gnome-shell/js/ui/status/system.js

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// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
/* exported Indicator */
const { AccountsService, Clutter, GLib, GObject, Shell, St } = imports.gi;
const BoxPointer = imports.ui.boxpointer;
const SystemActions = imports.misc.systemActions;
const Main = imports.ui.main;
const PanelMenu = imports.ui.panelMenu;
const PopupMenu = imports.ui.popupMenu;
var AltSwitcher = class {
constructor(standard, alternate) {
this._standard = standard;
this._standard.connect('notify::visible', this._sync.bind(this));
if (this._standard instanceof St.Button)
this._standard.connect('clicked',
() => this._clickAction.release());
this._alternate = alternate;
this._alternate.connect('notify::visible', this._sync.bind(this));
if (this._alternate instanceof St.Button)
this._alternate.connect('clicked',
() => this._clickAction.release());
this._capturedEventId = global.stage.connect('captured-event', this._onCapturedEvent.bind(this));
this._flipped = false;
this._clickAction = new Clutter.ClickAction();
this._clickAction.connect('long-press', this._onLongPress.bind(this));
this.actor = new St.Bin();
this.actor.connect('destroy', this._onDestroy.bind(this));
this.actor.connect('notify::mapped', () => this._flipped = false);
}
_sync() {
let childToShow = null;
if (this._standard.visible && this._alternate.visible) {
let [x_, y_, mods] = global.get_pointer();
let altPressed = (mods & Clutter.ModifierType.MOD1_MASK) != 0;
if (this._flipped)
childToShow = altPressed ? this._standard : this._alternate;
else
childToShow = altPressed ? this._alternate : this._standard;
} else if (this._standard.visible) {
childToShow = this._standard;
} else if (this._alternate.visible) {
childToShow = this._alternate;
} else {
this.actor.hide();
return;
}
let childShown = this.actor.get_child();
if (childShown != childToShow) {
if (childShown) {
if (childShown.fake_release)
childShown.fake_release();
childShown.remove_action(this._clickAction);
}
childToShow.add_action(this._clickAction);
let hasFocus = this.actor.contains(global.stage.get_key_focus());
this.actor.set_child(childToShow);
if (hasFocus)
childToShow.grab_key_focus();
// The actors might respond to hover, so
// sync the pointer to make sure they update.
global.sync_pointer();
}
this.actor.show();
}
_onDestroy() {
if (this._capturedEventId > 0) {
global.stage.disconnect(this._capturedEventId);
this._capturedEventId = 0;
}
}
_onCapturedEvent(actor, event) {
let type = event.type();
if (type == Clutter.EventType.KEY_PRESS || type == Clutter.EventType.KEY_RELEASE) {
let key = event.get_key_symbol();
if (key == Clutter.KEY_Alt_L || key == Clutter.KEY_Alt_R)
this._sync();
}
return Clutter.EVENT_PROPAGATE;
}
_onLongPress(action, actor, state) {
if (state == Clutter.LongPressState.QUERY ||
state == Clutter.LongPressState.CANCEL)
return true;
this._flipped = !this._flipped;
this._sync();
return true;
}
};
var Indicator = class extends PanelMenu.SystemIndicator {
constructor() {
super();
let userManager = AccountsService.UserManager.get_default();
this._user = userManager.get_user(GLib.get_user_name());
this._systemActions = new SystemActions.getDefault();
this._createSubMenu();
this._loginScreenItem.connect('notify::visible',
() => this._updateMultiUser());
this._logoutItem.connect('notify::visible',
() => this._updateMultiUser());
// Whether shutdown is available or not depends on both lockdown
// settings (disable-log-out) and Polkit policy - the latter doesn't
// notify, so we update the menu item each time the menu opens or
// the lockdown setting changes, which should be close enough.
this.menu.connect('open-state-changed', (menu, open) => {
if (!open)
return;
this._systemActions.forceUpdate();
});
this._updateMultiUser();
Main.sessionMode.connect('updated', this._sessionUpdated.bind(this));
this._sessionUpdated();
}
_sessionUpdated() {
this._settingsAction.visible = Main.sessionMode.allowSettings;
}
_updateMultiUser() {
let hasSwitchUser = this._loginScreenItem.visible;
let hasLogout = this._logoutItem.visible;
this._switchUserSubMenu.visible = hasSwitchUser || hasLogout;
}
_updateSwitchUserSubMenu() {
this._switchUserSubMenu.label.text = this._user.get_real_name();
let clutterText = this._switchUserSubMenu.label.clutter_text;
// XXX -- for some reason, the ClutterText's width changes
// rapidly unless we force a relayout of the actor. Probably
// a size cache issue or something. Moving this to be a layout
// manager would be a much better idea.
clutterText.get_allocation_box();
let layout = clutterText.get_layout();
if (layout.is_ellipsized())
this._switchUserSubMenu.label.text = this._user.get_user_name();
}
_createActionButton(iconName, accessibleName) {
let icon = new St.Button({ reactive: true,
can_focus: true,
track_hover: true,
accessible_name: accessibleName,
style_class: 'system-menu-action' });
icon.child = new St.Icon({ icon_name: iconName });
return icon;
}
_createSubMenu() {
let bindFlags = GObject.BindingFlags.DEFAULT | GObject.BindingFlags.SYNC_CREATE;
let item;
this._switchUserSubMenu = new PopupMenu.PopupSubMenuMenuItem('', true);
this._switchUserSubMenu.icon.icon_name = 'avatar-default-symbolic';
// Since the label of the switch user submenu depends on the width of
// the popup menu, and we can't easily connect on allocation-changed
// or notify::width without creating layout cycles, simply update the
// label whenever the menu is opened.
this.menu.connect('open-state-changed', (menu, isOpen) => {
if (isOpen)
this._updateSwitchUserSubMenu();
});
item = new PopupMenu.PopupMenuItem(_("Switch User"));
item.connect('activate', () => {
this.menu.itemActivated(BoxPointer.PopupAnimation.NONE);
this._systemActions.activateSwitchUser();
});
this._switchUserSubMenu.menu.addMenuItem(item);
this._loginScreenItem = item;
this._systemActions.bind_property('can-switch-user',
this._loginScreenItem,
'visible',
bindFlags);
item = new PopupMenu.PopupMenuItem(_("Log Out"));
item.connect('activate', () => {
this.menu.itemActivated(BoxPointer.PopupAnimation.NONE);
this._systemActions.activateLogout();
});
this._switchUserSubMenu.menu.addMenuItem(item);
this._logoutItem = item;
this._systemActions.bind_property('can-logout',
this._logoutItem,
'visible',
bindFlags);
this._switchUserSubMenu.menu.addSettingsAction(_("Account Settings"),
'gnome-user-accounts-panel.desktop');
this._user.connect('notify::is-loaded', this._updateSwitchUserSubMenu.bind(this));
this._user.connect('changed', this._updateSwitchUserSubMenu.bind(this));
this.menu.addMenuItem(this._switchUserSubMenu);
this.menu.addMenuItem(new PopupMenu.PopupSeparatorMenuItem());
item = new PopupMenu.PopupBaseMenuItem({ reactive: false,
can_focus: false });
this.buttonGroup = item;
let app = this._settingsApp = Shell.AppSystem.get_default().lookup_app(
'gnome-control-center.desktop'
);
if (app) {
let [icon, name] = [app.app_info.get_icon().names[0],
app.get_name()];
this._settingsAction = this._createActionButton(icon, name);
this._settingsAction.connect('clicked',
this._onSettingsClicked.bind(this));
} else {
log('Missing required core component Settings, expect trouble…');
this._settingsAction = new St.Widget();
}
item.add(this._settingsAction, { expand: true, x_fill: false });
this._orientationLockAction = this._createActionButton('', _("Orientation Lock"));
this._orientationLockAction.connect('clicked', () => {
this.menu.itemActivated(BoxPointer.PopupAnimation.NONE),
this._systemActions.activateLockOrientation();
});
item.add(this._orientationLockAction, { expand: true, x_fill: false });
this._systemActions.bind_property('can-lock-orientation',
this._orientationLockAction,
'visible',
bindFlags);
this._systemActions.bind_property('orientation-lock-icon',
this._orientationLockAction.child,
'icon-name',
bindFlags);
this._lockScreenAction = this._createActionButton('changes-prevent', _("Lock"));
this._lockScreenAction.connect('clicked', () => {
this.menu.itemActivated(BoxPointer.PopupAnimation.NONE);
this._systemActions.activateLockScreen();
});
item.add(this._lockScreenAction, { expand: true, x_fill: false });
this._systemActions.bind_property('can-lock-screen',
this._lockScreenAction,
'visible',
bindFlags);
this._suspendAction = this._createActionButton('media-playback-pause', _("Suspend"));
this._suspendAction.connect('clicked', () => {
this.menu.itemActivated(BoxPointer.PopupAnimation.NONE);
this._systemActions.activateSuspend();
});
this._systemActions.bind_property('can-suspend',
this._suspendAction,
'visible',
bindFlags);
this._powerOffAction = this._createActionButton('system-shutdown', _("Power Off"));
this._powerOffAction.connect('clicked', () => {
this.menu.itemActivated(BoxPointer.PopupAnimation.NONE);
this._systemActions.activatePowerOff();
});
this._systemActions.bind_property('can-power-off',
this._powerOffAction,
'visible',
bindFlags);
this._altSwitcher = new AltSwitcher(this._powerOffAction, this._suspendAction);
item.add(this._altSwitcher.actor, { expand: true, x_fill: false });
this.menu.addMenuItem(item);
let visibilityGroup = [
this._settingsAction,
this._orientationLockAction,
this._lockScreenAction,
this._altSwitcher.actor,
];
for (let actor of visibilityGroup) {
actor.connect('notify::visible', () => {
this.buttonGroup.visible = visibilityGroup.some(a => a.visible);
});
}
}
_onSettingsClicked() {
this.menu.itemActivated();
Main.overview.hide();
this._settingsApp.activate();
}
};