mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-05 16:46:26 +00:00
08997000eb
Backed out changeset 647025383676 (bug1202902) Backed out changeset d70c7fe532c6 (bug1202902)
93 lines
2.7 KiB
JavaScript
93 lines
2.7 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";
|
|
|
|
this.EXPORTED_SYMBOLS = ["MultiscreenHandler"];
|
|
|
|
const Ci = Components.interfaces;
|
|
const Cu = Components.utils;
|
|
|
|
Cu.import("resource://gre/modules/Services.jsm");
|
|
|
|
function debug(aStr) {
|
|
// dump("MultiscreenHandler: " + aStr + "\n");
|
|
}
|
|
|
|
var window = Services.wm.getMostRecentWindow("navigator:browser");
|
|
|
|
// Multi-screen support on b2g. The following implementation will open a new
|
|
// top-level window once we receive a display connected event.
|
|
var MultiscreenHandler = {
|
|
|
|
topLevelWindows: new Map(),
|
|
|
|
init: function init() {
|
|
Services.obs.addObserver(this, "display-changed", false);
|
|
Services.obs.addObserver(this, "xpcom-shutdown", false);
|
|
},
|
|
|
|
uninit: function uninit() {
|
|
Services.obs.removeObserver(this, "display-changed");
|
|
Services.obs.removeObserver(this, "xpcom-shutdown");
|
|
},
|
|
|
|
observe: function observe(aSubject, aTopic, aData) {
|
|
switch (aTopic) {
|
|
case "display-changed":
|
|
this.handleDisplayChangeEvent(aSubject);
|
|
break
|
|
case "xpcom-shutdown":
|
|
this.uninit();
|
|
break
|
|
}
|
|
},
|
|
|
|
openTopLevelWindow: function openTopLevelWindow(aDisplay) {
|
|
if (this.topLevelWindows.get(aDisplay.id)) {
|
|
debug("Top level window for display id: " + aDisplay.id + " has been opened.");
|
|
return;
|
|
}
|
|
|
|
let flags = Services.prefs.getCharPref("toolkit.defaultChromeFeatures") +
|
|
",mozDisplayId=" + aDisplay.id;
|
|
let remoteShellURL = Services.prefs.getCharPref("b2g.multiscreen.chrome_remote_url") +
|
|
"#" + aDisplay.id;
|
|
let win = Services.ww.openWindow(null, remoteShellURL, "myTopWindow" + aDisplay.id, flags, null);
|
|
|
|
this.topLevelWindows.set(aDisplay.id, win);
|
|
},
|
|
|
|
closeTopLevelWindow: function closeTopLevelWindow(aDisplay) {
|
|
let win = this.topLevelWindows.get(aDisplay.id);
|
|
|
|
if (win) {
|
|
win.close();
|
|
this.topLevelWindows.delete(aDisplay.id);
|
|
}
|
|
},
|
|
|
|
handleDisplayChangeEvent: function handleDisplayChangeEvent(aSubject) {
|
|
|
|
let display = aSubject.QueryInterface(Ci.nsIDisplayInfo);
|
|
let name = "multiscreen.enabled";
|
|
let req = window.navigator.mozSettings.createLock().get(name);
|
|
|
|
req.addEventListener("success", () => {
|
|
let isMultiscreenEnabled = req.result[name];
|
|
if (display.connected) {
|
|
if (isMultiscreenEnabled) {
|
|
this.openTopLevelWindow(display);
|
|
}
|
|
} else {
|
|
this.closeTopLevelWindow(display);
|
|
}
|
|
});
|
|
},
|
|
|
|
};
|
|
|
|
MultiscreenHandler.init();
|
|
this.MultiscreenHandler = MultiscreenHandler;
|