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Edit File: class-wp-customize-nav-menu-control.php
<?php /** * Customize API: WP_Customize_Nav_Menu_Control class * * @package WordPress * @subpackage Customize * @since 4.4.0 */ /** * Customize Nav Menu Control Class. * * @since 4.3.0 * * @see WP_Customize_Control */ class WP_Customize_Nav_Menu_Control extends WP_Customize_Control { /** * Control type. * * @since 4.3.0 * @var string */ public $type = 'nav_menu'; /** * Don't render the control's content - it uses a JS template instead. * * @since 4.3.0 */ public function render_content() {} /** * JS/Underscore template for the control UI. * * @since 4.3.0 */ public function content_template() { $add_items = __( 'Add Items' ); ?> <p class="new-menu-item-invitation"> <?php printf( /* translators: %s: "Add Items" button text. */ __( 'Time to add some links! Click “%s” to start putting pages, categories, and custom links in your menu. Add as many things as you would like.' ), $add_items ); ?> </p> <div class="customize-control-nav_menu-buttons"> <button type="button" class="button add-new-menu-item" aria-label="<?php esc_attr_e( 'Add or remove menu items' ); ?>" aria-expanded="false" aria-controls="available-menu-items"> <?php echo $add_items; ?> </button> <button type="button" class="button-link reorder-toggle" aria-label="<?php esc_attr_e( 'Reorder menu items' ); ?>" aria-describedby="reorder-items-desc-{{ data.menu_id }}"> <span class="reorder"><?php _e( 'Reorder' ); ?></span> <span class="reorder-done"><?php _e( 'Done' ); ?></span> </button> </div> <p class="screen-reader-text" id="reorder-items-desc-{{ data.menu_id }}"> <?php /* translators: Hidden accessibility text. */ _e( 'When in reorder mode, additional controls to reorder menu items will be available in the items list above.' ); ?> </p> <?php } /** * Return parameters for this control. * * @since 4.3.0 * * @return array Exported parameters. */ public function json() { $exported = parent::json(); $exported['menu_id'] = $this->setting->term_id; return $exported; } }