enterNestedEventLoop as public API?

[Artem Ananiev]

I also think it's a good request for public API. In AWT/Swing, people 
had been using ugly workarounds with modal dialogs just to enter a 
nested event loop, until public java.awt API was finally provided:

http://docs.oracle.com/javase/7/docs/api/java/awt/SecondaryLoop.html

http://docs.oracle.com/javase/7/docs/api/java/awt/EventQueue.html#createSecondaryLoop()

The same is here in JavaFX: unless Toolkit.enter/exitNestedEventLoop() 
is exposed at javafx.* level, people will have to workaround it by using 
Stage, or calling into com.sun.javafx.*, which is not good.

Thanks,

Artem

On 11/13/2013 10:15 AM, John Hendrikx wrote:
> Hi List,
>
> Any chance that Toolkit.getToolkit().enterNestedEventLoop() will in the
> future become public API?
>
> I'm currently using this to create Dialogs based on a Pane to avoid
> creating Stages (which have the nice show and showAndWait
> functionality).  I duplicated this functionality in a Pane, allowing me
> to create Dialogs on top of existing Scenes without creating a Stage,
> and it makes use of the enterNestedEventLoop and exitNestedEventLoop
> functions in com.sun.javafx.tk.Toolkit.
>
> The reason I'm avoiding the Stages is because they donot play well with
> an application that never has the mouse or keyboard focus (my
> application is fully remote controlled) -- creating a Stage, even one to
> just show a Dialog, will cause Windows to try and attract the user's
> attention by flashing its taskbar button (for which I filed a
> bug/feature request) and this is undesired.
>
> Regards,
> John
>
> (Here's a part of the DialogPane to show and close it:)
>
>    public R showDialog(Scene scene, boolean synchronous) {
>      this.synchronous = synchronous;
>      this.scene = scene;
>      this.oldFocusOwner = scene.getFocusOwner();
>
>      Parent root = scene.getRoot();
>
>      stackPane.getChildren().add(root);
>      stackPane.getChildren().add(this);
>
>      scene.setRoot(stackPane);
>
>      requestFocus();
>
>      if(synchronous) {
>        return (R)Toolkit.getToolkit().enterNestedEventLoop(this);
>      }
>
>      return null;
>    }
>
>    public void close() {
>      Parent originalRoot = (Parent)stackPane.getChildren().remove(0);
>
>      scene.setRoot(originalRoot);
>      scene = null;
>
>      if(oldFocusOwner != null) {
>        oldFocusOwner.requestFocus();
>      }
>
>      if(synchronous) {
>        Toolkit.getToolkit().exitNestedEventLoop(this, getResult());
>      }
>    }
>
>