Review Request 129712: Properly disable create_dir action

[Elvis Angelaccio]

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https://git.reviewboard.kde.org/r/129712/
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Review request for Dolphin and Emmanuel Pescosta.


Repository: dolphin


Description
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`isFolderWritable` is set in DolphinView::updateWritableState according to KFileItemListProperties::supportsWriting(). However, `writing=true` does not imply `makedir=true`, in an ioslave's .protocol file. An example is the trash protocol.

So we need to enable the create_dir action only if the protocol is actually able to create folders.

CCBUG: 332463


Diffs
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  src/views/dolphinviewactionhandler.cpp 858f9299b 

Diff: https://git.reviewboard.kde.org/r/129712/diff/


Testing
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Go to Trash and press F10 with and without patch.

Note that the create_dir action is already disabled by KIO (you can check by showing the menubar and opening File -> Create New menu), yet it was still listening for shortcuts on the Dolphin side.


Thanks,

Elvis Angelaccio

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