gnome-shell/js/ui/sessionMode.js

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// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
const Gio = imports.gi.Gio;
const GLib = imports.gi.GLib;
const Lang = imports.lang;
const Mainloop = imports.mainloop;
const Signals = imports.signals;
const FileUtils = imports.misc.fileUtils;
const Main = imports.ui.main;
const Params = imports.misc.params;
const Config = imports.misc.config;
const DEFAULT_MODE = 'restrictive';
const _modes = {
'restrictive': {
parentMode: null,
stylesheetName: 'gnome-shell.css',
overridesSchema: 'org.gnome.shell.overrides',
hasOverview: false,
showCalendarEvents: false,
allowSettings: false,
allowExtensions: false,
allowScreencast: false,
enabledExtensions: [],
hasRunDialog: false,
hasWorkspaces: false,
hasWindows: false,
hasNotifications: false,
isLocked: false,
isGreeter: false,
isPrimary: false,
unlockDialog: null,
components: [],
panel: {
left: [],
center: [],
right: []
},
panelStyle: null
},
'gdm': {
hasNotifications: true,
isGreeter: true,
isPrimary: true,
unlockDialog: imports.gdm.loginDialog.LoginDialog,
components: ['polkitAgent'],
panel: {
left: [],
center: ['dateMenu'],
right: ['a11yGreeter', 'keyboard', 'aggregateMenu'],
},
panelStyle: 'login-screen'
},
'lock-screen': {
isLocked: true,
isGreeter: undefined,
unlockDialog: undefined,
components: ['polkitAgent', 'telepathyClient'],
panel: {
left: [],
center: [],
right: ['aggregateMenu']
},
panelStyle: 'lock-screen'
},
'unlock-dialog': {
isLocked: true,
unlockDialog: undefined,
components: ['polkitAgent', 'telepathyClient'],
panel: {
left: [],
center: [],
right: ['a11y', 'keyboard', 'aggregateMenu']
},
panelStyle: 'unlock-screen'
},
'user': {
hasOverview: true,
showCalendarEvents: true,
allowSettings: true,
allowExtensions: true,
allowScreencast: true,
hasRunDialog: true,
hasWorkspaces: true,
hasWindows: true,
hasNotifications: true,
isLocked: false,
isPrimary: true,
unlockDialog: imports.ui.unlockDialog.UnlockDialog,
components: Config.HAVE_NETWORKMANAGER ?
['networkAgent', 'polkitAgent', 'telepathyClient',
'keyring', 'autorunManager', 'automountManager'] :
['polkitAgent', 'telepathyClient',
'keyring', 'autorunManager', 'automountManager'],
panel: {
left: ['activities', 'appMenu'],
center: ['dateMenu'],
right: ['a11y', 'keyboard', 'aggregateMenu']
}
}
};
function _loadMode(file, info) {
let name = info.get_name();
let suffix = name.indexOf('.json');
let modeName = suffix == -1 ? name : name.slice(name, suffix);
if (_modes.hasOwnProperty(modeName))
return;
let fileContent, success, tag, newMode;
try {
[success, fileContent, tag] = file.load_contents(null);
newMode = JSON.parse(fileContent);
} catch(e) {
return;
}
_modes[modeName] = {};
let propBlacklist = ['unlockDialog'];
for (let prop in _modes[DEFAULT_MODE]) {
if (newMode[prop] !== undefined &&
propBlacklist.indexOf(prop) == -1)
_modes[modeName][prop] = newMode[prop];
}
_modes[modeName]['isPrimary'] = true;
}
function _loadModes() {
FileUtils.collectFromDatadirs('modes', false, _loadMode);
}
function listModes() {
_loadModes();
Mainloop.idle_add(function() {
let names = Object.getOwnPropertyNames(_modes);
for (let i = 0; i < names.length; i++)
if (_modes[names[i]].isPrimary)
print(names[i]);
Mainloop.quit('listModes');
});
Mainloop.run('listModes');
}
const SessionMode = new Lang.Class({
Name: 'SessionMode',
_init: function() {
_loadModes();
let isPrimary = (_modes[global.session_mode] &&
_modes[global.session_mode].isPrimary);
let mode = isPrimary ? global.session_mode : 'user';
this._modeStack = [mode];
this._sync();
},
pushMode: function(mode) {
this._modeStack.push(mode);
this._sync();
},
popMode: function(mode) {
if (this.currentMode != mode || this._modeStack.length === 1)
throw new Error("Invalid SessionMode.popMode");
this._modeStack.pop();
this._sync();
},
switchMode: function(to) {
if (this.currentMode == to)
return;
this._modeStack[this._modeStack.length - 1] = to;
this._sync();
},
get currentMode() {
return this._modeStack[this._modeStack.length - 1];
},
_sync: function() {
let params = _modes[this.currentMode];
let defaults;
if (params.parentMode)
defaults = Params.parse(_modes[params.parentMode],
_modes[DEFAULT_MODE]);
else
defaults = _modes[DEFAULT_MODE];
params = Params.parse(params, defaults);
// A simplified version of Lang.copyProperties, handles
// undefined as a special case for "no change / inherit from previous mode"
for (let prop in params) {
if (params[prop] !== undefined)
this[prop] = params[prop];
}
this.emit('updated');
}
});
Signals.addSignalMethods(SessionMode.prototype);