Review Request 111830: Make determining the mime type faster for directories

[Emmanuel Pescosta]

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Ship it!


Ship It!

- Emmanuel Pescosta


On Aug. 1, 2013, 6:44 a.m., Frank Reininghaus wrote:
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> (Updated Aug. 1, 2013, 6:44 a.m.)
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> Review request for Dolphin and Christoph Feck.
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> Description
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> Christoph noted in https://bugs.kde.org/show_bug.cgi?id=321710#c2 that "Sort by Type" sometimes does not work perfectly even in directories with a rather small number of sub-directories inside. I think that this is because we always call KFileItem::determineMimeType() before getting the type, which also tries to load the .directory files inside the directories to load the icon.
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> We could improve this by not calling KFileItem::determineMimeType() for directories, but assign the type based on what KFileItem::isDir() returns.
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> The "folder" mime type could be cached in a static QString, such that we only have to do the expensive things once for directories before the sorting can begin.
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> Christoph, it would be nice if you could test it!
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> Diffs
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>   dolphin/src/kitemviews/kfileitemmodel.cpp 1b4911d 
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> Diff: http://git.reviewboard.kde.org/r/111830/diff/
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> Testing
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> Seems to work nicely for me.
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> Thanks,
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> Frank Reininghaus
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