How to add a “delete” button to WordPress Admin bar?

The admin bar is a featured introduced by WordPress 3.1. It adds useful options such as adding new posts or editing an existing one.

But it do not feature a delete button, so you can’t trash a post without accessing the post lists on the dashboard.

Here is a cool hack to add a “delete” button to WordPress admin bar.

add_action( 'admin_bar_menu', 'crunchify_add_adminbar_trash_menu', 35 );

function crunchify_add_adminbar_trash_menu() {

  if ( ! is_super_admin() || ! is_admin_bar_showing() )
      return;

  $current_object = get_queried_object();

  // check, is the objekt with the value readable
  if ( ! isset( $current_object->post_author ) )
      return;

  // check, if the user id the same as the author-id if the current post
  if ( (int) $current_object->post_author !== (int) get_current_user_id() )
      return;

  if ( empty( $current_object ) )
      return;

  if ( ! empty( $current_object->post_type ) && 
     ( $post_type_object = get_post_type_object( $current_object->post_type ) ) && 
     current_user_can( $post_type_object->cap->edit_post, $current_object->ID ) 
  ) {
    global $wp_admin_bar;

    $wp_admin_bar->add_menu( 
        array(
            'id'    => 'delete', 
            'title' => __( 'Move to Trash' ), 
            'href'  => get_delete_post_link( $current_object->term_id ) 
        ) 
    );
  }
}

Please let us know if you face any issue running this code.