function autosave_form_alter in Autosave 7.2

Same name and namespace in other branches

1. 5.3 autosave.module \autosave_form_alter()
2. 5 autosave.module \autosave_form_alter()
3. 5.2 autosave.module \autosave_form_alter()
4. 6.2 autosave.module \autosave_form_alter()
5. 6 autosave.module \autosave_form_alter()
6. 7 autosave.module \autosave_form_alter()

Implements hook_form_alter().

File

./autosave.module, line 167

Does background saves of node being edited.

Code

function autosave_form_alter(&$form, &$form_state, $form_id) {

  // Autosaving node forms can be enabled both by adding the form_id at
  // admin/config/content/autosave or by checking the 'Enable Autosave'
  // checkbox at admin/structure/types/manage/[node:type]. The following
  // variable is TRUE if autosaving is enabled on the latter link and we
  // are on a node form.
  $autosave_node_form = FALSE;
  if (!empty($form['#node_edit_form'])) {
    $node = $form['#node'];
    $autosave_node_form = variable_get('autosave_' . $node->type, 0) && arg(0) != 'admin';
  }
  $form_ids = explode("\n", variable_get('autosave_form_ids', ''));
  foreach ($form_ids as &$formid) {
    $formid = trim($formid);
  }
  if ($autosave_node_form || in_array($form_id, $form_ids)) {

    // Remove the autosaved form when submitting it.
    array_unshift($form['#submit'], 'autosave_remove_autosaved_form_submit');
    if (empty($_POST['autosave_form_path'])) {
      $request_path = request_path();

      // We store the drupal system paths, not the aliases.
      $path = drupal_lookup_path('source', $request_path);

      // For already system paths $path is FALSE.
      if (!$path) {
        $path = $request_path;
      }

      // Make a note in the form of what the original path is, since when
      // submitting the autosaved form to our own callback it will not be
      // the same.
      $form['autosave_form_path'] = array(
        '#type' => 'hidden',
        '#value' => $path,
      );

      // Store form arguments in db only if the form has not been autosaved
      // before. The second part of the condition prevents the creation of db
      // entries with autosave/restore/ path during autosave restore AJAX.
      // Note that 'autosave/restore' might be after a language prefix.
      if (!empty($form_state['build_info']['args']) && strpos($path, 'autosave/restore/') === FALSE) {
        $key = array(
          'form_id' => $form_id,
          'uid' => $GLOBALS['user']->uid,
          'path' => $path,
        );
        db_merge('autosaved_forms')
          ->key($key)
          ->insertFields(array_merge($key, array(
          'timestamp' => 0,
          'serialized' => '',
          'args' => serialize($form_state['build_info']['args']),
        )))
          ->updateFields($key)
          ->execute();
      }
      $settings = array();
      $settings['autosave']['form_id'] = $form_id;
      $settings['autosave']['url'] = url('autosave/handler');
      $settings['autosave']['period'] = variable_get('autosave_period', 10);
      $settings['autosave']['timeout'] = intval(variable_get('autosave_timeout', 0));
      $settings['autosave']['q'] = $path;
      $settings['autosave']['hidden'] = variable_get('autosave_hidden', 0);
      $settings['autosave']['ignoreBehavior'] = variable_get('autosave_ignore_behavior', 0);
      $settings['autosave']['theme'] = $GLOBALS['theme'];

      // If an autosaved version of the form exists, let the user know so that
      // he can restore it if desired.
      $timestamp = db_query("SELECT timestamp FROM {autosaved_forms} WHERE form_id = :form_id AND path = :path AND uid = :uid", array(
        ':form_id' => $form_id,
        ':path' => $path,
        ':uid' => $GLOBALS['user']->uid,
      ))
        ->fetchField();
      $settings['autosave']['savedTimestamp'] = $timestamp ? $timestamp : 0;
      $settings['autosave']['savedDate'] = $timestamp ? format_date($timestamp) : 0;
      $settings['autosave']['form_token'] = drupal_get_token($form_id);
      $form['#id'] = str_replace("_", "-", $form_id);
      $form['autosave_form_path']['#attached']['library'][] = array(
        'autosave',
        'autosave',
      );
      $form['autosave_form_path']['#attached']['js'][] = array(
        'data' => $settings,
        'type' => 'setting',
        'scope' => JS_DEFAULT,
      );
    }
  }
}