wayland: Only try and process pointer events when focussed
wayland: Only try and process pointer events when focussed

When combining Clutter with GTK+ we can receive events for surfaces which in
the client side we do not have focussed.

ebassi/gtk,jigpu/gtk,grubersjoe/adwaita,chergert/gtk,ahodesuka/gtk,davidgumberg/gtk,bratsche/gtk-,ebassi/gtk,jessevdk/gtk,bratsche/gtk-,alexlarsson/gtk,alexlarsson/gtk,jigpu/gtk,davidgumberg/gtk,Adamovskiy/gtk,ahodesuka/gtk,Lyude/gtk-,ahodesuka/gtk,grubersjoe/adwaita,davidgumberg/gtk,alexlarsson/gtk,jigpu/gtk,jigpu/gtk,chergert/gtk,Adamovskiy/gtk,msteinert/gtk,chergert/gtk,Lyude/gtk-,jessevdk/gtk,jessevdk/gtk,Lyude/gtk-,grubersjoe/adwaita,jadahl/gtk,Lyude/gtk-,grubersjoe/adwaita,chergert/gtk,msteinert/gtk,Adamovskiy/gtk,Sidnioulz/SandboxGtk,alexlarsson/gtk,jadahl/gtk,Sidnioulz/SandboxGtk,ahodesuka/gtk,davidgumberg/gtk,chergert/gtk,jadahl/gtk,msteinert/gtk,jadahl/gtk,davidgumberg/gtk,bratsche/gtk-,ahodesuka/gtk,grubersjoe/adwaita,jigpu/gtk,davidgumberg/gtk,alexlarsson/gtk,chergert/gtk,jigpu/gtk,Sidnioulz/SandboxGtk,Adamovskiy/gtk,jadahl/gtk,chergert/gtk,jessevdk/gtk,Sidnioulz/SandboxGtk,bratsche/gtk-,Adamovskiy/gtk,jadahl/gtk,grubersjoe/adwaita,Adamovskiy/gtk,jessevdk/gtk,msteinert/gtk,Lyude/gtk-,Adamovskiy/gtk,davidgumberg/gtk,bratsche/gtk-,grubersjoe/adwaita,ahodesuka/gtk,bratsche/gtk-,Lyude/gtk-,ahodesuka/gtk,chergert/gtk,ahodesuka/gtk,ebassi/gtk,Lyude/gtk-,jigpu/gtk,Sidnioulz/SandboxGtk,jessevdk/gtk,jigpu/gtk,Sidnioulz/SandboxGtk,alexlarsson/gtk,msteinert/gtk,Lyude/gtk-,ebassi/gtk,jessevdk/gtk,msteinert/gtk,ebassi/gtk,davidgumberg/gtk,jadahl/gtk,jadahl/gtk,ebassi/gtk,alexlarsson/gtk,Adamovskiy/gtk,grubersjoe/adwaita,alexlarsson/gtk