/*

    File:       ImageDownloadOperation.h

    Contains:   Downloads an image to a directory.

    Written by: DTS

    Copyright:  Copyright (c) 2011-2013 Apple Inc. All Rights Reserved.

    Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Inc.

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                The Apple Software is provided by Apple on an "AS IS" basis. 

                APPLE MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING

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                THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN

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*/

#import "QHTTPOperation.h"

@interface ImageDownloadOperation : QHTTPOperation

{

    NSString *      _imagesDirPath;

    NSUInteger      _depth;

    NSString *      _imageFilePath;

}

+ (NSString *)defaultExtensionToMIMEType:(NSString *)type;

    // Returns a file extension appropriate for the specified image MIME type. 

    // This must return a non-nil value for the image to actually be downloaded. 

    // It currently handles GIF, PNG and JPEG.

- (id)initWithURL:(NSURL *)url imagesDirPath:(NSString *)imagesDirPath depth:(NSUInteger)depth;

    // Downloads the specific URL to a unique file within the specified 

    // directory.  depth is just along for the ride.

// Things that are configured by the init method and can't be changed.

@property (atomic, copy,   readonly ) NSString *    imagesDirPath;

@property (atomic, assign, readonly ) NSUInteger    depth;

// Things that are only meaningful after the operation is finished.

@property (atomic, copy,   readonly ) NSString *    imageFilePath;

@end