[Wayland-bugs] [Bug 759299] wayland: possible infinite loop in gdkwindow-wayland

[gtk+ (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=759299

--- Comment #12 from Matthias Clasen <mclasen at redhat.com> ---
(In reply to Olivier Fourdan from comment #11)
> I reckon you need to set the transient_for first to walk up the tree and
> detect all possibilities.
> 
> Consider this case, two valid and distinct transient trees (where "->" means
> "is transient for"):
> 
> [ A ] -> [ B ] -> [ C ]
> 
> And 
> 
> [ D ] -> [ E ] -> [ A ]
> 

How is this two trees, and not just d -> e -> a -> b -> c ?

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