[Wayland-bugs] [Bug 771915] [Wayland]: Totem window misplaced after a state change

[gtk+ (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=771915

--- Comment #9 from Olivier Fourdan <ofourdan at redhat.com> ---
(In reply to Olivier Fourdan from comment #5)
> I suspect this bug here is caused by the correct shadow border being applied
> sooner (required to set the correct min/max size, see bug 771561), which
> sets the right container size sooner and somehow shortcuts the update of
> abs_x/abs_y in recompute_visible_regions_internal(), or something along
> these lines...

Quick folllow-up on my previous comment, the shortcut in question is in
gtk_widget_size_allocate_with_baseline():

  https://git.gnome.org/browse/gtk+/tree/gtk/gtkwidget.c#n6101

  6102: if (!alloc_needed && !size_changed && !position_changed &&
!baseline_changed)
  6103:    goto out;

That prevents the size_allocate to be propagated to clutter-gtk's
gtk_clutter_embed_size_allocate() which reposition the sub-surface where it
should be. Removing this test fixes the issue, but it's still not an
/acceptable/ fix.

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