%PDF- %PDF-
Direktori : /home/tradesc/www/relax/wp-content/plugins/ewww-image-optimizer/includes/ |
Current File : /home/tradesc/www/relax/wp-content/plugins/ewww-image-optimizer/includes/lazysizes-post.js |
(function(window, factory) { var globalInstall = function(){ factory(window.lazySizes); window.removeEventListener('lazyunveilread', globalInstall, true); }; factory = factory.bind(null, window, window.document); if(typeof module == 'object' && module.exports){ factory(require('lazysizes')); } else if (typeof define == 'function' && define.amd) { define(['lazysizes'], factory); } else if(window.lazySizes) { globalInstall(); } else { window.addEventListener('lazyunveilread', globalInstall, true); } }(window, function(window, document, lazySizes) { /*jshint eqnull:true */ 'use strict'; var regBgUrlEscape; var autosizedElems = []; if(document.addEventListener){ regBgUrlEscape = /\(|\)|\s|'/; addEventListener('lazybeforeunveil', function(e){ if(e.detail.instance != lazySizes){return;} var bg, bgWebP; if(!e.defaultPrevented) { if(e.target.preload == 'none'){ e.target.preload = 'auto'; } // handle data-back (so as not to conflict with the stock data-bg) bg = e.target.getAttribute('data-back'); if (bg) { if(ewww_webp_supported) { console.log('checking for data-back-webp'); bgWebP = e.target.getAttribute('data-back-webp'); if (bgWebP) { console.log('replacing data-back with data-back-webp'); bg = bgWebP; } } var dPR = (window.devicePixelRatio || 1); var targetWidth = Math.round(e.target.offsetWidth * dPR); var targetHeight = Math.round(e.target.offsetHeight * dPR); if ( 0 === bg.search(/\[/) ) { } else if (!shouldAutoScale(e.target)){ } else if (lazySizes.hC(e.target,'wp-block-cover')) { console.log('found wp-block-cover with data-back'); if (lazySizes.hC(e.target,'has-parallax')) { console.log('also has-parallax with data-back'); targetWidth = Math.round(window.screen.width * dPR); targetHeight = Math.round(window.screen.height * dPR); } else if (targetHeight<300) { targetHeight = 430; } bg = constrainSrc(bg,targetWidth,targetHeight,'bg-cover'); } else if (lazySizes.hC(e.target,'cover-image')){ console.log('found .cover-image with data-back'); bg = constrainSrc(bg,targetWidth,targetHeight,'bg-cover'); } else if (lazySizes.hC(e.target,'elementor-bg')){ console.log('found elementor-bg with data-back'); bg = constrainSrc(bg,targetWidth,targetHeight,'bg-cover'); } else if (lazySizes.hC(e.target,'et_parallax_bg')){ console.log('found et_parallax_bg with data-back'); bg = constrainSrc(bg,targetWidth,targetHeight,'bg-cover'); } else if (lazySizes.hC(e.target,'bg-image-crop')){ console.log('found bg-image-crop with data-back'); bg = constrainSrc(bg,targetWidth,targetHeight,'bg-cover'); } else { console.log('found other data-back'); bg = constrainSrc(bg,targetWidth,targetHeight,'bg'); } if ( e.target.style.backgroundImage && -1 === e.target.style.backgroundImage.search(/^initial/) ) { // Convert JSON for multiple URLs. if ( 0 === bg.search(/\[/) ) { console.log('multiple URLs to append'); bg = JSON.parse(bg); bg.forEach( function(bg_url){ bg_url = (regBgUrlEscape.test(bg_url) ? JSON.stringify(bg_url) : bg_url ); } ); bg = 'url("' + bg.join('"), url("') + '"'; var new_bg = e.target.style.backgroundImage + ', ' + bg; console.log('setting .backgroundImage: ' + new_bg ); e.target.style.backgroundImage = new_bg; } else { console.log( 'appending bg url: ' + e.target.style.backgroundImage + ', url(' + (regBgUrlEscape.test(bg) ? JSON.stringify(bg) : bg ) + ')' ); e.target.style.backgroundImage = e.target.style.backgroundImage + ', url("' + (regBgUrlEscape.test(bg) ? JSON.stringify(bg) : bg ) + '")'; } } else { // Convert JSON for multiple URLs. if ( 0 === bg.search(/\[/) ) { console.log('multiple URLs to insert'); bg = JSON.parse(bg); bg.forEach( function(bg_url){ bg_url = (regBgUrlEscape.test(bg_url) ? JSON.stringify(bg_url) : bg_url ); } ); bg = 'url("' + bg.join('"), url("') + '"'; console.log('setting .backgroundImage: ' + bg ); e.target.style.backgroundImage = bg; } else { console.log('setting .backgroundImage: ' + 'url(' + (regBgUrlEscape.test(bg) ? JSON.stringify(bg) : bg ) + ')'); e.target.style.backgroundImage = 'url(' + (regBgUrlEscape.test(bg) ? JSON.stringify(bg) : bg ) + ')'; } } } } }, false); } var shouldAutoScale = function(target){ if (eio_lazy_vars.skip_autoscale == 1) { console.log('autoscale disabled globally'); return false; } var currentNode = target; for (var i = 0; i <= 7; i++) { if (currentNode.hasAttributes()) { var attrs = currentNode.attributes var regNoScale = /skip-autoscale/; for (var i = attrs.length - 1; i >= 0; i--) { if (regNoScale.test(attrs[i].name)) { console.log('autoscale disabled by attr'); return false; } if (regNoScale.test(attrs[i].value)) { console.log('autoscale disabled by attr value'); return false; } } } if (currentNode.parentNode && currentNode.parentNode.nodeType === 1 && currentNode.parentNode.hasAttributes) { currentNode = currentNode.parentNode; } else { break; } } return true; }; var constrainSrc = function(url,objectWidth,objectHeight,objectType,upScale = false){ if (url===null){ return url; } console.log('constrain ' + url + ' to ' + objectWidth + 'x' + objectHeight + ' with type ' + objectType); var regW = /w=(\d+)/; var regFit = /fit=(\d+),(\d+)/; var regResize = /resize=(\d+),(\d+)/; var regSVG = /\.svg(\?.+)?$/; var decUrl = decodeURIComponent(url); if (regSVG.exec(decUrl)){ return url; } console.log('domain to test: ' + eio_lazy_vars.exactdn_domain); if (url.search('\\?') > 0 && url.search(eio_lazy_vars.exactdn_domain) > 0){ console.log('domain matches URL with a ?'); var resultResize = regResize.exec(decUrl); if(resultResize && (objectWidth < resultResize[1] || upScale)){ if('img-w'===objectType){ console.log('resize param found, replacing in ' + objectType); return decUrl.replace(regResize, 'w=' + objectWidth ); } if('img-h'===objectType){ console.log('resize param found, replacing in ' + objectType); return decUrl.replace(regResize, 'h=' + objectHeight ); } console.log('resize param found, replacing'); return decUrl.replace(regResize, 'resize=' + objectWidth + ',' + objectHeight); } var resultW = regW.exec(url); if(resultW && (objectWidth <= resultW[1] || upScale)){ if('img-h'===objectType){ console.log('w param found, replacing in ' + objectType); return decUrl.replace(regW, 'h=' + objectHeight ); } if('bg-cover'===objectType || 'img-crop'===objectType){ var diff = Math.abs(resultW[1] - objectWidth); if ( diff > 20 || objectHeight < 1080 ) { console.log('w param found, replacing in ' + objectType); return url.replace(regW, 'resize=' + objectWidth + ',' + objectHeight ); } console.log('w param found, but only ' + diff + ' pixels off, ignoring'); return url; } console.log('w param found, replacing'); return url.replace(regW, 'w=' + objectWidth); } var resultFit = regFit.exec(decUrl); if(resultFit && (objectWidth < resultFit[1] || upScale)){ if('bg-cover'===objectType || 'img-crop'===objectType){ var wDiff = Math.abs(resultFit[1] - objectWidth); var hDiff = Math.abs(resultFit[2] - objectHeight); if ( wDiff > 20 || hDiff > 20 ) { console.log('fit param found, replacing in ' + objectType); return url.replace(regW, 'resize=' + objectWidth + ',' + objectHeight ); } console.log('fit param found, but only w' + wDiff + '/h' + hDiff + ' pixels off, ignoring'); return url; } if('img-w'===objectType){ console.log('fit param found, replacing in ' + objectType); return decUrl.replace(regFit, 'w=' + objectWidth ); } if('img-h'===objectType){ console.log('fit param found, replacing in ' + objectType); return decUrl.replace(regFit, 'h=' + objectHeight ); } console.log('fit param found, replacing'); return decUrl.replace(regFit, 'fit=' + objectWidth + ',' + objectHeight); } if(!resultW && !resultFit && !resultResize){ console.log('no param found, appending'); if('img'===objectType){ console.log('for ' + objectType); return url + '&fit=' + objectWidth + ',' + objectHeight; } if('bg-cover'===objectType || 'img-crop'===objectType){ console.log('for ' + objectType); return url + '&resize=' + objectWidth + ',' + objectHeight; } if('img-h'===objectType || objectHeight>objectWidth){ console.log('img-h or fallback height>width, using h param'); return url + '&h=' + objectHeight; } console.log('fallback using w param'); return url + '&w=' + objectWidth; } } if (url.search('\\?') == -1 && url.search(eio_lazy_vars.exactdn_domain) > 0){ console.log('domain matches URL without a ?, appending query string'); if('img'===objectType){ console.log('for ' + objectType); return url + '?fit=' + objectWidth + ',' + objectHeight; } if('bg-cover'===objectType || 'img-crop'===objectType){ console.log('for ' + objectType); return url + '?resize=' + objectWidth + ',' + objectHeight; } if('img-h'===objectType || objectHeight>objectWidth){ console.log('img-h or fallback height>width, using h param'); return url + '?h=' + objectHeight; } console.log('fallback using w param'); return url + '?w=' + objectWidth; } console.log('boo, just using same url'); return url; }; var getImgType = function(elem){ if ( lazySizes.hC(elem,'et_pb_jt_filterable_grid_item_image') || lazySizes.hC(elem,'ss-foreground-image') || lazySizes.hC(elem,'img-crop') ) { console.log('img that needs a hard crop'); return 'img-crop'; } else if ( lazySizes.hC(elem,'object-cover') && ( lazySizes.hC(elem,'object-top') || lazySizes.hC(elem,'object-bottom') ) ) { console.log('cover img that needs a width scale'); return 'img-w'; } else if ( lazySizes.hC(elem,'object-cover') && ( lazySizes.hC(elem,'object-left') || lazySizes.hC(elem,'object-right') ) ) { console.log('cover img that needs a height scale'); return 'img-h'; } else if ( lazySizes.hC(elem,'ct-image') && lazySizes.hC(elem,'object-cover') ) { console.log('Oxygen cover img that needs a hard crop'); return 'img-crop'; } else if ( ! elem.getAttribute('data-srcset') && ! elem.srcset && elem.offsetHeight > elem.offsetWidth && getAspectRatio(elem) > 1 ) { console.log('non-srcset img with portrait display, landscape in real life'); return 'img-crop'; } console.log('plain old img, constraining'); return 'img'; }; var getDimensionsFromURL = function(url){ var regDims = /-(\d+)x(\d+)\./; var resultDims = regDims.exec(url); if (resultDims && resultDims[1] > 1 && resultDims[2] > 1) { return {w:resultDims[1],h:resultDims[2]}; } return {w:0,h:0}; }; var getRealDimensionsFromImg = function(img){ var realWidth = img.getAttribute('data-eio-rwidth'); var realHeight = img.getAttribute('data-eio-rheight'); if (realWidth > 1 && realHeight > 1) { return {w:realWidth,h:realHeight}; } return {w:0,h:0}; }; var getSrcsetDims = function(img) { var srcSet; if (img.srcset){ srcSet = img.srcset.split(','); } else { var srcSetAttr = img.getAttribute('data-srcset'); if (srcSetAttr){ srcSet = srcSetAttr.split(','); } } if (srcSet){ var i = 0; var len = srcSet.length; if (len){ for (; i < len; i++){ var src = srcSet[i].trim().split(' '); if (src[0].length) { var nextDims = getDimensionsFromURL(src[0]); if (nextDims.w && nextDims.h){ var srcSetDims = nextDims; } } } if (srcSetDims.w && srcSetDims.h){ return srcSetDims; } } } return {w:0,h:0}; } var getAspectRatio = function(img){ var width = img.getAttribute('width'); var height = img.getAttribute('height'); if (width > 1 && height > 1){ console.log('found dims ' + width + 'x' + height + ', returning ' + width/height); return width / height; } var src = false; if (img.src && img.src.search('http') > -1) { src = img.src; } if (!src) { src = img.getAttribute('data-src'); } if (src){ var urlDims = getDimensionsFromURL(src); if (urlDims.w && urlDims.h) { console.log('found dims from URL: ' + urlDims.w + 'x' + urlDims.h); return urlDims.w / urlDims.h; } } var realDims = getRealDimensionsFromImg(img); if (realDims.w && realDims.h){ console.log('found dims from eio-attrs: ' + realDims.w + 'x' + realDims.h); return realDims.w / realDims.h; } var srcSetDims = getSrcsetDims(img); if (srcSetDims.w && srcSetDims.h){ console.log('largest found dims from srcset: ' + srcSetDims.w + 'x' + srcSetDims.h); return srcSetDims.w / srcSetDims.h; } return 0; } var updateImgElem = function(target,upScale=false){ var dPR = (window.devicePixelRatio || 1); var targetWidth = Math.round(target.offsetWidth * dPR); var targetHeight = Math.round(target.offsetHeight * dPR); var src = target.getAttribute('data-src'); var webpsrc = target.getAttribute('data-src-webp'); if(ewww_webp_supported && webpsrc && -1 == src.search('webp=1') && !upScale){ console.log('using data-src-webp'); src = webpsrc; } if (!shouldAutoScale(target)){ return; } var imgType = getImgType(target); var newSrc = constrainSrc(src,targetWidth,targetHeight,imgType,upScale); if (newSrc && src != newSrc){ console.log('new src: ' + newSrc); if (upScale){ target.setAttribute('src', newSrc); } target.setAttribute('data-src', newSrc); } }; document.addEventListener('lazybeforesizes', function(e){ var src = e.target.getAttribute('data-src'); console.log('auto-sizing ' + src + ' to: ' + e.detail.width); var imgAspect = getAspectRatio(e.target); if (e.target.clientHeight > 1 && imgAspect) { var minimum_width = Math.ceil(imgAspect * e.target.clientHeight); console.log('minimum_width = ' + minimum_width); if (e.detail.width+2 < minimum_width) { e.detail.width = minimum_width; } } if (e.target._lazysizesWidth === undefined) { return; } console.log('previous width was ' + e.target._lazysizesWidth); if (e.detail.width < e.target._lazysizesWidth) { console.log('no way! ' + e.detail.width + ' is smaller than ' + e.target._lazysizesWidth); e.detail.width = e.target._lazysizesWidth; } }); document.addEventListener('lazybeforeunveil', function(e){ var target = e.target; console.log('loading an image'); console.log(target); var srcset = target.getAttribute('data-srcset'); if (target.naturalWidth && ! srcset) { console.log('natural width of ' + target.getAttribute('src') + ' is ' + target.naturalWidth); console.log('we have an image with no srcset'); if ((target.naturalWidth > 1) && (target.naturalHeight > 1)) { // For each image with a natural width which isn't // a 1x1 image, check its size. var dPR = (window.devicePixelRatio || 1); var physicalWidth = target.naturalWidth; var physicalHeight = target.naturalHeight; var realDims = getRealDimensionsFromImg(target); if (realDims.w && realDims.w > physicalWidth) { console.log( 'using ' + realDims.w + 'w instead of ' + physicalWidth + 'w and ' + realDims.h + 'h instead of ' + physicalHeight + 'h from data-eio-r*') physicalWidth = realDims.w; physicalHeight = realDims.h; } var wrongWidth = (target.clientWidth && (target.clientWidth * 1.25 * dPR < physicalWidth)); var wrongHeight = (target.clientHeight && (target.clientHeight * 1.25 * dPR < physicalHeight)); console.log('displayed at ' + Math.round(target.clientWidth * dPR) + 'w x ' + Math.round(target.clientHeight * dPR) + 'h, natural/physical is ' + physicalWidth + 'w x ' + physicalHeight + 'h!'); console.log('the data-src: ' + target.getAttribute('data-src') ); if (wrongWidth || wrongHeight) { updateImgElem(target); } } } if(ewww_webp_supported) { console.log('webp supported'); //console.log(srcset); if (srcset) { console.log('srcset available'); var webpsrcset = target.getAttribute('data-srcset-webp'); if(webpsrcset){ console.log('replacing data-srcset with data-srcset-webp'); target.setAttribute('data-srcset', webpsrcset); } } var webpsrc = target.getAttribute('data-src-webp'); if(!webpsrc){ console.log('no data-src-webp attr'); return; } console.log('replacing data-src with data-src-webp'); target.setAttribute('data-src', webpsrc); } }); // Based on http://modernjavascript.blogspot.de/2013/08/building-better-debounce.html var debounce = function(func) { var timeout, timestamp; var wait = 99; var run = function(){ timeout = null; func(); }; var later = function() { var last = Date.now() - timestamp; if (last < wait) { setTimeout(later, wait - last); } else { (window.requestIdleCallback || run)(run); } }; return function() { timestamp = Date.now(); if (!timeout) { timeout = setTimeout(later, wait); } }; }; var recheckLazyElements = function(event = false) { console.log('rechecking elements:'); if (event.type) { console.log(event.type); if ('load'===event.type) { lazySizes.autoSizer.checkElems(); } } var dPR = (window.devicePixelRatio || 1); var autosizedElems = document.getElementsByClassName(lazySizes.cfg.loadedClass); var i; var len = autosizedElems.length; if(len){ i = 0; for(; i < len; i++){ var autosizedElem = autosizedElems[i]; if (autosizedElem.src && ! autosizedElem.srcset && autosizedElem.naturalWidth > 1 && autosizedElem.naturalHeight > 1 && autosizedElem.clientWidth > 1 && autosizedElem.clientHeight > 1){ console.log(autosizedElem); console.log('natural width of ' + autosizedElem.src + ' is ' + autosizedElem.naturalWidth); // For each image with a natural width which isn't // a 1x1 image, check its size. var physicalWidth = autosizedElem.naturalWidth; var physicalHeight = autosizedElem.naturalHeight; var maxWidth = window.innerWidth; var maxHeight = window.innerHeight; var realDims = getRealDimensionsFromImg(autosizedElem); var urlDims = getDimensionsFromURL(autosizedElem.src); if (realDims.w) { maxWidth = realDims.w; } else if (urlDims.w) { maxWidth = urlDims.w; } if (realDims.h) { maxHeight = realDims.h; } else if (urlDims.h) { maxHeight = urlDims.h; } console.log( 'max image size is ' + maxWidth + 'w, ' + maxHeight + 'h'); // For upscaling, the goal is to get to 1x dPR, we won't waste bandwidth on retina/2x images. var desiredWidth = autosizedElem.clientWidth; var desiredHeight = autosizedElem.clientHeight; var wrongWidth = (desiredWidth > physicalWidth * 1.1 && maxWidth >= desiredWidth); var wrongHeight = (desiredHeight > physicalHeight * 1.1 && maxHeight >= desiredHeight); console.log('displayed at ' + Math.round(desiredWidth) + 'w x ' + Math.round(desiredHeight) + 'h, natural/physical is ' + physicalWidth + 'w x ' + physicalHeight + 'h'); if (wrongWidth || wrongHeight) { console.log('requesting upsize'); updateImgElem(autosizedElem,true); } } } } }; var debouncedRecheckElements = debounce(recheckLazyElements); addEventListener('load', recheckLazyElements); addEventListener('resize', debouncedRecheckElements); setTimeout(recheckLazyElements, 20000); }));