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https://github.com/status-im/react-native.git
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e4110456ab
Summary: GIF images are currently loaded as a CAKeyframeAnimation, however returning this animation directly from RCTImageLoader was dangerous, as any code that expected a UIImage would crash. This diff changes RCTGIFImageLoader to return a UIImage of the first frame, with the keyframe animation attached as an associated object. This way, code that is not expecting an animation will still work correctly.
135 lines
4.9 KiB
Objective-C
135 lines
4.9 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 <UIKit/UIKit.h>
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#import "RCTBridge.h"
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#import "RCTURLRequestHandler.h"
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@class ALAssetsLibrary;
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typedef void (^RCTImageLoaderProgressBlock)(int64_t progress, int64_t total);
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typedef void (^RCTImageLoaderCompletionBlock)(NSError *error, UIImage *image);
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typedef void (^RCTImageLoaderCancellationBlock)(void);
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@interface UIImage (React)
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@property (nonatomic, copy) CAKeyframeAnimation *reactKeyframeAnimation;
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@end
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@interface RCTImageLoader : NSObject <RCTBridgeModule, RCTURLRequestHandler>
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/**
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* Loads the specified image at the highest available resolution.
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* Can be called from any thread, will always call callback on main thread.
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*/
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- (RCTImageLoaderCancellationBlock)loadImageWithTag:(NSString *)imageTag
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callback:(RCTImageLoaderCompletionBlock)callback;
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/**
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* As above, but includes target size, scale and resizeMode, which are used to
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* select the optimal dimensions for the loaded image.
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*/
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- (RCTImageLoaderCancellationBlock)loadImageWithTag:(NSString *)imageTag
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size:(CGSize)size
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scale:(CGFloat)scale
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resizeMode:(UIViewContentMode)resizeMode
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progressBlock:(RCTImageLoaderProgressBlock)progressBlock
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completionBlock:(RCTImageLoaderCompletionBlock)completionBlock;
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/**
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* Finds an appropriate image decoder and passes the target size, scale and
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* resizeMode for optimal image decoding.
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*/
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- (RCTImageLoaderCancellationBlock)decodeImageData:(NSData *)imageData
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size:(CGSize)size
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scale:(CGFloat)scale
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resizeMode:(UIViewContentMode)resizeMode
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completionBlock:(RCTImageLoaderCompletionBlock)completionBlock;
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@end
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@interface RCTBridge (RCTImageLoader)
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/**
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* The shared image loader instance
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*/
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@property (nonatomic, readonly) RCTImageLoader *imageLoader;
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@end
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/**
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* Provides the interface needed to register an image data loader. Image data
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* loaders are also bridge modules, so should be registered using
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* RCT_EXPORT_MODULE().
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*/
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@protocol RCTImageURLLoader <RCTBridgeModule>
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/**
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* Indicates whether this data loader is capable of processing the specified
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* request URL. Typically the handler would examine the scheme/protocol of the
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* URL to determine this.
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*/
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- (BOOL)canLoadImageURL:(NSURL *)requestURL;
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/**
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* Send a network request to load the request URL. The method should call the
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* progressHandler (if applicable) and the completionHandler when the request
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* has finished. The method should also return a cancellation block, if
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* applicable.
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*/
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- (RCTImageLoaderCancellationBlock)loadImageForURL:(NSURL *)imageURL size:(CGSize)size scale:(CGFloat)scale resizeMode:(UIViewContentMode)resizeMode progressHandler:(RCTImageLoaderProgressBlock)progressHandler completionHandler:(RCTImageLoaderCompletionBlock)completionHandler;
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@optional
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/**
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* If more than one RCTImageURLLoader responds YES to `-canLoadImageURL:`
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* then `imageLoaderPriority` is used to determine which one to use. The handler
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* with the highest priority will be selected. Default priority is zero. If
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* two or more valid handlers have the same priority, the selection order is
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* undefined.
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*/
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- (float)imageLoaderPriority;
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@end
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/**
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* Provides the interface needed to register an image decoder. Image decoders
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* are also bridge modules, so should be registered using RCT_EXPORT_MODULE().
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*/
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@protocol RCTImageDecoder <RCTBridgeModule>
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/**
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* Indicates whether this handler is capable of decoding the specified data.
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* Typically the handler would examine some sort of header data to determine
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* this.
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*/
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- (BOOL)canDecodeImageData:(NSData *)imageData;
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/**
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* Decode an image from the data object. The method should call the
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* completionHandler when the decoding operation has finished. The method
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* should also return a cancellation block, if applicable.
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*/
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- (RCTImageLoaderCancellationBlock)decodeImageData:(NSData *)imageData size:(CGSize)size scale:(CGFloat)scale resizeMode:(UIViewContentMode)resizeMode completionHandler:(RCTImageLoaderCompletionBlock)completionHandler;
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@optional
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/**
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* If more than one RCTImageDecoder responds YES to `-canDecodeImageData:`
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* then `imageDecoderPriority` is used to determine which one to use. The
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* handler with the highest priority will be selected. Default priority is zero.
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* If two or more valid handlers have the same priority, the selection order is
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* undefined.
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*/
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- (float)imageDecoderPriority;
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@end
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