Re: mouse-drag-mode-line should maybe use window-tree

[Lennart Borgman]

Richard M. Stallman wrote:

>    After spending some time wondering why you wrote the new function I 
>    realized that it was just enough to nicely fit the needs of the resizing 
>    functions. The new function also seems to work in all cases I have 
>    tested so far.
>
> If you're not careful about the order in which you move the edges,
> adjust-window-trailing-edge can easily give you an error.  The reason
> is that it never moves any edges above or below the one you specify to
> move, and it can't make any window too small.
>
> If you're not careful about the order to move the edges,
> some intermediate state could easily be invalid, resulting
> in an error.
>
> Perhaps your code copes with this issue already.  If not, it needs to.
>  
I think it copes with this. For the case of what I have called 
"interactive resize" (with the arrow keys) there are no problems. For 
the case of the new version of balance-windows (which I so far calls 
`bw-balance') I catch the errors and loop. So far I have seen no 
drawbacks with this.