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.
   */
  
  #import <Foundation/Foundation.h>
  #import "SDWebImageCompat.h"
  #import "SDWebImageDefine.h"
  
  @class SDWebImageOptionsResult;
  
  typedef SDWebImageOptionsResult * _Nullable(^SDWebImageOptionsProcessorBlock)(NSURL * _Nullable url, SDWebImageOptions options, SDWebImageContext * _Nullable context);
  
  /**
   The options result contains both options and context.
   */
  @interface SDWebImageOptionsResult : NSObject
  
  /**
   WebCache options.
   */
  @property (nonatomic, assign, readonly) SDWebImageOptions options;
  
  /**
   Context options.
   */
  @property (nonatomic, copy, readonly, nullable) SDWebImageContext *context;
  
  /**
   Create a new options result.
  
   @param options options
   @param context context
   @return The options result contains both options and context.
   */
  - (nonnull instancetype)initWithOptions:(SDWebImageOptions)options context:(nullable SDWebImageContext *)context;
  
  @end
  
  /**
   This is the protocol for options processor.
   Options processor can be used, to control the final result for individual image request's `SDWebImageOptions` and `SDWebImageContext`
   Implements the protocol to have a global control for each indivadual image request's option.
   */
  @protocol SDWebImageOptionsProcessor <NSObject>
  
  /**
   Return the processed options result for specify image URL, with its options and context
  
   @param url The URL to the image
   @param options A mask to specify options to use for this request
   @param context A context contains different options to perform specify changes or processes, see `SDWebImageContextOption`. This hold the extra objects which `options` enum can not hold.
   @return The processed result, contains both options and context
   */
  - (nullable SDWebImageOptionsResult *)processedResultForURL:(nullable NSURL *)url
                                                      options:(SDWebImageOptions)options
                                                      context:(nullable SDWebImageContext *)context;
  
  @end
  
  /**
   A options processor class with block.
   */
  @interface SDWebImageOptionsProcessor : NSObject<SDWebImageOptionsProcessor>
  
  - (nonnull instancetype)initWithBlock:(nonnull SDWebImageOptionsProcessorBlock)block;
  + (nonnull instancetype)optionsProcessorWithBlock:(nonnull SDWebImageOptionsProcessorBlock)block;
  
  @end
  