[gtk/wip/matthiasc/popup4: 84/94] window: Ignore events for other surfaces

[Matthias Clasen <matthiasc src gnome org>]

commit 3ef489aa456799d4649e67807a4cfebab941fa39
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Apr 27 02:00:09 2019 +0000

    window: Ignore events for other surfaces
    
    We don't want to set resize cursors on popovers.
    The underlying issue here is that we don't translate
    the coordinates between surfaces. For now, just
    ignore these events.

 gtk/gtkwindow.c | 7 +++++++
 1 file changed, 7 insertions(+)
---
diff --git a/gtk/gtkwindow.c b/gtk/gtkwindow.c
index 2502cdfabc..74d032313b 100644
--- a/gtk/gtkwindow.c
+++ b/gtk/gtkwindow.c
@@ -1768,6 +1768,13 @@ gtk_window_capture_motion (GtkWidget *widget,
     "w-resize",               "e-resize",
     "sw-resize", "s-resize", "se-resize"
   };
+  GdkEvent *event;
+  GdkSurface *surface;
+
+  event = gtk_get_current_event ();
+  surface = gdk_event_get_surface (event);
+  if (surface != _gtk_widget_get_surface (widget))
+    return;
 
   for (i = 0; i < 8; i++)
     {