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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Disable direct access/execution to/of the widget code.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                if ( ! defined( 'ABSPATH' ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	exit;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                if ( ! class_exists( 'Jetpack_Flickr_Widget' ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Flickr Widget  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Display your recent Flickr photos.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	class Jetpack_Flickr_Widget extends WP_Widget { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		 * Constructor.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		 */  | 
            
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
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                View Code Duplication | 
                		function __construct() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			parent::__construct(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				'flickr',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				/** This filter is documented in modules/widgets/facebook-likebox.php */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				apply_filters( 'jetpack_widget_name', esc_html__( 'Flickr', 'jetpack' ) ),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				array(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					'description' => esc_html__( 'Display your recent Flickr photos.', 'jetpack' ),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					'customize_selective_refresh' => true,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				array()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			if ( is_active_widget( false, false, $this->id_base ) || is_customize_preview() ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_style' ) );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		 * Enqueue style.  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                		 */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		function enqueue_style() { | 
            
            
                                                                        
                            
            
                                    
            
            
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                			wp_enqueue_style( 'flickr-widget-style', plugins_url( 'flickr/style.css', __FILE__ ), array(), '20170405' );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		 * Return an associative array of default values.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		 * These values are used in new widgets.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		 * @return array Default values for the widget options.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		public function defaults() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			return array(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				'title'             => esc_html__( 'Flickr Photos', 'jetpack' ),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				'items'             => 3,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				'flickr_image_size' => 'thumbnail',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				'flickr_rss_url'    => ''  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		 * Front-end display of the widget.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		 * @param array $args     Widget arguments.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		 * @param array $instance Saved values from database.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		public function widget( $args, $instance ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$instance = wp_parse_args( $instance, $this->defaults() );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$image_size_string = 'small' == $instance['flickr_image_size'] ? '_m.jpg' : '_t.jpg';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			if ( ! empty( $instance['flickr_rss_url'] ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				/*  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				 * Parse the URL, and rebuild a URL that's sure to display images.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				 * Some Flickr Feeds do not display images by default.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				$flickr_parameters = parse_url( htmlspecialchars_decode( $instance['flickr_rss_url'] ) );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				// Is it a Flickr Feed.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				if (  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					! empty( $flickr_parameters['host'] )  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					&& ! empty( $flickr_parameters['query'] )  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					&& false !== strpos( $flickr_parameters['host'], 'flickr' )  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					parse_str( $flickr_parameters['query'], $vars );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					// Do we have an ID in the feed? Let's continue.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					if ( isset( $vars['id'] ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                						// Flickr Feeds can be used for groups or for individuals.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                						if (  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                							! empty( $flickr_parameters['path'] )  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                							&& false !== strpos( $flickr_parameters['path'], 'groups' )  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                						) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                							$feed_url = 'https://api.flickr.com/services/feeds/groups_pool.gne';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                						} else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                							$feed_url = 'https://api.flickr.com/services/feeds/photos_public.gne';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                						}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                						// Build our new RSS feed.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                						$rss_url = sprintf(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                							'%1$s?id=%2$s&format=rss_200_enc',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                							esc_url( $feed_url ),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                							esc_attr( $vars['id'] )  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                						);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			} // End if().  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			// Still no RSS feed URL? Get a default feed from Flickr to grab interesting photos.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			if ( empty( $rss_url ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				$rss_url = 'https://api.flickr.com/services/feeds/photos_interesting.gne?format=rss_200';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$rss = fetch_feed( $rss_url );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$photos = '';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			if ( ! is_wp_error( $rss ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				foreach ( $rss->get_items( 0, $instance['items'] ) as $photo ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					if ( $enclosure = $photo->get_enclosure() ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                						$src = str_replace( '_s.jpg', $image_size_string, $enclosure->get_thumbnail() );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					} else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                						$src = preg_match( '/src="(.*?)"/i', $photo->get_description(), $p );  | 
            
                            
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                						$src = str_replace( '_m.jpg', $image_size_string, $p[1] );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					$photos .= '<a href="' . esc_url( $photo->get_permalink(), array( 'http', 'https' ) ) . '">';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					$photos .= '<img src="' . esc_url( $src, array( 'http', 'https' ) ) . '" ';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    128
                 | 
                                    
                                                     | 
                
                 | 
                					$photos .= 'alt="' . esc_attr( $photo->get_title() ) . '" ';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    129
                 | 
                                    
                                                     | 
                
                 | 
                					$photos .= 'border="0" ';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    130
                 | 
                                    
                                                     | 
                
                 | 
                					$photos .= 'title="' . esc_attr( $photo->get_title() ) . '" ';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    131
                 | 
                                    
                                                     | 
                
                 | 
                					$photos .= ' /></a><br /><br />';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    132
                 | 
                                    
                                                     | 
                
                 | 
                				}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    133
                 | 
                                    
                                                     | 
                
                 | 
                				if ( ! empty( $photos ) && class_exists( 'Jetpack_Photon' ) && Jetpack::is_module_active( 'photon' ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    134
                 | 
                                    
                                                     | 
                
                 | 
                					$photos = Jetpack_Photon::filter_the_content( $photos );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    135
                 | 
                                    
                                                     | 
                
                 | 
                				}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    136
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    137
                 | 
                                    
                                                     | 
                
                 | 
                				$flickr_home = $rss->get_link();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    138
                 | 
                                    
                                                     | 
                
                 | 
                			}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    139
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    140
                 | 
                                    
                                                     | 
                
                 | 
                			echo $args['before_widget'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    141
                 | 
                                    
                                                     | 
                
                 | 
                			if ( empty( $photos ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    142
                 | 
                                    
                                                     | 
                
                 | 
                				if ( current_user_can( 'edit_theme_options' ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    143
                 | 
                                    
                                                     | 
                
                 | 
                					printf(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    144
                 | 
                                    
                                                     | 
                
                 | 
                						'<p>%1$s<br />%2$s</p>',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    145
                 | 
                                    
                                                     | 
                
                 | 
                						esc_html__( 'There are no photos to display. Make sure your Flickr feed URL is correct, and that your pictures are publicly accessible.', 'jetpack' ),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    146
                 | 
                                    
                                                     | 
                
                 | 
                						esc_html__( '(Only admins can see this message)', 'jetpack' )  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    147
                 | 
                                    
                                                     | 
                
                 | 
                					);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    148
                 | 
                                    
                                                     | 
                
                 | 
                				}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    149
                 | 
                                    
                                                     | 
                
                 | 
                			} else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    150
                 | 
                                    
                                                     | 
                
                 | 
                				echo $args['before_title'] . esc_html( $instance['title'] ) . $args['after_title'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    151
                 | 
                                    
                                                     | 
                
                 | 
                				require( dirname( __FILE__ ) . '/flickr/widget.php' );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    152
                 | 
                                    
                                                     | 
                
                 | 
                			}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    153
                 | 
                                    
                                                     | 
                
                 | 
                			echo $args['after_widget'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    154
                 | 
                                    
                                                     | 
                
                 | 
                			/** This action is already documented in modules/widgets/gravatar-profile.php */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    155
                 | 
                                    
                                                     | 
                
                 | 
                			do_action( 'jetpack_stats_extra', 'widget_view', 'flickr' );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    156
                 | 
                                    
                                                     | 
                
                 | 
                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    157
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    158
                 | 
                                    
                                                     | 
                
                 | 
                		/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    159
                 | 
                                    
                                                     | 
                
                 | 
                		 * Back-end widget form.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    160
                 | 
                                    
                                                     | 
                
                 | 
                		 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    161
                 | 
                                    
                                                     | 
                
                 | 
                		 * @param array $instance Previously saved values from database.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    162
                 | 
                                    
                                                     | 
                
                 | 
                		 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    163
                 | 
                                    
                                                     | 
                
                 | 
                		public function form( $instance ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    164
                 | 
                                    
                                                     | 
                
                 | 
                			$instance = wp_parse_args( $instance, $this->defaults() );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    165
                 | 
                                    
                                                     | 
                
                 | 
                			require( dirname( __FILE__ ) . '/flickr/form.php' );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    166
                 | 
                                    
                                                     | 
                
                 | 
                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    167
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    168
                 | 
                                    
                                                     | 
                
                 | 
                		/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    169
                 | 
                                    
                                                     | 
                
                 | 
                		 * Sanitize widget form values as they are saved.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    170
                 | 
                                    
                                                     | 
                
                 | 
                		 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    171
                 | 
                                    
                                                     | 
                
                 | 
                		 * @param  array $new_instance Values just sent to be saved.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    172
                 | 
                                    
                                                     | 
                
                 | 
                		 * @param  array $old_instance Previously saved values from database.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    173
                 | 
                                    
                                                     | 
                
                 | 
                		 * @return array Updated safe values to be saved.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    174
                 | 
                                    
                                                     | 
                
                 | 
                		 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    175
                 | 
                                    
                                                     | 
                
                 | 
                		public function update( $new_instance, $old_instance ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    176
                 | 
                                    
                                                     | 
                
                 | 
                			$instance = array();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    177
                 | 
                                    
                                                     | 
                
                 | 
                			$defaults = $this->defaults();  | 
            
                            
                    | 
                        
                     | 
                     | 
                     | 
                    
                                                                                                    
                        
                         
                                                                                        
                                                                                     
                     | 
                
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    178
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    179
                 | 
                                    
                                                     | 
                
                 | 
                			if ( isset( $new_instance['title'] ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    180
                 | 
                                    
                                                     | 
                
                 | 
                				$instance['title'] = wp_kses( $new_instance['title'], array() );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    181
                 | 
                                    
                                                     | 
                
                 | 
                			}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    182
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    183
                 | 
                                    
                                                     | 
                
                 | 
                			if ( isset( $new_instance['items'] ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    184
                 | 
                                    
                                                     | 
                
                 | 
                				$instance['items'] = intval( $new_instance['items'] );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    185
                 | 
                                    
                                                     | 
                
                 | 
                			}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    186
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    187
                 | 
                                    
                                                     | 
                
                 | 
                			if (  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    188
                 | 
                                    
                                                     | 
                
                 | 
                				isset( $new_instance['flickr_image_size'] ) &&  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    189
                 | 
                                    
                                                     | 
                
                 | 
                				in_array( $new_instance['flickr_image_size'], array( 'thumbnail', 'small' ) )  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    190
                 | 
                                    
                                                     | 
                
                 | 
                			) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    191
                 | 
                                    
                                                     | 
                
                 | 
                				$instance['flickr_image_size'] = $new_instance['flickr_image_size'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    192
                 | 
                                    
                                                     | 
                
                 | 
                			} else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    193
                 | 
                                    
                                                     | 
                
                 | 
                				$instance['flickr_image_size'] = 'thumbnail';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    194
                 | 
                                    
                                                     | 
                
                 | 
                			}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    195
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    196
                 | 
                                    
                                                     | 
                
                 | 
                			if ( isset( $new_instance['flickr_rss_url'] ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    197
                 | 
                                    
                                                     | 
                
                 | 
                				$instance['flickr_rss_url'] = esc_url( $new_instance['flickr_rss_url'], array( 'http', 'https' ) );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    198
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    199
                 | 
                                    
                                                     | 
                
                 | 
                				if ( strlen( $instance['flickr_rss_url'] ) < 10 ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    200
                 | 
                                    
                                                     | 
                
                 | 
                					$instance['flickr_rss_url'] = '';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    201
                 | 
                                    
                                                     | 
                
                 | 
                				}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    202
                 | 
                                    
                                                     | 
                
                 | 
                			}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    203
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    204
                 | 
                                    
                                                     | 
                
                 | 
                			return $instance;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    205
                 | 
                                    
                                                     | 
                
                 | 
                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    206
                 | 
                                    
                                                     | 
                
                 | 
                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    207
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    208
                 | 
                                    
                                                     | 
                
                 | 
                	// Register Jetpack_Flickr_Widget widget.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    209
                 | 
                                    
                                                     | 
                
                 | 
                	function jetpack_register_flickr_widget() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    210
                 | 
                                    
                                                     | 
                
                 | 
                		register_widget( 'Jetpack_Flickr_Widget' );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    211
                 | 
                                    
                                                     | 
                
                 | 
                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    212
                 | 
                                    
                                                     | 
                
                 | 
                	add_action( 'widgets_init', 'jetpack_register_flickr_widget' );  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
                | 
                    213
                 | 
                                    
                                                     | 
                
                 | 
                }  | 
            
            
                                                        
            
                                    
            
            
                | 
                    214
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                        
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.