text: /*
   * Copyright (c) Facebook, Inc. and its affiliates.
   *
   * This source code is licensed under the MIT license found in the
   * LICENSE file in the root directory of this source tree.
   */
  
  #import <UIKit/UIKit.h>
  
  #import <React/RCTBridge.h>
  #import <React/RCTResizeMode.h>
  #import <React/RCTURLRequestHandler.h>
  #import <React/RCTImageURLLoader.h>
  
  /**
   * Provides the interface needed to register an image decoder. Image decoders
   * are also bridge modules, so should be registered using RCT_EXPORT_MODULE().
   */
  @protocol RCTImageDataDecoder <RCTBridgeModule>
  
  /**
   * Indicates whether this handler is capable of decoding the specified data.
   * Typically the handler would examine some sort of header data to determine
   * this.
   */
  - (BOOL)canDecodeImageData:(NSData *)imageData;
  
  /**
   * Decode an image from the data object. The method should call the
   * completionHandler when the decoding operation  has finished. The method
   * should also return a cancellation block, if applicable.
   *
   * If you provide a custom image decoder, you most implement scheduling yourself,
   * to avoid decoding large amounts of images at the same time.
   */
  - (RCTImageLoaderCancellationBlock)decodeImageData:(NSData *)imageData
                                                size:(CGSize)size
                                               scale:(CGFloat)scale
                                          resizeMode:(RCTResizeMode)resizeMode
                                   completionHandler:(RCTImageLoaderCompletionBlock)completionHandler;
  
  @optional
  
  /**
   * If more than one RCTImageDataDecoder responds YES to `-canDecodeImageData:`
   * then `decoderPriority` is used to determine which one to use. The decoder
   * with the highest priority will be selected. Default priority is zero.
   * If two or more valid decoders have the same priority, the selection order is
   * undefined.
   */
  - (float)decoderPriority;
  
  @end
  