Review Request 124670: Scrolling fixes for Dolphin

[Maxim Mikityanskiy]

> On Авг. 25, 2015, 8:16 п.п., Emmanuel Pescosta wrote:
> > Thanks, looks good! :) (and sorry for the late reply)
> > 
> > Do you have a commit access?

No, I don't have commit access. Please merge it for me.


- Maxim


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On Авг. 9, 2015, 9:52 д.п., Maxim Mikityanskiy wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/124670/
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> 
> (Updated Авг. 9, 2015, 9:52 д.п.)
> 
> 
> Review request for Dolphin.
> 
> 
> Repository: dolphin
> 
> 
> Description
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> 
> KItemListSmoothScroller::handleWheelEvent has some issues.
> 
> At first, when I scroll file list holding mouse over the list, one mouse wheel tick corresponds to 1/4 page interval, but when I hover on QScrollBar, one wheel tick corresponds to 1 page interval.
> 
> At second, in KItemListSmoothScroller::eventFilter we don't return true, so that QScrollBar also handles this event, and total scroll interval is m_scrollBar->pageStep() + m_scrollBar->singleStep().
> 
> At third, when I use touchpad that supports smooth scrolling via XInput2, and I hover it over QScrollBar, I can only scroll content if I move my fingers very fast, because numSteps = event->delta() / 8 / 15 is just zero unless I move very fast (event->delta() in this case is less than 120).
> 
> At fourth, holding Shift while scrolling has no effect when holding mouse over QScrollBar in contrast to scrolling faster when holding mouse over file list.
> 
> The patch eliminates all these issues making the behavior of KItemListSmoothScroller the same as in KItemListContainer::wheelEvent, adding support for QWheelEvent::pixelDelta() and removing usage of deprecated QWheelEvent::delta().
> 
> 
> Diffs
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> 
>   src/kitemviews/private/kitemlistsmoothscroller.cpp e70f478 
> 
> Diff: https://git.reviewboard.kde.org/r/124670/diff/
> 
> 
> Testing
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> 
> 
> Thanks,
> 
> Maxim Mikityanskiy
> 
>

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