gnome-shell/js/ui/legacyTray.js

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const Clutter = imports.gi.Clutter;
const GObject = imports.gi.GObject;
const Meta = imports.gi.Meta;
const Shell = imports.gi.Shell;
const St = imports.gi.St;
const CtrlAltTab = imports.ui.ctrlAltTab;
const Lang = imports.lang;
const Layout = imports.ui.layout;
const Main = imports.ui.main;
const Overview = imports.ui.overview;
const OverviewControls = imports.ui.overviewControls;
const Tweener = imports.ui.tweener;
const STANDARD_TRAY_ICON_IMPLEMENTATIONS = {
'bluetooth-applet': 'bluetooth',
'gnome-volume-control-applet': 'volume', // renamed to gnome-sound-applet
// when moved to control center
'gnome-sound-applet': 'volume',
'nm-applet': 'network',
'gnome-power-manager': 'battery',
'keyboard': 'keyboard',
'a11y-keyboard': 'a11y',
'kbd-scrolllock': 'keyboard',
'kbd-numlock': 'keyboard',
'kbd-capslock': 'keyboard',
'ibus-ui-gtk': 'keyboard'
};
// Offset of the original position from the bottom-right corner
const CONCEALED_VISIBLE_FRACTION = 0.2;
const REVEAL_ANIMATION_TIME = 0.2;
const BARRIER_THRESHOLD = 70;
const BARRIER_TIMEOUT = 1000;
const LegacyTray = new Lang.Class({
Name: 'LegacyTray',
_init: function() {
this.actor = new St.Widget({ clip_to_allocation: true,
layout_manager: new Clutter.BinLayout() });
let constraint = new Layout.MonitorConstraint({ primary: true,
work_area: true });
this.actor.add_constraint(constraint);
this._slideLayout = new OverviewControls.SlideLayout();
this._slideLayout.translationX = 0;
this._slideLayout.slideDirection = OverviewControls.SlideDirection.LEFT;
this._slider = new St.Widget({ style_class: 'legacy-tray',
x_expand: true, y_expand: true,
x_align: Clutter.ActorAlign.START,
y_align: Clutter.ActorAlign.END,
layout_manager: this._slideLayout });
this.actor.add_actor(this._slider);
this._slider.connect('notify::allocation', Lang.bind(this, this._syncBarrier));
this._box = new St.BoxLayout();
this._slider.add_actor(this._box);
this._concealHandle = new St.Button({ style_class: 'legacy-tray-handle',
/* translators: 'Hide' is a verb */
accessible_name: _("Hide tray"),
can_focus: true });
this._concealHandle.child = new St.Icon({ icon_name: 'go-previous-symbolic' });
this._box.add_child(this._concealHandle);
this._iconBox = new St.BoxLayout({ style_class: 'legacy-tray-icon-box' });
this._box.add_actor(this._iconBox);
this._revealHandle = new St.Button({ style_class: 'legacy-tray-handle' });
this._revealHandle.child = new St.Icon({ icon_name: 'go-next-symbolic' });
this._box.add_child(this._revealHandle);
this._revealHandle.bind_property('visible',
this._concealHandle, 'visible',
GObject.BindingFlags.BIDIRECTIONAL |
GObject.BindingFlags.INVERT_BOOLEAN);
this._revealHandle.connect('notify::visible',
Lang.bind(this, this._sync));
this._revealHandle.connect('notify::hover',
Lang.bind(this ,this._sync));
this._revealHandle.connect('clicked', Lang.bind(this,
function() {
this._concealHandle.show();
}));
this._concealHandle.connect('clicked', Lang.bind(this,
function() {
this._revealHandle.show();
}));
this._horizontalBarrier = null;
this._pressureBarrier = new Layout.PressureBarrier(BARRIER_THRESHOLD,
BARRIER_TIMEOUT,
Shell.ActionMode.NORMAL);
this._pressureBarrier.connect('trigger', Lang.bind(this, function() {
this._concealHandle.show();
}));
Main.layoutManager.addChrome(this.actor, { affectsInputRegion: false });
Main.layoutManager.trackChrome(this._slider, { affectsInputRegion: true });
Main.ctrlAltTabManager.addGroup(this.actor,
_("Status Icons"), 'focus-legacy-systray-symbolic',
{ sortGroup: CtrlAltTab.SortGroup.BOTTOM });
this._trayManager = new Shell.TrayManager();
this._trayIconAddedId = this._trayManager.connect('tray-icon-added', Lang.bind(this, this._onTrayIconAdded));
this._trayIconRemovedId = this._trayManager.connect('tray-icon-removed', Lang.bind(this, this._onTrayIconRemoved));
this._trayManager.manage_screen(global.screen, this.actor);
Main.overview.connect('showing', Lang.bind(this,
function() {
Tweener.removeTweens(this._slider);
Tweener.addTween(this._slider, { opacity: 0,
time: Overview.ANIMATION_TIME,
transition: 'easeOutQuad' });
}));
Main.overview.connect('shown', Lang.bind(this, this._sync));
Main.overview.connect('hiding', Lang.bind(this,
function() {
this._sync();
Tweener.removeTweens(this._slider);
Tweener.addTween(this._slider, { opacity: 255,
time: Overview.ANIMATION_TIME,
transition: 'easeOutQuad' });
}));
Main.layoutManager.connect('monitors-changed',
Lang.bind(this, this._sync));
global.screen.connect('in-fullscreen-changed',
Lang.bind(this, this._sync));
Main.sessionMode.connect('updated', Lang.bind(this, this._sync));
this._sync();
},
_onTrayIconAdded: function(tm, icon) {
let wmClass = icon.wm_class ? icon.wm_class.toLowerCase() : '';
if (STANDARD_TRAY_ICON_IMPLEMENTATIONS[wmClass] !== undefined)
return;
let button = new St.Button({ child: icon,
style_class: 'legacy-tray-icon',
button_mask: St.ButtonMask.ONE |
St.ButtonMask.TWO |
St.ButtonMask.THREE,
can_focus: true,
x_fill: true, y_fill: true });
let app = Shell.WindowTracker.get_default().get_app_from_pid(icon.pid);
if (!app)
app = Shell.AppSystem.get_default().lookup_startup_wmclass(wmClass);
if (!app)
app = Shell.AppSystem.get_default().lookup_desktop_wmclass(wmClass);
if (app)
button.accessible_name = app.get_name();
else
button.accessible_name = icon.title;
button.connect('clicked',
function() {
icon.click(Clutter.get_current_event());
});
button.connect('key-press-event',
function() {
icon.click(Clutter.get_current_event());
return Clutter.EVENT_PROPAGATE;
});
button.connect('key-focus-in', Lang.bind(this,
function() {
this._concealHandle.show();
}));
this._iconBox.add_actor(button);
this._sync();
},
_onTrayIconRemoved: function(tm, icon) {
if (!this.actor.contains(icon))
return;
icon.get_parent().destroy();
this._sync();
},
_syncBarrier: function() {
let rtl = (this._slider.get_text_direction() == Clutter.TextDirection.RTL);
let [x, y] = this._slider.get_transformed_position();
let [w, h] = this._slider.get_transformed_size();
let x1 = Math.round(x);
if (rtl)
x1 += Math.round(w);
let x2 = x1;
let y1 = Math.round(y);
let y2 = y1 + Math.round(h);
if (this._horizontalBarrier &&
this._horizontalBarrier.x1 == x1 &&
this._horizontalBarrier.y1 == y1 &&
this._horizontalBarrier.x2 == x2 &&
this._horizontalBarrier.y2 == y2)
return;
if (this._horizontalBarrier) {
this._pressureBarrier.removeBarrier(this._horizontalBarrier);
this._horizontalBarrier.destroy();
this._horizontalBarrier = null;
}
let directions = (rtl ? Meta.BarrierDirection.NEGATIVE_X : Meta.BarrierDirection.POSITIVE_X);
this._horizontalBarrier = new Meta.Barrier({ display: global.display,
x1: x1, x2: x2,
y1: y1, y2: y2,
directions: directions });
this._pressureBarrier.addBarrier(this._horizontalBarrier);
},
_sync: function() {
// FIXME: we no longer treat tray icons as notifications
let allowed = Main.sessionMode.hasNotifications;
let hasIcons = this._iconBox.get_n_children() > 0;
let inOverview = Main.overview.visible && !Main.overview.animationInProgress;
let inFullscreen = Main.layoutManager.primaryMonitor.inFullscreen;
this.actor.visible = allowed && hasIcons && !inOverview && !inFullscreen;
if (!hasIcons)
this._concealHandle.hide();
let targetSlide;
if (this._concealHandle.visible) {
targetSlide = 1.0;
} else if (!hasIcons) {
targetSlide = 0.0;
} else {
let [, boxWidth] = this._box.get_preferred_width(-1);
let [, handleWidth] = this._revealHandle.get_preferred_width(-1);
targetSlide = handleWidth / boxWidth;
if (!this._revealHandle.hover)
targetSlide *= CONCEALED_VISIBLE_FRACTION;
}
if (this.actor.visible)
Tweener.addTween(this._slideLayout,
{ slideX: targetSlide,
time: REVEAL_ANIMATION_TIME,
transition: 'easeOutQuad' });
else
this._slideLayout.slideX = targetSlide;
}
});