public static Details::preRenderDetails($element)

public static Url::validateUrl(&$element, FormStateInterface $form_state, &am

Provides a wrapper element to group one or more buttons in a form. Use of a single Actions element with an array key of 'actions' to group the

public static Select::valueCallback(&$element, $input, FormStateInterface

Provides a link to show or hide help text on administration pages. Usage example:

Provides a base class for render element plugins. Render elements are referenced in render arrays; see the

public static MachineName::validateMachineName(&$element, FormStateInterface

public static RenderElement::processAjaxForm(&$element, FormStateInterface

public static Color::preRenderColor($element) Prepares

public static PathElement::validateMatchedPath(&$element, FormStateInterface