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class BlockForm in Drupal 9

Same name and namespace in other branches
  1. 8 core/modules/block/src/BlockForm.php \Drupal\block\BlockForm

Provides form for block instance forms.

@internal

Hierarchy

Expanded class hierarchy of BlockForm

2 files declare their use of BlockForm
BlockEntitySettingTrayForm.php in core/modules/settings_tray/src/Block/BlockEntitySettingTrayForm.php
BlockFormTest.php in core/modules/block/tests/src/Unit/BlockFormTest.php

File

core/modules/block/src/BlockForm.php, line 25

Namespace

Drupal\block
View source
class BlockForm extends EntityForm {

  /**
   * The block entity.
   *
   * @var \Drupal\block\BlockInterface
   */
  protected $entity;

  /**
   * The block storage.
   *
   * @var \Drupal\Core\Entity\EntityStorageInterface
   */
  protected $storage;

  /**
   * The condition plugin manager.
   *
   * @var \Drupal\Core\Condition\ConditionManager
   */
  protected $manager;

  /**
   * The language manager service.
   *
   * @var \Drupal\Core\Language\LanguageManagerInterface
   */
  protected $language;

  /**
   * The theme handler.
   *
   * @var \Drupal\Core\Extension\ThemeHandler
   */
  protected $themeHandler;

  /**
   * The context repository service.
   *
   * @var \Drupal\Core\Plugin\Context\ContextRepositoryInterface
   */
  protected $contextRepository;

  /**
   * The plugin form manager.
   *
   * @var \Drupal\Core\Plugin\PluginFormFactoryInterface
   */
  protected $pluginFormFactory;

  /**
   * Constructs a BlockForm object.
   *
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The entity type manager.
   * @param \Drupal\Core\Executable\ExecutableManagerInterface $manager
   *   The ConditionManager for building the visibility UI.
   * @param \Drupal\Core\Plugin\Context\ContextRepositoryInterface $context_repository
   *   The lazy context repository service.
   * @param \Drupal\Core\Language\LanguageManagerInterface $language
   *   The language manager.
   * @param \Drupal\Core\Extension\ThemeHandlerInterface $theme_handler
   *   The theme handler.
   * @param \Drupal\Core\Plugin\PluginFormFactoryInterface $plugin_form_manager
   *   The plugin form manager.
   */
  public function __construct(EntityTypeManagerInterface $entity_type_manager, ExecutableManagerInterface $manager, ContextRepositoryInterface $context_repository, LanguageManagerInterface $language, ThemeHandlerInterface $theme_handler, PluginFormFactoryInterface $plugin_form_manager) {
    $this->storage = $entity_type_manager
      ->getStorage('block');
    $this->manager = $manager;
    $this->contextRepository = $context_repository;
    $this->language = $language;
    $this->themeHandler = $theme_handler;
    $this->pluginFormFactory = $plugin_form_manager;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    return new static($container
      ->get('entity_type.manager'), $container
      ->get('plugin.manager.condition'), $container
      ->get('context.repository'), $container
      ->get('language_manager'), $container
      ->get('theme_handler'), $container
      ->get('plugin_form.factory'));
  }

  /**
   * {@inheritdoc}
   */
  public function form(array $form, FormStateInterface $form_state) {
    $entity = $this->entity;

    // Store the gathered contexts in the form state for other objects to use
    // during form building.
    $form_state
      ->setTemporaryValue('gathered_contexts', $this->contextRepository
      ->getAvailableContexts());
    $form['#tree'] = TRUE;
    $form['settings'] = [];
    $subform_state = SubformState::createForSubform($form['settings'], $form, $form_state);
    $form['settings'] = $this
      ->getPluginForm($entity
      ->getPlugin())
      ->buildConfigurationForm($form['settings'], $subform_state);
    $form['visibility'] = $this
      ->buildVisibilityInterface([], $form_state);

    // If creating a new block, calculate a safe default machine name.
    $form['id'] = [
      '#type' => 'machine_name',
      '#maxlength' => 64,
      '#description' => $this
        ->t('A unique name for this block instance. Must be alpha-numeric and underscore separated.'),
      '#default_value' => !$entity
        ->isNew() ? $entity
        ->id() : $this
        ->getUniqueMachineName($entity),
      '#machine_name' => [
        'exists' => '\\Drupal\\block\\Entity\\Block::load',
        'replace_pattern' => '[^a-z0-9_.]+',
        'source' => [
          'settings',
          'label',
        ],
      ],
      '#required' => TRUE,
      '#disabled' => !$entity
        ->isNew(),
    ];

    // Theme settings.
    if ($theme = $entity
      ->getTheme()) {
      $form['theme'] = [
        '#type' => 'value',
        '#value' => $theme,
      ];
    }
    else {
      $theme = $this
        ->config('system.theme')
        ->get('default');
      $theme_options = [];
      foreach ($this->themeHandler
        ->listInfo() as $theme_name => $theme_info) {
        if (!empty($theme_info->status)) {
          $theme_options[$theme_name] = $theme_info->info['name'];
        }
      }
      $form['theme'] = [
        '#type' => 'select',
        '#options' => $theme_options,
        '#title' => $this
          ->t('Theme'),
        '#default_value' => $theme,
        '#ajax' => [
          'callback' => '::themeSwitch',
          'wrapper' => 'edit-block-region-wrapper',
        ],
      ];
    }

    // Hidden weight setting.
    $weight = $entity
      ->isNew() ? $this
      ->getRequest()->query
      ->get('weight', 0) : $entity
      ->getWeight();
    $form['weight'] = [
      '#type' => 'hidden',
      '#default_value' => $weight,
    ];

    // Region settings.
    $entity_region = $entity
      ->getRegion();
    $region = $entity
      ->isNew() ? $this
      ->getRequest()->query
      ->get('region', $entity_region) : $entity_region;
    $form['region'] = [
      '#type' => 'select',
      '#title' => $this
        ->t('Region'),
      '#description' => $this
        ->t('Select the region where this block should be displayed.'),
      '#default_value' => $region,
      '#required' => TRUE,
      '#options' => system_region_list($theme, REGIONS_VISIBLE),
      '#prefix' => '<div id="edit-block-region-wrapper">',
      '#suffix' => '</div>',
    ];
    $form['#attached']['library'][] = 'block/drupal.block.admin';
    return $form;
  }

  /**
   * Handles switching the available regions based on the selected theme.
   */
  public function themeSwitch($form, FormStateInterface $form_state) {
    $form['region']['#options'] = system_region_list($form_state
      ->getValue('theme'), REGIONS_VISIBLE);
    return $form['region'];
  }

  /**
   * Helper function for building the visibility UI form.
   *
   * @param array $form
   *   An associative array containing the structure of the form.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The current state of the form.
   *
   * @return array
   *   The form array with the visibility UI added in.
   */
  protected function buildVisibilityInterface(array $form, FormStateInterface $form_state) {
    $form['visibility_tabs'] = [
      '#type' => 'vertical_tabs',
      '#title' => $this
        ->t('Visibility'),
      '#parents' => [
        'visibility_tabs',
      ],
      '#attached' => [
        'library' => [
          'block/drupal.block',
        ],
      ],
    ];

    // @todo Allow list of conditions to be configured in
    //   https://www.drupal.org/node/2284687.
    $visibility = $this->entity
      ->getVisibility();
    $definitions = $this->manager
      ->getFilteredDefinitions('block_ui', $form_state
      ->getTemporaryValue('gathered_contexts'), [
      'block' => $this->entity,
    ]);
    foreach ($definitions as $condition_id => $definition) {

      // Don't display the current theme condition.
      if ($condition_id == 'current_theme') {
        continue;
      }

      // Don't display the language condition until we have multiple languages.
      if ($condition_id == 'language' && !$this->language
        ->isMultilingual()) {
        continue;
      }

      // Don't display the deprecated node type condition unless it has existing
      // settings.
      // @todo Make this more generic in
      //   https://www.drupal.org/project/drupal/issues/2922451. Also remove
      //   the node_type specific logic below.
      if ($condition_id == 'node_type' && !isset($visibility[$condition_id])) {
        continue;
      }

      /** @var \Drupal\Core\Condition\ConditionInterface $condition */
      $condition = $this->manager
        ->createInstance($condition_id, isset($visibility[$condition_id]) ? $visibility[$condition_id] : []);
      $form_state
        ->set([
        'conditions',
        $condition_id,
      ], $condition);
      $condition_form = $condition
        ->buildConfigurationForm([], $form_state);
      $condition_form['#type'] = 'details';
      $condition_form['#title'] = $condition
        ->getPluginDefinition()['label'];
      $condition_form['#group'] = 'visibility_tabs';
      $form[$condition_id] = $condition_form;
    }
    if (isset($form['node_type'])) {
      $form['node_type']['#title'] = $this
        ->t('Content types (deprecated)');
      $form['node_type']['bundles']['#title'] = $this
        ->t('Content types');
      $form['node_type']['negate']['#type'] = 'value';
      $form['node_type']['negate']['#title_display'] = 'invisible';
      $form['node_type']['negate']['#value'] = $form['node_type']['negate']['#default_value'];
    }
    if (isset($form['entity_bundle:node'])) {
      $form['entity_bundle:node']['negate']['#type'] = 'value';
      $form['entity_bundle:node']['negate']['#title_display'] = 'invisible';
      $form['entity_bundle:node']['negate']['#value'] = $form['entity_bundle:node']['negate']['#default_value'];
    }
    if (isset($form['user_role'])) {
      $form['user_role']['#title'] = $this
        ->t('Roles');
      unset($form['user_role']['roles']['#description']);
      $form['user_role']['negate']['#type'] = 'value';
      $form['user_role']['negate']['#value'] = $form['user_role']['negate']['#default_value'];
    }
    if (isset($form['request_path'])) {
      $form['request_path']['#title'] = $this
        ->t('Pages');
      $form['request_path']['negate']['#type'] = 'radios';
      $form['request_path']['negate']['#default_value'] = (int) $form['request_path']['negate']['#default_value'];
      $form['request_path']['negate']['#title_display'] = 'invisible';
      $form['request_path']['negate']['#options'] = [
        $this
          ->t('Show for the listed pages'),
        $this
          ->t('Hide for the listed pages'),
      ];
    }
    if (isset($form['language'])) {
      $form['language']['negate']['#type'] = 'value';
      $form['language']['negate']['#value'] = $form['language']['negate']['#default_value'];
    }
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  protected function actions(array $form, FormStateInterface $form_state) {
    $actions = parent::actions($form, $form_state);
    $actions['submit']['#value'] = $this
      ->t('Save block');
    $actions['delete']['#title'] = $this
      ->t('Remove block');
    return $actions;
  }

  /**
   * {@inheritdoc}
   */
  public function validateForm(array &$form, FormStateInterface $form_state) {
    parent::validateForm($form, $form_state);
    $form_state
      ->setValue('weight', (int) $form_state
      ->getValue('weight'));

    // The Block Entity form puts all block plugin form elements in the
    // settings form element, so just pass that to the block for validation.
    $this
      ->getPluginForm($this->entity
      ->getPlugin())
      ->validateConfigurationForm($form['settings'], SubformState::createForSubform($form['settings'], $form, $form_state));
    $this
      ->validateVisibility($form, $form_state);
  }

  /**
   * Helper function to independently validate the visibility UI.
   *
   * @param array $form
   *   A nested array form elements comprising the form.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The current state of the form.
   */
  protected function validateVisibility(array $form, FormStateInterface $form_state) {

    // Validate visibility condition settings.
    foreach ($form_state
      ->getValue('visibility') as $condition_id => $values) {

      // All condition plugins use 'negate' as a Boolean in their schema.
      // However, certain form elements may return it as 0/1. Cast here to
      // ensure the data is in the expected type.
      if (array_key_exists('negate', $values)) {
        $form_state
          ->setValue([
          'visibility',
          $condition_id,
          'negate',
        ], (bool) $values['negate']);
      }

      // Allow the condition to validate the form.
      $condition = $form_state
        ->get([
        'conditions',
        $condition_id,
      ]);
      $condition
        ->validateConfigurationForm($form['visibility'][$condition_id], SubformState::createForSubform($form['visibility'][$condition_id], $form, $form_state));
    }
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    parent::submitForm($form, $form_state);
    $entity = $this->entity;

    // The Block Entity form puts all block plugin form elements in the
    // settings form element, so just pass that to the block for submission.
    $sub_form_state = SubformState::createForSubform($form['settings'], $form, $form_state);

    // Call the plugin submit handler.
    $block = $entity
      ->getPlugin();
    $this
      ->getPluginForm($block)
      ->submitConfigurationForm($form, $sub_form_state);

    // If this block is context-aware, set the context mapping.
    if ($block instanceof ContextAwarePluginInterface && $block
      ->getContextDefinitions()) {
      $context_mapping = $sub_form_state
        ->getValue('context_mapping', []);
      $block
        ->setContextMapping($context_mapping);
    }
    $this
      ->submitVisibility($form, $form_state);

    // Save the settings of the plugin.
    $entity
      ->save();
    $this
      ->messenger()
      ->addStatus($this
      ->t('The block configuration has been saved.'));
    $form_state
      ->setRedirect('block.admin_display_theme', [
      'theme' => $form_state
        ->getValue('theme'),
    ], [
      'query' => [
        'block-placement' => Html::getClass($this->entity
          ->id()),
      ],
    ]);
  }

  /**
   * Helper function to independently submit the visibility UI.
   *
   * @param array $form
   *   A nested array form elements comprising the form.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The current state of the form.
   */
  protected function submitVisibility(array $form, FormStateInterface $form_state) {
    foreach ($form_state
      ->getValue('visibility') as $condition_id => $values) {

      // Allow the condition to submit the form.
      $condition = $form_state
        ->get([
        'conditions',
        $condition_id,
      ]);
      $condition
        ->submitConfigurationForm($form['visibility'][$condition_id], SubformState::createForSubform($form['visibility'][$condition_id], $form, $form_state));
      $condition_configuration = $condition
        ->getConfiguration();

      // Update the visibility conditions on the block.
      $this->entity
        ->getVisibilityConditions()
        ->addInstanceId($condition_id, $condition_configuration);
    }
  }

  /**
   * Generates a unique machine name for a block.
   *
   * @param \Drupal\block\BlockInterface $block
   *   The block entity.
   *
   * @return string
   *   Returns the unique name.
   */
  public function getUniqueMachineName(BlockInterface $block) {
    $suggestion = $block
      ->getPlugin()
      ->getMachineNameSuggestion();

    // Get all the blocks which starts with the suggested machine name.
    $query = $this->storage
      ->getQuery();
    $query
      ->condition('id', $suggestion, 'CONTAINS');
    $block_ids = $query
      ->execute();
    $block_ids = array_map(function ($block_id) {
      $parts = explode('.', $block_id);
      return end($parts);
    }, $block_ids);

    // Iterate through potential IDs until we get a new one. E.g.
    // 'plugin', 'plugin_2', 'plugin_3', etc.
    $count = 1;
    $machine_default = $suggestion;
    while (in_array($machine_default, $block_ids)) {
      $machine_default = $suggestion . '_' . ++$count;
    }
    return $machine_default;
  }

  /**
   * Retrieves the plugin form for a given block and operation.
   *
   * @param \Drupal\Core\Block\BlockPluginInterface $block
   *   The block plugin.
   *
   * @return \Drupal\Core\Plugin\PluginFormInterface
   *   The plugin form for the block.
   */
  protected function getPluginForm(BlockPluginInterface $block) {
    if ($block instanceof PluginWithFormsInterface) {
      return $this->pluginFormFactory
        ->createInstance($block, 'configure');
    }
    return $block;
  }

}

Members

Namesort descending Modifiers Type Description Overrides
BlockForm::$contextRepository protected property The context repository service.
BlockForm::$entity protected property The block entity. Overrides EntityForm::$entity
BlockForm::$language protected property The language manager service.
BlockForm::$manager protected property The condition plugin manager.
BlockForm::$pluginFormFactory protected property The plugin form manager.
BlockForm::$storage protected property The block storage.
BlockForm::$themeHandler protected property The theme handler.
BlockForm::actions protected function Returns an array of supported actions for the current entity form. Overrides EntityForm::actions 1
BlockForm::buildVisibilityInterface protected function Helper function for building the visibility UI form. 1
BlockForm::create public static function Instantiates a new instance of this class. Overrides FormBase::create
BlockForm::form public function Gets the actual form array to be built. Overrides EntityForm::form 1
BlockForm::getPluginForm protected function Retrieves the plugin form for a given block and operation. 1
BlockForm::getUniqueMachineName public function Generates a unique machine name for a block.
BlockForm::submitForm public function This is the default entity object builder function. It is called before any other submit handler to build the new entity object to be used by the following submit handlers. At this point of the form workflow the entity is validated and the form state… Overrides EntityForm::submitForm
BlockForm::submitVisibility protected function Helper function to independently submit the visibility UI. 1
BlockForm::themeSwitch public function Handles switching the available regions based on the selected theme.
BlockForm::validateForm public function Form validation handler. Overrides FormBase::validateForm
BlockForm::validateVisibility protected function Helper function to independently validate the visibility UI. 1
BlockForm::__construct public function Constructs a BlockForm object.
DependencySerializationTrait::$_entityStorages protected property
DependencySerializationTrait::$_serviceIds protected property
DependencySerializationTrait::__sleep public function 2
DependencySerializationTrait::__wakeup public function 2
EntityForm::$entityTypeManager protected property The entity type manager. 3
EntityForm::$moduleHandler protected property The module handler service.
EntityForm::$operation protected property The name of the current operation.
EntityForm::actionsElement protected function Returns the action form element for the current entity form.
EntityForm::afterBuild public function Form element #after_build callback: Updates the entity with submitted data.
EntityForm::buildEntity public function Builds an updated entity object based upon the submitted form values. Overrides EntityFormInterface::buildEntity 3
EntityForm::buildForm public function Form constructor. Overrides FormInterface::buildForm 13
EntityForm::copyFormValuesToEntity protected function Copies top-level form values to entity properties. 9
EntityForm::getBaseFormId public function Returns a string identifying the base form. Overrides BaseFormIdInterface::getBaseFormId 6
EntityForm::getEntity public function Gets the form entity. Overrides EntityFormInterface::getEntity
EntityForm::getEntityFromRouteMatch public function Determines which entity will be used by this form from a RouteMatch object. Overrides EntityFormInterface::getEntityFromRouteMatch 3
EntityForm::getFormId public function Returns a unique string identifying the form. Overrides FormInterface::getFormId 12
EntityForm::getOperation public function Gets the operation identifying the form. Overrides EntityFormInterface::getOperation
EntityForm::init protected function Initialize the form state and the entity before the first form build. 3
EntityForm::prepareEntity protected function Prepares the entity object before the form is built first. 3
EntityForm::prepareInvokeAll protected function Invokes the specified prepare hook variant.
EntityForm::processForm public function Process callback: assigns weights and hides extra fields.
EntityForm::save public function Form submission handler for the 'save' action. Overrides EntityFormInterface::save 47
EntityForm::setEntity public function Sets the form entity. Overrides EntityFormInterface::setEntity
EntityForm::setEntityTypeManager public function Sets the entity type manager for this form. Overrides EntityFormInterface::setEntityTypeManager
EntityForm::setModuleHandler public function Sets the module handler for this form. Overrides EntityFormInterface::setModuleHandler
EntityForm::setOperation public function Sets the operation for this form. Overrides EntityFormInterface::setOperation
FormBase::$configFactory protected property The config factory. 3
FormBase::$requestStack protected property The request stack. 1
FormBase::$routeMatch protected property The route match.
FormBase::config protected function Retrieves a configuration object.
FormBase::configFactory protected function Gets the config factory for this form. 3
FormBase::container private function Returns the service container.
FormBase::currentUser protected function Gets the current user.
FormBase::getRequest protected function Gets the request object.
FormBase::getRouteMatch protected function Gets the route match.
FormBase::logger protected function Gets the logger for a specific channel.
FormBase::redirect protected function Returns a redirect response object for the specified route.
FormBase::resetConfigFactory public function Resets the configuration factory.
FormBase::setConfigFactory public function Sets the config factory for this form.
FormBase::setRequestStack public function Sets the request stack object to use.
LoggerChannelTrait::$loggerFactory protected property The logger channel factory service.
LoggerChannelTrait::getLogger protected function Gets the logger for a specific channel.
LoggerChannelTrait::setLoggerFactory public function Injects the logger channel factory.
MessengerTrait::$messenger protected property The messenger. 27
MessengerTrait::messenger public function Gets the messenger. 27
MessengerTrait::setMessenger public function Sets the messenger.
RedirectDestinationTrait::$redirectDestination protected property The redirect destination service. 1
RedirectDestinationTrait::getDestinationArray protected function Prepares a 'destination' URL query parameter for use with \Drupal\Core\Url.
RedirectDestinationTrait::getRedirectDestination protected function Returns the redirect destination service.
RedirectDestinationTrait::setRedirectDestination public function Sets the redirect destination service.
StringTranslationTrait::$stringTranslation protected property The string translation service. 4
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.