Website/slides/cse662fa2017/2017-09-01-FunctionalDataStructures/assets/player/TextureManager.js

var KNStaticAssets={};KNStaticAssets["KNTransitionSwoosh_Shadow.png"]=new Image();KNStaticAssets["KNTransitionSwoosh_Shadow.png"].src=static_url("KNTransitionSwoosh_Shadow.png");KNStaticAssets["KNTransitionSlide_Black.png"]=new Image();KNStaticAssets["KNTransitionSlide_Black.png"].src=static_url("KNTransitionSlide_Black.png");var TextureManager=Class.create({initialize:function(a){this.script=null;this.showUrl=a;this.slideCache={};this.sceneDidLoadCallbackHandler=null;this.viewScale=1;document.observe(kScriptDidDownloadEvent,(function(b){this.handleScriptDidDownloadEvent(b)}).bind(this),false)},setSceneDidLoadCallbackHandler:function(a,b){this.sceneDidLoadCallbackHandler={handler:a,sceneIndex:b}},processTextureDidLoadCallback:function(d,b){if(this.sceneDidLoadCallbackHandler==null){return}var c=this.sceneDidLoadCallbackHandler.sceneIndex;var a=this.script.slideIndexFromSceneIndexLookup[c];if(a!=b){return}if(this.isSlidePreloaded(b)){this.callSceneDidLoadCallback();setTimeout(function(){this.destroyPDFDocument(b)}.bind(this),5000)}},destroyPDFDocument:function(c){var b=this.slideCache[c];if(b){var a=b.pdf;if(a){a.destroy();delete this.slideCache[c].pdf}}},processSlideDidLoadCallback:function(b){if(this.sceneDidLoadCallbackHandler==null){return}var c=this.sceneDidLoadCallbackHandler.sceneIndex;var a=this.script.slideIndexFromSceneIndexLookup[c];if(a!=b){return}this.callSceneDidLoadCallback()},processSceneDidLoadCallback:function(a){if(this.sceneDidLoadCallbackHandler&&a===this.sceneDidLoadCallbackHandler.sceneIndex&&this.isScenePreloaded(a)){this.callSceneDidLoadCallback()}},callSceneDidLoadCallback:function(){this.sceneDidLoadCallbackHandler.handler();this.sceneDidLoadCallbackHandler=null},loadScene:function(c,a){if(c<0||c>this.script.numScenes){return}if(a){this.setSceneDidLoadCallbackHandler(a,c)}var b=this.script.slideIndexFromSceneIndexLookup[c];if(usePDF){this.requestPdfDocument(b)}else{this.requestSlideSvgmap(b)}},preloadScenes:function(a){for(var c in a){var b=this.script.slideIndexFromSceneIndexLookup[c];if(b==null){continue}if(this.slideCache.hasOwnProperty(b)===false){this.loadScene(c)}}},isSlidePreloaded:function(b){var a=false;if(this.slideCache[b]){a=true;for(var c in this.slideCache[b].textureRequests){if(this.slideCache[b].textureRequests[c]===false){a=false;break}}}return a},isScenePreloaded:function(c){var b=this.script.slideIndexFromSceneIndexLookup[c];var a=this.isSlidePreloaded(b);return a},handleScriptDidDownloadEvent:function(a){this.script=a.memo.script;this.delegate=a.memo.delegate},requestPdfDocument:function(g){if(!this.slideCache[g]){this.slideCache[g]={textureAssets:{},textureRequests:{},pdf:null}}var f=this.script.slideList[g];if(!this.slideCache[g]["pdf"]){var d=this.script.slides[f];var i=d.assets;for(var a in i){var e=i[a];if(e.type==="texture"){this.slideCache[g].textureRequests[a]=false}}}else{if(this.isSlidePreloaded(g)){this.processSlideDidLoadCallback(g)}return}var b=this.showUrl+f+"/assets/"+f+".pdf";var c={slideId:f,slideIndex:g};if(window.location.protocol==="file:"){b=b+"p";if(window.local_pdf==null||window.local_pdf==undefined){window.local_pdf=function(j){this.handleRequestLocalPdfCallback(j)}.bind(this)}var h=document.createElement("script");h.setAttribute("src",b);document.head.appendChild(h)}else{PDFJS.getDocument(b).then(this.handleRequestPdfDocumentCompleted.bind(this,c))}},handleRequestLocalPdfCallback:function(b){var a=b.slide;var d=this.script.slideList.indexOf(a);var e=atob(b.pdf);var c={slideId:a,slideIndex:d};PDFJS.getDocument({data:e}).then(this.handleRequestPdfDocumentCompleted.bind(this,c))},handleRequestPdfDocumentCompleted:function(d,b){var i=d.slideId;var j=d.slideIndex;var f=this.script.slides[i];var l=f.assets;this.slideCache[j]["pdf"]=b;for(var a in l){var h=l[a];if(h.type!=="texture"){continue}var g=this.urlForTexture(a,i);var m=/(?:\.([^.]+))?$/;var c=m.exec(g)[1];if(c.toLowerCase()==="pdf"){var k=h.index+1;b.getPage(k).then(this.handleRequestPdfPageCompleted.bind(this,a,j))}else{var e=new Image();Event.observe(e,"load",this.handleImageOnloadEvent.bind(this,a,j));e.src=g}}},handleRequestPdfPageCompleted:function(a,i,h){var g=h.getViewport(pdfScaleFactor);var d=document.createElement("canvas");var c=d.getContext("2d");d.height=g.height;d.width=g.width;var e={canvasContext:c,viewport:g};var f=this;var b=h.render(e);var j=b._internalRenderTask.callback;b._internalRenderTask.callback=function(k){j.call(this,k);f.slideCache[i].textureAssets[a]=d;f.slideCache[i].textureRequests[a]=true;f.processTextureDidLoadCallback(a,i)}},requestSlideSvgmap:function(g){if(!this.slideCache[g]){this.slideCache[g]={};this.slideCache[g].textureAssets={};this.slideCache[g].textureRequests={}}var f=this.script.slideList[g];if(!this.slideCache[g]["svgmap"]){var d=this.script.slides[f];var i=d.assets;for(var a in i){var e=i[a];if(e.type==="texture"){this.slideCache[g].textureRequests[a]=false}}}else{if(this.isSlidePreloaded(g)){this.processSlideDidLoadCallback(g)}return}var c=this.showUrl+f+"/assets/"+f+".svgmap";if(window.location.protocol==="file:"){c=c+"p";if(window.svgmap==null||window.svgmap==undefined){window.svgmap=this.handleRequestSlideSvgmapCompleted.bind(this,null,true)}var h=document.createElement("script");h.setAttribute("src",c);document.head.appendChild(h)}else{var b={slideId:f,slideIndex:g};new Ajax.Request(c,{method:"get",onSuccess:this.handleRequestSlideSvgmapCompleted.bind(this,b,false)})}},handleRequestSlideSvgmapCompleted:function(n,l,f){var d;var a;if(l){d=f.slide;a=f.svg}else{d=n.slideId;a=JSON.parse(f.responseText)}var o=this.script.slideList.indexOf(d);var b=this.script.slides[d];var e=b.assets;this.slideCache[o]["svgmap"]=a;for(var r in e){var j=e[r];if(j.type!=="texture"){continue}var h=this.urlForTexture(r,d);var m=h.split("/");var g=m.length;var c=m[g-1];var p=c.split(".");var i=p[p.length-1];if(i==="svgmap"){var k=a[j.index];var n={textureId:r,slideId:d,slideIndex:o};this.handleFetchCompleted(n,k)}else{var q=new Image();Event.observe(q,"load",this.handleImageOnloadEvent.bind(this,r,o));q.src=h}}},handleFetchCompleted:function(q,k){var a=this.viewScale;var s=q.textureId;var b=q.slideId;var r=q.slideIndex;var c=new DOMParser();var l=this.showUrl+b+"/assets/";var h=c.parseFromString(k,"text/xml");var g=h.documentElement.getAttribute("viewBox").split(" ");var f=g[2];var m=g[3];var d=h.getElementsByTagName("image");for(var n=0,e=d.length;n<e;n++){var p=d[n];var o=p.getAttributeNS("http://www.w3.org/1999/xlink","href");p.setAttributeNS("http://www.w3.org/1999/xlink","href",l+o)}var j=document.importNode(h.documentElement,true);j.setAttributeNS("http://www.w3.org/2000/svg","width",f);j.setAttributeNS("http://www.w3.org/2000/svg","height",m);this.slideCache[r].textureAssets[s]=j;this.slideCache[r].textureRequests[s]=true;this.processTextureDidLoadCallback(s,r)},handleImageOnloadEvent:function(d,c,b){b=b||window.event;var a=b.target||b.srcElement;this.slideCache[c].textureAssets[d]=a;this.slideCache[c].textureRequests[d]=true;this.processTextureDidLoadCallback(d,c)},getTextureObject:function(d,c){var a;var b=this.script.slideIndexFromSceneIndexLookup[d];a=this.slideCache[b].textureAssets[c];return a},getTextureInfo:function(e,d){var c=this.script.slideIndexFromSceneIndexLookup[e];if(c==null){return null}var a=this.script.slideList[c];var b=this.script.slides[a].assets[d];return b},getTextureUrl:function(d,c){var b=this.script.slideIndexFromSceneIndexLookup[d];if(b==null){return null}var a=this.script.slideList[b];return this.urlForTexture(c,a)},getMovieUrl:function(d,c){var b=this.script.slideIndexFromSceneIndexLookup[d];if(b==null){return null}var a=this.script.slideList[b];return this.urlForAsset(c,a)},urlForAsset:function(e,c){var b="";var d=this.script.slides[c].assets[e];if(d==null){return b}var a;if(usePDF){a=d.url["native"]}else{a=d.url.web}if((a!=null)&&(a!="")){if(a.toLowerCase().substring(0,4)==="http"){b=a}else{b=this.showUrl+(c?c+"/":"")+a}}return b},urlForTexture:function(b,a){return this.generateUrl(b,a,false)},generateUrl:function(e,b){var a="";var c="";var d=this.script.slides[b].assets[e];if(!d){return a}if(usePDF){c=d.url["native"]}else{c=d.url.web}if((c!=null)&&(c!="")){if(c.toLowerCase().substring(0,4)==="http"){a=c}else{a=this.showUrl+(b?b+"/":"")+c}}return a}});