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authorAlessandro Ghedini <al3xbio@gmail.com>2011-11-20 15:50:38 +0100
committerAlessandro Ghedini <al3xbio@gmail.com>2011-11-20 15:51:50 +0100
commit3997b71e281a5f43cc8c1892e85de30728df7b2d (patch)
tree96f2be7c48af03b7c540eba9dd6680eb270f23b8 /src/utilities/focusGrabber.vala
parent902829c62f552f35517783570025b479745de3c5 (diff)
Imported Upstream version 0.3.1
Diffstat (limited to 'src/utilities/focusGrabber.vala')
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+/*
+Copyright (c) 2011 by Simon Schneegans
+
+This program is free software: you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the Free
+Software Foundation, either version 3 of the License, or (at your option)
+any later version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+namespace GnomePie {
+
+/////////////////////////////////////////////////////////////////////////
+/// Some helper methods which focus the input on a given Gtk.Window.
+/////////////////////////////////////////////////////////////////////////
+
+public class FocusGrabber : GLib.Object {
+
+ /////////////////////////////////////////////////////////////////////
+ /// Utilities for grabbing focus.
+ /// Code from Gnome-Do/Synapse.
+ /////////////////////////////////////////////////////////////////////
+
+ public static void grab(Gtk.Window window) {
+ window.present_with_time(Gdk.CURRENT_TIME);
+ window.get_window().raise();
+ window.get_window().focus(Gdk.CURRENT_TIME);
+
+ int i = 0;
+ Timeout.add(100, () => {
+ if (++i >= 100) return false;
+ return !try_grab_window(window);
+ });
+ }
+
+ /////////////////////////////////////////////////////////////////////
+ /// Code from Gnome-Do/Synapse.
+ /////////////////////////////////////////////////////////////////////
+
+ public static void ungrab(Gtk.Window window) {
+ Gdk.pointer_ungrab(Gdk.CURRENT_TIME);
+ Gdk.keyboard_ungrab(Gdk.CURRENT_TIME);
+ Gtk.grab_remove(window);
+ }
+
+ /////////////////////////////////////////////////////////////////////
+ /// Code from Gnome-Do/Synapse.
+ /////////////////////////////////////////////////////////////////////
+
+ private static bool try_grab_window(Gtk.Window window) {
+ if (Gdk.pointer_grab(window.get_window(), true, Gdk.EventMask.BUTTON_PRESS_MASK |
+ Gdk.EventMask.BUTTON_RELEASE_MASK | Gdk.EventMask.POINTER_MOTION_MASK,
+ null, null, Gdk.CURRENT_TIME) == Gdk.GrabStatus.SUCCESS) {
+
+ if (Gdk.keyboard_grab(window.get_window(), true, Gdk.CURRENT_TIME) == Gdk.GrabStatus.SUCCESS) {
+ Gtk.grab_add(window);
+ return true;
+ } else {
+ Gdk.pointer_ungrab(Gdk.CURRENT_TIME);
+ return false;
+ }
+ }
+ return false;
+ }
+}
+
+}