gesture-grabber: Ignore events not meant for the root window
gesture-grabber: Ignore events not meant for the root window

The passive touch grab is set on the root window, so if touch
events get to a different window it's best to leave those for
GTK+ to handle.

Signed-off-by: Carlos Garnacho <ab5e2bca84933118bbc9d48ffaccce3bac4eeb64@lanedo.com>
Acked-by: Simon Schampijer <088e16a1019277b15d58faf0541e11910eb756f6@laptop.org>

manuq/sugar-toolkit-gtk3,godiard/sugar-toolkit-gtk3,gusDuarte/sugar-toolkit-gtk3,sugarlabs/sugar-toolkit-gtk3,quozl/sugar-toolkit-gtk3,ceibal-tatu/sugar-toolkit-gtk3,gusDuarte/sugar-toolkit-gtk3,tchx84/debian-pkg-sugar-toolkit-gtk3,sugarlabs/sugar-toolkit-gtk3,i5o/sugar-toolkit-gtk3,samdroid-apps/sugar-toolkit-gtk3,tchx84/sugar-toolkit-gtk3,godiard/sugar-toolkit-gtk3,puneetgkaur/backup_sugar_sugartoolkit,manuq/sugar-toolkit-gtk3,i5o/sugar-toolkit-gtk3,i5o/sugar-toolkit-gtk3,godiard/sugar-toolkit-gtk3,quozl/sugar-toolkit-gtk3,Daksh/sugar-toolkit-gtk3,ceibal-tatu/sugar-toolkit-gtk3,puneetgkaur/backup_sugar_sugartoolkit,samdroid-apps/sugar-toolkit-gtk3,samdroid-apps/sugar-toolkit-gtk3,gusDuarte/sugar-toolkit-gtk3,gusDuarte/sugar-toolkit-gtk3,sugarlabs/sugar-toolkit-gtk3,tchx84/sugar-toolkit-gtk3,manuq/sugar-toolkit-gtk3,tchx84/debian-pkg-sugar-toolkit-gtk3,quozl/sugar-toolkit-gtk3,puneetgkaur/sugar-toolkit-gtk3,tchx84/debian-pkg-sugar-toolkit-gtk3,puneetgkaur/backup_sugar_sugartoolkit,i5o/sugar-toolkit-gtk3,puneetgkaur/sugar-toolkit-gtk3,Daksh/sugar-toolkit-gtk3,Daksh/sugar-toolkit-gtk3,quozl/sugar-toolkit-gtk3,samdroid-apps/sugar-toolkit-gtk3,ceibal-tatu/sugar-toolkit-gtk3,tchx84/sugar-toolkit-gtk3,puneetgkaur/sugar-toolkit-gtk3