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// UIButton+AFNetworking.m
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//
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// Copyright (c) 2013-2015 AFNetworking (http://afnetworking.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#import "UIButton+AFNetworking.h"
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#import <objc/runtime.h>
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#if defined(__IPHONE_OS_VERSION_MIN_REQUIRED)
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#import "AFURLResponseSerialization.h"
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#import "AFHTTPRequestOperation.h"
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#import "UIImageView+AFNetworking.h"
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@interface UIButton (_AFNetworking)
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@end
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@implementation UIButton (_AFNetworking)
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+ (NSOperationQueue *)af_sharedImageRequestOperationQueue {
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static NSOperationQueue *_af_sharedImageRequestOperationQueue = nil;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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_af_sharedImageRequestOperationQueue = [[NSOperationQueue alloc] init];
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_af_sharedImageRequestOperationQueue.maxConcurrentOperationCount = NSOperationQueueDefaultMaxConcurrentOperationCount;
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});
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return _af_sharedImageRequestOperationQueue;
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}
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#pragma mark -
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static char AFImageRequestOperationNormal;
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static char AFImageRequestOperationHighlighted;
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static char AFImageRequestOperationSelected;
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static char AFImageRequestOperationDisabled;
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static const char * af_imageRequestOperationKeyForState(UIControlState state) {
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switch (state) {
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case UIControlStateHighlighted:
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return &AFImageRequestOperationHighlighted;
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case UIControlStateSelected:
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return &AFImageRequestOperationSelected;
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case UIControlStateDisabled:
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return &AFImageRequestOperationDisabled;
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case UIControlStateNormal:
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default:
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return &AFImageRequestOperationNormal;
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}
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}
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- (AFHTTPRequestOperation *)af_imageRequestOperationForState:(UIControlState)state {
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return (AFHTTPRequestOperation *)objc_getAssociatedObject(self, af_imageRequestOperationKeyForState(state));
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}
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- (void)af_setImageRequestOperation:(AFHTTPRequestOperation *)imageRequestOperation
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forState:(UIControlState)state
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{
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objc_setAssociatedObject(self, af_imageRequestOperationKeyForState(state), imageRequestOperation, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
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}
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#pragma mark -
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static char AFBackgroundImageRequestOperationNormal;
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static char AFBackgroundImageRequestOperationHighlighted;
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static char AFBackgroundImageRequestOperationSelected;
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static char AFBackgroundImageRequestOperationDisabled;
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static const char * af_backgroundImageRequestOperationKeyForState(UIControlState state) {
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switch (state) {
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case UIControlStateHighlighted:
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return &AFBackgroundImageRequestOperationHighlighted;
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case UIControlStateSelected:
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return &AFBackgroundImageRequestOperationSelected;
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case UIControlStateDisabled:
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return &AFBackgroundImageRequestOperationDisabled;
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case UIControlStateNormal:
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default:
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return &AFBackgroundImageRequestOperationNormal;
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}
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}
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- (AFHTTPRequestOperation *)af_backgroundImageRequestOperationForState:(UIControlState)state {
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return (AFHTTPRequestOperation *)objc_getAssociatedObject(self, af_backgroundImageRequestOperationKeyForState(state));
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}
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- (void)af_setBackgroundImageRequestOperation:(AFHTTPRequestOperation *)imageRequestOperation
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forState:(UIControlState)state
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{
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objc_setAssociatedObject(self, af_backgroundImageRequestOperationKeyForState(state), imageRequestOperation, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
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}
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@end
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#pragma mark -
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@implementation UIButton (AFNetworking)
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+ (id <AFImageCache>)sharedImageCache {
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wgnu"
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return objc_getAssociatedObject(self, @selector(sharedImageCache)) ?: [UIImageView sharedImageCache];
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#pragma clang diagnostic pop
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}
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+ (void)setSharedImageCache:(id <AFImageCache>)imageCache {
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objc_setAssociatedObject(self, @selector(sharedImageCache), imageCache, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
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}
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#pragma mark -
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- (id <AFURLResponseSerialization>)imageResponseSerializer {
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static id <AFURLResponseSerialization> _af_defaultImageResponseSerializer = nil;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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_af_defaultImageResponseSerializer = [AFImageResponseSerializer serializer];
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});
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wgnu"
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return objc_getAssociatedObject(self, @selector(imageResponseSerializer)) ?: _af_defaultImageResponseSerializer;
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#pragma clang diagnostic pop
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}
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- (void)setImageResponseSerializer:(id <AFURLResponseSerialization>)serializer {
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objc_setAssociatedObject(self, @selector(imageResponseSerializer), serializer, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
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}
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#pragma mark -
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- (void)setImageForState:(UIControlState)state
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withURL:(NSURL *)url
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{
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[self setImageForState:state withURL:url placeholderImage:nil];
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}
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- (void)setImageForState:(UIControlState)state
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withURL:(NSURL *)url
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placeholderImage:(UIImage *)placeholderImage
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{
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NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
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[request addValue:@"image/*" forHTTPHeaderField:@"Accept"];
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[self setImageForState:state withURLRequest:request placeholderImage:placeholderImage success:nil failure:nil];
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}
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- (void)setImageForState:(UIControlState)state
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withURLRequest:(NSURLRequest *)urlRequest
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placeholderImage:(UIImage *)placeholderImage
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success:(void (^)(NSURLRequest *request, NSHTTPURLResponse *response, UIImage *image))success
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failure:(void (^)(NSError *error))failure
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{
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[self cancelImageRequestOperationForState:state];
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UIImage *cachedImage = [[[self class] sharedImageCache] cachedImageForRequest:urlRequest];
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if (cachedImage) {
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if (success) {
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success(nil, nil, cachedImage);
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} else {
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[self setImage:cachedImage forState:state];
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}
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[self af_setImageRequestOperation:nil forState:state];
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} else {
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if (placeholderImage) {
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[self setImage:placeholderImage forState:state];
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}
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__weak __typeof(self)weakSelf = self;
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AFHTTPRequestOperation *imageRequestOperation = [[AFHTTPRequestOperation alloc] initWithRequest:urlRequest];
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imageRequestOperation.responseSerializer = self.imageResponseSerializer;
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[imageRequestOperation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
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__strong __typeof(weakSelf)strongSelf = weakSelf;
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if ([[urlRequest URL] isEqual:[operation.request URL]]) {
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if (success) {
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success(operation.request, operation.response, responseObject);
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} else if (responseObject) {
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[strongSelf setImage:responseObject forState:state];
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}
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}
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[[[strongSelf class] sharedImageCache] cacheImage:responseObject forRequest:urlRequest];
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} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
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if ([[urlRequest URL] isEqual:[operation.request URL]]) {
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if (failure) {
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failure(error);
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}
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}
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}];
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[self af_setImageRequestOperation:imageRequestOperation forState:state];
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[[[self class] af_sharedImageRequestOperationQueue] addOperation:imageRequestOperation];
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}
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}
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#pragma mark -
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- (void)setBackgroundImageForState:(UIControlState)state
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withURL:(NSURL *)url
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{
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[self setBackgroundImageForState:state withURL:url placeholderImage:nil];
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}
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- (void)setBackgroundImageForState:(UIControlState)state
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withURL:(NSURL *)url
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placeholderImage:(UIImage *)placeholderImage
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{
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NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
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[request addValue:@"image/*" forHTTPHeaderField:@"Accept"];
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[self setBackgroundImageForState:state withURLRequest:request placeholderImage:placeholderImage success:nil failure:nil];
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}
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- (void)setBackgroundImageForState:(UIControlState)state
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withURLRequest:(NSURLRequest *)urlRequest
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placeholderImage:(UIImage *)placeholderImage
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success:(void (^)(NSURLRequest *request, NSHTTPURLResponse *response, UIImage *image))success
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failure:(void (^)(NSError *error))failure
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{
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[self cancelBackgroundImageRequestOperationForState:state];
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UIImage *cachedImage = [[[self class] sharedImageCache] cachedImageForRequest:urlRequest];
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if (cachedImage) {
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if (success) {
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success(nil, nil, cachedImage);
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} else {
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[self setBackgroundImage:cachedImage forState:state];
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}
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[self af_setBackgroundImageRequestOperation:nil forState:state];
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} else {
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if (placeholderImage) {
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[self setBackgroundImage:placeholderImage forState:state];
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}
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__weak __typeof(self)weakSelf = self;
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AFHTTPRequestOperation *backgroundImageRequestOperation = [[AFHTTPRequestOperation alloc] initWithRequest:urlRequest];
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backgroundImageRequestOperation.responseSerializer = self.imageResponseSerializer;
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[backgroundImageRequestOperation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
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__strong __typeof(weakSelf)strongSelf = weakSelf;
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if ([[urlRequest URL] isEqual:[operation.request URL]]) {
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if (success) {
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success(operation.request, operation.response, responseObject);
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} else if (responseObject) {
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[strongSelf setBackgroundImage:responseObject forState:state];
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}
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}
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[[[strongSelf class] sharedImageCache] cacheImage:responseObject forRequest:urlRequest];
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} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
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if ([[urlRequest URL] isEqual:[operation.request URL]]) {
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if (failure) {
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failure(error);
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}
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}
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}];
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[self af_setBackgroundImageRequestOperation:backgroundImageRequestOperation forState:state];
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[[[self class] af_sharedImageRequestOperationQueue] addOperation:backgroundImageRequestOperation];
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}
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}
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#pragma mark -
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- (void)cancelImageRequestOperationForState:(UIControlState)state {
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[[self af_imageRequestOperationForState:state] cancel];
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[self af_setImageRequestOperation:nil forState:state];
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}
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- (void)cancelBackgroundImageRequestOperationForState:(UIControlState)state {
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[[self af_backgroundImageRequestOperationForState:state] cancel];
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[self af_setBackgroundImageRequestOperation:nil forState:state];
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}
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@end
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#endif
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