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node_modules/outlayer/outlayer.js

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+/*!
+ * 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( [
+        '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;
+
+}));