panopoly_search-8.x-2.x-dev/panopoly_search.module

<?php

/**
 * @file
 * Hooks for the panopoly_search module.
 */

use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\StringTranslation\TranslatableMarkup;
use Drupal\views\Plugin\views\cache\CachePluginBase;
use Drupal\views\ViewExecutable;

/**
 * Implements hook_theme_suggestions_HOOK().
 */
function panopoly_search_theme_suggestions_block(array $variables) {
  $suggestions = [];

  // Use the same template suggestions as the Drupal core search block.
  // This should apply the custom styling for the search block from the theme.
  $plugin_id = $variables['elements']['#plugin_id'];
  if ($plugin_id === 'panopoly_search_box') {
    $suggestions[] = 'block__search_form_block';
  }

  return $suggestions;
}

/**
 * Implements hook_theme_suggestions_HOOK().
 */
function panopoly_search_theme_suggestions_form(array $variables) {
  $suggestions = [];

  // Use the same template suggestions as the Drupal core search block.
  // This should apply the custom styling for the search block from the theme.
  $form_id = $variables['element']['#form_id'];
  if ($form_id === 'panopoly_search_box_form') {
    $suggestions[] = 'form__search_block_form';
  }

  return $suggestions;
}

/**
 * Implements hook_form_FORM_ID_alter().
 */
function panopoly_search_form_panopoly_search_box_form_alter(&$form, FormStateInterface $form_state) {
  $form['form_build_id']['#access'] = FALSE;
  $form['form_token']['#access'] = FALSE;
  $form['form_id']['#access'] = FALSE;
}

/**
 * Implements hook_form_FORM_ID_alter().
 */
function panopoly_search_form_views_exposed_form_alter(&$form, FormStateInterface $form_state) {
  /** @var \Drupal\views\Entity\View $view */
  $view = $form_state->getStorage('view')['view'];
  if (in_array($view->id(), ['panopoly_search_db', 'panopoly_search_solr'])) {
    $form['keys']['#title'] = t('Enter your keywords');
    $form['keys']['#type'] = 'search';

    // Use the default styling from theme.
    $form['#attributes']['class'][] = 'search-form';
    $form['actions']['submit']['#attributes']['class'][] = 'search-form__submit';

    // Wrap the keys and button in an inline container.
    $form['container'] = [
      '#type' => 'container',
      '#attributes' => [
        'class' => ['container-inline'],
      ],
    ];
    foreach (['keys', 'actions'] as $key) {
      $form['container'][$key] = $form[$key];
      unset($form[$key]);
    }
    $form['#attributes']['class'][] = 'clearfix';

    // Add a validation callback.
    $form['#validate'][] = '_panopoly_search_form_validate';
  }
}

/**
 * Validation callback for views_exposed_form() for our search views.
 */
function _panopoly_search_form_validate($form, FormStateInterface $form_state) {
  // Don't do anything if 'keys' isn't specified at all.
  $input = $form_state->getUserInput();
  if ($input['keys'] === NULL) {
    return;
  }

  // Show error if 'keys' is specified, but empty.
  $keys = trim($form_state->getValue('keys'));
  if (empty($keys)) {
    $form_state->setErrorByName('keys', t('Please enter some keywords.'));
  }
}

/**
 * Implements hook_views_pre_render().
 */
function panopoly_search_views_pre_render(ViewExecutable $view) {
  if (in_array($view->storage->id(), [
    'panopoly_search_db',
    'panopoly_search_solr',
  ])) {
    $view->element['#attached']['library'][] = 'panopoly_search/view';
  }
}

/**
 * Implements hook_views_post_render().
 */
function panopoly_search_views_post_render(ViewExecutable $view, &$output, CachePluginBase $cache) {
  if (!in_array($view->id(), [
    'panopoly_search_db',
    'panopoly_search_solr',
  ])) {
    return;
  }

  $keys = \Drupal::request()->query->get('keys');
  if (!empty($keys)) {
    $count = count($view->result);
    $title = new TranslatableMarkup('Search results: @count matched %keys', [
      '@count' => \Drupal::translation()
        ->formatPlural($count, '1 item', '@count items'),
      '%keys' => $keys,
    ]);

    // Set the view title.
    $view->setTitle($title);

    // Log the search so it can appear in 'Top search phrases' report.
    \Drupal::logger('search')->notice('Searched %type for %keys.', [
      '%keys' => $keys,
      '%type' => 'Content',
    ]);
  }
}

/**
 * Implements hook_menu_links_discovered_alter().
 */
function panopoly_search_menu_links_discovered_alter(&$links) {
  $module_handler = \Drupal::moduleHandler();
  if ($module_handler->moduleExists('dblog') && !$module_handler->moduleExists('search')) {
    $links['dblog.search'] = [
      'title' => new TranslatableMarkup('Top search phrases'),
      'route_name' => 'dblog.search',
      'description' => new TranslatableMarkup('View most popular search phrases.'),
      'parent' => 'system.admin_reports',
    ];
  }

  return $links;
}

/**
 * Gets the route to the search page.
 *
 * @return string|null
 *   The route name.
 */
function panopoly_search_page_route() {
  if (\Drupal::moduleHandler()->moduleExists('panopoly_search_solr')) {
    return 'page_manager.page_view_panopoly_search_panopoly_search-layout_builder-0';
  }
  if (\Drupal::moduleHandler()->moduleExists('panopoly_search_db')) {
    return 'page_manager.page_view_panopoly_search_panopoly_search-layout_builder-0';
  }

  return NULL;
}