Walker_Nav_Menu_Checklist::start_el( string $output, WP_Post $data_object, int $depth, stdClass $args = null, int $current_object_id )

Source

public function start_el( &$output, $data_object, $depth = 0, $args = null, $current_object_id = 0 ) {
	global $_nav_menu_placeholder, $nav_menu_selected_id;

	// Restores the more descriptive, specific name for use within this method.
	$menu_item = $data_object;

	$_nav_menu_placeholder = ( 0 > $_nav_menu_placeholder ) ? (int) $_nav_menu_placeholder - 1 : -1;
	$possible_object_id    = isset( $menu_item->post_type ) && 'nav_menu_item' === $menu_item->post_type ? $menu_item->object_id : $_nav_menu_placeholder;
	$possible_db_id        = ( ! empty( $menu_item->ID ) ) && ( 0 < $possible_object_id ) ? (int) $menu_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( $menu_item->front_or_home ) ) {
		$output .= ' add-to-top';
	}

	$output .= '" name="menu-item[' . $possible_object_id . '][menu-item-object-id]" value="' . esc_attr( $menu_item->object_id ) . '" /> ';

	if ( ! empty( $menu_item->label ) ) {
		$title = $menu_item->label;
	} elseif ( isset( $menu_item->post_type ) ) {
		/** This filter is documented in wp-includes/post-template.php */
		$title = apply_filters( 'the_title', $menu_item->post_title, $menu_item->ID );
	}

	$output .= isset( $title ) ? esc_html( $title ) : esc_html( $menu_item->title );

	if ( empty( $menu_item->label ) && isset( $menu_item->post_type ) && 'page' === $menu_item->post_type ) {
		// Append post states.
		$output .= _post_states( $menu_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( $menu_item->object ) . '" />';
	$output .= '<input type="hidden" class="menu-item-parent-id" name="menu-item[' . $possible_object_id . '][menu-item-parent-id]" value="' . esc_attr( $menu_item->menu_item_parent ) . '" />';
	$output .= '<input type="hidden" class="menu-item-type" name="menu-item[' . $possible_object_id . '][menu-item-type]" value="' . esc_attr( $menu_item->type ) . '" />';
	$output .= '<input type="hidden" class="menu-item-title" name="menu-item[' . $possible_object_id . '][menu-item-title]" value="' . esc_attr( $menu_item->title ) . '" />';
	$output .= '<input type="hidden" class="menu-item-url" name="menu-item[' . $possible_object_id . '][menu-item-url]" value="' . esc_attr( $menu_item->url ) . '" />';
	$output .= '<input type="hidden" class="menu-item-target" name="menu-item[' . $possible_object_id . '][menu-item-target]" value="' . esc_attr( $menu_item->target ) . '" />';
	$output .= '<input type="hidden" class="menu-item-attr-title" name="menu-item[' . $possible_object_id . '][menu-item-attr-title]" value="' . esc_attr( $menu_item->attr_title ) . '" />';
	$output .= '<input type="hidden" class="menu-item-classes" name="menu-item[' . $possible_object_id . '][menu-item-classes]" value="' . esc_attr( implode( ' ', $menu_item->classes ) ) . '" />';
	$output .= '<input type="hidden" class="menu-item-xfn" name="menu-item[' . $possible_object_id . '][menu-item-xfn]" value="' . esc_attr( $menu_item->xfn ) . '" />';
}

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