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bind-constraint: Don't update preferred size if source contains actor

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The ClutterBindConstraint will change the preferred size an actor
reports so it returns the same size as the source actor in some cases.
This behavior was introduced recently with 4f8e518d.

This can lead to infinite loops in case the source actor is a parent of
the actor the BindConstraint is attached to, that's because calling
get_preferred_size() on the source will recursively call
get_preferred_size() on the actor again.

So to avoid those loops, check if the source is a parent of the actor
we're attached to and don't update the preferred size in that case.

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1282
This commit is contained in:
Jonas Dreßler 2020-06-19 12:45:18 +02:00 committed by Georges Basile Stavracas Neto
parent 6ea0f8facc
commit 5c5dcd58b5
1 changed files with 3 additions and 0 deletions
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3
clutter/clutter/clutter-bind-constraint.c
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@ -165,6 +165,9 @@ clutter_bind_constraint_update_preferred_size (ClutterConstraint *constraint,
bind->coordinate == CLUTTER_BIND_ALL))
return;
if (clutter_actor_contains (bind->source, actor))
return;
switch (direction)
{
case CLUTTER_ORIENTATION_HORIZONTAL: