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Merge branch 'bug/loader-674492' into experimental/e10s

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2 parents 5e5d152 + 0c7ebbb commit ae3d174e024c879366771fd503be287c863f0bd7 @Gozala committed Aug 10, 2011
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+/* ***** 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 Weave.
+ *
+ * The Initial Developer of the Original Code is Mozilla.
+ * Portions created by the Initial Developer are Copyright (C) 2008
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ * Dan Mills <thunder@mozilla.com>
+ * Atul Varma <atul@mozilla.com>
+ * Drew Willcoxon <adw@mozilla.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 ***** */
+
+"use strict";
+
+// For more information on the context in which this script is executed, see:
+// https://developer.mozilla.org/en/Extensions/Bootstrapped_extensions
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cu = Components.utils;
+const Cr = Components.results;
+
+// Object containing information about the XPCOM harness service
+// that manages our addon.
+
+var gHarness;
+
+var ios = Cc['@mozilla.org/network/io-service;1']
+ .getService(Ci.nsIIOService);
+
+var manager = Components.manager.QueryInterface(Ci.nsIComponentRegistrar);
+
+// Dynamically evaluate and initialize the XPCOM component in
+// components/harness.js, which bootstraps our addon. (We want to keep
+// components/harness.js around so that versions of Gecko that don't
+// support rebootless addons can still work.)
+
+function setupHarness(installPath, loadReason) {
+ var harnessJs = installPath.clone();
+ harnessJs.append("components");
+ harnessJs.append("harness.js");
+ var path = ios.newFileURI(harnessJs).spec;
+ var harness = {};
+ var loader = Cc["@mozilla.org/moz/jssubscript-loader;1"]
+ .getService(Ci.mozIJSSubScriptLoader);
+ loader.loadSubScript(path, harness);
+
+ var HarnessService = harness.buildHarnessService(installPath);
+ var factory = HarnessService.prototype._xpcom_factory;
+ var proto = HarnessService.prototype;
+
+ // We want to keep this factory around for the lifetime of
+ // the addon so legacy code with access to Components can
+ // access the addon if needed.
+ manager.registerFactory(proto.classID,
+ proto.classDescription,
+ proto.contractID,
+ factory);
+
+ var harnessService = factory.createInstance(null, Ci.nsISupports);
+ harnessService = harnessService.wrappedJSObject;
+
+ gHarness = {
+ service: harnessService,
+ classID: proto.classID,
+ contractID: proto.contractID,
+ factory: factory
+ };
+
+ if (loadReason == "startup")
+ // Simulate a startup event; the harness service will take care of
+ // waiting until the app is ready for the extension's code to run.
+ harnessService.observe(null, "profile-after-change", null);
+ else
+ harnessService.load(loadReason);
+}
+
+function reasonToString(reason) {
+ // If you change these names, change them in harness.js's lifeCycleObserver192
+ // too.
+ switch (reason) {
+ case ADDON_INSTALL:
+ return "install";
+ case ADDON_UNINSTALL:
+ return "uninstall";
+ case ADDON_ENABLE:
+ return "enable";
+ case ADDON_DISABLE:
+ return "disable";
+ case ADDON_UPGRADE:
+ return "upgrade";
+ case ADDON_DOWNGRADE:
+ return "downgrade";
+ // The startup and shutdown strings are also used outside of
+ // lifeCycleObserver192.
+ case APP_STARTUP:
+ return "startup";
+ case APP_SHUTDOWN:
+ return "shutdown";
+ }
+ return undefined;
+}
+
+function install(data, reason) {
+ // We shouldn't start up here; startup() will always be called when
+ // an extension should load, and install() sometimes gets called when
+ // an extension has been installed but is disabled.
+}
+
+function startup(data, reason) {
+ if (!gHarness)
+ setupHarness(data.installPath, reasonToString(reason));
+}
+
+function shutdown(data, reason) {
+ if (gHarness) {
+ var harness = gHarness;
+ gHarness = undefined;
+ harness.service.unload(reasonToString(reason));
+ manager.unregisterFactory(harness.classID, harness.factory);
+ }
+}
+
+function uninstall(data, reason) {
+ // We shouldn't shutdown here; shutdown() will always be called when
+ // an extension should shutdown, and uninstall() sometimes gets
+ // called when startup() has never been called before it.
+}

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