Hello,

unfortunately the KDiff3 context menu in Dolphin is substantially disturbing:
The sub-menu of KDiff3 opens on mouse-over immediately. Of course this is intended and good.
But path names are not truncated so that on long path names a quite fat bar pops up that covers up much of the screen.
I could live with this issue more or less, but when the length of the path name (the width of the sub-menu) exceeds the width of the screen the context menu grows to the complete height of the screen with an almost empty menu. 
No chance to click anywhere else!
In addition it reaches into the neighbour monitor according to the width of the pathname/sub-menu.

I don't know why this menu draws an empty unclickable menu (below the bottom entry) filling up the complete screen when its width exceeds the width of the screen. Maybe its a general problem how menus are drawn under KDE/Ubuntu/X/whatever. But I would suggest to shorten/limit the file entries to a reasonable size to get a compact, clear and readable sub-menu

Anyway according to readability: is it really necessary to format file-names as URL's? I mean this makes names even longer. Besides these annoying "%20" replacements I am using a lot of Unicode characters which makes names REALLY long and unreadable! In addition Unicode characters are transformed to UTF-8 which then is URN-encoded. Couldn't that be easier?

I have to deal with this problem quite frequently and I cannot shorten my path names as a workaround for this.

Please forgive if I haven’t understood the sense of KDiff3 yet but thank you anyway in anticipation :-)

Best regards,
Jens

Reproducible: Always

Steps to Reproduce:
1. choose a file with a LONG path in dolphin
2. right-click this file to open the context menu
3. hover with the mouse over the "KDiff3 …" menu entry

Actual Results:  
The sub-menu pops up (as it should) and is drawn with the width of its longest entry.
When this width exceeds the limits of the screen it grows to the height of the screen.

Expected Results:  
The menu-text should be in proper Unicode format (at least for local files) and it should be truncated if necessary (e.g. "~/…/This is a long pathname.txt" or "~/…/This is a l….txt").

Maybe the issue with menus growing to full screen height when exceed in screen width is a general KDE problem. I don't know. But I'd like to suggest to shorten menu text as a workaround.