gnome-shell/js/ui/panel.js
Florian Müllner 70f4906ca5 aggregateLayout: Fix natural width computation
Ouch, this went unnoticed for a long time: As the minimum size of menu
items is generally small (because its label can be ellipsized), we are
requesting the unellipsized width of the last "size child" instead of
the widest one.

https://gitlab.gnome.org/GNOME/gnome-shell/issues/996
2019-02-26 08:25:00 +00:00

1200 lines
41 KiB
JavaScript

// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
const { Atk, Clutter, Gio, GLib, GObject, Gtk, 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;
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.addAction(_("Quit"), () => {
this._app.request_quit();
});
this._appSystem.connect('installed-changed', () => {
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());
});
});
// Add separator between windows of the current desktop and other windows.
let workspaceManager = global.workspace_manager;
let activeWorkspace = workspaceManager.get_active_workspace();
let pos = windows.findIndex(w => w.get_workspace() != activeWorkspace);
if (pos >= 0)
this._windowSection.addMenuItem(new PopupMenu.PopupSeparatorMenuItem(), pos);
}
}
/**
* 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.actor.accessible_role = Atk.Role.MENU;
this._startingApps = [];
this._menuManager = panel.menuManager;
this._gtkSettings = Gtk.Settings.get_default();
this._targetApp = null;
this._busyNotifyId = 0;
let bin = new St.Bin({ name: 'appMenu' });
bin.connect('style-changed', this._onStyleChanged.bind(this));
this.actor.add_actor(bin);
this.actor.bind_property("reactive", this.actor, "can-focus", 0);
this.actor.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.actor.reactive = true;
this.show();
Tweener.removeTweens(this.actor);
Tweener.addTween(this.actor,
{ opacity: 255,
time: Overview.ANIMATION_TIME,
transition: 'easeOutQuad' });
}
fadeOut() {
if (!this._visible)
return;
this._visible = false;
this.actor.reactive = false;
Tweener.removeTweens(this.actor);
Tweener.addTween(this.actor,
{ 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.actor.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.actor.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.actor.accessible_role = Atk.Role.TOGGLE_BUTTON;
this.actor.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.actor.add_actor(this._label);
this.actor.label_actor = this._label;
this.actor.connect('captured-event', this._onCapturedEvent.bind(this));
this.actor.connect_after('key-release-event', this._onKeyRelease.bind(this));
Main.overview.connect('showing', () => {
this.actor.add_style_pseudo_class('overview');
this.actor.add_accessible_state (Atk.StateType.CHECKED);
});
Main.overview.connect('hiding', () => {
this.actor.remove_style_pseudo_class('overview');
this.actor.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.actor && 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.actor.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);
}
});
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 });
// For compatibility with extensions that still use the
// this.actor field
this.actor = this;
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) {
super.vfunc_allocate(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 focusWindow = global.display.focus_window;
if (!focusWindow)
return Clutter.EVENT_PROPAGATE;
let dragWindow = focusWindow.is_attached_dialog() ? focusWindow.get_transient_for()
: focusWindow;
if (!dragWindow)
return Clutter.EVENT_PROPAGATE;
let rect = dragWindow.get_frame_rect();
let [stageX, stageY] = event.get_coords();
let allowDrag = dragWindow.maximized_vertically &&
stageX > rect.x && stageX < rect.x + rect.width;
if (!allowDrag)
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.actor.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.actor.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;
});
}
});