55 lines
1.3 KiB
Plaintext
55 lines
1.3 KiB
Plaintext
/*
|
|
* Copyright (c) Facebook, Inc. and its affiliates.
|
|
*
|
|
* This source code is licensed under the MIT license found in the
|
|
* LICENSE file in the root directory of this source tree.
|
|
*/
|
|
|
|
#import <React/RCTGIFImageDecoder.h>
|
|
|
|
#import <ImageIO/ImageIO.h>
|
|
#import <QuartzCore/QuartzCore.h>
|
|
#import <React/RCTAnimatedImage.h>
|
|
#import <React/RCTUtils.h>
|
|
#import <ReactCommon/RCTTurboModule.h>
|
|
|
|
#import "RCTImagePlugins.h"
|
|
|
|
@interface RCTGIFImageDecoder() <RCTTurboModule>
|
|
@end
|
|
|
|
@implementation RCTGIFImageDecoder
|
|
|
|
RCT_EXPORT_MODULE()
|
|
|
|
- (BOOL)canDecodeImageData:(NSData *)imageData
|
|
{
|
|
char header[7] = {};
|
|
[imageData getBytes:header length:6];
|
|
|
|
return !strcmp(header, "GIF87a") || !strcmp(header, "GIF89a");
|
|
}
|
|
|
|
- (RCTImageLoaderCancellationBlock)decodeImageData:(NSData *)imageData
|
|
size:(CGSize)size
|
|
scale:(CGFloat)scale
|
|
resizeMode:(RCTResizeMode)resizeMode
|
|
completionHandler:(RCTImageLoaderCompletionBlock)completionHandler
|
|
{
|
|
RCTAnimatedImage *image = [[RCTAnimatedImage alloc] initWithData:imageData scale:scale];
|
|
|
|
if (!image) {
|
|
completionHandler(nil, nil);
|
|
return ^{};
|
|
}
|
|
|
|
completionHandler(nil, image);
|
|
return ^{};
|
|
}
|
|
|
|
@end
|
|
|
|
Class RCTGIFImageDecoderCls() {
|
|
return RCTGIFImageDecoder.class;
|
|
}
|