88 lines
3.6 KiB
Objective-C
88 lines
3.6 KiB
Objective-C
// AFImageRequestOperation.m
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//
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// Copyright (c) 2011 Gowalla (http://gowalla.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 "AFImageRequestOperation.h"
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#import "AFImageCache.h"
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#import "UIImage+AFNetworking.h"
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static CGFloat const kAFImageRequestJPEGQuality = 0.8;
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static NSUInteger const kAFImageRequestMaximumResponseSize = 8 * 1024 * 1024;
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static inline CGSize kAFImageRequestRoundedCornerRadii(CGSize imageSize) {
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CGFloat dimension = fmaxf(imageSize.width, imageSize.height) * 0.1;
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return CGSizeMake(dimension, dimension);
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}
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@implementation AFImageRequestOperation
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+ (id)operationWithRequest:(NSURLRequest *)urlRequest
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success:(void (^)(UIImage *image))success
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{
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return [self operationWithRequest:urlRequest imageSize:CGSizeZero options:AFImageRequestDefaultOptions success:success];
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}
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+ (id)operationWithRequest:(NSURLRequest *)urlRequest
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imageSize:(CGSize)imageSize
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options:(AFImageRequestOptions)options
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success:(void (^)(UIImage *image))success
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{
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return [self operationWithRequest:urlRequest completion:^(NSURLRequest *request, NSHTTPURLResponse *response, NSData *data, NSError *error) {
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UIImage *image = nil;
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if ([[UIScreen mainScreen] scale] == 2.0) {
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CGImageRef imageRef = [[UIImage imageWithData:data] CGImage];
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image = [UIImage imageWithCGImage:imageRef scale:2.0 orientation:UIImageOrientationUp];
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} else {
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image = [UIImage imageWithData:data];
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}
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if (!(CGSizeEqualToSize(image.size, imageSize) || CGSizeEqualToSize(imageSize, CGSizeZero))) {
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image = [UIImage imageByScalingAndCroppingImage:image size:imageSize];
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}
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if ((options & AFImageRequestRoundCorners)) {
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image = [UIImage imageByRoundingCornersOfImage:image corners:UIRectCornerAllCorners cornerRadii:kAFImageRequestRoundedCornerRadii(image.size)];
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}
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dispatch_async(dispatch_get_main_queue(), ^(void) {
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if (success) {
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success(image);
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}
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});
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dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^(void) {
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[[AFImageCache sharedImageCache] cacheImage:image forRequest:request imageSize:imageSize options:options];
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});
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}];
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}
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- (id)initWithRequest:(NSURLRequest *)urlRequest {
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self = [super initWithRequest:urlRequest];
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if (!self) {
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return nil;
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}
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self.runLoopModes = [NSSet setWithObject:NSRunLoopCommonModes];
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return self;
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}
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@end
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