[gtk+] gdk: Emulate motion events when requested

[Matthias Clasen <matthiasc src gnome org>]

commit 88ebe2285fc159a9c7adeabcce294e2ed8d09b68
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Mar 2 23:33:16 2012 -0500

    gdk: Emulate motion events when requested
    
    GtkRange was using GDK_POINTER_MOTION_MASK, and it was not
    getting any emulated motion events, because we only translate
    from GDK_BUTTON_MOTION_MASK to GDK_POINTER_MOTION_MASK, but not
    the other way around, and emulated_mask only had
    GDK_BUTTON_MOTION_MASK in it. Now we put GDK_POINTER_MOTION_MASK
    in emulated_mask and successfully match for windows that
    have GDK_POINTER_MOTION_MASK or any of the button motion masks
    selected.
    
    This fixes range sliders not following the finger and jumping
    to the last position upon release.

 gdk/gdkwindow.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gdk/gdkwindow.c b/gdk/gdkwindow.c
index 3388752..9a053b8 100644
--- a/gdk/gdkwindow.c
+++ b/gdk/gdkwindow.c
@@ -9158,7 +9158,7 @@ get_event_window (GdkDisplay                 *display,
           emulated_mask |= GDK_BUTTON_PRESS_MASK;
           break;
         case GDK_TOUCH_UPDATE:
-          emulated_mask |= GDK_BUTTON_MOTION_MASK;
+          emulated_mask |= GDK_POINTER_MOTION_MASK;
           break;
         case GDK_TOUCH_END:
           emulated_mask |= GDK_BUTTON_RELEASE_MASK;