createStep API

Extends createSingle with bounded or circular navigation. Built for wizards, multi-step forms, and onboarding flows.

Explore these related pages for additional context and usage patterns.

Page	Category
createStep	Selection
createSingle	Selection
Step	Providers

Creates a new step instance with navigation through items. Extends createSingle with first(), last(), next(), prev(), and step(count) methods for sequential navigation. Supports both circular (wrapping) and bounded (stopping at edges) modes.

createStepContext

(_options?: StepContextOptions) => ContextTrinity<R>

Creates a new step context.

useStep

(namespace?: string) => R

Returns the current step instance.

Options

events

boolean | undefined

Enable event emission for registry operations

Default: false

reactive

boolean | undefined

Enable reactive behavior for registry operations

Default: false

disabled

MaybeRefOrGetter<boolean> | undefined

Disabled state for the entire model instance

Default: false

enroll

MaybeRefOrGetter<boolean> | undefined

Auto-select tickets on registration

Default: true

multiple

MaybeRefOrGetter<boolean> | undefined

Allow multiple tickets to be selected simultaneously

Default: false

mandatory

MaybeRefOrGetter<boolean | "force"> | undefined

Controls mandatory selection behavior: - false (default): No mandatory selection enforcement - true: Prevents deselecting the last selected item - 'force': Automatically selects the first non-disabled item on registration

circular

boolean | undefined

Enable circular navigation (wrapping at boundaries). - true: Navigation wraps around (carousel behavior) - false: Navigation stops at boundaries (pagination behavior)

Default: false

Properties

collection

ReadonlyMap<ID, E>

The collection of tickets in the registry

size

number

The number of tickets in the registry

selectedIds

Reactive<Set<ID>>

Set of currently selected ticket IDs

selectedItems

ComputedRef<Set<E>>

Computed Set of selected ticket instances

selectedValues

ComputedRef<Set<E["value"] extends Ref<infer U, infer U> ? U : E["value"]>>

Computed Set of selected ticket values

disabled

MaybeRefOrGetter<boolean>

Disabled state for the entire model instance

multiple

MaybeRefOrGetter<boolean>

Whether the selection allows multiple selections

selectedId

Readonly<Ref<ID | undefined, ID | undefined>>

selectedIndex

Readonly<Ref<number, number>>

selectedItem

Readonly<Ref<E | undefined, E | undefined>>

selectedValue

Readonly<Ref<E["value"] | undefined, E["value"] | undefined>>

Methods

clear

() => void

Clear the entire registry

has

(id: ID) => boolean

Check if a ticket exists by ID

keys

() => readonly ID[]

Get all registered IDs

browse

(value: E["value"]) => readonly ID[] | undefined

Browse for an ID(s) by value

lookup

(index: number) => ID | undefined

Lookup a ticket by index number

get

(id: ID) => E | undefined

Get a ticket by ID

upsert

(id: ID, ticket?: Partial<Z>, event?: string) => E

Update or insert a ticket by ID

values

() => readonly E[]

Get all values of registered tickets

entries

() => readonly [ID, E][]

Get all entries of registered tickets

unregister

(id: ID) => void

Unregister a ticket by ID

reindex

() => void

Reset the index directory and update all tickets

move

(id: ID, toIndex: number) => E | undefined

Move a ticket to a new index position

reorder

(ids: ID[]) => void

Reorder the registry to match a canonical permutation of ids in one pass.

seek

(direction?: "first" | "last", from?: number, predicate?: (ticket) => boolean) => E | undefined

Seek for a ticket based on direction and optional predicate

on

<K extends Extensible<RegistryEventName>>(event: K, cb: RegistryEventCallback<E, K>) => void

Listen for registry events

off

<K extends Extensible<RegistryEventName>>(event: K, cb: RegistryEventCallback<E, K>) => void

Stop listening for registry events

emit

<K extends Extensible<RegistryEventName>>(event: K, data: EventPayload<E, K>) => void

Emit an event with data

dispose

() => void

Clears the registry and removes all listeners

offboard

(ids: ID[]) => Partial<Z>[]

Offboard multiple tickets at once, returning the input shapes that were removed.

batch

<R>(fn: () => R) => R

Execute operations in a batch, deferring cache invalidation and event emission until complete

reset

() => void

Reset selection state without destroying the registry

select

(id: ID) => void

Select a ticket by ID

unselect

(id: ID) => void

Unselect a ticket by ID

toggle

(id: ID) => void

Toggle a ticket's selection state

selected

(id: ID) => boolean

Check if a ticket is currently selected

apply

(values: unknown[], options?: { multiple?) => void

Apply external values to the model

mandate

() => void

Mandate selected ID based on "mandatory" option

first

() => void

Select the first Ticket in the collection

last

() => void

Select the last Ticket in the collection

() => void

Select the next Ticket based on current index

() => void

Select the previous Ticket based on current index