protected function BlockListBuilder::buildBlocksForm in Zircon Profile 8

Same name and namespace in other branches

1. 8.0 core/modules/block/src/BlockListBuilder.php \Drupal\block\BlockListBuilder::buildBlocksForm()

Builds the main "Blocks" portion of the form.

Return value

array

1 call to BlockListBuilder::buildBlocksForm()

BlockListBuilder::buildForm in core/modules/block/src/BlockListBuilder.php

Form constructor.

File

core/modules/block/src/BlockListBuilder.php, line 151

Contains \Drupal\block\BlockListBuilder.

Class

BlockListBuilder

Defines a class to build a listing of block entities.

Namespace

Drupal\block

Code

protected function buildBlocksForm() {

  // Build blocks first for each region.
  $blocks = [];
  $entities = $this
    ->load();

  /** @var \Drupal\block\BlockInterface[] $entities */
  foreach ($entities as $entity_id => $entity) {
    $definition = $entity
      ->getPlugin()
      ->getPluginDefinition();
    $blocks[$entity
      ->getRegion()][$entity_id] = array(
      'label' => $entity
        ->label(),
      'entity_id' => $entity_id,
      'weight' => $entity
        ->getWeight(),
      'entity' => $entity,
      'category' => $definition['category'],
    );
  }
  $form = array(
    '#type' => 'table',
    '#header' => array(
      $this
        ->t('Block'),
      $this
        ->t('Category'),
      $this
        ->t('Region'),
      $this
        ->t('Weight'),
      $this
        ->t('Operations'),
    ),
    '#attributes' => array(
      'id' => 'blocks',
    ),
  );

  // Weights range from -delta to +delta, so delta should be at least half
  // of the amount of blocks present. This makes sure all blocks in the same
  // region get an unique weight.
  $weight_delta = round(count($entities) / 2);
  $placement = FALSE;
  if ($this->request->query
    ->has('block-placement')) {
    $placement = $this->request->query
      ->get('block-placement');
    $form['#attached']['drupalSettings']['blockPlacement'] = $placement;
  }

  // Loop over each region and build blocks.
  $regions = $this
    ->systemRegionList($this
    ->getThemeName(), REGIONS_VISIBLE);
  $block_regions_with_disabled = $regions + array(
    BlockInterface::BLOCK_REGION_NONE => $this
      ->t('Disabled', array(), array(
      'context' => 'Plural',
    )),
  );
  foreach ($block_regions_with_disabled as $region => $title) {
    $form['#tabledrag'][] = array(
      'action' => 'match',
      'relationship' => 'sibling',
      'group' => 'block-region-select',
      'subgroup' => 'block-region-' . $region,
      'hidden' => FALSE,
    );
    $form['#tabledrag'][] = array(
      'action' => 'order',
      'relationship' => 'sibling',
      'group' => 'block-weight',
      'subgroup' => 'block-weight-' . $region,
    );
    $form['region-' . $region] = array(
      '#attributes' => array(
        'class' => array(
          'region-title',
          'region-title-' . $region,
        ),
        'no_striping' => TRUE,
      ),
    );
    $form['region-' . $region]['title'] = array(
      '#theme_wrappers' => array(
        'container' => array(
          '#attributes' => array(
            'class' => 'region-title__action',
          ),
        ),
      ),
      '#prefix' => $region != BlockInterface::BLOCK_REGION_NONE ? $title : $block_regions_with_disabled[$region],
      '#type' => 'link',
      '#title' => $this
        ->t('Place block <span class="visually-hidden">in the %region region</span>', [
        '%region' => $block_regions_with_disabled[$region],
      ]),
      '#url' => Url::fromRoute('block.admin_library', [
        'theme' => $this
          ->getThemeName(),
      ], [
        'query' => [
          'region' => $region,
        ],
      ]),
      '#wrapper_attributes' => array(
        'colspan' => 5,
      ),
      '#attributes' => [
        'class' => [
          'use-ajax',
          'button',
          'button--small',
        ],
        'data-dialog-type' => 'modal',
        'data-dialog-options' => Json::encode([
          'width' => 700,
        ]),
      ],
    );
    $form['region-' . $region . '-message'] = array(
      '#attributes' => array(
        'class' => array(
          'region-message',
          'region-' . $region . '-message',
          empty($blocks[$region]) ? 'region-empty' : 'region-populated',
        ),
      ),
    );
    $form['region-' . $region . '-message']['message'] = array(
      '#markup' => '<em>' . $this
        ->t('No blocks in this region') . '</em>',
      '#wrapper_attributes' => array(
        'colspan' => 5,
      ),
    );
    if (isset($blocks[$region])) {
      foreach ($blocks[$region] as $info) {
        $entity_id = $info['entity_id'];
        $form[$entity_id] = array(
          '#attributes' => array(
            'class' => array(
              'draggable',
            ),
          ),
        );
        if ($placement && $placement == Html::getClass($entity_id)) {
          $form[$entity_id]['#attributes']['class'][] = 'color-success';
          $form[$entity_id]['#attributes']['class'][] = 'js-block-placed';
        }
        $form[$entity_id]['info'] = array(
          '#plain_text' => $info['label'],
          '#wrapper_attributes' => array(
            'class' => array(
              'block',
            ),
          ),
        );
        $form[$entity_id]['type'] = array(
          '#markup' => $info['category'],
        );
        $form[$entity_id]['region-theme']['region'] = array(
          '#type' => 'select',
          '#default_value' => $region,
          '#empty_value' => BlockInterface::BLOCK_REGION_NONE,
          '#title' => $this
            ->t('Region for @block block', array(
            '@block' => $info['label'],
          )),
          '#title_display' => 'invisible',
          '#options' => $regions,
          '#attributes' => array(
            'class' => array(
              'block-region-select',
              'block-region-' . $region,
            ),
          ),
          '#parents' => array(
            'blocks',
            $entity_id,
            'region',
          ),
        );
        $form[$entity_id]['region-theme']['theme'] = array(
          '#type' => 'hidden',
          '#value' => $this
            ->getThemeName(),
          '#parents' => array(
            'blocks',
            $entity_id,
            'theme',
          ),
        );
        $form[$entity_id]['weight'] = array(
          '#type' => 'weight',
          '#default_value' => $info['weight'],
          '#delta' => $weight_delta,
          '#title' => $this
            ->t('Weight for @block block', array(
            '@block' => $info['label'],
          )),
          '#title_display' => 'invisible',
          '#attributes' => array(
            'class' => array(
              'block-weight',
              'block-weight-' . $region,
            ),
          ),
        );
        $form[$entity_id]['operations'] = $this
          ->buildOperations($info['entity']);
      }
    }
  }

  // Do not allow disabling the main system content block when it is present.
  if (isset($form['system_main']['region'])) {
    $form['system_main']['region']['#required'] = TRUE;
  }
  return $form;
}