function pagestyle_check in Page Style 5

Same name and namespace in other branches

1. 6 pagestyle.module \pagestyle_check()
2. 7 pagestyle.module \pagestyle_check()

Check the cookie "pagestyle" value of changing (bye JavaScript) for anonymus user.

See also

pagestyle_set()

1 call to pagestyle_check()

pagestyle_init in ./pagestyle.module

Implement hook_init().

File

./pagestyle.module, line 121

Display a style changer on the page and in the browser menue for a better web accessibility.

Code

function pagestyle_check() {
  $cache = variable_get('cache', 0);
  $pagestyle_post = array();
  $pagestyle_cookie = array();
  $pagestyle_post['pagestyle'] = 0;

  // allowed values
  $pagestyle_allowed = pagestyle_allowed_values();

  // check the type and the content
  if (isset($_POST['pagestyle_select'])) {
    if (in_array($_POST['pagestyle_select'], $pagestyle_allowed)) {
      $pagestyle_post['pagestyle'] = 1;
    }
  }
  if (isset($_COOKIE['pagestyle'])) {
    if (in_array($_COOKIE['pagestyle'], $pagestyle_allowed)) {
      if (function_exists('filter_xss')) {
        $pagestyle_cookie['pagestyle'] = (string) filter_xss($_COOKIE['pagestyle']);
      }
      else {
        $pagestyle_cookie['pagestyle'] = $_COOKIE['pagestyle'];
      }
    }
  }

  // set session
  if ($cache != 0 && isset($_COOKIE['pagestyle']) && isset($_SESSION['pagestyle']) && $pagestyle_post['pagestyle'] != 1) {
    if ($pagestyle_cookie['pagestyle'] != $_SESSION['pagestyle']) {
      $_SESSION['pagestyle'] = $pagestyle_cookie['pagestyle'];
      if (function_exists('drupal_goto')) {
        $dest['0'] = drupal_get_destination();
        drupal_goto('pagestyle/set', $dest['0']);
      }
      else {
        pagestyle_clear_cache();
      }
    }
  }
}