WordPress/wp-includes/js/wp-a11y.js

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window.wp = window.wp || {};
( function ( wp, $ ) {
'use strict';
var $container;
/**
* Update the ARIA live notification area text node.
*
* @since 4.2.0
*
* @param {String} message
*/
function speak( message ) {
if ( $container ) {
$container.text( message );
}
}
/**
* Initialize wp.a11y and define ARIA live notification area.
*
* @since 4.2.0
*/
$( document ).ready( function() {
$container = $( '#wp-a11y-speak' );
if ( ! $container.length ) {
$container = $( '<div>', {
id: 'wp-a11y-speak',
role: 'status',
'aria-live': 'polite',
'aria-relevant': 'all',
'aria-atomic': 'true',
'class': 'screen-reader-text'
} );
$( document.body ).append( $container );
}
} );
wp.a11y = wp.a11y || {};
wp.a11y.speak = speak;
} )( window.wp, window.jQuery );