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Code garden for the original cache key generation

This commit is contained in:
DreamPiggy 2021-03-09 15:47:54 +08:00
parent 140db1ca46
commit d621667954
1 changed files with 8 additions and 18 deletions
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26
SDWebImage/Core/SDWebImageManager.m
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@ -321,19 +321,10 @@ static id<SDImageLoader> _defaultImageLoader;
// Check whether we should query original cache
BOOL shouldQueryOriginalCache = (originalQueryCacheType != SDImageCacheTypeNone);
if (shouldQueryOriginalCache) {
// Change originContext to mutable
SDWebImageMutableContext * __block originContext;
if (context) {
originContext = [context mutableCopy];
} else {
originContext = [NSMutableDictionary dictionary];
}
// Disable transformer for cache key generation
id<SDImageTransformer> transformer = originContext[SDWebImageContextImageTransformer];
originContext[SDWebImageContextImageTransformer] = [NSNull null];
NSString *key = [self cacheKeyForURL:url context:originContext];
// Disable transformer for original cache key generation
SDWebImageMutableContext *tempContext = [context mutableCopy];
tempContext[SDWebImageContextImageTransformer] = [NSNull null];
NSString *key = [self cacheKeyForURL:url context:tempContext];
@weakify(operation);
operation.cacheOperation = [imageCache queryImageForKey:key options:options context:context cacheType:originalQueryCacheType completion:^(UIImage * _Nullable cachedImage, NSData * _Nullable cachedData, SDImageCacheType cacheType) {
@strongify(operation);
@ -474,11 +465,10 @@ static id<SDImageLoader> _defaultImageLoader;
if (context[SDWebImageContextOriginalStoreCacheType]) {
originalStoreCacheType = [context[SDWebImageContextOriginalStoreCacheType] integerValue];
}
// origin cache key
SDWebImageMutableContext *originContext = [context mutableCopy];
// disable transformer for cache key generation
originContext[SDWebImageContextImageTransformer] = [NSNull null];
NSString *key = [self cacheKeyForURL:url context:originContext];
// Disable transformer for original cache key generation
SDWebImageMutableContext *tempContext = [context mutableCopy];
tempContext[SDWebImageContextImageTransformer] = [NSNull null];
NSString *key = [self cacheKeyForURL:url context:tempContext];
id<SDImageTransformer> transformer = context[SDWebImageContextImageTransformer];
if (![transformer conformsToProtocol:@protocol(SDImageTransformer)]) {
transformer = nil;