Package org.gnome.adw

Interface SwipeTracker.PrepareCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

SwipeTracker

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public static interface SwipeTracker.PrepareCallback
extends FunctionPointer

Functional interface declaration of the PrepareCallback callback.

See Also:

• run(org.gnome.adw.NavigationDirection)

Method Summary

Modifier and Type	Method	Description
void	run(NavigationDirection direction)	This signal is emitted when a possible swipe is detected.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, int) method.
default void	upcall(MemorySegment sourceSwipeTracker, int direction)	The upcall method is called from native code.

Method Details

run

void run(NavigationDirection direction)

This signal is emitted when a possible swipe is detected.

The direction value can be used to restrict the swipe to a certain direction.

upcall

default void upcall(MemorySegment sourceSwipeTracker,
 int direction)

The upcall method is called from native code. The parameters are marshaled and run(org.gnome.adw.NavigationDirection) is executed.

toCallback

default MemorySegment toCallback(Arena arena)

Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, int) method.

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the function pointer will be allocated in this arena

Returns:

the native function pointer