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

88 lines
2.3 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 EventEmitter = require("devtools/shared/event-emitter");
loader.lazyRequireGetter(this, "StorageFront",
"devtools/shared/fronts/storage", true);
loader.lazyRequireGetter(this, "StorageUI",
"devtools/client/storage/ui", true);
var StoragePanel = this.StoragePanel =
function StoragePanel(panelWin, toolbox) {
EventEmitter.decorate(this);
this._toolbox = toolbox;
this._target = toolbox.target;
this._panelWin = panelWin;
this.destroy = this.destroy.bind(this);
};
exports.StoragePanel = StoragePanel;
StoragePanel.prototype = {
get target() {
return this._toolbox.target;
},
get panelWindow() {
return this._panelWin;
},
/**
* open is effectively an asynchronous constructor
*/
open: function () {
let targetPromise;
// We always interact with the target as if it were remote
if (!this.target.isRemote) {
targetPromise = this.target.makeRemote();
} else {
targetPromise = Promise.resolve(this.target);
}
return targetPromise.then(() => {
this.target.on("close", this.destroy);
this._front = new StorageFront(this.target.client, this.target.form);
this.UI = new StorageUI(this._front, this._target,
this._panelWin, this._toolbox);
this.isReady = true;
this.emit("ready");
return this;
}).catch(e => {
console.log("error while opening storage panel", e);
this.destroy();
});
},
/**
* Destroy the storage inspector.
*/
destroy: function () {
if (!this._destroyed) {
this.UI.destroy();
this.UI = null;
// Destroy front to ensure packet handler is removed from client
this._front.destroy();
this._front = null;
this._destroyed = true;
this._target.off("close", this.destroy);
this._target = null;
this._toolbox = null;
this._panelWin = null;
}
return Promise.resolve(null);
},
};