[gtk+/events-refactor: 823/1085] GdkDisplayX11: Make core pointer detection a bit more robust.

[Carlos Garnacho <carlosg src gnome org>]

commit 5515288fed76c2c7b04588cbfb14b20e7b9114c1
Author: Carlos Garnacho <carlos lanedo com>
Date:   Tue Aug 25 22:46:56 2009 +0200

    GdkDisplayX11: Make core pointer detection a bit more robust.
    
    Now it tries to detect the first device whose source is a mouse. Bear in
    mind that this is still quite weak and is just provided for backwards
    compatibility.

 gdk/x11/gdkdisplay-x11.c |   16 ++++++++++++++--
 1 files changed, 14 insertions(+), 2 deletions(-)
---
diff --git a/gdk/x11/gdkdisplay-x11.c b/gdk/x11/gdkdisplay-x11.c
index dc17a5b..ac0a61e 100644
--- a/gdk/x11/gdkdisplay-x11.c
+++ b/gdk/x11/gdkdisplay-x11.c
@@ -1110,8 +1110,20 @@ _gdk_input_init (GdkDisplay *display)
   list = gdk_device_manager_get_devices (device_manager, GDK_DEVICE_TYPE_FLOATING);
   display_x11->input_devices = g_list_concat (display_x11->input_devices, list);
 
-  /* Now set "core" pointer to the first master device */
-  display->core_pointer = display_x11->input_devices->data;
+  /* Now set "core" pointer to the first master device that is a pointer */
+  list = display_x11->input_devices;
+
+  while (list)
+    {
+      GdkDevice *device = list->data;
+      list = list->next;
+
+      if (device->source != GDK_SOURCE_MOUSE)
+        continue;
+
+      display->core_pointer = device;
+      break;
+    }
 }
 
 /**