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Direktori : /home/t/r/a/tradesc/www/relax/wp-content/plugins/ewww-image-optimizer/includes/ |
Current File : /home/t/r/a/tradesc/www/relax/wp-content/plugins/ewww-image-optimizer/includes/load-webp.js |
/*globals jQuery,Window,HTMLElement,HTMLDocument,HTMLCollection,NodeList,MutationObserver */ /*exported Arrive*/ /*jshint latedef:false */ /* * arrive.js * v2.4.1 * https://github.com/uzairfarooq/arrive * MIT licensed * * Copyright (c) 2014-2017 Uzair Farooq */ var Arrive = (function(window, $, undefined) { "use strict"; if(!window.MutationObserver || typeof HTMLElement === 'undefined'){ return; //for unsupported browsers } var arriveUniqueId = 0; var utils = (function() { var matches = HTMLElement.prototype.matches || HTMLElement.prototype.webkitMatchesSelector || HTMLElement.prototype.mozMatchesSelector || HTMLElement.prototype.msMatchesSelector; return { matchesSelector: function(elem, selector) { return elem instanceof HTMLElement && matches.call(elem, selector); }, // to enable function overloading - By John Resig (MIT Licensed) addMethod: function (object, name, fn) { var old = object[ name ]; object[ name ] = function(){ if ( fn.length == arguments.length ) { return fn.apply( this, arguments ); } else if ( typeof old == 'function' ) { return old.apply( this, arguments ); } }; }, callCallbacks: function(callbacksToBeCalled, registrationData) { if (registrationData && registrationData.options.onceOnly && registrationData.firedElems.length == 1) { // as onlyOnce param is true, make sure we fire the event for only one item callbacksToBeCalled = [callbacksToBeCalled[0]]; } for (var i = 0, cb; (cb = callbacksToBeCalled[i]); i++) { if (cb && cb.callback) { cb.callback.call(cb.elem, cb.elem); } } if (registrationData && registrationData.options.onceOnly && registrationData.firedElems.length == 1) { // unbind event after first callback as onceOnly is true. registrationData.me.unbindEventWithSelectorAndCallback.call( registrationData.target, registrationData.selector, registrationData.callback ); } }, // traverse through all descendants of a node to check if event should be fired for any descendant checkChildNodesRecursively: function(nodes, registrationData, matchFunc, callbacksToBeCalled) { // check each new node if it matches the selector for (var i=0, node; (node = nodes[i]); i++) { if (matchFunc(node, registrationData, callbacksToBeCalled)) { callbacksToBeCalled.push({ callback: registrationData.callback, elem: node }); } if (node.childNodes.length > 0) { utils.checkChildNodesRecursively(node.childNodes, registrationData, matchFunc, callbacksToBeCalled); } } }, mergeArrays: function(firstArr, secondArr){ // Overwrites default options with user-defined options. var options = {}, attrName; for (attrName in firstArr) { if (firstArr.hasOwnProperty(attrName)) { options[attrName] = firstArr[attrName]; } } for (attrName in secondArr) { if (secondArr.hasOwnProperty(attrName)) { options[attrName] = secondArr[attrName]; } } return options; }, toElementsArray: function (elements) { // check if object is an array (or array like object) // Note: window object has .length property but it's not array of elements so don't consider it an array if (typeof elements !== 'undefined' && (typeof elements.length !== 'number' || elements === window)) { elements = [elements]; } return elements; } }; })(); // Class to maintain state of all registered events of a single type var EventsBucket = (function() { var EventsBucket = function() { // holds all the events this._eventsBucket = []; // function to be called while adding an event, the function should do the event initialization/registration this._beforeAdding = null; // function to be called while removing an event, the function should do the event destruction this._beforeRemoving = null; }; EventsBucket.prototype.addEvent = function(target, selector, options, callback) { var newEvent = { target: target, selector: selector, options: options, callback: callback, firedElems: [] }; if (this._beforeAdding) { this._beforeAdding(newEvent); } this._eventsBucket.push(newEvent); return newEvent; }; EventsBucket.prototype.removeEvent = function(compareFunction) { for (var i=this._eventsBucket.length - 1, registeredEvent; (registeredEvent = this._eventsBucket[i]); i--) { if (compareFunction(registeredEvent)) { if (this._beforeRemoving) { this._beforeRemoving(registeredEvent); } // mark callback as null so that even if an event mutation was already triggered it does not call callback var removedEvents = this._eventsBucket.splice(i, 1); if (removedEvents && removedEvents.length) { removedEvents[0].callback = null; } } } }; EventsBucket.prototype.beforeAdding = function(beforeAdding) { this._beforeAdding = beforeAdding; }; EventsBucket.prototype.beforeRemoving = function(beforeRemoving) { this._beforeRemoving = beforeRemoving; }; return EventsBucket; })(); /** * @constructor * General class for binding/unbinding arrive and leave events */ var MutationEvents = function(getObserverConfig, onMutation) { var eventsBucket = new EventsBucket(), me = this; var defaultOptions = { fireOnAttributesModification: false }; // actual event registration before adding it to bucket eventsBucket.beforeAdding(function(registrationData) { var target = registrationData.target, observer; // mutation observer does not work on window or document if (target === window.document || target === window) { target = document.getElementsByTagName("html")[0]; } // Create an observer instance observer = new MutationObserver(function(e) { onMutation.call(this, e, registrationData); }); var config = getObserverConfig(registrationData.options); observer.observe(target, config); registrationData.observer = observer; registrationData.me = me; }); // cleanup/unregister before removing an event eventsBucket.beforeRemoving(function (eventData) { eventData.observer.disconnect(); }); this.bindEvent = function(selector, options, callback) { options = utils.mergeArrays(defaultOptions, options); var elements = utils.toElementsArray(this); for (var i = 0; i < elements.length; i++) { eventsBucket.addEvent(elements[i], selector, options, callback); } }; this.unbindEvent = function() { var elements = utils.toElementsArray(this); eventsBucket.removeEvent(function(eventObj) { for (var i = 0; i < elements.length; i++) { if (this === undefined || eventObj.target === elements[i]) { return true; } } return false; }); }; this.unbindEventWithSelectorOrCallback = function(selector) { var elements = utils.toElementsArray(this), callback = selector, compareFunction; if (typeof selector === "function") { compareFunction = function(eventObj) { for (var i = 0; i < elements.length; i++) { if ((this === undefined || eventObj.target === elements[i]) && eventObj.callback === callback) { return true; } } return false; }; } else { compareFunction = function(eventObj) { for (var i = 0; i < elements.length; i++) { if ((this === undefined || eventObj.target === elements[i]) && eventObj.selector === selector) { return true; } } return false; }; } eventsBucket.removeEvent(compareFunction); }; this.unbindEventWithSelectorAndCallback = function(selector, callback) { var elements = utils.toElementsArray(this); eventsBucket.removeEvent(function(eventObj) { for (var i = 0; i < elements.length; i++) { if ((this === undefined || eventObj.target === elements[i]) && eventObj.selector === selector && eventObj.callback === callback) { return true; } } return false; }); }; return this; }; /** * @constructor * Processes 'arrive' events */ var ArriveEvents = function() { // Default options for 'arrive' event var arriveDefaultOptions = { fireOnAttributesModification: false, onceOnly: false, existing: false }; function getArriveObserverConfig(options) { var config = { attributes: false, childList: true, subtree: true }; if (options.fireOnAttributesModification) { config.attributes = true; } return config; } function onArriveMutation(mutations, registrationData) { mutations.forEach(function( mutation ) { var newNodes = mutation.addedNodes, targetNode = mutation.target, callbacksToBeCalled = [], node; // If new nodes are added if( newNodes !== null && newNodes.length > 0 ) { utils.checkChildNodesRecursively(newNodes, registrationData, nodeMatchFunc, callbacksToBeCalled); } else if (mutation.type === "attributes") { if (nodeMatchFunc(targetNode, registrationData, callbacksToBeCalled)) { callbacksToBeCalled.push({ callback: registrationData.callback, elem: targetNode }); } } utils.callCallbacks(callbacksToBeCalled, registrationData); }); } function nodeMatchFunc(node, registrationData, callbacksToBeCalled) { // check a single node to see if it matches the selector if (utils.matchesSelector(node, registrationData.selector)) { if(node._id === undefined) { node._id = arriveUniqueId++; } // make sure the arrive event is not already fired for the element if (registrationData.firedElems.indexOf(node._id) == -1) { registrationData.firedElems.push(node._id); return true; } } return false; } arriveEvents = new MutationEvents(getArriveObserverConfig, onArriveMutation); var mutationBindEvent = arriveEvents.bindEvent; // override bindEvent function arriveEvents.bindEvent = function(selector, options, callback) { if (typeof callback === "undefined") { callback = options; options = arriveDefaultOptions; } else { options = utils.mergeArrays(arriveDefaultOptions, options); } var elements = utils.toElementsArray(this); if (options.existing) { var existing = []; for (var i = 0; i < elements.length; i++) { var nodes = elements[i].querySelectorAll(selector); for (var j = 0; j < nodes.length; j++) { existing.push({ callback: callback, elem: nodes[j] }); } } // no need to bind event if the callback has to be fired only once and we have already found the element if (options.onceOnly && existing.length) { return callback.call(existing[0].elem, existing[0].elem); } setTimeout(utils.callCallbacks, 1, existing); } mutationBindEvent.call(this, selector, options, callback); }; return arriveEvents; }; /** * @constructor * Processes 'leave' events */ var LeaveEvents = function() { // Default options for 'leave' event var leaveDefaultOptions = {}; function getLeaveObserverConfig() { var config = { childList: true, subtree: true }; return config; } function onLeaveMutation(mutations, registrationData) { mutations.forEach(function( mutation ) { var removedNodes = mutation.removedNodes, callbacksToBeCalled = []; if( removedNodes !== null && removedNodes.length > 0 ) { utils.checkChildNodesRecursively(removedNodes, registrationData, nodeMatchFunc, callbacksToBeCalled); } utils.callCallbacks(callbacksToBeCalled, registrationData); }); } function nodeMatchFunc(node, registrationData) { return utils.matchesSelector(node, registrationData.selector); } leaveEvents = new MutationEvents(getLeaveObserverConfig, onLeaveMutation); var mutationBindEvent = leaveEvents.bindEvent; // override bindEvent function leaveEvents.bindEvent = function(selector, options, callback) { if (typeof callback === "undefined") { callback = options; options = leaveDefaultOptions; } else { options = utils.mergeArrays(leaveDefaultOptions, options); } mutationBindEvent.call(this, selector, options, callback); }; return leaveEvents; }; var arriveEvents = new ArriveEvents(), leaveEvents = new LeaveEvents(); function exposeUnbindApi(eventObj, exposeTo, funcName) { // expose unbind function with function overriding utils.addMethod(exposeTo, funcName, eventObj.unbindEvent); utils.addMethod(exposeTo, funcName, eventObj.unbindEventWithSelectorOrCallback); utils.addMethod(exposeTo, funcName, eventObj.unbindEventWithSelectorAndCallback); } /*** expose APIs ***/ function exposeApi(exposeTo) { exposeTo.arrive = arriveEvents.bindEvent; exposeUnbindApi(arriveEvents, exposeTo, "unbindArrive"); exposeTo.leave = leaveEvents.bindEvent; exposeUnbindApi(leaveEvents, exposeTo, "unbindLeave"); } exposeApi(HTMLElement.prototype); exposeApi(NodeList.prototype); exposeApi(HTMLCollection.prototype); exposeApi(HTMLDocument.prototype); exposeApi(Window.prototype); var Arrive = {}; // expose functions to unbind all arrive/leave events exposeUnbindApi(arriveEvents, Arrive, "unbindAllArrive"); exposeUnbindApi(leaveEvents, Arrive, "unbindAllLeave"); return Arrive; })(window, null, undefined); var ewww_webp_supported = false; // webp detection adapted from https://developers.google.com/speed/webp/faq#how_can_i_detect_browser_support_using_javascript function check_webp_feature(feature, callback) { if (ewww_webp_supported) { callback(ewww_webp_supported); return; } var kTestImages = { alpha: "UklGRkoAAABXRUJQVlA4WAoAAAAQAAAAAAAAAAAAQUxQSAwAAAARBxAR/Q9ERP8DAABWUDggGAAAABQBAJ0BKgEAAQAAAP4AAA3AAP7mtQAAAA==", animation: "UklGRlIAAABXRUJQVlA4WAoAAAASAAAAAAAAAAAAQU5JTQYAAAD/////AABBTk1GJgAAAAAAAAAAAAAAAAAAAGQAAABWUDhMDQAAAC8AAAAQBxAREYiI/gcA" }; var img = new Image(); img.onload = function () { ewww_webp_supported = (img.width > 0) && (img.height > 0); callback(ewww_webp_supported); }; img.onerror = function () { callback(false); }; img.src = "data:image/webp;base64," + kTestImages[feature]; } function ewwwLoadImages(ewww_webp_supported) { if (ewww_webp_supported) { var nggImages = document.querySelectorAll('.batch-image img, .image-wrapper a, .ngg-pro-masonry-item a, .ngg-galleria-offscreen-seo-wrapper a'); for (var i = 0, len = nggImages.length; i < len; i++){ ewwwAttr(nggImages[i], 'data-src', nggImages[i].getAttribute('data-webp')); ewwwAttr(nggImages[i], 'data-thumbnail', nggImages[i].getAttribute('data-webp-thumbnail')); } var wooImages = document.querySelectorAll('div.woocommerce-product-gallery__image'); for (var i = 0, len = wooImages.length; i < len; i++){ ewwwAttr(wooImages[i], 'data-thumb', wooImages[i].getAttribute('data-webp-thumb')); } } var videos = document.querySelectorAll('video'); for (var i = 0, len = videos.length; i < len; i++){ if (ewww_webp_supported) { ewwwAttr(videos[i], 'poster', videos[i].getAttribute('data-poster-webp')); } else { ewwwAttr(videos[i], 'poster', videos[i].getAttribute('data-poster-image')); } } var lazies = document.querySelectorAll('img.ewww_webp_lazy_load'); for (var i = 0, len = lazies.length; i < len; i++){ console.log('parsing an image: ' + lazies[i].getAttribute('data-src')); if (ewww_webp_supported) { console.log('webp good'); ewwwAttr(lazies[i], 'data-lazy-srcset', lazies[i].getAttribute('data-lazy-srcset-webp')); ewwwAttr(lazies[i], 'data-srcset', lazies[i].getAttribute('data-srcset-webp')); ewwwAttr(lazies[i], 'data-lazy-src', lazies[i].getAttribute('data-lazy-src-webp')); ewwwAttr(lazies[i], 'data-src', lazies[i].getAttribute('data-src-webp')); ewwwAttr(lazies[i], 'data-orig-file', lazies[i].getAttribute('data-webp-orig-file')); ewwwAttr(lazies[i], 'data-medium-file', lazies[i].getAttribute('data-webp-medium-file')); ewwwAttr(lazies[i], 'data-large-file', lazies[i].getAttribute('data-webp-large-file')); var jpsrcset = lazies[i].getAttribute('srcset'); if (jpsrcset != null && jpsrcset !== false && jpsrcset.includes('R0lGOD')) { ewwwAttr(lazies[i], 'src', lazies[i].getAttribute('data-lazy-src-webp')); } } lazies[i].className = lazies[i].className.replace(/\bewww_webp_lazy_load\b/, ''); } var elems = document.querySelectorAll('.ewww_webp'); for (var i = 0, len = elems.length; i < len; i++){ console.log('parsing an image: ' + elems[i].getAttribute('data-src')); if (ewww_webp_supported) { ewwwAttr(elems[i], 'srcset', elems[i].getAttribute('data-srcset-webp')); ewwwAttr(elems[i], 'src', elems[i].getAttribute('data-src-webp')); ewwwAttr(elems[i], 'data-orig-file', elems[i].getAttribute('data-webp-orig-file')); ewwwAttr(elems[i], 'data-medium-file', elems[i].getAttribute('data-webp-medium-file')); ewwwAttr(elems[i], 'data-large-file', elems[i].getAttribute('data-webp-large-file')); ewwwAttr(elems[i], 'data-large_image', elems[i].getAttribute('data-webp-large_image')); ewwwAttr(elems[i], 'data-src', elems[i].getAttribute('data-webp-src')); } else { ewwwAttr(elems[i], 'srcset', elems[i].getAttribute('data-srcset-img')); ewwwAttr(elems[i], 'src', elems[i].getAttribute('data-src-img')); } elems[i].className = elems[i].className.replace(/\bewww_webp\b/, 'ewww_webp_loaded'); } if (window.jQuery && jQuery.fn.isotope && jQuery.fn.imagesLoaded) { jQuery('.fusion-posts-container-infinite').imagesLoaded( function() { if ( jQuery( '.fusion-posts-container-infinite' ).hasClass( 'isotope' ) ) { jQuery( '.fusion-posts-container-infinite' ).isotope(); } }); jQuery('.fusion-portfolio:not(.fusion-recent-works) .fusion-portfolio-wrapper').imagesLoaded( function() { jQuery( '.fusion-portfolio:not(.fusion-recent-works) .fusion-portfolio-wrapper' ).isotope(); }); } } check_webp_feature('alpha', ewwwWebPInit); function ewwwWebPInit(ewww_webp_supported) { ewwwLoadImages(ewww_webp_supported); ewwwNggLoadGalleries(ewww_webp_supported); document.arrive('.ewww_webp', function() { ewwwLoadImages(ewww_webp_supported); }); document.arrive('.ewww_webp_lazy_load', function() { ewwwLoadImages(ewww_webp_supported); }); document.arrive('videos', function() { ewwwLoadImages(ewww_webp_supported); }); if (document.readyState == 'loading') { console.log('deferring ewwwJSONParserInit until DOMContentLoaded') document.addEventListener('DOMContentLoaded', ewwwJSONParserInit); } else { console.log(document.readyState); console.log('running JSON parsers post haste') if ( typeof galleries !== 'undefined' ) { console.log('galleries found, parsing') ewwwNggParseGalleries(ewww_webp_supported); } ewwwWooParseVariations(ewww_webp_supported); } } function ewwwAttr(elem, attr, value) { if (value != null && value !== false) { elem.setAttribute(attr, value); } } function ewwwJSONParserInit() { if ( typeof galleries !== 'undefined' ) { check_webp_feature('alpha', ewwwNggParseGalleries); } check_webp_feature('alpha', ewwwWooParseVariations); } function ewwwWooParseVariations(ewww_webp_supported) { if (!ewww_webp_supported) { return; } var elems = document.querySelectorAll('form.variations_form'); for (var i = 0, len = elems.length; i < len; i++){ var variations = elems[i].getAttribute('data-product_variations'); var variations_changed = false; try { variations = JSON.parse(variations); //console.log(variations); console.log('parsing WC variations'); for ( var num in variations ) { if (variations[ num ] !== undefined && variations[ num ].image !== undefined) { console.log(variations[num].image); if (variations[num].image.src_webp !== undefined) { variations[num].image.src = variations[num].image.src_webp; variations_changed = true; } if (variations[num].image.srcset_webp !== undefined) { variations[num].image.srcset = variations[num].image.srcset_webp; variations_changed = true; } if (variations[num].image.full_src_webp !== undefined) { variations[num].image.full_src = variations[num].image.full_src_webp; variations_changed = true; } if (variations[num].image.gallery_thumbnail_src_webp !== undefined) { variations[num].image.gallery_thumbnail_src = variations[num].image.gallery_thumbnail_src_webp; variations_changed = true; } if (variations[num].image.thumb_src_webp !== undefined) { variations[num].image.thumb_src = variations[num].image.thumb_src_webp; variations_changed = true; } } } if (variations_changed) { ewwwAttr(elems[i], 'data-product_variations', JSON.stringify(variations)); } } catch (err) { console.log(err); console.log(response); } } } function ewwwNggParseGalleries(ewww_webp_supported) { if (ewww_webp_supported) { for(var galleryIndex in galleries) { var gallery = galleries[galleryIndex]; galleries[galleryIndex].images_list = ewwwNggParseImageList(gallery.images_list); } } } function ewwwNggLoadGalleries(ewww_webp_supported) { if (ewww_webp_supported) { document.addEventListener('ngg.galleria.themeadded', function(event, themename){ window.ngg_galleria._create_backup = window.ngg_galleria.create; window.ngg_galleria.create = function(gallery_parent, themename) { var gallery_id = $(gallery_parent).data('id'); galleries['gallery_' + gallery_id].images_list = ewwwNggParseImageList(galleries['gallery_' + gallery_id].images_list); return window.ngg_galleria._create_backup(gallery_parent, themename); }; }); } } function ewwwNggParseImageList(images_list) { console.log('parsing gallery images'); for(var nggIndex in images_list) { var nggImage = images_list[nggIndex]; if (typeof nggImage['image-webp'] !== typeof undefined) { images_list[nggIndex]['image'] = nggImage['image-webp']; delete images_list[nggIndex]['image-webp']; } if (typeof nggImage['thumb-webp'] !== typeof undefined) { images_list[nggIndex]['thumb'] = nggImage['thumb-webp']; delete images_list[nggIndex]['thumb-webp']; } if (typeof nggImage['full_image_webp'] !== typeof undefined) { images_list[nggIndex]['full_image'] = nggImage['full_image_webp']; delete images_list[nggIndex]['full_image_webp']; } if (typeof nggImage['srcsets'] !== typeof undefined) { for(var nggSrcsetIndex in nggImage['srcsets']) { nggSrcset = nggImage['srcsets'][nggSrcsetIndex]; if (typeof nggImage['srcsets'][nggSrcsetIndex + '-webp'] !== typeof undefined) { images_list[nggIndex]['srcsets'][nggSrcsetIndex] = nggImage['srcsets'][nggSrcsetIndex + '-webp']; delete images_list[nggIndex]['srcsets'][nggSrcsetIndex + '-webp']; } } } if (typeof nggImage['full_srcsets'] !== typeof undefined) { for(var nggFSrcsetIndex in nggImage['full_srcsets']) { nggFSrcset = nggImage['full_srcsets'][nggFSrcsetIndex]; if (typeof nggImage['full_srcsets'][nggFSrcsetIndex + '-webp'] !== typeof undefined) { images_list[nggIndex]['full_srcsets'][nggFSrcsetIndex] = nggImage['full_srcsets'][nggFSrcsetIndex + '-webp']; delete images_list[nggIndex]['full_srcsets'][nggFSrcsetIndex + '-webp']; } } } } return images_list; }