| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146 | <?php/** * Custom page walker for this theme. * * @package WordPress * @subpackage Twenty_Twenty * @since Twenty Twenty 1.0 */if ( ! class_exists( 'TwentyTwenty_Walker_Page' ) ) {	/**	 * CUSTOM PAGE WALKER	 * A custom walker for pages.	 */	class TwentyTwenty_Walker_Page extends Walker_Page {		/**		 * Outputs the beginning of the current element in the tree.		 *		 * @see Walker::start_el()		 * @since 2.1.0		 *		 * @param string  $output       Used to append additional content. Passed by reference.		 * @param WP_Post $page         Page data object.		 * @param int     $depth        Optional. Depth of page. Used for padding. Default 0.		 * @param array   $args         Optional. Array of arguments. Default empty array.		 * @param int     $current_page Optional. Page ID. Default 0.		 */		public function start_el( &$output, $page, $depth = 0, $args = array(), $current_page = 0 ) {			if ( isset( $args['item_spacing'] ) && 'preserve' === $args['item_spacing'] ) {				$t = "\t";				$n = "\n";			} else {				$t = '';				$n = '';			}			if ( $depth ) {				$indent = str_repeat( $t, $depth );			} else {				$indent = '';			}			$css_class = array( 'page_item', 'page-item-' . $page->ID );			if ( isset( $args['pages_with_children'][ $page->ID ] ) ) {				$css_class[] = 'page_item_has_children';			}			if ( ! empty( $current_page ) ) {				$_current_page = get_post( $current_page );				if ( $_current_page && in_array( $page->ID, $_current_page->ancestors, true ) ) {					$css_class[] = 'current_page_ancestor';				}				if ( $page->ID === $current_page ) {					$css_class[] = 'current_page_item';				} elseif ( $_current_page && $page->ID === $_current_page->post_parent ) {					$css_class[] = 'current_page_parent';				}			} elseif ( get_option( 'page_for_posts' ) === $page->ID ) {				$css_class[] = 'current_page_parent';			}			/** This filter is documented in wp-includes/class-walker-page.php */			$css_classes = implode( ' ', apply_filters( 'page_css_class', $css_class, $page, $depth, $args, $current_page ) );			$css_classes = $css_classes ? ' class="' . esc_attr( $css_classes ) . '"' : '';			if ( '' === $page->post_title ) {				/* translators: %d: ID of a post. */				$page->post_title = sprintf( __( '#%d (no title)', 'twentytwenty' ), $page->ID );			}			$args['link_before'] = empty( $args['link_before'] ) ? '' : $args['link_before'];			$args['link_after']  = empty( $args['link_after'] ) ? '' : $args['link_after'];			$atts                 = array();			$atts['href']         = get_permalink( $page->ID );			$atts['aria-current'] = ( $page->ID === $current_page ) ? 'page' : '';			/** This filter is documented in wp-includes/class-walker-page.php */			$atts = apply_filters( 'page_menu_link_attributes', $atts, $page, $depth, $args, $current_page );			$attributes = '';			foreach ( $atts as $attr => $value ) {				if ( ! empty( $value ) ) {					$value       = ( 'href' === $attr ) ? esc_url( $value ) : esc_attr( $value );					$attributes .= ' ' . $attr . '="' . $value . '"';				}			}			$args['list_item_before'] = '';			$args['list_item_after']  = '';			// Wrap the link in a div and append a sub menu toggle.			if ( isset( $args['show_toggles'] ) && true === $args['show_toggles'] ) {				// Wrap the menu item link contents in a div, used for positioning.				$args['list_item_before'] = '<div class="ancestor-wrapper">';				$args['list_item_after']  = '';				// Add a toggle to items with children.				if ( isset( $args['pages_with_children'][ $page->ID ] ) ) {					$toggle_target_string = '.menu-modal .page-item-' . $page->ID . ' > ul';					$toggle_duration      = twentytwenty_toggle_duration();					// Add the sub menu toggle.					$args['list_item_after'] .= '<button class="toggle sub-menu-toggle fill-children-current-color" data-toggle-target="' . $toggle_target_string . '" data-toggle-type="slidetoggle" data-toggle-duration="' . absint( $toggle_duration ) . '" aria-expanded="false"><span class="screen-reader-text">' . __( 'Show sub menu', 'twentytwenty' ) . '</span>' . twentytwenty_get_theme_svg( 'chevron-down' ) . '</button>';				}				// Close the wrapper.				$args['list_item_after'] .= '</div><!-- .ancestor-wrapper -->';			}			// Add icons to menu items with children.			if ( isset( $args['show_sub_menu_icons'] ) && true === $args['show_sub_menu_icons'] ) {				if ( isset( $args['pages_with_children'][ $page->ID ] ) ) {					$args['list_item_after'] = '<span class="icon"></span>';				}			}			$output .= $indent . sprintf(				'<li%s>%s<a%s>%s%s%s</a>%s',				$css_classes,				$args['list_item_before'],				$attributes,				$args['link_before'],				/** This filter is documented in wp-includes/post-template.php */				apply_filters( 'the_title', $page->post_title, $page->ID ),				$args['link_after'],				$args['list_item_after']			);			if ( ! empty( $args['show_date'] ) ) {				if ( 'modified' === $args['show_date'] ) {					$time = $page->post_modified;				} else {					$time = $page->post_date;				}				$date_format = empty( $args['date_format'] ) ? '' : $args['date_format'];				$output     .= ' ' . mysql2date( $date_format, $time );			}		}	}}
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