gecko/b2g/chrome/content/shell.js

404 lines
13 KiB
JavaScript

/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 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/. */
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cu = Components.utils;
const CC = Components.Constructor;
const Cr = Components.results;
const LocalFile = CC('@mozilla.org/file/local;1',
'nsILocalFile',
'initWithPath');
Cu.import('resource://gre/modules/XPCOMUtils.jsm');
Cu.import('resource://gre/modules/Services.jsm');
XPCOMUtils.defineLazyGetter(Services, 'env', function() {
return Cc['@mozilla.org/process/environment;1']
.getService(Ci.nsIEnvironment);
});
XPCOMUtils.defineLazyGetter(Services, 'ss', function() {
return Cc['@mozilla.org/content/style-sheet-service;1']
.getService(Ci.nsIStyleSheetService);
});
XPCOMUtils.defineLazyGetter(Services, 'idle', function() {
return Cc['@mozilla.org/widget/idleservice;1']
.getService(Ci.nsIIdleService);
});
XPCOMUtils.defineLazyServiceGetter(Services, 'fm', function(){
return Cc['@mozilla.org/focus-managr;1']
.getService(Ci.nsFocusManager);
});
// FIXME Bug 707625
// until we have a proper security model, add some rights to
// the pre-installed web applications
// XXX never grant 'content-camera' to non-gaia apps
function addPermissions(urls) {
let permissions = [
'indexedDB', 'indexedDB-unlimited', 'webapps-manage', 'offline-app', 'content-camera'
];
urls.forEach(function(url) {
let uri = Services.io.newURI(url, null, null);
let allow = Ci.nsIPermissionManager.ALLOW_ACTION;
permissions.forEach(function(permission) {
Services.perms.add(uri, permission, allow);
});
});
}
var shell = {
// FIXME/bug 678695: this should be a system setting
preferredScreenBrightness: 1.0,
isDebug: false,
get contentBrowser() {
delete this.contentBrowser;
return this.contentBrowser = document.getElementById('homescreen');
},
get homeURL() {
try {
let homeSrc = Services.env.get('B2G_HOMESCREEN');
if (homeSrc)
return homeSrc;
} catch (e) {}
let urls = Services.prefs.getCharPref('browser.homescreenURL').split(',');
for (let i = 0; i < urls.length; i++) {
let url = urls[i];
if (url.substring(0, 7) != 'file://')
return url;
let file = new LocalFile(url.substring(7, url.length));
if (file.exists())
return url;
}
return null;
},
start: function shell_init() {
let homeURL = this.homeURL;
if (!homeURL) {
let msg = 'Fatal error during startup: [No homescreen found]';
return alert(msg);
}
window.controllers.appendController(this);
window.addEventListener('keypress', this);
window.addEventListener('MozApplicationManifest', this);
window.addEventListener("AppCommand", this);
window.addEventListener('mozfullscreenchange', this);
this.contentBrowser.addEventListener('load', this, true);
try {
Services.io.offline = false;
let fileScheme = 'file://';
if (homeURL.substring(0, fileScheme.length) == fileScheme) {
homeURL = 'http://localhost:7777' + homeURL.replace(fileScheme, '');
}
addPermissions([homeURL]);
} catch (e) {
let msg = 'Fatal error during startup: [' + e + '[' + homeURL + ']';
return alert(msg);
}
// Load webapi.js as a frame script
let frameScriptUrl = 'chrome://browser/content/webapi.js';
try {
messageManager.loadFrameScript(frameScriptUrl, true);
} catch (e) {
dump('Error loading ' + frameScriptUrl + ' as a frame script: ' + e + '\n');
}
let browser = this.contentBrowser;
browser.homePage = homeURL;
browser.goHome();
},
stop: function shell_stop() {
window.controllers.removeController(this);
window.removeEventListener('keypress', this);
window.removeEventListener('MozApplicationManifest', this);
window.removeEventListener('AppCommand', this);
},
supportsCommand: function shell_supportsCommand(cmd) {
let isSupported = false;
switch (cmd) {
case 'cmd_close':
isSupported = true;
break;
default:
isSupported = false;
break;
}
return isSupported;
},
isCommandEnabled: function shell_isCommandEnabled(cmd) {
return true;
},
doCommand: function shell_doCommand(cmd) {
switch (cmd) {
case 'cmd_close':
content.postMessage('appclose', '*');
break;
}
},
toggleDebug: function shell_toggleDebug() {
this.isDebug = !this.isDebug;
if (this.isDebug) {
Services.prefs.setBoolPref("layers.acceleration.draw-fps", true);
Services.prefs.setBoolPref("nglayout.debug.paint_flashing", true);
} else {
Services.prefs.setBoolPref("layers.acceleration.draw-fps", false);
Services.prefs.setBoolPref("nglayout.debug.paint_flashing", false);
}
},
changeVolume: function shell_changeVolume(aDelta) {
let audioManager = Cc["@mozilla.org/telephony/audiomanager;1"].getService(Ci.nsIAudioManager);
let steps = 10;
try {
steps = Services.prefs.getIntPref("media.volume.steps");
if (steps <= 0)
steps = 1;
} catch(e) {}
let volume = audioManager.masterVolume + aDelta / steps;
if (volume > 1)
volume = 1;
if (volume < 0)
volume = 0;
audioManager.masterVolume = volume;
},
handleEvent: function shell_handleEvent(evt) {
switch (evt.type) {
case 'keypress':
switch (evt.keyCode) {
case evt.DOM_VK_HOME:
this.sendEvent(content, 'home');
break;
case evt.DOM_VK_SLEEP:
this.toggleScreen();
let details = {
'enabled': screen.mozEnabled
};
this.sendEvent(content, 'sleep', details);
break;
case evt.DOM_VK_ESCAPE:
if (evt.defaultPrevented)
return;
this.doCommand('cmd_close');
break;
}
break;
case 'AppCommand':
switch (evt.command) {
case 'Menu':
this.sendEvent(content, 'menu');
break;
case 'Search':
this.toggleDebug();
break;
case 'VolumeUp':
this.changeVolume(1);
break;
case 'VolumeDown':
this.changeVolume(-1);
break;
}
break;
case 'mozfullscreenchange':
// When the screen goes fullscreen make sure to set the focus to the
// main window so noboby can prevent the ESC key to get out fullscreen
// mode
if (document.mozFullScreen)
Services.fm.focusedWindow = window;
break;
case 'load':
this.contentBrowser.removeEventListener('load', this, true);
this.turnScreenOn();
let chromeWindow = window.QueryInterface(Ci.nsIDOMChromeWindow);
chromeWindow.browserDOMWindow = new nsBrowserAccess();
this.sendEvent(window, 'ContentStart');
break;
case 'MozApplicationManifest':
try {
if (!Services.prefs.getBoolPref('browser.cache.offline.enable'))
return;
let contentWindow = evt.originalTarget.defaultView;
let documentElement = contentWindow.document.documentElement;
if (!documentElement)
return;
let manifest = documentElement.getAttribute('manifest');
if (!manifest)
return;
let documentURI = contentWindow.document.documentURIObject;
if (!Services.perms.testPermission(documentURI, 'offline-app')) {
if (Services.prefs.getBoolPref('browser.offline-apps.notify')) {
// FIXME Bug 710729 - Add a UI for offline cache notifications
return;
}
return;
}
Services.perms.add(documentURI, 'offline-app',
Ci.nsIPermissionManager.ALLOW_ACTION);
let manifestURI = Services.io.newURI(manifest, null, documentURI);
let updateService = Cc['@mozilla.org/offlinecacheupdate-service;1']
.getService(Ci.nsIOfflineCacheUpdateService);
updateService.scheduleUpdate(manifestURI, documentURI, window);
} catch (e) {
dump('Error while creating offline cache: ' + e + '\n');
}
break;
}
},
sendEvent: function shell_sendEvent(content, type, details) {
let event = content.document.createEvent('CustomEvent');
event.initCustomEvent(type, true, true, details ? details : {});
content.dispatchEvent(event);
},
toggleScreen: function shell_toggleScreen() {
if (screen.mozEnabled)
this.turnScreenOff();
else
this.turnScreenOn();
},
turnScreenOff: function shell_turnScreenOff() {
screen.mozEnabled = false;
screen.mozBrightness = 0.0;
},
turnScreenOn: function shell_turnScreenOn() {
screen.mozEnabled = true;
screen.mozBrightness = this.preferredScreenBrightness;
}
};
(function PowerManager() {
let idleHandler = {
observe: function(subject, topic, time) {
if (topic === "idle") {
// TODO: Check wakelock status. See bug 697132.
shell.turnScreenOff();
}
},
}
let idleTimeout = Services.prefs.getIntPref("power.screen.timeout");
if (idleTimeout) {
Services.idle.addIdleObserver(idleHandler, idleTimeout);
}
})();
function nsBrowserAccess() {
}
nsBrowserAccess.prototype = {
QueryInterface: XPCOMUtils.generateQI([Ci.nsIBrowserDOMWindow]),
openURI: function openURI(uri, opener, where, context) {
// TODO This should be replaced by an 'open-browser-window' intent
let contentWindow = content.wrappedJSObject;
if (!('getApplicationManager' in contentWindow))
return null;
let applicationManager = contentWindow.getApplicationManager();
if (!applicationManager)
return null;
let url = uri ? uri.spec : 'about:blank';
let window = applicationManager.launch(url, where);
return window.contentWindow;
},
openURIInFrame: function openURIInFrame(uri, opener, where, context) {
throw new Error('Not Implemented');
},
isTabContentWindow: function isTabContentWindow(contentWindow) {
return contentWindow == window;
}
};
// Pipe `console` log messages to the nsIConsoleService which writes them
// to logcat.
Services.obs.addObserver(function onConsoleAPILogEvent(subject, topic, data) {
let message = subject.wrappedJSObject;
let prefix = "Content JS " + message.level.toUpperCase() +
" at " + message.filename + ":" + message.lineNumber +
" in " + (message.functionName || "anonymous") + ": ";
Services.console.logStringMessage(prefix + Array.join(message.arguments, " "));
}, "console-api-log-event", false);
(function Repl() {
if (!Services.prefs.getBoolPref('b2g.remote-js.enabled')) {
return;
}
const prompt = 'JS> ';
let output;
let reader = {
onInputStreamReady : function repl_readInput(input) {
let sin = Cc['@mozilla.org/scriptableinputstream;1']
.createInstance(Ci.nsIScriptableInputStream);
sin.init(input);
try {
let val = eval(sin.read(sin.available()));
let ret = (typeof val === 'undefined') ? 'undefined\n' : val + '\n';
output.write(ret, ret.length);
// TODO: check if socket has been closed
} catch (e) {
if (e.result === Cr.NS_BASE_STREAM_CLOSED ||
(typeof e === 'object' && e.result === Cr.NS_BASE_STREAM_CLOSED)) {
return;
}
let message = (typeof e === 'object') ? e.message + '\n' : e + '\n';
output.write(message, message.length);
}
output.write(prompt, prompt.length);
input.asyncWait(reader, 0, 0, Services.tm.mainThread);
}
}
let listener = {
onSocketAccepted: function repl_acceptConnection(serverSocket, clientSocket) {
dump('Accepted connection on ' + clientSocket.host + '\n');
let input = clientSocket.openInputStream(Ci.nsITransport.OPEN_BLOCKING, 0, 0)
.QueryInterface(Ci.nsIAsyncInputStream);
output = clientSocket.openOutputStream(Ci.nsITransport.OPEN_BLOCKING, 0, 0);
output.write(prompt, prompt.length);
input.asyncWait(reader, 0, 0, Services.tm.mainThread);
}
}
let serverPort = Services.prefs.getIntPref('b2g.remote-js.port');
let serverSocket = Cc['@mozilla.org/network/server-socket;1']
.createInstance(Ci.nsIServerSocket);
serverSocket.init(serverPort, true, -1);
dump('Opened socket on ' + serverSocket.port + '\n');
serverSocket.asyncListen(listener);
})();