Adding upstream version 6.4.3+dfsg1.upstream/6.4.3+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 278 insertions, 0 deletions

diff --git a/wp-includes/class-walker-category.php b/wp-includes/class-walker-category.php
new file mode 100644
index 0000000..24ae740
--- /dev/null
+++ b/wp-includes/class-walker-category.php
@@ -0,0 +1,278 @@
+<?php
+/**
+ * Taxonomy API: Walker_Category class
+ *
+ * @package WordPress
+ * @subpackage Template
+ * @since 4.4.0
+ */
+
+/**
+ * Core class used to create an HTML list of categories.
+ *
+ * @since 2.1.0
+ *
+ * @see Walker
+ */
+class Walker_Category extends Walker {
+
+	/**
+	 * What the class handles.
+	 *
+	 * @since 2.1.0
+	 * @var string
+	 *
+	 * @see Walker::$tree_type
+	 */
+	public $tree_type = 'category';
+
+	/**
+	 * Database fields to use.
+	 *
+	 * @since 2.1.0
+	 * @var string[]
+	 *
+	 * @see Walker::$db_fields
+	 * @todo Decouple this
+	 */
+	public $db_fields = array(
+		'parent' => 'parent',
+		'id'     => 'term_id',
+	);
+
+	/**
+	 * Starts the list before the elements are added.
+	 *
+	 * @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 category. Used for tab indentation. Default 0.
+	 * @param array  $args   Optional. An array of arguments. Will only append content if style argument
+	 *                       value is 'list'. See wp_list_categories(). Default empty array.
+	 */
+	public function start_lvl( &$output, $depth = 0, $args = array() ) {
+		if ( 'list' !== $args['style'] ) {
+			return;
+		}
+
+		$indent  = str_repeat( "\t", $depth );
+		$output .= "$indent<ul class='children'>\n";
+	}
+
+	/**
+	 * Ends the list of after the elements are added.
+	 *
+	 * @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 category. Used for tab indentation. Default 0.
+	 * @param array  $args   Optional. An array of arguments. Will only append content if style argument
+	 *                       value is 'list'. See wp_list_categories(). Default empty array.
+	 */
+	public function end_lvl( &$output, $depth = 0, $args = array() ) {
+		if ( 'list' !== $args['style'] ) {
+			return;
+		}
+
+		$indent  = str_repeat( "\t", $depth );
+		$output .= "$indent</ul>\n";
+	}
+
+	/**
+	 * Starts the element output.
+	 *
+	 * @since 2.1.0
+	 * @since 5.9.0 Renamed `$category` to `$data_object` and `$id` to `$current_object_id`
+	 *              to match parent class for PHP 8 named parameter support.
+	 *
+	 * @see Walker::start_el()
+	 *
+	 * @param string  $output            Used to append additional content (passed by reference).
+	 * @param WP_Term $data_object       Category data object.
+	 * @param int     $depth             Optional. Depth of category in reference to parents. Default 0.
+	 * @param array   $args              Optional. An array of arguments. See wp_list_categories().
+	 *                                   Default empty array.
+	 * @param int     $current_object_id Optional. ID of the current category. Default 0.
+	 */
+	public function start_el( &$output, $data_object, $depth = 0, $args = array(), $current_object_id = 0 ) {
+		// Restores the more descriptive, specific name for use within this method.
+		$category = $data_object;
+
+		/** This filter is documented in wp-includes/category-template.php */
+		$cat_name = apply_filters( 'list_cats', esc_attr( $category->name ), $category );
+
+		// Don't generate an element if the category name is empty.
+		if ( '' === $cat_name ) {
+			return;
+		}
+
+		$atts         = array();
+		$atts['href'] = get_term_link( $category );
+
+		if ( $args['use_desc_for_title'] && ! empty( $category->description ) ) {
+			/**
+			 * Filters the category description for display.
+			 *
+			 * @since 1.2.0
+			 *
+			 * @param string  $description Category description.
+			 * @param WP_Term $category    Category object.
+			 */
+			$atts['title'] = strip_tags( apply_filters( 'category_description', $category->description, $category ) );
+		}
+
+		/**
+		 * Filters the HTML attributes applied to a category list item's anchor element.
+		 *
+		 * @since 5.2.0
+		 *
+		 * @param array   $atts {
+		 *     The HTML attributes applied to the list item's `<a>` element, empty strings are ignored.
+		 *
+		 *     @type string $href  The href attribute.
+		 *     @type string $title The title attribute.
+		 * }
+		 * @param WP_Term $category          Term data object.
+		 * @param int     $depth             Depth of category, used for padding.
+		 * @param array   $args              An array of arguments.
+		 * @param int     $current_object_id ID of the current category.
+		 */
+		$atts = apply_filters( 'category_list_link_attributes', $atts, $category, $depth, $args, $current_object_id );
+
+		$attributes = '';
+		foreach ( $atts as $attr => $value ) {
+			if ( is_scalar( $value ) && '' !== $value && false !== $value ) {
+				$value       = ( 'href' === $attr ) ? esc_url( $value ) : esc_attr( $value );
+				$attributes .= ' ' . $attr . '="' . $value . '"';
+			}
+		}
+
+		$link = sprintf(
+			'<a%s>%s</a>',
+			$attributes,
+			$cat_name
+		);
+
+		if ( ! empty( $args['feed_image'] ) || ! empty( $args['feed'] ) ) {
+			$link .= ' ';
+
+			if ( empty( $args['feed_image'] ) ) {
+				$link .= '(';
+			}
+
+			$link .= '<a href="' . esc_url( get_term_feed_link( $category, $category->taxonomy, $args['feed_type'] ) ) . '"';
+
+			if ( empty( $args['feed'] ) ) {
+				/* translators: %s: Category name. */
+				$alt = ' alt="' . sprintf( __( 'Feed for all posts filed under %s' ), $cat_name ) . '"';
+			} else {
+				$alt   = ' alt="' . $args['feed'] . '"';
+				$name  = $args['feed'];
+				$link .= empty( $args['title'] ) ? '' : $args['title'];
+			}
+
+			$link .= '>';
+
+			if ( empty( $args['feed_image'] ) ) {
+				$link .= $name;
+			} else {
+				$link .= "<img src='" . esc_url( $args['feed_image'] ) . "'$alt" . ' />';
+			}
+
+			$link .= '</a>';
+
+			if ( empty( $args['feed_image'] ) ) {
+				$link .= ')';
+			}
+		}
+
+		if ( ! empty( $args['show_count'] ) ) {
+			$link .= ' (' . number_format_i18n( $category->count ) . ')';
+		}
+
+		if ( 'list' === $args['style'] ) {
+			$output     .= "\t<li";
+			$css_classes = array(
+				'cat-item',
+				'cat-item-' . $category->term_id,
+			);
+
+			if ( ! empty( $args['current_category'] ) ) {
+				// 'current_category' can be an array, so we use `get_terms()`.
+				$_current_terms = get_terms(
+					array(
+						'taxonomy'   => $category->taxonomy,
+						'include'    => $args['current_category'],
+						'hide_empty' => false,
+					)
+				);
+
+				foreach ( $_current_terms as $_current_term ) {
+					if ( $category->term_id === $_current_term->term_id ) {
+						$css_classes[] = 'current-cat';
+						$link          = str_replace( '<a', '<a aria-current="page"', $link );
+					} elseif ( $category->term_id === $_current_term->parent ) {
+						$css_classes[] = 'current-cat-parent';
+					}
+
+					while ( $_current_term->parent ) {
+						if ( $category->term_id === $_current_term->parent ) {
+							$css_classes[] = 'current-cat-ancestor';
+							break;
+						}
+
+						$_current_term = get_term( $_current_term->parent, $category->taxonomy );
+					}
+				}
+			}
+
+			/**
+			 * Filters the list of CSS classes to include with each category in the list.
+			 *
+			 * @since 4.2.0
+			 *
+			 * @see wp_list_categories()
+			 *
+			 * @param string[] $css_classes An array of CSS classes to be applied to each list item.
+			 * @param WP_Term  $category    Category data object.
+			 * @param int      $depth       Depth of page, used for padding.
+			 * @param array    $args        An array of wp_list_categories() arguments.
+			 */
+			$css_classes = implode( ' ', apply_filters( 'category_css_class', $css_classes, $category, $depth, $args ) );
+			$css_classes = $css_classes ? ' class="' . esc_attr( $css_classes ) . '"' : '';
+
+			$output .= $css_classes;
+			$output .= ">$link\n";
+		} elseif ( isset( $args['separator'] ) ) {
+			$output .= "\t$link" . $args['separator'] . "\n";
+		} else {
+			$output .= "\t$link<br />\n";
+		}
+	}
+
+	/**
+	 * Ends the element output, if needed.
+	 *
+	 * @since 2.1.0
+	 * @since 5.9.0 Renamed `$page` to `$data_object` to match parent class for PHP 8 named parameter support.
+	 *
+	 * @see Walker::end_el()
+	 *
+	 * @param string $output      Used to append additional content (passed by reference).
+	 * @param object $data_object Category data object. Not used.
+	 * @param int    $depth       Optional. Depth of category. Not used.
+	 * @param array  $args        Optional. An array of arguments. Only uses 'list' for whether should
+	 *                            append to output. See wp_list_categories(). Default empty array.
+	 */
+	public function end_el( &$output, $data_object, $depth = 0, $args = array() ) {
+		if ( 'list' !== $args['style'] ) {
+			return;
+		}
+
+		$output .= "</li>\n";
+	}
+}