Summary:
When the React Native Cmd+D menu is opened, something re-runs module initialization code (including DevTools backend initialization) which recreates the `WebSocket` and kills any already-connected frontend.
It's not clear to me why this is done. (Intentional? Accident?) But it makes it difficult to connect the React Native Inspector and DevTools together without multiple reloads. This Diff prevents the Cmd+D menu from killing the `WebSocket` connection as a workaround. A better long-term fix would (probably) be to not eagerly re-run these modules.
## Changelog
[General] [Fixed] - Don't disconnect DevTools WebSocket connection on Cmd+D
Reviewed By: fkgozali, sammy-SC
Differential Revision: D27742376
fbshipit-source-id: 60ab3e4763da6b055c28c7aafc6d460e7f4a601d
Summary:
A few recent imports have explicitly added ".js" to the end of their path. This prevents Metro from resolving platform-specific JS files, e.g. "Foo.android.js" or "Foo.windows.js" instead of "Foo.js".
React Native Windows provides its own implementation of files in a few cases where stock React Native will share them between Android and iOS. We hope to reduce/eliminate these long term, but requiring explicit ".js" files currently breaks us in a couple of places where we have custom implementations.
This change is a quick regex replace of ES6 and CommonJS imports in 'Libraries/" to eliminate ".js".
## Changelog
[General] [Fixed] - Do not explicitly include ".js" in Library imports
Pull Request resolved: https://github.com/facebook/react-native/pull/28311
Test Plan: I haven't done any manual validation of this, but `flow-check` should catch any issues with this during CI.
Reviewed By: cpojer
Differential Revision: D20486466
Pulled By: TheSavior
fbshipit-source-id: 31e1ccc307967417d7d09c34c859f0b2b69eac84
Summary:
still some generated files in www that need to land before we can release 0.111 here.
drop-conflicts
Changelog: [Internal]
(Note: this ignores all push blocking failures!)
Reviewed By: dsainati1
Differential Revision: D18278838
fbshipit-source-id: b20c3fefb3aab7c5fb614b33d846c7548184f49a
Summary:
When testing out the NetworkOverlay, I noticed that we were creating a lot of WebSocket connections for localhost:8097. Rick found that this is because we're trying to connect to React devtools every 2 seconds: https://github.com/facebook/react/blob/master/packages/react-devtools-core/src/backend.js#L67 and it appears we create a new WebSocket every time.
Dan suggested that we use opening the dev menu as a trigger for attempting to connect to React devtools. This diff uses RCTNativeAppEventEmitter to emit an event from native when the dev menu/dialog is shown, and listening to that event in JS to attempt to connect to devtools.
I'm also making the change of passing in a websocket instead of just passing in the host + port; this way it will only attempt to connect once on each call to `connectToDevTools` (otherwise, we would attempt to reconnect every 2 seconds as soon as the dev menu is opened, and then the next time the menu is opened we'd so start that *again*, and so on - I could have it keep track of whether it's already connecting and avoid doing it again, but this is easier and should be sufficient, I think).
We should probably also update the suggested troubleshooting tips on the devtools page to reflect this change, so that people don't get confused.
Changelog: [General] [Fixed] Fix issue where we attempt to connect to React devtools every 2 seconds
Reviewed By: mmmulani
Differential Revision: D17919808
fbshipit-source-id: 4658d995c274574d22f2f54ea06d7f29ef2f54dc
Brian Vaughn
Nick Gerleman
Jordan Brown
Emily Janzer