Summary:
Don't want anyone accidentally mutating it.
Also make deepFreezeAndThrowOnMutationInDev easier to use with nice flow typing.
Reviewed By: yungsters
Differential Revision: D6974089
fbshipit-source-id: 0f90e7939cb726893fa353a4f2a6bbba701205bc
Summary:
The code to display HMR errors on the client was reading the `description` field from Metro payloads. Metro does not include `description` in the body of its error payloads -- only in its `body.errors[]` items. This commit changes RN's HMR code to show `body.message` (set consistently with https://github.com/facebook/metro/pull/124) instead of the non-existent `body.description`.
Open a test RN app, enable HMR, and then introduce a syntax error in an app source file. See that the redbox provides information about the syntax error instead of just saying "TransformError undefined".
- https://github.com/facebook/metro/pull/124
[GENERAL][ENHANCEMENT][HMR] - Fix display of syntax error messages when HMR is enabled
Closes https://github.com/facebook/react-native/pull/17619
Differential Revision: D6726516
Pulled By: mjesun
fbshipit-source-id: b1d1008d6f1aa8f88ff8a2aa1374724a305c773b
Summary:
This commit adds documentation to two methods of BackHandler API, addEventListener and removeEventListener. Despite being a simple change, it helps to keep the documentation consistent.
I have tested the `./website` locally, the changes look similar to some other components such as `NetInfo`.
[DOCS][ENHANCEMENT][BackHandler] - Improve BackHandler documentation (addEventListener and removeEventListener)
Closes https://github.com/facebook/react-native/pull/16618
Differential Revision: D6260935
Pulled By: hramos
fbshipit-source-id: ab04a9fca89ddaa1925844b5754caf1c355a9329
Summary:
This usage of `...` currently causes BackHandler to silently become non-functional when a `Symbol` polyfill is used.
Why?
- The `[...obj]` operator implicitly calls the object's iterator to fill the array
- react-native's internal `Set` polyfill has a load order issue that breaks it whenever a project uses a `Symbol` polyfill
- This means that when `BackHandler` tries to `[...set]` a `Set` of subscriptions the result is always an empty array instead of an array of subscriptions
Additionally it's worth noting that the current code is also wastefully inefficient as in order to reverse iterate over subscriptions it:
- Clones the `Set` (which fills it by implicitly running the set's iterator)
- Uses `[...set]` to convert the cloned set into an array (which also implicitly runs the iterator on the clone)
- Finally reverses the order of the array
----
This code fixes this problem by replacing the use of multiple Set instance iterators with a simple `.forEach` loop that unshifts directly into the final array.
I've tested this by opening the repo's RNTester app on Android and tvOS ensuring that the back handler works before changes, the application crashes when I introduce an error (to verify my code changes are being applied to the app), the back handler works and after changes.
Fixes#11968
Closes https://github.com/facebook/react-native/pull/15182
Differential Revision: D6114696
Pulled By: hramos
fbshipit-source-id: 2eae127558124a394bb3572a6381a5985ebf9d64
Summary:
CI is currently failing because of a lint issue, this fixes it and a bunch of other warnings that are auto-fixable.
**Test plan**
Quick manual test, cosmetic changes only.
Closes https://github.com/facebook/react-native/pull/16229
Differential Revision: D6009748
Pulled By: TheSavior
fbshipit-source-id: cabd44fed99dd90bd0b35626492719c139c89f34
Summary:
/**
* param {number} value
* param {number} min
* param {number} max
* return {number}
*/
should be:
/**
* param {number} min
* param {number} value
* param {number} max
* return {number}
*/
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(Write your test plan here. If you changed any code, please provide us with clear instructions on how you verified your changes work. Bonus points for screenshots and videos!)
Closes https://github.com/facebook/react-native/pull/16077
Differential Revision: D5938021
Pulled By: shergin
fbshipit-source-id: 3a6e4ff5ab39a657bc0d9271ae2a2600998b2ddf
Summary:
Several changes here. The `Text.md` and `PixelRatio.md` files were appended to the autodocs during site generation. This seemed excessive for just two files, so I've just merged the content into the autodocs themselves. It should help us simplify the website generation process in the future.
I've also merged IssueGuidelines.md and PullRequestGuidelines.md into the Contribution/Maintainers guidelines to improve their visibility.
Finally, I renamed Help to Community in the nav bar.
Ran the website locally, and verified every page rendered as expected: the Community page, Contributing page, Maintainers page.
Closes https://github.com/facebook/react-native/pull/15374
Differential Revision: D5567400
Pulled By: hramos
fbshipit-source-id: e06056edb12c9a17319fe1af46b2ef3a2e1b5854
Summary:
Importing `react` modules from `react-native` has been deprecated since 0.25 so I think it's safe to remove it now since everyone has migrated their code and it is now well know and documented that you import from different packages. This finishes the spring cleanup of `react-native-implementation.js` :)
**Test plan**
Tested that UIExplorer still works.
Closes https://github.com/facebook/react-native/pull/13354
Reviewed By: bvaughn
Differential Revision: D4928785
Pulled By: javache
fbshipit-source-id: 38c623c309b06b2cb5e73074833342d2745ab198
Summary:
If tracking is enabled and the sampling check passes on a scroll or layout event,
we compare the scroll offset to the layout of the rendered items. If the items don't cover
the visible area of the list, we fire an `onFillRateExceeded` call with relevant stats for
logging the event through an analytics pipeline.
The measurement methodology is a little jank because everything is async, but it seems directionally
useful for getting ballpark numbers, catching regressions, and tracking improvements.
Benchmark testing shows a ~2014 MotoX starts hitting the fill rate limit at about 2500 px / sec,
which is pretty fast scrolling.
This also reworks our frame rate stuff so we can use a shared `SceneTracking` thing and track blankness
globally.
Reviewed By: bvaughn
Differential Revision: D4806867
fbshipit-source-id: 119bf177463c8c3aa51fa13d1a9d03b1a96042aa
Summary: `invariant` is only available in open source because we install it as a transitive dependency into node_modules
Reviewed By: jeanlauliac
Differential Revision: D4745582
fbshipit-source-id: 27c49b576254c8d1d667dea7097d16cdd1205daf
Summary:
The `UIManager` already has a lot of responsibilities and is deeply
tied with React Native's view architecture. This diff separates out a
`DeviceInfo` native module to provide information about screen dimensions and
font scale, etc.
Reviewed By: fkgozali
Differential Revision: D4713834
fbshipit-source-id: f2ee93acf876a4221c29a8c731f5abeffbb97974
Summary: This adds an alternative logging method that can be called from native side. `logIfNoLoggingHook()` will pass the message to console only if there's Chrome debugger attached. This new method sends the message to console regardless to notify the developers better.
Reviewed By: yungsters
Differential Revision: D4669663
fbshipit-source-id: 3940816dadd08d450f066b7223f6d26a38a70921
Summary:
Enable back navigation on Apple TV (with the remote's menu button) in code making use of BackAndroid. The module is renamed to BackHandler. BackAndroid is still exported to ReactNative for now, until external projects switch to using the new name for the module. The navigation in https://github.com/react-community/react-navigation makes use of this module.
**Test plan**: Manual testing with an example app (https://github.com/dlowder-salesforce/react-nav-example).
Closes https://github.com/facebook/react-native/pull/12571
Differential Revision: D4665152
Pulled By: ericvicenti
fbshipit-source-id: 925400ce216379267e014457be6f5eedbe4453ec
Spencer Ahrens
Dmitry Zakharov
Rafael Oleza
Jean Lauliac
Mathias Bynens
David Vacca
James Ide
Eli White
Brian Shin
Alex Dvornikov
Adriano Melo
Jia Li
Miguel Jimenez Esun
Daniel Friesen
Janic Duplessis
Daniel Andersson
Matt Bruce
Gregory
Marshall Roch
Hector Ramos
Pieter De Baets
James Burnett
Tim Yung
Gabe Levi
Alex Kotliarskyi
David Aurelio
Aaron Chiu
Ashwin Bharambe
Eric Vicenti
Kevin Gozali
Douglas Lowder