[mutter] clutter/align-constraint: Listen to queue-relayout signal of source

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 455de5d6d392d838e19569c3f78d1466d17a6dd4
Author: Jonas Dreßler <verdre v0yd nl>
Date:   Mon Jun 8 15:11:42 2020 +0200

    clutter/align-constraint: Listen to queue-relayout signal of source
    
    Just like the ClutterBindConstraint, the ClutterAlignConstraint should
    listen to "queue-relayout" of its source actor, not
    "notify::allocation". That's because the latter will queue a relayout
    during an allocation cycle and might cause relayout loops.
    
    https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1296

 clutter/clutter/clutter-align-constraint.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)
---
diff --git a/clutter/clutter/clutter-align-constraint.c b/clutter/clutter/clutter-align-constraint.c
index ed10ece2ef..2da101961b 100644
--- a/clutter/clutter/clutter-align-constraint.c
+++ b/clutter/clutter/clutter-align-constraint.c
@@ -84,12 +84,11 @@ G_DEFINE_TYPE (ClutterAlignConstraint,
                CLUTTER_TYPE_CONSTRAINT);
 
 static void
-source_position_changed (ClutterActor           *actor,
-                         GParamSpec             *pspec,
-                         ClutterAlignConstraint *align)
+source_queue_relayout (ClutterActor           *actor,
+                       ClutterAlignConstraint *align)
 {
   if (align->actor != NULL)
-    clutter_actor_queue_relayout (align->actor);
+    _clutter_actor_queue_only_relayout (align->actor);
 }
 
 static void
@@ -186,7 +185,7 @@ clutter_align_constraint_dispose (GObject *gobject)
                                             G_CALLBACK (source_destroyed),
                                             align);
       g_signal_handlers_disconnect_by_func (align->source,
-                                            G_CALLBACK (source_position_changed),
+                                            G_CALLBACK (source_queue_relayout),
                                             align);
       align->source = NULL;
     }
@@ -402,15 +401,15 @@ clutter_align_constraint_set_source (ClutterAlignConstraint *align,
                                             G_CALLBACK (source_destroyed),
                                             align);
       g_signal_handlers_disconnect_by_func (old_source,
-                                            G_CALLBACK (source_position_changed),
+                                            G_CALLBACK (source_queue_relayout),
                                             align);
     }
 
   align->source = source;
   if (align->source != NULL)
     {
-      g_signal_connect (align->source, "notify::allocation",
-                        G_CALLBACK (source_position_changed),
+      g_signal_connect (align->source, "queue-relayout",
+                        G_CALLBACK (source_queue_relayout),
                         align);
       g_signal_connect (align->source, "destroy",
                         G_CALLBACK (source_destroyed),