Review Request: Fix exporting to non-native formats on Windows, e.g. HTML

C. Boemann cbr at boemann.dk
Mon Nov 19 19:39:55 GMT 2012


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Looks good to me, but I cannot test it on windows

- C. Boemann


On Nov. 19, 2012, 7:20 p.m., Friedrich W. H. Kossebau wrote:
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> (Updated Nov. 19, 2012, 7:20 p.m.)
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> 
> Review request for Calligra, Boudewijn Rempt and C. Boemann.
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> Description
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> Currently exporting to non-native formats (File/Export...) fails on Windows, because the temporary files are empty on disk.
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>     The fix follows approach of bf47fed5ead06f2128abf042897f86bab39cf333 ,
>     by destructing the KTemporaryFile object used to get a unique temporary
>     file name right after its creation again, to avoid having two file handlers
>     on the same file, which seems somehow to prevent synching the bytes written
>     by the filter, which ATM opens its own new file handler, by the name of
>     the temporary file (as KoFilterChain can be only queried for filenames,
>     KoDocuments or KoStores).
>     
>     Real fix might be to use the KTemporaryFile objects also by the filters,
>     instead of having them open the same file on their own again.
>     Another fix might be to find out which flags have to be used in Windows on
>     opening the files, to prevent this behaviour (unless these details are hidden
>     away by the Qt abstraction).
>     
>     Also fixes a possible crash on Windows in KoFilterChain::outputFileHelper(...):
>     m_outputTempFile was accessed even when it might be set to 0 a few lines before
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> 
> Diffs
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>   libs/main/KoFilterChain.cpp b952588 
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> Diff: http://git.reviewboard.kde.org/r/107388/diff/
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> Testing
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> Run a build with this patch and exported a few files from Calligra Words to HTML, no longer empty output.
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> 
> Thanks,
> 
> Friedrich W. H. Kossebau
> 
>

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