tenfourfox/b2g/components/DebuggerActors.js

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2017-04-19 07:56:45 +00:00
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- /
/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
/* 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 { Cu } = require("chrome");
const DevToolsUtils = require("devtools/shared/DevToolsUtils");
const promise = require("promise");
const { XPCOMUtils } = require("resource://gre/modules/XPCOMUtils.jsm");
const { BrowserTabList } = require("devtools/server/actors/webbrowser");
XPCOMUtils.defineLazyGetter(this, "Frames", function() {
const { Frames } =
Cu.import("resource://gre/modules/Frames.jsm", {});
return Frames;
});
/**
* Unlike the original BrowserTabList which iterates over XUL windows, we
* override many portions to refer to Frames for the info needed here.
*/
function B2GTabList(connection) {
BrowserTabList.call(this, connection);
this._listening = false;
}
B2GTabList.prototype = Object.create(BrowserTabList.prototype);
B2GTabList.prototype._getBrowsers = function() {
return Frames.list().filter(frame => {
// Ignore app frames
return !frame.getAttribute("mozapp");
});
};
B2GTabList.prototype._getSelectedBrowser = function() {
return this._getBrowsers().find(frame => {
// Find the one visible browser (if any)
return !frame.classList.contains("hidden");
});
};
B2GTabList.prototype._checkListening = function() {
// The conditions from BrowserTabList are merged here, since we must listen to
// all events with our observer design.
this._listenForEventsIf(this._onListChanged && this._mustNotify ||
this._actorByBrowser.size > 0);
};
B2GTabList.prototype._listenForEventsIf = function(shouldListen) {
if (this._listening != shouldListen) {
let op = shouldListen ? "addObserver" : "removeObserver";
Frames[op](this);
this._listening = shouldListen;
}
};
B2GTabList.prototype.onFrameCreated = function(frame) {
let mozapp = frame.getAttribute("mozapp");
if (mozapp) {
// Ignore app frames
return;
}
this._notifyListChanged();
this._checkListening();
};
B2GTabList.prototype.onFrameDestroyed = function(frame) {
let mozapp = frame.getAttribute("mozapp");
if (mozapp) {
// Ignore app frames
return;
}
let actor = this._actorByBrowser.get(frame);
if (actor) {
this._handleActorClose(actor, frame);
}
};
exports.B2GTabList = B2GTabList;