bp_get_activity_entry_css_class()

	function bp_get_activity_entry_css_class() {
		global $activities_template;

		$class = '';

		if ( bp_is_active( 'media' )  ) {
			// $document_activity = bp_activity_get_meta( bp_get_activity_id(), 'bp_document_activity', true );
			$document_ids = bp_activity_get_meta( bp_get_activity_id(), 'bp_document_ids', true );
			if( ! empty( $document_ids ) ){
				$class .= ' documemt-activity';
			}
		}

		/**
		 * Filters the determined classes to add to the HTML element.
		 *
		 * @since BuddyBoss 1.5.0
		 *
		 * @param string $value Classes to be added to the HTML element.
		 */
		return apply_filters( 'bp_get_activity_entry_css_class', $class );
	}