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RCTFileReaderModule.mm
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RCTFileReaderModule.mm
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/*
* 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/RCTFileReaderModule.h>
#import <FBReactNativeSpec/FBReactNativeSpec.h>
#import <React/RCTBridge.h>
#import <React/RCTConvert.h>
#import <React/RCTBlobManager.h>
#import "RCTBlobPlugins.h"
@interface RCTFileReaderModule() <NativeFileReaderModuleSpec>
@end
@implementation RCTFileReaderModule
RCT_EXPORT_MODULE(FileReaderModule)
@synthesize bridge = _bridge;
RCT_EXPORT_METHOD(readAsText:(NSDictionary<NSString *, id> *)blob
encoding:(NSString *)encoding
resolve:(RCTPromiseResolveBlock)resolve
reject:(RCTPromiseRejectBlock)reject)
{
RCTBlobManager *blobManager = [[self bridge] moduleForClass:[RCTBlobManager class]];
NSData *data = [blobManager resolve:blob];
if (data == nil) {
reject(RCTErrorUnspecified,
[NSString stringWithFormat:@"Unable to resolve data for blob: %@", [RCTConvert NSString:blob[@"blobId"]]], nil);
} else {
NSStringEncoding stringEncoding;
if (encoding == nil) {
stringEncoding = NSUTF8StringEncoding;
} else {
stringEncoding = CFStringConvertEncodingToNSStringEncoding(CFStringConvertIANACharSetNameToEncoding((CFStringRef) encoding));
}
NSString *text = [[NSString alloc] initWithData:data encoding:stringEncoding];
resolve(text);
}
}
RCT_EXPORT_METHOD(readAsDataURL:(NSDictionary<NSString *, id> *)blob
resolve:(RCTPromiseResolveBlock)resolve
reject:(RCTPromiseRejectBlock)reject)
{
RCTBlobManager *blobManager = [[self bridge] moduleForClass:[RCTBlobManager class]];
NSData *data = [blobManager resolve:blob];
if (data == nil) {
reject(RCTErrorUnspecified,
[NSString stringWithFormat:@"Unable to resolve data for blob: %@", [RCTConvert NSString:blob[@"blobId"]]], nil);
} else {
NSString *type = [RCTConvert NSString:blob[@"type"]];
NSString *text = [NSString stringWithFormat:@"data:%@;base64,%@",
type != nil && [type length] > 0 ? type : @"application/octet-stream",
[data base64EncodedStringWithOptions:0]];
resolve(text);
}
}
- (std::shared_ptr<facebook::react::TurboModule>)getTurboModule:(const facebook::react::ObjCTurboModule::InitParams &)params
{
return std::make_shared<facebook::react::NativeFileReaderModuleSpecJSI>(params);
}
@end
Class RCTFileReaderModuleCls(void)
{
return RCTFileReaderModule.class;
}