iastate_theme.theme

<?php

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

/**
 * Implements template_preprocess_html().
 * 
 */
function iastate_theme_preprocess_html(&$variables) {

  /* Add node-id_ and node-type_ classes to body */
  $node = \Drupal::request()->attributes->get('node');
  if ($node instanceof NodeInterface) {
    $variables['attributes']['class'][] = 'node-id_' . $node->id();
  }
  if (isset($variables['node_type'])) {
    $variables['attributes']['class'][] = 'node-type_' . $variables['node_type'];
  }

  /* Add views classes to body */
  $route = \Drupal::routeMatch()->getRouteObject();
  $view_id = $route->getDefault('view_id');
  $display_id = $route->getDefault('display_id');

  if ($view_id) {
    $variables['attributes']['class'][] = 'view_' . $view_id;
    $variables['attributes']['class'][] = 'view-display_' . $display_id;
  }
}

/*
 * Implements template_preprocess_menu_local_task().
 *
 * Add Bootstrap 4 classes to links in tabs 
 */

function iastate_theme_preprocess_menu_local_task(&$variables) {
  $variables['link']['#attributes']['class'][] = 'nav-link';
  if (!empty($variables['element']['#active'])) {
    $variables['link']['#attributes']['class'][] = 'active';
  }
}

/*
 * Implements template_preprocess_views_view().
 *
 * Add Bootstrap 4 classes to views buttons 
 */

function iastate_theme_preprocess_views_view(&$variables) {
  $variables['more']['#options']['attributes']['class'] = array('btn', 'btn-sm', 'btn-outline-danger');
}

/*
 * Implements template_preprocess_menu_local_action().
 *
 * Add Bootstrap 4 classes to local actions 
 */

function iastate_theme_preprocess_menu_local_action(&$variables) {
  $variables['link']['#options']['attributes']['class'][] = 'btn';
  $variables['link']['#options']['attributes']['class'][] = 'btn-sm';
  $variables['link']['#options']['attributes']['class'][] = 'btn-outline-info';
}

/*
 * Implements template_preprocess_links().
 *
 * Add Bootstrap 4 classes to Read More and Comments links
 */

function iastate_theme_preprocess_links(&$variables) {
  if (!empty($variables['links']['node-readmore']['link'])) {
    $variables['links']['node-readmore']['link']['#options']['attributes']['class'][] = 'btn btn-sm btn-outline-danger';
  }
  if (!empty($variables['links']['comment-comments']['link'])) {
    $variables['links']['comment-comments']['link']['#options']['attributes']['class'][] = 'btn btn-sm btn-outline-danger';
  }
  if (!empty($variables['links']['comment-add']['link'])) {
    $variables['links']['comment-add']['link']['#options']['attributes']['class'][] = 'btn btn-sm btn-outline-success';
  }
  if (!empty($variables['links']['comment-delete']['link'])) {
    $variables['links']['comment-delete']['link']['#options']['attributes']['class'][] = 'btn btn-sm btn-outline-danger';
  }
  if (!empty($variables['links']['comment-edit']['link'])) {
    $variables['links']['comment-edit']['link']['#options']['attributes']['class'][] = 'btn btn-sm btn-outline-info';
  }
  if (!empty($variables['links']['comment-reply']['link'])) {
    $variables['links']['comment-reply']['link']['#options']['attributes']['class'][] = 'btn btn-sm btn-outline-success'; 
  }
    /* Book */ 
  if (!empty($variables['links']['book_printer']['link'])) {
    $variables['links']['book_printer']['link']['#options']['attributes']['class'][] = 'btn btn-sm btn-outline-info';
  }
  if (!empty($variables['links']['book_add_child']['link'])) {
    $variables['links']['book_add_child']['link']['#options']['attributes']['class'][] = 'btn btn-sm btn-outline-success';
  }
}

/*
 * Implements theme_form_alter().
 *
 * Add ISU Theme class to Site Navbar search form
 */
function iastate_theme_form_alter(array &$form, FormStateInterface $form_state, $form_id) {
  if( $form_id == 'search_block_form') {
    $form['actions']['submit']['#attributes']['class'][] = 'isu-search__search-btn';
  }
}

/*
 * Implements template_preprocess_field_multiple_value_form().
 * 
 * Add Bootstrap 4 table classes to the multipe value field tables.
 */

function iastate_theme_preprocess_field_multiple_value_form(&$variables) {
   $variables['table']['#attributes']['class'][] = 'table table-bordered isu-multiple-value-form-table';
   
  if (!empty($variables['table']['#header'][0]['data']['#prefix']) && $variables['table']['#header'][0]['data']['#prefix'] == "<h4 class=\"label\">") {
    unset($variables['table']['#header'][0]['data']['#prefix'], $variables['table']['#header'][0]['data']['#suffix']);
  }
}

/*
 * Implements template_preprocess_file_widget_multiple().
 *
 * Add Bootstrap 4 table classes to multiple file/image field tables.
 */

function iastate_theme_preprocess_file_widget_multiple(&$variables) {
  $variables['table']['#attributes']['class'][] = 'table table-bordered isu-file-widget-multiple-table';
}

/*
 * Implements theme_preprocess()
 *
 * Allow is_front to be used on other templates 
 */

function iastate_theme_preprocess(&$variables, $hook) {
  try {
    $variables['is_front'] = \Drupal::service('path.matcher')->isFrontPage();
  }
  catch (Exception $e) {
    $variables['is_front'] = FALSE;
  }
  // Ensure the cache varies correctly (new in Drupal 8.3).
  $variables['#cache']['contexts'][] = 'url.path.is_front';

  $variables['iastate_unit_name'] = theme_get_setting('iastate_unit_name');
  $variables['iastate_unit_url'] = theme_get_setting('iastate_unit_url');

  // Check to see if it's an edit/add/ or delete node page
  $route_name = \Drupal::routeMatch()->getRouteName();
  
  if ($route_name == 'entity.node.edit_form') {
    $variables['is_node_edit'] = 'edit';
  }
  elseif ($route_name == 'node.add') {
    $variables['is_node_add'] = 'add';
  }
  elseif ($route_name == 'entity.node.delete_form') {
    $variables['is_node_delete'] = 'delete';
  }

  $variables['iastate_copyright_hidden'] = theme_get_setting('iastate_copyright_hidden');
}

/*
 * Implements theme_preprocess_block().
 *
 */

function iastate_theme_preprocess_block(&$variables) {
  // Make theme settings available in block templates
  $variables['iastate_logo_alt'] = theme_get_setting('iastate_logo_alt');
  $variables['iastate_logo_width'] = theme_get_setting('iastate_logo_width');
  $variables['iastate_logo_height'] = theme_get_setting('iastate_logo_height');
  $variables['iastate_logo_alt'] = theme_get_setting('iastate_logo_alt');
  $variables['is_default_logo'] = \Drupal::config('iastate_theme.settings')->get('logo.use_default');
  $variables['iastate_logo_url'] = theme_get_setting('iastate_logo_url');

  // Make block type available in block templates
  if ($variables['elements']['#base_plugin_id'] == 'block_content') {
    $blockType = strtr($variables['content']['#block_content']->bundle(), '_', '-');
    $variables['attributes']['class'][] = 'block-type_' . $blockType;
  }
}

/*
 * Implements theme_preprocess_page().
 *
 * Make theme settings available in page templates
 */

function iastate_theme_preprocess_page(&$variables) {
  $variables['isu_navbar'] = theme_get_setting('isu_navbar');
  $variables['gold_border_hidden'] = theme_get_setting('gold_border_hidden');
  
  $variables['theme_path'] = base_path() . $variables['directory'];

  $variables['iastate_footer_logo_path'] = theme_get_setting('iastate_footer_logo_path');
  $variables['iastate_footer_logo_url'] = theme_get_setting('iastate_footer_logo_url');
  $variables['iastate_footer_logo_alt'] = theme_get_setting('iastate_footer_logo_alt');
  $variables['iastate_footer_logo_width'] = theme_get_setting('iastate_footer_logo_width');
  $variables['iastate_footer_logo_height'] = theme_get_setting('iastate_footer_logo_height');

  $variables['iastate_contact_title'] = theme_get_setting('iastate_contact_title');
  $variables['iastate_contact_address'] = theme_get_setting('iastate_contact_address');
  $variables['iastate_contact_email'] = theme_get_setting('iastate_contact_email');
  $variables['iastate_contact_phone'] = theme_get_setting('iastate_contact_phone');
  $variables['iastate_contact_fax'] = theme_get_setting('iastate_contact_fax');

  $variables['iastate_associate1_title'] = theme_get_setting('iastate_associate1_title');
  $variables['iastate_associate1_url'] = theme_get_setting('iastate_associate1_url');
  $variables['iastate_associate2_title'] = theme_get_setting('iastate_associate2_title');
  $variables['iastate_associate2_url'] = theme_get_setting('iastate_associate2_url');
  $variables['iastate_associate3_title'] = theme_get_setting('iastate_associate3_title');
  $variables['iastate_associate3_url'] = theme_get_setting('iastate_associate3_url');
  $variables['iastate_associate4_title'] = theme_get_setting('iastate_associate4_title');
  $variables['iastate_associate4_url'] = theme_get_setting('iastate_associate4_url');
  $variables['iastate_associate5_title'] = theme_get_setting('iastate_associate5_title');
  $variables['iastate_associate5_url'] = theme_get_setting('iastate_associate5_url');
  $variables['iastate_associate6_title'] = theme_get_setting('iastate_associate6_title');
  $variables['iastate_associate6_url'] = theme_get_setting('iastate_associate6_url');

  $variables['iastate_social1_title'] = theme_get_setting('iastate_social1_title');
  $variables['iastate_social1_url'] = theme_get_setting('iastate_social1_url');
  $variables['iastate_social2_title'] = theme_get_setting('iastate_social2_title');
  $variables['iastate_social2_url'] = theme_get_setting('iastate_social2_url');
  $variables['iastate_social3_title'] = theme_get_setting('iastate_social3_title');
  $variables['iastate_social3_url'] = theme_get_setting('iastate_social3_url');
  $variables['iastate_social4_title'] = theme_get_setting('iastate_social4_title');
  $variables['iastate_social4_url'] = theme_get_setting('iastate_social4_url');
  $variables['iastate_social5_title'] = theme_get_setting('iastate_social5_title');
  $variables['iastate_social5_url'] = theme_get_setting('iastate_social5_url');
  $variables['iastate_social6_title'] = theme_get_setting('iastate_social6_title');
  $variables['iastate_social6_url'] = theme_get_setting('iastate_social6_url');
  $variables['iastate_social7_title'] = theme_get_setting('iastate_social7_title');
  $variables['iastate_social7_url'] = theme_get_setting('iastate_social7_url');
}