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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 Jetpack.
- *
- * The Initial Developer of the Original Code is Mozilla.
- * Portions created by the Initial Developer are Copyright (C) 2007
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- * Atul Varma <atul@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 ***** */
-
-// This is the first code that's ever run in a Jetpack process. It sets up
-// infrastructure and receivers needed to start a Jetpack-based addon
-// in a separate process.
-
-// A list of scripts to inject into all new CommonJS module sandboxes.
-var injectedSandboxScripts = [];
-
-// A table of all CommonJS modules currently loaded.
-var modules = {};
-
-// This object represents the chrome process, and can be used to
-// communicate with it.
-var chrome = {
- createHandle: function() {
- return createHandle();
- },
- on: function(type, listener) {
- registerReceiver(type, listener);
- },
- removeListener: function(type, listener) {
- unregisterReceiver(type, listener);
- },
- send: function(type) {
- sendMessage.apply(this, arguments);
- },
- call: function(name) {
- var result = callMessage.apply(this, arguments);
-
- if (result.length > 1)
- throw new Error("More than one result received for call '" + name +
- "': " + result.length);
-
- if (result.length == 0)
- throw new Error("No receiver registered for call '" + name + "'");
-
- if (result[0].exception) {
- throw Object.create(Error.prototype, {
- message: { value: result[0].exception.message, enumerable: true },
- fileName: { value: result[0].exception.fileName, enumerable: true },
- lineNumber: { value: result[0].exception.lineNumber, enumerable: true },
- // Concatenate the stack from the other process with one from this
- // process, so callers have access to the full stack.
- stack: { value: result[0].exception.stack + (new Error()).stack,
- enumerable: true }
- });
- }
-
- return result[0].returnValue;
- }
-};
-
-// Use this for really low-level debugging of this script.
-function dump(msg) {
- // Don't use chrome.send() to avoid infinite recursion when
- // debugging chrome.send() itself.
- sendMessage("dump", msg);
-}
-
-// Taken from plain-text-console.js.
-function stringify(arg) {
- try {
- return String(arg);
- }
- catch(ex) {
- return "<toString() error>";
- }
-}
-
-// Set up our "proxy" objects that just send messages to our parent
-// process to do the real work.
-var console = {
- exception: function(e) {
- chrome.send('console:exception', e);
- },
- trace: function() {
- chrome.send('console:trace', new Error());
- }
-};
-
-['log', 'debug', 'info', 'warn', 'error'].forEach(function(method) {
- console[method] = function() {
- chrome.send('console:' + method, Array.map(arguments, stringify));
- }
-});
-
-var memory = {
- track: function() {
- /* TODO */
- }
-};
-
-function makeRequire(base) {
- var resolvedNames = {};
-
- function require(name) {
- // first, have we already require()d this name from this base? Just
- // re-use the module
- if (name && name in resolvedNames)
- return resolvedNames[name].exports;
-
- // if not, resolve relative import names by asking the browser-process
- // side for the URL/filename of the module this points to
- var response = chrome.call("require", base, name);
- switch (response.code) {
- case "not-found":
- throw new Error("Unknown module '" + name + "'.");
- case "access-denied":
- throw new Error("Module '" + name + "' requires chrome privileges " +
- "and has no e10s adapter.");
- case "error":
- throw new Error("An unexpected error occurred in the chrome " +
- "process.");
- case "ok":
- break;
- default:
- throw new Error("Internal error: unknown response code '" +
- response.code + "'");
- };
-
- // do we already have a module for this filename?
- if (response.script.filename in modules) {
- module = resolvedNames[name] = modules[response.script.filename];
- return module.exports;
- }
-
- var module = createSandbox();
-
- function injectScript(script) {
- evalInSandbox(module, '//@line 1 "' + script.filename +
- '"\n' + script.contents);
- }
-
- injectedSandboxScripts.forEach(injectScript);
-
- modules[response.script.filename] = resolvedNames[name] = module;
-
- // Set up the globals of the sandbox.
- module.exports = {};
- module.console = console;
- module.memory = memory;
- module.require = makeRequire(response.script.filename);
- module.__url__ = response.script.filename;
-
- if (response.needsMessaging)
- module.chrome = chrome;
-
- injectScript(response.script);
-
- return module.exports;
- };
- return require;
-}
-
-chrome.on(
- "addInjectedSandboxScript",
- function(name, script) {
- injectedSandboxScripts.push(script);
- });
-
-chrome.on(
- "startMain",
- function(name, mainName, options) {
- var mainRequire = makeRequire(null);
- var main = mainRequire(mainName);
-
- var callbacks = {
- quit: function quit(status) {
- if (status === undefined)
- status = "OK";
- chrome.send("quit", status);
- }
- };
-
- if ('main' in main)
- main.main(options, callbacks);
- });