yetangitu/pdf.js
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This commit is contained in:
Julian Viereck 2011-09-05 17:42:58 -07:00
parent 0134143c67
commit 71ff8ee586
7 changed files with 154 additions and 122 deletions
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32
worker.js
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@ -25,8 +25,21 @@ var WorkerPage = (function() {
},
startRendering: function(ctx, callback, errback) {
this.ctx = ctx;
this.callback = callback;
// TODO: Place the worker magic HERE.
this.page.startRendering(ctx, callback, errback);
// this.page.startRendering(ctx, callback, errback);
this.workerPDF.startRendering(this)
},
startRenderingFromPreCompilation: function(preCompilation, fonts, images) {
var gfx = new CanvasGraphics(this.ctx);
// TODO: Add proper handling for images loaded by the worker.
var images = new ImagesLoader();
this.page.startRenderingFromPreCompilation(gfx, preCompilation, fonts, images, this.callback);
},
getLinks: function() {
@ -46,6 +59,19 @@ var WorkerPDFDoc = (function() {
this.catalog = this.pdf.catalog;
this.pageCache = [];
this.worker = new Worker("worker/boot.js");
this.handler = new MessageHandler({
"page": function(data) {
var pageNum = data.pageNum;
var page = this.pageCache[pageNum];
page.startRenderingFromPreCompilation(data.preCompilation, data.fonts, data.images);
}
}, this.worker.postMessage, this);
this.worker.onmessage = this.handler.onMessage;
this.handler.send("doc", data);
}
constructor.prototype = {
@ -53,6 +79,10 @@ var WorkerPDFDoc = (function() {
return this.pdf.numPages;
},
startRendering: function(page) {
this.handler.send("page", page.page.pageNumber);
},
getPage: function(n) {
if (this.pageCache[n]) {
return this.pageCache[n];