WP_Customize_Nav_Menu_Location_Control

19class WP_Customize_Nav_Menu_Location_Control extends WP_Customize_Control {20 21	/**22	 * Control type.23	 *24	 * @since 4.3.025	 * @var string26	 */27	public $type = 'nav_menu_location';28 29	/**30	 * Location ID.31	 *32	 * @since 4.3.033	 * @var string34	 */35	public $location_id = '';36 37	/**38	 * Refresh the parameters passed to JavaScript via JSON.39	 *40	 * @since 4.3.041	 *42	 * @see WP_Customize_Control::to_json()43	 */44	public function to_json() {45		parent::to_json();46		$this->json['locationId'] = $this->location_id;47	}48 49	/**50	 * Render content just like a normal select control.51	 *52	 * @since 4.3.053	 * @since 4.9.0 Added a button to create menus.54	 */55	public function render_content() {56		if ( empty( $this->choices ) ) {57			return;58		}59 60		$value_hidden_class    = '';61		$no_value_hidden_class = '';62		if ( $this->value() ) {63			$value_hidden_class = ' hidden';64		} else {65			$no_value_hidden_class = ' hidden';66		}67		?>68		<label>69			<?php if ( ! empty( $this->label ) ) : ?>70			<span class="customize-control-title"><?php echo esc_html( $this->label ); ?></span>71			<?php endif; ?>72 73			<?php if ( ! empty( $this->description ) ) : ?>74			<span class="description customize-control-description"><?php echo $this->description; ?></span>75			<?php endif; ?>76 77			<select <?php $this->link(); ?>>78				<?php79				foreach ( $this->choices as $value => $label ) :80					echo '<option value="' . esc_attr( $value ) . '"' . selected( $this->value(), $value, false ) . '>' . esc_html( $label ) . '</option>';81				endforeach;82				?>83			</select>84		</label>85		<button type="button" class="button-link create-menu<?php echo $value_hidden_class; ?>" data-location-id="<?php echo esc_attr( $this->location_id ); ?>" aria-label="<?php esc_attr_e( 'Create a menu for this location' ); ?>"><?php _e( '+ Create New Menu' ); ?></button>86		<button type="button" class="button-link edit-menu<?php echo $no_value_hidden_class; ?>" aria-label="<?php esc_attr_e( 'Edit selected menu' ); ?>"><?php _e( 'Edit Menu' ); ?></button>87		<?php88	}89}