D6831: Make use of kauth helper in methods of file ioslave

[David Faure]

dfaure added a comment.


  If you agree that showing an error message after hitting Cancel on the kauth prompt is suboptimal (I didn't actually test it), then it seems to me that a simple solution to turn `bool isPrivilegeOperationAllowed()` into a method that returns an enum? (same for `execWithElevatedPrivilege`)
  
  The values would be
  
  - Allowed (-> proceed)
  - Not allowed / not supported ( -> show error)
  - Canceled (-> don't show error)
  
  It's already a string true/false in the socket, that's easily extendable.

REVISION DETAIL
  https://phabricator.kde.org/D6831

To: chinmoyr, dfaure, #frameworks
Cc: #frameworks
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