/**
* Return an instance of this class.
*
* @since 1.0.0
*
* @return object A single instance of this class.
*/
public static function get_instance()
{
global $wp_rich_edit, $is_gecko, $is_opera, $is_safari, $is_chrome, $is_IE, $is_edge;
if (!isset($wp_rich_edit)) {
$wp_rich_edit = false;
if ('true' == @get_user_option('rich_editing') || !@is_user_logged_in()) {
// default to 'true' for logged out users
if ($is_safari) {
$wp_rich_edit = !wp_is_mobile() || preg_match('!AppleWebKit/(\\d+)!', $_SERVER['HTTP_USER_AGENT'], $match) && intval($match[1]) >= 534;
} elseif ($is_gecko || $is_chrome || $is_IE || $is_edge || $is_opera && !wp_is_mobile()) {
$wp_rich_edit = true;
}
}
}
if ($wp_rich_edit) {
// If the single instance hasn't been set, set it now.
if (null == self::$instance) {
self::$instance = new self();
}
} else {
add_action('edit_form_after_title', 'add_notice_of_disabled_rich_editor');
}
return self::$instance;
}
/**
* Return an instance of this class.
*
* @since 1.0.0
*
* @return object A single instance of this class.
*/
public static function get_instance()
{
if (@user_can_richedit()) {
// If the single instance hasn't been set, set it now.
if (null == self::$instance) {
self::$instance = new self();
}
} else {
add_action('edit_form_after_title', 'add_notice_of_disabled_rich_editor');
}
return self::$instance;
}
/**
* Return an instance of this class.
*
* @since 1.0.0
*
* @return object A single instance of this class.
*/
public static function get_instance()
{
// If the single instance hasn't been set, set it now.
if (null == self::$instance) {
self::$instance = new self();
}
return self::$instance;
}
