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Loading PDF.js extension into e10s windows
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| # Additional resources for pdf.js | ||
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| content pdf.js content.js | ||
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| # PDFJS_SUPPORTED_LOCALES |
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| /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | ||
| /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */ | ||
| /* Copyright 2014 Mozilla Foundation | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| /* jshint esnext:true */ | ||
| /* globals Components, Services, XPCOMUtils, PdfjsContentUtils, | ||
| PdfjsContentUtils, PdfStreamConverter, addMessageListener */ | ||
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| 'use strict'; | ||
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| const Cc = Components.classes; | ||
| const Ci = Components.interfaces; | ||
| const Cm = Components.manager; | ||
| const Cu = Components.utils; | ||
| const Cr = Components.results; | ||
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| Cu.import('resource://gre/modules/XPCOMUtils.jsm'); | ||
| Cu.import('resource://gre/modules/Services.jsm'); | ||
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| var isRemote = Services.appinfo.processType === | ||
| Services.appinfo.PROCESS_TYPE_CONTENT; | ||
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| // Factory that registers/unregisters a constructor as a component. | ||
| function Factory() {} | ||
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| Factory.prototype = { | ||
| QueryInterface: XPCOMUtils.generateQI([Ci.nsIFactory]), | ||
| _targetConstructor: null, | ||
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| register: function register(targetConstructor) { | ||
| this._targetConstructor = targetConstructor; | ||
| var proto = targetConstructor.prototype; | ||
| var registrar = Cm.QueryInterface(Ci.nsIComponentRegistrar); | ||
| registrar.registerFactory(proto.classID, proto.classDescription, | ||
| proto.contractID, this); | ||
| }, | ||
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| unregister: function unregister() { | ||
| var proto = this._targetConstructor.prototype; | ||
| var registrar = Cm.QueryInterface(Ci.nsIComponentRegistrar); | ||
| registrar.unregisterFactory(proto.classID, this); | ||
| this._targetConstructor = null; | ||
| }, | ||
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| // nsIFactory | ||
| createInstance: function createInstance(aOuter, iid) { | ||
| if (aOuter !== null) { | ||
| throw Cr.NS_ERROR_NO_AGGREGATION; | ||
| } | ||
| return (new (this._targetConstructor)()).QueryInterface(iid); | ||
| }, | ||
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| // nsIFactory | ||
| lockFactory: function lockFactory(lock) { | ||
| // No longer used as of gecko 1.7. | ||
| throw Cr.NS_ERROR_NOT_IMPLEMENTED; | ||
| } | ||
| }; | ||
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| var pdfStreamConverterFactory = new Factory(); | ||
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| function startup() { | ||
| Cu.import('resource://pdf.js/PdfjsContentUtils.jsm'); | ||
| PdfjsContentUtils.init(); | ||
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| Cu.import('resource://pdf.js/PdfStreamConverter.jsm'); | ||
| pdfStreamConverterFactory.register(PdfStreamConverter); | ||
| } | ||
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| function shutdown() { | ||
| // Remove the contract/component. | ||
| pdfStreamConverterFactory.unregister(); | ||
| // Unload the converter | ||
| Cu.unload('resource://pdf.js/PdfStreamConverter.jsm'); | ||
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| PdfjsContentUtils.uninit(); | ||
| Cu.unload('resource://pdf.js/PdfjsContentUtils.jsm'); | ||
| } | ||
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| if (isRemote) { | ||
| startup(); | ||
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| addMessageListener('PDFJS:Child:shutdown', function (e) { | ||
| shutdown(); | ||
| }); | ||
| } |
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