Only 1 GUI thread & dialogs (was Re: 2 JavaFX applets in the same JVM)

[Stephen F Northover]

What is the question?  How are modal dialogs done in FX?  A new event 
loop is stacked on top of the old, running in the same thread.

Steve

On 2014-07-08, 5:54 PM, Richard Bair wrote:
> Hmmm… FX Experience is running for me. Is anybody else having this problem?
>
> Richard
>
> On Jul 8, 2014, at 2:51 PM, ngalarneau at ABINITIO.COM wrote:
>
>> Hi Steve,
>>
>> My understanding of Swing was that when in a modal dialog, which blocked
>> the EDT, a second EDT was fired up for the duration of the dialog to keep
>> the events flowing.
>>
>> When you say, below, that only 1 GUI thread is supported (and that thread
>> is the native GUI thread), how are (will?) modal dialogs handled?
>>
>>
>> Thanks,
>>
>> Neil
>>
>> P.S. I've been trying to read Jonathan's article on dialogs on
>> fxexperience.com, but haven't been able to because I get redirected to
>> hosting.xmission.com
>>
>>
>>
>> From:   Stephen F Northover <steve.x.northover at oracle.com>
>> To:     Kevin Rushforth <kevin.rushforth at oracle.com>,
>> ngalarneau at ABINITIO.COM,
>> Cc:     openjfx-dev at openjdk.java.net
>> Date:   07/08/2014 03:41 PM
>> Subject:        Re: 2 JavaFX applets in the same JVM
>>
>>
>>
>> This would imply that there was more than on distinguished GUI thread
>> per process.  JavaFX runs in the native GUI thread by design and more
>> than one GUI thread is not supported in JavaFX and on some platforms
>> (ie. Mac).
>>
>> Steve
>>
>> On 2014-07-08, 3:31 PM, Kevin Rushforth wrote:
>>>> Is running 2 JavaFX applets in the same JVM supported?
>>> No, this is not supported. RT-29969 (and the non-public RT-32321) is
>>> about running multiple applets from the same web page, each in their
>>> own JVM. By design, JavaFX runs each applet in its own VM. It is very
>>> unlikely that we would ever add the ability to run more than JavaFX
>>> applet in the same VM.
>>>
>>> -- Kevin
>>>
>>>
>>> ngalarneau at ABINITIO.COM wrote:
>>>> Hello,
>>>>
>>>> What is the status of running 2 JavaFX applets in the same JVM
>>>> (separate_jvm = false)?
>>>> When we try to load 2 applets into the same JVM we get a runtime
>>>> error (I think it was class loader related).
>>>>
>>>> When I searched in jira I found RT-29969 (the 2 applet test it refers
>>>> to may or may not be in the same JVM) which points to RT-32321 which
>>>> seems to be private (it gives me an error when I try to access it).
>>>>
>>>> Is running 2 JavaFX applets in the same JVM supported?
>>>>
>>>> If not, is that a bug or a feature?
>>>>
>>>>
>>>> Thanks,
>>>>
>>>> Neil
>>>>
>>>>
>>>>
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>>
>>
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