[PATCH v5 xdg-shell-unstable-v6] xdg-shell: Add min/max size requests

[Olivier Fourdan]

Hi,


> > Good point. Setting an invalid state should probably result in a
> > protocol error.
> 
> No this cannot be a protocol error because that makes it difficult to
> change the size range to a new one that does not intersect the old one.
> 
> Perhaps having the commit of an invalid state be a protocol error is ok.

We'd reach an invalid state only once it's applied, ie after the commit.

So the client can (and must) set a Min <= Max before the commit, otherwise it's an invalid state that will lead to a protocol error.

That's what I've tried to specify in v6:

	Values set in this way are double-buffered. They will get applied
	on the next commit.

	[...]

	Requesting a minimum size to be larger than the maximum size of
	a surface is illegal and will result in a protocol error.
	
Cheers,
Olivier