template_preprocess

Adds a default set of helper variables for variable processors and templates. This comes in before any other preprocess function which makes it possible to be used in default theme implementations (non-overridden theme functions).

For more detailed information, see theme().

1 call to template_preprocess()

File

core/includes/theme.inc, line 2378

The theme system, which controls the output of Drupal.

Code

function template_preprocess(&$variables, $hook) {
  global $user;
  static $count = array();

  // Track run count for each hook to provide zebra striping.
  // See "template_preprocess_block()" which provides the same feature specific to blocks.
  $count[$hook] = isset($count[$hook]) && is_int($count[$hook]) ? $count[$hook] : 1;
  $variables['zebra'] = ($count[$hook] % 2) ? 'odd' : 'even';
  $variables['id'] = $count[$hook]++;

  // Tell all templates where they are located.
  $variables['directory'] = path_to_theme();

  // Initialize html class attribute for the current hook.
  $variables['classes_array'] = array(drupal_html_class($hook));

  // Merge in variables that don't depend on hook and don't change during a
  // single page request.
  // Use the advanced drupal_static() pattern, since this is called very often.
  static $drupal_static_fast;
  if (!isset($drupal_static_fast)) {
    $drupal_static_fast['default_variables'] = &drupal_static(__FUNCTION__);
  }
  $default_variables = &$drupal_static_fast['default_variables'];
  // Global $user object shouldn't change during a page request once rendering
  // has started, but if there's an edge case where it does, re-fetch the
  // variables appropriate for the new user.
  if (!isset($default_variables) || ($user !== $default_variables['user'])) {
    $default_variables = _template_preprocess_default_variables();
  }
  $variables += $default_variables;
}