edlp_d8/sites/all/themes/custom/edlptheme/edlptheme.theme

<?php

/**
 * @file
 * Functions to support theming in the edlp theme.
 */

use Drupal\Core\Url;
use Drupal\Core\Link;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Template\Attribute;
use Drupal\Component\Utility\Unicode;
use Drupal\Core\Render\Element;


/**
 * Implements hook_page_attachments().
 * @param array $attachments
 */
 // this does not work with themes
// function edlptheme_page_attachments(array &$attachments) {
//   dpm('edlptheme_page_attachments', $attachments);
// }



function edlptheme_preprocess_page(&$vars){
  // dsm($vars, 'vars');
}

function edlptheme_preprocess_node(&$vars){
  $node = $vars['elements']['#node'];
  $options = ['absolute' => TRUE];
  $url = Url::fromRoute('entity.node.canonical', ['node' => $node->id()], $options);
  $system_path = $url->getInternalPath();
  $vars['link_attributes'] = new Attribute(array(
    'data-drupal-link-system-path' => $system_path=='' ? '<front>' : $system_path
  ));
}

/**
 * Implements hook_form_alter
 */
function edlptheme_form_user_login_form_alter(&$form, FormStateInterface $form_state, $form_id) {
  // dpm($form_id, 'form_id');
  // dpm($form, 'form');
  $form['name']['#attributes']['placeholder'] = (string) $form['name']['#title'];
  unset($form['name']['#title']);
  $form['pass']['#attributes']['placeholder'] = (string) $form['pass']['#title'];
  unset($form['pass']['#title']);
}


function edlptheme_preprocess_edlp_home(&$vars){
  foreach($vars['nodes'] as &$node){
    switch($node['vm']){
      case "image_2_columns":
        $cols = 4;
        break;
      case "image_1_columns":
        $cols = 2;
        break;
      case "text_1_column":
        $cols = 2;
        break;
      default:
        $cols = 2;
    };
    $node['cols'] = $cols;
  }
}
function edlptheme_preprocess_edlp_productions(&$vars){
  foreach($vars['nodes'] as &$node){
    switch($node['vm']){
      case "image_2_columns":
        $cols = 4;
        break;
      case "image_1_columns":
        $cols = 2;
        break;
      case "text_1_column":
        $cols = 2;
        break;
    };
    $node['cols'] = $cols;
  }
  // dpm($vars);
}

function edlptheme_preprocess_node__enregistrement__index(&$vars){
  $node = $vars['elements']['#node'];
  $options = ['absolute' => TRUE];
  $url = Url::fromRoute('entity.node.canonical', ['node' => $node->id()], $options);
  $system_path = $url->getInternalPath();
  // get the audio file url
  $field_son_values = $node->get('field_son')->getValue();
  $son_fid = count($field_son_values) ? $field_son_values[0]['target_id'] : "";
  $son_file = \Drupal\file\Entity\File::load($son_fid);
  $son_url = null;
  if($son_file){
    $son_uri = $son_file->getFileUri();
    $son_url = file_create_url($son_uri);
  }

  $vars['link_attributes'] = new Attribute(array(
    'data-drupal-link-system-path' => $system_path=='' ? '<front>' : $system_path,
    'audio_url' => $son_url,
    'nid' => $node->id(),
    'class' => array('audio-link', 'ajax-link')
  ));
  // dpm($vars['link_attributes']);
}

function edlptheme_preprocess_node__enregistrement__search_index(&$vars){
  $node = $vars['elements']['#node'];
  $options = ['absolute' => TRUE];
  $url = Url::fromRoute('entity.node.canonical', ['node' => $node->id()], $options);
  $system_path = $url->getInternalPath();
  // get the audio file url
  $field_son_values = $node->get('field_son')->getValue();
  $son_fid = count($field_son_values) ? $field_son_values[0]['target_id'] : "";
  $son_file = \Drupal\file\Entity\File::load($son_fid);
  $son_url = null;
  if($son_file){
    $son_uri = $son_file->getFileUri();
    $son_url = file_create_url($son_uri);
  }

  $vars['link_attributes'] = new Attribute(array(
    'data-drupal-link-system-path' => $system_path=='' ? '<front>' : $system_path,
    'audio_url' => $son_url,
    'nid' => $node->id(),
    'class' => array('audio-link', 'ajax-link')
  ));
  // dpm($vars['link_attributes']);
}

function edlptheme_preprocess_node__enregistrement__compo(&$vars){
  $node = $vars['elements']['#node'];
  $options = ['absolute' => TRUE];
  $url = Url::fromRoute('entity.node.canonical', ['node' => $node->id()], $options);
  $system_path = $url->getInternalPath();
  // get the audio file url
  $field_son_values = $node->get('field_son')->getValue();
  $son_fid = count($field_son_values) ? $field_son_values[0]['target_id'] : "";
  $son_file = \Drupal\file\Entity\File::load($son_fid);
  $son_url = null;
  if($son_file){
    $son_uri = $son_file->getFileUri();
    $son_url = file_create_url($son_uri);
  }

  $vars['link_attributes'] = new Attribute(array(
    'data-drupal-link-system-path' => $system_path=='' ? '<front>' : $system_path,
    'audio_url' => $son_url,
    'nid' => $node->id(),
    'class' => array('audio-link', 'ajax-link')
  ));

  // dpm($vars);
  $title = $vars['label'][0]['#context']['value'];
  $vars['label'][0]['#context']['value'] = Unicode::truncate($title, 25, true, true);
  // dpm($vars['link_attributes']);
}

function edlptheme_preprocess_node__enregistrement__player_cartel(&$vars){
  // dpm($vars);
  $node = $vars['node'];

  $vars['col_left'] = false;
  $vars['col_right'] = false;

  // if transcript not empty
  $transcript = $node->get('field_transcript_vo');
  if(!$transcript->isEmpty()){
    $vars['col_left'] = true;
    $url = Url::fromRoute('entity.node.canonical', ['node'=>$node->id()]);
    $url->setOptions(array(
      'attributes' => array(
        'class' => ['link-transcript', 'ajax-link'],
        'viewmode'=>'transcript',
        'data-drupal-link-system-path' => $url->getInternalPath()
      )
    ));
    $vars['link_transcript'] = Link::fromTextAndUrl(t("Lire le text."), $url);
  }

  // if article not empty
  $article = $node->get('body');
  if(!$article->isEmpty()){
    $vars['col_left'] = true;
    $url = Url::fromRoute('entity.node.canonical', ['node'=>$node->id()]);
    $url->setOptions(array(
      'attributes' => array(
        'class' => ['link-article', 'ajax-link'],
        'viewmode'=>'article',
        'data-drupal-link-system-path' => $url->getInternalPath()
      )
    ));
    $vars['link_article'] = Link::fromTextAndUrl(t("Lire l'article."), $url);
  }

  // relations (defined in edlp_corpus.module)
  if(isset($vars['content']['relations'])){
    // dpm($relations);
    $vars['col_right'] = true;
  }

  if($vars['col_left'] || $vars['col_right']){
    $vars['second_cartel'] = true;
  }
}


/**
 * Prepares variables for image formatter templates.
 *
 * Default template: image-formatter.html.twig.
 *
 * @param array $variables
 *   An associative array containing:
 *   - item: An ImageItem object.
 *   - item_attributes: An optional associative array of html attributes to be
 *     placed in the img tag.
 *   - image_style: An optional image style.
 *   - url: An optional \Drupal\Core\Url object.
 */
function edlptheme_preprocess_image_formatter(&$vars){
  if(isset($vars['url'])){
    $system_path = $vars['url']->getInternalPath();
    $vars['link_attributes'] = new Attribute(array(
      'data-drupal-link-system-path' => $system_path=='' ? '<front>' : $system_path,
      'class' => array('ajax-link')
    ));
    // dpm($vars);
  }
}

function edlptheme_preprocess_links__language_block(&$vars){
  // dpm($vars);
  foreach ($vars['links'] as $lang_code => $link) {
    $vars['links'][$lang_code]['text'] = $lang_code;
    $vars['links'][$lang_code]['link']['#title'] = $lang_code;
  }
}