Blocking mouse on entering non reachable areas in multi-screen setups

[todd rme]

On Fri, Sep 24, 2010 at 2:43 AM, Asraniel <asraniel at fryx.ch> wrote:
> Am Donnerstag 23 September 2010, um 22.47:42 schrieb Martin Gräßlin:
>> On Thursday 23 September 2010 22:35:19 todd rme wrote:
>> > There is already a tool called noenter that worked pretty well, but it
>> > won't compile.  At the very least fixing that and letting people who
>> > want to compile it themselves would be nice.
>> >
>> > But, since noeneter works, it is possible to detect where invisible
>> > portions of the screen are.  And, from what someone said in the other
>> > thread, it is possible to teleport mice.  So the remaining question is
>> > whether it is possible to detect whether there is a screen on the
>> > other side of a blank portion.  If there is, then it should be
>> > possible to handle the situation you describe.
>>
>> Please note: I just showed one obvious way how this can result in problems.
>> I can think of many more. So I truly doubt that noenter "worked pretty
>> well" and the fact that it doesn't compile is for me a sign that it is so
>> broken that whoever worked on it abandoned it for good.
>
> For me it compiled very recently.
>
> But one thing i would like to mention. I doubt x.org will ever fix that. we
> have seen it with the tooltip hole bug that was never fixed, and now we needed
> to implement a workaround.
> Sure, we can just blame x.org for that the next 5 years, but i doubt that will
> benefit the users in the end.
>
> noenter worked quite well for me on my dualscreen setup (with different
> resolutions). Sure, it needs some improvements, but the basics are working.
> I might be naif, but for me such a feature doesn't sound that hard to code, in
> the end its just collision detection code with some special cases.
> And i don't think a separate programm should be needed for it to work, but
> that probably kwin should handel it.
>
> anyway, would be nice to see a solution :)
>
> have a nice day
>
> Beat Wolf

Noenter doesn't compile for me, it complains that it "Could not find
Kephal", and when I asked about that someone said Kephal was never
meant to be a public api in the first place so it shouldn't be used.

-Todd