D16311: [KFilePlacesView] Use asynchronous KIO::FileSystemFreeSpaceJob

[Kai Uwe Broulik]

broulik created this revision.
broulik added reviewers: Frameworks, dfaure, lbeltrame.
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REVISION SUMMARY
  This ensure hovering a broken mount will not freeze the UI.
  I already optimized it in D11088 <https://phabricator.kde.org/D11088> to avoid doing blocking calls for when the bar isn't shown but this patch makes it fully async now.
  Moreover, refresh only every 60 seconds (it's what Dolphin as well as Plasma's free space warning do), currently it would refresh every frame

TEST PLAN
  Capacity bar shows up for a mounted drive and updates after a while when you hover it again.
  It doesn't update "live" but it never did that, only happened to because it was querying free space like a mad man.
  
  In theory this would also enable free space bars for network shares but `CapacityBarRecommendedRole` is only for mounted local storage sans CD rom.

REPOSITORY
  R241 KIO

REVISION DETAIL
  https://phabricator.kde.org/D16311

AFFECTED FILES
  src/filewidgets/kfileplacesview.cpp

To: broulik, #frameworks, dfaure, lbeltrame
Cc: kde-frameworks-devel, michaelh, ngraham, bruns
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