Package org.gnome.gtk

Interface ListView.ActivateCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

ListView

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 ListView.ActivateCallback
extends FunctionPointer

Functional interface declaration of the ActivateCallback callback.

See Also:

• run(int)

Method Summary

Modifier and Type	Method	Description
void	run(int position)	Emitted when a row has been activated by the user.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, int) method.
default void	upcall(MemorySegment sourceListView, int position)	The upcall method is called from native code.

Method Details

run

void run(int position)

Emitted when a row has been activated by the user.

Activation usually happens via the list.activate-item action of the GtkListView.

This allows for a convenient way to handle activation in a listview. See ListItem.setActivatable(boolean) for details on how to use this signal.

upcall

default void upcall(MemorySegment sourceListView,
 int position)

The upcall method is called from native code. The parameters are marshaled and run(int) 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 arena in which the function pointer is allocated

Returns:

the native function pointer