makeup-roving-tabindex

Implements a roving tab index on given collection of elements

Experimental

This module is still in an experimental state, until it reaches v1 you must consider all minor releases as breaking changes.

Example

import * as RovingTabindex from 'makeup-roving-tabindex';

// get an element reference
const widgetEl = document.querySelector('.widget');

// create a roving tabindex instance on the element
const rovingTabindex = RovingTabindex.createLinear(widgetEl, 'li');

// listen for events (optional)
widgetEl.addEventListener('rovingTabindexChange', function(e) {
    // console.log(e.detail);
})

Markup before:

<div class="widget">
    <ul>
        <li>Item 1</li>
        <li>Item 2</li>
        <li>Item 3</li>
    </ul>
</div>

Markup after:

<div class="widget">
    <ul>
        <li data-makeup-index="0" tabindex="0">Item 1</li>
        <li data-makeup-index="1" tabindex="-1">Item 2</li>
        <li data-makeup-index="2" tabindex="-1">Item 3</li>
    </ul>
</div>

Options

• autoReset: the index position that should receive the roving tabindex when model is reset (default: null)
• index: the initial index position of the roving tabindex (default: 0)
• wrap : specify whether arrow keys should wrap/loop (default: false)
• axis : specify 'x' for left/right arrow keys, 'y' for up/down arrow keys, or 'both' (default: 'both')

Properties

• filteredItems: returns filtered items (e.g. non-hidden items)
• index: the index position of the roving tabindex (i.e. the element with tabindex="0")
• items: returns all items that match item selector

Methods

• reset: will force a reset to the value specified by autoReset
• destroy: destroys all event listeners

Custom Events

• rovingTabindexChange
  • detail
    • fromIndex
    • toIndex