gnome-shell/js/ui/panel.js

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// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
/* exported Panel */
const { Atk, Clutter, GLib, GObject, Meta, Shell, St } = imports.gi;
const Animation = imports.ui.animation;
const { AppMenu } = imports.ui.appMenu;
const Config = imports.misc.config;
const CtrlAltTab = imports.ui.ctrlAltTab;
const DND = imports.ui.dnd;
const Overview = imports.ui.overview;
const PopupMenu = imports.ui.popupMenu;
const PanelMenu = imports.ui.panelMenu;
const {QuickSettingsMenu, SystemIndicator} = imports.ui.quickSettings;
const Main = imports.ui.main;
var PANEL_ICON_SIZE = 16;
var APP_MENU_ICON_MARGIN = 0;
var BUTTON_DND_ACTIVATION_TIMEOUT = 250;
const N_QUICK_SETTINGS_COLUMNS = 2;
/**
* AppMenuButton:
*
* This class manages the "application menu" component. It tracks the
* currently focused application. However, when an app is launched,
* this menu also handles startup notification for it. So when we
* have an active startup notification, we switch modes to display that.
*/
var AppMenuButton = GObject.registerClass({
Signals: { 'changed': {} },
}, class AppMenuButton extends PanelMenu.Button {
_init(panel) {
super._init(0.0, null, true);
this.accessible_role = Atk.Role.MENU;
this._startingApps = [];
this._menuManager = panel.menuManager;
this._targetApp = null;
let bin = new St.Bin({ name: 'appMenu' });
this.add_actor(bin);
this.bind_property("reactive", this, "can-focus", 0);
this.reactive = false;
this._container = new St.BoxLayout({ style_class: 'panel-status-menu-box' });
bin.set_child(this._container);
let textureCache = St.TextureCache.get_default();
textureCache.connect('icon-theme-changed',
this._onIconThemeChanged.bind(this));
let iconEffect = new Clutter.DesaturateEffect();
this._iconBox = new St.Bin({
style_class: 'app-menu-icon',
y_align: Clutter.ActorAlign.CENTER,
});
this._iconBox.add_effect(iconEffect);
this._container.add_actor(this._iconBox);
this._iconBox.connect('style-changed', () => {
let themeNode = this._iconBox.get_theme_node();
iconEffect.enabled = themeNode.get_icon_style() == St.IconStyle.SYMBOLIC;
});
this._label = new St.Label({
y_expand: true,
y_align: Clutter.ActorAlign.CENTER,
});
this._container.add_actor(this._label);
this._visible = !Main.overview.visible;
if (!this._visible)
this.hide();
Main.overview.connectObject(
'hiding', this._sync.bind(this),
'showing', this._sync.bind(this), this);
this._spinner = new Animation.Spinner(PANEL_ICON_SIZE, {
animate: true,
hideOnStop: true,
});
this._container.add_actor(this._spinner);
let menu = new AppMenu(this);
this.setMenu(menu);
this._menuManager.addMenu(menu);
Shell.WindowTracker.get_default().connectObject('notify::focus-app',
this._focusAppChanged.bind(this), this);
Shell.AppSystem.get_default().connectObject('app-state-changed',
this._onAppStateChanged.bind(this), this);
global.window_manager.connectObject('switch-workspace',
this._sync.bind(this), this);
this._sync();
}
fadeIn() {
if (this._visible)
return;
this._visible = true;
this.reactive = true;
this.remove_all_transitions();
this.ease({
opacity: 255,
duration: Overview.ANIMATION_TIME,
mode: Clutter.AnimationMode.EASE_OUT_QUAD,
});
}
fadeOut() {
if (!this._visible)
return;
this._visible = false;
this.reactive = false;
this.remove_all_transitions();
this.ease({
opacity: 0,
mode: Clutter.AnimationMode.EASE_OUT_QUAD,
duration: Overview.ANIMATION_TIME,
});
}
_syncIcon(app) {
const icon = app.create_icon_texture(PANEL_ICON_SIZE - APP_MENU_ICON_MARGIN);
this._iconBox.set_child(icon);
}
_onIconThemeChanged() {
if (this._iconBox.child == null)
return;
if (this._targetApp)
this._syncIcon(this._targetApp);
}
stopAnimation() {
this._spinner.stop();
}
startAnimation() {
this._spinner.play();
}
_onAppStateChanged(appSys, app) {
let state = app.state;
if (state != Shell.AppState.STARTING)
this._startingApps = this._startingApps.filter(a => a != app);
else if (state == Shell.AppState.STARTING)
this._startingApps.push(app);
// For now just resync on all running state changes; this is mainly to handle
// cases where the focused window's application changes without the focus
// changing. An example case is how we map OpenOffice.org based on the window
// title which is a dynamic property.
this._sync();
}
_focusAppChanged() {
let tracker = Shell.WindowTracker.get_default();
let focusedApp = tracker.focus_app;
if (!focusedApp) {
// If the app has just lost focus to the panel, pretend
// nothing happened; otherwise you can't keynav to the
// app menu.
if (global.stage.key_focus != null)
return;
}
this._sync();
}
_findTargetApp() {
let workspaceManager = global.workspace_manager;
let workspace = workspaceManager.get_active_workspace();
let tracker = Shell.WindowTracker.get_default();
let focusedApp = tracker.focus_app;
if (focusedApp && focusedApp.is_on_workspace(workspace))
return focusedApp;
for (let i = 0; i < this._startingApps.length; i++) {
if (this._startingApps[i].is_on_workspace(workspace))
return this._startingApps[i];
}
return null;
}
_sync() {
let targetApp = this._findTargetApp();
if (this._targetApp != targetApp) {
this._targetApp?.disconnectObject(this);
this._targetApp = targetApp;
if (this._targetApp) {
this._targetApp.connectObject('notify::busy', this._sync.bind(this), this);
this._label.set_text(this._targetApp.get_name());
this.set_accessible_name(this._targetApp.get_name());
this._syncIcon(this._targetApp);
}
}
let visible = this._targetApp != null && !Main.overview.visibleTarget;
if (visible)
this.fadeIn();
else
this.fadeOut();
let isBusy = this._targetApp != null &&
(this._targetApp.get_state() == Shell.AppState.STARTING ||
this._targetApp.get_busy());
if (isBusy)
this.startAnimation();
else
this.stopAnimation();
this.reactive = visible && !isBusy;
this.menu.setApp(this._targetApp);
this.emit('changed');
}
});
var ActivitiesButton = GObject.registerClass(
class ActivitiesButton extends PanelMenu.Button {
_init() {
super._init(0.0, null, true);
this.accessible_role = Atk.Role.TOGGLE_BUTTON;
this.name = 'panelActivities';
/* Translators: If there is no suitable word for "Activities"
in your language, you can use the word for "Overview". */
this._label = new St.Label({
text: _('Activities'),
y_align: Clutter.ActorAlign.CENTER,
});
this.add_actor(this._label);
this.label_actor = this._label;
Main.overview.connect('showing', () => {
this.add_style_pseudo_class('overview');
this.add_accessible_state(Atk.StateType.CHECKED);
});
Main.overview.connect('hiding', () => {
this.remove_style_pseudo_class('overview');
this.remove_accessible_state(Atk.StateType.CHECKED);
});
this._xdndTimeOut = 0;
}
handleDragOver(source, _actor, _x, _y, _time) {
if (source != Main.xdndHandler)
return DND.DragMotionResult.CONTINUE;
if (this._xdndTimeOut != 0)
GLib.source_remove(this._xdndTimeOut);
this._xdndTimeOut = GLib.timeout_add(GLib.PRIORITY_DEFAULT, BUTTON_DND_ACTIVATION_TIMEOUT, () => {
this._xdndToggleOverview();
});
GLib.Source.set_name_by_id(this._xdndTimeOut, '[gnome-shell] this._xdndToggleOverview');
return DND.DragMotionResult.CONTINUE;
}
vfunc_captured_event(event) {
if (event.type() == Clutter.EventType.BUTTON_PRESS ||
event.type() == Clutter.EventType.TOUCH_BEGIN) {
if (!Main.overview.shouldToggleByCornerOrButton())
return Clutter.EVENT_STOP;
}
return Clutter.EVENT_PROPAGATE;
}
vfunc_event(event) {
if (event.type() == Clutter.EventType.TOUCH_END ||
event.type() == Clutter.EventType.BUTTON_RELEASE) {
if (Main.overview.shouldToggleByCornerOrButton())
Main.overview.toggle();
}
return Clutter.EVENT_PROPAGATE;
}
vfunc_key_release_event(keyEvent) {
let symbol = keyEvent.keyval;
if (symbol == Clutter.KEY_Return || symbol == Clutter.KEY_space) {
if (Main.overview.shouldToggleByCornerOrButton()) {
Main.overview.toggle();
return Clutter.EVENT_STOP;
}
}
return Clutter.EVENT_PROPAGATE;
}
_xdndToggleOverview() {
let [x, y] = global.get_pointer();
let pickedActor = global.stage.get_actor_at_pos(Clutter.PickMode.REACTIVE, x, y);
if (pickedActor == this && Main.overview.shouldToggleByCornerOrButton())
Main.overview.toggle();
GLib.source_remove(this._xdndTimeOut);
this._xdndTimeOut = 0;
return GLib.SOURCE_REMOVE;
}
});
const UnsafeModeIndicator = GObject.registerClass(
class UnsafeModeIndicator extends SystemIndicator {
_init() {
super._init();
this._indicator = this._addIndicator();
this._indicator.icon_name = 'channel-insecure-symbolic';
global.context.bind_property('unsafe-mode',
this._indicator, 'visible',
GObject.BindingFlags.SYNC_CREATE);
}
});
var QuickSettings = GObject.registerClass(
class QuickSettings extends PanelMenu.Button {
_init() {
super._init(0.0, C_('System menu in the top bar', 'System'), true);
this._indicators = new St.BoxLayout({
style_class: 'panel-status-indicators-box',
});
this.add_child(this._indicators);
this.setMenu(new QuickSettingsMenu(this, N_QUICK_SETTINGS_COLUMNS));
if (Config.HAVE_NETWORKMANAGER)
this._network = new imports.ui.status.network.Indicator();
else
this._network = null;
if (Config.HAVE_BLUETOOTH)
this._bluetooth = new imports.ui.status.bluetooth.Indicator();
else
this._bluetooth = null;
this._system = new imports.ui.status.system.Indicator();
this._volume = new imports.ui.status.volume.Indicator();
this._brightness = new imports.ui.status.brightness.Indicator();
this._remoteAccess = new imports.ui.status.remoteAccess.RemoteAccessApplet();
this._location = new imports.ui.status.location.Indicator();
this._thunderbolt = new imports.ui.status.thunderbolt.Indicator();
this._nightLight = new imports.ui.status.nightLight.Indicator();
this._darkMode = new imports.ui.status.darkMode.Indicator();
this._powerProfiles = new imports.ui.status.powerProfiles.Indicator();
this._rfkill = new imports.ui.status.rfkill.Indicator();
this._autoRotate = new imports.ui.status.autoRotate.Indicator();
this._unsafeMode = new UnsafeModeIndicator();
this._indicators.add_child(this._brightness);
this._indicators.add_child(this._remoteAccess);
this._indicators.add_child(this._thunderbolt);
this._indicators.add_child(this._location);
this._indicators.add_child(this._nightLight);
if (this._network)
this._indicators.add_child(this._network);
this._indicators.add_child(this._darkMode);
this._indicators.add_child(this._powerProfiles);
if (this._bluetooth)
this._indicators.add_child(this._bluetooth);
this._indicators.add_child(this._rfkill);
this._indicators.add_child(this._autoRotate);
this._indicators.add_child(this._volume);
this._indicators.add_child(this._unsafeMode);
this._indicators.add_child(this._system);
this._addItems(this._system.quickSettingsItems, N_QUICK_SETTINGS_COLUMNS);
this._addItems(this._volume.quickSettingsItems, N_QUICK_SETTINGS_COLUMNS);
this._addItems(this._brightness.quickSettingsItems, N_QUICK_SETTINGS_COLUMNS);
this._addItems(this._remoteAccess.quickSettingsItems);
this._addItems(this._thunderbolt.quickSettingsItems);
this._addItems(this._location.quickSettingsItems);
if (this._network)
this._addItems(this._network.quickSettingsItems);
if (this._bluetooth)
this._addItems(this._bluetooth.quickSettingsItems);
this._addItems(this._powerProfiles.quickSettingsItems);
this._addItems(this._nightLight.quickSettingsItems);
this._addItems(this._darkMode.quickSettingsItems);
this._addItems(this._rfkill.quickSettingsItems);
this._addItems(this._autoRotate.quickSettingsItems);
this._addItems(this._unsafeMode.quickSettingsItems);
}
_addItems(items, colSpan = 1) {
items.forEach(item => this.menu.addItem(item, colSpan));
}
});
const PANEL_ITEM_IMPLEMENTATIONS = {
'activities': ActivitiesButton,
'appMenu': AppMenuButton,
'quickSettings': QuickSettings,
'dateMenu': imports.ui.dateMenu.DateMenuButton,
'a11y': imports.ui.status.accessibility.ATIndicator,
'keyboard': imports.ui.status.keyboard.InputSourceIndicator,
'dwellClick': imports.ui.status.dwellClick.DwellClickIndicator,
'screenRecording': imports.ui.status.remoteAccess.ScreenRecordingIndicator,
'screenSharing': imports.ui.status.remoteAccess.ScreenSharingIndicator,
};
var Panel = GObject.registerClass(
class Panel extends St.Widget {
_init() {
super._init({
name: 'panel',
reactive: true,
});
this.set_offscreen_redirect(Clutter.OffscreenRedirect.ALWAYS);
this._sessionStyle = null;
this.statusArea = {};
this.menuManager = new PopupMenu.PopupMenuManager(this);
this._leftBox = new St.BoxLayout({ name: 'panelLeft' });
this.add_child(this._leftBox);
this._centerBox = new St.BoxLayout({ name: 'panelCenter' });
this.add_child(this._centerBox);
this._rightBox = new St.BoxLayout({ name: 'panelRight' });
this.add_child(this._rightBox);
this.connect('button-press-event', this._onButtonPress.bind(this));
this.connect('touch-event', this._onTouchEvent.bind(this));
Main.overview.connect('showing', () => {
this.add_style_pseudo_class('overview');
});
Main.overview.connect('hiding', () => {
this.remove_style_pseudo_class('overview');
});
Main.layoutManager.panelBox.add(this);
Main.ctrlAltTabManager.addGroup(this, _("Top Bar"), 'focus-top-bar-symbolic',
{ sortGroup: CtrlAltTab.SortGroup.TOP });
Main.sessionMode.connect('updated', this._updatePanel.bind(this));
global.display.connect('workareas-changed', () => this.queue_relayout());
this._updatePanel();
}
vfunc_get_preferred_width(_forHeight) {
let primaryMonitor = Main.layoutManager.primaryMonitor;
if (primaryMonitor)
return [0, primaryMonitor.width];
return [0, 0];
}
vfunc_allocate(box) {
this.set_allocation(box);
let allocWidth = box.x2 - box.x1;
let allocHeight = box.y2 - box.y1;
let [, leftNaturalWidth] = this._leftBox.get_preferred_width(-1);
let [, centerNaturalWidth] = this._centerBox.get_preferred_width(-1);
let [, rightNaturalWidth] = this._rightBox.get_preferred_width(-1);
let sideWidth, centerWidth;
centerWidth = centerNaturalWidth;
// get workspace area and center date entry relative to it
let monitor = Main.layoutManager.findMonitorForActor(this);
let centerOffset = 0;
if (monitor) {
let workArea = Main.layoutManager.getWorkAreaForMonitor(monitor.index);
centerOffset = 2 * (workArea.x - monitor.x) + workArea.width - monitor.width;
}
sideWidth = Math.max(0, (allocWidth - centerWidth + centerOffset) / 2);
let childBox = new Clutter.ActorBox();
childBox.y1 = 0;
childBox.y2 = allocHeight;
if (this.get_text_direction() == Clutter.TextDirection.RTL) {
childBox.x1 = Math.max(allocWidth - Math.min(Math.floor(sideWidth),
leftNaturalWidth),
0);
childBox.x2 = allocWidth;
} else {
childBox.x1 = 0;
childBox.x2 = Math.min(Math.floor(sideWidth),
leftNaturalWidth);
}
this._leftBox.allocate(childBox);
childBox.x1 = Math.ceil(sideWidth);
childBox.y1 = 0;
childBox.x2 = childBox.x1 + centerWidth;
childBox.y2 = allocHeight;
this._centerBox.allocate(childBox);
childBox.y1 = 0;
childBox.y2 = allocHeight;
if (this.get_text_direction() == Clutter.TextDirection.RTL) {
childBox.x1 = 0;
childBox.x2 = Math.min(Math.floor(sideWidth),
rightNaturalWidth);
} else {
childBox.x1 = Math.max(allocWidth - Math.min(Math.floor(sideWidth),
rightNaturalWidth),
0);
childBox.x2 = allocWidth;
}
this._rightBox.allocate(childBox);
}
_tryDragWindow(event) {
if (Main.modalCount > 0)
return Clutter.EVENT_PROPAGATE;
const targetActor = global.stage.get_event_actor(event);
if (targetActor !== this)
return Clutter.EVENT_PROPAGATE;
const [x, y_] = event.get_coords();
let dragWindow = this._getDraggableWindowForPosition(x);
if (!dragWindow)
return Clutter.EVENT_PROPAGATE;
return dragWindow.begin_grab_op(
Meta.GrabOp.MOVING,
event.get_device(),
event.get_event_sequence(),
event.get_time()) ? Clutter.EVENT_STOP : Clutter.EVENT_PROPAGATE;
}
_onButtonPress(actor, event) {
if (event.get_button() !== Clutter.BUTTON_PRIMARY)
return Clutter.EVENT_PROPAGATE;
return this._tryDragWindow(event);
}
_onTouchEvent(actor, event) {
if (event.type() !== Clutter.EventType.TOUCH_BEGIN)
return Clutter.EVENT_PROPAGATE;
return this._tryDragWindow(event);
}
vfunc_key_press_event(keyEvent) {
let symbol = keyEvent.keyval;
if (symbol == Clutter.KEY_Escape) {
global.display.focus_default_window(keyEvent.time);
return Clutter.EVENT_STOP;
}
return super.vfunc_key_press_event(keyEvent);
}
_toggleMenu(indicator) {
if (!indicator || !indicator.mapped)
return; // menu not supported by current session mode
let menu = indicator.menu;
if (!indicator.reactive)
return;
menu.toggle();
if (menu.isOpen)
menu.actor.navigate_focus(null, St.DirectionType.TAB_FORWARD, false);
}
_closeMenu(indicator) {
if (!indicator || !indicator.mapped)
return; // menu not supported by current session mode
if (!indicator.reactive)
return;
indicator.menu.close();
}
toggleAppMenu() {
this._toggleMenu(this.statusArea.appMenu);
}
toggleCalendar() {
this._toggleMenu(this.statusArea.dateMenu);
}
closeCalendar() {
this._closeMenu(this.statusArea.dateMenu);
}
closeQuickSettings() {
this._closeMenu(this.statusArea.quickSettings);
}
set boxOpacity(value) {
let isReactive = value > 0;
this._leftBox.opacity = value;
this._leftBox.reactive = isReactive;
this._centerBox.opacity = value;
this._centerBox.reactive = isReactive;
this._rightBox.opacity = value;
this._rightBox.reactive = isReactive;
}
get boxOpacity() {
return this._leftBox.opacity;
}
_updatePanel() {
let panel = Main.sessionMode.panel;
this._hideIndicators();
this._updateBox(panel.left, this._leftBox);
this._updateBox(panel.center, this._centerBox);
this._updateBox(panel.right, this._rightBox);
if (panel.left.includes('dateMenu'))
Main.messageTray.bannerAlignment = Clutter.ActorAlign.START;
else if (panel.right.includes('dateMenu'))
Main.messageTray.bannerAlignment = Clutter.ActorAlign.END;
// Default to center if there is no dateMenu
else
Main.messageTray.bannerAlignment = Clutter.ActorAlign.CENTER;
if (this._sessionStyle)
this.remove_style_class_name(this._sessionStyle);
this._sessionStyle = Main.sessionMode.panelStyle;
if (this._sessionStyle)
this.add_style_class_name(this._sessionStyle);
}
_hideIndicators() {
for (let role in PANEL_ITEM_IMPLEMENTATIONS) {
let indicator = this.statusArea[role];
if (!indicator)
continue;
indicator.container.hide();
}
}
_ensureIndicator(role) {
let indicator = this.statusArea[role];
if (!indicator) {
let constructor = PANEL_ITEM_IMPLEMENTATIONS[role];
if (!constructor) {
// This icon is not implemented (this is a bug)
return null;
}
indicator = new constructor(this);
this.statusArea[role] = indicator;
}
return indicator;
}
_updateBox(elements, box) {
let nChildren = box.get_n_children();
for (let i = 0; i < elements.length; i++) {
let role = elements[i];
let indicator = this._ensureIndicator(role);
if (indicator == null)
continue;
this._addToPanelBox(role, indicator, i + nChildren, box);
}
}
_addToPanelBox(role, indicator, position, box) {
let container = indicator.container;
container.show();
let parent = container.get_parent();
if (parent)
parent.remove_actor(container);
box.insert_child_at_index(container, position);
this.statusArea[role] = indicator;
let destroyId = indicator.connect('destroy', emitter => {
delete this.statusArea[role];
emitter.disconnect(destroyId);
});
indicator.connect('menu-set', this._onMenuSet.bind(this));
this._onMenuSet(indicator);
}
addToStatusArea(role, indicator, position, box) {
if (this.statusArea[role])
throw new Error(`Extension point conflict: there is already a status indicator for role ${role}`);
if (!(indicator instanceof PanelMenu.Button))
throw new TypeError('Status indicator must be an instance of PanelMenu.Button');
position ??= 0;
let boxes = {
left: this._leftBox,
center: this._centerBox,
right: this._rightBox,
};
let boxContainer = boxes[box] || this._rightBox;
this.statusArea[role] = indicator;
this._addToPanelBox(role, indicator, position, boxContainer);
return indicator;
}
_onMenuSet(indicator) {
if (!indicator.menu || indicator.menu._openChangedId)
return;
this.menuManager.addMenu(indicator.menu);
indicator.menu._openChangedId = indicator.menu.connect('open-state-changed',
(menu, isOpen) => {
let boxAlignment;
if (this._leftBox.contains(indicator.container))
boxAlignment = Clutter.ActorAlign.START;
else if (this._centerBox.contains(indicator.container))
boxAlignment = Clutter.ActorAlign.CENTER;
else if (this._rightBox.contains(indicator.container))
boxAlignment = Clutter.ActorAlign.END;
if (boxAlignment == Main.messageTray.bannerAlignment)
Main.messageTray.bannerBlocked = isOpen;
});
}
_getDraggableWindowForPosition(stageX) {
let workspaceManager = global.workspace_manager;
const windows = workspaceManager.get_active_workspace().list_windows();
const allWindowsByStacking =
global.display.sort_windows_by_stacking(windows).reverse();
return allWindowsByStacking.find(metaWindow => {
let rect = metaWindow.get_frame_rect();
return metaWindow.is_on_primary_monitor() &&
metaWindow.showing_on_its_workspace() &&
metaWindow.get_window_type() != Meta.WindowType.DESKTOP &&
metaWindow.maximized_vertically &&
stageX > rect.x && stageX < rect.x + rect.width;
});
}
});