Re: [9front] rio: resize flash patch

[Amavect <amavect@gmail.com>]

On 11/21/2020 11:33 PM, ori@eigenstate.org wrote:
> The only question I have is whether there's an edge case
> with a program that opens the mouse device without doing
> any drawing of its own?
> 
> 'cat /dev/mouse' acts a bit funny, for example -- does
> this matter? Can we fix it?
> 

There are already quite a few if statements in rio that use 
Window->mouseopen. /sys/src/cmd/rio/wind.c:/^repaint/ is one of them 
affecting draw routines, but I'm not yet sure how it manifests.
Though I do enjoy printing out /dev/mouse on occasion, I don't think it 
matters very much. As a counterexample, 'cat /dev/kbd' is utterly broken 
as you cannot Delete to freedom. I'm not familiar with any non-gui mouse 
programs.

Having /dev/mouse signal window resize events was never the Right Thing.
/dev/wctl has a very similar output, and even signals on hide and on 
window activation, which may be nice to have. Taking control of a window 
would be opening wctl for reading. That kind of semantic sounds very 
nice. There are many edge cases, though, like winwatch.
Obviously, anything involving wctl would lead to a lot of retooling rio, 
and it would break a lot of things. Food for thought.

Thanks,
Amavect