Club Drupal

/**

 * Implements hook_form_FORM_ID_alter().

 */

function media_internet_form_file_entity_edit_alter(&$form, &$form_state) {

  if (!empty($form['#entity'])) {

    $embed_code = file_create_url($form['#entity']->uri);

    try {

      $provider = get_class(media_internet_get_provider($embed_code));

    }

    catch (Exception $e) {

      form_set_error('embed_code', $e->getMessage());

      $provider = NULL;

    }

    if (!empty($provider) && $provider != 'MediaInternetFileHandler') {

      $form['embed_code'] = array(

        '#type' => 'textfield',

        '#title' => t('File URL'),

        '#description' => t('Enter the URL of this file.'),

        '#attributes' => array('class' => array('media-add-from-url')),

        '#maxlength' => 2083,

        '#required' => TRUE,

        '#default_value' => $embed_code,

      );

      $form['#validators'] = array();

      array_unshift($form['actions']['submit']['#validate'], 'media_internet_add_validate');

      array_unshift($form['actions']['submit']['#submit'], 'media_internet_edit_submit');

    }

  }

}

/**

 *  Submit callback that updates managed file URI.

 */

function media_internet_edit_submit($form, &$form_state) {

  $embed_code = $form_state['values']['embed_code'];

  $provider = get_class(media_internet_get_provider($embed_code));

  $handler = new $provider($embed_code);

  $form_state['values']['uri'] = $handler->parse($embed_code);

}