WordPress/wp-admin/includes/class-walker-nav-menu-checklist.php

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<?php
/**
* Navigation Menu API: Walker_Nav_Menu_Checklist class
*
* @package WordPress
* @subpackage Nav_Menus
* @since 4.4.0
*/
/**
* Create HTML list of nav menu input items.
*
* @since 3.0.0
* @uses Walker_Nav_Menu
*/
class Walker_Nav_Menu_Checklist extends Walker_Nav_Menu {
/**
*
* @param array $fields
*/
public function __construct( $fields = false ) {
if ( $fields ) {
$this->db_fields = $fields;
}
}
/**
* Starts the list before the elements are added.
*
* @see Walker_Nav_Menu::start_lvl()
*
* @since 3.0.0
*
* @param string $output Passed by reference. Used to append additional content.
* @param int $depth Depth of page. Used for padding.
* @param array $args Not used.
*/
public function start_lvl( &$output, $depth = 0, $args = array() ) {
$indent = str_repeat( "\t", $depth );
$output .= "\n$indent<ul class='children'>\n";
}
/**
* Ends the list of after the elements are added.
*
* @see Walker_Nav_Menu::end_lvl()
*
* @since 3.0.0
*
* @param string $output Passed by reference. Used to append additional content.
* @param int $depth Depth of page. Used for padding.
* @param array $args Not used.
*/
public function end_lvl( &$output, $depth = 0, $args = array() ) {
$indent = str_repeat( "\t", $depth );
$output .= "\n$indent</ul>";
}
/**
* Start the element output.
*
* @see Walker_Nav_Menu::start_el()
*
* @since 3.0.0
*
* @global int $_nav_menu_placeholder
*
* @param string $output Passed by reference. Used to append additional content.
* @param object $item Menu item data object.
* @param int $depth Depth of menu item. Used for padding.
* @param array $args Not used.
* @param int $id Not used.
*/
public function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) {
global $_nav_menu_placeholder;
$_nav_menu_placeholder = ( 0 > $_nav_menu_placeholder ) ? intval($_nav_menu_placeholder) - 1 : -1;
$possible_object_id = isset( $item->post_type ) && 'nav_menu_item' == $item->post_type ? $item->object_id : $_nav_menu_placeholder;
$possible_db_id = ( ! empty( $item->ID ) ) && ( 0 < $possible_object_id ) ? (int) $item->ID : 0;
$indent = ( $depth ) ? str_repeat( "\t", $depth ) : '';
$output .= $indent . '<li>';
$output .= '<label class="menu-item-title">';
$output .= '<input type="checkbox" class="menu-item-checkbox';
if ( ! empty( $item->front_or_home ) )
$output .= ' add-to-top';
$output .= '" name="menu-item[' . $possible_object_id . '][menu-item-object-id]" value="'. esc_attr( $item->object_id ) .'" /> ';
if ( ! empty( $item->label ) ) {
$title = $item->label;
} elseif ( isset( $item->post_type ) ) {
/** This filter is documented in wp-includes/post-template.php */
$title = apply_filters( 'the_title', $item->post_title, $item->ID );
if ( ! empty( $item->front_or_home ) && _x( 'Home', 'nav menu home label' ) !== $title )
$title = sprintf( _x( 'Home: %s', 'nav menu front page title' ), $title );
}
$output .= isset( $title ) ? esc_html( $title ) : esc_html( $item->title );
$output .= '</label>';
// Menu item hidden fields
$output .= '<input type="hidden" class="menu-item-db-id" name="menu-item[' . $possible_object_id . '][menu-item-db-id]" value="' . $possible_db_id . '" />';
$output .= '<input type="hidden" class="menu-item-object" name="menu-item[' . $possible_object_id . '][menu-item-object]" value="'. esc_attr( $item->object ) .'" />';
$output .= '<input type="hidden" class="menu-item-parent-id" name="menu-item[' . $possible_object_id . '][menu-item-parent-id]" value="'. esc_attr( $item->menu_item_parent ) .'" />';
$output .= '<input type="hidden" class="menu-item-type" name="menu-item[' . $possible_object_id . '][menu-item-type]" value="'. esc_attr( $item->type ) .'" />';
$output .= '<input type="hidden" class="menu-item-title" name="menu-item[' . $possible_object_id . '][menu-item-title]" value="'. esc_attr( $item->title ) .'" />';
$output .= '<input type="hidden" class="menu-item-url" name="menu-item[' . $possible_object_id . '][menu-item-url]" value="'. esc_attr( $item->url ) .'" />';
$output .= '<input type="hidden" class="menu-item-target" name="menu-item[' . $possible_object_id . '][menu-item-target]" value="'. esc_attr( $item->target ) .'" />';
$output .= '<input type="hidden" class="menu-item-attr_title" name="menu-item[' . $possible_object_id . '][menu-item-attr_title]" value="'. esc_attr( $item->attr_title ) .'" />';
$output .= '<input type="hidden" class="menu-item-classes" name="menu-item[' . $possible_object_id . '][menu-item-classes]" value="'. esc_attr( implode( ' ', $item->classes ) ) .'" />';
$output .= '<input type="hidden" class="menu-item-xfn" name="menu-item[' . $possible_object_id . '][menu-item-xfn]" value="'. esc_attr( $item->xfn ) .'" />';
}
} // Walker_Nav_Menu_Checklist