function advanced_forum_theme_registry_alter in Advanced Forum 7.2

Same name and namespace in other branches

1. 6.2 advanced_forum.module \advanced_forum_theme_registry_alter()
2. 6 advanced_forum.module \advanced_forum_theme_registry_alter()

Implements hook_theme_registry_alter().

File

./advanced_forum.module, line 236

Enables the look and feel of other popular forum software.

Code

function advanced_forum_theme_registry_alter(&$theme_registry) {
  advanced_forum_load_style_includes();

  // Don't let core do its basic preprocess for forums, as we want to do
  // other stuff now.
  if (isset($theme_registry['forums']['preprocess functions'])) {
    foreach ($theme_registry['forums']['preprocess functions'] as $key => $value) {
      if ($value == 'template_preprocess_forums') {
        unset($theme_registry['forums']['preprocess functions'][$key]);
      }
    }
  }

  // We duplicate all of core's forum list preprocessing so no need to run
  // it twice. Running twice also causes problems with & in forum name.
  if (isset($theme_registry['forum_list']['preprocess functions'])) {
    foreach ($theme_registry['forum_list']['preprocess functions'] as $key => $value) {
      if ($value == 'template_preprocess_forum_list') {
        unset($theme_registry['forum_list']['preprocess functions'][$key]);
      }
    }
  }

  // Views handles the topic list pages so remove the core template preprocess.
  if (isset($theme_registry['forum_topic_list']['preprocess functions'])) {
    foreach ($theme_registry['forum_topic_list']['preprocess functions'] as $key => $value) {
      if ($value == 'template_preprocess_forum_topic_list') {
        unset($theme_registry['forum_topic_list']['preprocess functions'][$key]);
      }
    }
  }

  // --- The following section manipulates the theme registry so the .tpl files
  // --- for the given templates can be found first in the (sub)theme directory
  // --- then in ancestor themes, if any, then in the active style directory
  // --- for advanced forum or any ancestor styles.
  // Affected templates.
  $templates = array(
    'node',
    'comment',
    'comment_wrapper',
    'forums',
    'forum_list',
    'forum_topic_list',
    'forum_icon',
    'forum_submitted',
    'author_pane',
  );

  // Get the sequence of styles to look in for templates.
  $lineage = advanced_forum_style_lineage();
  if (!array_key_exists('naked', $lineage)) {

    // Add naked in at the end of the line to prevent problems if a style
    // doesn't include all needed templates.
    $lineage['naked'] = drupal_get_path('module', 'advanced_forum') . '/styles/naked';
  }

  // Get theme engine extension.
  global $theme_engine;
  $extension = '.tpl.php';
  if (isset($theme_engine)) {
    $extension_function = $theme_engine . '_extension';
    if (function_exists($extension_function)) {
      $extension = $extension_function();
    }
  }
  foreach ($templates as $template) {

    // Sanity check in case the template is not being used.
    if (!empty($theme_registry[$template])) {

      // There are preprocess functions to add, so figure out where we want to add
      // them.
      if (!empty($preprocess)) {
        $position = 0;
        foreach ($theme_registry[$template]['preprocess functions'] as $function) {
          $position++;

          // If we see either of these items, that means we can place our
          // preprocess functions after this.
          if (substr($function, 0, 25) == 'advanced_forum_preprocess' || substr($function, 0, 34) == 'template_preprocess_advanced_forum') {
            break;
          }
        }

        // Add in our new preprocess functions:
        if (isset($theme_registry[$template]['preprocess functions'])) {
          array_splice($theme_registry[$template]['preprocess functions'], $position, 0, $preprocess);
        }
      }
    }
  }

  // Temp workaround.
  if (isset($theme_registry['views_view__advanced_forum_topic_list']['preprocess functions'])) {
    array_splice($theme_registry['views_view__advanced_forum_topic_list']['preprocess functions'], 1, 0, 'template_preprocess_views_view');
  }
  if (isset($theme_registry['views_view__advanced_forum_group_topic_list']['preprocess functions'])) {
    array_splice($theme_registry['views_view__advanced_forum_group_topic_list']['preprocess functions'], 1, 0, 'template_preprocess_views_view');
  }
}