$this->widget_cssclass, 'description' => $this->widget_description ); $this->WP_Widget( $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 * * @return void */ 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 */ public function widget_start( $args, $instance ) { extract( $args ); if ( $title = apply_filters( 'widget_title', $instance['title'], $instance, $this->id_base ) ) { echo $before_widget . $before_title . $title . $after_title; } else { echo $before_widget; } } /** * Output the html at the end of a widget * @param array $args */ public function widget_end( $args ) { extract( $args ); echo $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 ( ! $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 ( ! $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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