gnome-shell/js/ui/panel.js
Dylan McCall 03117d65b2 panel: Drag topmost maximized window
This makes it possible to drag a window which appears connected with the
panel, even if it is not in focus. As a result, it should be easier to
manipulate side-by-side windows.

https://bugzilla.gnome.org/show_bug.cgi?id=679290
2019-05-04 13:50:04 -07:00

1206 lines
41 KiB
JavaScript

// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
const { Atk, Clutter, Gio, GLib, GObject, Meta, Shell, St } = imports.gi;
const Cairo = imports.cairo;
const Mainloop = imports.mainloop;
const Animation = imports.ui.animation;
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 Main = imports.ui.main;
const Tweener = imports.ui.tweener;
var PANEL_ICON_SIZE = 16;
var APP_MENU_ICON_MARGIN = 0;
var BUTTON_DND_ACTIVATION_TIMEOUT = 250;
var SPINNER_ANIMATION_TIME = 1.0;
// To make sure the panel corners blend nicely with the panel,
// we draw background and borders the same way, e.g. drawing
// them as filled shapes from the outside inwards instead of
// using cairo stroke(). So in order to give the border the
// appearance of being drawn on top of the background, we need
// to blend border and background color together.
// For that purpose we use the following helper methods, taken
// from st-theme-node-drawing.c
function _norm(x) {
return Math.round(x / 255);
}
function _over(srcColor, dstColor) {
let src = _premultiply(srcColor);
let dst = _premultiply(dstColor);
let result = new Clutter.Color();
result.alpha = src.alpha + _norm((255 - src.alpha) * dst.alpha);
result.red = src.red + _norm((255 - src.alpha) * dst.red);
result.green = src.green + _norm((255 - src.alpha) * dst.green);
result.blue = src.blue + _norm((255 - src.alpha) * dst.blue);
return _unpremultiply(result);
}
function _premultiply(color) {
return new Clutter.Color({ red: _norm(color.red * color.alpha),
green: _norm(color.green * color.alpha),
blue: _norm(color.blue * color.alpha),
alpha: color.alpha });
};
function _unpremultiply(color) {
if (color.alpha == 0)
return new Clutter.Color();
let red = Math.min((color.red * 255 + 127) / color.alpha, 255);
let green = Math.min((color.green * 255 + 127) / color.alpha, 255);
let blue = Math.min((color.blue * 255 + 127) / color.alpha, 255);
return new Clutter.Color({ red: red, green: green,
blue: blue, alpha: color.alpha });
};
class AppMenu extends PopupMenu.PopupMenu {
constructor(sourceActor) {
super(sourceActor, 0.0, St.Side.TOP);
this.actor.add_style_class_name('app-menu');
this._app = null;
this._appSystem = Shell.AppSystem.get_default();
this._windowsChangedId = 0;
/* Translators: This is the heading of a list of open windows */
this.addMenuItem(new PopupMenu.PopupSeparatorMenuItem(_("Open Windows")));
this._windowSection = new PopupMenu.PopupMenuSection();
this.addMenuItem(this._windowSection);
this.addMenuItem(new PopupMenu.PopupSeparatorMenuItem());
this._newWindowItem = this.addAction(_("New Window"), () => {
this._app.open_new_window(-1);
});
this.addMenuItem(new PopupMenu.PopupSeparatorMenuItem());
this._actionSection = new PopupMenu.PopupMenuSection();
this.addMenuItem(this._actionSection);
this.addMenuItem(new PopupMenu.PopupSeparatorMenuItem());
this._detailsItem = this.addAction(_("Show Details"), () => {
let id = this._app.get_id();
let args = GLib.Variant.new('(ss)', [id, '']);
Gio.DBus.get(Gio.BusType.SESSION, null, (o, res) => {
let bus = Gio.DBus.get_finish(res);
bus.call('org.gnome.Software',
'/org/gnome/Software',
'org.gtk.Actions', 'Activate',
GLib.Variant.new('(sava{sv})',
['details', [args], null]),
null, 0, -1, null, null);
});
});
this.addMenuItem(new PopupMenu.PopupSeparatorMenuItem());
this.addAction(_("Quit"), () => {
this._app.request_quit();
});
this._appSystem.connect('installed-changed', () => {
this._updateDetailsVisibility();
});
this._updateDetailsVisibility();
}
_updateDetailsVisibility() {
let sw = this._appSystem.lookup_app('org.gnome.Software.desktop');
this._detailsItem.actor.visible = (sw != null);
}
isEmpty() {
if (!this._app)
return true;
return super.isEmpty();
}
setApp(app) {
if (this._app == app)
return;
if (this._windowsChangedId)
this._app.disconnect(this._windowsChangedId);
this._windowsChangedId = 0;
this._app = app;
if (app) {
this._windowsChangedId = app.connect('windows-changed', () => {
this._updateWindowsSection();
});
}
this._updateWindowsSection();
let appInfo = app ? app.app_info : null;
let actions = appInfo ? appInfo.list_actions() : [];
this._actionSection.removeAll();
actions.forEach(action => {
let label = appInfo.get_action_name(action);
this._actionSection.addAction(label, event => {
this._app.launch_action(action, event.get_time(), -1);
});
});
this._newWindowItem.actor.visible =
app && app.can_open_new_window() && !actions.includes('new-window');
}
_updateWindowsSection() {
this._windowSection.removeAll();
if (!this._app)
return;
let windows = this._app.get_windows();
windows.forEach(window => {
let title = window.title || this._app.get_name();
this._windowSection.addAction(title, event => {
Main.activateWindow(window, event.get_time());
});
});
}
}
/**
* 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;
this._busyNotifyId = 0;
let bin = new St.Bin({ name: 'appMenu' });
bin.connect('style-changed', this._onStyleChanged.bind(this));
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' });
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._arrow = PopupMenu.arrowIcon(St.Side.BOTTOM);
this._container.add_actor(this._arrow);
this._visible = !Main.overview.visible;
if (!this._visible)
this.hide();
this._overviewHidingId = Main.overview.connect('hiding', this._sync.bind(this));
this._overviewShowingId = Main.overview.connect('showing', this._sync.bind(this));
this._stop = true;
this._spinner = null;
let menu = new AppMenu(this);
this.setMenu(menu);
this._menuManager.addMenu(menu);
let tracker = Shell.WindowTracker.get_default();
let appSys = Shell.AppSystem.get_default();
this._focusAppNotifyId =
tracker.connect('notify::focus-app', this._focusAppChanged.bind(this));
this._appStateChangedSignalId =
appSys.connect('app-state-changed', this._onAppStateChanged.bind(this));
this._switchWorkspaceNotifyId =
global.window_manager.connect('switch-workspace', this._sync.bind(this));
this._sync();
}
fadeIn() {
if (this._visible)
return;
this._visible = true;
this.reactive = true;
this.show();
Tweener.removeTweens(this);
Tweener.addTween(this,
{ opacity: 255,
time: Overview.ANIMATION_TIME,
transition: 'easeOutQuad' });
}
fadeOut() {
if (!this._visible)
return;
this._visible = false;
this.reactive = false;
Tweener.removeTweens(this);
Tweener.addTween(this,
{ opacity: 0,
time: Overview.ANIMATION_TIME,
transition: 'easeOutQuad',
onComplete() {
this.hide();
},
onCompleteScope: this });
}
_onStyleChanged(actor) {
let node = actor.get_theme_node();
let [success, icon] = node.lookup_url('spinner-image', false);
if (!success || (this._spinnerIcon && this._spinnerIcon.equal(icon)))
return;
this._spinnerIcon = icon;
this._spinner = new Animation.AnimatedIcon(this._spinnerIcon, PANEL_ICON_SIZE);
this._container.add_actor(this._spinner.actor);
this._spinner.actor.hide();
}
_syncIcon() {
if (!this._targetApp)
return;
let icon = this._targetApp.create_icon_texture(PANEL_ICON_SIZE - APP_MENU_ICON_MARGIN);
this._iconBox.set_child(icon);
}
_onIconThemeChanged() {
if (this._iconBox.child == null)
return;
this._syncIcon();
}
stopAnimation() {
if (this._stop)
return;
this._stop = true;
if (this._spinner == null)
return;
Tweener.addTween(this._spinner.actor,
{ opacity: 0,
time: SPINNER_ANIMATION_TIME,
transition: "easeOutQuad",
onCompleteScope: this,
onComplete() {
this._spinner.stop();
this._spinner.actor.opacity = 255;
this._spinner.actor.hide();
}
});
}
startAnimation() {
this._stop = false;
if (this._spinner == null)
return;
this._spinner.play();
this._spinner.actor.show();
}
_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) {
if (this._busyNotifyId) {
this._targetApp.disconnect(this._busyNotifyId);
this._busyNotifyId = 0;
}
this._targetApp = targetApp;
if (this._targetApp) {
this._busyNotifyId = this._targetApp.connect('notify::busy', this._sync.bind(this));
this._label.set_text(this._targetApp.get_name());
this.set_accessible_name(this._targetApp.get_name());
}
}
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._syncIcon();
this.menu.setApp(this._targetApp);
this.emit('changed');
}
_onDestroy() {
if (this._appStateChangedSignalId > 0) {
let appSys = Shell.AppSystem.get_default();
appSys.disconnect(this._appStateChangedSignalId);
this._appStateChangedSignalId = 0;
}
if (this._focusAppNotifyId > 0) {
let tracker = Shell.WindowTracker.get_default();
tracker.disconnect(this._focusAppNotifyId);
this._focusAppNotifyId = 0;
}
if (this._overviewHidingId > 0) {
Main.overview.disconnect(this._overviewHidingId);
this._overviewHidingId = 0;
}
if (this._overviewShowingId > 0) {
Main.overview.disconnect(this._overviewShowingId);
this._overviewShowingId = 0;
}
if (this._switchWorkspaceNotifyId > 0) {
global.window_manager.disconnect(this._switchWorkspaceNotifyId);
this._switchWorkspaceNotifyId = 0;
}
super._onDestroy();
}
});
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;
this.connect('captured-event', this._onCapturedEvent.bind(this));
this.connect_after('key-release-event', this._onKeyRelease.bind(this));
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)
Mainloop.source_remove(this._xdndTimeOut);
this._xdndTimeOut = Mainloop.timeout_add(BUTTON_DND_ACTIVATION_TIMEOUT, () => {
this._xdndToggleOverview(actor);
});
GLib.Source.set_name_by_id(this._xdndTimeOut, '[gnome-shell] this._xdndToggleOverview');
return DND.DragMotionResult.CONTINUE;
}
_onCapturedEvent(actor, 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;
}
_onEvent(actor, event) {
super._onEvent(actor, 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;
}
_onKeyRelease(actor, event) {
let symbol = event.get_key_symbol();
if (symbol == Clutter.KEY_Return || symbol == Clutter.KEY_space) {
if (Main.overview.shouldToggleByCornerOrButton())
Main.overview.toggle();
}
return Clutter.EVENT_PROPAGATE;
}
_xdndToggleOverview(actor) {
let [x, y, mask] = 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();
Mainloop.source_remove(this._xdndTimeOut);
this._xdndTimeOut = 0;
return GLib.SOURCE_REMOVE;
}
});
var PanelCorner = class {
constructor(side) {
this._side = side;
this.actor = new St.DrawingArea({ style_class: 'panel-corner' });
this.actor.connect('style-changed', this._styleChanged.bind(this));
this.actor.connect('repaint', this._repaint.bind(this));
}
_findRightmostButton(container) {
if (!container.get_children)
return null;
let children = container.get_children();
if (!children || children.length == 0)
return null;
// Start at the back and work backward
let index;
for (index = children.length - 1; index >= 0; index--) {
if (children[index].visible)
break;
}
if (index < 0)
return null;
if (!(children[index].has_style_class_name('panel-menu')) &&
!(children[index].has_style_class_name('panel-button')))
return this._findRightmostButton(children[index]);
return children[index];
}
_findLeftmostButton(container) {
if (!container.get_children)
return null;
let children = container.get_children();
if (!children || children.length == 0)
return null;
// Start at the front and work forward
let index;
for (index = 0; index < children.length; index++) {
if (children[index].visible)
break;
}
if (index == children.length)
return null;
if (!(children[index].has_style_class_name('panel-menu')) &&
!(children[index].has_style_class_name('panel-button')))
return this._findLeftmostButton(children[index]);
return children[index];
}
setStyleParent(box) {
let side = this._side;
let rtlAwareContainer = box instanceof St.BoxLayout;
if (rtlAwareContainer &&
box.get_text_direction() == Clutter.TextDirection.RTL) {
if (this._side == St.Side.LEFT)
side = St.Side.RIGHT;
else if (this._side == St.Side.RIGHT)
side = St.Side.LEFT;
}
let button;
if (side == St.Side.LEFT)
button = this._findLeftmostButton(box);
else if (side == St.Side.RIGHT)
button = this._findRightmostButton(box);
if (button) {
if (this._button && this._buttonStyleChangedSignalId) {
this._button.disconnect(this._buttonStyleChangedSignalId);
this._button.style = null;
}
this._button = button;
button.connect('destroy', () => {
if (this._button == button) {
this._button = null;
this._buttonStyleChangedSignalId = 0;
}
});
// Synchronize the locate button's pseudo classes with this corner
this._buttonStyleChangedSignalId = button.connect('style-changed',
actor => {
let pseudoClass = button.get_style_pseudo_class();
this.actor.set_style_pseudo_class(pseudoClass);
});
// The corner doesn't support theme transitions, so override
// the .panel-button default
button.style = 'transition-duration: 0ms';
}
}
_repaint() {
let node = this.actor.get_theme_node();
let cornerRadius = node.get_length("-panel-corner-radius");
let borderWidth = node.get_length('-panel-corner-border-width');
let backgroundColor = node.get_color('-panel-corner-background-color');
let borderColor = node.get_color('-panel-corner-border-color');
let overlap = borderColor.alpha != 0;
let offsetY = overlap ? 0 : borderWidth;
let cr = this.actor.get_context();
cr.setOperator(Cairo.Operator.SOURCE);
cr.moveTo(0, offsetY);
if (this._side == St.Side.LEFT)
cr.arc(cornerRadius,
borderWidth + cornerRadius,
cornerRadius, Math.PI, 3 * Math.PI / 2);
else
cr.arc(0,
borderWidth + cornerRadius,
cornerRadius, 3 * Math.PI / 2, 2 * Math.PI);
cr.lineTo(cornerRadius, offsetY);
cr.closePath();
let savedPath = cr.copyPath();
let xOffsetDirection = this._side == St.Side.LEFT ? -1 : 1;
let over = _over(borderColor, backgroundColor);
Clutter.cairo_set_source_color(cr, over);
cr.fill();
if (overlap) {
let offset = borderWidth;
Clutter.cairo_set_source_color(cr, backgroundColor);
cr.save();
cr.translate(xOffsetDirection * offset, - offset);
cr.appendPath(savedPath);
cr.fill();
cr.restore();
}
cr.$dispose();
}
_styleChanged() {
let node = this.actor.get_theme_node();
let cornerRadius = node.get_length("-panel-corner-radius");
let borderWidth = node.get_length('-panel-corner-border-width');
this.actor.set_size(cornerRadius, borderWidth + cornerRadius);
this.actor.set_anchor_point(0, borderWidth);
}
};
var AggregateLayout = GObject.registerClass(
class AggregateLayout extends Clutter.BoxLayout {
_init(params) {
if (!params)
params = {};
params['orientation'] = Clutter.Orientation.VERTICAL;
super._init(params);
this._sizeChildren = [];
}
addSizeChild(actor) {
this._sizeChildren.push(actor);
this.layout_changed();
}
vfunc_get_preferred_width(container, forHeight) {
let themeNode = container.get_theme_node();
let minWidth = themeNode.get_min_width();
let natWidth = minWidth;
for (let i = 0; i < this._sizeChildren.length; i++) {
let child = this._sizeChildren[i];
let [childMin, childNat] = child.get_preferred_width(forHeight);
minWidth = Math.max(minWidth, childMin);
natWidth = Math.max(natWidth, childNat);
}
return [minWidth, natWidth];
}
});
var AggregateMenu = GObject.registerClass(
class AggregateMenu extends PanelMenu.Button {
_init() {
super._init(0.0, C_("System menu in the top bar", "System"), false);
this.menu.actor.add_style_class_name('aggregate-menu');
let menuLayout = new AggregateLayout();
this.menu.box.set_layout_manager(menuLayout);
this._indicators = new St.BoxLayout({ style_class: 'panel-status-indicators-box' });
this.add_child(this._indicators);
if (Config.HAVE_NETWORKMANAGER) {
this._network = new imports.ui.status.network.NMApplet();
} else {
this._network = null;
}
if (Config.HAVE_BLUETOOTH) {
this._bluetooth = new imports.ui.status.bluetooth.Indicator();
} else {
this._bluetooth = null;
}
this._remoteAccess = new imports.ui.status.remoteAccess.RemoteAccessApplet();
this._power = new imports.ui.status.power.Indicator();
this._rfkill = new imports.ui.status.rfkill.Indicator();
this._volume = new imports.ui.status.volume.Indicator();
this._brightness = new imports.ui.status.brightness.Indicator();
this._system = new imports.ui.status.system.Indicator();
this._screencast = new imports.ui.status.screencast.Indicator();
this._location = new imports.ui.status.location.Indicator();
this._nightLight = new imports.ui.status.nightLight.Indicator();
this._thunderbolt = new imports.ui.status.thunderbolt.Indicator();
this._indicators.add_child(this._thunderbolt.indicators);
this._indicators.add_child(this._screencast.indicators);
this._indicators.add_child(this._location.indicators);
this._indicators.add_child(this._nightLight.indicators);
if (this._network) {
this._indicators.add_child(this._network.indicators);
}
if (this._bluetooth) {
this._indicators.add_child(this._bluetooth.indicators);
}
this._indicators.add_child(this._remoteAccess.indicators);
this._indicators.add_child(this._rfkill.indicators);
this._indicators.add_child(this._volume.indicators);
this._indicators.add_child(this._power.indicators);
this._indicators.add_child(PopupMenu.arrowIcon(St.Side.BOTTOM));
this.menu.addMenuItem(this._volume.menu);
this.menu.addMenuItem(this._brightness.menu);
this.menu.addMenuItem(new PopupMenu.PopupSeparatorMenuItem());
if (this._network) {
this.menu.addMenuItem(this._network.menu);
}
if (this._bluetooth) {
this.menu.addMenuItem(this._bluetooth.menu);
}
this.menu.addMenuItem(this._remoteAccess.menu);
this.menu.addMenuItem(this._location.menu);
this.menu.addMenuItem(this._rfkill.menu);
this.menu.addMenuItem(this._power.menu);
this.menu.addMenuItem(this._nightLight.menu);
this.menu.addMenuItem(this._system.menu);
menuLayout.addSizeChild(this._location.menu.actor);
menuLayout.addSizeChild(this._rfkill.menu.actor);
menuLayout.addSizeChild(this._power.menu.actor);
menuLayout.addSizeChild(this._system.buttonGroup);
}
});
const PANEL_ITEM_IMPLEMENTATIONS = {
'activities': ActivitiesButton,
'aggregateMenu': AggregateMenu,
'appMenu': AppMenuButton,
'dateMenu': imports.ui.dateMenu.DateMenuButton,
'a11y': imports.ui.status.accessibility.ATIndicator,
'keyboard': imports.ui.status.keyboard.InputSourceIndicator,
};
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._leftCorner = new PanelCorner(St.Side.LEFT);
this.add_child(this._leftCorner.actor);
this._rightCorner = new PanelCorner(St.Side.RIGHT);
this.add_child(this._rightCorner.actor);
this.connect('button-press-event', this._onButtonPress.bind(this));
this.connect('touch-event', this._onButtonPress.bind(this));
this.connect('key-press-event', this._onKeyPress.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, flags) {
this.set_allocation(box, flags);
let allocWidth = box.x2 - box.x1;
let allocHeight = box.y2 - box.y1;
let [leftMinWidth, leftNaturalWidth] = this._leftBox.get_preferred_width(-1);
let [centerMinWidth, centerNaturalWidth] = this._centerBox.get_preferred_width(-1);
let [rightMinWidth, 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, flags);
childBox.x1 = Math.ceil(sideWidth);
childBox.y1 = 0;
childBox.x2 = childBox.x1 + centerWidth;
childBox.y2 = allocHeight;
this._centerBox.allocate(childBox, flags);
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, flags);
let cornerMinWidth, cornerMinHeight;
let cornerWidth, cornerHeight;
[cornerMinWidth, cornerWidth] = this._leftCorner.actor.get_preferred_width(-1);
[cornerMinHeight, cornerHeight] = this._leftCorner.actor.get_preferred_height(-1);
childBox.x1 = 0;
childBox.x2 = cornerWidth;
childBox.y1 = allocHeight;
childBox.y2 = allocHeight + cornerHeight;
this._leftCorner.actor.allocate(childBox, flags);
[cornerMinWidth, cornerWidth] = this._rightCorner.actor.get_preferred_width(-1);
[cornerMinHeight, cornerHeight] = this._rightCorner.actor.get_preferred_height(-1);
childBox.x1 = allocWidth - cornerWidth;
childBox.x2 = allocWidth;
childBox.y1 = allocHeight;
childBox.y2 = allocHeight + cornerHeight;
this._rightCorner.actor.allocate(childBox, flags);
}
_onButtonPress(actor, event) {
if (Main.modalCount > 0)
return Clutter.EVENT_PROPAGATE;
if (event.get_source() != actor)
return Clutter.EVENT_PROPAGATE;
let type = event.type();
let isPress = type == Clutter.EventType.BUTTON_PRESS;
if (!isPress && type != Clutter.EventType.TOUCH_BEGIN)
return Clutter.EVENT_PROPAGATE;
let button = isPress ? event.get_button() : -1;
if (isPress && button != 1)
return Clutter.EVENT_PROPAGATE;
let [stageX, stageY] = event.get_coords();
let dragWindow = this._getDraggableWindowForPosition(stageX);
if (!dragWindow)
return Clutter.EVENT_PROPAGATE;
global.display.begin_grab_op(dragWindow,
Meta.GrabOp.MOVING,
false, /* pointer grab */
true, /* frame action */
button,
event.get_state(),
event.get_time(),
stageX, stageY);
return Clutter.EVENT_STOP;
}
_onKeyPress(actor, event) {
let symbol = event.get_key_symbol();
if (symbol == Clutter.KEY_Escape) {
global.display.focus_default_window(event.get_time());
return Clutter.EVENT_STOP;
}
return Clutter.EVENT_PROPAGATE;
}
_toggleMenu(indicator) {
if (!indicator || !indicator.container.visible)
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);
}
toggleAppMenu() {
this._toggleMenu(this.statusArea.appMenu);
}
toggleCalendar() {
this._toggleMenu(this.statusArea.dateMenu);
}
closeCalendar() {
let indicator = this.statusArea.dateMenu;
if (!indicator) // calendar not supported by current session mode
return;
let menu = indicator.menu;
if (!indicator.reactive)
return;
menu.close();
}
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.indexOf('dateMenu') != -1)
Main.messageTray.bannerAlignment = Clutter.ActorAlign.START;
else if (panel.right.indexOf('dateMenu') != -1)
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._removeStyleClassName(this._sessionStyle);
this._sessionStyle = Main.sessionMode.panelStyle;
if (this._sessionStyle)
this._addStyleClassName(this._sessionStyle);
if (this.get_text_direction() == Clutter.TextDirection.RTL) {
this._leftCorner.setStyleParent(this._rightBox);
this._rightCorner.setStyleParent(this._leftBox);
} else {
this._leftCorner.setStyleParent(this._leftBox);
this._rightCorner.setStyleParent(this._rightBox);
}
}
_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);
if (indicator.menu)
this.menuManager.addMenu(indicator.menu);
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 = 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;
}
_addStyleClassName(className) {
this.add_style_class_name(className);
this._rightCorner.actor.add_style_class_name(className);
this._leftCorner.actor.add_style_class_name(className);
}
_removeStyleClassName(className) {
this.remove_style_class_name(className);
this._rightCorner.actor.remove_style_class_name(className);
this._leftCorner.actor.remove_style_class_name(className);
}
_onMenuSet(indicator) {
if (!indicator.menu || indicator.menu.hasOwnProperty('_openChangedId'))
return;
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;
let workspace = workspaceManager.get_active_workspace()
let allWindowsByStacking = global.display.sort_windows_by_stacking(
workspace.list_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
});
}
});