Reworking the kwin tabbox

[Aurélien Gâteau]

Martin Gräßlin wrote:
>  * Why do we have to hold the alt key while switching? Can't we break with the 
> concept? (get rid of the keyboard grab) <- here I need input from the 
> usability experts. Would it be ok to break with such a concept although all 
> other plattforms use it? What could be a better solution than pressing alt? 
> When we break how can we provide a easy "migration path" for our users?

Be careful with this. Having to hold alt makes the tabbox a quasi-mode:
you just have to release the key to get back to normal mode. Removing
the need to hold alt would make the tabbox a real mode, so you will need
a more explicit way to quit it.

Aurélien