[gtk/wip/carlosg/touchpad-gesture-fixes: 2/3] gtk/main: Do not use touchpad event sequence for pointer focus lookup

[Carlos Garnacho <carlosg src gnome org>]

commit 8e86e6325b4138a8ef0bb4ab8ef77627e6da3e03
Author: Carlos Garnacho <carlosg gnome org>
Date:   Wed Jan 26 15:59:36 2022 +0100

    gtk/main: Do not use touchpad event sequence for pointer focus lookup
    
    Despite touchpad gestures having a sequence, these must use the logical
    pointer focus. Avoid using the sequence for GtkPointerFocus lookups with
    those events, in order to ensure those events make it all the way to the
    intended target.
    
    This is fallout from adding GdkEventSequence information to touchpad
    gestures.

 gtk/gtkmain.c | 8 ++++++++
 1 file changed, 8 insertions(+)
---
diff --git a/gtk/gtkmain.c b/gtk/gtkmain.c
index c96bfb3c81..bfab35ad61 100644
--- a/gtk/gtkmain.c
+++ b/gtk/gtkmain.c
@@ -1352,6 +1352,14 @@ handle_pointing_event (GdkEvent *event)
        */
       device = gdk_seat_get_pointer (gdk_event_get_seat (event));
     }
+  else if (type == GDK_TOUCHPAD_PINCH ||
+           type == GDK_TOUCHPAD_SWIPE)
+    {
+      /* Another bit of a kludge, touchpad gesture sequences do not
+       * reflect on the pointer focus lookup.
+       */
+      sequence = NULL;
+    }
 
   switch ((guint) type)
     {