JFXPanel

[Anthony Petrov]

You should never perform anything of "AndWait" kind on a GUI event 
thread. This applies to any GUI toolkit, be it Java-based (e.g. Swing or 
FX), or a native API (e.g. WinAPI or Cocoa). Never.

The only case when you may "block" an event thread is when you show a 
modal dialog using an API of the GUI toolkit on the event thread of 
which you're currently running, or when you're starting a DragAndDrop 
operation from an event handler. In both these cases the toolkit will 
run a nested event loop for you so that GUI events are properly 
processed during the blocking operation, and therefore your application 
won't appear "frozen" to the end user.

I realize that you want to display a JOptionPane modally from FX 
perspective, but unfortunately this isn't quite possible. You should 
either use an FX modal dialog for this purpose, or display the modal 
JOptionPane from Swing code.

--
best regards,
Anthony

On 12/21/2012 6:23, Jeff Martin wrote:
> Is it possible to run a JOptionPane from the FXApplicationThread with SwingUtilities.invokeAndWait()?
> 
> I tried it and it hangs in CCursorManager.nativeGetCursorPosition() (which I've seen before when I've accidentally run swing code from the FXApplication thread).
> 
> jeff
> 
> On Dec 14, 2012, at 10:19 AM, Werner Lehmann <lehmann at media-interactive.de> wrote:
> 
>> Scott,
>>
>> JFXPanel has quite a few issues (look for JFXPanel or Swing in Jira). Among those is the filechooser problem. It is probably just one instance of the problem that a JavaFX stage cannot be modal or on top of Swing windows.
>>
>> To work around this we have to put JFXPanels in JDialogs. Not really sexy: apart from the overhead in code we know today that we have to touch this again one day to convert the JDialog to a stage.
>>
>> Regarding your problem of how to get from a node to the JFXPanel: no idea why you would want to do this. I have a dozen jfxpanels but never needed such a thing. I guess you could extend JFXPanel and add a reference to the fxpanel to some userdata on a node, or something like that.
>>
>> Rgds
>> Werner
>>
>> On 14.12.2012 16:39, Scott Palmer wrote:
>>> I'm trying to migrate more of my app from Swing to JavaFX piece-wise
>>> via JFXPanels.  It's not fun as there are many rough edges.  In order
>>> to work around some of them I am wondering if it is possible to get a
>>> reference to the JFXPanel if all I have is a Node? I can get the
>>> Scene's Window, an "Embedded" Window that seems to be the root of a
>>> lot of problems with popups and dialogs.  That seems to be enough to
>>> determine that the Node is hosted by a JFXPanel, but can I actually
>>> get the JFXPanel instance?
>>>
>>> If there is a way via public APIs that don't rely on me peaking at
>>> implementation details like com.sun.javafx.stage.EmbeddedWindow?
>>>
>>> Along this line… why is it that things like the FileChooser and other
>>> JavaFX dialogs don't respect the window ordering when used from a
>>> JFXPanel? They easily flip behind the parent JFrame.  I would have
>>> thought that the correct Window hierarchy in native land could still
>>> include the native window of the JFrame and that should prevent such
>>> things.
>>>
>>> Scott
>