void get_swipe_area ( AdwSwipeable* self, AdwNavigationDirection navigation_direction, gboolean is_drag, GdkRectangle* rect )
Gets the area
self can start a swipe from for the given direction and
This can be used to restrict swipes to only be possible from a certain area, for example, to only allow edge swipes, or to have a draggable element and ignore swipes elsewhere.
If not implemented, the default implementation returns the allocation of
self, allowing swipes from anywhere.
Available since: 1.0
The direction of the swipe.
Whether the swipe is caused by a dragging gesture.
A pointer to a rectangle to store the swipe area.
The argument will be set by the function. The data is owned by the function.