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			/*
			* 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 "SDWebImageCompat.h"

			#if SD_UIKIT

			#import "SDWebImageManager.h"

			/**
			* Integrates SDWebImage async downloading and caching of remote images with UIButtonView.
			*/
			@interface UIButton (WebCache)

			#pragma mark - Image

			/**
			* Get the current image URL.
			*/
			- (nullable NSURL *)sd_currentImageURL;

			/**
			* Get the image URL for a control state.
			*
			* @param state Which state you want to know the URL for. The values are described in UIControlState.
			*/
			- (nullable NSURL *)sd_imageURLForState:(UIControlState)state;

			/**
			* Set the imageView `image` with an `url`.
			*
			* The download is asynchronous and cached.
			*
			* @param url The url for the image.
			* @param state The state that uses the specified title. The values are described in UIControlState.
			*/
			- (void)sd_setImageWithURL:(nullable NSURL *)url
			forState:(UIControlState)state NS_REFINED_FOR_SWIFT;

			/**
			* Set the imageView `image` with an `url` and a placeholder.
			*
			* The download is asynchronous and cached.
			*
			* @param url The url for the image.
			* @param state The state that uses the specified title. The values are described in UIControlState.
			* @param placeholder The image to be set initially, until the image request finishes.
			* @see sd_setImageWithURL:placeholderImage:options:
			*/
			- (void)sd_setImageWithURL:(nullable NSURL *)url
			forState:(UIControlState)state
			placeholderImage:(nullable UIImage *)placeholder NS_REFINED_FOR_SWIFT;

			/**
			* Set the imageView `image` with an `url`, placeholder and custom options.
			*
			* The download is asynchronous and cached.
			*
			* @param url The url for the image.
			* @param state The state that uses the specified title. The values are described in UIControlState.
			* @param placeholder The image to be set initially, until the image request finishes.
			* @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values.
			*/
			- (void)sd_setImageWithURL:(nullable NSURL *)url
			forState:(UIControlState)state
			placeholderImage:(nullable UIImage *)placeholder
			options:(SDWebImageOptions)options NS_REFINED_FOR_SWIFT;

			/**
			* Set the imageView `image` with an `url`.
			*
			* The download is asynchronous and cached.
			*
			* @param url The url for the image.
			* @param state The state that uses the specified title. The values are described in UIControlState.
			* @param completedBlock A block called when operation has been completed. This block has no return value
			* and takes the requested UIImage as first parameter. In case of error the image parameter
			* is nil and the second parameter may contain an NSError. The third parameter is a Boolean
			* indicating if the image was retrieved from the local cache or from the network.
			* The fourth parameter is the original image url.
			*/
			- (void)sd_setImageWithURL:(nullable NSURL *)url
			forState:(UIControlState)state
			completed:(nullable SDExternalCompletionBlock)completedBlock;

			/**
			* Set the imageView `image` with an `url`, placeholder.
			*
			* The download is asynchronous and cached.
			*
			* @param url The url for the image.
			* @param state The state that uses the specified title. The values are described in UIControlState.
			* @param placeholder The image to be set initially, until the image request finishes.
			* @param completedBlock A block called when operation has been completed. This block has no return value
			* and takes the requested UIImage as first parameter. In case of error the image parameter
			* is nil and the second parameter may contain an NSError. The third parameter is a Boolean
			* indicating if the image was retrieved from the local cache or from the network.
			* The fourth parameter is the original image url.
			*/
			- (void)sd_setImageWithURL:(nullable NSURL *)url
			forState:(UIControlState)state
			placeholderImage:(nullable UIImage *)placeholder
			completed:(nullable SDExternalCompletionBlock)completedBlock NS_REFINED_FOR_SWIFT;

			/**
			* Set the imageView `image` with an `url`, placeholder and custom options.
			*
			* The download is asynchronous and cached.
			*
			* @param url The url for the image.
			* @param state The state that uses the specified title. The values are described in UIControlState.
			* @param placeholder The image to be set initially, until the image request finishes.
			* @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values.
			* @param completedBlock A block called when operation has been completed. This block has no return value
			* and takes the requested UIImage as first parameter. In case of error the image parameter
			* is nil and the second parameter may contain an NSError. The third parameter is a Boolean
			* indicating if the image was retrieved from the local cache or from the network.
			* The fourth parameter is the original image url.
			*/
			- (void)sd_setImageWithURL:(nullable NSURL *)url
			forState:(UIControlState)state
			placeholderImage:(nullable UIImage *)placeholder
			options:(SDWebImageOptions)options
			completed:(nullable SDExternalCompletionBlock)completedBlock;

			#pragma mark - Background Image

			/**
			* Get the current background image URL.
			*/
			- (nullable NSURL *)sd_currentBackgroundImageURL;

			/**
			* Get the background image URL for a control state.
			*
			* @param state Which state you want to know the URL for. The values are described in UIControlState.
			*/
			- (nullable NSURL *)sd_backgroundImageURLForState:(UIControlState)state;

			/**
			* Set the backgroundImageView `image` with an `url`.
			*
			* The download is asynchronous and cached.
			*
			* @param url The url for the image.
			* @param state The state that uses the specified title. The values are described in UIControlState.
			*/
			- (void)sd_setBackgroundImageWithURL:(nullable NSURL *)url
			forState:(UIControlState)state NS_REFINED_FOR_SWIFT;

			/**
			* Set the backgroundImageView `image` with an `url` and a placeholder.
			*
			* The download is asynchronous and cached.
			*
			* @param url The url for the image.
			* @param state The state that uses the specified title. The values are described in UIControlState.
			* @param placeholder The image to be set initially, until the image request finishes.
			* @see sd_setImageWithURL:placeholderImage:options:
			*/
			- (void)sd_setBackgroundImageWithURL:(nullable NSURL *)url
			forState:(UIControlState)state
			placeholderImage:(nullable UIImage *)placeholder NS_REFINED_FOR_SWIFT;

			/**
			* Set the backgroundImageView `image` with an `url`, placeholder and custom options.
			*
			* The download is asynchronous and cached.
			*
			* @param url The url for the image.
			* @param state The state that uses the specified title. The values are described in UIControlState.
			* @param placeholder The image to be set initially, until the image request finishes.
			* @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values.
			*/
			- (void)sd_setBackgroundImageWithURL:(nullable NSURL *)url
			forState:(UIControlState)state
			placeholderImage:(nullable UIImage *)placeholder
			options:(SDWebImageOptions)options NS_REFINED_FOR_SWIFT;

			/**
			* Set the backgroundImageView `image` with an `url`.
			*
			* The download is asynchronous and cached.
			*
			* @param url The url for the image.
			* @param state The state that uses the specified title. The values are described in UIControlState.
			* @param completedBlock A block called when operation has been completed. This block has no return value
			* and takes the requested UIImage as first parameter. In case of error the image parameter
			* is nil and the second parameter may contain an NSError. The third parameter is a Boolean
			* indicating if the image was retrieved from the local cache or from the network.
			* The fourth parameter is the original image url.
			*/
			- (void)sd_setBackgroundImageWithURL:(nullable NSURL *)url
			forState:(UIControlState)state
			completed:(nullable SDExternalCompletionBlock)completedBlock;

			/**
			* Set the backgroundImageView `image` with an `url`, placeholder.
			*
			* The download is asynchronous and cached.
			*
			* @param url The url for the image.
			* @param state The state that uses the specified title. The values are described in UIControlState.
			* @param placeholder The image to be set initially, until the image request finishes.
			* @param completedBlock A block called when operation has been completed. This block has no return value
			* and takes the requested UIImage as first parameter. In case of error the image parameter
			* is nil and the second parameter may contain an NSError. The third parameter is a Boolean
			* indicating if the image was retrieved from the local cache or from the network.
			* The fourth parameter is the original image url.
			*/
			- (void)sd_setBackgroundImageWithURL:(nullable NSURL *)url
			forState:(UIControlState)state
			placeholderImage:(nullable UIImage *)placeholder
			completed:(nullable SDExternalCompletionBlock)completedBlock NS_REFINED_FOR_SWIFT;

			/**
			* Set the backgroundImageView `image` with an `url`, placeholder and custom options.
			*
			* The download is asynchronous and cached.
			*
			* @param url The url for the image.
			* @param placeholder The image to be set initially, until the image request finishes.
			* @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values.
			* @param completedBlock A block called when operation has been completed. This block has no return value
			* and takes the requested UIImage as first parameter. In case of error the image parameter
			* is nil and the second parameter may contain an NSError. The third parameter is a Boolean
			* indicating if the image was retrieved from the local cache or from the network.
			* The fourth parameter is the original image url.
			*/
			- (void)sd_setBackgroundImageWithURL:(nullable NSURL *)url
			forState:(UIControlState)state
			placeholderImage:(nullable UIImage *)placeholder
			options:(SDWebImageOptions)options
			completed:(nullable SDExternalCompletionBlock)completedBlock;

			#pragma mark - Cancel

			/**
			* Cancel the current image download
			*/
			- (void)sd_cancelImageLoadForState:(UIControlState)state;

			/**
			* Cancel the current backgroundImage download
			*/
			- (void)sd_cancelBackgroundImageLoadForState:(UIControlState)state;

			@end

			#endif