Fix allegro apps which start fullscreen failing to start from gnome-shell

with a "Can not grab keyboard" error message

allegro-4.4.2-keybgrab-fix.patch

@@ -0,0 +1,43 @@
+diff -up allegro-4.4.2/src/x/xwin.c~ allegro-4.4.2/src/x/xwin.c
+--- allegro-4.4.2/src/x/xwin.c~	2015-06-23 11:04:53.000000000 +0200
++++ allegro-4.4.2/src/x/xwin.c	2015-06-23 11:09:33.010580738 +0200
+@@ -26,6 +26,7 @@
+ #include "xwin.h"
+ 
+ #include <string.h>
++#include <unistd.h>
+ #include <X11/Xlib.h>
+ #include <X11/Xutil.h>
+ #include <X11/cursorfont.h>
+@@ -736,6 +736,8 @@ static void _xwin_private_setup_driver_d
+ static BITMAP *_xwin_private_create_screen(GFX_DRIVER *drv, int w, int h,
+ 					   int vw, int vh, int depth, int fullscreen)
+ {
++   int i;
++
+    if (_xwin.window == None) {
+       ustrzcpy(allegro_error, ALLEGRO_ERROR_SIZE, get_config_text("No window"));
+       return 0;
+@@ -816,8 +818,20 @@ static BITMAP *_xwin_private_create_scre
+       XReparentWindow(_xwin.display, _xwin.window, _xwin.fs_window, 0, 0);
+ 
+       /* Grab the keyboard and mouse.  */
+-      if (XGrabKeyboard(_xwin.display, XDefaultRootWindow(_xwin.display), False,
+-			GrabModeAsync, GrabModeAsync, CurrentTime) != GrabSuccess) {
++
++      /*
++       * Sometimes the window-manager has grabbed the keyboard while it is
++       * starting an allegro app, so if grabing fails retry for 2 seconds
++       * before giving up.
++       */
++      for (i = 0; i < 20; i++) {
++         if (XGrabKeyboard(_xwin.display, XDefaultRootWindow(_xwin.display), False,
++			   GrabModeAsync, GrabModeAsync, CurrentTime) == GrabSuccess)
++            break;
++
++         usleep(100000); /* Sleep 100 ms before retrying */
++      }
++      if (i == 20) {
+ 	 ustrzcpy(allegro_error, ALLEGRO_ERROR_SIZE, get_config_text("Can not grab keyboard"));
+ 	 return 0;
+       }

allegro.spec

@@ -6,7 +6,7 @@
 
 Name:           allegro
 Version:        4.4.2
-Release:        12%{?dist}
+Release:        13%{?dist}
 
 Summary:        A game programming library
 Summary(es):    Una libreria de programacion de juegos
@@ -29,6 +29,8 @@ Patch7:         allegro-4.4.2-doc-install.patch
 Patch8:         allegro-4.4.2-mutex-fix.patch
 # Calling Xsync from the bg thread causes deadlock issues
 Patch9:         allegro-4.4.2-no-xsync-from-thread.patch
+# gnome-shell starts apps while gnome-shell has the keyb grabbed...
+Patch10:        allegro-4.4.2-keybgrab-fix.patch
 BuildRequires:  texinfo cmake
 BuildRequires:  xorg-x11-proto-devel libX11-devel libXpm-devel libXcursor-devel
 BuildRequires:  libXxf86vm-devel libXxf86dga-devel libGL-devel libGLU-devel
@@ -247,6 +249,7 @@ developing applications that use logg.
 %endif
 %patch8 -p1
 %patch9 -p1
+%patch10 -p1
 
 
 %build
@@ -415,6 +418,10 @@ fi
 
 
 %changelog
+* Tue Jun 23 2015 Hans de Goede <hdegoede@redhat.com> - 4.4.2-13
+- Fix allegro apps which start fullscreen failing to start from gnome-shell
+  with a "Can not grab keyboard" error message
+
 * Tue Jun 16 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 4.4.2-12
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild