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
Summary:
Accessing the `responseText` property when `responseType` is not `''` or `'text'` should throw. Also, the property is read-only.
**Test Plan:** UIExplorer example, unit tests
Closes https://github.com/facebook/react-native/pull/7284
Differential Revision: D3366893
fbshipit-source-id: a4cf5ebabcd1e03d6e2dc9d51230982922746c11
Summary:
XMLHttpRequest was sending the request before registering any listeners, resulting in a warning from the native event emitter.
Since we weren't seeing widespread problems with XHR missing data, this was probably working OK in practice because the queuing of events meant that the listener would have been registered before the message was actually delivered.
Still, this was working more through luck than design. This diff fixes it by registering the listeners *before* sending the request.
Reviewed By: lexs
Differential Revision: D3371320
fbshipit-source-id: c688d4053a61f856eaacccd0106905edbefcc86a
Summary: Updated networking and geolocation to use the new events system.
Reviewed By: bestander
Differential Revision: D3346129
fbshipit-source-id: 957716e54d7af8c4a6783f684098e92e92f19654
Summary: Updated networking and geolocation to use the new events system.
Reviewed By: javache
Differential Revision: D3339945
fbshipit-source-id: 01d307cf8a0aea3a404c87c6205132c42290abb1
Summary: Updated networking and geolocation to use the new events system.
Reviewed By: javache
Differential Revision: D3339945
fbshipit-source-id: f1332fb2aab8560e4783739e223c1f31d583cfcf
David Aurelio
Philipp von Weitershausen
Spencer Ahrens
Philipp von Weitershausen
Nick Lockwood
Konstantin Raev