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ARIA Query

Programmatic access to the WAI-ARIA 1.2 Roles Model. This package tracks the W3C Recommendation (last update: 6 June 2023).

CDN URL: https://unpkg.com/aria-query

Building the `src/etc` files

The files under src/etc are generated by the breakUpAriaJSON script.

To change them, edit the file scripts/roles.json then run:

node ./scripts/breakUpAriaJSON.js
git add scripts/roles.json src/etc

It should work with Node version 6.11.2 or later.

Utilities

Interface

These methods are available on each export from the module. The typing here in the documentation is pseudo-typed. Each export will have its own specific types for each method signature.

{|
  entries: () => Array<$Item>,
  get: (key: $Key) => ?$Value,
  has: (key: $Key) => boolean,
  keys: () => Array<$Key>,
  values: () => Array<$Value>,
|};

Roles

import { roles } from 'aria-query';

A map of role names to the role definition. For example:

let alertRole = roles.get('alert');
/**
 * Value of alertRole
 * {
 *   "requiredProps": {},
 *   "props": {
 *     "aria-atomic": "true",
 *     "aria-busy": null,
 *     "aria-controls": null,
 *     "aria-current": null,
 *     "aria-describedby": null,
 *     "aria-details": null,
 *     "aria-disabled": null,
 *     "aria-dropeffect": null,
 *     "aria-errormessage": null,
 *     "aria-expanded": null,
 *     "aria-flowto": null,
 *     "aria-grabbed": null,
 *     "aria-haspopup": null,
 *     "aria-hidden": null,
 *     "aria-invalid": null,
 *     "aria-keyshortcuts": null,
 *     "aria-label": null,
 *     "aria-labelledby": null,
 *     "aria-live": "assertive",
 *     "aria-owns": null,
 *     "aria-relevant": null,
 *     "aria-roledescription": null
 *   },
 *   "abstract": false,
 *   "childrenPresentational": false,
 *   "baseConcepts": [],
 *   "relatedConcepts": [ {
 *     "module": "XForms",
 *     "concept": {
 *       "name": "alert"
 *     }
 *   }],
 *   "superClass": [["roletype", "structure", "section"]]
 * }

Elements to Roles

import { elementRoles } from 'aria-query';

HTML Elements with inherent roles are mapped to those roles. In the case of an element like <input>, the element often requires a type attribute to map to an ARIA role.

[
  [ '{"name": "article"}', [ 'article' ] ],
  [ '{"name": "button"}', [ 'button' ] ],
  [ '{"name": "td"}', [ 'cell', 'gridcell' ] ],
  [ '{"name": "input", "attributes": [ {"name": "type", "value": "checkbox"}] }', [ 'checkbox' ] ],
  [ '{"name": "th"}', [ 'columnheader' ] ],
  [ '{"name": "select"}', [ 'combobox', 'listbox' ] ],
  [ '{"name": "menuitem"}', [ 'command', 'menuitem' ] ],
  [ '{"name": "dd"}', [ 'definition' ] ],
  [ '{"name": "figure"}', [ 'figure' ] ],
  [ '{"name": "form"}', [ 'form' ] ],
  [ '{"name": "table"}', [ 'grid', 'table' ] ],
  [ '{"name": "fieldset"}', [ 'group' ] ],
  [ '{"name": "h1"}', [ 'heading' ] ],
  [ '{"name": "h2"}', [ 'heading' ] ],
  [ '{"name": "h3"}', [ 'heading' ] ],
  [ '{"name": "h4"}', [ 'heading' ] ],
  [ '{"name": "h5"}', [ 'heading' ] ],
  [ '{"name": "h6"}', [ 'heading' ] ],
  [ '{"name": "img"}', [ 'img' ] ],
  [ '{"name": "a"}', [ 'link' ] ],
  [ '{"name": "link"}', [ 'link' ] ],
  [ '{"name": "ol"}', [ 'list' ] ],
  [ '{"name": "ul"}', [ 'list' ] ],
  [ '{"name": "li"}', [ 'listitem' ] ],
  [ '{"name": "nav"}', [ 'navigation' ] ],
  [ '{"name": "option"}', [ 'option' ] ],
  [ '{"name": "input", "attributes": [ {"name": "type", "value": "radio"}] }', [ 'radio' ] ],
  [ '{"name": "frame"}', [ 'region' ] ],
  [ '{"name": "rel"}', [ 'roletype' ] ],
  [ '{"name": "tr"}', [ 'row' ] ],
  [ '{"name": "tbody"}', [ 'rowgroup' ] ],
  [ '{"name": "tfoot"}', [ 'rowgroup' ] ],
  [ '{"name": "thead"}', [ 'rowgroup' ] ],
  [ '{"name": "th", "attributes": [ {"name": "scope", "value": "row"}] }', [ 'rowheader' ] ],
  [ '{"name": "input", "attributes": [ {"name": "type", "value": "search"}] }', [ 'searchbox' ] ],
  [ '{"name": "hr"}', [ 'separator' ] ],
  [ '{"name": "dt"}', [ 'term' ] ],
  [ '{"name": "dfn"}', [ 'term' ] ],
  [ '{"name": "textarea"}', [ 'textbox' ] ],
  [ '{"name": "input", "attributes": [ {"name": "type", "value": "text"}] }', [ 'textbox' ] ],
]

The map of elements to roles is keyed by an HTML concept. An HTML concept corresponds to the baseConcepts and relatedConcepts of an ARIA role. Concepts exist in the context of a module: HTML, XForms, Dublin Core, for example. The concept representation is an object literal with a name property (the element name) and an optional attributes array.

The roles are provided in a Set.

Role to element

import { roleElements } from 'aria-query';

ARIA roles are mapped to the HTML Elements with the same inherent role. Some roles, such as columnheader are only mapped to an HTML element that expresses specific attributes. In the case of <input>, the element often requires a type attribute to map to an ARIA role.

[
  [ 'article', [ {"name": "article"} ] ],
  [ 'button', [ {"name": "button"} ] ],
  [ 'cell', [ {"name": "td"} ] ],
  [ 'checkbox', [ {"name": "input", "attributes": [ {"name": "type", "value": "checkbox"}] } ] ],
  [ 'columnheader', [ {"name": "th"} ] ],
  [ 'combobox', [ {"name": "select"} ] ],
  [ 'command', [ {"name": "menuitem"} ] ],
  [ 'definition', [ {"name": "dd"}', '{"name": "dfn"} ] ],
  [ 'figure', [ {"name": "figure"} ] ],
  [ 'form', [ {"name": "form"} ] ],
  [ 'grid', [ {"name": "table"} ] ],
  [ 'gridcell', [ {"name": "td"} ] ],
  [ 'group', [ {"name": "fieldset"} ] ],
  [ 'heading', [ {"name": "h1"}', '{"name": "h2"}', '{"name": "h3"}', '{"name": "h4"}',  '{"name": "h5"}', '{"name": "h6"} ] ],
  [ 'img', [ {"name": "img"} ] ],
  [ 'link', [ {"name": "a"}', '{"name": "link"} ] ],
  [ 'list', [ {"name": "ol"}', '{"name": "ul"} ] ],
  [ 'listbox', [ {"name": "select"} ] ],
  [ 'listitem', [ {"name": "li"} ] ],
  [ 'menuitem', [ {"name": "menuitem"} ] ],
  [ 'navigation', [ {"name": "nav"} ] ],
  [ 'option', [ {"name": "option"} ] ],
  [ 'radio', [ {"name": "input", "attributes": [ {"name": "type", "value": "radio"}] } ] ],
  [ 'region', [ {"name": "frame"} ] ],
  [ 'roletype', [ {"name": "rel"} ] ],
  [ 'row', [ {"name": "tr"} ] ],
  [ 'rowgroup', [ {"name": "tbody"}', '{"name": "tfoot"}', '{"name": "thead"} ] ],
  [ 'rowheader', [ {"name": "th", "attributes": [ {"name": "scope", "value": "row"}] }, {"name": "th", "attributes": [ {"name": "scope", "value": "rowgroup"}] } ] ],
  [ 'searchbox', [ {"name": "input", "attributes": [ {"name": "type", "value": "search"}] } ] ],
  [ 'separator', [ {"name": "hr"} ] ],
  [ 'table', [ {"name": "table"} ] ],
  [ 'term', [ {"name": "dt"} ] ],
  [ 'textbox', [ {"name": "textarea"}', '{"name": "input", "attributes": [ {"name": "type", "value": "text"}] } ] ],
]

HTML element	Implicit ARIA semantics (explicitly assigning these in markup is NOT RECOMMENDED)	ARIA role, state and property allowances
hgroup	role=group	Any role, though group SHOULD NOT be used. Otherwise, global aria-* attributes and any aria-* attributes applicable to the allowed roles.
s	role=deletion	Any role, though deletion is NOT RECOMMENDED. Naming Prohibited Otherwise, global aria-* attributes and any aria-* attributes applicable to the allowed roles.
search	role=search	Roles: form, group, none, presentation or region. (search is also allowed, but NOT RECOMMENDED.) Global aria-* attributes and any aria-* attributes applicable to the allowed roles.

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aria-query's Introduction

ARIA Query

Building the src/etc files

Utilities

Interface

Roles

Elements to Roles

Role to element

License

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