zen-internals/template.theme-registry.inc

   1 <?php
   2 // $Id$
   3
   4 /**
   5  * @file
   6  * Contains infrequently used theme registry build functions.
   7  */
   8
   9 /**
  10  * Implements HOOK_theme().
  11  *
  12  * We are simply using this hook as a convenient time to do some related work.
  13  */
  14 function _zen_theme(&$existing, $type, $theme, $path) {
  15   // Compute the conditional stylesheets.
  16   if (!module_exists('conditional_styles')) {
  17     include_once './' . _zen_path() . '/zen-internals/template.conditional-styles.inc';
  18     // _conditional_styles_theme() only needs to be run once.
  19     if ($theme == 'zen') {
  20       _conditional_styles_theme($existing, $type, $theme, $path);
  21     }
  22   }
  23
  24   // Since we are rebuilding the theme registry and the theme settings' default
  25   // values may have changed, make sure they are saved in the database properly.
  26   zen_theme_get_default_settings($theme);
  27
  28   // If we are auto-rebuilding the theme registry, warn about the feature.
  29   // Always display the warning in the admin section, otherwise limit to three
  30   // warnings per hour.
  31   if (function_exists('user_access') && user_access('administer site configuration') && theme_get_setting('zen_rebuild_registry') && $theme == $GLOBALS['theme'] && (arg(0) == 'admin' || flood_is_allowed($GLOBALS['theme'] . '_rebuild_registry_warning', 3))) {
  32     flood_register_event($GLOBALS['theme'] . '_rebuild_registry_warning');
  33     drupal_set_message(t('For easier theme development, the theme registry is being rebuilt on every page request. It is <em>extremely</em> important to <a href="!link">turn off this feature</a> on production websites.', array('!link' => url('admin/build/themes/settings/' . $GLOBALS['theme']))), 'warning', FALSE);
  34   }
  35
  36   // Keep track of all the base themes.
  37   static $base_themes = array();
  38   $base_themes[] = $theme;
  39
  40   // Add a "process" phase to come after the "preprocess" functions.
  41   if ($type == 'theme') {
  42     foreach (array_keys($existing) as $hook) {
  43       // Normally, preprocess functions are added to the registry after
  44       // HOOK_theme() returns, but if we add them first, they won't be re-added.
  45       if (function_exists($theme . '_preprocess')) {
  46         $existing[$hook]['preprocess functions'][] = $theme . '_preprocess';
  47       }
  48       if (function_exists($theme . '_preprocess_' . $hook)) {
  49         $existing[$hook]['preprocess functions'][] = $theme . '_preprocess_' . $hook;
  50       }
  51       // Add base theme process functions.
  52       foreach ($base_themes as $base_theme) {
  53         if (function_exists($base_theme . '_process')) {
  54           $existing[$hook]['preprocess functions'][] = $base_theme . '_process';
  55         }
  56         if (function_exists($base_theme . '_process_' . $hook)) {
  57           $existing[$hook]['preprocess functions'][] = $base_theme . '_process_' . $hook;
  58         }
  59       }
  60       // Add the theme process functions.
  61       if (function_exists($theme . '_process')) {
  62         $existing[$hook]['preprocess functions'][] = $theme . '_process';
  63       }
  64       if (function_exists($theme . '_process_' . $hook)) {
  65         $existing[$hook]['preprocess functions'][] = $theme . '_process_' . $hook;
  66       }
  67     }
  68   }
  69
  70   // Manipulations only to be done by the base theme.
  71   if ($theme == 'zen') {
  72     // Insert zen_show_blocks_discovery() before template_preprocess_page().
  73     $existing['page']['preprocess functions'] = array_merge(array('zen_show_blocks_discovery'), $existing['page']['preprocess functions']);
  74
  75     // The base theme registers region.tpl.php.
  76     return array(
  77       'region' => array(
  78         'arguments' => array('elements' => NULL),
  79         'pattern' => 'region_',
  80         'path' => drupal_get_path('theme', 'zen') . '/templates',
  81         'template' => 'region',
  82         // We manually register the preprocess and process functions, since
  83         // Drupal won't auto-register template_preprocess or process functions.
  84         'preprocess functions' => array(
  85           'template_preprocess',
  86           'zen_preprocess',
  87           'zen_preprocess_region',
  88           'zen_process',
  89         ),
  90       ),
  91     );
  92   }
  93
  94   // Else return nothing.
  95   return array();
  96 }
  97
  98 /**
  99  * Return the theme settings' default values from the .info and save them into the database.
 100  *
 101  * @param $theme
 102  *   The name of theme.
 103  */
 104 function zen_theme_get_default_settings($theme) {
 105   $themes = list_themes();
 106
 107   // Get the default values from the .info file.
 108   $defaults = !empty($themes[$theme]->info['settings']) ? $themes[$theme]->info['settings'] : array();
 109
 110   if (!empty($defaults)) {
 111     // Merge the defaults with the theme settings saved in the database.
 112     $settings = array_merge($defaults, variable_get('theme_'. $theme .'_settings', array()));
 113     // Save the settings back to the database.
 114     variable_set('theme_'. $theme .'_settings', $settings);
 115     // If the active theme has been loaded, force refresh of Drupal internals.
 116     if (!empty($GLOBALS['theme_key'])) {
 117       theme_get_setting('', TRUE);
 118     }
 119   }
 120
 121   // Return the default settings.
 122   return $defaults;
 123 }