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08c375f828
Summary: In preparation for Blob support (wherein binary XHR and WebSocket responses can be retained as native data blobs on the native side and JS receives a web-like opaque Blob object), this change makes RCTNetworking aware of the responseType that JS requests. A `xhr.responseType` of `''` or `'text'` translates to a native response type of `'text'`. A `xhr.responseType` of `arraybuffer` translates to a native response type of `base64`, as we currently lack an API to transmit TypedArrays directly to JS. This is analogous to how the WebSocket module already works, and it's a lot more versatile and much less brittle than converting a JS *string* back to a TypedArray, which is what's currently going on. Now that we don't always send text down to JS, JS consumers might still want to get progress updates about a binary download. This is what the `'progress'` event is designed for, so this change also implements that. This change also follows the XHR spec with regards to `xhr.response` and `xhr.responseText`: - if the response type is `'text'`, `xhr.responseText` can be peeked at by the JS consumer. It will be updated periodically as the download progresses, so long as there's either an `onreadystatechange` or `onprogress` handler on the XHR. - if the response type is not `'text'`, `xhr.responseText` can't be accessed and `xhr.response` remains `null` until the response is fully received. `'progress'` events containing response details (total bytes, downloaded so far) are dispatched if there's an `onprogress` handler. Once Blobs are landed, `xhr.responseType` of `'blob'` will correspond to the same native response type, which will cause RCTNetworking to only send a blob ID down to JS, which can then create a `Blob` object from that for consumers. Closes https://github.com/facebook/react-native/pull/8324 Reviewed By: javache Differential Revision: D3508822 Pulled By: davidaurelio fbshipit-source-id: 441b2d4d40265b6036559c3ccb9fa962999fa5df
50 lines
1.9 KiB
Objective-C
50 lines
1.9 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 <Foundation/Foundation.h>
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#import "RCTURLRequestDelegate.h"
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#import "RCTURLRequestHandler.h"
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typedef void (^RCTURLRequestCompletionBlock)(NSURLResponse *response, NSData *data, NSError *error);
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typedef void (^RCTURLRequestCancellationBlock)(void);
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typedef void (^RCTURLRequestIncrementalDataBlock)(NSData *data, int64_t progress, int64_t total);
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typedef void (^RCTURLRequestProgressBlock)(int64_t progress, int64_t total);
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typedef void (^RCTURLRequestResponseBlock)(NSURLResponse *response);
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typedef NS_ENUM(NSInteger, RCTNetworkTaskStatus) {
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RCTNetworkTaskPending = 0,
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RCTNetworkTaskInProgress,
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RCTNetworkTaskFinished,
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};
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@interface RCTNetworkTask : NSObject <RCTURLRequestDelegate>
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@property (nonatomic, readonly) NSURLRequest *request;
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@property (nonatomic, readonly) NSNumber *requestID;
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@property (nonatomic, readonly, weak) id requestToken;
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@property (nonatomic, readonly) NSURLResponse *response;
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@property (nonatomic, readonly) RCTURLRequestCompletionBlock completionBlock;
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@property (nonatomic, copy) RCTURLRequestProgressBlock downloadProgressBlock;
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@property (nonatomic, copy) RCTURLRequestIncrementalDataBlock incrementalDataBlock;
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@property (nonatomic, copy) RCTURLRequestResponseBlock responseBlock;
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@property (nonatomic, copy) RCTURLRequestProgressBlock uploadProgressBlock;
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@property (nonatomic, readonly) RCTNetworkTaskStatus status;
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- (instancetype)initWithRequest:(NSURLRequest *)request
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handler:(id<RCTURLRequestHandler>)handler
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completionBlock:(RCTURLRequestCompletionBlock)completionBlock NS_DESIGNATED_INITIALIZER;
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- (void)start;
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- (void)cancel;
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@end
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