drupalcamp_theme.theme

<?php

/**
 * @file
 * Drupal camp theme thing.
 */

use Drupal\Core\Url;
use Drupal\image\Entity\ImageStyle;
use Drupal\views\ViewExecutable;

/**
 * Implements hook_preprocess_HOOK().
 */
function drupalcamp_theme_preprocess_block(&$variables) {
  if ($variables['base_plugin_id'] == 'system_branding_block') {
    if ($variables['content']['site_logo']['#access'] && $variables['content']['site_logo']['#uri']) {
      $variables['site_logo'] = str_replace('.svg', '.png', $variables['content']['site_logo']['#uri']);
    }
  }
}

/**
 * Implements hook_preprocess_HOOK().
 */
function drupalcamp_theme_preprocess_node(&$variables) {
  /** @var \Drupal\node\Entity\Node $node */
  $node = $variables['node'];
  if ($node->bundle() == 'session' && $variables['view_mode'] == 'full') {
    // Attach also the user display under the node.
    $renderer = \Drupal::entityTypeManager()
      ->getViewBuilder('user');
    $variables['content']['user'] = $renderer->view($node->getOwner());
    $variables['content']['user']['#weight'] = 200;
    $variables['content']['user']['#prefix'] = '<h4>' . t('About the speaker') . '</h4>';
  }
  if ($node->bundle() == 'sponsor') {
    // Add the link URL as a variable.
    $url = $node->field_sponsor_url->first()->getValue();
    $variables['sponsor_url'] = $url['uri'];
    $variables['sponsor_image'] = $variables['content']['field_sponsor_logo'];
  }
  if ($node->bundle() == 'featured_speaker') {
    _drupalcamp_theme_create_featured_speaker_variables($variables);
  }
}

/**
 * Creates some variables.
 */
function _drupalcamp_theme_create_featured_speaker_variables(&$variables) {
  /** @var \Drupal\node\Entity\Node $node */
  $node = $variables['node'];
  // Make some variables available.
  $variables['user_image'] = '';
  $variables['name'] = '';
  $variables['intro'] = '';
  $variables['user_url'] = '';
  // Try to load the user in question.
  if (!$node->field_speaker || $node->field_speaker->isEmpty()) {
    return;
  }
  /** @var \Drupal\user\Entity\User $user */
  $user = $node->field_speaker->entity;
  $variables['user_url'] = Url::fromRoute('entity.user.canonical', [
    'user' => $user->id(),
  ])->toString();
  $variables['name'] = $node->label();
  // Get the picture, if any.
  if ($user->field_user_picture && !$user->field_user_picture->isEmpty()) {
    /** @var \Drupal\file\Entity\File $pic */
    $pic = $user->field_user_picture->entity;
    $variables['user_image'] = [
      '#type' => 'inline_template',
      '#template' => '<img src="{{ image }} " />',
      '#context' => [
        'image' => ImageStyle::load('square')->buildUrl($pic->getFileUri()),
      ],
    ];
  }
  if ($node->field_short_intro && !$node->field_short_intro->isEmpty()) {
    $variables['intro'] = $node->field_short_intro->first()->getString();
  }

}

/**
 * Implements hook_preprocess_HOOK().
 *
 * Add column padding to sponsor blocks so they are centered.
 */
function drupalcamp_theme_preprocess_views_view_unformatted(&$vars) {
  /** @var \Drupal\views\ViewExecutable $view */
  $view = $vars['view'];
  if ($view->id() == 'sessions') {
    drupalcamp_theme_preprocess_sessions_view($vars);
  }
  if ($view->id() != 'sponsor_blocks') {
    return;
  }
  if (empty($vars['rows'])) {
    return;
  }
  /** @var \Drupal\views\Plugin\views\display\DisplayPluginBase $display */
  $display = $view->getDisplay();
  $display_id = $display->display['id'];
  $max_in_row = 2;
  $padding = 2;
  $divider = 1;
  switch ($display_id) {
    case 'block_2':
      $max_in_row = 4;
      break;

    case 'block_3';
      $max_in_row = 8;
      $divider = 2;
      break;
  }

  // See how many results there are, and then how much column padding we should
  // add.
  $num_results = count($view->result);
  if ($num_results !== $max_in_row) {
    $padding = (int) ($padding + (($max_in_row - $num_results) / $divider));
  }
  /** @var \Drupal\Core\Template\Attribute $attr */
  $attr = $vars['rows'][0]['attributes'];
  $attr->addClass('col-md-offset-' . $padding);
}

/**
 * Fix day headers on the rows.
 */
function drupalcamp_theme_preprocess_sessions_view(&$vars) {
  // See if this is the first session of the day.
  /** @var \Drupal\views\ViewExecutable $view */
  $view = $vars['view'];
  $headings = drupalcamp_theme_get_session_headings($view);
  foreach ($vars["rows"] as $delta => $row) {
    if (!empty($headings[$delta])) {
      $vars['pre_title'] = $headings[$delta];
    }
  }
}

/**
 * Helper.
 */
function drupalcamp_theme_get_session_headings(ViewExecutable $view) {
  $data = &drupal_static(__FUNCTION__);
  if (isset($data)) {
    return $data;
  }
  $headings = [];
  $last_heading = NULL;
  foreach ($view->result as $delta => $row) {
    $date = strtotime($row->node__field_session_time_field_session_time_value);
    if (!$date) {
      continue;
    }
    $potential_heading = format_date($date, 'custom', 'l d.m.Y');
    if ($potential_heading != $last_heading) {
      $last_heading = $potential_heading;
      $headings[$delta] = $potential_heading;
    }
  }
  $data = $headings;
  return $headings;
}

/**
 * Implements hook_preprocess_HOOK().
 */
function drupalcamp_theme_preprocess_page(&$variables) {
  $variables["page"]["footer"]['media_partner'] = [
    '#markup' => '<section class="media-partner"><h2>' . t('Media partner') . '</h2><p><a href="http://www.theweeklydrop.com/"><img src="/themes/contrib/drupalcamp_theme/images/weekly.png" /></a></p></section>',
  ];
}