[gtk/flush-events: 2/2] gdk: Deliver queued events on flush

[Matthias Clasen <matthiasc src gnome org>]

commit c5ed5c5ff995f504de964fa1bc8472a4f670757f
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Oct 23 17:03:00 2020 -0400

    gdk: Deliver queued events on flush
    
    The current code was marking queued events as flushed,
    but left them in the queue. That doesn't make sense to
    me - we should deliver all events we have before we
    reach the paint phase of the frame cycle.

 gdk/gdkevents.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)
---
diff --git a/gdk/gdkevents.c b/gdk/gdkevents.c
index c768d22f23..9cfefd0d39 100644
--- a/gdk/gdkevents.c
+++ b/gdk/gdkevents.c
@@ -814,12 +814,17 @@ _gdk_event_queue_handle_motion_compression (GdkDisplay *display)
 void
 _gdk_event_queue_flush (GdkDisplay *display)
 {
-  GList *tmp_list;
-
-  for (tmp_list = display->queued_events.head; tmp_list; tmp_list = tmp_list->next)
+  while (TRUE)
     {
-      GdkEvent *event = tmp_list->data;
+      GdkEvent *event;
+
+      event = (GdkEvent *)g_queue_pop_head (&display->queued_events);
+      if (!event)
+        return;
+
       event->flags |= GDK_EVENT_FLUSHED;
+      _gdk_event_emit (event);
+      gdk_event_unref (event);
     }
 }