76 lines
2.2 KiB
JavaScript
76 lines
2.2 KiB
JavaScript
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
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/* 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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const { Cc, Ci, Cu, Cr } = require("chrome");
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const promise = require("promise");
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const EventEmitter = require("devtools/shared/event-emitter");
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const { CanvasFront } = require("devtools/shared/fronts/canvas");
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const DevToolsUtils = require("devtools/shared/DevToolsUtils");
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function CanvasDebuggerPanel(iframeWindow, toolbox) {
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this.panelWin = iframeWindow;
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this._toolbox = toolbox;
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this._destroyer = null;
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EventEmitter.decorate(this);
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}
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exports.CanvasDebuggerPanel = CanvasDebuggerPanel;
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CanvasDebuggerPanel.prototype = {
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/**
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* Open is effectively an asynchronous constructor.
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*
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* @return object
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* A promise that is resolved when the Canvas Debugger completes opening.
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*/
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open: function () {
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let targetPromise;
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// Local debugging needs to make the target remote.
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if (!this.target.isRemote) {
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targetPromise = this.target.makeRemote();
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} else {
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targetPromise = promise.resolve(this.target);
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}
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return targetPromise
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.then(() => {
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this.panelWin.gToolbox = this._toolbox;
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this.panelWin.gTarget = this.target;
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this.panelWin.gFront = new CanvasFront(this.target.client, this.target.form);
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return this.panelWin.startupCanvasDebugger();
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})
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.then(() => {
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this.isReady = true;
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this.emit("ready");
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return this;
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})
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.then(null, function onError(aReason) {
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DevToolsUtils.reportException("CanvasDebuggerPanel.prototype.open", aReason);
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});
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},
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// DevToolPanel API
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get target() {
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return this._toolbox.target;
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},
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destroy: function () {
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// Make sure this panel is not already destroyed.
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if (this._destroyer) {
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return this._destroyer;
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}
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return this._destroyer = this.panelWin.shutdownCanvasDebugger().then(() => {
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// Destroy front to ensure packet handler is removed from client
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this.panelWin.gFront.destroy();
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this.emit("destroyed");
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});
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}
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};
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