No indicator message in Message Indicator

Sebastian Kügler sebas at
Mon Feb 15 16:08:16 GMT 2010

On Monday 15 February 2010 16:44:01 Aurélien Gâteau wrote:
> Aurélien Gâteau wrote:
> > Celeste Lyn Paul wrote:
> >> Application icons in the status bar appear and disappear all the time,
> >> I don't think that is weird. I think of the MI as a service, and if it
> >> isn't applicable then it shouldn't be there (to be fair, I feel the
> >> same way about the KDE notifications indicator as well. I don't think
> >> it should be visible if you don't have any current messages or
> >> messages in the queue).
> > 
> > Hehe, just disable notifications and job handling in the systemtray and
> > it goes away ;)
> > 
> >> However, moving and removing it on the panel is an issue. Do you know
> >> if you could make the widget visible only in edit mode? The
> >> visualization might be tricky to get across the widget is there, just
> >> invisible. Maybe desaturated icon? Hmm.
> > 
> > That's a good idea. I'll give it a try tomorrow. Will also look at the
> > spacer widget, as suggested by Mackenzie.
> Today I had a look at the spacer widget, and didn't notice any
> difference in the rendering between normal and edit mode :/. Doesn't
> mean it can't be done, though, I need to check with the plasma devs.
> I found an interesting feature of Plasma applets though: when an applet
> is embedded in the systemtray, it can set a "status", similar to what
> applications can do with KStatusNotifierItem items. When an applet sets
> its status to passive, it is not visible in the systemtray unless one
> clicks on the "expand" arrow.

If you put 

into the .desktop file of the applet, you will also be able to enable and disable the 
applet from the systemtray configuration (since 4.4).

From the systray config, the default setting to show/hide it is auto, you can choose 
per applet if it should be always shown, or never or automatically (the desired 
behaviour you're describing above).

> I implemented this here, setting the applet status to Passive if no M-I
> application is running, Active if there is at least one M-I application
> running, and NeedsAttention when a M-I application requests attention.
> Since I am getting short in time, I am thinking of just removing the
> "url" part of my message panel, so that the applet is not Kubuntu
> specific. As long as the applet is embedded in the systemtray, users
> will get the autohiding feature.
> What do you think?

Putting it in the systray sounds like a sane approach IMO.
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