text: /*
   * This file is part of the SDWebImage package.
   * (c) Olivier Poitrey <rs@dailymotion.com>
   *
   * For the full copyright and license information, please view the LICENSE
   * file that was distributed with this source code.
   */
  
  @class SDWebImageManager;
  @class UIImage;
  
  /**
   * Delegate protocol for SDWebImageManager
   */
  @protocol SDWebImageManagerDelegate <NSObject>
  
  @optional
  
  /**
   * Called while an image is downloading with an partial image object representing the currently downloaded portion of the image.
   * This delegate is called only if ImageIO is available and `SDWebImageProgressiveDownload` option has been used.
   *
   * @param imageManager The image manager
   * @param image The retrived image object
   * @param url The image URL used to retrive the image
   * @param info The user info dictionnary
   */
  - (void)webImageManager:(SDWebImageManager *)imageManager didProgressWithPartialImage:(UIImage *)image forURL:(NSURL *)url userInfo:(NSDictionary *)info;
  - (void)webImageManager:(SDWebImageManager *)imageManager didProgressWithPartialImage:(UIImage *)image forURL:(NSURL *)url;
  
  /**
   * Called when image download is completed successfuly.
   *
   * @param imageManager The image manager
   * @param image The retrived image object
   * @param url The image URL used to retrive the image
   * @param info The user info dictionnary
   */
  - (void)webImageManager:(SDWebImageManager *)imageManager didFinishWithImage:(UIImage *)image forURL:(NSURL *)url userInfo:(NSDictionary *)info;
  - (void)webImageManager:(SDWebImageManager *)imageManager didFinishWithImage:(UIImage *)image forURL:(NSURL *)url;
  - (void)webImageManager:(SDWebImageManager *)imageManager didFinishWithImage:(UIImage *)image;
  
  /**
   * Called when an error occurred.
   *
   * @param imageManager The image manager
   * @param error The error
   * @param url The image URL used to retrive the image
   * @param info The user info dictionnary
   */
  - (void)webImageManager:(SDWebImageManager *)imageManager didFailWithError:(NSError *)error forURL:(NSURL *)url userInfo:(NSDictionary *)info;
  - (void)webImageManager:(SDWebImageManager *)imageManager didFailWithError:(NSError *)error forURL:(NSURL *)url;
  - (void)webImageManager:(SDWebImageManager *)imageManager didFailWithError:(NSError *)error;
  
  @end
  