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Introduces LegacyPromise; polyfills DOM Promise

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This commit is contained in:
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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14
web/pdf_find_controller.js
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@ -16,7 +16,7 @@
'use strict';
/* globals PDFFindBar, PDFJS, FindStates, FirefoxCom */
/* globals PDFFindBar, PDFJS, FindStates, FirefoxCom, Promise */
/**
* Provides a "search" or "find" functionality for the PDF.
@ -64,8 +64,6 @@ var PDFFindController = {
integratedFind: false,
firstPagePromise: new PDFJS.Promise(),
initialize: function(options) {
if(typeof PDFFindBar === 'undefined' || PDFFindBar === null) {
throw 'PDFFindController cannot be initialized ' +
@ -82,6 +80,9 @@ var PDFFindController = {
'findcasesensitivitychange'
];
this.firstPagePromise = new Promise(function (resolve) {
this.resolveFirstPage = resolve;
}.bind(this));
this.handleEvent = this.handleEvent.bind(this);
for (var i = 0; i < events.length; i++) {
@ -139,8 +140,11 @@ var PDFFindController = {
this.startedTextExtraction = true;
this.pageContents = [];
var extractTextPromisesResolves = [];
for (var i = 0, ii = this.pdfPageSource.pdfDocument.numPages; i < ii; i++) {
this.extractTextPromises.push(new PDFJS.Promise());
this.extractTextPromises.push(new Promise(function (resolve) {
extractTextPromisesResolves.push(resolve);
}));
}
var self = this;
@ -158,7 +162,7 @@ var PDFFindController = {
// Store the pageContent as a string.
self.pageContents.push(str);
self.extractTextPromises[pageIndex].resolve(pageIndex);
extractTextPromisesResolves[pageIndex](pageIndex);
if ((pageIndex + 1) < self.pdfPageSource.pages.length)
extractPageText(pageIndex + 1);
}