gnome-shell/js/ui/altTab.js
Dan Winship 2b78d5bd5d Improve support for multihead setups
Fix panel, app switcher, and looking glass to limit themselves to the
primary monitor, and run dialog to limit itself to the monitor
containing the currently-focused window.

The overview is also limited to the primary monitor now (with the
other monitors being blacked out), although the workspaces within the
overview are shaped like the full "screen" (the bounding box of all
monitors). To be fixed later.

https://bugzilla.gnome.org/show_bug.cgi?id=593060
2009-10-01 13:46:03 -04:00

289 lines
9.6 KiB
JavaScript

/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
const Big = imports.gi.Big;
const Clutter = imports.gi.Clutter;
const Gdk = imports.gi.Gdk;
const Lang = imports.lang;
const Meta = imports.gi.Meta;
const Pango = imports.gi.Pango;
const Shell = imports.gi.Shell;
const AppIcon = imports.ui.appIcon;
const Lightbox = imports.ui.lightbox;
const Main = imports.ui.main;
const POPUP_BG_COLOR = new Clutter.Color();
POPUP_BG_COLOR.from_pixel(0x00000080);
const POPUP_APPICON_BORDER_COLOR = new Clutter.Color();
POPUP_APPICON_BORDER_COLOR.from_pixel(0xffffffff);
const POPUP_APPS_BOX_SPACING = 8;
const POPUP_ICON_SIZE = 48;
const POPUP_POINTER_SELECTION_THRESHOLD = 3;
function AltTabPopup() {
this._init();
}
AltTabPopup.prototype = {
_init : function() {
this.actor = new Big.Box({ background_color : POPUP_BG_COLOR,
corner_radius: POPUP_APPS_BOX_SPACING,
padding: POPUP_APPS_BOX_SPACING,
spacing: POPUP_APPS_BOX_SPACING,
orientation: Big.BoxOrientation.VERTICAL,
reactive: true });
this.actor.connect('destroy', Lang.bind(this, this._onDestroy));
this._appsBox = new Big.Box({ spacing: POPUP_APPS_BOX_SPACING,
orientation: Big.BoxOrientation.HORIZONTAL });
let gcenterbox = new Big.Box({ orientation: Big.BoxOrientation.HORIZONTAL,
x_align: Big.BoxAlignment.CENTER });
gcenterbox.append(this._appsBox, Big.BoxPackFlags.NONE);
this.actor.append(gcenterbox, Big.BoxPackFlags.NONE);
this._icons = [];
this._currentWindows = [];
this._haveModal = false;
this._selected = 0;
this._highlightedWindow = null;
this._toplevels = global.window_group.get_children();
global.stage.add_actor(this.actor);
},
_addIcon : function(appIcon) {
appIcon.connect('activate', Lang.bind(this, this._appClicked));
appIcon.connect('activate-window', Lang.bind(this, this._windowClicked));
appIcon.connect('highlight-window', Lang.bind(this, this._windowHovered));
appIcon.connect('menu-popped-up', Lang.bind(this, this._menuPoppedUp));
appIcon.connect('menu-popped-down', Lang.bind(this, this._menuPoppedDown));
appIcon.actor.connect('enter-event', Lang.bind(this, this._iconEntered));
// FIXME?
appIcon.actor.border = 2;
appIcon.highlight_border_color = POPUP_APPICON_BORDER_COLOR;
this._icons.push(appIcon);
this._currentWindows.push(appIcon.windows[0]);
this._appsBox.append(appIcon.actor, Big.BoxPackFlags.NONE);
},
show : function(initialSelection) {
let appMonitor = Shell.AppMonitor.get_default();
let apps = appMonitor.get_running_apps ("");
if (!apps.length)
return false;
if (!Main.pushModal(this.actor))
return false;
this._haveModal = true;
this._keyPressEventId = global.stage.connect('key-press-event', Lang.bind(this, this._keyPressEvent));
this._keyReleaseEventId = global.stage.connect('key-release-event', Lang.bind(this, this._keyReleaseEvent));
this._motionEventId = this.actor.connect('motion-event', Lang.bind(this, this._mouseMoved));
this._mouseActive = false;
this._mouseMovement = 0;
// Contruct the AppIcons, sort by time, add to the popup
let icons = [];
for (let i = 0; i < apps.length; i++)
icons.push(new AppIcon.AppIcon(apps[i], AppIcon.MenuType.BELOW, false));
icons.sort(Lang.bind(this, this._sortAppIcon));
for (let i = 0; i < icons.length; i++)
this._addIcon(icons[i]);
// Need to specify explicit width and height because the
// window_group may not actually cover the whole screen
this._lightbox = new Lightbox.Lightbox(global.window_group,
global.screen_width,
global.screen_height);
this.actor.show_all();
let primary = global.get_primary_monitor();
this.actor.x = primary.x + Math.floor((primary.width - this.actor.width) / 2);
this.actor.y = primary.y + Math.floor((primary.height - this.actor.height) / 2);
this._updateSelection(initialSelection);
// There's a race condition; if the user released Alt before
// we got the grab, then we won't be notified. (See
// https://bugzilla.gnome.org/show_bug.cgi?id=596695 for
// details.) So we check now. (Have to do this after calling
// _updateSelection.)
let [screen, x, y, mods] = Gdk.Display.get_default().get_pointer();
if (!(mods & Gdk.ModifierType.MOD1_MASK)) {
this._finish();
return false;
}
return true;
},
_hasVisibleWindows : function(appIcon) {
for (let i = 0; i < appIcon.windows.length; i++) {
if (appIcon.windows[i].showing_on_its_workspace())
return true;
}
return false;
},
_sortAppIcon : function(appIcon1, appIcon2) {
let vis1 = this._hasVisibleWindows(appIcon1);
let vis2 = this._hasVisibleWindows(appIcon2);
if (vis1 && !vis2) {
return -1;
} else if (vis2 && !vis1) {
return 1;
} else {
// The app's most-recently-used window is first
// in its list
return (appIcon2.windows[0].get_user_time() -
appIcon1.windows[0].get_user_time());
}
},
_keyPressEvent : function(actor, event) {
let keysym = event.get_key_symbol();
let backwards = (event.get_state() & Clutter.ModifierType.SHIFT_MASK);
if (keysym == Clutter.Tab)
this._updateSelection(backwards ? -1 : 1);
else if (keysym == Clutter.Left)
this._updateSelection(-1);
else if (keysym == Clutter.Right)
this._updateSelection(1);
else if (keysym == Clutter.grave)
this._updateWindowSelection(backwards ? -1 : 1);
else if (keysym == Clutter.Up)
this._updateWindowSelection(-1);
else if (keysym == Clutter.Down)
this._updateWindowSelection(1);
else if (keysym == Clutter.Escape)
this.destroy();
return true;
},
_keyReleaseEvent : function(actor, event) {
let keysym = event.get_key_symbol();
if (keysym == Clutter.Alt_L || keysym == Clutter.Alt_R)
this._finish();
return true;
},
_appClicked : function(icon) {
Main.activateWindow(icon.windows[0]);
this.destroy();
},
_windowClicked : function(icon, window) {
if (window)
Main.activateWindow(window);
this.destroy();
},
_windowHovered : function(icon, window) {
if (window)
this._highlightWindow(window);
},
_mouseMoved : function(actor, event) {
if (++this._mouseMovement < POPUP_POINTER_SELECTION_THRESHOLD)
return;
this.actor.disconnect(this._motionEventId);
this._mouseActive = true;
actor = event.get_source();
while (actor) {
if (actor._delegate instanceof AppIcon.AppIcon) {
this._iconEntered(actor, event);
return;
}
actor = actor.get_parent();
}
},
_iconEntered : function(actor, event) {
let index = this._icons.indexOf(actor._delegate);
if (this._mouseActive)
this._updateSelection(index - this._selected);
},
_finish : function() {
if (this._highlightedWindow)
Main.activateWindow(this._highlightedWindow);
this.destroy();
},
destroy : function() {
this.actor.destroy();
},
_onDestroy : function() {
if (this._haveModal)
Main.popModal(this.actor);
if (this._lightbox)
this._lightbox.destroy();
if (this._keyPressEventId)
global.stage.disconnect(this._keyPressEventId);
if (this._keyReleaseEventId)
global.stage.disconnect(this._keyReleaseEventId);
},
_updateSelection : function(delta) {
this._icons[this._selected].setHighlight(false);
if (delta != 0 && this._selectedMenu)
this._selectedMenu.popdown();
this._selected = (this._selected + this._icons.length + delta) % this._icons.length;
this._icons[this._selected].setHighlight(true);
this._highlightWindow(this._currentWindows[this._selected]);
},
_menuPoppedUp : function(icon, menu) {
this._selectedMenu = menu;
},
_menuPoppedDown : function(icon, menu) {
this._selectedMenu = null;
},
_updateWindowSelection : function(delta) {
let icon = this._icons[this._selected];
if (!this._selectedMenu)
icon.popupMenu();
if (!this._selectedMenu)
return;
let next = 0;
for (let i = 0; i < icon.windows.length; i++) {
if (icon.windows[i] == this._highlightedWindow) {
next = (i + icon.windows.length + delta) % icon.windows.length;
break;
}
}
this._selectedMenu.selectWindow(icon.windows[next]);
},
_highlightWindow : function(metaWin) {
this._highlightedWindow = metaWin;
this._currentWindows[this._selected] = metaWin;
this._lightbox.highlight(this._highlightedWindow.get_compositor_private());
}
};