Summary:
This PR adds support for number values for `fontWeight` as requested in https://github.com/facebook/react-native/issues/34425.
## Changelog
<!-- Help reviewers and the release process by writing your own changelog entry. For an example, see:
https://reactnative.dev/contributing/changelogs-in-pull-requests
-->
[General] [Added] - Added support for number values in fontWeight.
Pull Request resolved: https://github.com/facebook/react-native/pull/34598
Test Plan:
```js
<Text style={{ fontWeight: 900, color: 'red' }}>
Hello World
</Text>
```
Reviewed By: jacdebug
Differential Revision: D39268920
Pulled By: cipolleschi
fbshipit-source-id: 9bb711677bf173f9904b74f382659042856efd83
Summary:
This PR aims to add support for objectFit a partial equivalent to the resizeMode style and prop of Image.
## Changelog
[General] [Added] - Add support for objectFit style of Image.
Pull Request resolved: https://github.com/facebook/react-native/pull/34576
Test Plan:
1. Open the RNTester app and navigate to the Image page
2. See the Object Fit section.

Reviewed By: rickhanlonii
Differential Revision: D39261176
Pulled By: jacdebug
fbshipit-source-id: 1eefd76b6c11ed5fc52b2c524ad78c91051077f6
Summary:
This adds support for the `userSelect` style attribute, mapping the already existing selectable attribute as requested on https://github.com/facebook/react-native/issues/34425. This PR also updates the TextExample.android and TestExample.ios on the RNTester in order to facilitate the manual QA of this.
## Changelog
[General] [Added] - Add support for `userSelect` style
Pull Request resolved: https://github.com/facebook/react-native/pull/34575
Test Plan:
- open the RNTester app and navigate to the Text page
- Check the `Selectable Text` through the Selectable text section
<Image src="https://user-images.githubusercontent.com/22423684/188112863-65acd145-76b0-47ba-8bc6-f72298077096.png" height="600" width="300" />
Reviewed By: yungsters
Differential Revision: D39252798
Pulled By: jacdebug
fbshipit-source-id: f7fabf20ee68778d75461f511c56f94d0d756d9c
Summary:
This adds `pointerEvents` style which is equivalent to `pointerEvents` prop as requested in https://github.com/facebook/react-native/issues/34425
## Changelog
<!-- Help reviewers and the release process by writing your own changelog entry. For an example, see:
https://reactnative.dev/contributing/changelogs-in-pull-requests
-->
[General] [Added] - Added pointerEvents style equivalent to pointerEvents prop
Pull Request resolved: https://github.com/facebook/react-native/pull/34586
Test Plan:
```
<View
style={{
pointerEvents: 'none'
}}
>
</View>
```
Reviewed By: cipolleschi
Differential Revision: D39252830
Pulled By: jacdebug
fbshipit-source-id: 94f265a6b6940a4371e7985d5de3b8143693e069
Summary:
from the original design of `StyleSheet.setStyleAttributePreprocessor()` in https://github.com/facebook/react-native/issues/11138, the overwriting warning shows when the existing preprocess is be overwritten. the behavior changes from https://github.com/facebook/react-native/commit/33b385825c72. This PR revises the logic back to original design.
## Changelog
[Internal] [Fixed] - Show warning only when overwriting existing preprocessor in `StyleSheet.setStyleAttributePreprocessor()`
Pull Request resolved: https://github.com/facebook/react-native/pull/34479
Test Plan:
Unit Test
```
PASS Libraries/StyleSheet/__tests__/StyleSheet-test.js
setStyleAttributePreprocessor
✓ should not show warning when set preprocessor first time (2 ms)
✓ should show warning when overwrite the preprocessor (1 ms)
```
Reviewed By: dmitryrykun
Differential Revision: D38940676
Pulled By: cipolleschi
fbshipit-source-id: 80cf30fff62f4a02c17f7f42b3260a6011d5fc82
Summary:
Currently both iOS and Android send over the list of transforms as an array. But there is an if statement that causes other platforms to get a matrix. This prevents other platforms from being able to use the fabric ViewProps class and the conversion functions as they exist in core, as those expect the transforms to be an array.
Stop special casing iOS and android. - Which will allow for example Windows to be able to share more fabric code.
## Changelog
[Internal] [Changed] - All platforms should get transform sent to native as an array of transform operations instead of a matrix
Pull Request resolved: https://github.com/facebook/react-native/pull/33579
Test Plan:
Similar change made in react-native-windows.
https://github.com/microsoft/react-native-windows/issues/9797
Reviewed By: NickGerleman
Differential Revision: D38615676
Pulled By: cortinico
fbshipit-source-id: 8861afe6bf34bebb09dd82f7365faf007dd79cbf
Summary:
Sometime over the past few months (and with changes such as migrating to the `hermes-eslint` parser), a bunch of lint warnings crept into the codebase.
This does a pass to clean them all up, ignore generated files, and refactor some code to be... better.
There should be no observable behavior changes as a result of this.
Changelog:
[Internal]
Reviewed By: NickGerleman
Differential Revision: D38646643
fbshipit-source-id: a7b55d1e4cd5700340cc5c21f928baf3ea1d5a58
Summary:
This diff upgrades xplat to 0.178.1 and pre-suppresses errors from turning on constrained writes.
To generate this diff I:
* Modified every `env_mode=constrain_writes` to `env_mode=ssa` and made a commit (this is so our upgrade script will work)
* Ran scripts/flow/upgrade.sh 0.178.1 to upgrade all the flowconfigs to 178.1 and suppress new-env errors
* Modified arvr/js/flowconfig.ejs to use 0.178.1 and ran `scripts/gen-flowconfig/gen-flowconfig --project arvr`
* Modified xplat/js/flowconfig.ejs to use 0.178.1 and ran `scripts/gen-flowconfig/gen-flowconfig --project xplat`
* Unstacked from the commit in point 1
Reviewed By: SamChou19815
Differential Revision: D36676019
fbshipit-source-id: c3032f18ed838afc327f00de563e7f20713bdc26
Summary:
We are working on making the empty object literal `{}` have the type `{}` - i.e. exact empty object - rather than being unsealed.
Making this change exposes a variety of errors. We can prevent these errors by annotating what we want the type of the empty object to be.
Reduces Xplat error diff to 2.3k
- Announcement: [post](https://fb.workplace.com/groups/flowlang/posts/903386663600331)
- Support group: [Flow Support](https://fb.workplace.com/groups/flow)
drop-conflicts
Format:
```
arc f
```
Sort imports
```
hg l -n | xargs js1 lint --fix --rule 'fb-tools/sort-requires'
```
Changelog: [Internal]
Reviewed By: samwgoldman
Differential Revision: D36086696
fbshipit-source-id: 90447279f2e6e38f44189b74ec0297719f7adf58
Summary:
Adds `number` to the `ColorValue` union type.
Per our docs, React Native supports specifying colours as RGBA values packed into ints: https://reactnative.dev/docs/colors#color-ints. It looks like this case was missed in D6226807 (https://github.com/facebook/react-native/commit/da047966e4c2064a48e02ff74830c99808d8194b) when we started typing the `StyleSheet` API with Flow.
Changelog: [General][Fixed] - Support numeric color values in StyleSheet's Flow types
Reviewed By: yungsters
Differential Revision: D34140748
fbshipit-source-id: 5bfe2995a473260926fa3c8b6926bb841615d393
Summary:
Changelog: [Internal]
Fixes `normalizeColor` to always return the normalized color. Previously, when normalization was delegated to `normalizeColorObject`, we would return the *original* color object, which is a bug.
Reviewed By: javache
Differential Revision: D34048595
fbshipit-source-id: 083cbe36be2311ea9cffe8ef61e6a986840aec71
Summary:
This diff runs the codemod to add type annotations to function parameters in preparation for Flow's local type inference (LTI) project. I ran the codemod over xplat/js and reverted any files that had flow errors in them. See the list of commands run to see the regeneration of various files.
Changelog:
[Internal][Changed] - Added type annotations
Reviewed By: yungsters
Differential Revision: D32075270
fbshipit-source-id: 6a9cd85aab120b4d9e690bac142a415525dbf298
Summary:
Changes `react-native/normalize-color` to be useable from Node.js by making the following changes:
1. Rename `base.js` to `index.js` so importing is more convenient.
2. Move Flow definitions into a seprate library definition flow so `index.js` can be consumed directly.
I also made a few improvements to the actual implementation:
1. Avoid allocating `matchers` for non-strings.
2. Avoid allocating an object of all the color keywords. This will reduce memory usage (in exchange for slightly larger compiled bytecode).
Changelog:
[General][Changed] - react-native/normalize-color now supports Node.js
Reviewed By: lunaleaps
Differential Revision: D30595908
fbshipit-source-id: e6279e9ff815d8d1f489811187deabfdf53b8fbf
Summary:
Simplifies the Flow type for `ReactNativeStyleAttributes`, an internal module.
Changelog:
[Internal]
Reviewed By: TheSavior
Differential Revision: D29019311
fbshipit-source-id: cf95dac4b8c2261812cc1d753255dfb905540759
Summary:
Deletes `StyleSheetValidation` because it is `prop-types` in disguise.
Changelog:
[General][Removed] - `StyleSheet.create` will no longer do DEV-time validation.
Reviewed By: TheSavior
Differential Revision: D29019310
fbshipit-source-id: bfe886d8dc09a1aa8dac4a73bfd62f481e3eb9e9
Summary:
Allow you to harvest the `UIAccessibilityContrastHigh` trait from iOS to show accessible colors when high contrast mode is enabled.
```jsx
// usage
PlatformColorIOS({
light: '#eeeeee',
dark: '#333333',
highContrastLight: '#ffffff',
highContrastDark: '#000000',
});
// {
// "dynamic": {
// "light": "#eeeeee",
// "dark": "#333333",
// "highContrastLight": "#ffffff",
// "highContrastDark": "#000000",
// }
// }
```
This is how apple's own dynamic system colors work under the hood (https://developer.apple.com/design/human-interface-guidelines/ios/visual-design/color/#dynamic-system-colors)
---
The react native docs mention that more keys may become available in the future, which this PR is adding:
> In the future, more keys might become available for different user preferences, like high contrast.
https://reactnative.dev/docs/dynamiccolorios
## Changelog
<!-- Help reviewers and the release process by writing your own changelog entry. For an example, see:
https://github.com/facebook/react-native/wiki/Changelog
-->
[iOS] [Added] - High contrast dynamic color options for dark and light mode.
Pull Request resolved: https://github.com/facebook/react-native/pull/31651
Test Plan: Added unit tests for `normalizeColor` to pass the high contrast colors downstream to RCTConvert
Reviewed By: lunaleaps
Differential Revision: D28922536
Pulled By: p-sun
fbshipit-source-id: f81417f003c3adefac50e994e62b9be14ffa91a1
Summary:
If an invalid color is supplied to a native component that expects `Array<ColorValue>`, it is currently possible to produce an array that contains null or undefined elements. This is problematic because the native component may not know what to do with the null or undefined value.
This changes `processColorArray` to always return an array with valid color values. Any invalid color values will fallback to being transparent black, `0x00000000`.
Changelog:
[General][Fixed] - For native components that accept color arrays, invalid elements will now fallback to transparent with a console error.
Reviewed By: JoshuaGross
Differential Revision: D27542291
fbshipit-source-id: efa5d130644b3aee68d2b9fad6fdb61af11a2966
Summary:
ES Modules implicitly enable strict mode. Adding the "use strict" directive is, therefore, not required.
This diff removes all "use strict" directives from ES modules.
Changelog:
[Internal]
Reviewed By: motiz88
Differential Revision: D26172715
fbshipit-source-id: 57957bcbb672c4c3e62b1db633cf425c1c9d6430
Summary:
This change contains the suppressions for the up coming v0.142.0 Flow release.
The new suppressions are a result the following changes:
* Disallow flowing functions or inexact objects to indexed objects to improve object soundness. This can cause errors if you are passing a function or inexact objects when an indexed object is expected.
* Flow now processes imports before checking the body of a file. In some rare cases this can expose previously skipped errors due to the processing order.
Reviewed By: mroch
Differential Revision: D25820434
fbshipit-source-id: 59cc1d852ffc8cc39f0d5112ce485fb33f05c092
Summary:
Rewrites `splitLayoutProps`, which is only used by `ScrollView`.
- Improve type safety by avoiding `DangerouslyImpreciseStyle`.
- Avoid allocating objects when it is not necessary.
- Avoid allocating a object enumeratig layout props by using a switch statement.
Changelog:
[Internal]
Reviewed By: JoshuaGross, kacieb
Differential Revision: D25097226
fbshipit-source-id: 2050c03b681024212c06a48b7eb05f28c14415f9
Summary:
Refactors `flattenStyle` so that it preserves the style type of the argument. This lets us avoid using `DangerouslyImpreciseStyleProp` where we can.
Changelog:
[Internal]
Reviewed By: JoshuaGross, nadiia, kacieb
Differential Revision: D25097227
fbshipit-source-id: df6af6fefab25dbb62e3c81897c3cef98619a9c7
Summary:
We're planning a fix in Flow (D24112595) that uncovers some existing errors that were
previously suppressed. Adding these annotations prevents them from surfacing during the
deploy of the fix.
Changelog: [Internal]
Reviewed By: dsainati1
Differential Revision: D24147994
fbshipit-source-id: fef59a9427da6db79d4824e39768dd5ad0a8d1a3
Summary:
Removes the legacy `react-animated` package configuration and collapses the `Animated/src/` directory into `Animated/`.
Also, reconfigures all references to `Animated/src/` to just be `Animated/`.
Changelog:
[Internal]
Reviewed By: cpojer
Differential Revision: D22450848
fbshipit-source-id: 9fd4861e9f357d817d82e9fec71967a2936a3830
Summary:
This PR adds support for the `shadowColor` style on Android.
This is possible as of Android P using the `setOutlineAmbientShadowColor` and `setOutlineSpotShadowColor` View methods. The actual rendered color is a multiplication of the color-alpha, shadow-effect and elevation-value.
## Changelog
`[Android] [Added] - Add support for shadowColor on API level >= 28`
Pull Request resolved: https://github.com/facebook/react-native/pull/28650
Test Plan:
- Only execute code on Android P
- Added Android `BoxShadow` tests to RNTester app

Reviewed By: mdvacca
Differential Revision: D21125479
Pulled By: shergin
fbshipit-source-id: 14dcc023977d7a9d304fabcd3c90bcf34482f137
Summary:
https://github.com/facebook/react-native/issues/27264 changed stylesheet validation to avoid enumerating properties on the prototype of a style. It introduces a secondary behavior change, where null/undefined styles used to be tolerated but now lead to an exception. This is because `for in undefined` will noop where `for of Object.keys(undefined)` will throw.
This scenario of undefined/null styles seems to actually show up in practice and was previously well tolerated. E.g. `Button.js` has code that looks like this:
```jsx
const styles = StyleSheet.create({
button: Platform.select({
ios: {},
android: {
elevation: 4,
// Material design blue from https://material.google.com/style/color.html#color-color-palette
backgroundColor: '#2196F3',
borderRadius: 2,
},
}),
```
For non ios/Android platforms, that creates a style object which looks like:
```js
{
button: undefined,
...
}
```
This previously meant that the component would be unstyled if created, but now means out-of-tree platforms throw if the builtin Button component is required.
This change restores the previous `for in` loop but adds a `hasOwnProperty` check to avoid properties on prototypes.
## Changelog
[General] [Fixed] - Restore Previous Behavior for StyleSheet Validation of Null/Undefined Styles
Pull Request resolved: https://github.com/facebook/react-native/pull/29171
Test Plan: Validated that importing Buttons will no longer cause an exception, and that invalid properties are still caught.
Reviewed By: JoshuaGross
Differential Revision: D22118379
Pulled By: TheSavior
fbshipit-source-id: 650c64b934ccd12a3dc1b75e95debc359925ad73
Summary:
This diff makes the ColorValue export "official" by exporting it from StyleSheet in order to encourage its use in product code.
Changelog: Moved ColorValue export from StyleSheetTypes to StyleSheet
Reviewed By: TheSavior
Differential Revision: D21076969
fbshipit-source-id: 972ef5a1b13bd9f6b7691a279a73168e7ce9d9ab
Summary:
This change removes the `ColorAndroid` API. It was added more as a validation tool than as something useful to a developer. When making the original [PlatformColor PR](https://github.com/facebook/react-native/pull/27908) we felt it was valuable and useful to have working platform specific methods for the two platforms in core to test that the pattern worked in app code (PlatformColorExample.js in RNTester) and that the Flow validation worked, etc. Practically `PlatformColor()` is more useful to a developer on Android than `ColorAndroid()`. Now that the construct has served its purpose, this PR removes the `ColorAndroid` function and its related tests and other collateral.
## Changelog
<!-- Help reviewers and the release process by writing your own changelog entry. For an example, see:
https://github.com/facebook/react-native/wiki/Changelog
-->
[Android] [Removed] - Remove ColorAndroid function as it adds no value over PlatfromColor
Pull Request resolved: https://github.com/facebook/react-native/pull/28577
Test Plan: RNTester in both iOS and Android was tested. Jest tests, Flow checks, Lint checks all pass.
Reviewed By: cpojer
Differential Revision: D20952613
Pulled By: TheSavior
fbshipit-source-id: 7d2cbaa2a347fffe59a1f3a26a210676008fdac0
Summary:
The [PlatformColor PR](https://github.com/facebook/react-native/pull/27908) added support for iOS and Android to express platform specific color values. The primary method for an app to specify such colors is via the `PlatformColor()` method that takes string arguments. The `PlatformColor` method returns an opaque Flow type enforcing that apps use the PlatformColor method instead of creating Objects from scratch -- doing so would make it harder to write static analysis tools around Color values in the future. But in addition to `PlatformColor()`, iOS has a `DynamicColorIOS()` method that takes an Object. The Flow type for this Object cannot be opaque, but we still want to enforce that app code doesn't pass variables instead of Object literals or that values in the Objects are variables. To ensure `DynamicColorIOS()` can be statically analyzed this change adds an ESLint rule to enforce that `DynamicColorIOS()` takes an Object literal of a specific shape. A `ColorAndroid()` was also introduced not for practical use but just to test having platform specific methods for more than one platform in the same app. A second ESLint rule is created for `ColorAndroid` as well.
## Changelog
[General] [Changed] - Add ES Lint rules for `DynamicColorIOS()`and `ColorAndroid()`
Pull Request resolved: https://github.com/facebook/react-native/pull/28398
Test Plan: `yarn lint` passes.
Reviewed By: cpojer
Differential Revision: D20685383
Pulled By: TheSavior
fbshipit-source-id: 9bb37ccc059e74282b119577df0ced63cb9b1f53
Summary:
This gets us on the latest Prettier 2.x:
https://prettier.io/blog/2020/03/21/2.0.0.html
Notably, this adds support for TypeScript 3.8,
which introduces new syntax, such as `import type`.
Reviewed By: zertosh
Differential Revision: D20636268
fbshipit-source-id: fca5833d003804333a05ba16325bbbe0e06d6c8a
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:
Fixed some url in the code that was outdated.
## Changelog
[Internal] [Fixed] - Fix outdated url in Image Example of RNTester and comment in StyleSheet Type
Pull Request resolved: https://github.com/facebook/react-native/pull/28285
Test Plan: Url can be accessed, and content displayed makes sense.
Differential Revision: D20464293
Pulled By: shergin
fbshipit-source-id: f0c97f7a95ed2a3d6c396cff6cda0bdaab7f5c35
Summary:
In heap snapshots, it was found that really large (20 MB) strings representing network data
were being logged as part of `Systrace.beginEvent` strings from `MessageQueue` in DEV mode.
To combat this, use `JSON.stringify` with limits to keep the depth, strings, arrays, and objects
in check.
Changelog: [Internal] Change `stringifySafe` to have max limits on string size
Reviewed By: yungsters
Differential Revision: D20016501
fbshipit-source-id: e123016557bc154e4210e0b4df44360570da8016
Summary:
This Pull Request implements the PlatformColor proposal discussed at https://github.com/react-native-community/discussions-and-proposals/issues/126. The changes include implementations for iOS and Android as well as a PlatformColorExample page in RNTester.
Every native platform has the concept of system defined colors. Instead of specifying a concrete color value the app developer can choose a system color that varies in appearance depending on a system theme settings such Light or Dark mode, accessibility settings such as a High Contrast mode, and even its context within the app such as the traits of a containing view or window.
The proposal is to add true platform color support to react-native by extending the Flow type `ColorValue` with platform specific color type information for each platform and to provide a convenience function, `PlatformColor()`, for instantiating platform specific ColorValue objects.
`PlatformColor(name [, name ...])` where `name` is a system color name on a given platform. If `name` does not resolve to a color for any reason, the next `name` in the argument list will be resolved and so on. If none of the names resolve, a RedBox error occurs. This allows a latest platform color to be used, but if running on an older platform it will fallback to a previous version.
The function returns a `ColorValue`.
On iOS the values of `name` is one of the iOS [UI Element](https://developer.apple.com/documentation/uikit/uicolor/ui_element_colors) or [Standard Color](https://developer.apple.com/documentation/uikit/uicolor/standard_colors) names such as `labelColor` or `systemFillColor`.
On Android the `name` values are the same [app resource](https://developer.android.com/guide/topics/resources/providing-resources) path strings that can be expressed in XML:
XML Resource:
`@ [<package_name>:]<resource_type>/<resource_name>`
Style reference from current theme:
`?[<package_name>:][<resource_type>/]<resource_name>`
For example:
- `?android:colorError`
- `?android:attr/colorError`
- `?attr/colorPrimary`
- `?colorPrimaryDark`
- `android:color/holo_purple`
- `color/catalyst_redbox_background`
On iOS another type of system dynamic color can be created using the `IOSDynamicColor({dark: <color>, light:<color>})` method. The arguments are a tuple containing custom colors for light and dark themes. Such dynamic colors are useful for branding colors or other app specific colors that still respond automatically to system setting changes.
Example: `<View style={{ backgroundColor: IOSDynamicColor({light: 'black', dark: 'white'}) }}/>`
Other platforms could create platform specific functions similar to `IOSDynamicColor` per the needs of those platforms. For example, macOS has a similar dynamic color type that could be implemented via a `MacDynamicColor`. On Windows custom brushes that tint or otherwise modify a system brush could be created using a platform specific method.
## Changelog
[General] [Added] - Added PlatformColor implementations for iOS and Android
Pull Request resolved: https://github.com/facebook/react-native/pull/27908
Test Plan:
The changes have been tested using the RNTester test app for iOS and Android. On iOS a set of XCTestCase's were added to the Unit Tests.
<img width="924" alt="PlatformColor-ios-android" src="https://user-images.githubusercontent.com/30053638/73472497-ff183a80-433f-11ea-90d8-2b04338bbe79.png">
In addition `PlatformColor` support has been added to other out-of-tree platforms such as macOS and Windows has been implemented using these changes:
react-native for macOS branch: https://github.com/microsoft/react-native/compare/master...tom-un:tomun/platformcolors
react-native for Windows branch: https://github.com/microsoft/react-native-windows/compare/master...tom-un:tomun/platformcolors
iOS
|Light|Dark|
|{F229354502}|{F229354515}|
Android
|Light|Dark|
|{F230114392}|{F230114490}|
{F230122700}
Reviewed By: hramos
Differential Revision: D19837753
Pulled By: TheSavior
fbshipit-source-id: 82ca70d40802f3b24591bfd4b94b61f3c38ba829