56 lines
1.9 KiB
Objective-C
56 lines
1.9 KiB
Objective-C
/*
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* This file is part of the SDWebImage package.
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* (c) Olivier Poitrey <rs@dailymotion.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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#import "UIView+WebCacheOperation.h"
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#import "objc/runtime.h"
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static char loadOperationKey;
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@implementation UIView (WebCacheOperation)
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- (NSMutableDictionary *)operationDictionary {
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NSMutableDictionary *operations = objc_getAssociatedObject(self, &loadOperationKey);
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if (operations) {
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return operations;
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}
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operations = [NSMutableDictionary dictionary];
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objc_setAssociatedObject(self, &loadOperationKey, operations, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
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return operations;
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}
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- (void)sd_setImageLoadOperation:(id)operation forKey:(NSString *)key {
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[self sd_cancelImageLoadOperationWithKey:key];
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NSMutableDictionary *operationDictionary = [self operationDictionary];
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[operationDictionary setObject:operation forKey:key];
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}
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- (void)sd_cancelImageLoadOperationWithKey:(NSString *)key {
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// Cancel in progress downloader from queue
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NSMutableDictionary *operationDictionary = [self operationDictionary];
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id operations = [operationDictionary objectForKey:key];
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if (operations) {
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if ([operations isKindOfClass:[NSArray class]]) {
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for (id <SDWebImageOperation> operation in operations) {
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if (operation) {
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[operation cancel];
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}
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}
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} else if ([operations conformsToProtocol:@protocol(SDWebImageOperation)]){
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[(id<SDWebImageOperation>) operations cancel];
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}
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[operationDictionary removeObjectForKey:key];
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}
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}
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- (void)sd_removeImageLoadOperationWithKey:(NSString *)key {
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NSMutableDictionary *operationDictionary = [self operationDictionary];
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[operationDictionary removeObjectForKey:key];
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}
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@end
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