useRovingFocus
Keyboard navigation for composite widgets where arrow keys move focus between items, skipping disabled ones.
Usage
useRovingFocus manages focus across a group of items — only the active item has tabindex="0", all others have tabindex="-1". Arrow keys move focus between items, automatically skipping disabled ones. Supports linear (horizontal/vertical) and grid (2D) navigation modes.
<script setup lang="ts">
import { useRovingFocus } from '@vuetify/v0'
import { useTemplateRef } from 'vue'
const toolbar = useTemplateRef('toolbar')
const items = [
{ id: 'bold', label: 'Bold' },
{ id: 'italic', label: 'Italic' },
{ id: 'underline', label: 'Underline', disabled: true },
{ id: 'strike', label: 'Strikethrough' },
]
const { focusedId, isTabbable } = useRovingFocus(
() => items.map(item => ({
id: item.id,
el: () => toolbar.value?.querySelector(`[data-id="${item.id}"]`),
disabled: item.disabled,
})),
{ target: toolbar, orientation: 'horizontal' },
)
</script>
<template>
<div ref="toolbar" role="toolbar" aria-label="Formatting">
<button
v-for="item in items"
:key="item.id"
:data-id="item.id"
:tabindex="isTabbable(item.id) ? 0 : -1"
:disabled="item.disabled"
>
{{ item.label }}
</button>
</div>
</template>useRovingFocus vs useVirtualFocus
Both manage keyboard navigation, but they use different focus strategies:
useRovingFocus | useVirtualFocus | |
|---|---|---|
| DOM focus | Moves to each item | Stays on the control (e.g., <input>) |
| tabindex | Managed per item | Not used |
| ARIA | Items receive focus directly | aria-activedescendant on control |
| Use for | Toolbars, menus, grids, tabs | Comboboxes, autocompletes, searchable selects |
| Keyboard pattern | Items are real focusable elements | Items are virtual — only one DOM node has focus |
Choose useRovingFocus when items are real interactive elements (buttons, links). Choose useVirtualFocus when a single input drives a list of options that aren’t individually focusable.
Architecture
useRovingFocus builds on useEventListener for keydown handling. It is a standalone composable — not part of the registry/selection hierarchy — making it composable alongside createSingle or createSelection for widgets that separate focus from selection (e.g., listboxes, selects).
Reactivity
| Property/Method | Reactive | Notes |
|---|---|---|
focusedId | ShallowRef, tracks currently focused item | |
isTabbable(id) | - | Returns true for the one item that should have tabindex="0" |
focus(id) | - | Programmatically focus an item by ID |
next() | - | Move focus to next enabled item |
prev() | - | Move focus to previous enabled item |
first() | - | Move focus to first enabled item |
last() | - | Move focus to last enabled item |
onKeydown | - | Keydown handler — auto-bound when target is provided |