$this->widget_cssclass,
'description' => $this->widget_description
);
parent::__construct( $this->widget_id, $this->widget_name, $widget_ops );
add_action( 'save_post', array( $this, 'flush_widget_cache' ) );
add_action( 'deleted_post', array( $this, 'flush_widget_cache' ) );
add_action( 'switch_theme', array( $this, 'flush_widget_cache' ) );
}
/**
* get_cached_widget function.
*/
public function get_cached_widget( $args ) {
$cache = wp_cache_get( apply_filters( 'woocommerce_cached_widget_id', $this->widget_id ), 'widget' );
if ( ! is_array( $cache ) ) {
$cache = array();
}
if ( isset( $cache[ $args['widget_id'] ] ) ) {
echo $cache[ $args['widget_id'] ];
return true;
}
return false;
}
/**
* Cache the widget
*
* @param array $args
* @param string $content
* @return string the content that was cached
*/
public function cache_widget( $args, $content ) {
wp_cache_set( apply_filters( 'woocommerce_cached_widget_id', $this->widget_id ), array( $args['widget_id'] => $content ), 'widget' );
return $content;
}
/**
* Flush the cache
*/
public function flush_widget_cache() {
wp_cache_delete( apply_filters( 'woocommerce_cached_widget_id', $this->widget_id ), 'widget' );
}
/**
* Output the html at the start of a widget
*
* @param array $args
* @return string
*/
public function widget_start( $args, $instance ) {
echo $args['before_widget'];
if ( $title = apply_filters( 'widget_title', empty( $instance['title'] ) ? '' : $instance['title'], $instance, $this->id_base ) ) {
echo $args['before_title'] . $title . $args['after_title'];
}
}
/**
* Output the html at the end of a widget
*
* @param array $args
* @return string
*/
public function widget_end( $args ) {
echo $args['after_widget'];
}
/**
* update function.
*
* @see WP_Widget->update
* @param array $new_instance
* @param array $old_instance
* @return array
*/
public function update( $new_instance, $old_instance ) {
$instance = $old_instance;
if ( empty( $this->settings ) ) {
return $instance;
}
foreach ( $this->settings as $key => $setting ) {
if ( isset( $new_instance[ $key ] ) ) {
$instance[ $key ] = sanitize_text_field( $new_instance[ $key ] );
} elseif ( 'checkbox' === $setting['type'] ) {
$instance[ $key ] = 0;
}
}
$this->flush_widget_cache();
return $instance;
}
/**
* form function.
*
* @see WP_Widget->form
* @param array $instance
*/
public function form( $instance ) {
if ( empty( $this->settings ) ) {
return;
}
foreach ( $this->settings as $key => $setting ) {
$value = isset( $instance[ $key ] ) ? $instance[ $key ] : $setting['std'];
switch ( $setting['type'] ) {
case 'text' :
?>
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