[Wayland-bugs] [Bug 756780] wayland: Fix GtkTreeView's search window

[gtk+ (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=756780

--- Comment #3 from Jonas Ådahl <jadahl at gmail.com> ---
Created attachment 313618
  --> https://bugzilla.gnome.org/attachment.cgi?id=313618&action=edit
wayland: Don't try to use subsurfaces as popup parents

If a GtkMenu (or something else that is mapped as a xdg_popup) tries to
use a subsurface window as a parent, it will be terminated by the
compositor due to protocol violation. So to avoid this, if a parent
window is not a xdg_popup or xdg_surface, i.e. a wl_subsurface, then
traverse up the trasient parents until we find the right popup parent.

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