[dolphin] [Bug 446142] New: Display issue on Places category names when go up the Places list using keyboard (UP key).

[Antemyste]

https://bugs.kde.org/show_bug.cgi?id=446142

            Bug ID: 446142
           Summary: Display issue on Places category names when go up the
                    Places list using keyboard (UP key).
           Product: dolphin
           Version: 21.08.3
          Platform: Manjaro
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: panels: places
          Assignee: dolphin-bugs-null at kde.org
          Reporter: mathieu.laboureau at hotmail.fr
                CC: kfm-devel at kde.org
  Target Milestone: ---

Created attachment 143988
  --> https://bugs.kde.org/attachment.cgi?id=143988&action=edit
screen recording

SUMMARY:

Display issue on Places category names when go up the Places list using
keyboard (UP key).
And you CAN'T either go full top of the list, the scrollbar (and list itself)
are stuck few pixel BEFORE reaching the top)

STEPS TO REPRODUCE
1. open dolphin
2.  Put focus on the Places panel (double click one item of the list in the
places panel, scroll bar must be highlighted)
3.  Go down the list until one Places category name get masked because up in
the list
4.  Go UP the list using ONLY keyboard (UP arrow key), one by one item, until
the Places category name get unmasked

OBSERVED RESULT

Watch Demo.gif

The category name and first item of the category get "merged" (see A in
screenshoot '1 Using up key BAD.jpg')
Notice that you CAN'T either go full top of the list (see B in screenshoot '1
Using up key BAD.jpg' ), the scrollbar is stuck BEFORE reaching the top).

No problem when using the scroll bar or the mouse wheel ( see C and D in
screenshoot '2 Using Scrollbar OK.jpg' )

It seems to me that the problem only appears when going up the list, and only
by using the up arrow key, it might be necessary to check if it also occurs
when using a touch screen.

EXPECTED RESULT
No "merged" category name and item, top of the list reached, same for the
scrollbar

See Screenshoot  "2 Using Scrollbar OK.jpg"

SOFTWARE/OS VERSIONS:

Operating System: Manjaro Linux
KDE Plasma Version: 5.23.3
KDE Frameworks Version: 5.88.0
Qt Version: 5.15.2
Graphics Platform: X11

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