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Diffstat (limited to 'js/ui/sessionMode.js')
| -rw-r--r-- | js/ui/sessionMode.js | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/js/ui/sessionMode.js b/js/ui/sessionMode.js new file mode 100644 index 0000000..b38bcdf --- /dev/null +++ b/js/ui/sessionMode.js @@ -0,0 +1,206 @@ +// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*- +/* exported SessionMode, listModes */ + +const GLib = imports.gi.GLib; +const Signals = imports.misc.signals; + +const FileUtils = imports.misc.fileUtils; +const Params = imports.misc.params; + +const Config = imports.misc.config; + +const DEFAULT_MODE = 'restrictive'; + +const USER_SESSION_COMPONENTS = [ + 'polkitAgent', 'telepathyClient', 'keyring', + 'autorunManager', 'automountManager', +]; + +if (Config.HAVE_NETWORKMANAGER) + USER_SESSION_COMPONENTS.push('networkAgent'); + +const _modes = { + 'restrictive': { + parentMode: null, + stylesheetName: 'gnome-shell.css', + themeResourceName: 'gnome-shell-theme.gresource', + hasOverview: false, + showCalendarEvents: false, + showWelcomeDialog: false, + allowSettings: false, + allowScreencast: false, + enabledExtensions: [], + hasRunDialog: false, + hasWorkspaces: false, + hasWindows: false, + hasNotifications: false, + hasWmMenus: 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: Config.HAVE_NETWORKMANAGER + ? ['networkAgent', 'polkitAgent'] + : ['polkitAgent'], + panel: { + left: [], + center: ['dateMenu'], + right: ['dwellClick', 'a11y', 'keyboard', 'quickSettings'], + }, + panelStyle: 'login-screen', + }, + + 'unlock-dialog': { + isLocked: true, + unlockDialog: undefined, + components: ['polkitAgent', 'telepathyClient'], + panel: { + left: [], + center: [], + right: ['dwellClick', 'a11y', 'keyboard', 'quickSettings'], + }, + panelStyle: 'unlock-screen', + }, + + 'user': { + hasOverview: true, + showCalendarEvents: true, + showWelcomeDialog: true, + allowSettings: true, + allowScreencast: true, + hasRunDialog: true, + hasWorkspaces: true, + hasWindows: true, + hasWmMenus: true, + hasNotifications: true, + isLocked: false, + isPrimary: true, + unlockDialog: imports.ui.unlockDialog.UnlockDialog, + components: USER_SESSION_COMPONENTS, + panel: { + left: ['activities', 'appMenu'], + center: ['dateMenu'], + right: ['screenRecording', 'screenSharing', 'dwellClick', 'a11y', 'keyboard', 'quickSettings'], + }, + }, +}; + +function _loadMode(file, info) { + let name = info.get_name(); + let suffix = name.indexOf('.json'); + let modeName = suffix == -1 ? name : name.slice(name, suffix); + + if (Object.prototype.hasOwnProperty.call(_modes, modeName)) + return; + + let fileContent, success_, newMode; + try { + [success_, fileContent] = file.load_contents(null); + const decoder = new TextDecoder(); + newMode = JSON.parse(decoder.decode(fileContent)); + } catch (e) { + return; + } + + _modes[modeName] = {}; + const excludedProps = ['unlockDialog']; + for (let prop in _modes[DEFAULT_MODE]) { + if (newMode[prop] !== undefined && + !excludedProps.includes(prop)) + _modes[modeName][prop] = newMode[prop]; + } + _modes[modeName]['isPrimary'] = true; +} + +function _loadModes() { + FileUtils.collectFromDatadirs('modes', false, _loadMode); +} + +function listModes() { + _loadModes(); + let loop = new GLib.MainLoop(null, false); + let id = GLib.idle_add(GLib.PRIORITY_DEFAULT, () => { + let names = Object.getOwnPropertyNames(_modes); + for (let i = 0; i < names.length; i++) { + if (_modes[names[i]].isPrimary) + print(names[i]); + } + loop.quit(); + }); + GLib.Source.set_name_by_id(id, '[gnome-shell] listModes'); + loop.run(); +} + +var SessionMode = class extends Signals.EventEmitter { + constructor() { + super(); + + _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(mode) { + console.debug(`sessionMode: Pushing mode ${mode}`); + this._modeStack.push(mode); + this._sync(); + } + + popMode(mode) { + if (this.currentMode != mode || this._modeStack.length === 1) + throw new Error("Invalid SessionMode.popMode"); + + console.debug(`sessionMode: Popping mode ${mode}`); + this._modeStack.pop(); + this._sync(); + } + + switchMode(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() { + 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'); + } +}; |