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/* 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 EventEmitter = require("resource://devtools/shared/event-emitter.js");
const HeapAnalysesClient = require("resource://devtools/shared/heapsnapshot/HeapAnalysesClient.js");
function MemoryPanel(iframeWindow, toolbox, commands) {
this.panelWin = iframeWindow;
this._toolbox = toolbox;
this._commands = commands;
const { BrowserLoader } = ChromeUtils.import(
"resource://devtools/shared/loader/browser-loader.js"
);
const browserRequire = BrowserLoader({
baseURI: "resource://devtools/client/memory/",
window: this.panelWin,
}).require;
this.initializer = browserRequire("devtools/client/memory/initializer");
this._onTargetAvailable = this._onTargetAvailable.bind(this);
EventEmitter.decorate(this);
}
MemoryPanel.prototype = {
async open() {
this.panelWin.gToolbox = this._toolbox;
this.panelWin.gHeapAnalysesClient = new HeapAnalysesClient();
await this.initializer.initialize(this._commands);
await this._commands.targetCommand.watchTargets({
types: [this._commands.targetCommand.TYPES.FRAME],
onAvailable: this._onTargetAvailable,
});
return this;
},
async _onTargetAvailable({ targetFront }) {
if (targetFront.isTopLevel) {
const front = await targetFront.getFront("memory");
await front.attach();
this.initializer.updateFront(front);
}
},
// DevToolPanel API
destroy() {
// Make sure this panel is not already destroyed.
if (this._destroyed) {
return;
}
this._destroyed = true;
this._commands.targetCommand.unwatchTargets({
types: [this._commands.targetCommand.TYPES.FRAME],
onAvailable: this._onTargetAvailable,
});
this.initializer.destroy();
this.panelWin.gHeapAnalysesClient.destroy();
this.panelWin = null;
this.emit("destroyed");
},
};
exports.MemoryPanel = MemoryPanel;
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