Bug 358328

When right clicking on the icon an entry is written in the ~/.xsession-errors logfile:

Could not find DBusMenu interface, falling back to calling ContextMenu()
kde.xembedsniproxy: Received click 3 with passed x*y 1691 1169

(I do not know if this is of any interest?)

the first line is plasma trying to see if we have a DBus menu that it can show itself, before falling back to telling the app (in this case xembedsniproxy) to show a menuitself.

That's all correct

The second line is xembedsniproxy sending a right click to the java app at that co-ordinate.

Again, that's all correct.

I think I have some issues with the java apps and focus, but I need to poke round the java code to find out.

Interestingly the icon is able to open a small popup if the state of the watched minimserver changes (starting, stopping, rescanning). 

So maybe the click event for opening the context menu does not reach the app? (Well, just a guess, I do not know about the technical internals.)

*** Bug 356500 has been marked as a duplicate of this bug. ***

*** Bug 358487 has been marked as a duplicate of this bug. ***

just to add infos : Bug 358487 is not a java apps but a perl-gtk3 ( but the same final issue ).

FWIW, this also happens for radiotray (python/Gtk 3).

oh, that's interesting. Radiotray is one of the ones I tested against.

That could mean it's not a client toolkit issue but something else

(In reply to Jörg Walter from comment #7)
> FWIW, this also happens for radiotray (python/Gtk 3).

just fyi - I can't confirm; radiotray works very well for me and it is clickable: left (normal menu) and right (context menu) click

I see the same with remmina

(In reply to Wulf from comment #9)
> (In reply to Jörg Walter from comment #7)
> > FWIW, this also happens for radiotray (python/Gtk 3).
> 
> just fyi - I can't confirm; radiotray works very well for me and it is
> clickable: left (normal menu) and right (context menu) click

Note the toolkit: The Gtk-2 version (Ubuntu Wily) works, but the new Gtk-3 version (from xenial) fails.

Here is a small Java example. The context menu is not displayed:

Tray Icon Demo
https://docs.oracle.com/javase/tutorial/uiswing/examples/misc/index.html#TrayIconDemo

(To fix the warning, please enable metal instead of Windows LaF in ./src/misc/TrayIconDemo.java:
[...]
            //UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
            UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel");
[...]
)

We're running into this problem in Mageia v6/Cauldron - see https://bugs.mageia.org/show_bug.cgi?id=17592 .

Please don't add the VisualDesign flag to purely technical bugs. There is nothing for the VDG to do here.

Any news on this issue ?

I observe the same behaviour with Rachota app (http://rachota.sourceforge.net/en/index.html) - I see a blank square where icon should be and can not get any pop-up menu to appear. 

.xsession-errors:
Could not find DBusMenu interface, falling back to calling ContextMenu()
kde.xembedsniproxy: Received click 3 with passed x*y 1237 834
kde.xembedsniproxy: Received click 1 with passed x*y 1237 834

kde-apps/plasma-apps-15.08.3:4/15.08
kde-apps/plasma-runtime-15.12.3:4/15.12
kde-base/kdeplasma-addons-4.14.3:4/4.14
kde-base/libplasmaclock-4.11.22:4/4.11
kde-base/libplasmagenericshell-4.11.22:4/4.11
kde-frameworks/plasma-5.21.0:5/5.21
kde-plasma/plasma-desktop-5.6.2:5
kde-plasma/plasma-workspace-5.6.2:5
dev-libs/sni-qt-0.2.6-r1 
dev-libs/libappindicator-12.10.0-r200 
dev-libs/libappindicator-12.10.0-r300

On this bug there is two potential patch to fix/workaround this (at least for java app)

https://bugs.kde.org/show_bug.cgi?id=355504

(In reply to Elia Devito from comment #17)
> On this bug there is two potential patch to fix/workaround this (at least
> for java app)
> 
> https://bugs.kde.org/show_bug.cgi?id=355504

Maybe I am missing something, but after following all of these bugs, I came full circle back here. I am running DavMail and the icon, when I left click, a pop up says "JavaEmbeddedFrame", right click does nothing.

I can confirm for solaar, an application for controlling Logitech wireless devices, written in Python with GTK3 (not Java!).

Yeah, we(In reply to Michael Büker from comment #19)
> I can confirm for solaar, an application for controlling Logitech wireless
> devices, written in Python with GTK3 (not Java!).

Good luck... no one seems intended on fixing this "feature"

*bump* ?

(In reply to EMR_Kde from comment #21)
> *bump* ?

*bump* from me as well.

StarDict is affected aswell.

I just tested with plasma 5.7.0/5.24 from OpenSUSE Tumbleweed and it is still here.

In my case, it is a Windows prog running using wine.
BTW, as the icon is constantly animating, plasma keeps spamming my xerror with

kde.xembedsniproxy: Scaling pixmap of window 117440521 "" from w*h 20 20.

*** This bug has been marked as a duplicate of bug 362941 ***