[Wayland-bugs] [Bug 772505] Wayland: menu does not resize after disabling an action

[gtk+ (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=772505

--- Comment #17 from Olivier Fourdan <ofourdan at redhat.com> ---
Created attachment 340744
  --> https://bugzilla.gnome.org/attachment.cgi?id=340744&action=edit
Simple reproducer

(In reply to Ernestas Kulik from comment #14)
> Yes, you’re right. I’ve only now started noticing that there’s a race
> condition [...]

You're spot on here, it *is* as race condition as demonstrated by this simple
reproducer.

For this to happen, you need to schedule an update of the content immediately
*after* showing the menu (showing the menu means mapping the window which, for
an xdg_popup under Wayland, means creating the xdg_positionner with the initial
given size).

Scheduling the menu content update synchronously or much later (with a larger
timeout) would avoid the the race condition.

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