csgov_theme.theme

<?php

declare(strict_types = 1);

use Drupal\Core\Entity\ContentEntityInterface;
use \Drupal\Core\Form\FormStateInterface;
use Drupal\node\NodeInterface;


/**
 * @file
 * Functions to support theming.
 */

/**
 * Implements hook_preprocess_image_widget().
 */
function csgov_theme_preprocess_image_widget(array &$variables) {
  $data = &$variables['data'];

  // This prevents image widget templates from rendering preview container HTML
  // to users that do not have permission to access these previews.
  // @todo revisit in https://drupal.org/node/953034
  // @todo revisit in https://drupal.org/node/3114318
  if (isset($data['preview']['#access']) && $data['preview']['#access'] === FALSE) {
    unset($data['preview']);
  }
}

/**
 * Implements hook_preprocess_HOOK().
 */
function csgov_theme_preprocess_block(&$variables): void {
  // Set block_id variable.
  if (isset($variables['elements']['#id'])) {
    $variables['content']['#attributes']['block_id'] = $variables['elements']['#id'];
  }

  // Handle Page title block.
  if ($variables['plugin_id'] == 'page_title_block') {
    $page_entity = csgov_base_get_page_entity();

    if ($page_entity instanceof ContentEntityInterface) {
      // Retrieve possible overridden value for page title block.
      // Hide page title block if current node has hero set.
      if (
        $page_entity instanceof NodeInterface &&
        $page_entity->hasField('field_csgov_hero') &&
        $page_entity->hasField('field_csgov_has_hero') &&
        $page_entity->get('field_csgov_has_hero')->value &&
        !$page_entity->get('field_csgov_hero')->isEmpty()
        ) {
        $variables['hide_block'] = TRUE;
      }
    }
  }
}

/**
 * Implements hook_preprocess_HOOK() for page templates.
 */
function csgov_theme_preprocess_page(&$variables) {
  // Print the Installation Profile version.
  // Get the name of the current installation profile.
  $profile_name = \Drupal::installProfile();

  // Load the profile using the extension list service.
  $profile = \Drupal::service('extension.list.profile')->get($profile_name);

  $variables['install_profile_name'] = $profile_name;
  // Check if the profile object was loaded and get the info.
  if ($profile) {
    $info = $profile->info;
    // Check if version is set and add it to the variables.
    if (isset($info['version'])) {
      $variables['install_profile_version'] = $info['version'];
    } else {
      $variables['install_profile_version'] = FALSE;
    }
  }
}

/**
 * Implements hook_theme_suggestions_HOOK_alter().
 */
function csgov_theme_theme_suggestions_block_alter(array &$suggestions, array $variables) {
  if (isset($variables['elements']['#configuration']['webform_id']) && $variables['elements']['#configuration']['webform_id']) {
    $suggestions[] = 'block__webform__' . $variables['elements']['#configuration']['webform_id'];
  }
}

/**
 * Implements hook_form_alter().
 */
function csgov_theme_form_alter(&$form, $form_state, $form_id) {
  // Add a library to all webforms.
  if (isset($form['#webform_id'])) {
    $form['#attached']['library'][] = 'csgov_theme/webform';
  }
}