isotope.pkgd.js

/*!
 * Isotope PACKAGED v3.0.6
 *
 * Licensed GPLv3 for open source use
 * or Isotope Commercial License for commercial use
 *
 * https://isotope.metafizzy.co
 * Copyright 2010-2018 Metafizzy
 */

/**
 * Bridget makes jQuery widgets
 * v2.0.1
 * MIT license
 */

/* jshint browser: true, strict: true, undef: true, unused: true */

( function( window, factory ) {
    // universal module definition
    /*jshint strict: false */ /* globals define, module, require */
    if ( typeof define == 'function' && define.amd ) {
      // AMD
      define( 'jquery-bridget/jquery-bridget',[ 'jquery' ], function( jQuery ) {
        return factory( window, jQuery );
      });
    } else if ( typeof module == 'object' && module.exports ) {
      // CommonJS
      module.exports = factory(
        window,
        require('jquery')
      );
    } else {
      // browser global
      window.jQueryBridget = factory(
        window,
        window.jQuery
      );
    }
  
  }( window, function factory( window, jQuery ) {
  'use strict';
  
  // ----- utils ----- //
  
  var arraySlice = Array.prototype.slice;
  
  // helper function for logging errors
  // $.error breaks jQuery chaining
  var console = window.console;
  var logError = typeof console == 'undefined' ? function() {} :
    function( message ) {
      console.error( message );
    };
  
  // ----- jQueryBridget ----- //
  
  function jQueryBridget( namespace, PluginClass, $ ) {
    $ = $ || jQuery || window.jQuery;
    if ( !$ ) {
      return;
    }
  
    // add option method -> $().plugin('option', {...})
    if ( !PluginClass.prototype.option ) {
      // option setter
      PluginClass.prototype.option = function( opts ) {
        // bail out if not an object
        if ( !$.isPlainObject( opts ) ){
          return;
        }
        this.options = $.extend( true, this.options, opts );
      };
    }
  
    // make jQuery plugin
    $.fn[ namespace ] = function( arg0 /*, arg1 */ ) {
      if ( typeof arg0 == 'string' ) {
        // method call $().plugin( 'methodName', { options } )
        // shift arguments by 1
        var args = arraySlice.call( arguments, 1 );
        return methodCall( this, arg0, args );
      }
      // just $().plugin({ options })
      plainCall( this, arg0 );
      return this;
    };
  
    // $().plugin('methodName')
    function methodCall( $elems, methodName, args ) {
      var returnValue;
      var pluginMethodStr = '$().' + namespace + '("' + methodName + '")';
  
      $elems.each( function( i, elem ) {
        // get instance
        var instance = $.data( elem, namespace );
        if ( !instance ) {
          logError( namespace + ' not initialized. Cannot call methods, i.e. ' +
            pluginMethodStr );
          return;
        }
  
        var method = instance[ methodName ];
        if ( !method || methodName.charAt(0) == '_' ) {
          logError( pluginMethodStr + ' is not a valid method' );
          return;
        }
  
        // apply method, get return value
        var value = method.apply( instance, args );
        // set return value if value is returned, use only first value
        returnValue = returnValue === undefined ? value : returnValue;
      });
  
      return returnValue !== undefined ? returnValue : $elems;
    }
  
    function plainCall( $elems, options ) {
      $elems.each( function( i, elem ) {
        var instance = $.data( elem, namespace );
        if ( instance ) {
          // set options & init
          instance.option( options );
          instance._init();
        } else {
          // initialize new instance
          instance = new PluginClass( elem, options );
          $.data( elem, namespace, instance );
        }
      });
    }
  
    updateJQuery( $ );
  
  }
  
  // ----- updateJQuery ----- //
  
  // set $.bridget for v1 backwards compatibility
  function updateJQuery( $ ) {
    if ( !$ || ( $ && $.bridget ) ) {
      return;
    }
    $.bridget = jQueryBridget;
  }
  
  updateJQuery( jQuery || window.jQuery );
  
  // -----  ----- //
  
  return jQueryBridget;
  
  }));
  
  /**
   * EvEmitter v1.1.0
   * Lil' event emitter
   * MIT License
   */
  
  /* jshint unused: true, undef: true, strict: true */
  
  ( function( global, factory ) {
    // universal module definition
    /* jshint strict: false */ /* globals define, module, window */
    if ( typeof define == 'function' && define.amd ) {
      // AMD - RequireJS
      define( 'ev-emitter/ev-emitter',factory );
    } else if ( typeof module == 'object' && module.exports ) {
      // CommonJS - Browserify, Webpack
      module.exports = factory();
    } else {
      // Browser globals
      global.EvEmitter = factory();
    }
  
  }( typeof window != 'undefined' ? window : this, function() {
  
  
  
  function EvEmitter() {}
  
  var proto = EvEmitter.prototype;
  
  proto.on = function( eventName, listener ) {
    if ( !eventName || !listener ) {
      return;
    }
    // set events hash
    var events = this._events = this._events || {};
    // set listeners array
    var listeners = events[ eventName ] = events[ eventName ] || [];
    // only add once
    if ( listeners.indexOf( listener ) == -1 ) {
      listeners.push( listener );
    }
  
    return this;
  };
  
  proto.once = function( eventName, listener ) {
    if ( !eventName || !listener ) {
      return;
    }
    // add event
    this.on( eventName, listener );
    // set once flag
    // set onceEvents hash
    var onceEvents = this._onceEvents = this._onceEvents || {};
    // set onceListeners object
    var onceListeners = onceEvents[ eventName ] = onceEvents[ eventName ] || {};
    // set flag
    onceListeners[ listener ] = true;
  
    return this;
  };
  
  proto.off = function( eventName, listener ) {
    var listeners = this._events && this._events[ eventName ];
    if ( !listeners || !listeners.length ) {
      return;
    }
    var index = listeners.indexOf( listener );
    if ( index != -1 ) {
      listeners.splice( index, 1 );
    }
  
    return this;
  };
  
  proto.emitEvent = function( eventName, args ) {
    var listeners = this._events && this._events[ eventName ];
    if ( !listeners || !listeners.length ) {
      return;
    }
    // copy over to avoid interference if .off() in listener
    listeners = listeners.slice(0);
    args = args || [];
    // once stuff
    var onceListeners = this._onceEvents && this._onceEvents[ eventName ];
  
    for ( var i=0; i < listeners.length; i++ ) {
      var listener = listeners[i]
      var isOnce = onceListeners && onceListeners[ listener ];
      if ( isOnce ) {
        // remove listener
        // remove before trigger to prevent recursion
        this.off( eventName, listener );
        // unset once flag
        delete onceListeners[ listener ];
      }
      // trigger listener
      listener.apply( this, args );
    }
  
    return this;
  };
  
  proto.allOff = function() {
    delete this._events;
    delete this._onceEvents;
  };
  
  return EvEmitter;
  
  }));
  
  /*!
   * getSize v2.0.3
   * measure size of elements
   * MIT license
   */
  
  /* jshint browser: true, strict: true, undef: true, unused: true */
  /* globals console: false */
  
  ( function( window, factory ) {
    /* jshint strict: false */ /* globals define, module */
    if ( typeof define == 'function' && define.amd ) {
      // AMD
      define( 'get-size/get-size',factory );
    } else if ( typeof module == 'object' && module.exports ) {
      // CommonJS
      module.exports = factory();
    } else {
      // browser global
      window.getSize = factory();
    }
  
  })( window, function factory() {
  'use strict';
  
  // -------------------------- helpers -------------------------- //
  
  // get a number from a string, not a percentage
  function getStyleSize( value ) {
    var num = parseFloat( value );
    // not a percent like '100%', and a number
    var isValid = value.indexOf('%') == -1 && !isNaN( num );
    return isValid && num;
  }
  
  function noop() {}
  
  var logError = typeof console == 'undefined' ? noop :
    function( message ) {
      console.error( message );
    };
  
  // -------------------------- measurements -------------------------- //
  
  var measurements = [
    'paddingLeft',
    'paddingRight',
    'paddingTop',
    'paddingBottom',
    'marginLeft',
    'marginRight',
    'marginTop',
    'marginBottom',
    'borderLeftWidth',
    'borderRightWidth',
    'borderTopWidth',
    'borderBottomWidth'
  ];
  
  var measurementsLength = measurements.length;
  
  function getZeroSize() {
    var size = {
      width: 0,
      height: 0,
      innerWidth: 0,
      innerHeight: 0,
      outerWidth: 0,
      outerHeight: 0
    };
    for ( var i=0; i < measurementsLength; i++ ) {
      var measurement = measurements[i];
      size[ measurement ] = 0;
    }
    return size;
  }
  
  // -------------------------- getStyle -------------------------- //
  
  /**
   * getStyle, get style of element, check for Firefox bug
   * https://bugzilla.mozilla.org/show_bug.cgi?id=548397
   */
  function getStyle( elem ) {
    var style = getComputedStyle( elem );
    if ( !style ) {
      logError( 'Style returned ' + style +
        '. Are you running this code in a hidden iframe on Firefox? ' +
        'See https://bit.ly/getsizebug1' );
    }
    return style;
  }
  
  // -------------------------- setup -------------------------- //
  
  var isSetup = false;
  
  var isBoxSizeOuter;
  
  /**
   * setup
   * check isBoxSizerOuter
   * do on first getSize() rather than on page load for Firefox bug
   */
  function setup() {
    // setup once
    if ( isSetup ) {
      return;
    }
    isSetup = true;
  
    // -------------------------- box sizing -------------------------- //
  
    /**
     * Chrome & Safari measure the outer-width on style.width on border-box elems
     * IE11 & Firefox<29 measures the inner-width
     */
    var div = document.createElement('div');
    div.style.width = '200px';
    div.style.padding = '1px 2px 3px 4px';
    div.style.borderStyle = 'solid';
    div.style.borderWidth = '1px 2px 3px 4px';
    div.style.boxSizing = 'border-box';
  
    var body = document.body || document.documentElement;
    body.appendChild( div );
    var style = getStyle( div );
    // round value for browser zoom. desandro/masonry#928
    isBoxSizeOuter = Math.round( getStyleSize( style.width ) ) == 200;
    getSize.isBoxSizeOuter = isBoxSizeOuter;
  
    body.removeChild( div );
  }
  
  // -------------------------- getSize -------------------------- //
  
  function getSize( elem ) {
    setup();
  
    // use querySeletor if elem is string
    if ( typeof elem == 'string' ) {
      elem = document.querySelector( elem );
    }
  
    // do not proceed on non-objects
    if ( !elem || typeof elem != 'object' || !elem.nodeType ) {
      return;
    }
  
    var style = getStyle( elem );
  
    // if hidden, everything is 0
    if ( style.display == 'none' ) {
      return getZeroSize();
    }
  
    var size = {};
    size.width = elem.offsetWidth;
    size.height = elem.offsetHeight;
  
    var isBorderBox = size.isBorderBox = style.boxSizing == 'border-box';
  
    // get all measurements
    for ( var i=0; i < measurementsLength; i++ ) {
      var measurement = measurements[i];
      var value = style[ measurement ];
      var num = parseFloat( value );
      // any 'auto', 'medium' value will be 0
      size[ measurement ] = !isNaN( num ) ? num : 0;
    }
  
    var paddingWidth = size.paddingLeft + size.paddingRight;
    var paddingHeight = size.paddingTop + size.paddingBottom;
    var marginWidth = size.marginLeft + size.marginRight;
    var marginHeight = size.marginTop + size.marginBottom;
    var borderWidth = size.borderLeftWidth + size.borderRightWidth;
    var borderHeight = size.borderTopWidth + size.borderBottomWidth;
  
    var isBorderBoxSizeOuter = isBorderBox && isBoxSizeOuter;
  
    // overwrite width and height if we can get it from style
    var styleWidth = getStyleSize( style.width );
    if ( styleWidth !== false ) {
      size.width = styleWidth +
        // add padding and border unless it's already including it
        ( isBorderBoxSizeOuter ? 0 : paddingWidth + borderWidth );
    }
  
    var styleHeight = getStyleSize( style.height );
    if ( styleHeight !== false ) {
      size.height = styleHeight +
        // add padding and border unless it's already including it
        ( isBorderBoxSizeOuter ? 0 : paddingHeight + borderHeight );
    }
  
    size.innerWidth = size.width - ( paddingWidth + borderWidth );
    size.innerHeight = size.height - ( paddingHeight + borderHeight );
  
    size.outerWidth = size.width + marginWidth;
    size.outerHeight = size.height + marginHeight;
  
    return size;
  }
  
  return getSize;
  
  });
  
  /**
   * matchesSelector v2.0.2
   * matchesSelector( element, '.selector' )
   * MIT license
   */
  
  /*jshint browser: true, strict: true, undef: true, unused: true */
  
  ( function( window, factory ) {
    /*global define: false, module: false */
    'use strict';
    // universal module definition
    if ( typeof define == 'function' && define.amd ) {
      // AMD
      define( 'desandro-matches-selector/matches-selector',factory );
    } else if ( typeof module == 'object' && module.exports ) {
      // CommonJS
      module.exports = factory();
    } else {
      // browser global
      window.matchesSelector = factory();
    }
  
  }( window, function factory() {
    'use strict';
  
    var matchesMethod = ( function() {
      var ElemProto = window.Element.prototype;
      // check for the standard method name first
      if ( ElemProto.matches ) {
        return 'matches';
      }
      // check un-prefixed
      if ( ElemProto.matchesSelector ) {
        return 'matchesSelector';
      }
      // check vendor prefixes
      var prefixes = [ 'webkit', 'moz', 'ms', 'o' ];
  
      for ( var i=0; i < prefixes.length; i++ ) {
        var prefix = prefixes[i];
        var method = prefix + 'MatchesSelector';
        if ( ElemProto[ method ] ) {
          return method;
        }
      }
    })();
  
    return function matchesSelector( elem, selector ) {
      return elem[ matchesMethod ]( selector );
    };
  
  }));
  
  /**
   * Fizzy UI utils v2.0.7
   * MIT license
   */
  
  /*jshint browser: true, undef: true, unused: true, strict: true */
  
  ( function( window, factory ) {
    // universal module definition
    /*jshint strict: false */ /*globals define, module, require */
  
    if ( typeof define == 'function' && define.amd ) {
      // AMD
      define( 'fizzy-ui-utils/utils',[
        'desandro-matches-selector/matches-selector'
      ], function( matchesSelector ) {
        return factory( window, matchesSelector );
      });
    } else if ( typeof module == 'object' && module.exports ) {
      // CommonJS
      module.exports = factory(
        window,
        require('desandro-matches-selector')
      );
    } else {
      // browser global
      window.fizzyUIUtils = factory(
        window,
        window.matchesSelector
      );
    }
  
  }( window, function factory( window, matchesSelector ) {
  
  
  
  var utils = {};
  
  // ----- extend ----- //
  
  // extends objects
  utils.extend = function( a, b ) {
    for ( var prop in b ) {
      a[ prop ] = b[ prop ];
    }
    return a;
  };
  
  // ----- modulo ----- //
  
  utils.modulo = function( num, div ) {
    return ( ( num % div ) + div ) % div;
  };
  
  // ----- makeArray ----- //
  
  var arraySlice = Array.prototype.slice;
  
  // turn element or nodeList into an array
  utils.makeArray = function( obj ) {
    if ( Array.isArray( obj ) ) {
      // use object if already an array
      return obj;
    }
    // return empty array if undefined or null. #6
    if ( obj === null || obj === undefined ) {
      return [];
    }
  
    var isArrayLike = typeof obj == 'object' && typeof obj.length == 'number';
    if ( isArrayLike ) {
      // convert nodeList to array
      return arraySlice.call( obj );
    }
  
    // array of single index
    return [ obj ];
  };
  
  // ----- removeFrom ----- //
  
  utils.removeFrom = function( ary, obj ) {
    var index = ary.indexOf( obj );
    if ( index != -1 ) {
      ary.splice( index, 1 );
    }
  };
  
  // ----- getParent ----- //
  
  utils.getParent = function( elem, selector ) {
    while ( elem.parentNode && elem != document.body ) {
      elem = elem.parentNode;
      if ( matchesSelector( elem, selector ) ) {
        return elem;
      }
    }
  };
  
  // ----- getQueryElement ----- //
  
  // use element as selector string
  utils.getQueryElement = function( elem ) {
    if ( typeof elem == 'string' ) {
      return document.querySelector( elem );
    }
    return elem;
  };
  
  // ----- handleEvent ----- //
  
  // enable .ontype to trigger from .addEventListener( elem, 'type' )
  utils.handleEvent = function( event ) {
    var method = 'on' + event.type;
    if ( this[ method ] ) {
      this[ method ]( event );
    }
  };
  
  // ----- filterFindElements ----- //
  
  utils.filterFindElements = function( elems, selector ) {
    // make array of elems
    elems = utils.makeArray( elems );
    var ffElems = [];
  
    elems.forEach( function( elem ) {
      // check that elem is an actual element
      if ( !( elem instanceof HTMLElement ) ) {
        return;
      }
      // add elem if no selector
      if ( !selector ) {
        ffElems.push( elem );
        return;
      }
      // filter & find items if we have a selector
      // filter
      if ( matchesSelector( elem, selector ) ) {
        ffElems.push( elem );
      }
      // find children
      var childElems = elem.querySelectorAll( selector );
      // concat childElems to filterFound array
      for ( var i=0; i < childElems.length; i++ ) {
        ffElems.push( childElems[i] );
      }
    });
  
    return ffElems;
  };
  
  // ----- debounceMethod ----- //
  
  utils.debounceMethod = function( _class, methodName, threshold ) {
    threshold = threshold || 100;
    // original method
    var method = _class.prototype[ methodName ];
    var timeoutName = methodName + 'Timeout';
  
    _class.prototype[ methodName ] = function() {
      var timeout = this[ timeoutName ];
      clearTimeout( timeout );
  
      var args = arguments;
      var _this = this;
      this[ timeoutName ] = setTimeout( function() {
        method.apply( _this, args );
        delete _this[ timeoutName ];
      }, threshold );
    };
  };
  
  // ----- docReady ----- //
  
  utils.docReady = function( callback ) {
    var readyState = document.readyState;
    if ( readyState == 'complete' || readyState == 'interactive' ) {
      // do async to allow for other scripts to run. metafizzy/flickity#441
      setTimeout( callback );
    } else {
      document.addEventListener( 'DOMContentLoaded', callback );
    }
  };
  
  // ----- htmlInit ----- //
  
  // http://jamesroberts.name/blog/2010/02/22/string-functions-for-javascript-trim-to-camel-case-to-dashed-and-to-underscore/
  utils.toDashed = function( str ) {
    return str.replace( /(.)([A-Z])/g, function( match, $1, $2 ) {
      return $1 + '-' + $2;
    }).toLowerCase();
  };
  
  var console = window.console;
  /**
   * allow user to initialize classes via [data-namespace] or .js-namespace class
   * htmlInit( Widget, 'widgetName' )
   * options are parsed from data-namespace-options
   */
  utils.htmlInit = function( WidgetClass, namespace ) {
    utils.docReady( function() {
      var dashedNamespace = utils.toDashed( namespace );
      var dataAttr = 'data-' + dashedNamespace;
      var dataAttrElems = document.querySelectorAll( '[' + dataAttr + ']' );
      var jsDashElems = document.querySelectorAll( '.js-' + dashedNamespace );
      var elems = utils.makeArray( dataAttrElems )
        .concat( utils.makeArray( jsDashElems ) );
      var dataOptionsAttr = dataAttr + '-options';
      var jQuery = window.jQuery;
  
      elems.forEach( function( elem ) {
        var attr = elem.getAttribute( dataAttr ) ||
          elem.getAttribute( dataOptionsAttr );
        var options;
        try {
          options = attr && JSON.parse( attr );
        } catch ( error ) {
          // log error, do not initialize
          if ( console ) {
            console.error( 'Error parsing ' + dataAttr + ' on ' + elem.className +
            ': ' + error );
          }
          return;
        }
        // initialize
        var instance = new WidgetClass( elem, options );
        // make available via $().data('namespace')
        if ( jQuery ) {
          jQuery.data( elem, namespace, instance );
        }
      });
  
    });
  };
  
  // -----  ----- //
  
  return utils;
  
  }));
  
  /**
   * Outlayer Item
   */
  
  ( function( window, factory ) {
    // universal module definition
    /* jshint strict: false */ /* globals define, module, require */
    if ( typeof define == 'function' && define.amd ) {
      // AMD - RequireJS
      define( 'outlayer/item',[
          'ev-emitter/ev-emitter',
          'get-size/get-size'
        ],
        factory
      );
    } else if ( typeof module == 'object' && module.exports ) {
      // CommonJS - Browserify, Webpack
      module.exports = factory(
        require('ev-emitter'),
        require('get-size')
      );
    } else {
      // browser global
      window.Outlayer = {};
      window.Outlayer.Item = factory(
        window.EvEmitter,
        window.getSize
      );
    }
  
  }( window, function factory( EvEmitter, getSize ) {
  'use strict';
  
  // ----- helpers ----- //
  
  function isEmptyObj( obj ) {
    for ( var prop in obj ) {
      return false;
    }
    prop = null;
    return true;
  }
  
  // -------------------------- CSS3 support -------------------------- //
  
  
  var docElemStyle = document.documentElement.style;
  
  var transitionProperty = typeof docElemStyle.transition == 'string' ?
    'transition' : 'WebkitTransition';
  var transformProperty = typeof docElemStyle.transform == 'string' ?
    'transform' : 'WebkitTransform';
  
  var transitionEndEvent = {
    WebkitTransition: 'webkitTransitionEnd',
    transition: 'transitionend'
  }[ transitionProperty ];
  
  // cache all vendor properties that could have vendor prefix
  var vendorProperties = {
    transform: transformProperty,
    transition: transitionProperty,
    transitionDuration: transitionProperty + 'Duration',
    transitionProperty: transitionProperty + 'Property',
    transitionDelay: transitionProperty + 'Delay'
  };
  
  // -------------------------- Item -------------------------- //
  
  function Item( element, layout ) {
    if ( !element ) {
      return;
    }
  
    this.element = element;
    // parent layout class, i.e. Masonry, Isotope, or Packery
    this.layout = layout;
    this.position = {
      x: 0,
      y: 0
    };
  
    this._create();
  }
  
  // inherit EvEmitter
  var proto = Item.prototype = Object.create( EvEmitter.prototype );
  proto.constructor = Item;
  
  proto._create = function() {
    // transition objects
    this._transn = {
      ingProperties: {},
      clean: {},
      onEnd: {}
    };
  
    this.css({
      position: 'absolute'
    });
  };
  
  // trigger specified handler for event type
  proto.handleEvent = function( event ) {
    var method = 'on' + event.type;
    if ( this[ method ] ) {
      this[ method ]( event );
    }
  };
  
  proto.getSize = function() {
    this.size = getSize( this.element );
  };
  
  /**
   * apply CSS styles to element
   * @param {Object} style
   */
  proto.css = function( style ) {
    var elemStyle = this.element.style;
  
    for ( var prop in style ) {
      // use vendor property if available
      var supportedProp = vendorProperties[ prop ] || prop;
      elemStyle[ supportedProp ] = style[ prop ];
    }
  };
  
   // measure position, and sets it
  proto.getPosition = function() {
    var style = getComputedStyle( this.element );
    var isOriginLeft = this.layout._getOption('originLeft');
    var isOriginTop = this.layout._getOption('originTop');
    var xValue = style[ isOriginLeft ? 'left' : 'right' ];
    var yValue = style[ isOriginTop ? 'top' : 'bottom' ];
    var x = parseFloat( xValue );
    var y = parseFloat( yValue );
    // convert percent to pixels
    var layoutSize = this.layout.size;
    if ( xValue.indexOf('%') != -1 ) {
      x = ( x / 100 ) * layoutSize.width;
    }
    if ( yValue.indexOf('%') != -1 ) {
      y = ( y / 100 ) * layoutSize.height;
    }
    // clean up 'auto' or other non-integer values
    x = isNaN( x ) ? 0 : x;
    y = isNaN( y ) ? 0 : y;
    // remove padding from measurement
    x -= isOriginLeft ? layoutSize.paddingLeft : layoutSize.paddingRight;
    y -= isOriginTop ? layoutSize.paddingTop : layoutSize.paddingBottom;
  
    this.position.x = x;
    this.position.y = y;
  };
  
  // set settled position, apply padding
  proto.layoutPosition = function() {
    var layoutSize = this.layout.size;
    var style = {};
    var isOriginLeft = this.layout._getOption('originLeft');
    var isOriginTop = this.layout._getOption('originTop');
  
    // x
    var xPadding = isOriginLeft ? 'paddingLeft' : 'paddingRight';
    var xProperty = isOriginLeft ? 'left' : 'right';
    var xResetProperty = isOriginLeft ? 'right' : 'left';
  
    var x = this.position.x + layoutSize[ xPadding ];
    // set in percentage or pixels
    style[ xProperty ] = this.getXValue( x );
    // reset other property
    style[ xResetProperty ] = '';
  
    // y
    var yPadding = isOriginTop ? 'paddingTop' : 'paddingBottom';
    var yProperty = isOriginTop ? 'top' : 'bottom';
    var yResetProperty = isOriginTop ? 'bottom' : 'top';
  
    var y = this.position.y + layoutSize[ yPadding ];
    // set in percentage or pixels
    style[ yProperty ] = this.getYValue( y );
    // reset other property
    style[ yResetProperty ] = '';
  
    this.css( style );
    this.emitEvent( 'layout', [ this ] );
  };
  
  proto.getXValue = function( x ) {
    var isHorizontal = this.layout._getOption('horizontal');
    return this.layout.options.percentPosition && !isHorizontal ?
      ( ( x / this.layout.size.width ) * 100 ) + '%' : x + 'px';
  };
  
  proto.getYValue = function( y ) {
    var isHorizontal = this.layout._getOption('horizontal');
    return this.layout.options.percentPosition && isHorizontal ?
      ( ( y / this.layout.size.height ) * 100 ) + '%' : y + 'px';
  };
  
  proto._transitionTo = function( x, y ) {
    this.getPosition();
    // get current x & y from top/left
    var curX = this.position.x;
    var curY = this.position.y;
  
    var didNotMove = x == this.position.x && y == this.position.y;
  
    // save end position
    this.setPosition( x, y );
  
    // if did not move and not transitioning, just go to layout
    if ( didNotMove && !this.isTransitioning ) {
      this.layoutPosition();
      return;
    }
  
    var transX = x - curX;
    var transY = y - curY;
    var transitionStyle = {};
    transitionStyle.transform = this.getTranslate( transX, transY );
  
    this.transition({
      to: transitionStyle,
      onTransitionEnd: {
        transform: this.layoutPosition
      },
      isCleaning: true
    });
  };
  
  proto.getTranslate = function( x, y ) {
    // flip cooridinates if origin on right or bottom
    var isOriginLeft = this.layout._getOption('originLeft');
    var isOriginTop = this.layout._getOption('originTop');
    x = isOriginLeft ? x : -x;
    y = isOriginTop ? y : -y;
    return 'translate3d(' + x + 'px, ' + y + 'px, 0)';
  };
  
  // non transition + transform support
  proto.goTo = function( x, y ) {
    this.setPosition( x, y );
    this.layoutPosition();
  };
  
  proto.moveTo = proto._transitionTo;
  
  proto.setPosition = function( x, y ) {
    this.position.x = parseFloat( x );
    this.position.y = parseFloat( y );
  };
  
  // ----- transition ----- //
  
  /**
   * @param {Object} style - CSS
   * @param {Function} onTransitionEnd
   */
  
  // non transition, just trigger callback
  proto._nonTransition = function( args ) {
    this.css( args.to );
    if ( args.isCleaning ) {
      this._removeStyles( args.to );
    }
    for ( var prop in args.onTransitionEnd ) {
      args.onTransitionEnd[ prop ].call( this );
    }
  };
  
  /**
   * proper transition
   * @param {Object} args - arguments
   *   @param {Object} to - style to transition to
   *   @param {Object} from - style to start transition from
   *   @param {Boolean} isCleaning - removes transition styles after transition
   *   @param {Function} onTransitionEnd - callback
   */
  proto.transition = function( args ) {
    // redirect to nonTransition if no transition duration
    if ( !parseFloat( this.layout.options.transitionDuration ) ) {
      this._nonTransition( args );
      return;
    }
  
    var _transition = this._transn;
    // keep track of onTransitionEnd callback by css property
    for ( var prop in args.onTransitionEnd ) {
      _transition.onEnd[ prop ] = args.onTransitionEnd[ prop ];
    }
    // keep track of properties that are transitioning
    for ( prop in args.to ) {
      _transition.ingProperties[ prop ] = true;
      // keep track of properties to clean up when transition is done
      if ( args.isCleaning ) {
        _transition.clean[ prop ] = true;
      }
    }
  
    // set from styles
    if ( args.from ) {
      this.css( args.from );
      // force redraw. http://blog.alexmaccaw.com/css-transitions
      var h = this.element.offsetHeight;
      // hack for JSHint to hush about unused var
      h = null;
    }
    // enable transition
    this.enableTransition( args.to );
    // set styles that are transitioning
    this.css( args.to );
  
    this.isTransitioning = true;
  
  };
  
  // dash before all cap letters, including first for
  // WebkitTransform => -webkit-transform
  function toDashedAll( str ) {
    return str.replace( /([A-Z])/g, function( $1 ) {
      return '-' + $1.toLowerCase();
    });
  }
  
  var transitionProps = 'opacity,' + toDashedAll( transformProperty );
  
  proto.enableTransition = function(/* style */) {
    // HACK changing transitionProperty during a transition
    // will cause transition to jump
    if ( this.isTransitioning ) {
      return;
    }
  
    // make `transition: foo, bar, baz` from style object
    // HACK un-comment this when enableTransition can work
    // while a transition is happening
    // var transitionValues = [];
    // for ( var prop in style ) {
    //   // dash-ify camelCased properties like WebkitTransition
    //   prop = vendorProperties[ prop ] || prop;
    //   transitionValues.push( toDashedAll( prop ) );
    // }
    // munge number to millisecond, to match stagger
    var duration = this.layout.options.transitionDuration;
    duration = typeof duration == 'number' ? duration + 'ms' : duration;
    // enable transition styles
    this.css({
      transitionProperty: transitionProps,
      transitionDuration: duration,
      transitionDelay: this.staggerDelay || 0
    });
    // listen for transition end event
    this.element.addEventListener( transitionEndEvent, this, false );
  };
  
  // ----- events ----- //
  
  proto.onwebkitTransitionEnd = function( event ) {
    this.ontransitionend( event );
  };
  
  proto.onotransitionend = function( event ) {
    this.ontransitionend( event );
  };
  
  // properties that I munge to make my life easier
  var dashedVendorProperties = {
    '-webkit-transform': 'transform'
  };
  
  proto.ontransitionend = function( event ) {
    // disregard bubbled events from children
    if ( event.target !== this.element ) {
      return;
    }
    var _transition = this._transn;
    // get property name of transitioned property, convert to prefix-free
    var propertyName = dashedVendorProperties[ event.propertyName ] || event.propertyName;
  
    // remove property that has completed transitioning
    delete _transition.ingProperties[ propertyName ];
    // check if any properties are still transitioning
    if ( isEmptyObj( _transition.ingProperties ) ) {
      // all properties have completed transitioning
      this.disableTransition();
    }
    // clean style
    if ( propertyName in _transition.clean ) {
      // clean up style
      this.element.style[ event.propertyName ] = '';
      delete _transition.clean[ propertyName ];
    }
    // trigger onTransitionEnd callback
    if ( propertyName in _transition.onEnd ) {
      var onTransitionEnd = _transition.onEnd[ propertyName ];
      onTransitionEnd.call( this );
      delete _transition.onEnd[ propertyName ];
    }
  
    this.emitEvent( 'transitionEnd', [ this ] );
  };
  
  proto.disableTransition = function() {
    this.removeTransitionStyles();
    this.element.removeEventListener( transitionEndEvent, this, false );
    this.isTransitioning = false;
  };
  
  /**
   * removes style property from element
   * @param {Object} style
  **/
  proto._removeStyles = function( style ) {
    // clean up transition styles
    var cleanStyle = {};
    for ( var prop in style ) {
      cleanStyle[ prop ] = '';
    }
    this.css( cleanStyle );
  };
  
  var cleanTransitionStyle = {
    transitionProperty: '',
    transitionDuration: '',
    transitionDelay: ''
  };
  
  proto.removeTransitionStyles = function() {
    // remove transition
    this.css( cleanTransitionStyle );
  };
  
  // ----- stagger ----- //
  
  proto.stagger = function( delay ) {
    delay = isNaN( delay ) ? 0 : delay;
    this.staggerDelay = delay + 'ms';
  };
  
  // ----- show/hide/remove ----- //
  
  // remove element from DOM
  proto.removeElem = function() {
    this.element.parentNode.removeChild( this.element );
    // remove display: none
    this.css({ display: '' });
    this.emitEvent( 'remove', [ this ] );
  };
  
  proto.remove = function() {
    // just remove element if no transition support or no transition
    if ( !transitionProperty || !parseFloat( this.layout.options.transitionDuration ) ) {
      this.removeElem();
      return;
    }
  
    // start transition
    this.once( 'transitionEnd', function() {
      this.removeElem();
    });
    this.hide();
  };
  
  proto.reveal = function() {
    delete this.isHidden;
    // remove display: none
    this.css({ display: '' });
  
    var options = this.layout.options;
  
    var onTransitionEnd = {};
    var transitionEndProperty = this.getHideRevealTransitionEndProperty('visibleStyle');
    onTransitionEnd[ transitionEndProperty ] = this.onRevealTransitionEnd;
  
    this.transition({
      from: options.hiddenStyle,
      to: options.visibleStyle,
      isCleaning: true,
      onTransitionEnd: onTransitionEnd
    });
  };
  
  proto.onRevealTransitionEnd = function() {
    // check if still visible
    // during transition, item may have been hidden
    if ( !this.isHidden ) {
      this.emitEvent('reveal');
    }
  };
  
  /**
   * get style property use for hide/reveal transition end
   * @param {String} styleProperty - hiddenStyle/visibleStyle
   * @returns {String}
   */
  proto.getHideRevealTransitionEndProperty = function( styleProperty ) {
    var optionStyle = this.layout.options[ styleProperty ];
    // use opacity
    if ( optionStyle.opacity ) {
      return 'opacity';
    }
    // get first property
    for ( var prop in optionStyle ) {
      return prop;
    }
  };
  
  proto.hide = function() {
    // set flag
    this.isHidden = true;
    // remove display: none
    this.css({ display: '' });
  
    var options = this.layout.options;
  
    var onTransitionEnd = {};
    var transitionEndProperty = this.getHideRevealTransitionEndProperty('hiddenStyle');
    onTransitionEnd[ transitionEndProperty ] = this.onHideTransitionEnd;
  
    this.transition({
      from: options.visibleStyle,
      to: options.hiddenStyle,
      // keep hidden stuff hidden
      isCleaning: true,
      onTransitionEnd: onTransitionEnd
    });
  };
  
  proto.onHideTransitionEnd = function() {
    // check if still hidden
    // during transition, item may have been un-hidden
    if ( this.isHidden ) {
      this.css({ display: 'none' });
      this.emitEvent('hide');
    }
  };
  
  proto.destroy = function() {
    this.css({
      position: '',
      left: '',
      right: '',
      top: '',
      bottom: '',
      transition: '',
      transform: ''
    });
  };
  
  return Item;
  
  }));
  
  /*!
   * Outlayer v2.1.1
   * the brains and guts of a layout library
   * MIT license
   */
  
  ( function( window, factory ) {
    'use strict';
    // universal module definition
    /* jshint strict: false */ /* globals define, module, require */
    if ( typeof define == 'function' && define.amd ) {
      // AMD - RequireJS
      define( 'outlayer/outlayer',[
          'ev-emitter/ev-emitter',
          'get-size/get-size',
          'fizzy-ui-utils/utils',
          './item'
        ],
        function( EvEmitter, getSize, utils, Item ) {
          return factory( window, EvEmitter, getSize, utils, Item);
        }
      );
    } else if ( typeof module == 'object' && module.exports ) {
      // CommonJS - Browserify, Webpack
      module.exports = factory(
        window,
        require('ev-emitter'),
        require('get-size'),
        require('fizzy-ui-utils'),
        require('./item')
      );
    } else {
      // browser global
      window.Outlayer = factory(
        window,
        window.EvEmitter,
        window.getSize,
        window.fizzyUIUtils,
        window.Outlayer.Item
      );
    }
  
  }( window, function factory( window, EvEmitter, getSize, utils, Item ) {
  'use strict';
  
  // ----- vars ----- //
  
  var console = window.console;
  var jQuery = window.jQuery;
  var noop = function() {};
  
  // -------------------------- Outlayer -------------------------- //
  
  // globally unique identifiers
  var GUID = 0;
  // internal store of all Outlayer intances
  var instances = {};
  
  
  /**
   * @param {Element, String} element
   * @param {Object} options
   * @constructor
   */
  function Outlayer( element, options ) {
    var queryElement = utils.getQueryElement( element );
    if ( !queryElement ) {
      if ( console ) {
        console.error( 'Bad element for ' + this.constructor.namespace +
          ': ' + ( queryElement || element ) );
      }
      return;
    }
    this.element = queryElement;
    // add jQuery
    if ( jQuery ) {
      this.$element = jQuery( this.element );
    }
  
    // options
    this.options = utils.extend( {}, this.constructor.defaults );
    this.option( options );
  
    // add id for Outlayer.getFromElement
    var id = ++GUID;
    this.element.outlayerGUID = id; // expando
    instances[ id ] = this; // associate via id
  
    // kick it off
    this._create();
  
    var isInitLayout = this._getOption('initLayout');
    if ( isInitLayout ) {
      this.layout();
    }
  }
  
  // settings are for internal use only
  Outlayer.namespace = 'outlayer';
  Outlayer.Item = Item;
  
  // default options
  Outlayer.defaults = {
    containerStyle: {
      position: 'relative'
    },
    initLayout: true,
    originLeft: true,
    originTop: true,
    resize: true,
    resizeContainer: true,
    // item options
    transitionDuration: '0.4s',
    hiddenStyle: {
      opacity: 0,
      transform: 'scale(0.001)'
    },
    visibleStyle: {
      opacity: 1,
      transform: 'scale(1)'
    }
  };
  
  var proto = Outlayer.prototype;
  // inherit EvEmitter
  utils.extend( proto, EvEmitter.prototype );
  
  /**
   * set options
   * @param {Object} opts
   */
  proto.option = function( opts ) {
    utils.extend( this.options, opts );
  };
  
  /**
   * get backwards compatible option value, check old name
   */
  proto._getOption = function( option ) {
    var oldOption = this.constructor.compatOptions[ option ];
    return oldOption && this.options[ oldOption ] !== undefined ?
      this.options[ oldOption ] : this.options[ option ];
  };
  
  Outlayer.compatOptions = {
    // currentName: oldName
    initLayout: 'isInitLayout',
    horizontal: 'isHorizontal',
    layoutInstant: 'isLayoutInstant',
    originLeft: 'isOriginLeft',
    originTop: 'isOriginTop',
    resize: 'isResizeBound',
    resizeContainer: 'isResizingContainer'
  };
  
  proto._create = function() {
    // get items from children
    this.reloadItems();
    // elements that affect layout, but are not laid out
    this.stamps = [];
    this.stamp( this.options.stamp );
    // set container style
    utils.extend( this.element.style, this.options.containerStyle );
  
    // bind resize method
    var canBindResize = this._getOption('resize');
    if ( canBindResize ) {
      this.bindResize();
    }
  };
  
  // goes through all children again and gets bricks in proper order
  proto.reloadItems = function() {
    // collection of item elements
    this.items = this._itemize( this.element.children );
  };
  
  
  /**
   * turn elements into Outlayer.Items to be used in layout
   * @param {Array or NodeList or HTMLElement} elems
   * @returns {Array} items - collection of new Outlayer Items
   */
  proto._itemize = function( elems ) {
  
    var itemElems = this._filterFindItemElements( elems );
    var Item = this.constructor.Item;
  
    // create new Outlayer Items for collection
    var items = [];
    for ( var i=0; i < itemElems.length; i++ ) {
      var elem = itemElems[i];
      var item = new Item( elem, this );
      items.push( item );
    }
  
    return items;
  };
  
  /**
   * get item elements to be used in layout
   * @param {Array or NodeList or HTMLElement} elems
   * @returns {Array} items - item elements
   */
  proto._filterFindItemElements = function( elems ) {
    return utils.filterFindElements( elems, this.options.itemSelector );
  };
  
  /**
   * getter method for getting item elements
   * @returns {Array} elems - collection of item elements
   */
  proto.getItemElements = function() {
    return this.items.map( function( item ) {
      return item.element;
    });
  };
  
  // ----- init & layout ----- //
  
  /**
   * lays out all items
   */
  proto.layout = function() {
    this._resetLayout();
    this._manageStamps();
  
    // don't animate first layout
    var layoutInstant = this._getOption('layoutInstant');
    var isInstant = layoutInstant !== undefined ?
      layoutInstant : !this._isLayoutInited;
    this.layoutItems( this.items, isInstant );
  
    // flag for initalized
    this._isLayoutInited = true;
  };
  
  // _init is alias for layout
  proto._init = proto.layout;
  
  /**
   * logic before any new layout
   */
  proto._resetLayout = function() {
    this.getSize();
  };
  
  
  proto.getSize = function() {
    this.size = getSize( this.element );
  };
  
  /**
   * get measurement from option, for columnWidth, rowHeight, gutter
   * if option is String -> get element from selector string, & get size of element
   * if option is Element -> get size of element
   * else use option as a number
   *
   * @param {String} measurement
   * @param {String} size - width or height
   * @private
   */
  proto._getMeasurement = function( measurement, size ) {
    var option = this.options[ measurement ];
    var elem;
    if ( !option ) {
      // default to 0
      this[ measurement ] = 0;
    } else {
      // use option as an element
      if ( typeof option == 'string' ) {
        elem = this.element.querySelector( option );
      } else if ( option instanceof HTMLElement ) {
        elem = option;
      }
      // use size of element, if element
      this[ measurement ] = elem ? getSize( elem )[ size ] : option;
    }
  };
  
  /**
   * layout a collection of item elements
   * @api public
   */
  proto.layoutItems = function( items, isInstant ) {
    items = this._getItemsForLayout( items );
  
    this._layoutItems( items, isInstant );
  
    this._postLayout();
  };
  
  /**
   * get the items to be laid out
   * you may want to skip over some items
   * @param {Array} items
   * @returns {Array} items
   */
  proto._getItemsForLayout = function( items ) {
    return items.filter( function( item ) {
      return !item.isIgnored;
    });
  };
  
  /**
   * layout items
   * @param {Array} items
   * @param {Boolean} isInstant
   */
  proto._layoutItems = function( items, isInstant ) {
    this._emitCompleteOnItems( 'layout', items );
  
    if ( !items || !items.length ) {
      // no items, emit event with empty array
      return;
    }
  
    var queue = [];
  
    items.forEach( function( item ) {
      // get x/y object from method
      var position = this._getItemLayoutPosition( item );
      // enqueue
      position.item = item;
      position.isInstant = isInstant || item.isLayoutInstant;
      queue.push( position );
    }, this );
  
    this._processLayoutQueue( queue );
  };
  
  /**
   * get item layout position
   * @param {Outlayer.Item} item
   * @returns {Object} x and y position
   */
  proto._getItemLayoutPosition = function( /* item */ ) {
    return {
      x: 0,
      y: 0
    };
  };
  
  /**
   * iterate over array and position each item
   * Reason being - separating this logic prevents 'layout invalidation'
   * thx @paul_irish
   * @param {Array} queue
   */
  proto._processLayoutQueue = function( queue ) {
    this.updateStagger();
    queue.forEach( function( obj, i ) {
      this._positionItem( obj.item, obj.x, obj.y, obj.isInstant, i );
    }, this );
  };
  
  // set stagger from option in milliseconds number
  proto.updateStagger = function() {
    var stagger = this.options.stagger;
    if ( stagger === null || stagger === undefined ) {
      this.stagger = 0;
      return;
    }
    this.stagger = getMilliseconds( stagger );
    return this.stagger;
  };
  
  /**
   * Sets position of item in DOM
   * @param {Outlayer.Item} item
   * @param {Number} x - horizontal position
   * @param {Number} y - vertical position
   * @param {Boolean} isInstant - disables transitions
   */
  proto._positionItem = function( item, x, y, isInstant, i ) {
    if ( isInstant ) {
      // if not transition, just set CSS
      item.goTo( x, y );
    } else {
      item.stagger( i * this.stagger );
      item.moveTo( x, y );
    }
  };
  
  /**
   * Any logic you want to do after each layout,
   * i.e. size the container
   */
  proto._postLayout = function() {
    this.resizeContainer();
  };
  
  proto.resizeContainer = function() {
    var isResizingContainer = this._getOption('resizeContainer');
    if ( !isResizingContainer ) {
      return;
    }
    var size = this._getContainerSize();
    if ( size ) {
      this._setContainerMeasure( size.width, true );
      this._setContainerMeasure( size.height, false );
    }
  };
  
  /**
   * Sets width or height of container if returned
   * @returns {Object} size
   *   @param {Number} width
   *   @param {Number} height
   */
  proto._getContainerSize = noop;
  
  /**
   * @param {Number} measure - size of width or height
   * @param {Boolean} isWidth
   */
  proto._setContainerMeasure = function( measure, isWidth ) {
    if ( measure === undefined ) {
      return;
    }
  
    var elemSize = this.size;
    // add padding and border width if border box
    if ( elemSize.isBorderBox ) {
      measure += isWidth ? elemSize.paddingLeft + elemSize.paddingRight +
        elemSize.borderLeftWidth + elemSize.borderRightWidth :
        elemSize.paddingBottom + elemSize.paddingTop +
        elemSize.borderTopWidth + elemSize.borderBottomWidth;
    }
  
    measure = Math.max( measure, 0 );
    this.element.style[ isWidth ? 'width' : 'height' ] = measure + 'px';
  };
  
  /**
   * emit eventComplete on a collection of items events
   * @param {String} eventName
   * @param {Array} items - Outlayer.Items
   */
  proto._emitCompleteOnItems = function( eventName, items ) {
    var _this = this;
    function onComplete() {
      _this.dispatchEvent( eventName + 'Complete', null, [ items ] );
    }
  
    var count = items.length;
    if ( !items || !count ) {
      onComplete();
      return;
    }
  
    var doneCount = 0;
    function tick() {
      doneCount++;
      if ( doneCount == count ) {
        onComplete();
      }
    }
  
    // bind callback
    items.forEach( function( item ) {
      item.once( eventName, tick );
    });
  };
  
  /**
   * emits events via EvEmitter and jQuery events
   * @param {String} type - name of event
   * @param {Event} event - original event
   * @param {Array} args - extra arguments
   */
  proto.dispatchEvent = function( type, event, args ) {
    // add original event to arguments
    var emitArgs = event ? [ event ].concat( args ) : args;
    this.emitEvent( type, emitArgs );
  
    if ( jQuery ) {
      // set this.$element
      this.$element = this.$element || jQuery( this.element );
      if ( event ) {
        // create jQuery event
        var $event = jQuery.Event( event );
        $event.type = type;
        this.$element.trigger( $event, args );
      } else {
        // just trigger with type if no event available
        this.$element.trigger( type, args );
      }
    }
  };
  
  // -------------------------- ignore & stamps -------------------------- //
  
  
  /**
   * keep item in collection, but do not lay it out
   * ignored items do not get skipped in layout
   * @param {Element} elem
   */
  proto.ignore = function( elem ) {
    var item = this.getItem( elem );
    if ( item ) {
      item.isIgnored = true;
    }
  };
  
  /**
   * return item to layout collection
   * @param {Element} elem
   */
  proto.unignore = function( elem ) {
    var item = this.getItem( elem );
    if ( item ) {
      delete item.isIgnored;
    }
  };
  
  /**
   * adds elements to stamps
   * @param {NodeList, Array, Element, or String} elems
   */
  proto.stamp = function( elems ) {
    elems = this._find( elems );
    if ( !elems ) {
      return;
    }
  
    this.stamps = this.stamps.concat( elems );
    // ignore
    elems.forEach( this.ignore, this );
  };
  
  /**
   * removes elements to stamps
   * @param {NodeList, Array, or Element} elems
   */
  proto.unstamp = function( elems ) {
    elems = this._find( elems );
    if ( !elems ){
      return;
    }
  
    elems.forEach( function( elem ) {
      // filter out removed stamp elements
      utils.removeFrom( this.stamps, elem );
      this.unignore( elem );
    }, this );
  };
  
  /**
   * finds child elements
   * @param {NodeList, Array, Element, or String} elems
   * @returns {Array} elems
   */
  proto._find = function( elems ) {
    if ( !elems ) {
      return;
    }
    // if string, use argument as selector string
    if ( typeof elems == 'string' ) {
      elems = this.element.querySelectorAll( elems );
    }
    elems = utils.makeArray( elems );
    return elems;
  };
  
  proto._manageStamps = function() {
    if ( !this.stamps || !this.stamps.length ) {
      return;
    }
  
    this._getBoundingRect();
  
    this.stamps.forEach( this._manageStamp, this );
  };
  
  // update boundingLeft / Top
  proto._getBoundingRect = function() {
    // get bounding rect for container element
    var boundingRect = this.element.getBoundingClientRect();
    var size = this.size;
    this._boundingRect = {
      left: boundingRect.left + size.paddingLeft + size.borderLeftWidth,
      top: boundingRect.top + size.paddingTop + size.borderTopWidth,
      right: boundingRect.right - ( size.paddingRight + size.borderRightWidth ),
      bottom: boundingRect.bottom - ( size.paddingBottom + size.borderBottomWidth )
    };
  };
  
  /**
   * @param {Element} stamp
  **/
  proto._manageStamp = noop;
  
  /**
   * get x/y position of element relative to container element
   * @param {Element} elem
   * @returns {Object} offset - has left, top, right, bottom
   */
  proto._getElementOffset = function( elem ) {
    var boundingRect = elem.getBoundingClientRect();
    var thisRect = this._boundingRect;
    var size = getSize( elem );
    var offset = {
      left: boundingRect.left - thisRect.left - size.marginLeft,
      top: boundingRect.top - thisRect.top - size.marginTop,
      right: thisRect.right - boundingRect.right - size.marginRight,
      bottom: thisRect.bottom - boundingRect.bottom - size.marginBottom
    };
    return offset;
  };
  
  // -------------------------- resize -------------------------- //
  
  // enable event handlers for listeners
  // i.e. resize -> onresize
  proto.handleEvent = utils.handleEvent;
  
  /**
   * Bind layout to window resizing
   */
  proto.bindResize = function() {
    window.addEventListener( 'resize', this );
    this.isResizeBound = true;
  };
  
  /**
   * Unbind layout to window resizing
   */
  proto.unbindResize = function() {
    window.removeEventListener( 'resize', this );
    this.isResizeBound = false;
  };
  
  proto.onresize = function() {
    this.resize();
  };
  
  utils.debounceMethod( Outlayer, 'onresize', 100 );
  
  proto.resize = function() {
    // don't trigger if size did not change
    // or if resize was unbound. See #9
    if ( !this.isResizeBound || !this.needsResizeLayout() ) {
      return;
    }
  
    this.layout();
  };
  
  /**
   * check if layout is needed post layout
   * @returns Boolean
   */
  proto.needsResizeLayout = function() {
    var size = getSize( this.element );
    // check that this.size and size are there
    // IE8 triggers resize on body size change, so they might not be
    var hasSizes = this.size && size;
    return hasSizes && size.innerWidth !== this.size.innerWidth;
  };
  
  // -------------------------- methods -------------------------- //
  
  /**
   * add items to Outlayer instance
   * @param {Array or NodeList or Element} elems
   * @returns {Array} items - Outlayer.Items
  **/
  proto.addItems = function( elems ) {
    var items = this._itemize( elems );
    // add items to collection
    if ( items.length ) {
      this.items = this.items.concat( items );
    }
    return items;
  };
  
  /**
   * Layout newly-appended item elements
   * @param {Array or NodeList or Element} elems
   */
  proto.appended = function( elems ) {
    var items = this.addItems( elems );
    if ( !items.length ) {
      return;
    }
    // layout and reveal just the new items
    this.layoutItems( items, true );
    this.reveal( items );
  };
  
  /**
   * Layout prepended elements
   * @param {Array or NodeList or Element} elems
   */
  proto.prepended = function( elems ) {
    var items = this._itemize( elems );
    if ( !items.length ) {
      return;
    }
    // add items to beginning of collection
    var previousItems = this.items.slice(0);
    this.items = items.concat( previousItems );
    // start new layout
    this._resetLayout();
    this._manageStamps();
    // layout new stuff without transition
    this.layoutItems( items, true );
    this.reveal( items );
    // layout previous items
    this.layoutItems( previousItems );
  };
  
  /**
   * reveal a collection of items
   * @param {Array of Outlayer.Items} items
   */
  proto.reveal = function( items ) {
    this._emitCompleteOnItems( 'reveal', items );
    if ( !items || !items.length ) {
      return;
    }
    var stagger = this.updateStagger();
    items.forEach( function( item, i ) {
      item.stagger( i * stagger );
      item.reveal();
    });
  };
  
  /**
   * hide a collection of items
   * @param {Array of Outlayer.Items} items
   */
  proto.hide = function( items ) {
    this._emitCompleteOnItems( 'hide', items );
    if ( !items || !items.length ) {
      return;
    }
    var stagger = this.updateStagger();
    items.forEach( function( item, i ) {
      item.stagger( i * stagger );
      item.hide();
    });
  };
  
  /**
   * reveal item elements
   * @param {Array}, {Element}, {NodeList} items
   */
  proto.revealItemElements = function( elems ) {
    var items = this.getItems( elems );
    this.reveal( items );
  };
  
  /**
   * hide item elements
   * @param {Array}, {Element}, {NodeList} items
   */
  proto.hideItemElements = function( elems ) {
    var items = this.getItems( elems );
    this.hide( items );
  };
  
  /**
   * get Outlayer.Item, given an Element
   * @param {Element} elem
   * @param {Function} callback
   * @returns {Outlayer.Item} item
   */
  proto.getItem = function( elem ) {
    // loop through items to get the one that matches
    for ( var i=0; i < this.items.length; i++ ) {
      var item = this.items[i];
      if ( item.element == elem ) {
        // return item
        return item;
      }
    }
  };
  
  /**
   * get collection of Outlayer.Items, given Elements
   * @param {Array} elems
   * @returns {Array} items - Outlayer.Items
   */
  proto.getItems = function( elems ) {
    elems = utils.makeArray( elems );
    var items = [];
    elems.forEach( function( elem ) {
      var item = this.getItem( elem );
      if ( item ) {
        items.push( item );
      }
    }, this );
  
    return items;
  };
  
  /**
   * remove element(s) from instance and DOM
   * @param {Array or NodeList or Element} elems
   */
  proto.remove = function( elems ) {
    var removeItems = this.getItems( elems );
  
    this._emitCompleteOnItems( 'remove', removeItems );
  
    // bail if no items to remove
    if ( !removeItems || !removeItems.length ) {
      return;
    }
  
    removeItems.forEach( function( item ) {
      item.remove();
      // remove item from collection
      utils.removeFrom( this.items, item );
    }, this );
  };
  
  // ----- destroy ----- //
  
  // remove and disable Outlayer instance
  proto.destroy = function() {
    // clean up dynamic styles
    var style = this.element.style;
    style.height = '';
    style.position = '';
    style.width = '';
    // destroy items
    this.items.forEach( function( item ) {
      item.destroy();
    });
  
    this.unbindResize();
  
    var id = this.element.outlayerGUID;
    delete instances[ id ]; // remove reference to instance by id
    delete this.element.outlayerGUID;
    // remove data for jQuery
    if ( jQuery ) {
      jQuery.removeData( this.element, this.constructor.namespace );
    }
  
  };
  
  // -------------------------- data -------------------------- //
  
  /**
   * get Outlayer instance from element
   * @param {Element} elem
   * @returns {Outlayer}
   */
  Outlayer.data = function( elem ) {
    elem = utils.getQueryElement( elem );
    var id = elem && elem.outlayerGUID;
    return id && instances[ id ];
  };
  
  
  // -------------------------- create Outlayer class -------------------------- //
  
  /**
   * create a layout class
   * @param {String} namespace
   */
  Outlayer.create = function( namespace, options ) {
    // sub-class Outlayer
    var Layout = subclass( Outlayer );
    // apply new options and compatOptions
    Layout.defaults = utils.extend( {}, Outlayer.defaults );
    utils.extend( Layout.defaults, options );
    Layout.compatOptions = utils.extend( {}, Outlayer.compatOptions  );
  
    Layout.namespace = namespace;
  
    Layout.data = Outlayer.data;
  
    // sub-class Item
    Layout.Item = subclass( Item );
  
    // -------------------------- declarative -------------------------- //
  
    utils.htmlInit( Layout, namespace );
  
    // -------------------------- jQuery bridge -------------------------- //
  
    // make into jQuery plugin
    if ( jQuery && jQuery.bridget ) {
      jQuery.bridget( namespace, Layout );
    }
  
    return Layout;
  };
  
  function subclass( Parent ) {
    function SubClass() {
      Parent.apply( this, arguments );
    }
  
    SubClass.prototype = Object.create( Parent.prototype );
    SubClass.prototype.constructor = SubClass;
  
    return SubClass;
  }
  
  // ----- helpers ----- //
  
  // how many milliseconds are in each unit
  var msUnits = {
    ms: 1,
    s: 1000
  };
  
  // munge time-like parameter into millisecond number
  // '0.4s' -> 40
  function getMilliseconds( time ) {
    if ( typeof time == 'number' ) {
      return time;
    }
    var matches = time.match( /(^\d*\.?\d*)(\w*)/ );
    var num = matches && matches[1];
    var unit = matches && matches[2];
    if ( !num.length ) {
      return 0;
    }
    num = parseFloat( num );
    var mult = msUnits[ unit ] || 1;
    return num * mult;
  }
  
  // ----- fin ----- //
  
  // back in global
  Outlayer.Item = Item;
  
  return Outlayer;
  
  }));
  
  /**
   * Isotope Item
  **/
  
  ( function( window, factory ) {
    // universal module definition
    /* jshint strict: false */ /*globals define, module, require */
    if ( typeof define == 'function' && define.amd ) {
      // AMD
      define( 'isotope-layout/js/item',[
          'outlayer/outlayer'
        ],
        factory );
    } else if ( typeof module == 'object' && module.exports ) {
      // CommonJS
      module.exports = factory(
        require('outlayer')
      );
    } else {
      // browser global
      window.Isotope = window.Isotope || {};
      window.Isotope.Item = factory(
        window.Outlayer
      );
    }
  
  }( window, function factory( Outlayer ) {
  'use strict';
  
  // -------------------------- Item -------------------------- //
  
  // sub-class Outlayer Item
  function Item() {
    Outlayer.Item.apply( this, arguments );
  }
  
  var proto = Item.prototype = Object.create( Outlayer.Item.prototype );
  
  var _create = proto._create;
  proto._create = function() {
    // assign id, used for original-order sorting
    this.id = this.layout.itemGUID++;
    _create.call( this );
    this.sortData = {};
  };
  
  proto.updateSortData = function() {
    if ( this.isIgnored ) {
      return;
    }
    // default sorters
    this.sortData.id = this.id;
    // for backward compatibility
    this.sortData['original-order'] = this.id;
    this.sortData.random = Math.random();
    // go thru getSortData obj and apply the sorters
    var getSortData = this.layout.options.getSortData;
    var sorters = this.layout._sorters;
    for ( var key in getSortData ) {
      var sorter = sorters[ key ];
      this.sortData[ key ] = sorter( this.element, this );
    }
  };
  
  var _destroy = proto.destroy;
  proto.destroy = function() {
    // call super
    _destroy.apply( this, arguments );
    // reset display, #741
    this.css({
      display: ''
    });
  };
  
  return Item;
  
  }));
  
  /**
   * Isotope LayoutMode
   */
  
  ( function( window, factory ) {
    // universal module definition
    /* jshint strict: false */ /*globals define, module, require */
    if ( typeof define == 'function' && define.amd ) {
      // AMD
      define( 'isotope-layout/js/layout-mode',[
          'get-size/get-size',
          'outlayer/outlayer'
        ],
        factory );
    } else if ( typeof module == 'object' && module.exports ) {
      // CommonJS
      module.exports = factory(
        require('get-size'),
        require('outlayer')
      );
    } else {
      // browser global
      window.Isotope = window.Isotope || {};
      window.Isotope.LayoutMode = factory(
        window.getSize,
        window.Outlayer
      );
    }
  
  }( window, function factory( getSize, Outlayer ) {
    'use strict';
  
    // layout mode class
    function LayoutMode( isotope ) {
      this.isotope = isotope;
      // link properties
      if ( isotope ) {
        this.options = isotope.options[ this.namespace ];
        this.element = isotope.element;
        this.items = isotope.filteredItems;
        this.size = isotope.size;
      }
    }
  
    var proto = LayoutMode.prototype;
  
    /**
     * some methods should just defer to default Outlayer method
     * and reference the Isotope instance as `this`
    **/
    var facadeMethods = [
      '_resetLayout',
      '_getItemLayoutPosition',
      '_manageStamp',
      '_getContainerSize',
      '_getElementOffset',
      'needsResizeLayout',
      '_getOption'
    ];
  
    facadeMethods.forEach( function( methodName ) {
      proto[ methodName ] = function() {
        return Outlayer.prototype[ methodName ].apply( this.isotope, arguments );
      };
    });
  
    // -----  ----- //
  
    // for horizontal layout modes, check vertical size
    proto.needsVerticalResizeLayout = function() {
      // don't trigger if size did not change
      var size = getSize( this.isotope.element );
      // check that this.size and size are there
      // IE8 triggers resize on body size change, so they might not be
      var hasSizes = this.isotope.size && size;
      return hasSizes && size.innerHeight != this.isotope.size.innerHeight;
    };
  
    // ----- measurements ----- //
  
    proto._getMeasurement = function() {
      this.isotope._getMeasurement.apply( this, arguments );
    };
  
    proto.getColumnWidth = function() {
      this.getSegmentSize( 'column', 'Width' );
    };
  
    proto.getRowHeight = function() {
      this.getSegmentSize( 'row', 'Height' );
    };
  
    /**
     * get columnWidth or rowHeight
     * segment: 'column' or 'row'
     * size 'Width' or 'Height'
    **/
    proto.getSegmentSize = function( segment, size ) {
      var segmentName = segment + size;
      var outerSize = 'outer' + size;
      // columnWidth / outerWidth // rowHeight / outerHeight
      this._getMeasurement( segmentName, outerSize );
      // got rowHeight or columnWidth, we can chill
      if ( this[ segmentName ] ) {
        return;
      }
      // fall back to item of first element
      var firstItemSize = this.getFirstItemSize();
      this[ segmentName ] = firstItemSize && firstItemSize[ outerSize ] ||
        // or size of container
        this.isotope.size[ 'inner' + size ];
    };
  
    proto.getFirstItemSize = function() {
      var firstItem = this.isotope.filteredItems[0];
      return firstItem && firstItem.element && getSize( firstItem.element );
    };
  
    // ----- methods that should reference isotope ----- //
  
    proto.layout = function() {
      this.isotope.layout.apply( this.isotope, arguments );
    };
  
    proto.getSize = function() {
      this.isotope.getSize();
      this.size = this.isotope.size;
    };
  
    // -------------------------- create -------------------------- //
  
    LayoutMode.modes = {};
  
    LayoutMode.create = function( namespace, options ) {
  
      function Mode() {
        LayoutMode.apply( this, arguments );
      }
  
      Mode.prototype = Object.create( proto );
      Mode.prototype.constructor = Mode;
  
      // default options
      if ( options ) {
        Mode.options = options;
      }
  
      Mode.prototype.namespace = namespace;
      // register in Isotope
      LayoutMode.modes[ namespace ] = Mode;
  
      return Mode;
    };
  
    return LayoutMode;
  
  }));
  
  /*!
   * Masonry v4.2.1
   * Cascading grid layout library
   * https://masonry.desandro.com
   * MIT License
   * by David DeSandro
   */
  
  ( function( window, factory ) {
    // universal module definition
    /* jshint strict: false */ /*globals define, module, require */
    if ( typeof define == 'function' && define.amd ) {
      // AMD
      define( 'masonry-layout/masonry',[
          'outlayer/outlayer',
          'get-size/get-size'
        ],
        factory );
    } else if ( typeof module == 'object' && module.exports ) {
      // CommonJS
      module.exports = factory(
        require('outlayer'),
        require('get-size')
      );
    } else {
      // browser global
      window.Masonry = factory(
        window.Outlayer,
        window.getSize
      );
    }
  
  }( window, function factory( Outlayer, getSize ) {
  
  
  
  // -------------------------- masonryDefinition -------------------------- //
  
    // create an Outlayer layout class
    var Masonry = Outlayer.create('masonry');
    // isFitWidth -> fitWidth
    Masonry.compatOptions.fitWidth = 'isFitWidth';
  
    var proto = Masonry.prototype;
  
    proto._resetLayout = function() {
      this.getSize();
      this._getMeasurement( 'columnWidth', 'outerWidth' );
      this._getMeasurement( 'gutter', 'outerWidth' );
      this.measureColumns();
  
      // reset column Y
      this.colYs = [];
      for ( var i=0; i < this.cols; i++ ) {
        this.colYs.push( 0 );
      }
  
      this.maxY = 0;
      this.horizontalColIndex = 0;
    };
  
    proto.measureColumns = function() {
      this.getContainerWidth();
      // if columnWidth is 0, default to outerWidth of first item
      if ( !this.columnWidth ) {
        var firstItem = this.items[0];
        var firstItemElem = firstItem && firstItem.element;
        // columnWidth fall back to item of first element
        this.columnWidth = firstItemElem && getSize( firstItemElem ).outerWidth ||
          // if first elem has no width, default to size of container
          this.containerWidth;
      }
  
      var columnWidth = this.columnWidth += this.gutter;
  
      // calculate columns
      var containerWidth = this.containerWidth + this.gutter;
      var cols = containerWidth / columnWidth;
      // fix rounding errors, typically with gutters
      var excess = columnWidth - containerWidth % columnWidth;
      // if overshoot is less than a pixel, round up, otherwise floor it
      var mathMethod = excess && excess < 1 ? 'round' : 'floor';
      cols = Math[ mathMethod ]( cols );
      this.cols = Math.max( cols, 1 );
    };
  
    proto.getContainerWidth = function() {
      // container is parent if fit width
      var isFitWidth = this._getOption('fitWidth');
      var container = isFitWidth ? this.element.parentNode : this.element;
      // check that this.size and size are there
      // IE8 triggers resize on body size change, so they might not be
      var size = getSize( container );
      this.containerWidth = size && size.innerWidth;
    };
  
    proto._getItemLayoutPosition = function( item ) {
      item.getSize();
      // how many columns does this brick span
      var remainder = item.size.outerWidth % this.columnWidth;
      var mathMethod = remainder && remainder < 1 ? 'round' : 'ceil';
      // round if off by 1 pixel, otherwise use ceil
      var colSpan = Math[ mathMethod ]( item.size.outerWidth / this.columnWidth );
      colSpan = Math.min( colSpan, this.cols );
      // use horizontal or top column position
      var colPosMethod = this.options.horizontalOrder ?
        '_getHorizontalColPosition' : '_getTopColPosition';
      var colPosition = this[ colPosMethod ]( colSpan, item );
      // position the brick
      var position = {
        x: this.columnWidth * colPosition.col,
        y: colPosition.y
      };
      // apply setHeight to necessary columns
      var setHeight = colPosition.y + item.size.outerHeight;
      var setMax = colSpan + colPosition.col;
      for ( var i = colPosition.col; i < setMax; i++ ) {
        this.colYs[i] = setHeight;
      }
  
      return position;
    };
  
    proto._getTopColPosition = function( colSpan ) {
      var colGroup = this._getTopColGroup( colSpan );
      // get the minimum Y value from the columns
      var minimumY = Math.min.apply( Math, colGroup );
  
      return {
        col: colGroup.indexOf( minimumY ),
        y: minimumY,
      };
    };
  
    /**
     * @param {Number} colSpan - number of columns the element spans
     * @returns {Array} colGroup
     */
    proto._getTopColGroup = function( colSpan ) {
      if ( colSpan < 2 ) {
        // if brick spans only one column, use all the column Ys
        return this.colYs;
      }
  
      var colGroup = [];
      // how many different places could this brick fit horizontally
      var groupCount = this.cols + 1 - colSpan;
      // for each group potential horizontal position
      for ( var i = 0; i < groupCount; i++ ) {
        colGroup[i] = this._getColGroupY( i, colSpan );
      }
      return colGroup;
    };
  
    proto._getColGroupY = function( col, colSpan ) {
      if ( colSpan < 2 ) {
        return this.colYs[ col ];
      }
      // make an array of colY values for that one group
      var groupColYs = this.colYs.slice( col, col + colSpan );
      // and get the max value of the array
      return Math.max.apply( Math, groupColYs );
    };
  
    // get column position based on horizontal index. #873
    proto._getHorizontalColPosition = function( colSpan, item ) {
      var col = this.horizontalColIndex % this.cols;
      var isOver = colSpan > 1 && col + colSpan > this.cols;
      // shift to next row if item can't fit on current row
      col = isOver ? 0 : col;
      // don't let zero-size items take up space
      var hasSize = item.size.outerWidth && item.size.outerHeight;
      this.horizontalColIndex = hasSize ? col + colSpan : this.horizontalColIndex;
  
      return {
        col: col,
        y: this._getColGroupY( col, colSpan ),
      };
    };
  
    proto._manageStamp = function( stamp ) {
      var stampSize = getSize( stamp );
      var offset = this._getElementOffset( stamp );
      // get the columns that this stamp affects
      var isOriginLeft = this._getOption('originLeft');
      var firstX = isOriginLeft ? offset.left : offset.right;
      var lastX = firstX + stampSize.outerWidth;
      var firstCol = Math.floor( firstX / this.columnWidth );
      firstCol = Math.max( 0, firstCol );
      var lastCol = Math.floor( lastX / this.columnWidth );
      // lastCol should not go over if multiple of columnWidth #425
      lastCol -= lastX % this.columnWidth ? 0 : 1;
      lastCol = Math.min( this.cols - 1, lastCol );
      // set colYs to bottom of the stamp
  
      var isOriginTop = this._getOption('originTop');
      var stampMaxY = ( isOriginTop ? offset.top : offset.bottom ) +
        stampSize.outerHeight;
      for ( var i = firstCol; i <= lastCol; i++ ) {
        this.colYs[i] = Math.max( stampMaxY, this.colYs[i] );
      }
    };
  
    proto._getContainerSize = function() {
      this.maxY = Math.max.apply( Math, this.colYs );
      var size = {
        height: this.maxY
      };
  
      if ( this._getOption('fitWidth') ) {
        size.width = this._getContainerFitWidth();
      }
  
      return size;
    };
  
    proto._getContainerFitWidth = function() {
      var unusedCols = 0;
      // count unused columns
      var i = this.cols;
      while ( --i ) {
        if ( this.colYs[i] !== 0 ) {
          break;
        }
        unusedCols++;
      }
      // fit container to columns that have been used
      return ( this.cols - unusedCols ) * this.columnWidth - this.gutter;
    };
  
    proto.needsResizeLayout = function() {
      var previousWidth = this.containerWidth;
      this.getContainerWidth();
      return previousWidth != this.containerWidth;
    };
  
    return Masonry;
  
  }));
  
  /*!
   * Masonry layout mode
   * sub-classes Masonry
   * https://masonry.desandro.com
   */
  
  ( function( window, factory ) {
    // universal module definition
    /* jshint strict: false */ /*globals define, module, require */
    if ( typeof define == 'function' && define.amd ) {
      // AMD
      define( 'isotope-layout/js/layout-modes/masonry',[
          '../layout-mode',
          'masonry-layout/masonry'
        ],
        factory );
    } else if ( typeof module == 'object' && module.exports ) {
      // CommonJS
      module.exports = factory(
        require('../layout-mode'),
        require('masonry-layout')
      );
    } else {
      // browser global
      factory(
        window.Isotope.LayoutMode,
        window.Masonry
      );
    }
  
  }( window, function factory( LayoutMode, Masonry ) {
  'use strict';
  
  // -------------------------- masonryDefinition -------------------------- //
  
    // create an Outlayer layout class
    var MasonryMode = LayoutMode.create('masonry');
  
    var proto = MasonryMode.prototype;
  
    var keepModeMethods = {
      _getElementOffset: true,
      layout: true,
      _getMeasurement: true
    };
  
    // inherit Masonry prototype
    for ( var method in Masonry.prototype ) {
      // do not inherit mode methods
      if ( !keepModeMethods[ method ] ) {
        proto[ method ] = Masonry.prototype[ method ];
      }
    }
  
    var measureColumns = proto.measureColumns;
    proto.measureColumns = function() {
      // set items, used if measuring first item
      this.items = this.isotope.filteredItems;
      measureColumns.call( this );
    };
  
    // point to mode options for fitWidth
    var _getOption = proto._getOption;
    proto._getOption = function( option ) {
      if ( option == 'fitWidth' ) {
        return this.options.isFitWidth !== undefined ?
          this.options.isFitWidth : this.options.fitWidth;
      }
      return _getOption.apply( this.isotope, arguments );
    };
  
    return MasonryMode;
  
  }));
  
  /**
   * fitRows layout mode
   */
  
  ( function( window, factory ) {
    // universal module definition
    /* jshint strict: false */ /*globals define, module, require */
    if ( typeof define == 'function' && define.amd ) {
      // AMD
      define( 'isotope-layout/js/layout-modes/fit-rows',[
          '../layout-mode'
        ],
        factory );
    } else if ( typeof exports == 'object' ) {
      // CommonJS
      module.exports = factory(
        require('../layout-mode')
      );
    } else {
      // browser global
      factory(
        window.Isotope.LayoutMode
      );
    }
  
  }( window, function factory( LayoutMode ) {
  'use strict';
  
  var FitRows = LayoutMode.create('fitRows');
  
  var proto = FitRows.prototype;
  
  proto._resetLayout = function() {
    this.x = 0;
    this.y = 0;
    this.maxY = 0;
    this._getMeasurement( 'gutter', 'outerWidth' );
  };
  
  proto._getItemLayoutPosition = function( item ) {
    item.getSize();
  
    var itemWidth = item.size.outerWidth + this.gutter;
    // if this element cannot fit in the current row
    var containerWidth = this.isotope.size.innerWidth + this.gutter;
    if ( this.x !== 0 && itemWidth + this.x > containerWidth ) {
      this.x = 0;
      this.y = this.maxY;
    }
  
    var position = {
      x: this.x,
      y: this.y
    };
  
    this.maxY = Math.max( this.maxY, this.y + item.size.outerHeight );
    this.x += itemWidth;
  
    return position;
  };
  
  proto._getContainerSize = function() {
    return { height: this.maxY };
  };
  
  return FitRows;
  
  }));
  
  /**
   * vertical layout mode
   */
  
  ( function( window, factory ) {
    // universal module definition
    /* jshint strict: false */ /*globals define, module, require */
    if ( typeof define == 'function' && define.amd ) {
      // AMD
      define( 'isotope-layout/js/layout-modes/vertical',[
          '../layout-mode'
        ],
        factory );
    } else if ( typeof module == 'object' && module.exports ) {
      // CommonJS
      module.exports = factory(
        require('../layout-mode')
      );
    } else {
      // browser global
      factory(
        window.Isotope.LayoutMode
      );
    }
  
  }( window, function factory( LayoutMode ) {
  'use strict';
  
  var Vertical = LayoutMode.create( 'vertical', {
    horizontalAlignment: 0
  });
  
  var proto = Vertical.prototype;
  
  proto._resetLayout = function() {
    this.y = 0;
  };
  
  proto._getItemLayoutPosition = function( item ) {
    item.getSize();
    var x = ( this.isotope.size.innerWidth - item.size.outerWidth ) *
      this.options.horizontalAlignment;
    var y = this.y;
    this.y += item.size.outerHeight;
    return { x: x, y: y };
  };
  
  proto._getContainerSize = function() {
    return { height: this.y };
  };
  
  return Vertical;
  
  }));
  
  /*!
   * Isotope v3.0.6
   *
   * Licensed GPLv3 for open source use
   * or Isotope Commercial License for commercial use
   *
   * https://isotope.metafizzy.co
   * Copyright 2010-2018 Metafizzy
   */
  
  ( function( window, factory ) {
    // universal module definition
    /* jshint strict: false */ /*globals define, module, require */
    if ( typeof define == 'function' && define.amd ) {
      // AMD
      define( [
          'outlayer/outlayer',
          'get-size/get-size',
          'desandro-matches-selector/matches-selector',
          'fizzy-ui-utils/utils',
          'isotope-layout/js/item',
          'isotope-layout/js/layout-mode',
          // include default layout modes
          'isotope-layout/js/layout-modes/masonry',
          'isotope-layout/js/layout-modes/fit-rows',
          'isotope-layout/js/layout-modes/vertical'
        ],
        function( Outlayer, getSize, matchesSelector, utils, Item, LayoutMode ) {
          return factory( window, Outlayer, getSize, matchesSelector, utils, Item, LayoutMode );
        });
    } else if ( typeof module == 'object' && module.exports ) {
      // CommonJS
      module.exports = factory(
        window,
        require('outlayer'),
        require('get-size'),
        require('desandro-matches-selector'),
        require('fizzy-ui-utils'),
        require('isotope-layout/js/item'),
        require('isotope-layout/js/layout-mode'),
        // include default layout modes
        require('isotope-layout/js/layout-modes/masonry'),
        require('isotope-layout/js/layout-modes/fit-rows'),
        require('isotope-layout/js/layout-modes/vertical')
      );
    } else {
      // browser global
      window.Isotope = factory(
        window,
        window.Outlayer,
        window.getSize,
        window.matchesSelector,
        window.fizzyUIUtils,
        window.Isotope.Item,
        window.Isotope.LayoutMode
      );
    }
  
  }( window, function factory( window, Outlayer, getSize, matchesSelector, utils,
    Item, LayoutMode ) {
  
  
  
  // -------------------------- vars -------------------------- //
  
  var jQuery = window.jQuery;
  
  // -------------------------- helpers -------------------------- //
  
  var trim = String.prototype.trim ?
    function( str ) {
      return str.trim();
    } :
    function( str ) {
      return str.replace( /^\s+|\s+$/g, '' );
    };
  
  // -------------------------- isotopeDefinition -------------------------- //
  
    // create an Outlayer layout class
    var Isotope = Outlayer.create( 'isotope', {
      layoutMode: 'masonry',
      isJQueryFiltering: true,
      sortAscending: true
    });
  
    Isotope.Item = Item;
    Isotope.LayoutMode = LayoutMode;
  
    var proto = Isotope.prototype;
  
    proto._create = function() {
      this.itemGUID = 0;
      // functions that sort items
      this._sorters = {};
      this._getSorters();
      // call super
      Outlayer.prototype._create.call( this );
  
      // create layout modes
      this.modes = {};
      // start filteredItems with all items
      this.filteredItems = this.items;
      // keep of track of sortBys
      this.sortHistory = [ 'original-order' ];
      // create from registered layout modes
      for ( var name in LayoutMode.modes ) {
        this._initLayoutMode( name );
      }
    };
  
    proto.reloadItems = function() {
      // reset item ID counter
      this.itemGUID = 0;
      // call super
      Outlayer.prototype.reloadItems.call( this );
    };
  
    proto._itemize = function() {
      var items = Outlayer.prototype._itemize.apply( this, arguments );
      // assign ID for original-order
      for ( var i=0; i < items.length; i++ ) {
        var item = items[i];
        item.id = this.itemGUID++;
      }
      this._updateItemsSortData( items );
      return items;
    };
  
  
    // -------------------------- layout -------------------------- //
  
    proto._initLayoutMode = function( name ) {
      var Mode = LayoutMode.modes[ name ];
      // set mode options
      // HACK extend initial options, back-fill in default options
      var initialOpts = this.options[ name ] || {};
      this.options[ name ] = Mode.options ?
        utils.extend( Mode.options, initialOpts ) : initialOpts;
      // init layout mode instance
      this.modes[ name ] = new Mode( this );
    };
  
  
    proto.layout = function() {
      // if first time doing layout, do all magic
      if ( !this._isLayoutInited && this._getOption('initLayout') ) {
        this.arrange();
        return;
      }
      this._layout();
    };
  
    // private method to be used in layout() & magic()
    proto._layout = function() {
      // don't animate first layout
      var isInstant = this._getIsInstant();
      // layout flow
      this._resetLayout();
      this._manageStamps();
      this.layoutItems( this.filteredItems, isInstant );
  
      // flag for initalized
      this._isLayoutInited = true;
    };
  
    // filter + sort + layout
    proto.arrange = function( opts ) {
      // set any options pass
      this.option( opts );
      this._getIsInstant();
      // filter, sort, and layout
  
      // filter
      var filtered = this._filter( this.items );
      this.filteredItems = filtered.matches;
  
      this._bindArrangeComplete();
  
      if ( this._isInstant ) {
        this._noTransition( this._hideReveal, [ filtered ] );
      } else {
        this._hideReveal( filtered );
      }
  
      this._sort();
      this._layout();
    };
    // alias to _init for main plugin method
    proto._init = proto.arrange;
  
    proto._hideReveal = function( filtered ) {
      this.reveal( filtered.needReveal );
      this.hide( filtered.needHide );
    };
  
    // HACK
    // Don't animate/transition first layout
    // Or don't animate/transition other layouts
    proto._getIsInstant = function() {
      var isLayoutInstant = this._getOption('layoutInstant');
      var isInstant = isLayoutInstant !== undefined ? isLayoutInstant :
        !this._isLayoutInited;
      this._isInstant = isInstant;
      return isInstant;
    };
  
    // listen for layoutComplete, hideComplete and revealComplete
    // to trigger arrangeComplete
    proto._bindArrangeComplete = function() {
      // listen for 3 events to trigger arrangeComplete
      var isLayoutComplete, isHideComplete, isRevealComplete;
      var _this = this;
      function arrangeParallelCallback() {
        if ( isLayoutComplete && isHideComplete && isRevealComplete ) {
          _this.dispatchEvent( 'arrangeComplete', null, [ _this.filteredItems ] );
        }
      }
      this.once( 'layoutComplete', function() {
        isLayoutComplete = true;
        arrangeParallelCallback();
      });
      this.once( 'hideComplete', function() {
        isHideComplete = true;
        arrangeParallelCallback();
      });
      this.once( 'revealComplete', function() {
        isRevealComplete = true;
        arrangeParallelCallback();
      });
    };
  
    // -------------------------- filter -------------------------- //
  
    proto._filter = function( items ) {
      var filter = this.options.filter;
      filter = filter || '*';
      var matches = [];
      var hiddenMatched = [];
      var visibleUnmatched = [];
  
      var test = this._getFilterTest( filter );
  
      // test each item
      for ( var i=0; i < items.length; i++ ) {
        var item = items[i];
        if ( item.isIgnored ) {
          continue;
        }
        // add item to either matched or unmatched group
        var isMatched = test( item );
        // item.isFilterMatched = isMatched;
        // add to matches if its a match
        if ( isMatched ) {
          matches.push( item );
        }
        // add to additional group if item needs to be hidden or revealed
        if ( isMatched && item.isHidden ) {
          hiddenMatched.push( item );
        } else if ( !isMatched && !item.isHidden ) {
          visibleUnmatched.push( item );
        }
      }
  
      // return collections of items to be manipulated
      return {
        matches: matches,
        needReveal: hiddenMatched,
        needHide: visibleUnmatched
      };
    };
  
    // get a jQuery, function, or a matchesSelector test given the filter
    proto._getFilterTest = function( filter ) {
      if ( jQuery && this.options.isJQueryFiltering ) {
        // use jQuery
        return function( item ) {
          return jQuery( item.element ).is( filter );
        };
      }
      if ( typeof filter == 'function' ) {
        // use filter as function
        return function( item ) {
          return filter( item.element );
        };
      }
      // default, use filter as selector string
      return function( item ) {
        return matchesSelector( item.element, filter );
      };
    };
  
    // -------------------------- sorting -------------------------- //
  
    /**
     * @params {Array} elems
     * @public
     */
    proto.updateSortData = function( elems ) {
      // get items
      var items;
      if ( elems ) {
        elems = utils.makeArray( elems );
        items = this.getItems( elems );
      } else {
        // update all items if no elems provided
        items = this.items;
      }
  
      this._getSorters();
      this._updateItemsSortData( items );
    };
  
    proto._getSorters = function() {
      var getSortData = this.options.getSortData;
      for ( var key in getSortData ) {
        var sorter = getSortData[ key ];
        this._sorters[ key ] = mungeSorter( sorter );
      }
    };
  
    /**
     * @params {Array} items - of Isotope.Items
     * @private
     */
    proto._updateItemsSortData = function( items ) {
      // do not update if no items
      var len = items && items.length;
  
      for ( var i=0; len && i < len; i++ ) {
        var item = items[i];
        item.updateSortData();
      }
    };
  
    // ----- munge sorter ----- //
  
    // encapsulate this, as we just need mungeSorter
    // other functions in here are just for munging
    var mungeSorter = ( function() {
      // add a magic layer to sorters for convienent shorthands
      // `.foo-bar` will use the text of .foo-bar querySelector
      // `[foo-bar]` will use attribute
      // you can also add parser
      // `.foo-bar parseInt` will parse that as a number
      function mungeSorter( sorter ) {
        // if not a string, return function or whatever it is
        if ( typeof sorter != 'string' ) {
          return sorter;
        }
        // parse the sorter string
        var args = trim( sorter ).split(' ');
        var query = args[0];
        // check if query looks like [an-attribute]
        var attrMatch = query.match( /^\[(.+)\]$/ );
        var attr = attrMatch && attrMatch[1];
        var getValue = getValueGetter( attr, query );
        // use second argument as a parser
        var parser = Isotope.sortDataParsers[ args[1] ];
        // parse the value, if there was a parser
        sorter = parser ? function( elem ) {
          return elem && parser( getValue( elem ) );
        } :
        // otherwise just return value
        function( elem ) {
          return elem && getValue( elem );
        };
  
        return sorter;
      }
  
      // get an attribute getter, or get text of the querySelector
      function getValueGetter( attr, query ) {
        // if query looks like [foo-bar], get attribute
        if ( attr ) {
          return function getAttribute( elem ) {
            return elem.getAttribute( attr );
          };
        }
  
        // otherwise, assume its a querySelector, and get its text
        return function getChildText( elem ) {
          var child = elem.querySelector( query );
          return child && child.textContent;
        };
      }
  
      return mungeSorter;
    })();
  
    // parsers used in getSortData shortcut strings
    Isotope.sortDataParsers = {
      'parseInt': function( val ) {
        return parseInt( val, 10 );
      },
      'parseFloat': function( val ) {
        return parseFloat( val );
      }
    };
  
    // ----- sort method ----- //
  
    // sort filteredItem order
    proto._sort = function() {
      if ( !this.options.sortBy ) {
        return;
      }
      // keep track of sortBy History
      var sortBys = utils.makeArray( this.options.sortBy );
      if ( !this._getIsSameSortBy( sortBys ) ) {
        // concat all sortBy and sortHistory, add to front, oldest goes in last
        this.sortHistory = sortBys.concat( this.sortHistory );
      }
      // sort magic
      var itemSorter = getItemSorter( this.sortHistory, this.options.sortAscending );
      this.filteredItems.sort( itemSorter );
    };
  
    // check if sortBys is same as start of sortHistory
    proto._getIsSameSortBy = function( sortBys ) {
      for ( var i=0; i < sortBys.length; i++ ) {
        if ( sortBys[i] != this.sortHistory[i] ) {
          return false;
        }
      }
      return true;
    };
  
    // returns a function used for sorting
    function getItemSorter( sortBys, sortAsc ) {
      return function sorter( itemA, itemB ) {
        // cycle through all sortKeys
        for ( var i = 0; i < sortBys.length; i++ ) {
          var sortBy = sortBys[i];
          var a = itemA.sortData[ sortBy ];
          var b = itemB.sortData[ sortBy ];
          if ( a > b || a < b ) {
            // if sortAsc is an object, use the value given the sortBy key
            var isAscending = sortAsc[ sortBy ] !== undefined ? sortAsc[ sortBy ] : sortAsc;
            var direction = isAscending ? 1 : -1;
            return ( a > b ? 1 : -1 ) * direction;
          }
        }
        return 0;
      };
    }
  
    // -------------------------- methods -------------------------- //
  
    // get layout mode
    proto._mode = function() {
      var layoutMode = this.options.layoutMode;
      var mode = this.modes[ layoutMode ];
      if ( !mode ) {
        // TODO console.error
        throw new Error( 'No layout mode: ' + layoutMode );
      }
      // HACK sync mode's options
      // any options set after init for layout mode need to be synced
      mode.options = this.options[ layoutMode ];
      return mode;
    };
  
    proto._resetLayout = function() {
      // trigger original reset layout
      Outlayer.prototype._resetLayout.call( this );
      this._mode()._resetLayout();
    };
  
    proto._getItemLayoutPosition = function( item  ) {
      return this._mode()._getItemLayoutPosition( item );
    };
  
    proto._manageStamp = function( stamp ) {
      this._mode()._manageStamp( stamp );
    };
  
    proto._getContainerSize = function() {
      return this._mode()._getContainerSize();
    };
  
    proto.needsResizeLayout = function() {
      return this._mode().needsResizeLayout();
    };
  
    // -------------------------- adding & removing -------------------------- //
  
    // HEADS UP overwrites default Outlayer appended
    proto.appended = function( elems ) {
      var items = this.addItems( elems );
      if ( !items.length ) {
        return;
      }
      // filter, layout, reveal new items
      var filteredItems = this._filterRevealAdded( items );
      // add to filteredItems
      this.filteredItems = this.filteredItems.concat( filteredItems );
    };
  
    // HEADS UP overwrites default Outlayer prepended
    proto.prepended = function( elems ) {
      var items = this._itemize( elems );
      if ( !items.length ) {
        return;
      }
      // start new layout
      this._resetLayout();
      this._manageStamps();
      // filter, layout, reveal new items
      var filteredItems = this._filterRevealAdded( items );
      // layout previous items
      this.layoutItems( this.filteredItems );
      // add to items and filteredItems
      this.filteredItems = filteredItems.concat( this.filteredItems );
      this.items = items.concat( this.items );
    };
  
    proto._filterRevealAdded = function( items ) {
      var filtered = this._filter( items );
      this.hide( filtered.needHide );
      // reveal all new items
      this.reveal( filtered.matches );
      // layout new items, no transition
      this.layoutItems( filtered.matches, true );
      return filtered.matches;
    };
  
    /**
     * Filter, sort, and layout newly-appended item elements
     * @param {Array or NodeList or Element} elems
     */
    proto.insert = function( elems ) {
      var items = this.addItems( elems );
      if ( !items.length ) {
        return;
      }
      // append item elements
      var i, item;
      var len = items.length;
      for ( i=0; i < len; i++ ) {
        item = items[i];
        this.element.appendChild( item.element );
      }
      // filter new stuff
      var filteredInsertItems = this._filter( items ).matches;
      // set flag
      for ( i=0; i < len; i++ ) {
        items[i].isLayoutInstant = true;
      }
      this.arrange();
      // reset flag
      for ( i=0; i < len; i++ ) {
        delete items[i].isLayoutInstant;
      }
      this.reveal( filteredInsertItems );
    };
  
    var _remove = proto.remove;
    proto.remove = function( elems ) {
      elems = utils.makeArray( elems );
      var removeItems = this.getItems( elems );
      // do regular thing
      _remove.call( this, elems );
      // bail if no items to remove
      var len = removeItems && removeItems.length;
      // remove elems from filteredItems
      for ( var i=0; len && i < len; i++ ) {
        var item = removeItems[i];
        // remove item from collection
        utils.removeFrom( this.filteredItems, item );
      }
    };
  
    proto.shuffle = function() {
      // update random sortData
      for ( var i=0; i < this.items.length; i++ ) {
        var item = this.items[i];
        item.sortData.random = Math.random();
      }
      this.options.sortBy = 'random';
      this._sort();
      this._layout();
    };
  
    /**
     * trigger fn without transition
     * kind of hacky to have this in the first place
     * @param {Function} fn
     * @param {Array} args
     * @returns ret
     * @private
     */
    proto._noTransition = function( fn, args ) {
      // save transitionDuration before disabling
      var transitionDuration = this.options.transitionDuration;
      // disable transition
      this.options.transitionDuration = 0;
      // do it
      var returnValue = fn.apply( this, args );
      // re-enable transition for reveal
      this.options.transitionDuration = transitionDuration;
      return returnValue;
    };
  
    // ----- helper methods ----- //
  
    /**
     * getter method for getting filtered item elements
     * @returns {Array} elems - collection of item elements
     */
    proto.getFilteredItemElements = function() {
      return this.filteredItems.map( function( item ) {
        return item.element;
      });
    };
  
    // -----  ----- //
  
    return Isotope;
  
  }));