On Tue, Sep 14, 2021 at 12:21:27AM +0200, Kirill A. Korinsky wrote:
> Maybe it can be for some use.
> 
> I've attached the minimal patch which fixed issue for me.
> 
> This patch reverted some of your changes.
> 
> Because when I move to full screen => toolbar is dissapear, I feel that the root cause is replacing layoutSublayersOfLayer to layout.
> 
> Anyway, I don't know quartz and I can't minimize it future.

It has to be a timing issue. None of the code you're changing touches
the toolbar or its visibility, directly or indirectly, so any change
there can only be altering when various pieces of code are called.

Changing to and from fullscreen explicitly resets the toolbar's
visibility.

I think what we probably want to do is default the toolbar to
non-visible when it's created (at the moment it's using the default,
which I suspect is visible), and then rely on the fact that
update_frame_tool_bar is always called when it should be visible to
turn it back on.

Patch attached.
-- 
Alan Third