Fix drag-and-drop keygrab unbinding

Solves http://dev.laptop.org/ticket/10643

Patch already upstream. Adding to Fedora with permission from
Matthias Clasen.

gtk2.spec

@@ -18,7 +18,7 @@
 Summary: The GIMP ToolKit (GTK+), a library for creating GUIs for X
 Name: gtk2
 Version: 2.24.4
-Release: 1%{?dist}
+Release: 2%{?dist}
 License: LGPLv2+
 Group: System Environment/Libraries
 URL: http://www.gtk.org
@@ -39,6 +39,7 @@ Patch8: tooltip-positioning.patch
 #Patch14: gtk2-landscape-pdf-print.patch
 # https://bugzilla.gnome.org/show_bug.cgi?id=611313
 Patch15: window-dragging.patch
+Patch16: gtkdnd-keycode-unbind.patch
 
 BuildRequires: atk-devel >= %{atk_version}
 BuildRequires: glib2-devel >= %{glib2_version}
@@ -155,6 +156,7 @@ This package contains developer documentation for the GTK+ widget toolkit.
 %patch8 -p1 -b .tooltip-positioning
 #%patch14 -p1 -b .landscape-pdf-print
 %patch15 -p1 -b .window-dragging
+%patch16 -p1 -b .keycode-unbind
 
 %build
 # For the gobject-introspection patch
@@ -350,6 +352,9 @@ fi
 %doc tmpdocs/examples
 
 %changelog
+* Mon Jun 13 2011 Daniel Drake <dsd@laptop.org> - 2.24.4-2
+- Fix unbinding of keycodes on drag-and-drop (olpc#10643)
+
 * Fri Apr  1 2011 Matthias Clasen <mclasen@redhat.com> - 2.24.4-1
 - Update to 2.24.4
 

gtkdnd-keycode-unbind.patch

@@ -0,0 +1,47 @@
+From 794a3706cd29f8457731b09ac39870ee1d11bf94 Mon Sep 17 00:00:00 2001
+From: Daniel Drake <dsd@laptop.org>
+Date: Sun, 12 Jun 2011 17:48:17 +0100
+Subject: [PATCH] gtkdnd: Don't bind/unbind keycodes that couldn't be
+ determined
+
+At http://dev.laptop.org/ticket/10643 we are seeing that drag-and-drop
+within the Sugar shell causes all of Sugar's custom keybindings to be
+removed.
+
+This is because gtkdnd tries to unbind XK_KP_Space, which (on my systems)
+is resolved to NoSymbol by XKeycodeToKeysym(). NoSymbol has value 0,
+the same as AnyKey, and XUngrabKey(AnyKey) is equivalent to unbinding
+all possible keycodes.
+
+Fix this by catching NoSymbol before binding/unbinding.
+
+https://bugzilla.gnome.org/show_bug.cgi?id=652402
+---
+ gtk/gtkdnd.c |    4 ++++
+ 1 files changed, 4 insertions(+), 0 deletions(-)
+
+diff --git a/gtk/gtkdnd.c b/gtk/gtkdnd.c
+index 4805a6f..617a02e 100644
+--- a/gtk/gtkdnd.c
++++ b/gtk/gtkdnd.c
+@@ -475,6 +475,8 @@ grab_dnd_keys (GtkWidget *widget,
+   for (i = 0; i < G_N_ELEMENTS (grab_keys); ++i)
+     {
+       keycode = XKeysymToKeycode (GDK_WINDOW_XDISPLAY (window), grab_keys[i].keysym);
++      if (keycode == NoSymbol)
++        continue;
+       XGrabKey (GDK_WINDOW_XDISPLAY (window),
+    	        keycode, grab_keys[i].modifiers,
+ 	        GDK_WINDOW_XID (root),
+@@ -508,6 +510,8 @@ ungrab_dnd_keys (GtkWidget *widget,
+   for (i = 0; i < G_N_ELEMENTS (grab_keys); ++i)
+     {
+       keycode = XKeysymToKeycode (GDK_WINDOW_XDISPLAY (window), grab_keys[i].keysym);
++      if (keycode == NoSymbol)
++        continue;
+       XUngrabKey (GDK_WINDOW_XDISPLAY (window),
+       	          keycode, grab_keys[i].modifiers,
+                   GDK_WINDOW_XID (root));
+-- 
+1.7.5.2
+