
2776
2777    Mode.prototype = Object.create( proto );
2778    Mode.prototype.constructor = Mode;
2779
2780    // default options
2781    if ( options ) {
2782      Mode.options = options;
2783    }
2784
2785    Mode.prototype.namespace = namespace;
2786    // register in Isotope
2787    LayoutMode.modes[ namespace ] = Mode;
2788
2789    return Mode;
2790  };
2791
2792  return LayoutMode;
2793
2794}));
2795
2796/*!
2797 * Masonry v4.2.1
2798 * Cascading grid layout library
2799 * https://masonry.desandro.com
2800 * MIT License
2801 * by David DeSandro
2802 */
2803
2804( function( window, factory ) {
2805  // universal module definition
2806  /* jshint strict: false */ /*globals define, module, require */
2807  if ( typeof define == 'function' && define.amd ) {
2808    // AMD
2809    define( 'masonry-layout/masonry',[
2810        'outlayer/outlayer',
2811        'get-size/get-size'
2812      ],
2813      factory );
2814  } else if ( typeof module == 'object' && module.exports ) {
2815    // CommonJS
2816    module.exports = factory(
2817      require('outlayer'),
2818      require('get-size')
2819    );
2820  } else {
2821    // browser global
2822    window.Masonry = factory(
2823      window.Outlayer,
2824      window.getSize
2825    );
2826  }
2827
2828}( window, function factory( Outlayer, getSize ) {
2829
2830
2831
2832// -------------------------- masonryDefinition -------------------------- //
2833
2834  // create an Outlayer layout class
2835  var Masonry = Outlayer.create('masonry');
2836  // isFitWidth -> fitWidth
2837  Masonry.compatOptions.fitWidth = 'isFitWidth';
2838
2839  var proto = Masonry.prototype;
2840
2841  proto._resetLayout = function() {
2842    this.getSize();
2843    this._getMeasurement( 'columnWidth', 'outerWidth' );
2844    this._getMeasurement( 'gutter', 'outerWidth' );
2845    this.measureColumns();
2846
2847    // reset column Y
2848    this.colYs = [];
2849    for ( var i=0; i < this.cols; i++ ) {
2850      this.colYs.push( 0 );
2851    }
2852
2853    this.maxY = 0;
2854    this.horizontalColIndex = 0;
2855  };
2856
2857  proto.measureColumns = function() {
2858    this.getContainerWidth();
2859    // if columnWidth is 0, default to outerWidth of first item
2860    if ( !this.columnWidth ) {
2861      var firstItem = this.items[0];
2862      var firstItemElem = firstItem && firstItem.element;
2863      // columnWidth fall back to item of first element
2864      this.columnWidth = firstItemElem && getSize( firstItemElem ).outerWidth ||
2865        // if first elem has no width, default to size of container
2866        this.containerWidth;
2867    }
2868
2869    var columnWidth = this.columnWidth += this.gutter;
2870
2871    // calculate columns
2872    var containerWidth = this.containerWidth + this.gutter;
2873    var cols = containerWidth / columnWidth;
2874    // fix rounding errors, typically with gutters
2875    var excess = columnWidth - containerWidth % columnWidth;
2876    // if overshoot is less than a pixel, round up, otherwise floor it
2877    var mathMethod = excess && excess < 1 ? 'round' : 'floor';
2878    cols = Math[ mathMethod ]( cols );
2879    this.cols = Math.max( cols, 1 );
2880  };
2881
2882  proto.getContainerWidth = function() {
2883    // container is parent if fit width
2884    var isFitWidth = this._getOption('fitWidth');
2885    var container = isFitWidth ? this.element.parentNode : this.element;
2886    // check that this.size and size are there
2887    // IE8 triggers resize on body size change, so they might not be
2888    var size = getSize( container );
2889    this.containerWidth = size && size.innerWidth;
2890  };
2891
2892  proto._getItemLayoutPosition = function( item ) {
2893    item.getSize();
2894    // how many columns does this brick span
2895    var remainder = item.size.outerWidth % this.columnWidth;
2896    var mathMethod = remainder && remainder < 1 ? 'round' : 'ceil';
2897    // round if off by 1 pixel, otherwise use ceil
2898    var colSpan = Math[ mathMethod ]( item.size.outerWidth / this.columnWidth );
2899    colSpan = Math.min( colSpan, this.cols );
2900    // use horizontal or top column position
2901    var colPosMethod = this.options.horizontalOrder ?
2902      '_getHorizontalColPosition' : '_getTopColPosition';
2903    var colPosition = this[ colPosMethod ]( colSpan, item );
2904    // position the brick
2905    var position = {
2906      x: this.columnWidth * colPosition.col,
2907      y: colPosition.y
2908    };
2909    // apply setHeight to necessary columns
2910    var setHeight = colPosition.y + item.size.outerHeight;
2911    var setMax = colSpan + colPosition.col;
2912    for ( var i = colPosition.col; i < setMax; i++ ) {
2913      this.colYs[i] = setHeight;
2914    }
2915
2916    return position;
2917  };
2918
2919  proto._getTopColPosition = function( colSpan ) {
2920    var colGroup = this._getTopColGroup( colSpan );
2921    // get the minimum Y value from the columns
2922    var minimumY = Math.min.apply( Math, colGroup );
2923
2924    return {
2925      col: colGroup.indexOf( minimumY ),
2926      y: minimumY,
2927    };
2928  };
2929
2930  /**
2931   * @param {Number} colSpan - number of columns the element spans
2932   * @returns {Array} colGroup
2933   */
2934  proto._getTopColGroup = function( colSpan ) {
2935    if ( colSpan < 2 ) {
2936      // if brick spans only one column, use all the column Ys
2937      return this.colYs;
2938    }
2939
2940    var colGroup = [];
2941    // how many different places could this brick fit horizontally
2942    var groupCount = this.cols + 1 - colSpan;
2943    // for each group potential horizontal position
2944    for ( var i = 0; i < groupCount; i++ ) {
2945      colGroup[i] = this._getColGroupY( i, colSpan );
2946    }
2947    return colGroup;
2948  };
2949
2950  proto._getColGroupY = function( col, colSpan ) {
2951    if ( colSpan < 2 ) {
2952      return this.colYs[ col ];
2953    }
2954    // make an array of colY values for that one group
2955    var groupColYs = this.colYs.slice( col, col + colSpan );
2956    // and get the max value of the array
2957    return Math.max.apply( Math, groupColYs );
2958  };
2959
2960  // get column position based on horizontal index. #873
2961  proto._getHorizontalColPosition = function( colSpan, item ) {
2962    var col = this.horizontalColIndex % this.cols;
2963    var isOver = colSpan > 1 && col + colSpan > this.cols;
2964    // shift to next row if item can't fit on current row
2965    col = isOver ? 0 : col;
2966    // don't let zero-size items take up space
2967    var hasSize = item.size.outerWidth && item.size.outerHeight;
2968    this.horizontalColIndex = hasSize ? col + colSpan : this.horizontalColIndex;
2969
2970    return {
2971      col: col,
2972      y: this._getColGroupY( col, colSpan ),
2973    };
2974  };
2975
2976  proto._manageStamp = function( stamp ) {
2977    var stampSize = getSize( stamp );
2978    var offset = this._getElementOffset( stamp );
2979    // get the columns that this stamp affects
2980    var isOriginLeft = this._getOption('originLeft');
2981    var firstX = isOriginLeft ? offset.left : offset.right;
2982    var lastX = firstX + stampSize.outerWidth;
2983    var firstCol = Math.floor( firstX / this.columnWidth );
2984    firstCol = Math.max( 0, firstCol );
2985    var lastCol = Math.floor( lastX / this.columnWidth );
2986    // lastCol should not go over if multiple of columnWidth #425
2987    lastCol -= lastX % this.columnWidth ? 0 : 1;
2988    lastCol = Math.min( this.cols - 1, lastCol );
2989    // set colYs to bottom of the stamp
2990
2991    var isOriginTop = this._getOption('originTop');
2992    var stampMaxY = ( isOriginTop ? offset.top : offset.bottom ) +
2993      stampSize.outerHeight;
2994    for ( var i = firstCol; i <= lastCol; i++ ) {
2995      this.colYs[i] = Math.max( stampMaxY, this.colYs[i] );
2996    }
2997  };
2998
2999  proto._getContainerSize = function() {
3000    this.maxY = Math.max.apply( Math, this.colYs );
3001    var size = {
3002      height: this.maxY
3003    };
3004
3005    if ( this._getOption('fitWidth') ) {
3006      size.width = this._getContainerFitWidth();
3007    }
3008
3009    return size;
3010  };
3011
3012  proto._getContainerFitWidth = function() {
3013    var unusedCols = 0;
3014    // count unused columns
3015    var i = this.cols;
3016    while ( --i ) {
3017      if ( this.colYs[i] !== 0 ) {
3018        break;
3019      }
3020      unusedCols++;
3021    }
3022    // fit container to columns that have been used
3023    return ( this.cols - unusedCols ) * this.columnWidth - this.gutter;
3024  };
3025
3026  proto.needsResizeLayout = function() {
3027    var previousWidth = this.containerWidth;
3028    this.getContainerWidth();
3029    return previousWidth != this.containerWidth;
3030  };
3031
3032  return Masonry;
3033
3034}));
3035
3036/*!
3037 * Masonry layout mode
3038 * sub-classes Masonry
3039 * https://masonry.desandro.com
3040 */
3041
3042( function( window, factory ) {
3043  // universal module definition
3044  /* jshint strict: false */ /*globals define, module, require */
3045  if ( typeof define == 'function' && define.amd ) {
3046    // AMD
3047    define( 'isotope-layout/js/layout-modes/masonry',[
3048        '../layout-mode',
3049        'masonry-layout/masonry'
3050      ],
3051      factory );
3052  } else if ( typeof module == 'object' && module.exports ) {
3053    // CommonJS
3054    module.exports = factory(
3055      require('../layout-mode'),
3056      require('masonry-layout')
3057    );
3058  } else {
3059    // browser global
3060    factory(
3061      window.Isotope.LayoutMode,
3062      window.Masonry
3063    );
3064  }
3065
3066}( window, function factory( LayoutMode, Masonry ) {
3067'use strict';
3068
3069// -------------------------- masonryDefinition -------------------------- //
3070
3071  // create an Outlayer layout class
3072  var MasonryMode = LayoutMode.create('masonry');
3073
3074  var proto = MasonryMode.prototype;
3075
3076  var keepModeMethods = {
3077    _getElementOffset: true,
3078    layout: true,
3079    _getMeasurement: true
3080  };
3081
3082  // inherit Masonry prototype
3083  for ( var method in Masonry.prototype ) {
3084    // do not inherit mode methods
3085    if ( !keepModeMethods[ method ] ) {
3086      proto[ method ] = Masonry.prototype[ method ];
3087    }
3088  }
3089
3090  var measureColumns = proto.measureColumns;
3091  proto.measureColumns = function() {
3092    // set items, used if measuring first item
3093    this.items = this.isotope.filteredItems;
3094    measureColumns.call( this );
3095  };
3096
3097  // point to mode options for fitWidth
3098  var _getOption = proto._getOption;
3099  proto._getOption = function( option ) {
3100    if ( option == 'fitWidth' ) {
3101      return this.options.isFitWidth !== undefined ?
3102        this.options.isFitWidth : this.options.fitWidth;
3103    }
3104    return _getOption.apply( this.isotope, arguments );
3105  };
3106
3107  return MasonryMode;
3108
3109}));
3110
3111/**
3112 * fitRows layout mode
3113 */
3114
3115( function( window, factory ) {
3116  // universal module definition
3117  /* jshint strict: false */ /*globals define, module, require */
3118  if ( typeof define == 'function' && define.amd ) {
3119    // AMD
3120    define( 'isotope-layout/js/layout-modes/fit-rows',[
3121        '../layout-mode'
3122      ],
3123      factory );
3124  } else if ( typeof exports == 'object' ) {
3125    // CommonJS
3126    module.exports = factory(
3127      require('../layout-mode')
3128    );
3129  } else {
3130    // browser global
3131    factory(
3132      window.Isotope.LayoutMode
3133    );
3134  }
3135
3136}( window, function factory( LayoutMode ) {
3137'use strict';
3138
3139var FitRows = LayoutMode.create('fitRows');
3140
3141var proto = FitRows.prototype;
3142
3143proto._resetLayout = function() {
3144  this.x = 0;
3145  this.y = 0;
3146  this.maxY = 0;
3147  this._getMeasurement( 'gutter', 'outerWidth' );
3148};
3149
3150proto._getItemLayoutPosition = function( item ) {
3151  item.getSize();
3152
3153  var itemWidth = item.size.outerWidth + this.gutter;
3154  // if this element cannot fit in the current row
3155  var containerWidth = this.isotope.size.innerWidth + this.gutter;
3156  if ( this.x !== 0 && itemWidth + this.x > containerWidth ) {
3157    this.x = 0;
3158    this.y = this.maxY;
3159  }
3160
3161  var position = {
3162    x: this.x,
3163    y: this.y
3164  };
3165
3166  this.maxY = Math.max( this.maxY, this.y + item.size.outerHeight );
3167  this.x += itemWidth;
3168
3169  return position;
3170};
3171
3172proto._getContainerSize = function() {
3173  return { height: this.maxY };
3174};
3175
3176return FitRows;
3177
3178}));
3179
3180/**
3181 * vertical layout mode
3182 */
3183
3184( function( window, factory ) {
3185  // universal module definition
3186  /* jshint strict: false */ /*globals define, module, require */
3187  if ( typeof define == 'function' && define.amd ) {
3188    // AMD
3189    define( 'isotope-layout/js/layout-modes/vertical',[
3190        '../layout-mode'
3191      ],
3192      factory );
3193  } else if ( typeof module == 'object' && module.exports ) {
3194    // CommonJS
3195    module.exports = factory(
3196      require('../layout-mode')
3197    );
3198  } else {
3199    // browser global
3200    factory(
3201      window.Isotope.LayoutMode
3202    );
3203  }
3204
3205}( window, function factory( LayoutMode ) {
3206'use strict';
3207
3208var Vertical = LayoutMode.create( 'vertical', {
3209  horizontalAlignment: 0
3210});
3211
3212var proto = Vertical.prototype;
3213
3214proto._resetLayout = function() {
3215  this.y = 0;
3216};
3217
3218proto._getItemLayoutPosition = function( item ) {
3219  item.getSize();
3220  var x = ( this.isotope.size.innerWidth - item.size.outerWidth ) *
3221    this.options.horizontalAlignment;
3222  var y = this.y;
3223  this.y += item.size.outerHeight;
3224  return { x: x, y: y };
3225};
3226
3227proto._getContainerSize = function() {
3228  return { height: this.y };
3229};
3230
3231return Vertical;
3232
3233}));
3234
3235/*!
3236 * Isotope v3.0.6
3237 *
3238 * Licensed GPLv3 for open source use
3239 * or Isotope Commercial License for commercial use
3240 *
3241 * https://isotope.metafizzy.co
3242 * Copyright 2010-2018 Metafizzy
3243 */
3244
3245( function( window, factory ) {
3246  // universal module definition
3247  /* jshint strict: false */ /*globals define, module, require */
3248  if ( typeof define == 'function' && define.amd ) {
3249    // AMD
3250    define( [
3251        'outlayer/outlayer',
3252        'get-size/get-size',
3253        'desandro-matches-selector/matches-selector',
3254        'fizzy-ui-utils/utils',
3255        'isotope-layout/js/item',
3256        'isotope-layout/js/layout-mode',
3257        // include default layout modes
3258        'isotope-layout/js/layout-modes/masonry',
3259        'isotope-layout/js/layout-modes/fit-rows',
3260        'isotope-layout/js/layout-modes/vertical'
3261      ],
3262      function( Outlayer, getSize, matchesSelector, utils, Item, LayoutMode ) {
3263        return factory( window, Outlayer, getSize, matchesSelector, utils, Item, LayoutMode );
3264      });
3265  } else if ( typeof module == 'object' && module.exports ) {
3266    // CommonJS
3267    module.exports = factory(
3268      window,
3269      require('outlayer'),
3270      require('get-size'),
3271      require('desandro-matches-selector'),
3272      require('fizzy-ui-utils'),
3273      require('isotope-layout/js/item'),
3274      require('isotope-layout/js/layout-mode'),
3275      // include default layout modes
3276      require('isotope-layout/js/layout-modes/masonry'),
3277      require('isotope-layout/js/layout-modes/fit-rows'),
3278      require('isotope-layout/js/layout-modes/vertical')
3279    );
3280  } else {
3281    // browser global
3282    window.Isotope = factory(
3283      window,
3284      window.Outlayer,
3285      window.getSize,
3286      window.matchesSelector,
3287      window.fizzyUIUtils,
3288      window.Isotope.Item,
3289      window.Isotope.LayoutMode
3290    );
3291  }
3292
3293}( window, function factory( window, Outlayer, getSize, matchesSelector, utils,
3294  Item, LayoutMode ) {
3295
3296
3297
3298// -------------------------- vars -------------------------- //
3299
3300var jQuery = window.jQuery;
3301
3302// -------------------------- helpers -------------------------- //
3303
3304var trim = String.prototype.trim ?
3305  function( str ) {
3306    return str.trim();
3307  } :
3308  function( str ) {
3309    return str.replace( /^\s+|\s+$/g, '' );
3310  };
3311
3312// -------------------------- isotopeDefinition -------------------------- //
3313
3314  // create an Outlayer layout class
3315  var Isotope = Outlayer.create( 'isotope', {
3316    layoutMode: 'masonry',
3317    isJQueryFiltering: true,
3318    sortAscending: true
3319  });
3320
3321  Isotope.Item = Item;
3322  Isotope.LayoutMode = LayoutMode;
3323
3324  var proto = Isotope.prototype;
3325
3326  proto._create = function() {
3327    this.itemGUID = 0;
3328    // functions that sort items
3329    this._sorters = {};
3330    this._getSorters();
3331    // call super
3332    Outlayer.prototype._create.call( this );
3333
3334    // create layout modes
3335    this.modes = {};
3336    // start filteredItems with all items
3337    this.filteredItems = this.items;
3338    // keep of track of sortBys
3339    this.sortHistory = [ 'original-order' ];
3340    // create from registered layout modes
3341    for ( var name in LayoutMode.modes ) {
3342      this._initLayoutMode( name );
3343    }
3344  };
3345
3346  proto.reloadItems = function() {
3347    // reset item ID counter
3348    this.itemGUID = 0;
3349    // call super
3350    Outlayer.prototype.reloadItems.call( this );
3351  };
3352
3353  proto._itemize = function() {
3354    var items = Outlayer.prototype._itemize.apply( this, arguments );
3355    // assign ID for original-order
3356    for ( var i=0; i < items.length; i++ ) {
3357      var item = items[i];
3358      item.id = this.itemGUID++;
3359    }
3360    this._updateItemsSortData( items );
3361    return items;
3362  };
3363
3364
3365  // -------------------------- layout -------------------------- //
3366
3367  proto._initLayoutMode = function( name ) {
3368    var Mode = LayoutMode.modes[ name ];
3369    // set mode options
3370    // HACK extend initial options, back-fill in default options
3371    var initialOpts = this.options[ name ] || {};
3372    this.options[ name ] = Mode.options ?
3373      utils.extend( Mode.options, initialOpts ) : initialOpts;
3374    // init layout mode instance
3375    this.modes[ name ] = new Mode( this );
3376  };
3377
3378
3379  proto.layout = function() {
3380    // if first time doing layout, do all magic
3381    if ( !this._isLayoutInited && this._getOption('initLayout') ) {
3382      this.arrange();
3383      return;
3384    }
3385    this._layout();
3386  };
3387
3388  // private method to be used in layout() & magic()
3389  proto._layout = function() {
3390    // don't animate first layout
3391    var isInstant = this._getIsInstant();
3392    // layout flow
3393    this._resetLayout();
3394    this._manageStamps();
3395    this.layoutItems( this.filteredItems, isInstant );
3396
3397    // flag for initalized
3398    this._isLayoutInited = true;
3399  };
3400
3401  // filter + sort + layout
3402  proto.arrange = function( opts ) {
3403    // set any options pass
3404    this.option( opts );
3405    this._getIsInstant();
3406    // filter, sort, and layout
3407
3408    // filter
3409    var filtered = this._filter( this.items );
3410    this.filteredItems = filtered.matches;
3411
3412    this._bindArrangeComplete();
3413
3414    if ( this._isInstant ) {
3415      this._noTransition( this._hideReveal, [ filtered ] );
3416    } else {
3417      this._hideReveal( filtered );
3418    }
3419
3420    this._sort();
3421    this._layout();
3422  };
3423  // alias to _init for main plugin method
3424  proto._init = proto.arrange;
3425
3426  proto._hideReveal = function( filtered ) {
3427    this.reveal( filtered.needReveal );
3428    this.hide( filtered.needHide );
3429  };
3430
3431  // HACK
3432  // Don't animate/transition first layout
3433  // Or don't animate/transition other layouts
3434  proto._getIsInstant = function() {
3435    var isLayoutInstant = this._getOption('layoutInstant');
3436    var isInstant = isLayoutInstant !== undefined ? isLayoutInstant :
3437      !this._isLayoutInited;
3438    this._isInstant = isInstant;
3439    return isInstant;
3440  };
3441
3442  // listen for layoutComplete, hideComplete and revealComplete
3443  // to trigger arrangeComplete
3444  proto._bindArrangeComplete = function() {
3445    // listen for 3 events to trigger arrangeComplete
3446    var isLayoutComplete, isHideComplete, isRevealComplete;
3447    var _this = this;
3448    function arrangeParallelCallback() {
3449      if ( isLayoutComplete && isHideComplete && isRevealComplete ) {
3450        _this.dispatchEvent( 'arrangeComplete', null, [ _this.filteredItems ] );
3451      }
3452    }
3453    this.once( 'layoutComplete', function() {
3454      isLayoutComplete = true;
3455      arrangeParallelCallback();
3456    });
3457    this.once( 'hideComplete', function() {
3458      isHideComplete = true;
3459      arrangeParallelCallback();
3460    });
3461    this.once( 'revealComplete', function() {
3462      isRevealComplete = true;
3463      arrangeParallelCallback();
3464    });
3465  };
3466
3467  // -------------------------- filter -------------------------- //
3468
3469  proto._filter = function( items ) {
3470    var filter = this.options.filter;
3471    filter = filter || '*';
3472    var matches = [];
3473    var hiddenMatched = [];
3474    var visibleUnmatched = [];
3475
3476    var test = this._getFilterTest( filter );
3477
3478    // test each item
3479    for ( var i=0; i < items.length; i++ ) {
3480      var item = items[i];
3481      if ( item.isIgnored ) {
3482        continue;
3483      }
3484      // add item to either matched or unmatched group
3485      var isMatched = test( item );
3486      // item.isFilterMatched = isMatched;
3487      // add to matches if its a match
3488      if ( isMatched ) {
3489        matches.push( item );
3490      }
3491      // add to additional group if item needs to be hidden or revealed
3492      if ( isMatched && item.isHidden ) {
3493        hiddenMatched.push( item );
3494      } else if ( !isMatched && !item.isHidden ) {
3495        visibleUnmatched.push( item );
3496      }
3497    }
3498
3499    // return collections of items to be manipulated
3500    return {
3501      matches: matches,
3502      needReveal: hiddenMatched,
3503      needHide: visibleUnmatched
3504    };
3505  };
3506
3507  // get a jQuery, function, or a matchesSelector test given the filter
3508  proto._getFilterTest = function( filter ) {
3509    if ( jQuery && this.options.isJQueryFiltering ) {
3510      // use jQuery
3511      return function( item ) {
3512        return jQuery( item.element ).is( filter );
3513      };
3514    }
3515    if ( typeof filter == 'function' ) {
3516      // use filter as function
3517      return function( item ) {
3518        return filter( item.element );
3519      };
3520    }
3521    // default, use filter as selector string
3522    return function( item ) {
3523      return matchesSelector( item.element, filter );
3524    };
3525  };
3526
3527  // -------------------------- sorting -------------------------- //
3528
3529  /**
3530   * @params {Array} elems
3531   * @public
3532   */
3533  proto.updateSortData = function( elems ) {
3534    // get items
3535    var items;
3536    if ( elems ) {
3537      elems = utils.makeArray( elems );
3538      items = this.getItems( elems );
3539    } else {
3540      // update all items if no elems provided
3541      items = this.items;
3542    }
3543
3544    this._getSorters();
3545    this._updateItemsSortData( items );
3546  };
3547
3548  proto._getSorters = function() {
3549    var getSortData = this.options.getSortData;
3550    for ( var key in getSortData ) {
3551      var sorter = getSortData[ key ];
3552      this._sorters[ key ] = mungeSorter( sorter );
3553    }
3554  };
3555
3556  /**
3557   * @params {Array} items - of Isotope.Items
3558   * @private
3559   */
3560  proto._updateItemsSortData = function( items ) {
3561    // do not update if no items
3562    var len = items && items.length;
3563
3564    for ( var i=0; len && i < len; i++ ) {
3565      var item = items[i];
3566      item.updateSortData();
3567    }
3568  };
3569
3570  // ----- munge sorter ----- //
3571
3572  // encapsulate this, as we just need mungeSorter
3573  // other functions in here are just for munging
3574  var mungeSorter = ( function() {
3575    // add a magic layer to sorters for convienent shorthands
3576    // `.foo-bar` will use the text of .foo-bar querySelector
3577    // `[foo-bar]` will use attribute
3578    // you can also add parser
3579    // `.foo-bar parseInt` will parse that as a number
3580    function mungeSorter( sorter ) {
3581      // if not a string, return function or whatever it is
3582      if ( typeof sorter != 'string' ) {
3583        return sorter;
3584      }
3585      // parse the sorter string
3586      var args = trim( sorter ).split(' ');
3587      var query = args[0];
3588      // check if query looks like [an-attribute]
3589      var attrMatch = query.match( /^\[(.+)\]$/ );
3590      var attr = attrMatch && attrMatch[1];
3591      var getValue = getValueGetter( attr, query );
3592      // use second argument as a parser
3593      var parser = Isotope.sortDataParsers[ args[1] ];
3594      // parse the value, if there was a parser
3595      sorter = parser ? function( elem ) {
3596        return elem && parser( getValue( elem ) );
3597      } :
3598      // otherwise just return value
3599      function( elem ) {
3600        return elem && getValue( elem );
3601      };
3602
3603      return sorter;
3604    }
3605
3606    // get an attribute getter, or get text of the querySelector
3607    function getValueGetter( attr, query ) {
3608      // if query looks like [foo-bar], get attribute
3609      if ( attr ) {
3610        return function getAttribute( elem ) {
3611          return elem.getAttribute( attr );
3612        };
3613      }
3614
3615      // otherwise, assume its a querySelector, and get its text
3616      return function getChildText( elem ) {
3617        var child = elem.querySelector( query );
3618        return child && child.textContent;
3619      };
3620    }
3621
3622    return mungeSorter;
3623  })();
3624
3625  // parsers used in getSortData shortcut strings
3626  Isotope.sortDataParsers = {
3627    'parseInt': function( val ) {
3628      return parseInt( val, 10 );
3629    },
3630    'parseFloat': function( val ) {
3631      return parseFloat( val );
3632    }
3633  };
3634
3635  // ----- sort method ----- //
3636
3637  // sort filteredItem order
3638  proto._sort = function() {
3639    if ( !this.options.sortBy ) {
3640      return;
3641    }
3642    // keep track of sortBy History
3643    var sortBys = utils.makeArray( this.options.sortBy );
3644    if ( !this._getIsSameSortBy( sortBys ) ) {
3645      // concat all sortBy and sortHistory, add to front, oldest goes in last
3646      this.sortHistory = sortBys.concat( this.sortHistory );
3647    }
3648    // sort magic
3649    var itemSorter = getItemSorter( this.sortHistory, this.options.sortAscending );
3650    this.filteredItems.sort( itemSorter );
3651  };
3652
3653  // check if sortBys is same as start of sortHistory
3654  proto._getIsSameSortBy = function( sortBys ) {
3655    for ( var i=0; i < sortBys.length; i++ ) {
3656      if ( sortBys[i] != this.sortHistory[i] ) {
3657        return false;
3658      }
3659    }
3660    return true;
3661  };
3662
3663  // returns a function used for sorting
3664  function getItemSorter( sortBys, sortAsc ) {
3665    return function sorter( itemA, itemB ) {
3666      // cycle through all sortKeys
3667      for ( var i = 0; i < sortBys.length; i++ ) {
3668        var sortBy = sortBys[i];
3669        var a = itemA.sortData[ sortBy ];
3670        var b = itemB.sortData[ sortBy ];
3671        if ( a > b || a < b ) {
3672          // if sortAsc is an object, use the value given the sortBy key
3673          var isAscending = sortAsc[ sortBy ] !== undefined ? sortAsc[ sortBy ] : sortAsc;
3674          var direction = isAscending ? 1 : -1;
3675          return ( a > b ? 1 : -1 ) * direction;
3676        }
3677      }
3678      return 0;
3679    };
3680  }
3681
3682  // -------------------------- methods -------------------------- //
3683
3684  // get layout mode
3685  proto._mode = function() {
3686    var layoutMode = this.options.layoutMode;
3687    var mode = this.modes[ layoutMode ];
3688    if ( !mode ) {
3689      // TODO console.error
3690      throw new Error( 'No layout mode: ' + layoutMode );
3691    }
3692    // HACK sync mode's options
3693    // any options set after init for layout mode need to be synced
3694    mode.options = this.options[ layoutMode ];
3695    return mode;
3696  };
3697
3698  proto._resetLayout = function() {
3699    // trigger original reset layout
3700    Outlayer.prototype._resetLayout.call( this );
3701    this._mode()._resetLayout();
3702  };
3703
3704  proto._getItemLayoutPosition = function( item  ) {
3705    return this._mode()._getItemLayoutPosition( item );
3706  };
3707
3708  proto._manageStamp = function( stamp ) {
3709    this._mode()._manageStamp( stamp );
3710  };
3711
3712  proto._getContainerSize = function() {
3713    return this._mode()._getContainerSize();
3714  };
3715
3716  proto.needsResizeLayout = function() {
3717    return this._mode().needsResizeLayout();
3718  };
3719
3720  // -------------------------- adding & removing -------------------------- //
3721
3722  // HEADS UP overwrites default Outlayer appended
3723  proto.appended = function( elems ) {
3724    var items = this.addItems( elems );
3725    if ( !items.length ) {
3726      return;
3727    }
3728    // filter, layout, reveal new items
3729    var filteredItems = this._filterRevealAdded( items );
3730    // add to filteredItems
3731    this.filteredItems = this.filteredItems.concat( filteredItems );
3732  };
3733
3734  // HEADS UP overwrites default Outlayer prepended
3735  proto.prepended = function( elems ) {
3736    var items = this._itemize( elems );
3737    if ( !items.length ) {
3738      return;
3739    }
3740    // start new layout
3741    this._resetLayout();
3742    this._manageStamps();
3743    // filter, layout, reveal new items
3744    var filteredItems = this._filterRevealAdded( items );
3745    // layout previous items
3746    this.layoutItems( this.filteredItems );
3747    // add to items and filteredItems
3748    this.filteredItems = filteredItems.concat( this.filteredItems );
3749    this.items = items.concat( this.items );
3750  };
3751
3752  proto._filterRevealAdded = function( items ) {
3753    var filtered = this._filter( items );
3754    this.hide( filtered.needHide );
3755    // reveal all new items
3756    this.reveal( filtered.matches );
3757    // layout new items, no transition
3758    this.layoutItems( filtered.matches, true );
3759    return filtered.matches;
3760  };
3761
3762  /**
3763   * Filter, sort, and layout newly-appended item elements
3764   * @param {Array or NodeList or Element} elems
3765   */
3766  proto.insert = function( elems ) {
3767    var items = this.addItems( elems );
3768    if ( !items.length ) {
3769      return;
3770    }
3771    // append item elements
3772    var i, item;
3773    var len = items.length;
3774    for ( i=0; i < len; i++ ) {
3775      item = items[i];
3776      this.element.appendChild( item.element );
3777    }
3778    // filter new stuff
3779    var filteredInsertItems = this._filter( items ).matches;
3780    // set flag
3781    for ( i=0; i < len; i++ ) {
3782      items[i].isLayoutInstant = true;
3783    }
3784    this.arrange();
3785    // reset flag
3786    for ( i=0; i < len; i++ ) {
3787      delete items[i].isLayoutInstant;
3788    }
3789    this.reveal( filteredInsertItems );
3790  };
3791
3792  var _remove = proto.remove;
3793  proto.remove = function( elems ) {
3794    elems = utils.makeArray( elems );
3795    var removeItems = this.getItems( elems );
3796    // do regular thing
3797    _remove.call( this, elems );
3798    // bail if no items to remove
3799    var len = removeItems && removeItems.length;
3800    // remove elems from filteredItems
3801    for ( var i=0; len && i < len; i++ ) {
3802      var item = removeItems[i];
3803      // remove item from collection
3804      utils.removeFrom( this.filteredItems, item );
3805    }
3806  };
3807
3808  proto.shuffle = function() {
3809    // update random sortData
3810    for ( var i=0; i < this.items.length; i++ ) {
3811      var item = this.items[i];
3812      item.sortData.random = Math.random();
3813    }
3814    this.options.sortBy = 'random';
3815    this._sort();
3816    this._layout();
3817  };
3818
3819  /**
3820   * trigger fn without transition
3821   * kind of hacky to have this in the first place
3822   * @param {Function} fn
3823   * @param {Array} args
3824   * @returns ret
3825   * @private
3826   */
3827  proto._noTransition = function( fn, args ) {
3828    // save transitionDuration before disabling
3829    var transitionDuration = this.options.transitionDuration;
3830    // disable transition
3831    this.options.transitionDuration = 0;
3832    // do it
3833    var returnValue = fn.apply( this, args );
3834    // re-enable transition for reveal
3835    this.options.transitionDuration = transitionDuration;
3836    return returnValue;
3837  };
3838
3839  // ----- helper methods ----- //
3840
3841  /**
3842   * getter method for getting filtered item elements
3843   * @returns {Array} elems - collection of item elements
3844   */
3845  proto.getFilteredItemElements = function() {
3846    return this.filteredItems.map( function( item ) {
3847      return item.element;
3848    });
3849  };
3850
3851  // -----  ----- //
3852
3853  return Isotope;
3854
3855}));
3856