michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: "use strict";
michael@0: 
michael@0: const {Cc, Ci, Cu} = require("chrome");
michael@0: 
michael@0: loader.lazyImporter(this, "devtools", "resource://gre/modules/devtools/Loader.jsm");
michael@0: loader.lazyImporter(this, "promise", "resource://gre/modules/Promise.jsm", "Promise");
michael@0: loader.lazyGetter(this, "HUDService", () => require("devtools/webconsole/hudservice"));
michael@0: loader.lazyGetter(this, "EventEmitter", () => require("devtools/toolkit/event-emitter"));
michael@0: loader.lazyImporter(this, "gDevTools", "resource:///modules/devtools/gDevTools.jsm");
michael@0: 
michael@0: /**
michael@0:  * A DevToolPanel that controls the Web Console.
michael@0:  */
michael@0: function WebConsolePanel(iframeWindow, toolbox)
michael@0: {
michael@0:   this._frameWindow = iframeWindow;
michael@0:   this._toolbox = toolbox;
michael@0:   EventEmitter.decorate(this);
michael@0: }
michael@0: 
michael@0: exports.WebConsolePanel = WebConsolePanel;
michael@0: 
michael@0: WebConsolePanel.prototype = {
michael@0:   hud: null,
michael@0: 
michael@0:   /**
michael@0:    * Called by the WebConsole's onkey command handler.
michael@0:    * If the WebConsole is opened, check if the JSTerm's input line has focus.
michael@0:    * If not, focus it.
michael@0:    */
michael@0:   focusInput: function WCP_focusInput()
michael@0:   {
michael@0:     let inputNode = this.hud.jsterm.inputNode;
michael@0: 
michael@0:     if (!inputNode.getAttribute("focused"))
michael@0:     {
michael@0:       inputNode.focus();
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   /**
michael@0:    * Open is effectively an asynchronous constructor.
michael@0:    *
michael@0:    * @return object
michael@0:    *         A promise that is resolved when the Web Console completes opening.
michael@0:    */
michael@0:   open: function WCP_open()
michael@0:   {
michael@0:     let parentDoc = this._toolbox.doc;
michael@0:     let iframe = parentDoc.getElementById("toolbox-panel-iframe-webconsole");
michael@0:     iframe.className = "web-console-frame";
michael@0: 
michael@0:     // Make sure the iframe content window is ready.
michael@0:     let deferredIframe = promise.defer();
michael@0:     let win, doc;
michael@0:     if ((win = iframe.contentWindow) &&
michael@0:         (doc = win.document) &&
michael@0:         doc.readyState == "complete") {
michael@0:       deferredIframe.resolve(null);
michael@0:     }
michael@0:     else {
michael@0:       iframe.addEventListener("load", function onIframeLoad() {
michael@0:         iframe.removeEventListener("load", onIframeLoad, true);
michael@0:         deferredIframe.resolve(null);
michael@0:       }, true);
michael@0:     }
michael@0: 
michael@0:     // Local debugging needs to make the target remote.
michael@0:     let promiseTarget;
michael@0:     if (!this.target.isRemote) {
michael@0:       promiseTarget = this.target.makeRemote();
michael@0:     }
michael@0:     else {
michael@0:       promiseTarget = promise.resolve(this.target);
michael@0:     }
michael@0: 
michael@0:     // 1. Wait for the iframe to load.
michael@0:     // 2. Wait for the remote target.
michael@0:     // 3. Open the Web Console.
michael@0:     return deferredIframe.promise
michael@0:       .then(() => promiseTarget)
michael@0:       .then((aTarget) => {
michael@0:         this._frameWindow._remoteTarget = aTarget;
michael@0: 
michael@0:         let webConsoleUIWindow = iframe.contentWindow.wrappedJSObject;
michael@0:         let chromeWindow = iframe.ownerDocument.defaultView;
michael@0:         return HUDService.openWebConsole(this.target, webConsoleUIWindow,
michael@0:                                          chromeWindow);
michael@0:       })
michael@0:       .then((aWebConsole) => {
michael@0:         this.hud = aWebConsole;
michael@0:         this._isReady = true;
michael@0:         this.emit("ready");
michael@0:         return this;
michael@0:       }, (aReason) => {
michael@0:         let msg = "WebConsolePanel open failed. " +
michael@0:                   aReason.error + ": " + aReason.message;
michael@0:         dump(msg + "\n");
michael@0:         Cu.reportError(msg);
michael@0:       });
michael@0:   },
michael@0: 
michael@0:   get target() this._toolbox.target,
michael@0: 
michael@0:   _isReady: false,
michael@0:   get isReady() this._isReady,
michael@0: 
michael@0:   destroy: function WCP_destroy()
michael@0:   {
michael@0:     if (this._destroyer) {
michael@0:       return this._destroyer;
michael@0:     }
michael@0: 
michael@0:     this._destroyer = this.hud.destroy();
michael@0:     this._destroyer.then(() => this.emit("destroyed"));
michael@0: 
michael@0:     return this._destroyer;
michael@0:   },
michael@0: };