do_hooks();
}
return self::$instance;
}
private function do_hooks() {
$is_enabled = UtilsLocal::get_images_support_custom_menus();
if ( $is_enabled ) {
add_action( 'init', array( $this, 'setup' ) );
// Scripts
add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_admin_scripts' ), 999 );
}
}
public function setup() {
if ( ! is_admin() ) {
return;
}
$this->init_fields();
if ( ! version_compare( get_bloginfo( 'version' ), '5.4', '>=' ) ) {
add_filter( 'wp_edit_nav_menu_walker', function () {
return 'Menu_Item_Custom_Fields_Walker';
}, 99 );
}
add_filter( 'wp_nav_menu_item_custom_fields', array( $this, 'render_fields' ), 10, 4 );
add_filter( 'manage_nav-menus_columns', array( $this, 'manage_columns' ), 99 );
add_action( 'wp_update_nav_menu_item', array( $this, 'save_fields' ), 10, 3 );
}
public function enqueue_admin_scripts() {
$screen = get_current_screen();
$do_enqueue = $screen->id === "nav-menus";
if ( $do_enqueue ) {
// Enabling wp.media for Image picker
wp_enqueue_media();
// Include image picker
Utils::enqueue_public_script( "image-picker", "ImagePickerLocalization", [
"pickerSelector" => ".iksm-image-picker",
"uploadButtonSelector" => ".upload-image-button",
"removeButtonSelector" => ".remove-image-button",
"placeholderURL" => esc_js( Utils::get_placeholder_image() ),
"mediaTitle" => Utils::t( "Choose an image" ),
"mediaButtonTitle" => Utils::t( "Use image" )
] );
}
}
static function init_fields() {
self::$fields = [
'image' => [
'label' => ImproverUtils::get_image_picker_label(),
'type' => 'image',
'is_full_width' => true
],
// 'badge' => [
// 'label' => "Badge",
// 'is_full_width' => true
// ],
];
}
/**
* Generator for Id of item meta
*/
public static function get_item_meta_key( $field_key ) {
return Plugin::$slug . '_menu_item_' . $field_key;
}
/**
* Generator for Id of form field name
*/
public static function get_form_field_name( $field_key ) {
return Plugin::$slug . '_' . $field_key;
}
/**
* Get current field value with definite name for definite menu item
*/
static function get_field_value( $menu_item_id, $field_key ) {
return get_post_meta( $menu_item_id, self::get_item_meta_key( $field_key ), true );
}
/**
* Print fields
*
* @wp_hook action wp_nav_menu_item_custom_fields
*
* @param object $item Menu item data object.
* @param int $depth Nav menu depth.
* @param array $args Menu item args.
* @param int $id Nav menu ID.
*
* @return string Form fields
*/
public static function render_fields( $id, $item, $depth, $args ) {
foreach ( self::$fields as $key => $field ) {
echo self::generate_field_html(
$item->ID,
self::get_form_field_name( $key ),
self::get_field_value( $item->ID, $key ),
$field
);
}
}
/**
* Generate single field html
* @return string
*/
private static function generate_field_html( $id, $name, $value, $field ) {
$is_full_width = isset( $field['is_full_width'] ) ? $field['is_full_width'] : false;
$label = isset( $field['label'] ) ? $field['label'] : '';
$type = isset( $field['type'] ) ? $field['type'] : 'text';
$class = $is_full_width ? 'wide' : 'thin';
$input_name = "{$name}[{$id}]";
if ( $type === "image" ) {
$input = ImproverUtils::render_image_picker( $input_name, $value );
} else {
$input = "
";
}
return "
";
}
/**
* Add our field to the screen options toggle
*
* @wp_hook action manage_nav-menus_columns
* @link http://codex.wordpress.org/Plugin_API/Filter_Reference/manage_posts_columns
*
* @param array $columns Menu item columns
*
* @return array
*/
public static function manage_columns( $columns ) {
$columns[ self::get_form_field_name( 'image' ) ] = ImproverUtils::get_image_picker_label();
return $columns;
}
/**
* Save menu item's icons metadata
*
* @wp_hook action wp_update_nav_menu_item
* @link http://codex.wordpress.org/Plugin_API/Action_Reference/wp_update_nav_menu_item
*
* @param int $menu_id Nav menu ID.
* @param int $menu_item_id Menu item ID.
* @param array $menu_item_args Menu item data.
*/
public static function save_fields( $menu_id, $menu_item_id, $menu_item_args ) {
if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) {
return;
}
$screen = get_current_screen();
if ( ! $screen instanceof WP_Screen || 'nav-menus' !== $screen->id ) {
return;
}
check_admin_referer( 'update-nav_menu', 'update-nav-menu-nonce' );
foreach ( self::$fields as $key => $field ) {
$form_field_name = self::get_form_field_name( $key );
if ( isset( $_POST[ $form_field_name ][ $menu_item_id ] ) ) {
$item_meta_key = self::get_item_meta_key( $key );
$value = stripslashes( $_POST[ $form_field_name ][ $menu_item_id ] );
update_post_meta( $menu_item_id, $item_meta_key, $value );
}
}
}
}