File: /storage/v12674/airalleportuguese/enfold/framework/php/class-accessibility.php
<?php
namespace aviaFramework;
/**
* Helper class that implements fuctions to support accessibilty
*
* @author guenter
* @since 6.0
*/
if( ! defined( 'ABSPATH' ) ) { exit; }
if( ! class_exists( __NAMESPACE__ . '\accessibility', false ) )
{
class accessibility
{
/**
* Holds the instance of this class
*
* @since 6.0
* @var aviaFramework\accessibility
*/
static private $_instance = null;
/**
* Return the instance of this class
*
* @since 6.0
* @return aviaFramework\accessibility
*/
static public function instance()
{
if( is_null( accessibility::$_instance ) )
{
accessibility::$_instance = new accessibility();
}
return accessibility::$_instance;
}
/**
* @since 6.0
*/
protected function __construct()
{
}
/**
* Returns markup for screenreader to ignore heading when empty
*
* @link https://kriesi.at/support/topic/accessibility-compliance-of-forms-and-tab-elements-in-the-enfold-theme/#post-1443669
* @since 6.0
* @param string $content
* @param string $heading_tag
* @param string $quote
* @return string
*/
public function heading_markup( $content, $heading_tag, $quote = '"' )
{
if( ! empty( $content ) )
{
return '';
}
if( ! in_array( $heading_tag, [ 'h1', 'h2', 'h3', 'h4', 'h5', 'h6' ] ) )
{
return '';
}
if( ! in_array( $quote, [ '"', "'" ] ) )
{
$quote = '"';
}
return $quote == '"' ? 'aria-hidden="true" tabindex="-1"' : "aria-hidden='true' tabindex='-1'";
}
}
/**
* Returns the main instance of aviaFramework\accessibility to prevent the need to use globals
*
* @since 6.0
* @return aviaFramework\accessibility
*/
function Accessibility()
{
return accessibility::instance();
}
}