<?php

/**

 * Widget API: WP_Widget_Search class

 *

 * @package WordPress

 * @subpackage Widgets

 * @since 4.4.0

 */

/**

 * Core class used to implement a Search widget.

 *

 * @since 2.8.0

 *

 * @see WP_Widget

 */

class WP_Widget_Search extends WP_Widget {

	/**

	 * Sets up a new Search widget instance.

	 *

	 * @since 2.8.0

	 */

	public function __construct() {

		$widget_ops = array(

			'classname'                   => 'widget_search',

			'description'                 => __( 'A search form for your site.' ),

			'customize_selective_refresh' => true,

			'show_instance_in_rest'       => true,

		);

		parent::__construct( 'search', _x( 'Search', 'Search widget' ), $widget_ops );

	}

	/**

	 * Outputs the content for the current Search widget instance.

	 *

	 * @since 2.8.0

	 *

	 * @param array $args     Display arguments including 'before_title', 'after_title',

	 *                        'before_widget', and 'after_widget'.

	 * @param array $instance Settings for the current Search widget instance.

	 */

	public function widget( $args, $instance ) {

		$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'];

		}

		get_search_form();

		echo $args['after_widget'];

	}

	/**

	 * Outputs the settings form for the Search widget.

	 *

	 * @since 2.8.0

	 *

	 * @param array $instance Current settings.

	 */

	public function form( $instance ) {

		$instance = wp_parse_args( (array) $instance, array( 'title' => '' ) );

		$title    = $instance['title'];

		?>

		<p>

			<label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:' ); ?></label>

			<input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo esc_attr( $title ); ?>" />

		</p>

		<?php

	}

	/**

	 * Handles updating settings for the current Search widget instance.

	 *

	 * @since 2.8.0

	 *

	 * @param array $new_instance New settings for this instance as input by the user via

	 *                            WP_Widget::form().

	 * @param array $old_instance Old settings for this instance.

	 * @return array Updated settings.

	 */

	public function update( $new_instance, $old_instance ) {

		$instance          = $old_instance;

		$new_instance      = wp_parse_args( (array) $new_instance, array( 'title' => '' ) );

		$instance['title'] = sanitize_text_field( $new_instance['title'] );

		return $instance;

	}

}