function advanced_forum_theme_registry_alter in Advanced Forum 6

Same name and namespace in other branches

1. 6.2 advanced_forum.module \advanced_forum_theme_registry_alter()
2. 7.2 advanced_forum.module \advanced_forum_theme_registry_alter()

Implementation of hook_theme_registry_alter().

File

./advanced_forum.module, line 89

Enables the look and feel of other popular forum software.

Code

function advanced_forum_theme_registry_alter(&$theme_registry) {

  // Kill the next/previous forum topic navigation links.
  if (!variable_get('advanced_forum_use_topic_navigation', FALSE)) {
    foreach ($theme_registry['forum_topic_navigation']['preprocess functions'] as $key => $value) {
      if ($value == 'template_preprocess_forum_topic_navigation') {
        unset($theme_registry['forum_topic_navigation']['preprocess functions'][$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 designated styles
  // --- directory for advanced forum, and finally in the advanced forum naked
  // --- style as a base style.
  // Affected templates
  $templates = array(
    'node',
    'comment',
    'comment_wrapper',
    'forums',
    'forum_list',
    'forum_topic_list',
    'forum_icon',
    'forum_submitted',
    'author_pane',
    'advf_forum_statistics',
    'advanced_forum_topic_legend',
    'advanced_forum_forum_legend',
    'advanced_forum_topic_header',
  );

  // Find all our ancestor themes and put them in an array.
  global $theme;
  $themes = list_themes();
  $ancestor_paths = array();
  $ancestor = $theme;
  while ($ancestor && isset($themes[$ancestor]->base_theme)) {
    array_unshift($ancestor_paths, dirname($themes[$themes[$ancestor]->base_theme]->filename));
    $ancestor = $themes[$ancestor]->base_theme;
  }
  $current_style = advanced_forum_path_to_style();
  $naked_path = drupal_get_path('module', 'advanced_forum') . '/styles/naked';
  foreach ($templates as $template) {

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

      // If there was a path in there, store it.
      $existing_path = array_shift($theme_registry[$template]['theme paths']);

      // Slide the paths we are adding in before the existing one.
      if ($naked_path == $current_style) {

        // The style is already naked, so no need to add it twice.
        array_unshift($theme_registry[$template]['theme paths'], $existing_path, $current_style);
      }
      else {

        // Style is not naked so slip naked in as a default style.
        array_unshift($theme_registry[$template]['theme paths'], $existing_path, $naked_path, $current_style);
      }

      // If there are any ancestor paths (ie: we are in a subtheme, add those)
      foreach ($ancestor_paths as $ancestor_path) {
        $theme_registry[$template]['theme paths'][] = $ancestor_path;
      }

      // Put the active theme's path last since that takes precidence.
      $theme_registry[$template]['theme paths'][] = advanced_forum_path_to_theme();
    }
  }
}