Review Request 112561: Ensure that the items are sorted correctly when the refreshItems() signal is received

[Commit Hook]

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This review has been submitted with commit be391bdac1901ef6a959c9d4e795b76be9c2b49d by Frank Reininghaus to branch KDE/4.11.

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On Sept. 6, 2013, 3:29 p.m., Frank Reininghaus wrote:
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> http://git.reviewboard.kde.org/r/112561/
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> (Updated Sept. 6, 2013, 3:29 p.m.)
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> 
> Review request for Dolphin.
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> Description
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> A side-effect of https://git.reviewboard.kde.org/r/111146/ is that the model is sometimes not sorted correctly after a refreshItems() signal has been received:
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> 1. mkdir test && cd test && touch a b c && dolphin .
> 2. Sort by size -> the order of the items is "a b c" because the name is used as a fallback (all files have zero size).
> 3. Rename "a" -> "d", either using non-inline renaming or in another view (such that the model receives the refreshItems() signal).
> 4. Note that the items are not resorted.
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> This patch fixes the problem. I've factored out some code that was added in https://git.reviewboard.kde.org/r/111721/ to a new function, such that both setData() and slotRefreshItems() can make use of it.
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> I added a unit test for the bug and another one for the grouping problem that Emmanuel found in the first version of https://git.reviewboard.kde.org/r/111721/
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> Diffs
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>   dolphin/src/kitemviews/kfileitemmodel.h 5917e68 
>   dolphin/src/kitemviews/kfileitemmodel.cpp 7bbc1d1 
>   dolphin/src/tests/kfileitemmodeltest.cpp f843978 
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> Diff: http://git.reviewboard.kde.org/r/112561/diff/
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> Testing
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> Works. Old and new unit tests pass.
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> Thanks,
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> Frank Reininghaus
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