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bug#36672: 27.0.50; NS build: Creating child frame leads to empty space
From: |
martin rudalics |
Subject: |
bug#36672: 27.0.50; NS build: Creating child frame leads to empty space |
Date: |
Wed, 17 Jul 2019 10:39:15 +0200 |
>> Assume there are only one space - Desktop
>> 1. emacs -Q
>> 2. M-x toggle-frame-fullscreen
>> Now there are two spaces - Desktop and *scratch*
>> 3. eval (make-frame `((parent-frame . ,(window-frame))))
>> Now there are three spaces:
>> - Desktop
>> - Empty space named *scratch* with emacs menu
>> - *scratch* with emacs frames but without menu
>
> I hit C-x C-c at this point to exit Emacs and it completely crashed my
> session. Not great...
No backtrace? It sounds already strange that one apparently gets two
spaces with the same name "*scratch*" here. Do things return to
"normality" when one deletes the child frame before trying to exit
Emacs? BTW, does maximizing a frame run into similar problems?
> The patch looks good to me,
Does it work with two child frames of the same parent?
> but lets see if we can find solutions to
> these other issues. To be honest, given that Apple don’t provide any
> way to properly deal with spaces, I’d expect this stuff to be handled
> sensibly by default, but I guess that’s too much to ask.
>
>> 1. Removing parent-frame property leaves the frame is same space:
>>
>> (let ((new-frame (make-frame `((parent-frame . ,(window-frame))))))
>> (modify-frame-parameters new-frame `((parent-frame . nil))))
>>
>> Maybe child frame must go fullscreen if ex-parent frame is in
>> fullscreen.
Does making it fullscreen then give it a separate menu? Note also
that the new parent could be another frame (even a child frame).
> I suppose the best thing to do would be to move it onto the first
> space, but there’s no API for that, apparently.
What happens when one sets 'parent-frame' to nil and removes the
'NSWindowCollectionBehaviorFullScreenAuxiliary' simultaneously?
> Going fullscreen seems
> like a reasonable work‐around to me.
>
>> 2. Setting parent frame after frame creation:
>>
>> (let ((frame (window-frame))
>> (new-frame (make-frame)))
>> (modify-frame-parameters new-frame `((parent-frame . ,frame))))
>
> What do you see happening in this case? I’ve got spaces turned on and
> everything I do just seems to create a new fullscreen space (except
> when it crashes my session).
Can't one set the 'NSWindowCollectionBehaviorFullScreenAuxiliary' just
as with the initial frame here?
martin