class ContextualLinksPlaceholder in Zircon Profile 8

Provides a contextual_links_placeholder element.

Plugin annotation

@RenderElement("contextual_links_placeholder");

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\contextual\Element\ContextualLinksPlaceholder

2 #type uses of ContextualLinksPlaceholder

ContextualLinks::render in core/modules/contextual/src/Plugin/views/field/ContextualLinks.php

Overrides \Drupal\views\Plugin\views\field\FieldPluginBase::render().

contextual_preprocess in core/modules/contextual/contextual.module

Implements hook_preprocess().

File

core/modules/contextual/src/Element/ContextualLinksPlaceholder.php, line 19

Contains \Drupal\contextual\Element\ContextualLinksPlaceholder.

Namespace

Drupal\contextual\Element

class ContextualLinksPlaceholder extends RenderElement {

  /**
   * {@inheritdoc}
   */
  public function getInfo() {
    $class = get_class($this);
    return array(
      '#pre_render' => array(
        array(
          $class,
          'preRenderPlaceholder',
        ),
      ),
      '#id' => NULL,
    );
  }

  /**
   * Pre-render callback: Renders a contextual links placeholder into #markup.
   *
   * Renders an empty (hence invisible) placeholder div with a data-attribute
   * that contains an identifier ("contextual id"), which allows the JavaScript
   * of the drupal.contextual-links library to dynamically render contextual
   * links.
   *
   * @param array $element
   *   A structured array with #id containing a "contextual id".
   *
   * @return array
   *   The passed-in element with a contextual link placeholder in '#markup'.
   *
   * @see _contextual_links_to_id()
   */
  public static function preRenderPlaceholder(array $element) {
    $element['#markup'] = SafeMarkup::format('<div@attributes></div>', [
      '@attributes' => new Attribute([
        'data-contextual-id' => $element['#id'],
      ]),
    ]);
    return $element;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
ContextualLinksPlaceholder::getInfo	public	function	Returns the element properties for this element. Overrides ElementInterface::getInfo
ContextualLinksPlaceholder::preRenderPlaceholder	public static	function	Pre-render callback: Renders a contextual links placeholder into #markup.
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
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.