class StatusMessages in Zircon Profile 8

Provides a messages element.

Plugin annotation

@RenderElement("status_messages");

Hierarchy

• class \Drupal\Component\Plugin\PluginBase implements DerivativeInspectionInterface, PluginInspectionInterface
  • class \Drupal\Core\Plugin\PluginBase uses DependencySerializationTrait, StringTranslationTrait
    • class \Drupal\Core\Render\Element\RenderElement implements ElementInterface
      • class \Drupal\Core\Render\Element\StatusMessages

17 #type uses of StatusMessages

AjaxRenderer::renderResponse in core/lib/Drupal/Core/Render/MainContent/AjaxRenderer.php

Renders the main content render array into a response.

BareHtmlPageRenderer::renderBarePage in core/lib/Drupal/Core/Render/BareHtmlPageRenderer.php

Renders a bare page.

BlockPageVariant::build in core/modules/block/src/Plugin/DisplayVariant/BlockPageVariant.php

Builds and returns the renderable array for the display variant.

BlockPageVariantTest::providerBuild in core/modules/block/tests/src/Unit/Plugin/DisplayVariant/BlockPageVariantTest.php

BlockPageVariantTest::testBuildWithoutMainContent in core/modules/block/tests/src/Unit/Plugin/DisplayVariant/BlockPageVariantTest.php

Tests the building of a full page variant with no main content set.

... See full list

File

core/lib/Drupal/Core/Render/Element/StatusMessages.php, line 15

Contains \Drupal\Core\Render\Element\StatusMessages.

Namespace

Drupal\Core\Render\Element

class StatusMessages extends RenderElement {

  /**
   * {@inheritdoc}
   *
   * Generate the placeholder in a #pre_render callback, because the hash salt
   * needs to be accessed, which may not yet be available when this is called.
   */
  public function getInfo() {
    return [
      // May have a value of 'status' or 'error' when only displaying messages
      // of that specific type.
      '#display' => NULL,
      '#pre_render' => [
        get_class() . '::generatePlaceholder',
      ],
    ];
  }

  /**
   * #pre_render callback to generate a placeholder.
   *
   * @param array $element
   *   A renderable array.
   *
   * @return array
   *   The updated renderable array containing the placeholder.
   */
  public static function generatePlaceholder(array $element) {
    $element['messages_placeholder'] = [
      '#lazy_builder' => [
        get_class() . '::renderMessages',
        [
          $element['#display'],
        ],
      ],
      '#create_placeholder' => TRUE,
    ];
    return $element;
  }

  /**
   * #lazy_builder callback; replaces placeholder with messages.
   *
   * @param string|null $type
   *   Limit the messages returned by type. Defaults to NULL, meaning all types.
   *   Passed on to drupal_get_messages(). These values are supported:
   *   - NULL
   *   - 'status'
   *   - 'warning'
   *   - 'error'
   *
   * @return array
   *   A renderable array containing the messages.
   *
   * @see drupal_get_messages()
   */
  public static function renderMessages($type) {

    // Render the messages.
    return [
      '#theme' => 'status_messages',
      // @todo Improve when https://www.drupal.org/node/2278383 lands.
      '#message_list' => drupal_get_messages($type),
      '#status_headings' => [
        'status' => t('Status message'),
        'error' => t('Error message'),
        'warning' => t('Warning message'),
      ],
    ];
  }

}

Members

Name	Modifiers	Type	Description	Overrides
DependencySerializationTrait::$_serviceIds	protected	property	An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep	public	function		1
DependencySerializationTrait::__wakeup	public	function		2
PluginBase::$configuration	protected	property	Configuration information passed into the plugin.	2
PluginBase::$pluginDefinition	protected	property	The plugin implementation definition.
PluginBase::$pluginId	protected	property	The plugin_id.
PluginBase::DERIVATIVE_SEPARATOR		constant	A string which is used to separate base plugin IDs from the derivative ID.
PluginBase::getBaseId	public	function	Gets the base_plugin_id of the plugin instance. Overrides DerivativeInspectionInterface::getBaseId
PluginBase::getDerivativeId	public	function	Gets the derivative_id of the plugin instance. Overrides DerivativeInspectionInterface::getDerivativeId
PluginBase::getPluginDefinition	public	function	Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition
PluginBase::getPluginId	public	function	Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
PluginBase::__construct	public	function	Constructs a Drupal\Component\Plugin\PluginBase object.	69
RenderElement::preRenderAjaxForm	public static	function	Adds Ajax information about an element to communicate with JavaScript.
RenderElement::preRenderGroup	public static	function	Adds members of this group as actual elements for rendering.
RenderElement::processAjaxForm	public static	function	Form element processing handler for the #ajax form property.
RenderElement::processGroup	public static	function	Arranges elements into groups.
RenderElement::setAttributes	public static	function	Sets a form element's class attribute. Overrides ElementInterface::setAttributes
StatusMessages::generatePlaceholder	public static	function	#pre_render callback to generate a placeholder.
StatusMessages::getInfo	public	function	Generate the placeholder in a #pre_render callback, because the hash salt needs to be accessed, which may not yet be available when this is called. Overrides ElementInterface::getInfo
StatusMessages::renderMessages	public static	function	#lazy_builder callback; replaces placeholder with messages.
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.