jellyfin-web/dashboard-ui/bower_components/emby-webcomponents/images/imagehelper.js

define(["lazyLoader","imageFetcher","layoutManager","browser","appSettings","require","css!./style"],function(lazyLoader,imageFetcher,layoutManager,browser,appSettings,require){"use strict";function fillImage(elem,source,enableEffects){source||(source=elem.getAttribute("data-src")),source&&fillImageElement(elem,source,enableEffects)}function fillImageElement(elem,source,enableEffects){imageFetcher.loadImage(elem,source).then(function(){var fillingVibrant=fillVibrant(elem,source);!enableFade||layoutManager.tv||enableEffects===!1||fillingVibrant||fadeIn(elem),elem.removeAttribute("data-src")})}function fillVibrant(img,url,canvas,canvasContext){var vibrantElement=img.getAttribute("data-vibrant");return!!vibrantElement&&(window.Vibrant?(fillVibrantOnLoaded(img,url,vibrantElement,canvas,canvasContext),!0):(require(["vibrant"],function(){fillVibrantOnLoaded(img,url,vibrantElement,canvas,canvasContext)}),!0))}function fillVibrantOnLoaded(img,url,vibrantElement){vibrantElement=document.getElementById(vibrantElement),vibrantElement&&requestIdleCallback(function(){getVibrantInfoFromElement(img,url).then(function(vibrantInfo){var swatch=vibrantInfo.split("|");if(swatch.length){var index=0;vibrantElement.style.backgroundColor=swatch[index],vibrantElement.style.color=swatch[index+1]}})})}function getVibrantInfoFromElement(elem,url){return new Promise(function(resolve,reject){require(["vibrant"],function(){if("IMG"===elem.tagName)return void resolve(getVibrantInfo(elem,url));var img=new Image;img.onload=function(){resolve(getVibrantInfo(img,url))},img.src=url})})}function getSettingsKey(url){var parts=url.split("://");url=parts[parts.length-1],url=url.substring(url.indexOf("/")+1),url=url.split("?")[0];var cacheKey="vibrant31";return cacheKey+url}function getCachedVibrantInfo(url){return appSettings.get(getSettingsKey(url))}function getVibrantInfo(img,url){var value=getCachedVibrantInfo(url);if(value)return value;var vibrant=new Vibrant(img),swatches=vibrant.swatches();value="";var swatch=swatches.DarkVibrant;return value+=getSwatchString(swatch),appSettings.set(getSettingsKey(url),value),value}function getSwatchString(swatch){return swatch?swatch.getHex()+"|"+swatch.getBodyTextColor()+"|"+swatch.getTitleTextColor():"||"}function fadeIn(elem){var cssClass=layoutManager.tv?"lazy-image-fadein-fast":"lazy-image-fadein";elem.classList.add(cssClass)}function lazyChildren(elem){lazyLoader.lazyChildren(elem,fillImage)}function getPrimaryImageAspectRatio(items){for(var values=[],i=0,length=items.length;i<length;i++){var ratio=items[i].PrimaryImageAspectRatio||0;ratio&&(values[values.length]=ratio)}if(!values.length)return null;values.sort(function(a,b){return a-b});var result,half=Math.floor(values.length/2);result=values.length%2?values[half]:(values[half-1]+values[half])/2;var aspect2x3=2/3;if(Math.abs(aspect2x3-result)<=.15)return aspect2x3;var aspect16x9=16/9;if(Math.abs(aspect16x9-result)<=.2)return aspect16x9;if(Math.abs(1-result)<=.15)return 1;var aspect4x3=4/3;return Math.abs(aspect4x3-result)<=.15?aspect4x3:result}function fillImages(elems){for(var i=0,length=elems.length;i<length;i++){var elem=elems[0];fillImage(elem)}}var requestIdleCallback=window.requestIdleCallback||function(fn){fn()},self={},enableFade=!browser.slow;return self.fillImages=fillImages,self.lazyImage=fillImage,self.lazyChildren=lazyChildren,self.getPrimaryImageAspectRatio=getPrimaryImageAspectRatio,self.getCachedVibrantInfo=getCachedVibrantInfo,self.getVibrantInfoFromElement=getVibrantInfoFromElement,self});