WRQ-9536: Fix scrolling by wheel to scroll smoothly

[vJIYEv]

Checklist

• [x] 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
• [x] 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 default delta is 0 now in native wheel handler. So I set default delta value to show animation. Default delta value is came from calculated delta of the case when event target is out of scroll content.

Additional Considerations

Links

WRQ-9536

Comments

Enact-DCO-1.0-Signed-off-by: Jiye Kim ([email protected])