--- /dev/null
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (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.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Special Powers code
+ *
+ * The Initial Developer of the Original Code is
+ * Mozilla Foundation.
+ * Portions created by the Initial Developer are Copyright (C) 2010
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ * Jesse Ruderman <jruderman@mozilla.com>
+ * Robert Sayre <sayrer@gmail.com>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK *****/
+
+// Based on:
+// https://bugzilla.mozilla.org/show_bug.cgi?id=549539
+// https://bug549539.bugzilla.mozilla.org/attachment.cgi?id=429661
+// https://developer.mozilla.org/en/XPCOM/XPCOM_changes_in_Gecko_1.9.3
+// http://mxr.mozilla.org/mozilla-central/source/toolkit/components/console/hudservice/HUDService.jsm#3240
+// https://developer.mozilla.org/en/how_to_build_an_xpcom_component_in_javascript
+
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+
+const CHILD_SCRIPT = "chrome://specialpowers/content/specialpowers.js"
+
+/**
+ * Special Powers Exception - used to throw exceptions nicely
+ **/
+function SpecialPowersException(aMsg) {
+ this.message = aMsg;
+ this.name = "SpecialPowersException";
+}
+
+SpecialPowersException.prototype.toString = function() {
+ return this.name + ': "' + this.message + '"';
+};
+
+/* XPCOM gunk */
+function SpecialPowersObserver() {
+ this._isFrameScriptLoaded = false;
+ this._messageManager = Cc["@mozilla.org/globalmessagemanager;1"].
+ getService(Ci.nsIChromeFrameMessageManager);
+}
+
+SpecialPowersObserver.prototype = {
+ classDescription: "Special powers Observer for use in testing.",
+ classID: Components.ID("{59a52458-13e0-4d93-9d85-a637344f29a1}"),
+ contractID: "@mozilla.org/special-powers-observer;1",
+ QueryInterface: XPCOMUtils.generateQI([Components.interfaces.nsIObserver]),
+ _xpcom_categories: [{category: "profile-after-change", service: true }],
+
+ observe: function(aSubject, aTopic, aData)
+ {
+ switch (aTopic) {
+ case "profile-after-change":
+ this.init();
+ break;
+
+ case "chrome-document-global-created":
+ if (!this._isFrameScriptLoaded) {
+ // Register for any messages our API needs us to handle
+ this._messageManager.addMessageListener("SPPrefService", this);
+ this._messageManager.addMessageListener("SPProcessCrashService", this);
+ this._messageManager.addMessageListener("SPPingService", this);
+
+ this._messageManager.loadFrameScript(CHILD_SCRIPT, true);
+ this._isFrameScriptLoaded = true;
+ }
+ break;
+
+ case "xpcom-shutdown":
+ this.uninit();
+ break;
+
+ case "plugin-crashed":
+ case "ipc:content-shutdown":
+ function addDumpIDToMessage(propertyName) {
+ var id = aSubject.getPropertyAsAString(propertyName);
+ if (id) {
+ message.dumpIDs.push(id);
+ }
+ }
+
+ var message = { type: "crash-observed", dumpIDs: [] };
+ aSubject = aSubject.QueryInterface(Ci.nsIPropertyBag2);
+ if (aTopic == "plugin-crashed") {
+ addDumpIDToMessage("pluginDumpID");
+ addDumpIDToMessage("browserDumpID");
+ } else { // ipc:content-shutdown
+ addDumpIDToMessage("dumpID");
+ }
+ this._messageManager.sendAsyncMessage("SPProcessCrashService", message);
+ break;
+ }
+ },
+
+ init: function()
+ {
+ var obs = Services.obs;
+ obs.addObserver(this, "xpcom-shutdown", false);
+ obs.addObserver(this, "chrome-document-global-created", false);
+ },
+
+ uninit: function()
+ {
+ var obs = Services.obs;
+ obs.removeObserver(this, "chrome-document-global-created", false);
+ this.removeProcessCrashObservers();
+ },
+
+ addProcessCrashObservers: function() {
+ if (this._processCrashObserversRegistered) {
+ return;
+ }
+
+ Services.obs.addObserver(this, "plugin-crashed", false);
+ Services.obs.addObserver(this, "ipc:content-shutdown", false);
+ this._processCrashObserversRegistered = true;
+ },
+
+ removeProcessCrashObservers: function() {
+ if (!this._processCrashObserversRegistered) {
+ return;
+ }
+
+ Services.obs.removeObserver(this, "plugin-crashed");
+ Services.obs.removeObserver(this, "ipc:content-shutdown");
+ this._processCrashObserversRegistered = false;
+ },
+
+ getCrashDumpDir: function() {
+ if (!this._crashDumpDir) {
+ var directoryService = Cc["@mozilla.org/file/directory_service;1"]
+ .getService(Ci.nsIProperties);
+ this._crashDumpDir = directoryService.get("ProfD", Ci.nsIFile);
+ this._crashDumpDir.append("minidumps");
+ }
+ return this._crashDumpDir;
+ },
+
+ deleteCrashDumpFiles: function(aFilenames) {
+ var crashDumpDir = this.getCrashDumpDir();
+ if (!crashDumpDir.exists()) {
+ return false;
+ }
+
+ var success = aFilenames.length != 0;
+ aFilenames.forEach(function(crashFilename) {
+ var file = crashDumpDir.clone();
+ file.append(crashFilename);
+ if (file.exists()) {
+ file.remove(false);
+ } else {
+ success = false;
+ }
+ });
+ return success;
+ },
+
+ findCrashDumpFiles: function(aToIgnore) {
+ var crashDumpDir = this.getCrashDumpDir();
+ var entries = crashDumpDir.exists() && crashDumpDir.directoryEntries;
+ if (!entries) {
+ return [];
+ }
+
+ var crashDumpFiles = [];
+ while (entries.hasMoreElements()) {
+ var file = entries.getNext().QueryInterface(Ci.nsIFile);
+ var path = String(file.path);
+ if (path.match(/\.(dmp|extra)$/) && !aToIgnore[path]) {
+ crashDumpFiles.push(path);
+ }
+ }
+ return crashDumpFiles.concat();
+ },
+
+ /**
+ * messageManager callback function
+ * This will get requests from our API in the window and process them in chrome for it
+ **/
+ receiveMessage: function(aMessage) {
+ switch(aMessage.name) {
+ case "SPPrefService":
+ var prefs = Services.prefs;
+ var prefType = aMessage.json.prefType.toUpperCase();
+ var prefName = aMessage.json.prefName;
+ var prefValue = "prefValue" in aMessage.json ? aMessage.json.prefValue : null;
+
+ if (aMessage.json.op == "get") {
+ if (!prefName || !prefType)
+ throw new SpecialPowersException("Invalid parameters for get in SPPrefService");
+ } else if (aMessage.json.op == "set") {
+ if (!prefName || !prefType || prefValue === null)
+ throw new SpecialPowersException("Invalid parameters for set in SPPrefService");
+ } else if (aMessage.json.op == "clear") {
+ if (!prefName)
+ throw new SpecialPowersException("Invalid parameters for clear in SPPrefService");
+ } else {
+ throw new SpecialPowersException("Invalid operation for SPPrefService");
+ }
+ // Now we make the call
+ switch(prefType) {
+ case "BOOL":
+ if (aMessage.json.op == "get")
+ return(prefs.getBoolPref(prefName));
+ else
+ return(prefs.setBoolPref(prefName, prefValue));
+ case "INT":
+ if (aMessage.json.op == "get")
+ return(prefs.getIntPref(prefName));
+ else
+ return(prefs.setIntPref(prefName, prefValue));
+ case "CHAR":
+ if (aMessage.json.op == "get")
+ return(prefs.getCharPref(prefName));
+ else
+ return(prefs.setCharPref(prefName, prefValue));
+ case "COMPLEX":
+ if (aMessage.json.op == "get")
+ return(prefs.getComplexValue(prefName, prefValue[0]));
+ else
+ return(prefs.setComplexValue(prefName, prefValue[0], prefValue[1]));
+ case "":
+ if (aMessage.json.op == "clear") {
+ prefs.clearUserPref(prefName);
+ return;
+ }
+ }
+ break;
+
+ case "SPProcessCrashService":
+ switch (aMessage.json.op) {
+ case "register-observer":
+ this.addProcessCrashObservers();
+ break;
+ case "unregister-observer":
+ this.removeProcessCrashObservers();
+ break;
+ case "delete-crash-dump-files":
+ return this.deleteCrashDumpFiles(aMessage.json.filenames);
+ case "find-crash-dump-files":
+ return this.findCrashDumpFiles(aMessage.json.crashDumpFilesToIgnore);
+ default:
+ throw new SpecialPowersException("Invalid operation for SPProcessCrashService");
+ }
+ break;
+
+ case "SPPingService":
+ if (aMessage.json.op == "ping") {
+ aMessage.target
+ .QueryInterface(Ci.nsIFrameLoaderOwner)
+ .frameLoader
+ .messageManager
+ .sendAsyncMessage("SPPingService", { op: "pong" });
+ }
+ break;
+
+ default:
+ throw new SpecialPowersException("Unrecognized Special Powers API");
+ }
+ }
+};
+
+const NSGetFactory = XPCOMUtils.generateNSGetFactory([SpecialPowersObserver]);
projects / pdf.js.git / commitdiff