-/**
- * Create HTML list of categories.
- *
- * @package WordPress
- * @since 2.1.0
- * @uses Walker
- */
-class Walker_Category extends Walker {
- /**
- * What the class handles.
- *
- * @see Walker::$tree_type
- * @since 2.1.0
- * @var string
- */
- public $tree_type = 'category';
-
- /**
- * Database fields to use.
- *
- * @see Walker::$db_fields
- * @since 2.1.0
- * @todo Decouple this
- * @var array
- */
- public $db_fields = array ('parent' => 'parent', 'id' => 'term_id');
-
- /**
- * Starts the list before the elements are added.
- *
- * @see Walker::start_lvl()
- *
- * @since 2.1.0
- *
- * @param string $output Passed by reference. Used to append additional content.
- * @param int $depth Depth of category. Used for tab indentation.
- * @param array $args An array of arguments. Will only append content if style argument value is 'list'.
- * @see wp_list_categories()
- */
- public function start_lvl( &$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.
- *
- * @see Walker::end_lvl()
- *
- * @since 2.1.0
- *
- * @param string $output Passed by reference. Used to append additional content.
- * @param int $depth Depth of category. Used for tab indentation.
- * @param array $args An array of arguments. Will only append content if style argument value is 'list'.
- * @wsee wp_list_categories()
- */
- public function end_lvl( &$output, $depth = 0, $args = array() ) {
- if ( 'list' != $args['style'] )
- return;
-
- $indent = str_repeat("\t", $depth);
- $output .= "$indent</ul>\n";
- }
-
- /**
- * Start the element output.
- *
- * @see Walker::start_el()
- *
- * @since 2.1.0
- *
- * @param string $output Passed by reference. Used to append additional content.
- * @param object $category Category data object.
- * @param int $depth Depth of category in reference to parents. Default 0.
- * @param array $args An array of arguments. @see wp_list_categories()
- * @param int $id ID of the current category.
- */
- public function start_el( &$output, $category, $depth = 0, $args = array(), $id = 0 ) {
- /** 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;
- }
-
- $link = '<a href="' . esc_url( get_term_link( $category ) ) . '" ';
- if ( $args['use_desc_for_title'] && ! empty( $category->description ) ) {
- /**
- * Filter the category description for display.
- *
- * @since 1.2.0
- *
- * @param string $description Category description.
- * @param object $category Category object.
- */
- $link .= 'title="' . esc_attr( strip_tags( apply_filters( 'category_description', $category->description, $category ) ) ) . '"';
- }
-
- $link .= '>';
- $link .= $cat_name . '</a>';
-
- 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->term_id, $category->taxonomy, $args['feed_type'] ) ) . '"';
-
- if ( empty( $args['feed'] ) ) {
- $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='" . $args['feed_image'] . "'$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 = get_term( $args['current_category'], $category->taxonomy );
- if ( $category->term_id == $args['current_category'] ) {
- $css_classes[] = 'current-cat';
- } elseif ( $category->term_id == $_current_category->parent ) {
- $css_classes[] = 'current-cat-parent';
- }
- }
-
- /**
- * Filter the list of CSS classes to include with each category in the list.
- *
- * @since 4.2.0
- *
- * @see wp_list_categories()
- *
- * @param array $css_classes An array of CSS classes to be applied to each list item.
- * @param object $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 ) );
-
- $output .= ' class="' . $css_classes . '"';
- $output .= ">$link\n";
- } else {
- $output .= "\t$link<br />\n";
- }
- }
-
- /**
- * Ends the element output, if needed.
- *
- * @see Walker::end_el()
- *
- * @since 2.1.0
- *
- * @param string $output Passed by reference. Used to append additional content.
- * @param object $page Not used.
- * @param int $depth Depth of category. Not used.
- * @param array $args An array of arguments. Only uses 'list' for whether should append to output. @see wp_list_categories()
- */
- public function end_el( &$output, $page, $depth = 0, $args = array() ) {
- if ( 'list' != $args['style'] )
- return;
-
- $output .= "</li>\n";
- }
-
-}
-
-/**
- * Create HTML dropdown list of Categories.
- *
- * @package WordPress
- * @since 2.1.0
- * @uses Walker
- */
-class Walker_CategoryDropdown extends Walker {
- /**
- * @see Walker::$tree_type
- * @since 2.1.0
- * @var string
- */
- public $tree_type = 'category';
-
- /**
- * @see Walker::$db_fields
- * @since 2.1.0
- * @todo Decouple this
- * @var array
- */
- public $db_fields = array ('parent' => 'parent', 'id' => 'term_id');
-
- /**
- * Start the element output.
- *
- * @see Walker::start_el()
- * @since 2.1.0
- *
- * @param string $output Passed by reference. Used to append additional content.
- * @param object $category Category data object.
- * @param int $depth Depth of category. Used for padding.
- * @param array $args Uses 'selected', 'show_count', and 'value_field' keys, if they exist.
- * See {@see wp_dropdown_categories()}.
- */
- public function start_el( &$output, $category, $depth = 0, $args = array(), $id = 0 ) {
- $pad = str_repeat(' ', $depth * 3);
-
- /** This filter is documented in wp-includes/category-template.php */
- $cat_name = apply_filters( 'list_cats', $category->name, $category );
-
- if ( isset( $args['value_field'] ) && isset( $category->{$args['value_field']} ) ) {
- $value_field = $args['value_field'];
- } else {
- $value_field = 'term_id';
- }
-
- $output .= "\t<option class=\"level-$depth\" value=\"" . esc_attr( $category->{$value_field} ) . "\"";
-
- // Type-juggling causes false matches, so we force everything to a string.
- if ( (string) $category->{$value_field} === (string) $args['selected'] )
- $output .= ' selected="selected"';
- $output .= '>';
- $output .= $pad.$cat_name;
- if ( $args['show_count'] )
- $output .= ' ('. number_format_i18n( $category->count ) .')';
- $output .= "</option>\n";
- }
-}
-
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