gecko-dev/browser/devtools/profiler/panel.js

70 lines
1.9 KiB
JavaScript

/* -*- Mode: javascript; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const {Cc, Ci, Cu, Cr} = require("chrome");
Cu.import("resource://gre/modules/Task.jsm");
loader.lazyRequireGetter(this, "promise");
loader.lazyRequireGetter(this, "EventEmitter",
"devtools/toolkit/event-emitter");
loader.lazyRequireGetter(this, "getProfilerConnection",
"devtools/profiler/shared", true);
loader.lazyRequireGetter(this, "ProfilerFront",
"devtools/profiler/shared", true);
function ProfilerPanel(iframeWindow, toolbox) {
this.panelWin = iframeWindow;
this._toolbox = toolbox;
EventEmitter.decorate(this);
}
exports.ProfilerPanel = ProfilerPanel;
ProfilerPanel.prototype = {
/**
* Open is effectively an asynchronous constructor.
*
* @return object
* A promise that is resolved when the Profiler completes opening.
*/
open: Task.async(function*() {
this._connection = getProfilerConnection(this._toolbox);
yield this._connection.open();
this.panelWin.gToolbox = this._toolbox;
this.panelWin.gTarget = this.target;
this.panelWin.gFront = new ProfilerFront(this._connection);
yield this.panelWin.startupProfiler();
this.isReady = true;
this.emit("ready");
return this;
}),
// DevToolPanel API
get target() this._toolbox.target,
destroy: Task.async(function*() {
// Make sure this panel is not already destroyed.
if (this._destroyed) {
return;
}
yield this.panelWin.shutdownProfiler();
// Destroy the connection to ensure packet handlers are removed from client.
this._connection.destroy();
this.emit("destroyed");
this._destroyed = true;
})
};