'amadeus_video_widget', 'description' => __( 'Display an oEmbed video.', 'amadeus' ) ); parent::__construct( 'amadeus_video', __( 'Amadeus: Video', 'amadeus' ), $widget_ops ); $this->alt_option_name = 'amadeus_video'; 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' ) ); } /** * Outputs the options form on admin * * @param array $instance The widget options. */ public function form( $instance ) { // Check values $title = isset( $instance['title'] ) ? esc_attr( $instance['title'] ) : ''; $url = isset( $instance['url'] ) ? esc_url( $instance['url'] ) : ''; ?>

flush_widget_cache(); $alloptions = wp_cache_get( 'alloptions', 'options' ); if ( isset( $alloptions['amadeus_video'] ) ) { delete_option( 'amadeus_video' ); } return $instance; } /** * Delete cache */ public function flush_widget_cache() { wp_cache_delete( 'amadeus_video', 'widget' ); } /** * Outputs the content of the widget * * @param array $args Widget arguments. * @param array $instance Widget instance. */ public function widget( $args, $instance ) { $cache = array(); if ( ! $this->is_preview() ) { $cache = wp_cache_get( 'amadeus_video', 'widget' ); } if ( ! is_array( $cache ) ) { $cache = array(); } if ( ! isset( $args['widget_id'] ) ) { $args['widget_id'] = $this->id; } if ( isset( $cache[ $args['widget_id'] ] ) ) { echo $cache[ $args['widget_id'] ]; return; } ob_start(); $title = ( ! empty( $instance['title'] ) ) ? $instance['title'] : ''; $title = apply_filters( 'widget_title', $title, $instance, $this->id_base ); $url = isset( $instance['url'] ) ? esc_url( $instance['url'] ) : ''; if ( ! empty( $args['before_widget'] ) ) { echo $args['before_widget']; } if ( ! empty( $title ) ) { if ( ! empty( $args['before_title'] ) ) { echo $args['before_title']; } echo $title; if ( ! empty( $args['after_title'] ) ) { echo $args['after_title']; } } if ( ( $url ) ) { echo wp_oembed_get( $url ); } if ( ! empty( $args['after_widget'] ) ) { echo $args['after_widget']; } if ( ! $this->is_preview() ) { $cache[ $args['widget_id'] ] = ob_get_flush(); wp_cache_set( 'amadeus_video', $cache, 'widget' ); } else { ob_end_flush(); } } }