D8850: WIP: support drag and drop between shared folder view containments

[Kai Uwe Broulik]

broulik added a comment.


  I think only drops between //containments// should be special-cased.

REPOSITORY
  R119 Plasma Desktop

REVISION DETAIL
  https://phabricator.kde.org/D8850

To: mwolff, amantia
Cc: broulik, plasma-devel, ZrenBot, progwolff, lesliezhai, ali-mohamed, 
jensreuterberg, abetts, sebas, apol, mart