use right check on mouse_x_up to prevent random crashes
use right check on mouse_x_up to prevent random crashes

tizenorg/platform.upstream.enlightenment,FlorentRevest/Enlightenment,tizenorg/platform.upstream.enlightenment,tasn/enlightenment,tasn/enlightenment,tizenorg/platform.upstream.enlightenment,rvandegrift/e,rvandegrift/e,FlorentRevest/Enlightenment,rvandegrift/e,tasn/enlightenment,FlorentRevest/Enlightenment