function diff_form_node_form_alter in Diff 7.3

Implements hook_form_BASE_FORM_ID_alter().

File

./diff.module, line 366

Provides functionality to show a diff between two node revisions.

Code

function diff_form_node_form_alter(&$form, $form_state) {

  // Add a 'View changes' button on the node edit form.
  $node = $form['#node'];
  if (variable_get('diff_show_preview_changes_node_' . $node->type, TRUE) && user_access('diff view changes') && !empty($node->nid)) {
    $form['actions']['preview_changes'] = array(
      '#type' => 'submit',
      '#value' => t('View changes'),
      '#weight' => 12,
      '#submit' => array(
        'diff_node_form_build_preview_changes',
      ),
    );
  }
}