When pressing the left mouse button above a checkbox in the "Display" page of the the "System Tray Settings" dialog for too long, Oxygen goes into window drag mode. This is buggy behavior, because a checkbox works like a button in the sense that you're supposed to be able cancel the operation mid-way by dragging the cursor away before releasing the mouse button. This isn't possible if instead the window is dragged along.
Screenshot of the "display" dialog you are referring too ? I can't seem to find it ...
Created attachment 47436 [details] System Tray Settings dialog It's available from the tray plasmoid context menu if you bring up the panel configurator. This is 4.5-beta1 btw.
SVN commit 1131789 by hpereiradacosta: Do not drag from KCategorizeView BUG: 239918 M +3 -0 oxygenwindowmanager.cpp WebSVN link: http://websvn.kde.org/?view=rev&revision=1131789
Confirmed fixed, thanks! (But it uncovers a terrible, terrible bug in KCategorizedView: If you click above one checkbox and then drag away and release on another, it checks the checkbox you release on - it should make sure that press and release occured on the same item. So I have another one to bug now ...)
Bug 239940 in case you want to follow it.
Yeah well. And in fact, the original bug (with drag) is also due to sloppy coding in kcategorizedView. oh well