public function __construct( $args = array() ) {

		// Parse arguments.
		$r = wp_parse_args( $args, array(
			'id'                => false,
			'user_id'           => 0,
			'item_id'           => false,
			'secondary_item_id' => false,
			'component_name'    => bp_notifications_get_registered_components(),
			'component_action'  => false,
			'is_new'            => true,
			'search_terms'      => '',
			'order_by'          => 'date_notified',
			'sort_order'        => 'DESC',
			'page_arg'          => 'npage',
			'page'              => 1,
			'per_page'          => 25,
			'max'               => null,
			'meta_query'        => false,
			'date_query'        => false
		) );

		// Sort order direction.
		$orders = array( 'ASC', 'DESC' );
		if ( ! empty( $_GET['sort_order'] ) && in_array( $_GET['sort_order'], $orders ) ) {
			$r['sort_order'] = $_GET['sort_order'];
		} else {
			$r['sort_order'] = in_array( $r['sort_order'], $orders ) ? $r['sort_order'] : 'DESC';
		}

		// Setup variables.
		$this->pag_arg      = sanitize_key( $r['page_arg'] );
		$this->pag_page     = bp_sanitize_pagination_arg( $this->pag_arg, $r['page']     );
		$this->pag_num      = bp_sanitize_pagination_arg( 'num',          $r['per_page'] );
		$this->user_id      = $r['user_id'];
		$this->is_new       = $r['is_new'];
		$this->search_terms = $r['search_terms'];
		$this->order_by     = $r['order_by'];
		$this->sort_order   = $r['sort_order'];
		$this->query_vars   = array(
			'id'                => $r['id'],
			'user_id'           => $this->user_id,
			'item_id'           => $r['item_id'],
			'secondary_item_id' => $r['secondary_item_id'],
			'component_name'    => $r['component_name'],
			'component_action'  => $r['component_action'],
			'meta_query'        => $r['meta_query'],
			'date_query'        => $r['date_query'],
			'is_new'            => $this->is_new,
			'search_terms'      => $this->search_terms,
			'order_by'          => $this->order_by,
			'sort_order'        => $this->sort_order,
			'page'              => $this->pag_page,
			'per_page'          => $this->pag_num,
		);

		// Setup the notifications to loop through.
		$this->notifications            = BP_Notifications_Notification::get( $this->query_vars );
		$this->total_notification_count = BP_Notifications_Notification::get_total_count( $this->query_vars );

		if ( empty( $this->notifications ) ) {
			$this->notification_count       = 0;
			$this->total_notification_count = 0;

		} else {
			if ( ! empty( $r['max'] ) ) {
				if ( $r['max'] >= count( $this->notifications ) ) {
					$this->notification_count = count( $this->notifications );
				} else {
					$this->notification_count = (int) $r['max'];
				}
			} else {
				$this->notification_count = count( $this->notifications );
			}
		}

		if ( (int) $this->total_notification_count && (int) $this->pag_num ) {
			$add_args = array(
				'sort_order' => $this->sort_order,
			);

			$this->pag_links = paginate_links( array(
				'base'      => add_query_arg( $this->pag_arg, '%#%' ),
				'format'    => '',
				'total'     => ceil( (int) $this->total_notification_count / (int) $this->pag_num ),
				'current'   => $this->pag_page,
				'prev_text' => _x( '←', 'Notifications pagination previous text', 'buddypress' ),
				'next_text' => _x( '→', 'Notifications pagination next text',     'buddypress' ),
				'mid_size'  => 1,
				'add_args'  => $add_args,
			) );
		}
	}