D17544: virtualkeyboard: report the size of the inputwindow

mart added inline comments.

INLINE COMMENTS

> graesslin wrote in virtualkeyboard.cpp:248
> Yeah, overall it looks like we cannot really support this easily. I would tend to say we can ignore sub surfaces here, but it's quite likely that those change when overlapped by virtual keyboard.
> 
> We have a few bits:
> 
> - we can get the root surface from any surface
> - we can Toplevel for the surface
> - surface provides a signal when the subsurface tree  changes
> - on Toplevel we have an input transformation to map from global coordinate system to root surface coordinate system
> - KWayland internally can support  mapping coordinates from root surface to sub surface
> 
> So either connect to the relevant signals in KWin or extend KWayland to do the calculation for the overlap from global to surface local coordinate system.

would be the SubSurfaceInterface::pos member?

would this reasoning be correct?

so, if a surface is a subsurface

- get the main surface
- get its pos in the surface
- get the toplevel of the surface

*final position is toplevel position + "pos" of the subsurface

REPOSITORY
  R108 KWin

REVISION DETAIL
  https://phabricator.kde.org/D17544

To: mart, #plasma, #kwin, bshah, graesslin
Cc: graesslin, davidedmundson, kwin, mart, kvanton, jraleigh, GB_2, mkulinski, ragreen, jackyalcine, Pitel, iodelay, bwowk, ZrenBot, ngraham, lesliezhai, ali-mohamed, hardening, jensreuterberg, abetts, sebas, apol