Review Request 125589: [Task Manager] Align context menu to task item

[Eike Hein]

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https://git.reviewboard.kde.org/r/125589/#review86650
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Did you test to make sure it doesn't crash if a delegate is destroyed while the menu is open?

- Eike Hein


On Oct. 10, 2015, 5:17 p.m., Kai Uwe Broulik wrote:
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> https://git.reviewboard.kde.org/r/125589/
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> (Updated Oct. 10, 2015, 5:17 p.m.)
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> Review request for Plasma, KDE Usability and Eike Hein.
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> Repository: plasma-desktop
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> Description
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> One thing that always bugged me with the Plasma 5 Task Manager was the context menu covering the task item (I have a top panel) when I, conforming to Fitt's Law, threw my mouse at the edge and right clicked.
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> This also restores Plasma 4 behavior where the context menus din't overlap the panels. I chose to align the context menu with the item itself rather than just the panel, which is what Plasma 4 did, to communicate some affinity to the task item, especially in multi-row task managers.
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> I changed the QMetaObject::invokeMethod to a QTimer::singleShot with lambda, don't know if that's the right approach. Also it's perhaps not optimal for me to copy the QPoint into the lambda.
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> Diffs
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>   applets/taskmanager/plugin/backend.h 2b9d9e9 
>   applets/taskmanager/plugin/backend.cpp 97ed755 
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> Diff: https://git.reviewboard.kde.org/r/125589/diff/
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> Testing
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> Tested with single and multi row task manager in top/bottom/left/right panels. Works. Did not test with multiple monitors.
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> Perhaps some margins need to be taken into account additionally, note the small gap between the indicator line and the menu border
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> File Attachments
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> Outer left two columns
>   https://git.reviewboard.kde.org/media/uploaded/files/2015/10/10/f62b81df-4b0b-4b11-8c66-aa96dc56850a__taskmanageroverlap1.png
> Inner left two columns
>   https://git.reviewboard.kde.org/media/uploaded/files/2015/10/10/7b128305-04e8-4734-82d0-b1853bbc8471__taskmanageroverlap2.png
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> Thanks,
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> Kai Uwe Broulik
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