_system_rebuild_theme_data

Versions

7

_system_rebuild_theme_data()

Helper function to scan and collect theme .info data and their engines.

Return value

An associative array of themes information.

Code

modules/system/system.module, line 2188

<?php
function _system_rebuild_theme_data() {
  $themes_info = &drupal_static(__FUNCTION__, array());

  if (empty($themes_info)) {
    // Find themes
    $themes = drupal_system_listing('/\.info$/', 'themes');
    // Find theme engines
    $engines = drupal_system_listing('/\.engine$/', 'themes/engines');

    // Set defaults for theme info.
    $defaults = array(
      'regions' => array(
        'sidebar_first' => 'Left sidebar',
        'sidebar_second' => 'Right sidebar',
        'content' => 'Content',
        'header' => 'Header',
        'footer' => 'Footer',
        'highlight' => 'Highlighted content',
        'help' => 'Help',
        'page_top' => 'Page top',
        'page_bottom' => 'Page bottom',
      ),
      'description' => '',
      'features' => array(
        'comment_user_picture',
        'comment_user_verification',
        'favicon',
        'logo',
        'name',
        'node_user_picture',
        'slogan',
        'main_menu',
        'secondary_menu',
      ),
      'screenshot' => 'screenshot.png',
      'php' => DRUPAL_MINIMUM_PHP,
    );

    $sub_themes = array();
    // Read info files for each theme
    foreach ($themes as $key => $theme) {
      $themes[$key]->filename = $theme->uri;
      $themes[$key]->info = drupal_parse_info_file($theme->uri) + $defaults;

      // Invoke hook_system_info_alter() to give installed modules a chance to
      // modify the data in the .info files if necessary.
      $type = 'theme';
      drupal_alter('system_info', $themes[$key]->info, $themes[$key], $type);

      if (!empty($themes[$key]->info['base theme'])) {
        $sub_themes[] = $key;
      }
      if (empty($themes[$key]->info['engine'])) {
        $filename = dirname($themes[$key]->uri) . '/' . $themes[$key]->name . '.theme';
        if (file_exists($filename)) {
          $themes[$key]->owner = $filename;
          $themes[$key]->prefix = $key;
        }
      }
      else {
        $engine = $themes[$key]->info['engine'];
        if (isset($engines[$engine])) {
          $themes[$key]->owner = $engines[$engine]->uri;
          $themes[$key]->prefix = $engines[$engine]->name;
          $themes[$key]->template = TRUE;
        }
      }

      // Give the stylesheets proper path information.
      $pathed_stylesheets = array();
      if (isset($themes[$key]->info['stylesheets'])) {
        foreach ($themes[$key]->info['stylesheets'] as $media => $stylesheets) {
          foreach ($stylesheets as $stylesheet) {
            $pathed_stylesheets[$media][$stylesheet] = dirname($themes[$key]->uri) . '/' . $stylesheet;
          }
        }
      }
      $themes[$key]->info['stylesheets'] = $pathed_stylesheets;

      // Give the scripts proper path information.
      $scripts = array();
      if (isset($themes[$key]->info['scripts'])) {
        foreach ($themes[$key]->info['scripts'] as $script) {
          $scripts[$script] = dirname($themes[$key]->uri) . '/' . $script;
        }
      }
      $themes[$key]->info['scripts'] = $scripts;
      // Give the screenshot proper path information.
      if (!empty($themes[$key]->info['screenshot'])) {
        $themes[$key]->info['screenshot'] = dirname($themes[$key]->uri) . '/' . $themes[$key]->info['screenshot'];
      }
    }

    // Now that we've established all our master themes, go back and fill in
    // data for subthemes.
    foreach ($sub_themes as $key) {
      $themes[$key]->base_themes = system_find_base_themes($themes, $key);
      // Don't proceed if there was a problem with the root base theme.
      if (!current($themes[$key]->base_themes)) {
        continue;
      }
      $base_key = key($themes[$key]->base_themes);
      foreach (array_keys($themes[$key]->base_themes) as $base_theme) {
        $themes[$base_theme]->sub_themes[$key] = $themes[$key]->info['name'];
      }
      // Copy the 'owner' and 'engine' over if the top level theme uses a
      // theme engine.
      if (isset($themes[$base_key]->owner)) {
        if (isset($themes[$base_key]->info['engine'])) {
          $themes[$key]->info['engine'] = $themes[$base_key]->info['engine'];
          $themes[$key]->owner = $themes[$base_key]->owner;
          $themes[$key]->prefix = $themes[$base_key]->prefix;
        }
        else {
          $themes[$key]->prefix = $key;
        }
      }
    }

    $themes_info = $themes;
  }

  return $themes_info;
}
?>

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