@typed/ui/Tree

Renders a child group and hides it while its parent id is not expanded.

Inputs accepted by Tree.Group in addition to the shared DOM host options.

Removes an id from expandedIds.

Adds an id once to expandedIds.

Tests membership in expandedIds without touching the DOM.

Initial Tree values. activeId defaults null and expandedIds defaults empty.

The focused node and expanded parent identities. Expansion controls visible traversal; file selection or opening is a separate application action.

Effect Schema used by makeState to encode, decode, and hydrate Tree state.

Creates hydrated Tree state. activeId defaults null and expandedIds defaults empty.

Sets the active tree item id without changing expansion.

Tree collection value recording an item’s parent relationship.

Creates a scoped Collection for Tree items.

Renders and optionally registers a treeitem with level, expanded, disabled, and roving-focus state.

Inputs accepted by Tree.Item in addition to the shared DOM host options.

Renders the tree root and applies hierarchy-aware keyboard navigation to registered items.

Inputs accepted by Tree.Root in addition to the shared DOM host options.