Interface TabBar.ExtraDragDropCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

TabBar

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 TabBar.ExtraDragDropCallback
extends FunctionPointer

Functional interface declaration of the ExtraDragDropCallback callback.

See Also:

• run(TabPage, Value)

Method Summary

Modifier and Type	Method	Description
boolean	run(@Nullable TabPage page, @Nullable Value value)	Emitted when content is dropped onto a tab.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(MemorySegment, MemorySegment, MemorySegment) method.
default int	upcall(MemorySegment sourceTabBar, MemorySegment page, MemorySegment value)	The upcall method is called from native code.

Method Details

run

boolean run(@Nullable TabPage page,
 @Nullable Value value)

Emitted when content is dropped onto a tab.

The content must be of one of the types set up via TabBar.setupExtraDropTarget(Set, Type[]).

See Gtk.DropTarget::drop.

upcall

default int upcall(MemorySegment sourceTabBar,
 MemorySegment page,
 MemorySegment value)

The upcall method is called from native code. The parameters are marshaled and run(TabPage, Value) is executed.

toCallback

default MemorySegment toCallback(Arena arena)

Creates a native function pointer to the upcall(MemorySegment, MemorySegment, MemorySegment) method.

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the arena in which the function pointer is allocated

Returns:

the native function pointer