dxpr_theme.theme

<?php

/**
 * @file
 * Bootstrap sub-theme.
 *
 * Place your custom PHP code in this file.
 */

use Drupal\Core\Url;
use Drupal\image\Entity\ImageStyle;
use Drupal\media\Entity\Media;
use Drupal\Component\Utility\Html;
use Drupal\Core\Entity\ContentEntityInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Render\Markup;
use Drupal\Core\Template\Attribute;
use Drupal\block\Entity\Block;
use Drupal\media\MediaInterface;
use Drupal\node\NodeInterface;

/**
 * Implements hook_library_info_alter().
 *
 * Replaces style sheets declared in libraries with color-altered style sheets.
 */
function dxpr_theme_library_info_alter(&$libraries, $extension) {
  if ($extension == 'dxpr_theme') {
    // Manage dxpr_theme themesettings CSS.
    $current_theme = \Drupal::service('theme.manager')->getActiveTheme()->getName();
    $key = 'public://dxpr_theme/css/themesettings-' . $current_theme . '.css';
    if (\Drupal::service('file_system')->realpath($key)) {
      $libraries['global-styling']['css']['theme'][$key] = [
        'minified' => FALSE,
        'weight' => 5,
      ];
    }
    // Subthemes dxpr_theme.css.
    if ($current_theme !== 'dxpr_theme') {
      // Subthemes carry their own copy of dxpr_theme.css,
      // disable dxpr_theme/css/dxpr_theme.css.
      unset($libraries['global-styling']['css']['theme']['css/dxpr_theme.css']);
    }
  }
}

/**
 * Prepares variables for the all templates. Theme settings.
 */
function dxpr_theme_preprocess(&$variables, $hook, $info) {
  $theme = \Drupal::theme()
    ->getActiveTheme()
    ->getName();
  $variables['theme']['settings'] = \Drupal::config($theme . '.settings')->get();
}

/**
 * Prepares variables for the html template. Adds node object.
 *
 * Default template: html.html.twig.
 *
 * See the html.html.twig template for the list of variables.
 */
function dxpr_theme_preprocess_html(&$variables) {

  if ($node = \Drupal::routeMatch()->getParameter('node')) {
    $variables['node'] = $node;
  }

  foreach (\Drupal::routeMatch()->getParameters() as $parameter) {
    if ($parameter instanceof ContentEntityInterface) {
      $variables['attributes']['class'][] = Html::getClass('page-' . $parameter->getEntityTypeId() . '-' . $parameter->id());
      break;
    }
  }

  // Include CSS variables and set color scheme class.
  $variables['#attached']['library'][] = 'dxpr_theme/variables';
  $variables['html_attributes']
    ->setAttribute('class', 'dxpr-scheme-' . (theme_get_setting('color_scheme') ?? 'default'));

  // Body background image.
  if (array_key_exists('node', $variables)) {
    $node = $variables['node'];

    if (isset($node) && !is_string($node)) {
      if ($node->hasField('field_dth_body_background')) {
        // Get the module handler service.
        $module_handler = \Drupal::service('module_handler');

        // Check if the module is enabled.
        if ($module_handler->moduleExists('media_library')) {
          $media = $node->get('field_dth_body_background')->entity ?? 0;
          if ($media instanceof MediaInterface) {
            $thumbnailUri = $media->get('thumbnail')->entity->getFileUri();
            $url = \Drupal::service('file_url_generator')->generateString($thumbnailUri);
            if (isset($url)) {
              $variables['body_bg_image_path'] = $url;
            }
          }
        }
      }
    }
  }

  // Load Sooper Features Controllers.
  $dxprThemePath = \Drupal::service('extension.list.theme')->getPath('dxpr_theme');
  foreach (\Drupal::service('file_system')->scanDirectory($dxprThemePath . '/features', '/controller.inc/i') as $file) {
    require_once $file->uri;
    $function_name = basename($file->filename, '.inc');
    $function_name = str_replace('-', '_', $function_name);
    if (function_exists($function_name)) {
      $function_name($variables);
    }
  }

  if ($custom_js = theme_get_setting('custom_javascript_site')) {
    $custom_js = Markup::create($custom_js);
    $variables['page_bottom']['custom_javascript_site'] = [
      '#markup' => $custom_js,
    ];
  }
  $variables['page_bottom']['custom_javascript'] = [
    '#markup' => '<div class="hidden" id="dxpr-theme-js-seed">sfy39587stp18</div>',
  ];

  if ($header_height = theme_get_setting('header_top_height')) {
    $variables['#attached']['drupalSettings']['dxpr_themeSettings']['headerHeight'] = $header_height;
  }

  if ($header_scroll_offset = theme_get_setting('header_top_height_sticky_offset')) {
    $variables['#attached']['drupalSettings']['dxpr_themeSettings']['headerOffset'] = $header_scroll_offset;
  }

  // Mobile header breakpoint.
  if ($header_mobile_breakpoint = theme_get_setting('header_mobile_breakpoint')) {
    $variables['#attached']['drupalSettings']['dxpr_themeSettings']['headerMobileBreakpoint'] = $header_mobile_breakpoint;
  }

  // Fixed mobile header.
  if ($header_mobile_fixed = theme_get_setting('header_mobile_fixed')) {
    $variables['#attached']['drupalSettings']['dxpr_themeSettings']['headerMobileFixed'] = $header_mobile_fixed;
  }
  // Mobile header height.
  if ($header_mobile_height = theme_get_setting('header_mobile_height')) {
    $variables['#attached']['drupalSettings']['dxpr_themeSettings']['headerMobileHeight'] = $header_mobile_height;
  }

  if ($header_menu_direction = ((theme_get_setting('header_side_direction') !== NULL)) ? theme_get_setting('header_side_direction') : 'left') {
    $variables['#attached']['drupalSettings']['dxpr_themeSettings']['headerSideDirection'] = $header_menu_direction;
  }

  // Second header sticky.
  if ($second_header_sticky = theme_get_setting('second_header_sticky')) {
    $variables['#attached']['drupalSettings']['dxpr_themeSettings']['secondHeaderSticky'] = $second_header_sticky;
  }

  // Menu hamburger animation.
  if ($header_hamburger_animation = theme_get_setting('hamburger_animation')) {
    $variables['#attached']['drupalSettings']['dxpr_themeSettings']['hamburgerAnimation'] = $header_hamburger_animation;
  }

  // Add Apple Touch Icon URL if configured.
  $web_icons_media_id = theme_get_setting('web_icons_upload');
  if ($web_icons_media_id) {
    $media = Media::load($web_icons_media_id);
    if ($media && $media->field_media_image->entity) {
      $image_style = ImageStyle::load('apple_touch_icon');
      if ($image_style) {
        $variables['apple_touch_icon_url'] = $image_style->buildUrl($media->field_media_image->entity->getFileUri());
      }
    }
  }

  // Add web manifest URL if icons are configured.
  if ($web_icons_media_id) {
    // Create a simple manifest JSON file in the public files directory.
    $file_system = \Drupal::service('file_system');
    $public_path = $file_system->realpath('public://');
    $manifest_path = $public_path . '/manifest.webmanifest';

    _dxpr_theme_generate_manifest($web_icons_media_id, $manifest_path);

    // Absolute URL for the manifest.
    $variables['manifest_url'] = \Drupal::service('file_url_generator')
      ->generateAbsoluteString('public://manifest.webmanifest');

  }
}

/**
 * Implements template_preprocess_page()
 */
function dxpr_theme_preprocess_page(&$variables) {
  $variables['navbar_attributes'] = [
    'class' => ['navbar'],
    'id' => ['navbar'],
    'role' => ['banner'],
  ];
  $variables['navbar_attributes'] = new Attribute($variables['navbar_attributes']);

  $hide_regions = $local_hide = [];
  if (theme_get_setting('hidden_regions') && !empty(array_keys(array_filter(theme_get_setting('hidden_regions'))))) {
    $hide_regions = array_keys(array_filter(theme_get_setting('hidden_regions')));
  }
  if (!empty($variables['node'])
    && $variables['node'] instanceof NodeInterface
    && $variables['node']->hasField('field_dth_hide_regions')) {
    $local_hide = array_column($variables['node']->get('field_dth_hide_regions')->getValue(), 'value');
    $hide_regions = array_unique(array_merge($hide_regions, $local_hide));
  }
  if (in_array('navigation', $hide_regions)) {
    $hide_regions[] = 'navigation_collapsible';
  }
  if (in_array('header', $hide_regions)) {
    $hide_regions[] = 'navigation_collapsible';
    $hide_regions[] = 'navigation';
  }
  foreach ($hide_regions as $value) {
    if (!empty($variables['page'][$value])) {
      unset($variables['page'][$value]);
    }
  }

  // Title background image.
  if (array_key_exists('node', $variables)) {
    $node = $variables['node'];

    if (isset($node) && !is_string($node)) {
      if ($node->hasField('field_dth_page_title_backgrou')) {
        // Get the module handler service.
        $module_handler = \Drupal::service('module_handler');

        // Check if the module is enabled.
        if ($module_handler->moduleExists('media_library')) {
          $media = $node->get('field_dth_page_title_backgrou')->entity ?? 0;
          if ($media instanceof MediaInterface) {
            $thumbnailUri = $media->get('thumbnail')->entity->getFileUri();
            $url = \Drupal::service('file_url_generator')->generateString($thumbnailUri);
            if (isset($url)) {
              $variables['title_bg_image_path'] = $url;
            }
          }
        }
      }
    }
  }

  // CSS to load on every page.
  $dxpr_theme_libraries = [
    // Bootstrap TAILORING.
    'dxpr_theme/bootstrap-5',
    'dxpr_theme/bootstrap-theme',
    // @todo Include only if needed.
    // DXPR THEME BASE.
    'dxpr_theme/forms',
    'dxpr_theme/layout',
    'dxpr_theme/page-title',
    'dxpr_theme/typography',
    // DXPR THEME Components.
    // @todo Include only if needed.
    'dxpr_theme/enhanced-dropdowns',
    'dxpr_theme/admin',
    // Overrides.
    // @todo Include only if needed.
    'dxpr_theme/drupal-webform',
    'dxpr_theme/dxpr-theme-builder',
    // HELPERS.
    'dxpr_theme/helper-classes',
  ];
  foreach ($dxpr_theme_libraries as $dxpr_theme_library) {
    $variables['#attached']['library'][] = $dxpr_theme_library;
  }
}

/**
 * Implements hook_preprocess_menu().
 *
 * Workaround for Drupal core regression where Views-generated menu links don't
 * receive proper active trail detection. Compares menu item URLs against the
 * current page path to set active states and propagates to parent items.
 *
 * @see https://www.drupal.org/project/dxpr_theme/issues/3553914
 * @see https://www.drupal.org/project/drupal/issues/3359511
 *
 * @todo Remove when core issue #3359511 is resolved.
 */
function dxpr_theme_preprocess_menu(&$variables) {
  if (empty($variables['items'])) {
    return;
  }

  $current_path = \Drupal::service('path.current')->getPath();
  $is_front = \Drupal::service('path.matcher')->isFrontPage();
  dxpr_theme_menu_set_active_trail($variables['items'], $current_path, $is_front);

  // Ensure menu is cached per URL to prevent wrong active states.
  $variables['#cache']['contexts'][] = 'url.path';
}

/**
 * Recursively sets active trail on menu items by comparing URL paths.
 *
 * @param array $items
 *   Menu items array (passed by reference).
 * @param string $current_path
 *   Current page path (e.g., "/test-view").
 * @param bool $is_front
 *   Whether the current page is the front page.
 *
 * @return bool
 *   TRUE if any item in this level or below is active.
 */
function dxpr_theme_menu_set_active_trail(array &$items, $current_path, $is_front) {
  $has_active = FALSE;

  foreach ($items as &$item) {
    if (empty($item['url'])) {
      continue;
    }

    $is_active = FALSE;
    $child_active = FALSE;

    try {
      $item_path = $item['url'] instanceof
      Url ? $item['url']->toString()
        : (string) $item['url'];
      if ($item_path === $current_path || ($is_front && $item_path === '/')) {
        $item['in_active_trail'] = TRUE;
        $item['is_active'] = TRUE;
        $is_active = TRUE;
      }
    }
    catch (\Exception $e) {
      // Silently continue if URL cannot be processed.
    }

    if (!empty($item['below'])) {
      $child_active = dxpr_theme_menu_set_active_trail($item['below'], $current_path, $is_front);
      if ($child_active && empty($item['in_active_trail'])) {
        $item['in_active_trail'] = TRUE;
      }
    }

    if ($is_active || $child_active) {
      $has_active = TRUE;
    }
  }

  return $has_active;
}

/**
 * Implements template_menu_local_tasks()
 */
function dxpr_theme_preprocess_menu_local_tasks(&$variables) {
  if ($variables['secondary']) {
    // Secondary tabs are styled with bootstrap pager CSS.
    $variables['#attached']['library'][] = 'dxpr_theme/drupal-pager';
  }

  // Check if admin_toolbar_tools is enabled and configured to show local tasks.
  $module_handler = \Drupal::service('module_handler');
  if ($module_handler->moduleExists('admin_toolbar_tools')) {
    $config = \Drupal::config('admin_toolbar_tools.settings');
    $show_local_tasks = $config->get('show_local_tasks');

    if ($show_local_tasks === TRUE) {
      // Only hide tabs for users who have permission to access the toolbar.
      $current_user = \Drupal::currentUser();
      if ($current_user->hasPermission('access toolbar')) {
        // Hide tabs when admin_toolbar_tools is showing local tasks.
        $variables['hide_tabs'] = TRUE;
      }
    }
  }
}

/**
 * Implements template_preprocess_block()
 */
function dxpr_theme_preprocess_block(&$variables) {
  if (isset($variables['elements']['#id'])) {
    $block = Block::load($variables['elements']['#id']);
    if ($block) {
      $variables['region'] = $block->getRegion();

      // If it exists, add the 'content_class' from the block's settings to
      // the content's CSS classes.
      if ($block_classes = $block->getThirdPartySettings('block_classes')) {
        if (!empty($block_classes['content_class'])) {
          $variables['content']['#attributes']['class'][] = $block_classes['content_class'];
        }
      }
    }
  }
  // Include DXPR Theme full search block css library.
  if ($variables['plugin_id'] === 'full_screen_search') {
    $variables['#attached']['library'][] = 'dxpr_theme/dxpr-theme-full-screen-search';
    $variables['#attached']['library'][] = 'dxpr_theme/dxpr-theme-full-screen-search-js';
  }

  // Include DXPR Theme book navigation css library.
  if ($variables['plugin_id'] === 'book_navigation') {
    $variables['#attached']['library'][] = 'dxpr_theme/drupal-book';
  }
}

/**
 * Implements template_preprocess_links()
 */
function dxpr_theme_preprocess_links__language_block(&$variables) {
  $variables['attributes']['class'][] = 'nav';
  $variables['attributes']['class'][] = 'menu';
}

/**
 * Implements template_preprocess_region()
 */
function dxpr_theme_preprocess_region(&$variables) {
  switch ($variables['region']) {
    case 'secondary_header':
      $variables['#attached']['library'][] = 'dxpr_theme/dxpr-theme-secondary-header';
      // Fall through to also attach navigation libraries.
    case 'navigation':
    case 'navigation_collapsible':
      $variables['#attached']['library'][] = 'dxpr_theme/dxpr-theme-header';
      $variables['#attached']['library'][] = 'dxpr_theme/dxpr-theme-header--top';
      $variables['#attached']['library'][] = 'dxpr_theme/dxpr-theme-header--mobile';
      $variables['#attached']['library'][] = 'dxpr_theme/dxpr-theme-navigation-colors';
      break;

    case 'footer':
      $variables['#attached']['library'][] = 'dxpr_theme/footer-menu';
      break;
  }

  // Apply class to block design regions.
  if ($block_design_regions = array_keys(array_filter(theme_get_setting('block_design_regions')))) {
    if (in_array($variables['region'], $block_design_regions)) {
      $variables['attributes']['class'][] = 'region-block-design';
    }
  }
}

/**
 * Implements template_preprocess_breadcrumb()
 */
function dxpr_theme_preprocess_breadcrumb(&$variables) {
  // Remove 'Home' from breadcrumb trail.
  if (count($variables['breadcrumb'])) {
    array_shift($variables['breadcrumb']);
  }
  if (!empty($variables['breadcrumb'])) {
    $request = \Drupal::request();
    $route_match = \Drupal::routeMatch();
    $page_title = \Drupal::service('title_resolver')->getTitle($request, $route_match->getRouteObject());

    if (!empty($page_title)) {
      $variables['breadcrumb'][] = [
        'text' => $page_title,
        'attributes' => new Attribute(['class' => ['active']]),
      ];
    }
    $variables['#attached']['library'][] = 'dxpr_theme/drupal-breadcrumbs';

    // Always load breadcrumb on settings page.
    if ($route_match->getRouteName() === 'dxpr_theme_helper.settings') {
      $variables['theme']['settings']['page_title_breadcrumbs'] = TRUE;
    }
  }
}

/**
 * Implements template_preprocess_comment()
 */
function dxpr_theme_preprocess_comment(&$variables) {
  if ($variables['elements']['#comment']) {
    $variables['#attached']['library'][] = 'bootstrap5/indented';
    $variables['#attached']['library'][] = 'dxpr_theme/drupal-comments';
  }
}

/**
 * Implements template_preprocess_pager()
 */
function dxpr_theme_preprocess_pager(&$variables) {
  $variables['#attached']['library'][] = 'dxpr_theme/drupal-pager';
}

/**
 * Implements template_preprocess_book_navigation()
 */
function dxpr_theme_preprocess_book_navigation(&$variables) {
  $variables['#attached']['library'][] = 'dxpr_theme/drupal-book';
}

/**
 * Implements template_preprocess_views_mini_pager()
 */
function dxpr_theme_preprocess_views_mini_pager(&$variables) {
  $variables['#attached']['library'][] = 'dxpr_theme/drupal-pager';
}

/**
 * Implements template_theme_suggestions_form_element_alter()
 */
function dxpr_theme_theme_suggestions_form_element_alter(array &$suggestions, array $variables, $hook) {
  if (isset($variables['element']['#type'])) {
    $id = str_replace("-", "_", $variables['element']['#type']);
    $suggestions[] = $hook . '__' . $id;
  }
}

/**
 * Implements hook_form_FORM_ID_alter().
 */
function dxpr_theme_form_search_form_alter(&$form, FormStateInterface $form_state, $form_id) {
  $form['basic']['#attributes']['class'] = [
    0 => 'form-group',
    1 => 'input-group',
  ];
  $form['basic']['keys']['#placeholder'] = $form['basic']['keys']['#title'];
  unset($form['basic']['keys']['#title']);
  $form['basic']['submit']['#icon'] = TRUE;
}

/**
 * Implements hook_form_FORM_ID_alter().
 */
function dxpr_theme_form_search_block_form_alter(&$form, FormStateInterface $form_state, $form_id) {
  $form['actions']['#type'] = 'submit';
  $form['keys']['#placeholder'] = 'Search';
  $form['actions']['#icon'] = TRUE;
  unset($form['actions']['submit']);
}

/**
 * Implements template_preprocess_input()
 */
function dxpr_theme_preprocess_input(&$variables) {
  $element = $variables['element'];
  if (isset($element['#icon'])) {
    $variables['icon'] = $element['#icon'];
  }
  if (isset($element['#id'])) {
    if ($element['#id'] === 'full_screen_search') {
      $variables['icon'] = TRUE;
    }
  }
  $variables['#attached']['library'][] = 'dxpr_theme/drupal-search';
}

/**
 * Generate web manifest file.
 */
function _dxpr_theme_generate_manifest($web_icons_media_id, $manifest_path) {
  $config = \Drupal::config('system.site');
  $name = $config->get('name') ?: 'Drupal Site';
  $manifest = [
    'name' => $name,
    'short_name' => mb_strimwidth($name, 0, 12, ''),
    'id' => '/',
    'start_url' => '/',
    'scope' => '/',
    'display' => 'standalone',
    'icons' => [],
  ];

  $media = Media::load($web_icons_media_id);
  if ($media && $media->hasField('field_media_image') && $media->field_media_image->entity) {
    $file_uri = $media->field_media_image->entity->getFileUri();

    // Add 192x192 icon.
    $image_style_192 = ImageStyle::load('android_chrome_192');
    if ($image_style_192) {
      $url_192 = $image_style_192->buildUrl($file_uri);
      $manifest['icons'][] = [
        'src' => \Drupal::service('file_url_generator')->transformRelative($url_192),
        'sizes' => '192x192',
        'type' => 'image/png',
        'purpose' => 'any maskable',
      ];
    }

    // Add 512x512 icon.
    if ($image_style_512 = ImageStyle::load('android_chrome_512')) {
      $url_512 = $image_style_512->buildUrl($file_uri);
      $manifest['icons'][] = [
        'src' => \Drupal::service('file_url_generator')->transformRelative($url_512),
        'sizes' => '512x512',
        'type' => 'image/png',
        'purpose' => 'any maskable',
      ];
    }
  }

  file_put_contents($manifest_path, json_encode($manifest, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES));
}

/**
 * Implements template_preprocess_status_messages().
 */
function dxpr_theme_preprocess_status_messages(&$variables) {
  $variables['#attached']['library'][] = 'dxpr_theme/drupal-status-message';
}

/**
 * Implements template_preprocess_details()
 */
function dxpr_theme_preprocess_details(&$variables) {
  $variables['attributes']['class'][] = 'form-item';
}

/**
 * Implements template_theme_suggestions_form_alter()
 */
function dxpr_theme_theme_suggestions_form_alter(array &$suggestions, array $variables) {
  $suggestions[] = 'form__' . $variables['element']['#form_id'];
}