gecko-dev/b2g/components/OopCommandLine.js

48 lines
2.0 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/. */
const { classes: Cc, interfaces: Ci, utils: Cu } = Components;
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "Services", "resource://gre/modules/Services.jsm");
function oopCommandlineHandler() {
}
oopCommandlineHandler.prototype = {
handle: function(cmdLine) {
let oopFlag = cmdLine.handleFlag("oop", false);
if (oopFlag) {
/**
* Manipulate preferences by adding to the *default* branch. Adding
* to the default branch means the changes we make won"t get written
* back to user preferences.
*/
let prefs = Services.prefs
let branch = prefs.getDefaultBranch("");
try {
// Turn on all OOP services, making desktop run similar to phone
// environment
branch.setBoolPref("dom.ipc.tabs.disabled", false);
branch.setBoolPref("layers.acceleration.disabled", false);
branch.setBoolPref("layers.offmainthreadcomposition.enabled", true);
branch.setBoolPref("layers.offmainthreadcomposition.async-animations", true);
branch.setBoolPref("layers.async-video.enabled", true);
branch.setBoolPref("layers.async-pan-zoom.enabled", true);
branch.setCharPref("gfx.content.azure.backends", "cairo");
} catch (e) { }
}
if (cmdLine.state == Ci.nsICommandLine.STATE_REMOTE_AUTO) {
cmdLine.preventDefault = true;
}
},
helpInfo: " --oop Use out-of-process model in B2G\n",
classID: Components.ID("{e30b0e13-2d12-4cb0-bc4c-4e617a1bf76e}"),
QueryInterface: XPCOMUtils.generateQI([Ci.nsICommandLineHandler]),
};
this.NSGetFactory = XPCOMUtils.generateNSGetFactory([oopCommandlineHandler]);