true,
self::CONTENT_ROLE => true,
];
/**
* Indicates how the section should be rendered in the UI.
*
* Note that this is a preference, not a strict requirement. A renderer may choose
* to ignore this setting and display the section in a different way.
*
* @var string
*/
protected $preferredRole = self::NAVIGATION_ROLE;
public function __construct($title, $children = [], $params = []) {
parent::__construct($title, $children, $params);
if ( isset($params['preferredRole']) ) {
if ( !array_key_exists($params['preferredRole'], self::VALID_ROLES) ) {
throw new \InvalidArgumentException('Invalid preferred role.');
}
$this->preferredRole = $params['preferredRole'];
}
}
protected function getJsUiElementType() {
return 'section';
}
public function serializeForJs() {
$result = parent::serializeForJs();
if ( $this->preferredRole !== self::NAVIGATION_ROLE ) {
$result['preferredRole'] = $this->preferredRole;
}
return $result;
}
}