D9830: Fix KFilePreviewGenerator::LayoutBlocker

[Fabian Vogt]

fvogt added a comment.


  In https://phabricator.kde.org/D9830#189776, @dfaure wrote:
  
  > I certainly hope QListView doesn't trigger a nested event loop, that would be horribly nasty and the cause for a million more problems.... (up to and including crashes when closing the view/window while this is happening). But I'm assuming this is just a supposition, and I'm strongly hoping it's unfounded ;-)
  
  
  Not QListView - the preview generator can do all kinds of stuff. There's also a slim change that something else does a full relayout - I didn't spot anything like that however.
  Normally I'd expect `QListView::setUniformItemSizes` to trigger a relayout on change though, so this fix is in any case correct.

REPOSITORY
  R241 KIO

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D9830

To: fvogt, #frameworks, dfaure
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