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e1577df1fd
Summary: To make React Native play nicely with our internal build infrastructure we need to properly namespace all of our header includes. Where previously you could do `#import "RCTBridge.h"`, you must now write this as `#import <React/RCTBridge.h>`. If your xcode project still has a custom header include path, both variants will likely continue to work, but for new projects, we're defaulting the header include path to `$(BUILT_PRODUCTS_DIR)/usr/local/include`, where the React and CSSLayout targets will copy a subset of headers too. To make Xcode copy headers phase work properly, you may need to add React as an explicit dependency to your app's scheme and disable "parallelize build". Reviewed By: mmmulani Differential Revision: D4213120 fbshipit-source-id: 84a32a4b250c27699e6795f43584f13d594a9a82
101 lines
3.0 KiB
Objective-C
101 lines
3.0 KiB
Objective-C
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import "RCTImageCache.h"
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#import <libkern/OSAtomic.h>
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#import <objc/runtime.h>
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#import <ImageIO/ImageIO.h>
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#import <React/RCTConvert.h>
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#import <React/RCTNetworking.h>
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#import <React/RCTUtils.h>
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#import "RCTImageUtils.h"
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static const NSUInteger RCTMaxCachableDecodedImageSizeInBytes = 1048576; // 1MB
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static NSString *RCTCacheKeyForImage(NSString *imageTag, CGSize size, CGFloat scale,
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RCTResizeMode resizeMode, NSString *responseDate)
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{
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return [NSString stringWithFormat:@"%@|%g|%g|%g|%zd|%@",
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imageTag, size.width, size.height, scale, resizeMode, responseDate];
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}
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@implementation RCTImageCache
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{
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NSOperationQueue *_imageDecodeQueue;
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NSCache *_decodedImageCache;
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}
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- (instancetype)init
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{
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_decodedImageCache = [NSCache new];
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_decodedImageCache.totalCostLimit = 5 * 1024 * 1024; // 5MB
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(clearCache)
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name:UIApplicationDidReceiveMemoryWarningNotification
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object:nil];
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(clearCache)
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name:UIApplicationWillResignActiveNotification
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object:nil];
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return self;
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}
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- (void)dealloc
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{
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[[NSNotificationCenter defaultCenter] removeObserver:self];
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}
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- (void)clearCache
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{
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[_decodedImageCache removeAllObjects];
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}
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- (void)addImageToCache:(UIImage *)image
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forKey:(NSString *)cacheKey
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{
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if (!image) {
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return;
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}
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CGFloat bytes = image.size.width * image.size.height * image.scale * image.scale * 4;
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if (bytes <= RCTMaxCachableDecodedImageSizeInBytes) {
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[self->_decodedImageCache setObject:image
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forKey:cacheKey
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cost:bytes];
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}
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}
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- (UIImage *)imageForUrl:(NSString *)url
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size:(CGSize)size
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scale:(CGFloat)scale
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resizeMode:(RCTResizeMode)resizeMode
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responseDate:(NSString *)responseDate
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{
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NSString *cacheKey = RCTCacheKeyForImage(url, size, scale, resizeMode, responseDate);
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return [_decodedImageCache objectForKey:cacheKey];
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}
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- (void)addImageToCache:(UIImage *)image
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URL:(NSString *)url
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size:(CGSize)size
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scale:(CGFloat)scale
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resizeMode:(RCTResizeMode)resizeMode
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responseDate:(NSString *)responseDate
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{
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NSString *cacheKey = RCTCacheKeyForImage(url, size, scale, resizeMode, responseDate);
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return [self addImageToCache:image forKey:cacheKey];
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}
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@end
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