WRQ-9536: Fix scrolling by wheel to scroll smoothly

[vJIYEv]

Checklist

• I have read and understand the contribution guide
• A CHANGELOG entry is included
• At least one test case is included for this feature or bug fix
• Documentation was added or is not needed
• This is an API breaking change

Issue Resolved / Feature Added

Scroller and VirtualList should show smooth scrolling by wheel with animation but I found scrolling by wheel shows not smooth like before.

Resolution

In scroll handler function, we have code to scroll smoothly with animation.
It runs when 'delta' value is not 0 but 'delta' is 0 now if a scroller is scrolled by wheel.
So I set 'delta' value as the delta of scroll event to show animation.

Additional Considerations

Links

WRQ-9536

Comments

Enact-DCO-1.0-Signed-off-by: Jiye Kim (jiye.kim@lge.com)

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 81.51%. Comparing base (d2d4a7f) to head (09f7efa).

Files	Patch %	Lines
useScroll/useEvent.js	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #1611   +/-   ##
========================================
  Coverage    81.51%   81.51%           
========================================
  Files          148      148           
  Lines         6631     6631           
  Branches      1957     1957           
========================================
  Hits          5405     5405           
  Misses         933      933           
  Partials       293      293           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.