Integrating JFX Dialog/Stage in Swing application

[Anthony Petrov]

> Platform.setImplicitExit(false)

^^^^
This is the correct answer. Please see the javadoc for more details.

--
best regards,
Anthony

On 5/31/2014 10:19 PM, Jeff Martin wrote:
> You might try calling that new JFXPanel() in your application main. Maybe go ahead and call Platform.setImplicitExit(false) as well.
>
> jeff
>
>
> On May 31, 2014, at 9:46 AM, Robert Krüger <krueger at lesspain.de> wrote:
>
>> That was quicker than I had hoped. Invoking close() on the stage
>> constructed in this way results in this here:
>>
>> [ERROR|16:24:23] d.l.m.MediaTool Uncaught exception in thread JavaFX
>> Application Thread: [JavaFX Application Thread]
>> java.lang.IllegalStateException: This operation is permitted on the
>> event thread only; currentThread = JavaFX Application Thread
>> at com.sun.glass.ui.Application.checkEventThread(Application.java:427)
>> ~[jfxrt.jar:na]
>> at com.sun.glass.ui.View.isClosed(View.java:409) ~[jfxrt.jar:na]
>> at com.sun.glass.ui.mac.MacTouchInputSupport.notifyNextTouchEvent(MacTouchInputSupport.java:122)
>> ~[jfxrt.jar:na]
>> at com.sun.glass.ui.mac.MacGestureSupport.notifyNextTouchEvent(MacGestureSupport.java:77)
>> ~[jfxrt.jar:na]
>>
>> I checked in the debugger and com.sun.glass.ui.Application#eventThread
>> is null. This makes me believe the environment is not properly
>> initialized despite the invocation on new JFXPanel() that I have in
>> the EDT before the stage is built.
>>
>> On Sat, May 31, 2014 at 4:15 PM, Robert Krüger <krueger at lesspain.de> wrote:
>>> Hi Jeff,
>>>
>>> thanks, yeah, that's a workaround I have also found. I am just asking
>>> myself (and the JFX developers on this list) why this kind of
>>> Integration is not supported directly.
>>>
>>> Good to know that you have used this quite a bit. So I'll try using it
>>> until someone brings up a nicer solution or I run into any problems
>>> :-).
>>>
>>> Cheers,
>>>
>>> Robert
>>>
>>> On Sat, May 31, 2014 at 3:57 PM, Jeff Martin <jeff at reportmill.com> wrote:
>>>> I'm sure this isn't the proper answer, but I have used this call to initialize the FX toolkit on demand from various Swing contexts and it has always worked for me:
>>>>
>>>>         new javafx.embed.swing.JFXPanel();
>>>>
>>>> Then you would need the Platform.runLater(). Usually for the whole method that creates your UI and shows the Stage. In some cases, I would make the first line of my method that ends up invoking the JFX dialog something like this:
>>>>
>>>> public void doSomething()
>>>> {
>>>>         // Ensure we're on FX thread
>>>>         if(!Platform.isFXApplicationThread()) {
>>>>                 Platform.runLater(new Runnable() { public void run() { doSomething(); } return; }
>>>>
>>>>         … <create FX UI and do stage.show()> ...
>>>> }
>>>>
>>>> I've done quite a bit of this and it works without problems (for me).
>>>>
>>>> jeff martin
>>>>
>>>> On May 31, 2014, at 7:27 AM, Robert Krüger <krueger at lesspain.de> wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> I am trying something which I thought would technically be the easiest
>>>>> way of migrating parts of an existing application from Swing to JFX,
>>>>> i.e. have a Swing JMenuItem trigger the showing of a JFX stage because
>>>>> I thought this would technically even be cleaner than to have a swing
>>>>> dialog containing an JFXPanel.
>>>>>
>>>>> Doing this results in the following Exception:
>>>>>
>>>>> java.lang.IllegalStateException: Toolkit not initialized
>>>>> at com.sun.javafx.application.PlatformImpl.runLater(PlatformImpl.java:276)
>>>>> ~[jfxrt.jar:na]
>>>>> at com.sun.javafx.application.PlatformImpl.runLater(PlatformImpl.java:271)
>>>>> ~[jfxrt.jar:na]
>>>>> at javafx.application.Platform.runLater(Platform.java:78) ~[jfxrt.jar:na]
>>>>> at de.lesspain.mediatool.menu.ToolsSubmenu$1.actionPerformed(ToolsSubmenu.java:20)
>>>>> ~[
>>>>>
>>>>> javadoc of runLater states:
>>>>>
>>>>> This method must not be called before the FX runtime has been
>>>>> initialized. For standard JavaFX applications that extend Application,
>>>>> and use either the Java launcher or one of the launch methods in the
>>>>> Application class to launch the application, the FX runtime is
>>>>> initialized by the launcher before the Application class is loaded.
>>>>> For Swing applications that use JFXPanel to display FX content, the FX
>>>>> runtime is initialized when the first JFXPanel instance is
>>>>> constructed.
>>>>>
>>>>> So this is consistent. Still I am wondering, why it should not be
>>>>> supported to just trigger opening a stage from a Swing menu? Either by
>>>>> Platform.runLater autoinitializing or offering a separate method like
>>>>> Platform.ensureInitialized().
>>>>>
>>>>> Am I missing something obvious?
>>>>>
>>>>> Thanks,
>>>>>
>>>>> Robert
>>>>
>>>
>>>
>>>
>>> --
>>> Robert Krüger
>>> Managing Partner
>>> Lesspain GmbH & Co. KG
>>>
>>> www.lesspain-software.com
>>
>>
>>
>> --
>> Robert Krüger
>> Managing Partner
>> Lesspain GmbH & Co. KG
>>
>> www.lesspain-software.com
>