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- <?php
- namespace Drupal\Core\Render\Element;
- use Drupal\Component\Plugin\PluginInspectionInterface;
- /**
- * Provides an interface for render element plugins.
- *
- * Render element plugins allow modules to declare their own Render API element
- * types and specify the default values for the properties. The values returned
- * by the getInfo() method of the element plugin will be merged with the
- * properties specified in render arrays. Thus, you can specify defaults for any
- * Render API keys, in addition to those explicitly documented by
- * \Drupal\Core\Render\ElementInfoManagerInterface::getInfo().
- *
- * Some render elements are specifically form input elements; see
- * \Drupal\Core\Render\Element\FormElementInterface for more information.
- *
- * @see \Drupal\Core\Render\ElementInfoManager
- * @see \Drupal\Core\Render\Annotation\RenderElement
- * @see \Drupal\Core\Render\Element\RenderElement
- * @see plugin_api
- *
- * @ingroup theme_render
- */
- interface ElementInterface extends PluginInspectionInterface {
- /**
- * Returns the element properties for this element.
- *
- * @return array
- * An array of element properties. See
- * \Drupal\Core\Render\ElementInfoManagerInterface::getInfo() for
- * documentation of the standard properties of all elements, and the
- * return value format.
- */
- public function getInfo();
- /**
- * Sets a form element's class attribute.
- *
- * Adds 'required' and 'error' classes as needed.
- *
- * @param array $element
- * The form element.
- * @param array $class
- * Array of new class names to be added.
- */
- public static function setAttributes(&$element, $class = []);
- }
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