original_string: public function getPreview()
      {
          $url = trim($this->value);
          if (!$this->display_video || !$url) {
              return false;
          }
          $obj = VideoLink::create()->setValue($url);
          if ($obj->iFrameURL) {
              return $obj->Iframe($this->display_video, $this->preview_height);
          }
      }
code: public function getPreview()
      {
          $url = trim($this->value);
          if (!$this->display_video || !$url) {
              return false;
          }
          $obj = VideoLink::create()->setValue($url);
          if ($obj->iFrameURL) {
              return $obj->Iframe($this->display_video, $this->preview_height);
          }
      }
code_tokens: public function getPreview ( ) { $ url = trim ( $ this -> value ) ; if ( ! $ this -> display_video || ! $ url ) { return false ; } $ obj = VideoLink :: create ( ) -> setValue ( $ url ) ; if ( $ obj -> iFrameURL ) { return $ obj -> Iframe ( $ this -> display_video , $ this -> preview_height ) ; } }
docstring: Return video preview
  
  @param  Null
  @return VideoLink
docstring_tokens: Return video preview