3b1330880f
When not using arrow notation with anonymous functions, we use Lang.bind() to bind `this` to named callbacks. However since ES5, this functionality is already provided by Function.prototype.bind() - in fact, Lang.bind() itself uses it when no extra arguments are specified. Just use the built-in function directly where possible, and use arrow notation in the few places where we pass additional arguments. https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/23
338 lines
14 KiB
JavaScript
338 lines
14 KiB
JavaScript
// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
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const AccountsService = imports.gi.AccountsService;
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const Clutter = imports.gi.Clutter;
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const Gio = imports.gi.Gio;
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const GLib = imports.gi.GLib;
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const Lang = imports.lang;
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const Shell = imports.gi.Shell;
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const St = imports.gi.St;
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const GObject = imports.gi.GObject;
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const BoxPointer = imports.ui.boxpointer;
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const SystemActions = imports.misc.systemActions;
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const Main = imports.ui.main;
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const PanelMenu = imports.ui.panelMenu;
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const PopupMenu = imports.ui.popupMenu;
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var AltSwitcher = new Lang.Class({
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Name: 'AltSwitcher',
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_init(standard, alternate) {
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this._standard = standard;
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this._standard.connect('notify::visible', this._sync.bind(this));
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if (this._standard instanceof St.Button)
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this._standard.connect('clicked',
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() => { this._clickAction.release(); });
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this._alternate = alternate;
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this._alternate.connect('notify::visible', this._sync.bind(this));
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if (this._alternate instanceof St.Button)
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this._alternate.connect('clicked',
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() => { this._clickAction.release(); });
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this._capturedEventId = global.stage.connect('captured-event', this._onCapturedEvent.bind(this));
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this._flipped = false;
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this._clickAction = new Clutter.ClickAction();
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this._clickAction.connect('long-press', this._onLongPress.bind(this));
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this.actor = new St.Bin();
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this.actor.connect('destroy', this._onDestroy.bind(this));
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this.actor.connect('notify::mapped', () => { this._flipped = false; });
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},
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_sync() {
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let childToShow = null;
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if (this._standard.visible && this._alternate.visible) {
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let [x, y, mods] = global.get_pointer();
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let altPressed = (mods & Clutter.ModifierType.MOD1_MASK) != 0;
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if (this._flipped)
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childToShow = altPressed ? this._standard : this._alternate;
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else
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childToShow = altPressed ? this._alternate : this._standard;
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} else if (this._standard.visible) {
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childToShow = this._standard;
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} else if (this._alternate.visible) {
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childToShow = this._alternate;
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}
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let childShown = this.actor.get_child();
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if (childShown != childToShow) {
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if (childShown) {
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if (childShown.fake_release)
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childShown.fake_release();
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childShown.remove_action(this._clickAction);
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}
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childToShow.add_action(this._clickAction);
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let hasFocus = this.actor.contains(global.stage.get_key_focus());
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this.actor.set_child(childToShow);
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if (hasFocus)
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childToShow.grab_key_focus();
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// The actors might respond to hover, so
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// sync the pointer to make sure they update.
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global.sync_pointer();
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}
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this.actor.visible = (childToShow != null);
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},
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_onDestroy() {
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if (this._capturedEventId > 0) {
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global.stage.disconnect(this._capturedEventId);
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this._capturedEventId = 0;
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}
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},
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_onCapturedEvent(actor, event) {
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let type = event.type();
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if (type == Clutter.EventType.KEY_PRESS || type == Clutter.EventType.KEY_RELEASE) {
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let key = event.get_key_symbol();
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if (key == Clutter.KEY_Alt_L || key == Clutter.KEY_Alt_R)
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this._sync();
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}
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return Clutter.EVENT_PROPAGATE;
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},
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_onLongPress(action, actor, state) {
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if (state == Clutter.LongPressState.QUERY ||
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state == Clutter.LongPressState.CANCEL)
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return true;
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this._flipped = !this._flipped;
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this._sync();
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return true;
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}
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});
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var Indicator = new Lang.Class({
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Name: 'SystemIndicator',
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Extends: PanelMenu.SystemIndicator,
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_init() {
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this.parent();
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let userManager = AccountsService.UserManager.get_default();
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this._user = userManager.get_user(GLib.get_user_name());
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this._systemActions = new SystemActions.getDefault();
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this._createSubMenu();
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this._loginScreenItem.actor.connect('notify::visible',
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() => { this._updateMultiUser(); });
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this._logoutItem.actor.connect('notify::visible',
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() => { this._updateMultiUser(); });
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// Whether shutdown is available or not depends on both lockdown
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// settings (disable-log-out) and Polkit policy - the latter doesn't
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// notify, so we update the menu item each time the menu opens or
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// the lockdown setting changes, which should be close enough.
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this.menu.connect('open-state-changed', (menu, open) => {
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if (!open)
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return;
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this._systemActions.forceUpdate();
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});
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this._updateMultiUser();
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Main.sessionMode.connect('updated', this._sessionUpdated.bind(this));
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this._sessionUpdated();
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},
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_updateActionsVisibility() {
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let visible = (this._settingsAction.visible ||
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this._orientationLockAction.visible ||
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this._lockScreenAction.visible ||
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this._altSwitcher.actor.visible);
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this._actionsItem.actor.visible = visible;
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},
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_sessionUpdated() {
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this._settingsAction.visible = Main.sessionMode.allowSettings;
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},
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_updateMultiUser() {
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let hasSwitchUser = this._loginScreenItem.actor.visible;
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let hasLogout = this._logoutItem.actor.visible;
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this._switchUserSubMenu.actor.visible = hasSwitchUser || hasLogout;
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},
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_updateSwitchUserSubMenu() {
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this._switchUserSubMenu.label.text = this._user.get_real_name();
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let clutterText = this._switchUserSubMenu.label.clutter_text;
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// XXX -- for some reason, the ClutterText's width changes
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// rapidly unless we force a relayout of the actor. Probably
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// a size cache issue or something. Moving this to be a layout
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// manager would be a much better idea.
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clutterText.get_allocation_box();
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let layout = clutterText.get_layout();
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if (layout.is_ellipsized())
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this._switchUserSubMenu.label.text = this._user.get_user_name();
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let iconFile = this._user.get_icon_file();
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if (iconFile && !GLib.file_test(iconFile, GLib.FileTest.EXISTS))
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iconFile = null;
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if (iconFile) {
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let file = Gio.File.new_for_path(iconFile);
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let gicon = new Gio.FileIcon({ file: file });
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this._switchUserSubMenu.icon.gicon = gicon;
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this._switchUserSubMenu.icon.add_style_class_name('user-icon');
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this._switchUserSubMenu.icon.remove_style_class_name('default-icon');
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} else {
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this._switchUserSubMenu.icon.icon_name = 'avatar-default-symbolic';
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this._switchUserSubMenu.icon.add_style_class_name('default-icon');
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this._switchUserSubMenu.icon.remove_style_class_name('user-icon');
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}
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},
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_createActionButton(iconName, accessibleName) {
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let icon = new St.Button({ reactive: true,
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can_focus: true,
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track_hover: true,
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accessible_name: accessibleName,
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style_class: 'system-menu-action' });
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icon.child = new St.Icon({ icon_name: iconName });
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return icon;
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},
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_createSubMenu() {
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let bindFlags = GObject.BindingFlags.DEFAULT | GObject.BindingFlags.SYNC_CREATE;
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let item;
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this._switchUserSubMenu = new PopupMenu.PopupSubMenuMenuItem('', true);
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this._switchUserSubMenu.icon.style_class = 'system-switch-user-submenu-icon';
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// Since the label of the switch user submenu depends on the width of
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// the popup menu, and we can't easily connect on allocation-changed
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// or notify::width without creating layout cycles, simply update the
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// label whenever the menu is opened.
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this.menu.connect('open-state-changed', (menu, isOpen) => {
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if (isOpen)
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this._updateSwitchUserSubMenu();
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});
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item = new PopupMenu.PopupMenuItem(_("Switch User"));
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item.connect('activate', () => {
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this.menu.itemActivated(BoxPointer.PopupAnimation.NONE);
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this._systemActions.activateSwitchUser();
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});
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this._switchUserSubMenu.menu.addMenuItem(item);
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this._loginScreenItem = item;
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this._systemActions.bind_property('can-switch-user',
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this._loginScreenItem.actor,
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'visible',
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bindFlags);
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item = new PopupMenu.PopupMenuItem(_("Log Out"));
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item.connect('activate', () => {
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this.menu.itemActivated(BoxPointer.PopupAnimation.NONE);
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this._systemActions.activateLogout();
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});
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this._switchUserSubMenu.menu.addMenuItem(item);
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this._logoutItem = item;
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this._systemActions.bind_property('can-logout',
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this._logoutItem.actor,
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'visible',
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bindFlags);
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this._switchUserSubMenu.menu.addSettingsAction(_("Account Settings"),
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'gnome-user-accounts-panel.desktop');
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this._user.connect('notify::is-loaded', this._updateSwitchUserSubMenu.bind(this));
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this._user.connect('changed', this._updateSwitchUserSubMenu.bind(this));
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this.menu.addMenuItem(this._switchUserSubMenu);
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this.menu.addMenuItem(new PopupMenu.PopupSeparatorMenuItem());
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item = new PopupMenu.PopupBaseMenuItem({ reactive: false,
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can_focus: false });
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this._settingsAction = this._createActionButton('preferences-system-symbolic', _("Settings"));
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this._settingsAction.connect('clicked', () => { this._onSettingsClicked(); });
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item.actor.add(this._settingsAction, { expand: true, x_fill: false });
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this._orientationLockAction = this._createActionButton('', _("Orientation Lock"));
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this._orientationLockAction.connect('clicked', () => {
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this.menu.itemActivated(BoxPointer.PopupAnimation.NONE),
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this._systemActions.activateLockOrientation();
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});
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item.actor.add(this._orientationLockAction, { expand: true, x_fill: false });
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this._systemActions.bind_property('can-lock-orientation',
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this._orientationLockAction,
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'visible',
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bindFlags);
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this._systemActions.bind_property('orientation-lock-icon',
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this._orientationLockAction.child,
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'icon-name',
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bindFlags);
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this._lockScreenAction = this._createActionButton('changes-prevent-symbolic', _("Lock"));
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this._lockScreenAction.connect('clicked', () => {
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this.menu.itemActivated(BoxPointer.PopupAnimation.NONE);
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this._systemActions.activateLockScreen();
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});
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item.actor.add(this._lockScreenAction, { expand: true, x_fill: false });
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this._systemActions.bind_property('can-lock-screen',
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this._lockScreenAction,
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'visible',
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bindFlags);
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this._suspendAction = this._createActionButton('media-playback-pause-symbolic', _("Suspend"));
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this._suspendAction.connect('clicked', () => {
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this.menu.itemActivated(BoxPointer.PopupAnimation.NONE);
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this._systemActions.activateSuspend();
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});
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this._systemActions.bind_property('can-suspend',
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this._suspendAction,
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'visible',
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bindFlags);
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this._powerOffAction = this._createActionButton('system-shutdown-symbolic', _("Power Off"));
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this._powerOffAction.connect('clicked', () => {
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this.menu.itemActivated(BoxPointer.PopupAnimation.NONE);
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this._systemActions.activatePowerOff();
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});
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this._systemActions.bind_property('can-power-off',
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this._powerOffAction,
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'visible',
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bindFlags);
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this._altSwitcher = new AltSwitcher(this._powerOffAction, this._suspendAction);
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item.actor.add(this._altSwitcher.actor, { expand: true, x_fill: false });
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this._actionsItem = item;
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this.menu.addMenuItem(item);
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this._settingsAction.connect('notify::visible',
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() => { this._updateActionsVisibility(); });
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this._orientationLockAction.connect('notify::visible',
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() => { this._updateActionsVisibility(); });
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this._lockScreenAction.connect('notify::visible',
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() => { this._updateActionsVisibility(); });
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this._altSwitcher.actor.connect('notify::visible',
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() => { this._updateActionsVisibility(); });
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},
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_onSettingsClicked() {
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this.menu.itemActivated();
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let app = Shell.AppSystem.get_default().lookup_app('gnome-control-center.desktop');
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Main.overview.hide();
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app.activate();
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}
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});
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