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Description

Outputs the content for the current Navigation Menu widget instance.

Usage

WP_Nav_Menu_Widget::widget( $args, $instance );

Parameters

$args

( array ) required – Display arguments including 'before_title', 'after_title', 'before_widget', and 'after_widget'.

$instance

( array ) required – Settings for the current Navigation Menu widget instance.

Returns

void

Source

File name: wordpress/wp-includes/widgets/class-wp-nav-menu-widget.php
Lines:

  public function widget( $args, $instance ) {
    // Get menu.
    $nav_menu = ! empty( $instance['nav_menu'] ) ? wp_get_nav_menu_object( $instance['nav_menu'] ) : false;

    if ( ! $nav_menu ) {
      return;
    }

    $default_title = __( 'Menu' );
    $title         = ! empty( $instance['title'] ) ? $instance['title'] : '';

    
/** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */
    $title = apply_filters( 'widget_title', $title, $instance, $this->id_base );

    echo $args['before_widget'];

    if ( $title ) {
      echo $args['before_title'] . $title . $args['after_title'];
    }

    $format = current_theme_supports( 'html5', 'navigation-widgets' ) ? 'html5' : 'xhtml';

    
/**
 * Filters the HTML format of widgets with navigation links.
 *
 * @since 5.5.0
 *
 * @param string $format The type of markup to use in widgets with navigation links.
 *                       Accepts 'html5', 'xhtml'.
 */
    $format = apply_filters( 'navigation_widgets_format', $format );

    if ( 'html5' === $format ) {
      // The title may be filtered: Strip out HTML and make sure the aria-label is never empty.
      $title      = trim( strip_tags( $title ) );
      $aria_label = $title ? $title : $default_title;

      $nav_menu_args = array(
        'fallback_cb'          => '',
        'menu'                 => $nav_menu,
        'container'            => 'nav',
        'container_aria_label' => $aria_label,
        'items_wrap'           => '<ul id="%1$s" class="%2$s">%3$s</ul>',
      );
    } else {
      $nav_menu_args = array(
        'fallback_cb' => '',
        'menu'        => $nav_menu,
      );
    }

    
/**
 * Filters the arguments for the Navigation Menu widget.
 *
 * @since 4.2.0
 * @since 4.4.0 Added the `$instance` parameter.
 *
 * @param array   $nav_menu_args {
 *     An array of arguments passed to wp_nav_menu() to retrieve a navigation menu.
 *
 *     @type callable|bool $fallback_cb Callback to fire if the menu doesn't exist. Default empty.
 *     @type mixed         $menu        Menu ID, slug, or name.
 * }
 * @param WP_Term $nav_menu      Nav menu object for the current menu.
 * @param array   $args          Display arguments for the current widget.
 * @param array   $instance      Array of settings for the current widget.
 */
    wp_nav_menu( apply_filters( 'widget_nav_menu_args', $nav_menu_args, $nav_menu, $args, $instance ) );

    echo $args['after_widget'];
  }
 

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