bug#28512: 26.0.60; undecorated frames on macOS 10.13 do not resize properly

[Alan Third]

Alan Third <alan@idiocy.org> writes:

> On Wed, Oct 18, 2017 at 09:08:52AM -0700, Aaron Jensen wrote:
>> On October 17, 2017 at 1:59:03 AM, Alan Third
>> (alan@idiocy.org(mailto:alan@idiocy.org)) wrote:
>> 
>> > When you create an undecorated frame you’ll just have to also set the
>> > frame parameter drag-internal-border to t. Resizing is a bit flickery,
>> > but it should work as it’s being done through emacs lisp.
>> 
>> I didn’t know about this. That said, it’s not ideal. I don’t think I’d
>> actually use it because it prevents other applications (like
>> divvy/hammerspoon/etc) from resizing the frame. I do this w/ keyboard
>> shortcuts all the time and losing that is a non-starter. It also
>> doesn’t seem to allow diagonal resizing, which isn’t a huge deal, but
>> is unfortunate.
>
> Hmm, I take it these are not part of Emacs? The diagonal resizing
> should work, we just don’t have diagonal arrows because the ones macOS
> uses are undocumented.
>
>> If you’re up for coding it, I’d definitely be happy to test out the
>> recreate-the-frame option.
>
> I’d rather not, to be honest. The below option seems better where it’s
> supported, especially if borderless windows are deprecated.

Hi Aaron,

if you're still interested in this I've got a preliminary implementation
of the recreate-the-frame setup in the scratch/ns/refactor branch.

I've not changed the flags to make borderless frames resizable, but it
should be a simple change.
-- 
Alan Third