Interface TabView.PageDetachedCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

TabView

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 TabView.PageDetachedCallback
extends FunctionPointer

Functional interface declaration of the PageDetachedCallback callback.

See Also:

• run(TabPage, int)

Method Summary

Modifier and Type	Method	Description
void	run(@Nullable TabPage page, int position)	Emitted when a page has been removed or transferred to another view.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(MemorySegment, MemorySegment, int) method.
default void	upcall(MemorySegment sourceTabView, MemorySegment page, int position)	The upcall method is called from native code.

Method Details

run

void run(@Nullable TabPage page,
 int position)

Emitted when a page has been removed or transferred to another view.

A typical reason to connect to this signal would be to disconnect signal handlers connected in the TabView::page-attached handler.

It is important not to try and destroy the page child in the handler of this function as the child might merely be moved to another window; use child dispose handler for that or do it in sync with your TabView.closePageFinish(TabPage, boolean) calls.

upcall

default void upcall(MemorySegment sourceTabView,
 MemorySegment page,
 int position)

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

toCallback

default MemorySegment toCallback(Arena arena)

Creates a native function pointer to the upcall(MemorySegment, 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