D12321: Hide file preview when icon is too small

[Nathaniel Graham]

ngraham added a reviewer: Dolphin.
ngraham added a subscriber: sharvey.
ngraham added a comment.


  In D12321#249367 <https://phabricator.kde.org/D12321#249367>, @rkflx wrote:
  
  > The relation between the Preview and the Zoom slider is now a bit weird: You can override with the button, but once you move the slider the setting will be gone again. Also, when showing the dialog after closing it, the slider has preference over the button. In addition, even though the button says "enabled", users will wonder why no thumbnails are showing!
  >
  > Would it make sense to both:
  >
  > - Set the button state to "off" once the icons are too small, to make it clear that no previews are to be expected.
  > - Disable the button, so manually toggling thumbnails only works if icons are big enough.
  
  
  Something like this might be nice, but as you observed, it'll get real complicated real fast. And as @sharvey discovered in D12094 <https://phabricator.kde.org/D12094>, trying to coerce a KToggleAction into doing something it doesn't want to do can be daunting. My vote gots to disabling the button at small sizes, if that's easily possible.
  
  In D12321#249367 <https://phabricator.kde.org/D12321#249367>, @rkflx wrote:
  
  > Also, before this goes in I'd like to see a similar patch for Dolphin. Not so much because of any implemention issue, but to get the (not quite uncontroversial) idea more exposure and to agree on a common vision for how thumbnails should behave everywhere.
  
  
  Agreed. Let's also invite #dolphin <https://phabricator.kde.org/tag/dolphin/> into this discussion too. It's a shame the same view widget isn't used in both...

REPOSITORY
  R241 KIO

REVISION DETAIL
  https://phabricator.kde.org/D12321

To: anemeth, #vdg, #frameworks, ngraham, rkflx, #dolphin
Cc: sharvey, rkflx, ngraham, #frameworks, michaelh, bruns
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