WebView.RunColorChooserCallback (java-gi API)

All Superinterfaces:: FunctionPointer

Enclosing class:: WebView

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 WebView.RunColorChooserCallback extends FunctionPointer

Functional interface declaration of the RunColorChooserCallback callback.

See Also:

Method Summary

Modifier and Type

Method

Description

boolean

run(ColorChooserRequest request)

This signal is emitted when the user interacts with a <input type='color' /> HTML element, requesting from WebKit to show a dialog to select a color.

default MemorySegment

toCallback(Arena arena)

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

default int

upcall(MemorySegment sourceWebView, MemorySegment request)

The upcall method is called from native code.

Method Details
- run
  
  boolean run(ColorChooserRequest request)
  
  This signal is emitted when the user interacts with a <input type='color' /> HTML element, requesting from WebKit to show a dialog to select a color. To let the application know the details of the color chooser, as well as to allow the client application to either cancel the request or perform an actual color selection, the signal will pass an instance of the WebKitColorChooserRequest in the request argument.
  It is possible to handle this request asynchronously by increasing the reference count of the request.
  The default signal handler will asynchronously run a regular GtkColorChooser for the user to interact with.
- upcall
  
  default int upcall(MemorySegment sourceWebView, MemorySegment request)
  
  The upcall method is called from native code. The parameters are marshaled and run(org.gnome.webkit.ColorChooserRequest) is executed.
- toCallback
  
  default MemorySegment toCallback(Arena arena)
  
  Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment) method.
  
  Specified by:
  
  toCallback in interface FunctionPointer
  
  Parameters:
  
  arena - the function pointer will be allocated in this arena
  
  Returns:
  
  the native function pointer