Review Request 117757: Improve Kickoff's scrolling when changing categories

[Martin Klapetek]

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https://git.reviewboard.kde.org/r/117757/
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Review request for Plasma.


Repository: plasma-desktop


Description
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Use case: I'm in All Applications, I scroll down, select Utilities, category switches inside Utilities and the scrollbar is at the same bottom position from my first scroll, which means that I see the apps in Utilities that are at the bottom instead starting from the top.

These are two changes: always scroll the view to top when going into a subcategory and then always center on the parent category when going level up. The breadcrumbs however store QModelIndex (which makes sense) and QModelIndex cannot be used from QML, so I added a helper method to the model that returns a row of the given index and the view then centers on that row when going category up. Might not be good at all but imho works&looks better.


Diffs
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  applets/kickoff/core/applicationmodel.h a039773 
  applets/kickoff/core/applicationmodel.cpp 3a5f0bb 
  applets/kickoff/package/contents/ui/ApplicationsView.qml 09b7618 

Diff: https://git.reviewboard.kde.org/r/117757/diff/


Testing
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Thanks,

Martin Klapetek

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