[LightDM] Onboard Virtual Keyboard resize at LightDM login Display

[Adam Nielsen]

> The theme and layout settings work fine, but the size never changes,
> the key for moving and resizing are missing. I can't do any dragging
> to resize the keyboard.

This is because these functions are handled by the window manager.  You
will need to load a window manager (such as XFCE) in order to have
these functions available.  LightDM is not a window manager.

> Does anyone have a solution for this?

Since window managers are very complex, it is unlikely LightDM will
ever support this.  Probably your best solution is to write a script
that retrieves the current screen resolution and then loads the
keyboard so that it is sized correctly for the screen size.

Otherwise the keyboard app itself will need to implement sizing and
moving, so that these functions can be used without a window manager
loaded.

Cheers,
Adam.