WordPress/wp-includes/widgets/class-wp-widget-search.php

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<?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 {
public function __construct() {
$widget_ops = array('classname' => 'widget_search', 'description' => __( "A search form for your site.") );
parent::__construct( 'search', _x( 'Search', 'Search widget' ), $widget_ops );
}
/**
* @param array $args
* @param array $instance
*/
public function widget( $args, $instance ) {
/** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */
$title = apply_filters( 'widget_title', empty( $instance['title'] ) ? '' : $instance['title'], $instance, $this->id_base );
echo $args['before_widget'];
if ( $title ) {
echo $args['before_title'] . $title . $args['after_title'];
}
// Use current theme search form if it exists
get_search_form();
echo $args['after_widget'];
}
/**
* @param array $instance
*/
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:'); ?> <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); ?>" /></label></p>
<?php
}
/**
* @param array $new_instance
* @param array $old_instance
* @return array
*/
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;
}
}