Interface WebFormManager.FormControlsAssociatedCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

WebFormManager

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 WebFormManager.FormControlsAssociatedCallback
extends FunctionPointer

Functional interface declaration of the FormControlsAssociatedCallback callback.

Since:

2.40

See Also:

• run(Frame, Value[])

Method Summary

Modifier and Type	Method	Description
void	run(@Nullable Frame frame, @Nullable Value @Nullable [] elements)	Emitted after form elements (or form associated elements) are associated to frame. This is useful to implement form auto filling for web pages where form fields are added dynamically.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(MemorySegment, MemorySegment, MemorySegment) method.
default void	upcall(MemorySegment sourceWebFormManager, MemorySegment frame, MemorySegment elements)	The upcall method is called from native code.

Method Details

run

void run(@Nullable Frame frame,
 @Nullable Value @Nullable [] elements)

Emitted after form elements (or form associated elements) are associated to frame. This is useful to implement form auto filling for web pages where form fields are added dynamically. This signal might be emitted multiple times for the same frame.

Note that this signal could be also emitted when form controls are moved between forms. In that case, the elements array carries the list of those elements which have moved.

Clients should take a reference to the members of the elements array if it is desired to keep them alive after the signal handler returns.

Since:

2.40

upcall

default void upcall(MemorySegment sourceWebFormManager,
 MemorySegment frame,
 MemorySegment elements)

The upcall method is called from native code. The parameters are marshaled and run(Frame, 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