Review Request 110333: Fix cross-process Drag&Drop in KoDocumentSectionView

[Boudewijn Rempt]

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Ship it!


Parts of it are getting a bit convoluted, and we'll need to think about cleaning up a bit, but apart from that, ship it.


krita/plugins/extensions/dockers/defaultdockers/kis_layer_box.cpp
<http://git.reviewboard.kde.org/r/110333/#comment23959>

    Note for the future: a dynamic cast and a static cast here -- we really need to think about a better design for this!


- Boudewijn Rempt


On May 6, 2013, 4:30 p.m., Dmitry Kazakov wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> http://git.reviewboard.kde.org/r/110333/
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> (Updated May 6, 2013, 4:30 p.m.)
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> 
> Review request for Calligra.
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> Description
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> It happens so, that when the cross-process Drag is dropped to the KoDocumentSectionView, some spurious MouseMove event come and start another Drag (effectively, cancelling the current one). I guess, that happens due to some weird order of setting up of event filters (in QWidget and in QDragManager), so that the QWidget's filter gets the MouseMove events before the QDragManager's one. Actually, QWidget should not get any MouseMove events during Dragiing. It should get DragMoveEvents instead.
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> This patch workarounds this problem (i guess, Qt is the cause) and drops all the MouseMove events when they come while the Dragging operation. I activate the workaround on X11 only, because, most probably, Qt's D&D works differently on Windows.
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> This patch fixed bug:
> https://bugs.kde.org/show_bug.cgi?id=319334
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> Diffs
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>   krita/plugins/extensions/dockers/defaultdockers/kis_layer_box.cpp 12689ed 
>   krita/ui/kis_mimedata.h 7055043 
>   krita/ui/kis_mimedata.cpp 64af6b3 
>   krita/ui/kis_node_model.h c1854a0 
>   krita/ui/kis_node_model.cpp 3a21127 
>   krita/ui/kis_view2.cpp 7d4c6da 
>   krita/ui/tests/kis_model_index_converter_test.cpp 80a3117 
>   krita/ui/tests/kis_node_model_test.cpp 1c9bb21 
>   libs/main/KoDocumentSectionView.h 7a535cb 
>   libs/main/KoDocumentSectionView.cpp 768c671 
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> Diff: http://git.reviewboard.kde.org/r/110333/diff/
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> Testing
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> Tested vastly on the Layer Box in Krita.
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> Thanks,
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> Dmitry Kazakov
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>

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