зеркало из https://github.com/mozilla/gecko-dev.git
60 строки
1.6 KiB
JavaScript
60 строки
1.6 KiB
JavaScript
/* 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 { PerfFront } = require("devtools/shared/fronts/perf");
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const { getPreferenceFront } = require("devtools/shared/fronts/preference");
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loader.lazyRequireGetter(this, "EventEmitter", "devtools/shared/event-emitter");
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class PerformancePanel {
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constructor(iframeWindow, toolbox) {
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this.panelWin = iframeWindow;
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this.toolbox = toolbox;
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EventEmitter.decorate(this);
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}
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/**
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* Open is effectively an asynchronous constructor.
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* @return {Promise} Resolves when the Perf tool completes opening.
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*/
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open() {
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if (!this._opening) {
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this._opening = this._doOpen();
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}
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return this._opening;
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}
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async _doOpen() {
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this.panelWin.gToolbox = this.toolbox;
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this.panelWin.gTarget = this.target;
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const rootForm = await this.target.root;
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const perfFront = new PerfFront(this.target.client, rootForm);
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const preferenceFront = getPreferenceFront(this.target.client, rootForm);
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this.isReady = true;
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this.emit("ready");
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this.panelWin.gInit(this.toolbox, perfFront, preferenceFront);
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return this;
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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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async destroy() {
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// Make sure this panel is not already destroyed.
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if (this._destroyed) {
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return;
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}
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this.panelWin.gDestroy();
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this.emit("destroyed");
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this._destroyed = true;
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}
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}
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exports.PerformancePanel = PerformancePanel;
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