JavaFX embedded (jre 8u6): touch problem (malformed multi touch event)

[Lisa Selle]

On 7/25/2014 10:06 AM, Prasant J wrote:
> On Wed, Jul 23, 2014 at 6:36 PM, Lisa Selle <lisa.selle at oracle.com> wrote:
>> Hi Prasant,
>>
>> This looks suspiciously related to
>> https://javafx-jira.kenai.com/browse/RT-34296.  If so, this bug *should* be
>> fixed in Monocle but it is not (and will not be) fixed in lens.
>>
> Thanks Lisa for pointing that out.
> First I tried to build the openjfx 8u6 (you pasted a link in another
> post) with the patch someone posted in the RT-34296 jira post.
>
> The patch had to be manually applied because it was created from a
> different changeset. Anyway, I was able to apply the patch and cross
> build successfully. However, only one touch was working. Second touch
> is not working (I could not figure out). The single touch is also
> sending two events and my application has different behaviour for one
> event and two events. So, I abandoned this idea and I;m building the
> latest javafx.
>
>> I believe you are building openJFX, correct?  If you can try a recent build
>> with the latest Monocle code (if you are building from OpenJFX, monocle is
>> now the default) the problem should be resolved. Please let us know if
>> that's not the case.
>>
> I was able to build from 8u-dev/rt (tag: 8u20-b23). However my
> application is recognizing the touch only on the main window. I have
> multi-touch in the pop-up window where even single touch in not
> working from some reason.
>
> Whenever I touch to bring up the pop-up window I get the following
> error message on console:
>
> Exception in thread "JavaFX Application Thread"
> java.lang.InstantiationError:
> com.sun.javafx.scene.traversal.TraversalEngine
>          at com.sun.javafx.scene.control.skin.ScrollPaneSkin.initialize(ScrollPaneSkin.java:242)
>          at com.sun.javafx.scene.control.skin.ScrollPaneSkin.<init>(ScrollPaneSkin.java:130)
>          at javafx.scene.control.ScrollPane.createDefaultSkin(ScrollPane.java:579)
>          at javafx.scene.control.Control.impl_processCSS(Control.java:878)
>          at javafx.scene.Parent.impl_processCSS(Parent.java:1267)
>          at javafx.scene.Parent.impl_processCSS(Parent.java:1267)
>          at javafx.scene.Parent.impl_processCSS(Parent.java:1267)
>          at javafx.scene.Node.processCSS(Node.java:8858)
>          at javafx.scene.Node.processCSS(Node.java:8851)
>          at javafx.scene.Node.processCSS(Node.java:8851)
>          at javafx.scene.Scene.doCSSPass(Scene.java:525)
>          at javafx.scene.Scene.access$3400(Scene.java:144)
>          at javafx.scene.Scene$ScenePulseListener.pulse(Scene.java:2358)
>          at com.sun.javafx.tk.Toolkit.lambda$runPulse$28(Toolkit.java:314)
>          at com.sun.javafx.tk.Toolkit$$Lambda$354/20040469.run(Unknown Source)
>          at java.security.AccessController.doPrivileged(Native Method)
>          at com.sun.javafx.tk.Toolkit.runPulse(Toolkit.java:313)
>          at com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:340)
>          at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:451)
>          at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:431)
>          at com.sun.javafx.tk.quantum.QuantumToolkit.lambda$runToolkit$363(QuantumToolkit.java:298)
>          at com.sun.javafx.tk.quantum.QuantumToolkit$$Lambda$71/28758344.run(Unknown
> Source)
>          at com.sun.glass.ui.monocle.RunnableProcessor.runLoop(RunnableProcessor.java:77)
>          at com.sun.glass.ui.monocle.RunnableProcessor.run(RunnableProcessor.java:47)
>          at java.lang.Thread.run(Thread.java:745)
> Dialog discovered: LayerSetupDialog
>
> To summarize, I have built latest javafx but cannot test my touch.
>
> Any suggestions?
Hi Prasant,

At this point we should open a jira to continue with this work.  Can you 
please create a jira and include the build information, as well as the 
runtime you are using (what platform, what touch screen).  If you can 
share the application you are using that would be helpful, I'm not sure 
what you are referring to by the main window and the popup window.  If 
not, can you create a simple test case which demonstrates the problem?

Thanks!

Lisa
>
>
> Regards, Prasant