Gather out of band data, compare it to what we started with and store the difference.

File

plugins/views_plugin_cache.inc, line 191

Class

views_plugin_cache

The base plugin to handle caching.

Code

function gather_headers() {
  // Simple replacement for head
  $this->storage['head'] = str_replace($this->storage['head'], '', drupal_set_html_head());

  // Slightly less simple for CSS:
  $css = drupal_add_css();
  $start = $this->storage['css'];
  $this->storage['css'] = array();

  foreach ($css as $media => $medias) {
    foreach ($medias as $type => $types) {
      foreach ($types as $path => $preprocess) {
        if (!isset($start[$media][$type][$path])) {
          $this->storage['css'][] = array($path, $type, $media, $preprocess);
        }
      }
    }
  }

  $js = array();
  // A little less simple for js
  foreach (array('header', 'footer') as $scope) {
    $js[$scope] = drupal_add_js(NULL, NULL, $scope);
  }

  $start = $this->storage['js'];
  $this->storage['js'] = array();

  foreach ($js as $scope => $scopes) {
    foreach ($scopes as $type => $types) {
      foreach ($types as $id => $info) {
        if (!isset($start[$scope][$type][$id])) {
          switch ($type) {
            case 'setting':
              $this->storage['js'][] = array($info, $type, $scope);
              break;

            case 'inline':
              $this->storage['js'][] = array($info['code'], $type, $scope, $info['defer']);
              break;

            default:
              $this->storage['js'][] = array($id, $type, $scope, $info['defer'], $info['cache']);
          }
        }
      }
    }
  }
}