RFC 7 · How does drag-and-drop reordering work when list items are columns?

[jihoons0]

Labels: RFC interaction

List reordering assumes a vertical stack of horizontal rows. In a vertical reading interface a list is columns flowing RTL, so the reorder axis is horizontal — and a downward drag can mean something else entirely (in Vertically To-do, pulling a column down deletes it).

Where it shows up here: vertical-list-cell, and the gesture model of Vertically To-do.

Open questions:

• Horizontal drag = reorder, vertical drag = remove: is orthogonal-axis disambiguation the right general rule?
• What are the correct drop-indicator and insertion-point visuals in an RTL column list?
• How should keyboard-driven reordering map onto the same model?

Write-up: https://vertically.works/challenges#drag-reorder
Propose your answer as a PR. Strong answers get merged into the spec.