wp_admin_bar_my_account_item( WP_Admin_Bar $wp_admin_bar )

function wp_admin_bar_my_account_item( $wp_admin_bar ) {
	$user_id      = get_current_user_id();
	$current_user = wp_get_current_user();

	if ( ! $user_id )
		return;

	if ( current_user_can( 'read' ) ) {
		$profile_url = get_edit_profile_url( $user_id );
	} elseif ( is_multisite() ) {
		$profile_url = get_dashboard_url( $user_id, 'profile.php' );
	} else {
		$profile_url = false;
	}

	$avatar = get_avatar( $user_id, 26 );
	$display_name  = '<span class="display-name">' . $current_user->display_name . '</span>';
	$class  = empty( $avatar ) ? '' : 'with-avatar';

	$wp_admin_bar->add_menu( array(
		'id'        => 'my-account',
		'parent'    => 'top-secondary',
		'title'     => $display_name . $avatar,
		'href'      => $profile_url,
		'meta'      => array(
			'class'     => $class,
		),
	) );
}