WordPress/wp-admin/includes/class-walker-nav-menu-checklist.php
Sergey Biryukov ac690426eb Accessibility: Menus: Properly disable form controls on the Menus screen that cannot be used until at least one menu is created.
This ensures that the actual UI controls state matches the visually conveyed state.

Props afercia, audrasjb, dinhtungdu, sathyapulse, simonjanin, welcher, SergeyBiryukov.
Fixes #48409.
Built from https://develop.svn.wordpress.org/trunk@46842


git-svn-id: http://core.svn.wordpress.org/trunk@46642 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2019-12-09 13:49:03 +00:00

123 lines
5.0 KiB
PHP

<?php
/**
* Navigation Menu API: Walker_Nav_Menu_Checklist class
*
* @package WordPress
* @subpackage Administration
* @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 Used to append additional content (passed by reference).
* @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 Used to append additional content (passed by reference).
* @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
* @global int|string $nav_menu_selected_id
*
* @param string $output Used to append additional content (passed by reference).
* @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_selected_id;
$_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"' . wp_nav_menu_disabled_check( $nav_menu_selected_id, false ) . ' 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 );
}
$output .= isset( $title ) ? esc_html( $title ) : esc_html( $item->title );
if ( empty( $item->label ) && isset( $item->post_type ) && 'page' === $item->post_type ) {
// Append post states.
$output .= _post_states( $item, false );
}
$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