Bug 446142

Summary: Display issue on Places category names when go up the Places list using keyboard (UP key).
Product: [Frameworks and Libraries] frameworks-kio Reporter: Antemyste <mathieu.laboureau>
Component: PlacesAssignee: KIO Bugs <kio-bugs-null>
Status: RESOLVED FIXED    
Severity: normal CC: kde, kdelibs-bugs, kfm-devel, nate, paninomaninodesu
Priority: NOR    
Version: unspecified   
Target Milestone: ---   
Platform: Manjaro   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: screen recording
Screenshot 1 Using up key BAD
Screenshot 2 Using Scrollbar OK
confirmed and found more

Description Antemyste 2021-11-27 00:02:03 UTC
Created attachment 143988 [details]
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
Comment 1 Antemyste 2021-11-27 00:05:56 UTC
Created attachment 143989 [details]
Screenshot 1 Using up key BAD
Comment 2 Antemyste 2021-11-27 00:07:18 UTC
Created attachment 143990 [details]
Screenshot 2 Using Scrollbar OK
Comment 3 paninomaninodesu 2021-12-01 15:53:50 UTC
Created attachment 144117 [details]
confirmed and found more

I can reproduce and confirm, and while I was testing it I found more.
At the bottom of places there's the category "Dispositivos". It shows the hard disks and other mounted places. The items there are underscored by color lines showing the amount of used space. With the scroll bar appearing, put the mouse about the scroll bar and scroll with the mouse wheel one step up. The colored lines glitch and are transferred to the items at the top of the list. When I decreased the size of the window more the glitch got worse.
If you scroll again the lines disappear.
If you scroll with the mouse about the places area it still happens but the lines vanishes in a blink.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: KDE neon User - Plasma 25th Anniversary Edition x86_64 
(available in About System)
KDE Plasma Version: 5.23.3
KDE Frameworks Version: 5.88.0
Qt Version: 5.15.3
Comment 4 Kai Uwe Broulik 2022-02-02 21:05:29 UTC
I believe this is obsolete now with Dolphin being ported back to KFilePlacesView
Comment 5 Nate Graham 2022-02-02 23:14:14 UTC
Yup, sure is.