129 lines
4.2 KiB
PHP
129 lines
4.2 KiB
PHP
<?php
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/**
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* Taxonomy API: Walker_Category_Checklist class
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*
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* @package WordPress
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* @subpackage Administration
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* @since 4.4.0
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*/
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/**
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* Core walker class to output an unordered list of category checkbox input elements.
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*
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* @since 2.5.1
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*
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* @see Walker
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* @see wp_category_checklist()
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* @see wp_terms_checklist()
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*/
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class Walker_Category_Checklist extends Walker {
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public $tree_type = 'category';
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public $db_fields = array(
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'parent' => 'parent',
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'id' => 'term_id',
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); // TODO: Decouple this.
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/**
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* Starts the list before the elements are added.
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*
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* @see Walker:start_lvl()
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*
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* @since 2.5.1
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*
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* @param string $output Used to append additional content (passed by reference).
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* @param int $depth Depth of category. Used for tab indentation.
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* @param array $args An array of arguments. @see wp_terms_checklist()
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*/
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public function start_lvl( &$output, $depth = 0, $args = array() ) {
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$indent = str_repeat( "\t", $depth );
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$output .= "$indent<ul class='children'>\n";
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}
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/**
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* Ends the list of after the elements are added.
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*
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* @see Walker::end_lvl()
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*
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* @since 2.5.1
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*
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* @param string $output Used to append additional content (passed by reference).
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* @param int $depth Depth of category. Used for tab indentation.
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* @param array $args An array of arguments. @see wp_terms_checklist()
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*/
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public function end_lvl( &$output, $depth = 0, $args = array() ) {
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$indent = str_repeat( "\t", $depth );
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$output .= "$indent</ul>\n";
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}
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/**
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* Start the element output.
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*
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* @see Walker::start_el()
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*
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* @since 2.5.1
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*
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* @param string $output Used to append additional content (passed by reference).
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* @param object $category The current term object.
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* @param int $depth Depth of the term in reference to parents. Default 0.
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* @param array $args An array of arguments. @see wp_terms_checklist()
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* @param int $id ID of the current term.
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*/
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public function start_el( &$output, $category, $depth = 0, $args = array(), $id = 0 ) {
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if ( empty( $args['taxonomy'] ) ) {
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$taxonomy = 'category';
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} else {
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$taxonomy = $args['taxonomy'];
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}
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if ( $taxonomy == 'category' ) {
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$name = 'post_category';
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} else {
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$name = 'tax_input[' . $taxonomy . ']';
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}
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$args['popular_cats'] = empty( $args['popular_cats'] ) ? array() : $args['popular_cats'];
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$class = in_array( $category->term_id, $args['popular_cats'] ) ? ' class="popular-category"' : '';
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$args['selected_cats'] = empty( $args['selected_cats'] ) ? array() : $args['selected_cats'];
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if ( ! empty( $args['list_only'] ) ) {
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$aria_checked = 'false';
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$inner_class = 'category';
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if ( in_array( $category->term_id, $args['selected_cats'] ) ) {
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$inner_class .= ' selected';
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$aria_checked = 'true';
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}
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$output .= "\n" . '<li' . $class . '>' .
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'<div class="' . $inner_class . '" data-term-id=' . $category->term_id .
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' tabindex="0" role="checkbox" aria-checked="' . $aria_checked . '">' .
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/** This filter is documented in wp-includes/category-template.php */
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esc_html( apply_filters( 'the_category', $category->name, '', '' ) ) . '</div>';
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} else {
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$output .= "\n<li id='{$taxonomy}-{$category->term_id}'$class>" .
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'<label class="selectit"><input value="' . $category->term_id . '" type="checkbox" name="' . $name . '[]" id="in-' . $taxonomy . '-' . $category->term_id . '"' .
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checked( in_array( $category->term_id, $args['selected_cats'] ), true, false ) .
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disabled( empty( $args['disabled'] ), false, false ) . ' /> ' .
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/** This filter is documented in wp-includes/category-template.php */
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esc_html( apply_filters( 'the_category', $category->name, '', '' ) ) . '</label>';
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}
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}
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/**
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* Ends the element output, if needed.
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*
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* @see Walker::end_el()
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*
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* @since 2.5.1
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*
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* @param string $output Used to append additional content (passed by reference).
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* @param object $category The current term object.
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* @param int $depth Depth of the term in reference to parents. Default 0.
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* @param array $args An array of arguments. @see wp_terms_checklist()
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*/
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public function end_el( &$output, $category, $depth = 0, $args = array() ) {
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$output .= "</li>\n";
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}
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}
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