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authorMario <mario@mariovavti.com>2018-11-25 10:09:26 +0100
committerMario <mario@mariovavti.com>2018-11-25 10:09:26 +0100
commitc667572d3eedb0c31b29a4c469b378ccdcee0ba1 (patch)
tree70ec4ee1febc545e49a61d7a9b83c9e2cd955d93 /vendor/desandro/imagesloaded/imagesloaded.js
parentbc9f2922e0e255e97cb607d099f60c8a81c4736f (diff)
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update imagesloaded to version 4.1.4 via composer
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-rw-r--r--vendor/desandro/imagesloaded/imagesloaded.js377
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diff --git a/vendor/desandro/imagesloaded/imagesloaded.js b/vendor/desandro/imagesloaded/imagesloaded.js
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+/*!
+ * imagesLoaded v4.1.4
+ * JavaScript is all like "You images are done yet or what?"
+ * MIT License
+ */
+
+( function( window, factory ) { 'use strict';
+ // universal module definition
+
+ /*global define: false, module: false, require: false */
+
+ if ( typeof define == 'function' && define.amd ) {
+ // AMD
+ define( [
+ 'ev-emitter/ev-emitter'
+ ], function( EvEmitter ) {
+ return factory( window, EvEmitter );
+ });
+ } else if ( typeof module == 'object' && module.exports ) {
+ // CommonJS
+ module.exports = factory(
+ window,
+ require('ev-emitter')
+ );
+ } else {
+ // browser global
+ window.imagesLoaded = factory(
+ window,
+ window.EvEmitter
+ );
+ }
+
+})( typeof window !== 'undefined' ? window : this,
+
+// -------------------------- factory -------------------------- //
+
+function factory( window, EvEmitter ) {
+
+'use strict';
+
+var $ = window.jQuery;
+var console = window.console;
+
+// -------------------------- helpers -------------------------- //
+
+// extend objects
+function extend( a, b ) {
+ for ( var prop in b ) {
+ a[ prop ] = b[ prop ];
+ }
+ return a;
+}
+
+var arraySlice = Array.prototype.slice;
+
+// turn element or nodeList into an array
+function makeArray( obj ) {
+ if ( Array.isArray( obj ) ) {
+ // use object if already an array
+ return obj;
+ }
+
+ 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 ];
+}
+
+// -------------------------- imagesLoaded -------------------------- //
+
+/**
+ * @param {Array, Element, NodeList, String} elem
+ * @param {Object or Function} options - if function, use as callback
+ * @param {Function} onAlways - callback function
+ */
+function ImagesLoaded( elem, options, onAlways ) {
+ // coerce ImagesLoaded() without new, to be new ImagesLoaded()
+ if ( !( this instanceof ImagesLoaded ) ) {
+ return new ImagesLoaded( elem, options, onAlways );
+ }
+ // use elem as selector string
+ var queryElem = elem;
+ if ( typeof elem == 'string' ) {
+ queryElem = document.querySelectorAll( elem );
+ }
+ // bail if bad element
+ if ( !queryElem ) {
+ console.error( 'Bad element for imagesLoaded ' + ( queryElem || elem ) );
+ return;
+ }
+
+ this.elements = makeArray( queryElem );
+ this.options = extend( {}, this.options );
+ // shift arguments if no options set
+ if ( typeof options == 'function' ) {
+ onAlways = options;
+ } else {
+ extend( this.options, options );
+ }
+
+ if ( onAlways ) {
+ this.on( 'always', onAlways );
+ }
+
+ this.getImages();
+
+ if ( $ ) {
+ // add jQuery Deferred object
+ this.jqDeferred = new $.Deferred();
+ }
+
+ // HACK check async to allow time to bind listeners
+ setTimeout( this.check.bind( this ) );
+}
+
+ImagesLoaded.prototype = Object.create( EvEmitter.prototype );
+
+ImagesLoaded.prototype.options = {};
+
+ImagesLoaded.prototype.getImages = function() {
+ this.images = [];
+
+ // filter & find items if we have an item selector
+ this.elements.forEach( this.addElementImages, this );
+};
+
+/**
+ * @param {Node} element
+ */
+ImagesLoaded.prototype.addElementImages = function( elem ) {
+ // filter siblings
+ if ( elem.nodeName == 'IMG' ) {
+ this.addImage( elem );
+ }
+ // get background image on element
+ if ( this.options.background === true ) {
+ this.addElementBackgroundImages( elem );
+ }
+
+ // find children
+ // no non-element nodes, #143
+ var nodeType = elem.nodeType;
+ if ( !nodeType || !elementNodeTypes[ nodeType ] ) {
+ return;
+ }
+ var childImgs = elem.querySelectorAll('img');
+ // concat childElems to filterFound array
+ for ( var i=0; i < childImgs.length; i++ ) {
+ var img = childImgs[i];
+ this.addImage( img );
+ }
+
+ // get child background images
+ if ( typeof this.options.background == 'string' ) {
+ var children = elem.querySelectorAll( this.options.background );
+ for ( i=0; i < children.length; i++ ) {
+ var child = children[i];
+ this.addElementBackgroundImages( child );
+ }
+ }
+};
+
+var elementNodeTypes = {
+ 1: true,
+ 9: true,
+ 11: true
+};
+
+ImagesLoaded.prototype.addElementBackgroundImages = function( elem ) {
+ var style = getComputedStyle( elem );
+ if ( !style ) {
+ // Firefox returns null if in a hidden iframe https://bugzil.la/548397
+ return;
+ }
+ // get url inside url("...")
+ var reURL = /url\((['"])?(.*?)\1\)/gi;
+ var matches = reURL.exec( style.backgroundImage );
+ while ( matches !== null ) {
+ var url = matches && matches[2];
+ if ( url ) {
+ this.addBackground( url, elem );
+ }
+ matches = reURL.exec( style.backgroundImage );
+ }
+};
+
+/**
+ * @param {Image} img
+ */
+ImagesLoaded.prototype.addImage = function( img ) {
+ var loadingImage = new LoadingImage( img );
+ this.images.push( loadingImage );
+};
+
+ImagesLoaded.prototype.addBackground = function( url, elem ) {
+ var background = new Background( url, elem );
+ this.images.push( background );
+};
+
+ImagesLoaded.prototype.check = function() {
+ var _this = this;
+ this.progressedCount = 0;
+ this.hasAnyBroken = false;
+ // complete if no images
+ if ( !this.images.length ) {
+ this.complete();
+ return;
+ }
+
+ function onProgress( image, elem, message ) {
+ // HACK - Chrome triggers event before object properties have changed. #83
+ setTimeout( function() {
+ _this.progress( image, elem, message );
+ });
+ }
+
+ this.images.forEach( function( loadingImage ) {
+ loadingImage.once( 'progress', onProgress );
+ loadingImage.check();
+ });
+};
+
+ImagesLoaded.prototype.progress = function( image, elem, message ) {
+ this.progressedCount++;
+ this.hasAnyBroken = this.hasAnyBroken || !image.isLoaded;
+ // progress event
+ this.emitEvent( 'progress', [ this, image, elem ] );
+ if ( this.jqDeferred && this.jqDeferred.notify ) {
+ this.jqDeferred.notify( this, image );
+ }
+ // check if completed
+ if ( this.progressedCount == this.images.length ) {
+ this.complete();
+ }
+
+ if ( this.options.debug && console ) {
+ console.log( 'progress: ' + message, image, elem );
+ }
+};
+
+ImagesLoaded.prototype.complete = function() {
+ var eventName = this.hasAnyBroken ? 'fail' : 'done';
+ this.isComplete = true;
+ this.emitEvent( eventName, [ this ] );
+ this.emitEvent( 'always', [ this ] );
+ if ( this.jqDeferred ) {
+ var jqMethod = this.hasAnyBroken ? 'reject' : 'resolve';
+ this.jqDeferred[ jqMethod ]( this );
+ }
+};
+
+// -------------------------- -------------------------- //
+
+function LoadingImage( img ) {
+ this.img = img;
+}
+
+LoadingImage.prototype = Object.create( EvEmitter.prototype );
+
+LoadingImage.prototype.check = function() {
+ // If complete is true and browser supports natural sizes,
+ // try to check for image status manually.
+ var isComplete = this.getIsImageComplete();
+ if ( isComplete ) {
+ // report based on naturalWidth
+ this.confirm( this.img.naturalWidth !== 0, 'naturalWidth' );
+ return;
+ }
+
+ // If none of the checks above matched, simulate loading on detached element.
+ this.proxyImage = new Image();
+ this.proxyImage.addEventListener( 'load', this );
+ this.proxyImage.addEventListener( 'error', this );
+ // bind to image as well for Firefox. #191
+ this.img.addEventListener( 'load', this );
+ this.img.addEventListener( 'error', this );
+ this.proxyImage.src = this.img.src;
+};
+
+LoadingImage.prototype.getIsImageComplete = function() {
+ // check for non-zero, non-undefined naturalWidth
+ // fixes Safari+InfiniteScroll+Masonry bug infinite-scroll#671
+ return this.img.complete && this.img.naturalWidth;
+};
+
+LoadingImage.prototype.confirm = function( isLoaded, message ) {
+ this.isLoaded = isLoaded;
+ this.emitEvent( 'progress', [ this, this.img, message ] );
+};
+
+// ----- events ----- //
+
+// trigger specified handler for event type
+LoadingImage.prototype.handleEvent = function( event ) {
+ var method = 'on' + event.type;
+ if ( this[ method ] ) {
+ this[ method ]( event );
+ }
+};
+
+LoadingImage.prototype.onload = function() {
+ this.confirm( true, 'onload' );
+ this.unbindEvents();
+};
+
+LoadingImage.prototype.onerror = function() {
+ this.confirm( false, 'onerror' );
+ this.unbindEvents();
+};
+
+LoadingImage.prototype.unbindEvents = function() {
+ this.proxyImage.removeEventListener( 'load', this );
+ this.proxyImage.removeEventListener( 'error', this );
+ this.img.removeEventListener( 'load', this );
+ this.img.removeEventListener( 'error', this );
+};
+
+// -------------------------- Background -------------------------- //
+
+function Background( url, element ) {
+ this.url = url;
+ this.element = element;
+ this.img = new Image();
+}
+
+// inherit LoadingImage prototype
+Background.prototype = Object.create( LoadingImage.prototype );
+
+Background.prototype.check = function() {
+ this.img.addEventListener( 'load', this );
+ this.img.addEventListener( 'error', this );
+ this.img.src = this.url;
+ // check if image is already complete
+ var isComplete = this.getIsImageComplete();
+ if ( isComplete ) {
+ this.confirm( this.img.naturalWidth !== 0, 'naturalWidth' );
+ this.unbindEvents();
+ }
+};
+
+Background.prototype.unbindEvents = function() {
+ this.img.removeEventListener( 'load', this );
+ this.img.removeEventListener( 'error', this );
+};
+
+Background.prototype.confirm = function( isLoaded, message ) {
+ this.isLoaded = isLoaded;
+ this.emitEvent( 'progress', [ this, this.element, message ] );
+};
+
+// -------------------------- jQuery -------------------------- //
+
+ImagesLoaded.makeJQueryPlugin = function( jQuery ) {
+ jQuery = jQuery || window.jQuery;
+ if ( !jQuery ) {
+ return;
+ }
+ // set local variable
+ $ = jQuery;
+ // $().imagesLoaded()
+ $.fn.imagesLoaded = function( options, callback ) {
+ var instance = new ImagesLoaded( this, options, callback );
+ return instance.jqDeferred.promise( $(this) );
+ };
+};
+// try making plugin
+ImagesLoaded.makeJQueryPlugin();
+
+// -------------------------- -------------------------- //
+
+return ImagesLoaded;
+
+});