[kde-community] Plasmoids and Apps - was - Re: Applications in KDE Generation 5

Kevin Krammer krammer at kde.org
Thu Jan 16 10:46:33 UTC 2014

On Thursday, 2014-01-16, 10:43:42, Aaron J. Seigo wrote:

> We’ve had plasma-windows for ages now which runs plasmoids in their own
> independent window like a mini application. For apps like ksnapshot and
> kcalc the results would be identical or nearly so (kcalc would require
> support for putting a menu[bar] somewhere, or reorganizing how those
> particular features are presented).

I also thought about plasma-windowed when reading that :)

However, I think it is one of those "hidden gems" that nobody knows about. 
I've had questions like "can I run $applet stand-alone" on the user support 
lists a couple of times and plasma-windowed was the answer.

Its drawback currently is that it is not very easy to figure out what to pass 
as its commandline argument.

> We also have an “application” form factor for plasmoids for ~1 year now
> which allows these components to make useful adjustments between being
> embedded as a plasmoid component and being run as a top-level window.

Wow, nice! I don't think I've ever heard about this before and I am even 
monitoring plasma-devel.

> I don’t think it makes huge amounts of sense to turn ksnapshot into a
> plasmoid, but KCalc probably would as it would give us feature parity
> between the version on the desktop (and panels). Right now we have 2
> calculators with differing features and levels of maintenance.

I think these kind of convergences will become more natural once we can do 
traditional UI with QML (either through QtQuick.Controls or 
DeclarativeWidgets). Using the same application logic both for stand-alone 
application as well as Plasma applet becomes trivial then.

Kevin Krammer, KDE developer, xdg-utils developer
KDE user support, developer mentoring
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