[dolphin] [Bug 423884] New: Type-ahead in details view mode should scroll the current result to the center of the list

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=423884

            Bug ID: 423884
           Summary: Type-ahead in details view mode should scroll the
                    current result to the center of the list
           Product: dolphin
           Version: 20.04.2
          Platform: Debian testing
                OS: Linux
            Status: REPORTED
          Severity: wishlist
          Priority: NOR
         Component: search
          Assignee: dolphin-bugs-null at kde.org
          Reporter: jbn at forestfield.org
                CC: kfm-devel at kde.org
  Target Milestone: ---

SUMMARY
When using type-ahead to search for a filesystem object in Dolphin in details
view mode, the found object is selected and shown at the bottom of the list.
Instead I think Dolphin should put the found object in the middle of the list
whenever possible.

STEPS TO REPRODUCE
1. Enter a folder with a lot of files or folders in it (well over 200) and set
the Dolphin window to use details mode and make the Dolphin window tall enough
to use but not show more than, say, 20 of the items in the folder.
2. Type characters quickly enough to make Dolphin locate an item midway down
the list. The item you match should have lots of items below it so the
scrollbar is not hitting the bottom of the scrollable range.
3. Dolphin scrolls the view down to show that it has selected the first match
for whatever you typed.

OBSERVED RESULT
This, now selected, item is positioned at the bottom of the visible portion of
the list.

EXPECTED RESULT
This, now selected, item should be positioned at the middle of the visible
portion of the list because it is possible to do so and shows the user some
items on either side of the selected item.

SOFTWARE/OS VERSIONS
Operating System: Debian GNU/Linux 
KDE Plasma Version: 5.17.5
KDE Frameworks Version: 5.70.0
Qt Version: 5.14.2
Kernel Version: 5.7.0-1-amd64
OS Type: 64-bit
Processors: 8 × AMD FX(tm)-8150 Eight-Core Processor
Memory: 31.3 GiB of RAM

ADDITIONAL INFORMATION
I think the selection should be in the middle because:
1. I find it easier to notice what is selected when that item is in the middle
of the list (whenever possible, obviously selecting something on the last page
of the list will render this impossible to do).
2. I might want to select a directory and uncollapse that directory. It would
be nicer to give me room to see what's in the directory while (again, to the
extent possible) show me the directory too.

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