gecko-dev/devtools/client/memory/panel.js

76 строки
2.1 KiB
JavaScript

/* 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");
const { Task } = require("devtools/shared/task");
const EventEmitter = require("devtools/shared/event-emitter");
const { MemoryFront } = require("devtools/shared/fronts/memory");
const HeapAnalysesClient = require("devtools/shared/heapsnapshot/HeapAnalysesClient");
const promise = require("promise");
function MemoryPanel(iframeWindow, toolbox) {
this.panelWin = iframeWindow;
this._toolbox = toolbox;
EventEmitter.decorate(this);
}
MemoryPanel.prototype = {
open: Task.async(function* () {
if (this._opening) {
return this._opening;
}
this.panelWin.gToolbox = this._toolbox;
this.panelWin.gTarget = this.target;
const rootForm = yield this.target.root;
this.panelWin.gFront = new MemoryFront(this.target.client,
this.target.form,
rootForm);
this.panelWin.gHeapAnalysesClient = new HeapAnalysesClient();
yield this.panelWin.gFront.attach();
this._opening = this.panelWin.initialize().then(() => {
this.isReady = true;
this.emit("ready");
return this;
});
return this._opening;
}),
// DevToolPanel API
get target() {
return this._toolbox.target;
},
destroy: Task.async(function* () {
// Make sure this panel is not already destroyed.
if (this._destroyer) {
return this._destroyer;
}
yield this.panelWin.gFront.detach();
this._destroyer = this.panelWin.destroy().then(() => {
// Destroy front to ensure packet handler is removed from client
this.panelWin.gFront.destroy();
this.panelWin.gHeapAnalysesClient.destroy();
this.panelWin = null;
this._opening = null;
this.isReady = false;
this.emit("destroyed");
});
return this._destroyer;
})
};
exports.MemoryPanel = MemoryPanel;