public function setup_nav( $main_nav = array(), $sub_nav = array() ) {

		// Don't set up navigation if there's no member.
		if ( ! is_user_logged_in() && ! bp_is_user() ) {
			return;
		}

		$is_xprofile_active = bp_is_active( 'xprofile' );

		// Bail if XProfile component is active and there's no custom front page for the user.
		if ( ! bp_displayed_user_has_front_template() && $is_xprofile_active ) {
			return;
		}

		// Determine user to use.
		if ( bp_displayed_user_domain() ) {
			$user_domain = bp_displayed_user_domain();
		} elseif ( bp_loggedin_user_domain() ) {
			$user_domain = bp_loggedin_user_domain();
		} else {
			return;
		}

		// Set slug to profile in case the xProfile component is not active
		$slug = bp_get_profile_slug();

		// Defaults to empty navs
		$this->main_nav = array();
		$this->sub_nav  = array();

		if ( ! $is_xprofile_active ) {
			$this->main_nav = array(
				'name'                => _x( 'Profile', 'Member profile main navigation', 'buddypress' ),
				'slug'                => $slug,
				'position'            => 20,
				'screen_function'     => 'bp_members_screen_display_profile',
				'default_subnav_slug' => 'public',
				'item_css_id'         => buddypress()->profile->id
			);
		}

		/**
		 * Setup the subnav items for the member profile.
		 *
		 * This is required in case there's a custom front or in case the xprofile component
		 * is not active.
		 */
		$this->sub_nav = array(
			'name'            => _x( 'View', 'Member profile view', 'buddypress' ),
			'slug'            => 'public',
			'parent_url'      => trailingslashit( $user_domain . $slug ),
			'parent_slug'     => $slug,
			'screen_function' => 'bp_members_screen_display_profile',
			'position'        => 10
		);

		/**
		 * If there's a front template the members component nav
		 * will be there to display the user's front page.
		 */
		if ( bp_displayed_user_has_front_template() ) {
			$main_nav = array(
				'name'                => _x( 'Home', 'Member Home page', 'buddypress' ),
				'slug'                => 'front',
				'position'            => 5,
				'screen_function'     => 'bp_members_screen_display_profile',
				'default_subnav_slug' => 'public',
			);

			// We need a dummy subnav for the front page to load.
			$front_subnav = $this->sub_nav;
			$front_subnav['parent_slug'] = 'front';

			// In case the subnav is displayed in the front template
			$front_subnav['parent_url'] = trailingslashit( $user_domain . 'front' );

			// Set the subnav
			$sub_nav[] = $front_subnav;

			/**
			 * If the profile component is not active, we need to create a new
			 * nav to display the WordPress profile.
			 */
			if ( ! $is_xprofile_active ) {
				add_action( 'bp_members_setup_nav', array( $this, 'setup_profile_nav' ) );
			}

		/**
		 * If there's no front template and xProfile is not active, the members
		 * component nav will be there to display the WordPress profile
		 */
		} else {
			$main_nav  = $this->main_nav;
			$sub_nav[] = $this->sub_nav;
		}


		parent::setup_nav( $main_nav, $sub_nav );
	}