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class LocalTasksBlock in Zircon Profile 8

Same name and namespace in other branches
  1. 8.0 core/lib/Drupal/Core/Menu/Plugin/Block/LocalTasksBlock.php \Drupal\Core\Menu\Plugin\Block\LocalTasksBlock

Provides a "Tabs" block to display the local tasks.

Plugin annotation


@Block(
  id = "local_tasks_block",
  admin_label = @Translation("Tabs"),
)

Hierarchy

Expanded class hierarchy of LocalTasksBlock

File

core/lib/Drupal/Core/Menu/Plugin/Block/LocalTasksBlock.php, line 27
Contains \Drupal\Core\Menu\Plugin\Block\LocalTasksBlock.

Namespace

Drupal\Core\Menu\Plugin\Block
View source 
class LocalTasksBlock extends BlockBase implements ContainerFactoryPluginInterface {

  /**
   * The local task manager.
   *
   * @var \Drupal\Core\Menu\LocalTaskManagerInterface
   */
  protected $localTaskManager;

  /**
   * The route match.
   *
   * @var \Drupal\Core\Routing\RouteMatchInterface
   */
  protected $routeMatch;

  /**
   * Creates a LocalTasksBlock instance.
   *
   * @param array $configuration
   *   A configuration array containing information about the plugin instance.
   * @param string $plugin_id
   *   The plugin_id for the plugin instance.
   * @param mixed $plugin_definition
   *   The plugin implementation definition.
   * @param \Drupal\Core\Menu\LocalTaskManagerInterface $local_task_manager
   *   The local task manager.
   * @param \Drupal\Core\Routing\RouteMatchInterface $route_match
   *   The route match.
   */
  public function __construct(array $configuration, $plugin_id, $plugin_definition, LocalTaskManagerInterface $local_task_manager, RouteMatchInterface $route_match) {
    parent::__construct($configuration, $plugin_id, $plugin_definition);
    $this->localTaskManager = $local_task_manager;
    $this->routeMatch = $route_match;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
    return new static($configuration, $plugin_id, $plugin_definition, $container
      ->get('plugin.manager.menu.local_task'), $container
      ->get('current_route_match'));
  }

  /**
   * {@inheritdoc}
   */
  public function defaultConfiguration() {
    return [
      'label_display' => FALSE,
      'primary' => TRUE,
      'secondary' => TRUE,
    ];
  }

  /**
   * {@inheritdoc}
   */
  public function build() {
    $config = $this->configuration;
    $cacheability = new CacheableMetadata();
    $tabs = [
      '#theme' => 'menu_local_tasks',
    ];

    // Add only selected levels for the printed output.
    if ($config['primary']) {
      $links = $this->localTaskManager
        ->getLocalTasks($this->routeMatch
        ->getRouteName(), 0);
      $cacheability = $cacheability
        ->merge($links['cacheability']);

      // Do not display single tabs.
      $tabs += [
        '#primary' => count(Element::getVisibleChildren($links['tabs'])) > 1 ? $links['tabs'] : [],
      ];
    }
    if ($config['secondary']) {
      $links = $this->localTaskManager
        ->getLocalTasks($this->routeMatch
        ->getRouteName(), 1);
      $cacheability = $cacheability
        ->merge($links['cacheability']);

      // Do not display single tabs.
      $tabs += [
        '#secondary' => count(Element::getVisibleChildren($links['tabs'])) > 1 ? $links['tabs'] : [],
      ];
    }
    $build = [];
    $cacheability
      ->applyTo($build);
    if (empty($tabs['#primary']) && empty($tabs['#secondary'])) {
      return $build;
    }
    return $build + $tabs;
  }

  /**
   * {@inheritdoc}
   */
  public function blockForm($form, FormStateInterface $form_state) {
    $config = $this->configuration;
    $defaults = $this
      ->defaultConfiguration();
    $form['levels'] = [
      '#type' => 'details',
      '#title' => $this
        ->t('Shown tabs'),
      '#description' => $this
        ->t('Select tabs being shown in the block'),
      // Open if not set to defaults.
      '#open' => $defaults['primary'] !== $config['primary'] || $defaults['secondary'] !== $config['secondary'],
    ];
    $form['levels']['primary'] = [
      '#type' => 'checkbox',
      '#title' => $this
        ->t('Show primary tabs'),
      '#default_value' => $config['primary'],
    ];
    $form['levels']['secondary'] = [
      '#type' => 'checkbox',
      '#title' => $this
        ->t('Show secondary tabs'),
      '#default_value' => $config['secondary'],
    ];
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function blockSubmit($form, FormStateInterface $form_state) {
    $levels = $form_state
      ->getValue('levels');
    $this->configuration['primary'] = $levels['primary'];
    $this->configuration['secondary'] = $levels['secondary'];
  }

}

Members

Namesort descending Modifiers Type Description Overrides
BlockBase::$transliteration protected property The transliteration service.
BlockBase::access public function Indicates whether the block should be shown. Overrides BlockPluginInterface::access
BlockBase::baseConfigurationDefaults protected function Returns generic default configuration for block plugins.
BlockBase::blockAccess protected function Indicates whether the block should be shown. 12
BlockBase::blockValidate public function Adds block type-specific validation for the block form. Overrides BlockPluginInterface::blockValidate 1
BlockBase::buildConfigurationForm public function Creates a generic configuration form for all block types. Individual block plugins can add elements to this form by overriding BlockBase::blockForm(). Most block plugins should not override this method unless they need to alter the generic form elements. Overrides PluginFormInterface::buildConfigurationForm 1
BlockBase::calculateDependencies public function Calculates dependencies for the configured plugin. Overrides DependentPluginInterface::calculateDependencies
BlockBase::getConfiguration public function Gets this plugin's configuration. Overrides ConfigurablePluginInterface::getConfiguration 1
BlockBase::getMachineNameSuggestion public function Suggests a machine name to identify an instance of this block. Overrides BlockPluginInterface::getMachineNameSuggestion 1
BlockBase::label public function Returns the user-facing block label. Overrides BlockPluginInterface::label
BlockBase::setConfiguration public function Sets the configuration for this plugin instance. Overrides ConfigurablePluginInterface::setConfiguration
BlockBase::setConfigurationValue public function Sets a particular value in the block settings. Overrides BlockPluginInterface::setConfigurationValue
BlockBase::setTransliteration public function Sets the transliteration service.
BlockBase::submitConfigurationForm public function Most block plugins should not override this method. To add submission handling for a specific block type, override BlockBase::blockSubmit(). Overrides PluginFormInterface::submitConfigurationForm
BlockBase::transliteration protected function Wraps the transliteration service.
BlockBase::validateConfigurationForm public function Most block plugins should not override this method. To add validation for a specific block type, override BlockBase::blockValidate(). Overrides PluginFormInterface::validateConfigurationForm
ContextAwarePluginAssignmentTrait::addContextAssignmentElement protected function Builds a form element for assigning a context to a given slot.
ContextAwarePluginAssignmentTrait::contextHandler protected function Wraps the context handler.
ContextAwarePluginAssignmentTrait::t abstract protected function Ensures the t() method is available.
ContextAwarePluginBase::$context protected property The data objects representing the context of this plugin.
ContextAwarePluginBase::createContextFromConfiguration protected function Overrides ContextAwarePluginBase::createContextFromConfiguration
ContextAwarePluginBase::getCacheContexts public function 9
ContextAwarePluginBase::getCacheMaxAge public function 7
ContextAwarePluginBase::getCacheTags public function 4
ContextAwarePluginBase::getContext public function Overrides ContextAwarePluginBase::getContext
ContextAwarePluginBase::getContextDefinition public function Overrides ContextAwarePluginBase::getContextDefinition
ContextAwarePluginBase::getContextDefinitions public function Overrides ContextAwarePluginBase::getContextDefinitions
ContextAwarePluginBase::getContextMapping public function Gets a mapping of the expected assignment names to their context names. Overrides ContextAwarePluginInterface::getContextMapping
ContextAwarePluginBase::getContexts public function Gets the defined contexts. Overrides ContextAwarePluginInterface::getContexts
ContextAwarePluginBase::getContextValue public function Gets the value for a defined context. Overrides ContextAwarePluginInterface::getContextValue
ContextAwarePluginBase::getContextValues public function Gets the values for all defined contexts. Overrides ContextAwarePluginInterface::getContextValues
ContextAwarePluginBase::setContext public function Set a context on this plugin. Overrides ContextAwarePluginBase::setContext
ContextAwarePluginBase::setContextMapping public function Sets a mapping of the expected assignment names to their context names. Overrides ContextAwarePluginInterface::setContextMapping
ContextAwarePluginBase::setContextValue public function Sets the value for a defined context. Overrides ContextAwarePluginBase::setContextValue
ContextAwarePluginBase::validateContexts public function Validates the set values for the defined contexts. Overrides ContextAwarePluginInterface::validateContexts
DependencySerializationTrait::$_serviceIds protected property An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep public function 1
DependencySerializationTrait::__wakeup public function 2
LocalTasksBlock::$localTaskManager protected property The local task manager.
LocalTasksBlock::$routeMatch protected property The route match.
LocalTasksBlock::blockForm public function Returns the configuration form elements specific to this block plugin. Overrides BlockBase::blockForm
LocalTasksBlock::blockSubmit public function Adds block type-specific submission handling for the block form. Overrides BlockBase::blockSubmit
LocalTasksBlock::build public function Builds and returns the renderable array for this block plugin. Overrides BlockPluginInterface::build
LocalTasksBlock::create public static function Creates an instance of the plugin. Overrides ContainerFactoryPluginInterface::create
LocalTasksBlock::defaultConfiguration public function Gets default configuration for this plugin. Overrides BlockBase::defaultConfiguration
LocalTasksBlock::__construct public function Creates a LocalTasksBlock instance. Overrides BlockBase::__construct
PluginBase::$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
StringTranslationTrait::$stringTranslation protected property The string translation service.
StringTranslationTrait::formatPlural protected function Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals protected function Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation protected function Gets the string translation service.
StringTranslationTrait::setStringTranslation public function Sets the string translation service to use. 2
TypedDataTrait::$typedDataManager protected property The typed data manager used for creating the data types.
TypedDataTrait::getTypedDataManager public function Gets the typed data manager. 1
TypedDataTrait::setTypedDataManager public function Sets the typed data manager. 1