NXT-12133: Added stickTo prop for Scroller and VirtualList fo fixed focus position

[daniel-stoian-lgp]

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

There is an Ux requirement to allow fixed focus position on the screen when scrolling

Resolution

Added stickTo prop for Scroller and VirtualList - When set to 'start' and direction is 'horizontal', moving focus with 5-way keys keeps the focus indicator at a fixed slot near the start (left in LTR, right in RTL) edge of the scroller and scrolls the list so the newly focused item lands in that slot. At the end of the list, when the item can no longer reach the fixed slot, the list scrolls only to its last position so the focused item stays visible.

Additional Considerations

Links

NXT-12133

Comments

Enact-DCO-1.0-Signed-off-by: Daniel Stoian (daniel.stoian@lgepartner.com)

[codecov]

Codecov Report

❌ Patch coverage is 90.47619% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 82.48%. Comparing base (8276c61) to head (72e949f).
⚠️ Report is 2 commits behind head on develop.

Files with missing lines	Patch %	Lines
VirtualList/useThemeVirtualList.js	83.33%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #371      +/-   ##
===========================================
+ Coverage    82.06%   82.48%   +0.41%     
===========================================
  Files          153      153              
  Lines         7506     7529      +23     
  Branches      2261     2272      +11     
===========================================
+ Hits          6160     6210      +50     
+ Misses        1041     1026      -15     
+ Partials       305      293      -12     

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