500c4f7ad2
Backed out changeset 83c87140dc3d (bug 888600) Backed out changeset 2efb9b1753f6 (bug 888600) Backed out changeset af5303781961 (bug 888600) Backed out changeset 79ef59047e63 (bug 888600) Backed out changeset 30d568d628dd (bug 888600) Backed out changeset c7bd4c6c9741 (bug 888600)
140 lines
3.7 KiB
JavaScript
140 lines
3.7 KiB
JavaScript
/* Copyright 2012 Mozilla Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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"use strict";
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var EXPORTED_SYMBOLS = ["PdfjsContentUtils"];
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ChromeUtils.import("resource://gre/modules/Services.jsm");
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var PdfjsContentUtils = {
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_mm: null,
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/*
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* Public API
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*/
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get isRemote() {
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return (Services.appinfo.processType ===
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Services.appinfo.PROCESS_TYPE_CONTENT);
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},
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init() {
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// child *process* mm, or when loaded into the parent for in-content
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// support the psuedo child process mm 'child PPMM'.
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if (!this._mm) {
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this._mm = Cc["@mozilla.org/childprocessmessagemanager;1"].
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getService(Ci.nsISyncMessageSender);
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this._mm.addMessageListener("PDFJS:Child:updateSettings", this);
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Services.obs.addObserver(this, "quit-application");
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}
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},
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uninit() {
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if (this._mm) {
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this._mm.removeMessageListener("PDFJS:Child:updateSettings", this);
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Services.obs.removeObserver(this, "quit-application");
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}
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this._mm = null;
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},
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/*
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* prefs utilities - the child does not have write access to prefs.
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* note, the pref names here are cross-checked against a list of
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* approved pdfjs prefs in chrome utils.
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*/
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clearUserPref(aPrefName) {
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this._mm.sendSyncMessage("PDFJS:Parent:clearUserPref", {
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name: aPrefName,
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});
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},
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setIntPref(aPrefName, aPrefValue) {
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this._mm.sendSyncMessage("PDFJS:Parent:setIntPref", {
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name: aPrefName,
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value: aPrefValue,
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});
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},
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setBoolPref(aPrefName, aPrefValue) {
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this._mm.sendSyncMessage("PDFJS:Parent:setBoolPref", {
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name: aPrefName,
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value: aPrefValue,
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});
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},
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setCharPref(aPrefName, aPrefValue) {
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this._mm.sendSyncMessage("PDFJS:Parent:setCharPref", {
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name: aPrefName,
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value: aPrefValue,
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});
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},
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setStringPref(aPrefName, aPrefValue) {
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this._mm.sendSyncMessage("PDFJS:Parent:setStringPref", {
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name: aPrefName,
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value: aPrefValue,
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});
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},
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/*
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* Request the display of a notification warning in the associated window
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* when the renderer isn't sure a pdf displayed correctly.
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*/
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displayWarning(aWindow, aMessage, aLabel, aAccessKey) {
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// the child's dom frame mm associated with the window.
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let winmm = aWindow.QueryInterface(Ci.nsIInterfaceRequestor)
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.getInterface(Ci.nsIDocShell)
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.QueryInterface(Ci.nsIInterfaceRequestor)
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.getInterface(Ci.nsIContentFrameMessageManager);
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winmm.sendAsyncMessage("PDFJS:Parent:displayWarning", {
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message: aMessage,
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label: aLabel,
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accessKey: aAccessKey,
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});
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},
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/*
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* Events
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*/
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observe(aSubject, aTopic, aData) {
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if (aTopic === "quit-application") {
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this.uninit();
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}
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},
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receiveMessage(aMsg) {
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switch (aMsg.name) {
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case "PDFJS:Child:updateSettings":
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// Only react to this if we are remote.
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if (Services.appinfo.processType ===
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Services.appinfo.PROCESS_TYPE_CONTENT) {
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let jsm = "resource://pdf.js/PdfJs.jsm";
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let pdfjs = ChromeUtils.import(jsm, {}).PdfJs;
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if (aMsg.data.enabled) {
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pdfjs.ensureRegistered();
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} else {
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pdfjs.ensureUnregistered();
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}
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}
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break;
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}
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},
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};
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