Review Request 123783: Adjust showing desktop behavior

[Thomas Lübking]

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https://git.reviewboard.kde.org/r/123783/
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Review request for kwin, Plasma, Kai Uwe Broulik, David Edmundson, Martin Gräßlin, Marco Martin, Sebastian Kügler, and Thomas Pfeiffer.


Bugs: 346837, 346933 and 347212
    https://bugs.kde.org/show_bug.cgi?id=346837
    https://bugs.kde.org/show_bug.cgi?id=346933
    https://bugs.kde.org/show_bug.cgi?id=347212


Repository: kwin


Description
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Errhemmmm... while we're waiting for final comments of the HIG group ;-)
Here's a patch that *mostly* restores the 5.2 behavior

Notable differences:

1) The minimizability of windows is ignored. It's a cornercase, but the former behavior was a side-effect of the implementation. (At least I don't know a reason to keep them)

2) The state is broken with the *activation* of windows, not them becoming visible. Latter doesn't work for most cases (unminimizing) for obvious reasons (they're not minimized ;-) and when a new window is mapped, the focus stealing prevention seems a good filter (if it's not good enough to gain the focus, it's not good enough to break the state either ;-)

3) Keep above windows remain visible and do not break the state (as if they'd belong to the desktop) for a request by the HIG group. I'm frankly not sure about the background of this behavior (hopefully not krunner - that doesn't work)

4) Windows in the desktop group initially remain above the desktop and can be activated w/ breaking the state, but can also hide behind the desktop (notably when that is clicked/activated)


Diffs
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  activation.cpp fe0a51f 
  client.h 40d503c 
  client.cpp a6fbf3e 
  layers.cpp b6d5b75 
  manage.cpp 75af4e5 
  workspace.cpp 09ae9a2 

Diff: https://git.reviewboard.kde.org/r/123783/diff/


Testing
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Thanks,

Thomas Lübking

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