clients: don't discard motion if we have a grab

We discard motion outside the window on the assumption it's from before
some event that caused the window to shrink. However, if we have a grab
it's likely that this motion is actually from dragging from the inside
of the window out.

This fixes a problem where drag selecting in weston terminal behaves
oddly - it doesn't update the select region while the drag is happening
outside the window.

Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Tested-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
1 file changed