You are here

Home » API reference » Open Social 8.9 » Block.php » Block

public function Block::preprocess in Open Social 8.9

Same name and namespace in other branches
  1. 8 themes/socialbase/src/Plugin/Preprocess/Block.php \Drupal\socialbase\Plugin\Preprocess\Block::preprocess()
  2. 8.2 themes/socialbase/src/Plugin/Preprocess/Block.php \Drupal\socialbase\Plugin\Preprocess\Block::preprocess()
  3. 8.3 themes/socialbase/src/Plugin/Preprocess/Block.php \Drupal\socialbase\Plugin\Preprocess\Block::preprocess()
  4. 8.4 themes/socialbase/src/Plugin/Preprocess/Block.php \Drupal\socialbase\Plugin\Preprocess\Block::preprocess()
  5. 8.5 themes/socialbase/src/Plugin/Preprocess/Block.php \Drupal\socialbase\Plugin\Preprocess\Block::preprocess()
  6. 8.6 themes/socialbase/src/Plugin/Preprocess/Block.php \Drupal\socialbase\Plugin\Preprocess\Block::preprocess()
  7. 8.7 themes/socialbase/src/Plugin/Preprocess/Block.php \Drupal\socialbase\Plugin\Preprocess\Block::preprocess()
  8. 8.8 themes/socialbase/src/Plugin/Preprocess/Block.php \Drupal\socialbase\Plugin\Preprocess\Block::preprocess()

Preprocess theme hook variables.

Parameters

array $variables: The variables array, passed by reference (modify in place).

string $hook: The name of the theme hook.

array $info: The theme hook info array.

Overrides PreprocessBase::preprocess

File

themes/socialbase/src/Plugin/Preprocess/Block.php, line 25

Class

Block
Pre-processes variables for the "block" theme hook.

Namespace

Drupal\socialbase\Plugin\Preprocess

Code

public function preprocess(array &$variables, $hook, array $info) {
  parent::preprocess($variables, $hook, $info);
  $region = '';

  // Blocks don't work well without an id. Unfortunately layout builder blocks
  // don't have one by default, so we generate one.
  if (empty($variables['elements']['#id']) && !empty($variables['content']['_layout_builder'])) {
    $region = '_LAYOUT_BUILDER_DO_NOT_CHANGE';
    $variables['elements']['#id'] = Html::getUniqueId('_LAYOUT_BUILDER_DO_NOT_CHANGE');
    $variables['attributes']['id'] = $variables['elements']['#id'];
  }

  // Early return because block missing ID, for example because
  // Rendered in panels display
  // https://www.drupal.org/node/2873726
  if (empty($variables['elements']['#id'])) {
    return;
  }

  // Find out what the active theme is first.
  $theme = \Drupal::theme()
    ->getActiveTheme();
  $route_name = \Drupal::routeMatch()
    ->getRouteName();

  // Get the region of a block.
  $block_entity = BlockEntity::load($variables['elements']['#id']);
  if ($block_entity) {
    $region = $block_entity
      ->getRegion();
  }
  $prefix = '';

  // If socialbase is one of the basetheme, we need a prefix for block ids.
  if (array_key_exists('socialbase', $theme
    ->getBaseThemes())) {
    $prefix = $theme
      ->getName();
  }
  $variables['card'] = FALSE;
  $regions_card = [
    'complementary',
    'complementary_top',
    'complementary_bottom',
    'content_top',
    'content_bottom',
    '',
  ];
  if (in_array($region, $regions_card)) {
    $variables['card'] = TRUE;
    if (array_key_exists('socialbase', $theme
      ->getBaseThemes())) {
      $prefix = $theme
        ->getName() . '_';
    }
    $block_buttons = [
      $prefix . 'event_add_block',
      $prefix . 'topic_add_block',
      $prefix . 'group_add_block',
      $prefix . 'group_add_event_block',
      $prefix . 'group_add_topic_block',
      $prefix . 'add_data_policy_revision',
    ];
    if (in_array($variables['elements']['#id'], $block_buttons)) {
      $variables['card'] = FALSE;
    }
  }
  if (isset($variables['elements']['kpi_analytics'])) {
    $variables['card'] = TRUE;
  }

  // Wrap the group/membership table in a card element.
  if (isset($variables['elements']['#plugin_id']) && $variables['elements']['#plugin_id'] == 'system_main_block') {
    $route_names = [
      'entity.group_content.collection',
      'data_policy.data_policy',
      'social_gdpr.data_policy.revision',
      'social_gdpr.data_policy.revisions',
    ];
    if (in_array($route_name, $route_names)) {
      $variables['card'] = TRUE;
      if ($route_name == 'social_gdpr.data_policy.revision') {
        $variables['attributes']['class'][] = 'card__body';
      }
    }
  }

  // Show group tags block in a card.
  if ($variables['elements']['#plugin_id'] == 'social_group_tags_block') {
    $variables['card'] = TRUE;
  }

  // Show group managers block in a card.
  if ($variables['elements']['#derivative_plugin_id'] == 'group_managers-block_list_managers') {
    $variables['card'] = TRUE;
  }

  // For all platform_intro blocks we want them to appear as cards.
  if (isset($variables['elements']['content']['#block_content'])) {
    if ($variables['elements']['content']['#block_content']
      ->bundle() == 'platform_intro') {
      $variables['card'] = TRUE;
    }
  }
  $variables['content']['#attributes']['block'] = $variables['attributes']['id'];

  // Fix label for Views exposed filter blocks.
  if (!empty($variables['configuration']['views_label']) && empty($variables['configuration']['label'])) {
    $variables['label'] = $variables['configuration']['views_label'];
  }

  // Check if the block is a views exposed form filter, add condition to add
  // classes in twig file.
  if (isset($variables['content']['#form_id']) && $variables['content']['#form_id'] == 'views_exposed_form') {
    $variables['complementary'] = TRUE;
  }

  // Add search_block to main menu.
  if (\Drupal::moduleHandler()
    ->moduleExists('social_search') && ($variables['elements']['#id'] == 'mainnavigation' || $variables['elements']['#id'] == $prefix . '_mainnavigation')) {
    $block = BlockEntity::load('search_content_block_header');
    if (!empty($block)) {
      $block_output = \Drupal::entityManager()
        ->getViewBuilder('block')
        ->view($block);
      $variables['content']['links']['search_block'] = $block_output;
    }
  }

  // Preprocess search block header.
  if (isset($variables['content']['search_form'])) {
    $variables['content']['search_form']['#attributes']['role'] = 'search';
    $variables['content']['search_form']['actions']['submit']['#is_button'] = FALSE;
    $variables['content']['search_form']['actions']['#addsearchicon'] = TRUE;
    if ($region == 'hero') {
      $variables['content']['search_form']['#attributes']['class'][] = 'hero-form';
      $variables['content']['search_form']['#region'] = 'hero';
      $variables['content']['search_form']['actions']['submit']['#addsearchicon'] = TRUE;
    }
    elseif ($region == 'content_top') {
      $variables['content']['search_form']['#region'] = 'content-top';
      $variables['content']['search_form']['search_input_content']['#attributes']['placeholder'] = t('What are you looking for ?');
      $variables['content']['search_form']['search_input_content']['#attributes']['autocomplete'] = 'off';
    }
    else {
      $variables['content']['search_form']['#attributes']['class'][] = 'navbar-form';
    }
  }

  // Add Group ID for "See all groups link".
  if ($variables['attributes']['id'] === 'block-views-block-group-members-block-newest-members') {
    $group = \Drupal::routeMatch()
      ->getParameter('group');
    $variables['group_id'] = $group
      ->id();
  }

  // Add User ID for "See all link".
  if ($variables['attributes']['id'] === 'block-views-block-events-block-events-on-profile' || $variables['attributes']['id'] === 'block-views-block-topics-block-user-topics' || $variables['attributes']['id'] === 'block-views-block-groups-block-user-groups') {
    $profile_user_id = \Drupal::routeMatch()
      ->getParameter('user');
    if (!is_null($profile_user_id) && is_object($profile_user_id)) {
      $profile_user_id = $profile_user_id
        ->id();
    }
    $variables['profile_user_id'] = $profile_user_id;
  }

  // AN Homepage block.
  if (isset($variables['elements']['content']['#block_content'])) {
    if ($variables['elements']['content']['#block_content']
      ->bundle() == 'hero_call_to_action_block') {
      if (isset($variables['elements']['content']['field_hero_image']) && isset($variables['elements']['content']['field_hero_image'][0])) {

        /** @var \Drupal\image\Plugin\Field\FieldType\ImageItem $image_item */
        $image_item = $variables['elements']['content']['field_hero_image'][0]['#item'];
        $file_id = NULL;
        if ($image_item && $image_item instanceof ImageItem) {

          /** @var \Drupal\block_content\Entity\BlockContent $block_content */
          $block_content = $image_item
            ->getEntity();
          if ($block_content && $block_content instanceof BlockContent) {
            $file_id = $block_content
              ->get('field_hero_image')->target_id;
          }
        }
        $image_style = $variables['elements']['content']['field_hero_image'][0]['#image_style'];

        // First filter out image_style,
        // So responsive image module doesn't break.
        if (isset($image_style)) {

          // If it's an existing file.
          if ($file = File::load($file_id)) {

            // Style and set it in the content.
            $styled_image_url = ImageStyle::load($image_style)
              ->buildUrl($file
              ->getFileUri());
            $variables['image_url'] = $styled_image_url;

            // Add extra class.
            $variables['has_image'] = TRUE;

            // Remove the original.
            unset($variables['content']['field_hero_image']);
          }
        }
      }
    }
  }

  // Remove our workaround ids so they aren't actually rendered.
  if ($region === '_LAYOUT_BUILDER_DO_NOT_CHANGE') {
    unset($variables['elements']['#id'], $variables['attributes']['id']);
  }
}