This means the number of touch sequences matches
[property@Gtk.Gesture:n-points].
Note: These conditions may also happen when an extra touch
(eg. a third touch on a 2-touches gesture) is lifted, in that
situation @sequence won't pertain to the current set of active
touches, so don't rely on this being true.
Emitted when the gesture is recognized.
This means the number of touch sequences matches [property@Gtk.Gesture:n-points].
Note: These conditions may also happen when an extra touch (eg. a third touch on a 2-touches gesture) is lifted, in that situation @sequence won't pertain to the current set of active touches, so don't rely on this being true.