Hi, I wonder wether setting capabilties for KJobs should be "required". Currently you are presented with a "Pause" button in KWidgetJobTracker, even if the job does _not_ have the Suspendable capability.
Imo what would be nicer is jobs emiting a signal capabilitiesChanged to which all the graphical trackers -- be it the ones provided by Plasma or whatever -- connect and then change the ui accordingly. E.g. displaying a Pause button for jobs that support suspending. Now one backdraw could be code assuming the current behaviour --> i.e. ignoring capabilities to some (KWidgetJobTracker) degree. What do you think? Are there some other backdraws I have not thought of?
