enterNestedEventLoop as public API?

[Stephen F Northover]

What is the difference?

Dialog d = new Dialog() {
    public void onClose() {
       Platform.exitNestedEventLoop();
    }
}
Platform.enterNestedEventLoop();


Steve

On 2013-11-13 5:28 AM, Tom Schindl wrote:
> What bothers me with the API as it is today is that I have call
> enter/exit, I would find it more easy to work with an API like:
>
> -------8<-------
> WaitCondition c = new WaitCondition();
> Dialog d = new Dialog() {
>     public void onClose() {
>        c.release();
>     }
> }
> Platform.spinNestedEventLoop(c);
> ------->8-------
>
> Tom
>
> On 13.11.13 11:18, Artem Ananiev wrote:
>> 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());
>>>       }
>>>     }
>>>
>>>