custom_block.pages.inc

<?php

/**
 * @file
 * Provides page callbacks for custom blocks.
 */
use Drupal\custom_block\Plugin\Core\Entity\CustomBlockType;
use Drupal\custom_block\Plugin\Core\Entity\CustomBlock;
use Symfony\Component\HttpFoundation\RedirectResponse;

/**
 * Prepares variables for a custom block type creation list templates.
 *
 * Default template: custom-block-add-list.html.twig.
 *
 * @param array $variables
 *   An associative array containing:
 *   - content: An array of block types.
 *
 * @see custom_block_add_page()
 */
function template_preprocess_custom_block_add_list(&$variables) {
  $variables['types'] = array();
  foreach ($variables['content'] as $type) {
    $variables['types'][$type->id] = array();
    $variables['types'][$type->id]['link'] = l($type
      ->label(), 'block/add/' . $type
      ->id());
    $variables['types'][$type->id]['description'] = filter_xss_admin($type->description);
  }
}

/**
 * Page callback: Presents the custom block creation form.
 *
 * @param Drupal\custom_block\Plugin\Core\Entity\CustomBlockType $block_type
 *   The custom block type to add.
 *
 * @return array
 *   A form array as expected by drupal_render().
 *
 * @see custom_block_menu()
 */
function custom_block_add(CustomBlockType $block_type) {
  drupal_set_title(t('Add %type custom block', array(
    '%type' => $block_type
      ->label(),
  )), PASS_THROUGH);
  $block = entity_create('custom_block', array(
    'type' => $block_type
      ->id(),
  ));
  $options = array();
  $request = drupal_container()
    ->get('request');
  if (($theme = $request->attributes
    ->get('theme')) && in_array($theme, array_keys(list_themes()))) {

    // We have navigated to this page from the block library and will keep track
    // of the theme for redirecting the user to the configuration page for the
    // newly created block in the given theme.
    $block
      ->setTheme($theme);
  }
  return entity_get_form($block);
}

/**
 * Page callback: Presents the custom block edit form.
 *
 * @param Drupal\custom_block\Plugin\Core\Entity\CustomBlock $block
 *   The custom block to edit.
 *
 * @return array
 *   A form array as expected by drupal_render().
 *
 * @see custom_block_menu()
 */
function custom_block_edit(CustomBlock $block) {
  drupal_set_title(t('Edit custom block %label', array(
    '%label' => $block
      ->label(),
  )), PASS_THROUGH);
  return entity_get_form($block);
}

/**
 * Page callback: Form constructor for the custom block deletion form.
 *
 * @param Drupal\custom_block\Plugin\Core\Entity\CustomBlock $block
 *   The custom block to be deleted.
 *
 * @see custom_block_menu()
 * @see custom_block_delete_form_submit()
 *
 * @ingroup forms
 */
function custom_block_delete_form($form, &$form_state, CustomBlock $block) {
  $form_state['custom_block'] = $block;
  $form['id'] = array(
    '#type' => 'value',
    '#value' => $block
      ->id(),
  );
  $instances = $block
    ->getInstances();
  $form['message'] = array(
    '#type' => 'markup',
    '#markup' => format_plural(count($instances), 'This will also remove 1 placed block instance.', 'This will also remove @count placed block instances.'),
    '#access' => !empty($instances),
  );
  return confirm_form($form, t('Are you sure you want to delete %label?', array(
    '%label' => $block
      ->label(),
  )), 'admin/structure/block', t('This action cannot be undone.'), t('Delete'));
}

/**
 * Form submission handler for custom_block_delete_form().
 */
function custom_block_delete_form_submit($form, &$form_state) {
  $block = $form_state['custom_block'];
  $block
    ->delete();
  drupal_set_message(t('Custom block %label has been deleted.', array(
    '%label' => $block
      ->label(),
  )));
  watchdog('custom_block', 'Custom block %label has been deleted.', array(
    '%label' => $block
      ->label(),
  ), WATCHDOG_NOTICE);
  $form_state['redirect'] = 'admin/structure/block';
}