--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/class-walker-page.php Mon Oct 14 17:39:30 2019 +0200
@@ -0,0 +1,231 @@
+<?php
+/**
+ * Post API: Walker_Page class
+ *
+ * @package WordPress
+ * @subpackage Template
+ * @since 4.4.0
+ */
+
+/**
+ * Core walker class used to create an HTML list of pages.
+ *
+ * @since 2.1.0
+ *
+ * @see Walker
+ */
+class Walker_Page extends Walker {
+
+ /**
+ * What the class handles.
+ *
+ * @since 2.1.0
+ * @var string
+ *
+ * @see Walker::$tree_type
+ */
+ public $tree_type = 'page';
+
+ /**
+ * Database fields to use.
+ *
+ * @since 2.1.0
+ * @var array
+ *
+ * @see Walker::$db_fields
+ * @todo Decouple this.
+ */
+ public $db_fields = array( 'parent' => 'post_parent', 'id' => 'ID' );
+
+ /**
+ * Outputs the beginning of the current level in the tree before elements are output.
+ *
+ * @since 2.1.0
+ *
+ * @see Walker::start_lvl()
+ *
+ * @param string $output Used to append additional content (passed by reference).
+ * @param int $depth Optional. Depth of page. Used for padding. Default 0.
+ * @param array $args Optional. Arguments for outputting the next level.
+ * Default empty array.
+ */
+ public function start_lvl( &$output, $depth = 0, $args = array() ) {
+ if ( isset( $args['item_spacing'] ) && 'preserve' === $args['item_spacing'] ) {
+ $t = "\t";
+ $n = "\n";
+ } else {
+ $t = '';
+ $n = '';
+ }
+ $indent = str_repeat( $t, $depth );
+ $output .= "{$n}{$indent}<ul class='children'>{$n}";
+ }
+
+ /**
+ * Outputs the end of the current level in the tree after elements are output.
+ *
+ * @since 2.1.0
+ *
+ * @see Walker::end_lvl()
+ *
+ * @param string $output Used to append additional content (passed by reference).
+ * @param int $depth Optional. Depth of page. Used for padding. Default 0.
+ * @param array $args Optional. Arguments for outputting the end of the current level.
+ * Default empty array.
+ */
+ public function end_lvl( &$output, $depth = 0, $args = array() ) {
+ if ( isset( $args['item_spacing'] ) && 'preserve' === $args['item_spacing'] ) {
+ $t = "\t";
+ $n = "\n";
+ } else {
+ $t = '';
+ $n = '';
+ }
+ $indent = str_repeat( $t, $depth );
+ $output .= "{$indent}</ul>{$n}";
+ }
+
+ /**
+ * 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 ) ) {
+ $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 ( $page->ID == get_option('page_for_posts') ) {
+ $css_class[] = 'current_page_parent';
+ }
+
+ /**
+ * Filters the list of CSS classes to include with each page item in the list.
+ *
+ * @since 2.8.0
+ *
+ * @see wp_list_pages()
+ *
+ * @param array $css_class An array of CSS classes to be applied
+ * to each list item.
+ * @param WP_Post $page Page data object.
+ * @param int $depth Depth of page, used for padding.
+ * @param array $args An array of arguments.
+ * @param int $current_page ID of the current page.
+ */
+ $css_classes = implode( ' ', apply_filters( 'page_css_class', $css_class, $page, $depth, $args, $current_page ) );
+
+ if ( '' === $page->post_title ) {
+ /* translators: %d: ID of a post */
+ $page->post_title = sprintf( __( '#%d (no title)' ), $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 );
+
+ /**
+ * Filters the HTML attributes applied to a page menu item's anchor element.
+ *
+ * @since 4.8.0
+ *
+ * @param array $atts {
+ * The HTML attributes applied to the menu item's `<a>` element, empty strings are ignored.
+ *
+ * @type string $href The href attribute.
+ * }
+ * @param WP_Post $page Page data object.
+ * @param int $depth Depth of page, used for padding.
+ * @param array $args An array of arguments.
+ * @param int $current_page ID of the current page.
+ */
+ $atts = apply_filters( 'page_menu_link_attributes', $atts, $page, $depth, $args, $current_page );
+
+ $attributes = '';
+ foreach ( $atts as $attr => $value ) {
+ if ( ! empty( $value ) ) {
+ $value = esc_attr( $value );
+ $attributes .= ' ' . $attr . '="' . $value . '"';
+ }
+ }
+
+ $output .= $indent . sprintf(
+ '<li class="%s"><a%s>%s%s%s</a>',
+ $css_classes,
+ $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']
+ );
+
+ 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 );
+ }
+ }
+
+ /**
+ * Outputs the end of the current element in the tree.
+ *
+ * @since 2.1.0
+ *
+ * @see Walker::end_el()
+ *
+ * @param string $output Used to append additional content. Passed by reference.
+ * @param WP_Post $page Page data object. Not used.
+ * @param int $depth Optional. Depth of page. Default 0 (unused).
+ * @param array $args Optional. Array of arguments. Default empty array.
+ */
+ public function end_el( &$output, $page, $depth = 0, $args = array() ) {
+ if ( isset( $args['item_spacing'] ) && 'preserve' === $args['item_spacing'] ) {
+ $t = "\t";
+ $n = "\n";
+ } else {
+ $t = '';
+ $n = '';
+ }
+ $output .= "</li>{$n}";
+ }
+
+}