[okular] [Bug 422041] New: Add scroll animation on arrow keys

[Orestis]

https://bugs.kde.org/show_bug.cgi?id=422041

            Bug ID: 422041
           Summary: Add scroll animation on arrow keys
           Product: okular
           Version: 1.10.1
          Platform: Archlinux Packages
                OS: Linux
            Status: REPORTED
          Severity: wishlist
          Priority: NOR
         Component: general
          Assignee: okular-devel at kde.org
          Reporter: orestis.kapar at hotmail.com
  Target Milestone: ---

SUMMARY
The benefits of scroll animation are clear; it is easier for the eye to track
the movement so that it does not get lost after an instant scroll.

Okular supports scroll animation with Page Up and Page Down keys. However, when
using the Up and Down Arrow keys (or j/k for that matter) the animation is
still instant forcing on the reader the mini-task of tracking the position.


STEPS TO REPRODUCE
1. Open a (pdf) document.
2. Press Page Down.
3. Press Page Up.
4. Press Arrow Down (or j).
5. Press Arrow Up (or k).

OBSERVED RESULT
There is a scroll animation when using Page Up/Down buttons. There is no scroll
animation when using Up/Down Arrow buttons (or j/k).

EXPECTED RESULT
There is a scroll animation for any vertical or horizontal movement on the
document.


SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 5.6.13-arch1-1
(available in About System)
KDE Plasma Version: 5.18.5
KDE Frameworks Version: 5.70.0
Qt Version: 5.14.2

ADDITIONAL INFORMATION

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