D8056: Improve usability of "Open With" dialog by adding option to filter the application tree

[Henrik Fehlauer]

rkflx requested changes to this revision.
rkflx added a comment.
This revision now requires changes to proceed.


  I rebased and was just about to land this, but found a serious problem: Accepting via OK, double clicking or [Enter] will only work if you have typed at least a single character. Otherwise nothing will happen and the dialog just stays open.
  
  Can anybody confirm?
  
  Perhaps related: The OK button does get enabled correctly after selecting an item. However, it does not get disabled again when selecting a category. Sounds like something is still off wrt. tracking what is actually selected.)

REPOSITORY
  R241 KIO

REVISION DETAIL
  https://phabricator.kde.org/D8056

To: simgunz, dfaure, #frameworks, #vdg, ngraham, rkflx
Cc: rkflx, romangg, fabianr, abetts, ngraham, alexeymin, #frameworks, michaelh
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