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Introduces LegacyPromise; polyfills DOM Promise

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Yury Delendik 2014-01-03 18:17:05 -06:00
parent 122cd150d4
commit 5bf3e44e30
20 changed files with 263 additions and 156 deletions
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52
src/display/api.js
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@ -17,7 +17,7 @@
/* globals CanvasGraphics, combineUrl, createScratchCanvas, error,
FontLoader, globalScope, info, isArrayBuffer, loadJpegStream,
MessageHandler, PDFJS, Promise, StatTimer, warn,
PasswordResponses, Util, loadScript,
PasswordResponses, Util, loadScript, LegacyPromise,
FontFace */
'use strict';
@ -161,8 +161,8 @@ PDFJS.getDocument = function getDocument(source,
params[key] = source[key];
}
workerInitializedPromise = new PDFJS.Promise();
workerReadyPromise = new PDFJS.Promise();
workerInitializedPromise = new PDFJS.LegacyPromise();
workerReadyPromise = new PDFJS.LegacyPromise();
transport = new WorkerTransport(workerInitializedPromise,
workerReadyPromise, pdfDataRangeTransport, progressCallback);
workerInitializedPromise.then(function transportInitialized() {
@ -230,7 +230,7 @@ var PDFDocumentProxy = (function PDFDocumentProxyClosure() {
* JavaScript strings in the name tree.
*/
getJavaScript: function PDFDocumentProxy_getJavaScript() {
var promise = new PDFJS.Promise();
var promise = new PDFJS.LegacyPromise();
var js = this.pdfInfo.javaScript;
promise.resolve(js);
return promise;
@ -251,7 +251,7 @@ var PDFDocumentProxy = (function PDFDocumentProxyClosure() {
* ].
*/
getOutline: function PDFDocumentProxy_getOutline() {
var promise = new PDFJS.Promise();
var promise = new PDFJS.LegacyPromise();
var outline = this.pdfInfo.outline;
promise.resolve(outline);
return promise;
@ -263,7 +263,7 @@ var PDFDocumentProxy = (function PDFDocumentProxyClosure() {
* {Metadata} object with information from the metadata section of the PDF.
*/
getMetadata: function PDFDocumentProxy_getMetadata() {
var promise = new PDFJS.Promise();
var promise = new PDFJS.LegacyPromise();
var info = this.pdfInfo.info;
var metadata = this.pdfInfo.metadata;
promise.resolve({
@ -273,7 +273,7 @@ var PDFDocumentProxy = (function PDFDocumentProxyClosure() {
return promise;
},
isEncrypted: function PDFDocumentProxy_isEncrypted() {
var promise = new PDFJS.Promise();
var promise = new PDFJS.LegacyPromise();
promise.resolve(this.pdfInfo.encrypted);
return promise;
},
@ -282,7 +282,7 @@ var PDFDocumentProxy = (function PDFDocumentProxyClosure() {
* the raw data from the PDF.
*/
getData: function PDFDocumentProxy_getData() {
var promise = new PDFJS.Promise();
var promise = new PDFJS.LegacyPromise();
this.transport.getData(promise);
return promise;
},
@ -363,7 +363,7 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
if (this.annotationsPromise)
return this.annotationsPromise;
var promise = new PDFJS.Promise();
var promise = new PDFJS.LegacyPromise();
this.annotationsPromise = promise;
this.transport.getAnnotations(this.pageInfo.pageIndex);
return promise;
@ -397,7 +397,7 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
// requested before. Make the request and create the promise.
if (!this.displayReadyPromise) {
this.receivingOperatorList = true;
this.displayReadyPromise = new Promise();
this.displayReadyPromise = new LegacyPromise();
this.operatorList = {
fnArray: [],
argsArray: [],
@ -444,9 +444,9 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
self._tryDestroy();
if (error) {
renderTask.reject(error);
renderTask.promise.reject(error);
} else {
renderTask.resolve();
renderTask.promise.resolve();
}
stats.timeEnd('Rendering');
stats.timeEnd('Overall');
@ -459,7 +459,7 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
* content from the page.
*/
getTextContent: function PDFPageProxy_getTextContent() {
var promise = new PDFJS.Promise();
var promise = new PDFJS.LegacyPromise();
this.transport.messageHandler.send('GetTextContent', {
pageIndex: this.pageNumber - 1
},
@ -473,7 +473,7 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
* Stub for future feature.
*/
getOperationList: function PDFPageProxy_getOperationList() {
var promise = new PDFJS.Promise();
var promise = new PDFJS.LegacyPromise();
var operationList = { // not implemented
dependencyFontsID: null,
operatorList: null
@ -627,7 +627,7 @@ var WorkerTransport = (function WorkerTransportClosure() {
loadFakeWorkerFiles: function WorkerTransport_loadFakeWorkerFiles() {
if (!PDFJS.fakeWorkerFilesLoadedPromise) {
PDFJS.fakeWorkerFilesLoadedPromise = new Promise();
PDFJS.fakeWorkerFilesLoadedPromise = new LegacyPromise();
// In the developer build load worker_loader which in turn loads all the
// other files and resolves the promise. In production only the
// pdf.worker.js file is needed.
@ -840,7 +840,7 @@ var WorkerTransport = (function WorkerTransportClosure() {
error(data.error);
}, this);
messageHandler.on('JpegDecode', function(data, promise) {
messageHandler.on('JpegDecode', function(data, deferred) {
var imageUrl = data[0];
var components = data[1];
if (components != 3 && components != 1)
@ -869,7 +869,7 @@ var WorkerTransport = (function WorkerTransportClosure() {
buf[j] = data[i];
}
}
promise.resolve({ data: buf, width: width, height: height});
deferred.resolve({ data: buf, width: width, height: height});
}).bind(this);
img.src = imageUrl;
});
@ -894,7 +894,7 @@ var WorkerTransport = (function WorkerTransportClosure() {
},
dataLoaded: function WorkerTransport_dataLoaded() {
var promise = new PDFJS.Promise();
var promise = new PDFJS.LegacyPromise();
this.messageHandler.send('DataLoaded', null, function(args) {
promise.resolve(args);
});
@ -905,14 +905,14 @@ var WorkerTransport = (function WorkerTransportClosure() {
var pageIndex = pageNumber - 1;
if (pageIndex in this.pagePromises)
return this.pagePromises[pageIndex];
var promise = new PDFJS.Promise('Page ' + pageNumber);
var promise = new PDFJS.LegacyPromise();
this.pagePromises[pageIndex] = promise;
this.messageHandler.send('GetPageRequest', { pageIndex: pageIndex });
return promise;
},
getPageIndex: function WorkerTransport_getPageIndexByRef(ref) {
var promise = new PDFJS.Promise();
var promise = new PDFJS.LegacyPromise();
this.messageHandler.send('GetPageIndex', { ref: ref },
function (pageIndex) {
promise.resolve(pageIndex);
@ -927,7 +927,7 @@ var WorkerTransport = (function WorkerTransportClosure() {
},
getDestinations: function WorkerTransport_getDestinations() {
var promise = new PDFJS.Promise();
var promise = new PDFJS.LegacyPromise();
this.messageHandler.send('GetDestinations', null,
function transportDestinations(destinations) {
promise.resolve(destinations);
@ -976,7 +976,7 @@ var PDFObjects = (function PDFObjectsClosure() {
return this.objs[objId];
var obj = {
promise: new Promise(objId),
promise: new LegacyPromise(),
data: null,
resolved: false
};
@ -1057,17 +1057,13 @@ var PDFObjects = (function PDFObjectsClosure() {
};
return PDFObjects;
})();
/*
* RenderTask is basically a promise but adds a cancel function to terminate it.
*/
var RenderTask = (function RenderTaskClosure() {
function RenderTask(internalRenderTask) {
this.internalRenderTask = internalRenderTask;
Promise.call(this);
this.promise = new PDFJS.LegacyPromise();
}
RenderTask.prototype = Object.create(Promise.prototype);
/**
* Cancel the rendering task. If the task is curently rendering it will not be
* cancelled until graphics pauses with a timeout. The promise that this