[mutter] cursor-tracker: Emit `cursor-changed` after renderer was updated

[Jonas Ådahl <jadahl src gnome org>]

commit c45d5f53ff0f96855319dce968b5082bcc5f37ed
Author: Jonas Ådahl <jadahl gmail com>
Date:   Thu Jan 3 16:40:42 2019 +0100

    cursor-tracker: Emit `cursor-changed` after renderer was updated
    
    Otherwise the cursor retrieved via meta_cursor_renderer_get_cursor() is
    out of date.
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/357

 src/backends/meta-cursor-tracker.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/src/backends/meta-cursor-tracker.c b/src/backends/meta-cursor-tracker.c
index 7ff0e7b0c..0d49327f4 100644
--- a/src/backends/meta-cursor-tracker.c
+++ b/src/backends/meta-cursor-tracker.c
@@ -118,11 +118,15 @@ change_cursor_renderer (MetaCursorTracker *tracker)
 static void
 sync_cursor (MetaCursorTracker *tracker)
 {
-  if (update_displayed_cursor (tracker))
-    g_signal_emit (tracker, signals[CURSOR_CHANGED], 0);
+  gboolean cursor_changed = FALSE;
+
+  cursor_changed = update_displayed_cursor (tracker);
 
   if (update_effective_cursor (tracker))
     change_cursor_renderer (tracker);
+
+  if (cursor_changed)
+    g_signal_emit (tracker, signals[CURSOR_CHANGED], 0);
 }
 
 static void