mirror of
https://github.com/mozilla/gecko-dev.git
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427 lines
16 KiB
JavaScript
427 lines
16 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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/**
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* Manages the addon-sdk loader instance used to load the developer tools.
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*/
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let { Constructor: CC, classes: Cc, interfaces: Ci, utils: Cu } = Components;
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// addDebuggerToGlobal only allows adding the Debugger object to a global. The
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// this object is not guaranteed to be a global (in particular on B2G, due to
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// compartment sharing), so add the Debugger object to a sandbox instead.
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let sandbox = Cu.Sandbox(CC('@mozilla.org/systemprincipal;1', 'nsIPrincipal')());
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Cu.evalInSandbox(
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"Components.utils.import('resource://gre/modules/jsdebugger.jsm');" +
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"addDebuggerToGlobal(this);",
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sandbox
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);
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let Debugger = sandbox.Debugger;
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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Cu.import("resource://gre/modules/Services.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "NetUtil", "resource://gre/modules/NetUtil.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "FileUtils", "resource://gre/modules/FileUtils.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "OS", "resource://gre/modules/osfile.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "console", "resource://gre/modules/devtools/Console.jsm");
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let xpcInspector = Cc["@mozilla.org/jsinspector;1"].getService(Ci.nsIJSInspector);
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let loader = Cu.import("resource://gre/modules/commonjs/toolkit/loader.js", {}).Loader;
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let promise = Cu.import("resource://gre/modules/Promise.jsm", {}).Promise;
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this.EXPORTED_SYMBOLS = ["DevToolsLoader", "devtools", "BuiltinProvider",
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"SrcdirProvider"];
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/**
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* Providers are different strategies for loading the devtools.
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*/
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let Timer = Cu.import("resource://gre/modules/Timer.jsm", {});
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let loaderGlobals = {
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isWorker: false,
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reportError: Cu.reportError,
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btoa: btoa,
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console: console,
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_Iterator: Iterator,
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loader: {
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lazyGetter: (...args) => devtools.lazyGetter.apply(devtools, args),
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lazyImporter: (...args) => devtools.lazyImporter.apply(devtools, args),
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lazyServiceGetter: (...args) => devtools.lazyServiceGetter.apply(devtools, args),
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lazyRequireGetter: (...args) => devtools.lazyRequireGetter.apply(devtools, args)
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},
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};
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let loaderModules = {
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"Debugger": Debugger,
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"Services": Object.create(Services),
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"Timer": Object.create(Timer),
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"toolkit/loader": loader,
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"xpcInspector": xpcInspector,
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"promise": promise,
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};
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try {
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let { indexedDB } = Cu.Sandbox(this, {wantGlobalProperties:["indexedDB"]});
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loaderModules.indexedDB = indexedDB;
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} catch(e) {
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// On xpcshell, we can't instantiate indexedDB without crashing
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}
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let sharedGlobalBlacklist = ["sdk/indexed-db"];
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// Used when the tools should be loaded from the Firefox package itself (the default)
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function BuiltinProvider() {}
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BuiltinProvider.prototype = {
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load: function() {
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this.loader = new loader.Loader({
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id: "fx-devtools",
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modules: loaderModules,
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paths: {
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// When you add a line to this mapping, don't forget to make a
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// corresponding addition to the SrcdirProvider mapping below as well.
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"": "resource://gre/modules/commonjs/",
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"main": "resource:///modules/devtools/main.js",
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"devtools": "resource:///modules/devtools",
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"devtools/toolkit": "resource://gre/modules/devtools",
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"devtools/server": "resource://gre/modules/devtools/server",
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"devtools/toolkit/webconsole": "resource://gre/modules/devtools/toolkit/webconsole",
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"devtools/app-actor-front": "resource://gre/modules/devtools/app-actor-front.js",
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"devtools/styleinspector/css-logic": "resource://gre/modules/devtools/styleinspector/css-logic",
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"devtools/css-color": "resource://gre/modules/devtools/css-color",
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"devtools/output-parser": "resource://gre/modules/devtools/output-parser",
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"devtools/touch-events": "resource://gre/modules/devtools/touch-events",
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"devtools/client": "resource://gre/modules/devtools/client",
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"devtools/pretty-fast": "resource://gre/modules/devtools/pretty-fast.js",
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"devtools/jsbeautify": "resource://gre/modules/devtools/jsbeautify/beautify.js",
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"devtools/async-utils": "resource://gre/modules/devtools/async-utils",
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"devtools/content-observer": "resource://gre/modules/devtools/content-observer",
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"gcli": "resource://gre/modules/devtools/gcli",
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"projecteditor": "resource:///modules/devtools/projecteditor",
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"acorn": "resource://gre/modules/devtools/acorn",
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"acorn/util/walk": "resource://gre/modules/devtools/acorn/walk.js",
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"tern": "resource://gre/modules/devtools/tern",
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"source-map": "resource://gre/modules/devtools/SourceMap.jsm",
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// Allow access to xpcshell test items from the loader.
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"xpcshell-test": "resource://test"
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},
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globals: loaderGlobals,
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invisibleToDebugger: this.invisibleToDebugger,
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sharedGlobal: true,
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sharedGlobalBlacklist: sharedGlobalBlacklist
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});
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return promise.resolve(undefined);
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},
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unload: function(reason) {
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loader.unload(this.loader, reason);
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delete this.loader;
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},
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};
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// Used when the tools should be loaded from a mozilla-central checkout. In addition
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// to different paths, it needs to write chrome.manifest files to override chrome urls
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// from the builtin tools.
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function SrcdirProvider() {}
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SrcdirProvider.prototype = {
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fileURI: function(path) {
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let file = new FileUtils.File(path);
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return Services.io.newFileURI(file).spec;
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},
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load: function() {
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let srcdir = Services.prefs.getComplexValue("devtools.loader.srcdir",
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Ci.nsISupportsString);
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srcdir = OS.Path.normalize(srcdir.data.trim());
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let devtoolsDir = OS.Path.join(srcdir, "browser", "devtools");
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let toolkitDir = OS.Path.join(srcdir, "toolkit", "devtools");
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let mainURI = this.fileURI(OS.Path.join(devtoolsDir, "main.js"));
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let devtoolsURI = this.fileURI(devtoolsDir);
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let toolkitURI = this.fileURI(toolkitDir);
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let serverURI = this.fileURI(OS.Path.join(toolkitDir, "server"));
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let webconsoleURI = this.fileURI(OS.Path.join(toolkitDir, "webconsole"));
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let appActorURI = this.fileURI(OS.Path.join(toolkitDir, "apps", "app-actor-front.js"));
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let cssLogicURI = this.fileURI(OS.Path.join(toolkitDir, "styleinspector", "css-logic"));
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let cssColorURI = this.fileURI(OS.Path.join(toolkitDir, "css-color"));
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let outputParserURI = this.fileURI(OS.Path.join(toolkitDir, "output-parser"));
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let touchEventsURI = this.fileURI(OS.Path.join(toolkitDir, "touch-events"));
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let clientURI = this.fileURI(OS.Path.join(toolkitDir, "client"));
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let prettyFastURI = this.fileURI(OS.Path.join(toolkitDir), "pretty-fast.js");
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let jsBeautifyURI = this.fileURI(OS.Path.join(toolkitDir, "jsbeautify", "beautify.js"));
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let asyncUtilsURI = this.fileURI(OS.Path.join(toolkitDir), "async-utils.js");
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let contentObserverURI = this.fileURI(OS.Path.join(toolkitDir), "content-observer.js");
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let gcliURI = this.fileURI(OS.Path.join(toolkitDir, "gcli", "source", "lib", "gcli"));
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let projecteditorURI = this.fileURI(OS.Path.join(devtoolsDir, "projecteditor"));
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let acornURI = this.fileURI(OS.Path.join(toolkitDir, "acorn"));
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let acornWalkURI = OS.Path.join(acornURI, "walk.js");
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let ternURI = OS.Path.join(toolkitDir, "tern");
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let sourceMapURI = this.fileURI(OS.Path.join(toolkitDir), "SourceMap.jsm");
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this.loader = new loader.Loader({
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id: "fx-devtools",
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modules: loaderModules,
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paths: {
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"": "resource://gre/modules/commonjs/",
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"main": mainURI,
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"devtools": devtoolsURI,
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"devtools/toolkit": toolkitURI,
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"devtools/server": serverURI,
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"devtools/toolkit/webconsole": webconsoleURI,
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"devtools/app-actor-front": appActorURI,
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"devtools/styleinspector/css-logic": cssLogicURI,
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"devtools/css-color": cssColorURI,
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"devtools/output-parser": outputParserURI,
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"devtools/touch-events": touchEventsURI,
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"devtools/client": clientURI,
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"devtools/pretty-fast": prettyFastURI,
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"devtools/jsbeautify": jsBeautifyURI,
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"devtools/async-utils": asyncUtilsURI,
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"devtools/content-observer": contentObserverURI,
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"gcli": gcliURI,
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"projecteditor": projecteditorURI,
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"acorn": acornURI,
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"acorn/util/walk": acornWalkURI,
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"tern": ternURI,
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"source-map": sourceMapURI,
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},
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globals: loaderGlobals,
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invisibleToDebugger: this.invisibleToDebugger,
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sharedGlobal: true,
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sharedGlobalBlacklist: sharedGlobalBlacklist
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});
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return this._writeManifest(devtoolsDir).then(null, Cu.reportError);
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},
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unload: function(reason) {
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loader.unload(this.loader, reason);
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delete this.loader;
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},
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_readFile: function(filename) {
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let deferred = promise.defer();
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let file = new FileUtils.File(filename);
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NetUtil.asyncFetch(file, (inputStream, status) => {
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if (!Components.isSuccessCode(status)) {
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deferred.reject(new Error("Couldn't load manifest: " + filename + "\n"));
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return;
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}
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var data = NetUtil.readInputStreamToString(inputStream, inputStream.available());
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deferred.resolve(data);
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});
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return deferred.promise;
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},
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_writeFile: function(filename, data) {
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let deferred = promise.defer();
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let file = new FileUtils.File(filename);
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var ostream = FileUtils.openSafeFileOutputStream(file)
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var converter = Cc["@mozilla.org/intl/scriptableunicodeconverter"].
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createInstance(Ci.nsIScriptableUnicodeConverter);
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converter.charset = "UTF-8";
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var istream = converter.convertToInputStream(data);
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NetUtil.asyncCopy(istream, ostream, (status) => {
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if (!Components.isSuccessCode(status)) {
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deferred.reject(new Error("Couldn't write manifest: " + filename + "\n"));
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return;
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}
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deferred.resolve(null);
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});
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return deferred.promise;
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},
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_writeManifest: function(dir) {
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return this._readFile(OS.Path.join(dir, "jar.mn")).then((data) => {
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// The file data is contained within inputStream.
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// You can read it into a string with
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let entries = [];
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let lines = data.split(/\n/);
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let preprocessed = /^\s*\*/;
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let contentEntry = new RegExp("^\\s+content/(\\w+)/(\\S+)\\s+\\((\\S+)\\)");
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for (let line of lines) {
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if (preprocessed.test(line)) {
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dump("Unable to override preprocessed file: " + line + "\n");
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continue;
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}
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let match = contentEntry.exec(line);
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if (match) {
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let pathComponents = match[3].split("/");
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pathComponents.unshift(dir);
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let path = OS.Path.join.apply(OS.Path, pathComponents);
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let uri = this.fileURI(path);
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let entry = "override chrome://" + match[1] + "/content/" + match[2] + "\t" + uri;
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entries.push(entry);
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}
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}
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return this._writeFile(OS.Path.join(dir, "chrome.manifest"), entries.join("\n"));
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}).then(() => {
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Components.manager.addBootstrappedManifestLocation(new FileUtils.File(dir));
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});
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}
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};
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/**
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* The main devtools API.
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* In addition to a few loader-related details, this object will also include all
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* exports from the main module. The standard instance of this loader is
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* exported as |devtools| below, but if a fresh copy of the loader is needed,
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* then a new one can also be created.
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*/
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this.DevToolsLoader = function DevToolsLoader() {
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this.require = this.require.bind(this);
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this.lazyGetter = XPCOMUtils.defineLazyGetter.bind(XPCOMUtils);
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this.lazyImporter = XPCOMUtils.defineLazyModuleGetter.bind(XPCOMUtils);
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this.lazyServiceGetter = XPCOMUtils.defineLazyServiceGetter.bind(XPCOMUtils);
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this.lazyRequireGetter = this.lazyRequireGetter.bind(this);
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};
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DevToolsLoader.prototype = {
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get provider() {
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if (!this._provider) {
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this._chooseProvider();
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}
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return this._provider;
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},
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_provider: null,
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/**
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* A dummy version of require, in case a provider hasn't been chosen yet when
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* this is first called. This will then be replaced by the real version.
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* @see setProvider
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*/
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require: function() {
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this._chooseProvider();
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return this.require.apply(this, arguments);
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},
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/**
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* Define a getter property on the given object that requires the given
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* module. This enables delaying importing modules until the module is
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* actually used.
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*
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* @param Object obj
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* The object to define the property on.
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* @param String property
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* The property name.
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* @param String module
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* The module path.
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* @param Boolean destructure
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* Pass true if the property name is a member of the module's exports.
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*/
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lazyRequireGetter: function (obj, property, module, destructure) {
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Object.defineProperty(obj, property, {
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get: () => destructure
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? this.require(module)[property]
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: this.require(module || property)
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});
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},
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/**
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* Add a URI to the loader.
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* @param string id
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* The module id that can be used within the loader to refer to this module.
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* @param string uri
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* The URI to load as a module.
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* @returns The module's exports.
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*/
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loadURI: function(id, uri) {
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let module = loader.Module(id, uri);
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return loader.load(this.provider.loader, module).exports;
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},
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/**
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* Let the loader know the ID of the main module to load.
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*
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* The loader doesn't need a main module, but it's nice to have. This
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* will be called by the browser devtools to load the devtools/main module.
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*
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* When only using the server, there's no main module, and this method
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* can be ignored.
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*/
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main: function(id) {
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// Ensure the main module isn't loaded twice, because it may have observable
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// side-effects.
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if (this._mainid) {
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return;
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}
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this._mainid = id;
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this._main = loader.main(this.provider.loader, id);
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// Mirror the main module's exports on this object.
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Object.getOwnPropertyNames(this._main).forEach(key => {
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XPCOMUtils.defineLazyGetter(this, key, () => this._main[key]);
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});
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},
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/**
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* Override the provider used to load the tools.
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*/
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setProvider: function(provider) {
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if (provider === this._provider) {
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return;
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}
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if (this._provider) {
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var events = this.require("sdk/system/events");
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events.emit("devtools-unloaded", {});
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delete this.require;
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this._provider.unload("newprovider");
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}
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this._provider = provider;
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this._provider.invisibleToDebugger = this.invisibleToDebugger;
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this._provider.load();
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this.require = loader.Require(this._provider.loader, { id: "devtools" });
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if (this._mainid) {
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this.main(this._mainid);
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}
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},
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/**
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* Choose a default tools provider based on the preferences.
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*/
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_chooseProvider: function() {
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if (Services.prefs.prefHasUserValue("devtools.loader.srcdir")) {
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this.setProvider(new SrcdirProvider());
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} else {
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this.setProvider(new BuiltinProvider());
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}
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},
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/**
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* Reload the current provider.
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*/
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reload: function() {
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var events = this.require("sdk/system/events");
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events.emit("startupcache-invalidate", {});
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events.emit("devtools-unloaded", {});
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this._provider.unload("reload");
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delete this._provider;
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this._chooseProvider();
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},
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/**
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* Sets whether the compartments loaded by this instance should be invisible
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* to the debugger. Invisibility is needed for loaders that support debugging
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* of chrome code. This is true of remote target environments, like Fennec or
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* B2G. It is not the default case for desktop Firefox because we offer the
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* Browser Toolbox for chrome debugging there, which uses its own, separate
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* loader instance.
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* @see browser/devtools/framework/ToolboxProcess.jsm
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*/
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invisibleToDebugger: Services.appinfo.name !== "Firefox"
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};
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// Export the standard instance of DevToolsLoader used by the tools.
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this.devtools = new DevToolsLoader();
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