Interface LinkButton.ActivateLinkCallback

All Superinterfaces:
FunctionPointer
Enclosing class:
LinkButton
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 LinkButton.ActivateLinkCallback extends FunctionPointer

Functional interface declaration of the ActivateLinkCallback callback.

See Also:

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    run()
    Emitted each time the GtkLinkButton is clicked.
    default MemorySegment
    toCallback(Arena arena)
    Creates a native function pointer to the upcall(MemorySegment) method.
    default int
    upcall(MemorySegment sourceLinkButton)
    The upcall method is called from native code.

  • Method Details

    • run

      boolean run()

      Emitted each time the GtkLinkButton is clicked.

      The default handler will call FileLauncher.launch(Window, Cancellable, AsyncReadyCallback) with the URI stored inside the Gtk.LinkButton:uri property.

      To override the default behavior, you can connect to the ::activate-link signal and stop the propagation of the signal by returning true from your handler.

    • upcall

      default int upcall(MemorySegment sourceLinkButton)
      The upcall method is called from native code. The parameters are marshaled and run() is executed.

    • toCallback

      default MemorySegment toCallback(Arena arena)
      Creates a native function pointer to the upcall(MemorySegment) method.
      Specified by:
      toCallback in interface FunctionPointer
      Parameters:
      arena - the arena in which the function pointer is allocated
      Returns:
      the native function pointer