Summary:
This diff adds nuance to timer creation. Imagine the following bit of JS:
```
setTimeout(() => {
console.log("Timeout")
}, 0);
setImmediate(() => {
setNine("Immediate");
});
```
In classic RN, `setTimeout` will be called async by the bridge, immediate is implemented in JS, so the ordering of logs will be:
1. Immediate
2. Timeout
In bridgeless RN `setTimeout` is called sync, so the ordering of the logs is:
1. Timeout
2. Immediate
In order to preserve ordering, this diff adds a timer creation method which doesn't immediately invoke it, but waits one frame to do so.
This PR does the same thing for android, and explains the reasoning for preserving behaviour (some products may rely on this behaviour) https://github.com/facebook/react-native/commit/f054928124a2308b2bd450acf8bb754a92ccb16a
Reviewed By: ejanzer
Differential Revision: D17535639
fbshipit-source-id: 3f734c420a6a95be2ee10e8d6ac48adc79ef1c96
Summary:
`addObserver` and `removeObserver` now accepts const references instead of pointers which indicates the intent (non-nullability and non-owning) clearly. The delegate methods are also marked as `const` to designate the possible concurrent execution (`const` means "thread-safe" here).
All changes are pure syntactical, nothing really changes (besides the fact overall code quality and redability).
Reviewed By: JoshuaGross
Differential Revision: D17535395
fbshipit-source-id: b0c6c872d44fee22e38fd067ccd3320e7231c94a
Summary: These NativeModules were easy to convert, since no other NativeModules in `React/Modules` depend on them.
Reviewed By: PeteTheHeat
Differential Revision: D16817959
fbshipit-source-id: 1036c2d437e1275776a185bf68c450c6454985df
Summary: Small adjustment to order of operations. In case eventEmitter is nil, we still want to set image to nil.
Reviewed By: shergin
Differential Revision: D17503570
fbshipit-source-id: fd013c60e1188bcf63ff28ff7aad814582a3ae34
Summary: The OSS change in this diff allows `RCTDisplayLink` to call out to an observer, even if the `RCTModuleData` isn't well formed. This is the case in bridgeless RN.
Reviewed By: ejanzer
Differential Revision: D17438647
fbshipit-source-id: 00d4d61d9126902180a7a77fc702f4221cf4d779
Summary: The OSS file touched in this diff is just a styling change.
Reviewed By: ejanzer
Differential Revision: D17400387
fbshipit-source-id: e51884d8942ba01e7da1662ac24429070e53a504
Summary:
Similar to Android Venice impl, I plan to reuse old Timing native module because it's quite complex, and there's not much to gain from re-writing it. When we delete bridge access from it, we can remove any cruft, but IMO it's quite lean already.
The name of this class is a little confusing IMO, I originally had it because it was similar to `Timers.java` but then Emily renamed :p Here's the architecture drawn out:
{F209114665}
If anyone has a better name I'm all ears.
Reviewed By: RSNara
Differential Revision: D17376028
fbshipit-source-id: 066ae0b379cd00538021a1327a4dd63d5a828608
Summary:
Instead of relying on the bridge to do module setup, allow for regular initialization.
Instead of relying on the bridge to execute timers, allow for a delegate to do the work.
Reviewed By: RSNara
Differential Revision: D17375924
fbshipit-source-id: 83adabf8c962a5d90a4ea623618903cd9fb79a99
Summary:
## Motivation
The concept behind JSCallInvoker doesn't necessarily have to apply only to the JS thread. On Android, we need to re-use this abstraction to allow execution of async method calls on the NativeModules thread.
Reviewed By: PeteTheHeat
Differential Revision: D17377313
fbshipit-source-id: 3d9075cbfce0b908d800a366947cfd16a3013d1c
Summary:
React Native components need a mechanism to specify their value to assistive technologies. This PR adds the notion of accessibilityValueDescription-- a property which either contains a textual description of a component's value, or for range-based components, such as sliders and progress bars, it contains range information (minimum, current, and maximum).
On iOS, the range-based info if present is converted into a percentage and added to the accessibilityValue property of the UIView. If text is present as part of the accessibilityValueDescription, it is used instead of the range-based information.
On Android, any range-based information in accessibilityValueDescription is exposed in the AccessibilityNodeInfo's RangeInfo. Text which is part of accessibilityValueDescription is appended to the content description.
## Changelog
[GENERAL] [Change] - add accessibilityValuedescription property.
Pull Request resolved: https://github.com/facebook/react-native/pull/26169
Test Plan: Added two new accessibility examples to RNTester, one which uses text and another which uses range-based info in accessibilityValueDescription. Verified that they both behave correctly on both Android and iOS.
Differential Revision: D17444730
Pulled By: cpojer
fbshipit-source-id: 1fb3252a90f88f7cafe1cbf7db08c03f14cc2321
Summary:
I wanted to configure the RN dev menu without having to write native code. This is pretty useful in a greenfield app since it avoids having to write a custom native module for both platforms (and might enable the feature for expo too).
This ended up a bit more involved than planned since callbacks can only be called once. I needed to convert the `DevSettings` module to a `NativeEventEmitter` and use events when buttons are clicked. This means creating a JS wrapper for it. Currently it does not export all methods, they can be added in follow ups as needed.
## Changelog
[General] [Added] - Export the DevSettings module, add `addMenuItem` method
Pull Request resolved: https://github.com/facebook/react-native/pull/25848
Test Plan:
Tested in an app using the following code.
```js
if (__DEV__) {
DevSettings.addMenuItem('Show Dev Screen', () => {
dispatchNavigationAction(
NavigationActions.navigate({
routeName: 'dev',
}),
);
});
}
```
Added an example in RN tester

Differential Revision: D17394916
Pulled By: cpojer
fbshipit-source-id: f9d2c548b09821c594189d1436a27b97cf5a5737
Summary:
@public
Both of these are used for turning BUCK configs and build mode into compiler flags, so we should combine them to avoid confusion on where they are to be used.
Reviewed By: fkgozali
Differential Revision: D17262579
fbshipit-source-id: d145374fd619068f794018d79111720d30f6269c
Summary:
1. Start surface when first run, before, when we first load js bundle, `_startAllSurfaces` would not be called because `bridge == _batchedBridge`.
2. I think this fixes https://github.com/facebook/react-native/issues/23910, so I add the `return` in swizzle method to check.
cc shergin.
## Changelog
[iOS] [Fixed] - Make surface presenter manage start of surface
Pull Request resolved: https://github.com/facebook/react-native/pull/24372
Test Plan: N/A.
Differential Revision: D17337865
Pulled By: shergin
fbshipit-source-id: 2a1e413c006cae74ef6ca4c2b6b5ee8a46434b7f
Summary: Now we use `std::isfinite` instead of a pair of `std::isnan` and `std::isinf` which improves readability.
Reviewed By: sammy-SC
Differential Revision: D17312174
fbshipit-source-id: 76175524de566745962e96e46effe0bce52a09ad
Summary:
Before this change, we reapply all layout props for all newly mounted views (on `insert` instruction), now we use stored `_layoutMetrics` value to apply only changed subset.
This is only available for `RCTViewComponentView` subclasses (where we have an ability to store a previous value), all other implementation of `RCTComponentViewProtocol` will work as usual.
Reviewed By: JoshuaGross, sammy-SC
Differential Revision: D17312175
fbshipit-source-id: b202583c0c58987876d906b748ef3a749f8dad70
Summary:
Migrates ARTSurfaceView to Fabric,
This diff only migrates the necessary minimum for RCTVideo component to work. Other ART components are
ARTNode, ARTGroup, ARTRenderable, ARTShape and ARTText.
Reviewed By: mdvacca
Differential Revision: D17181298
fbshipit-source-id: c2656bbcaefde25e37a9e05a64d2691bc2343b67
Summary:
iOS13 status bar has now 3 styles
UIStatusBarStyleDefault, UIStatusBarStyleLightContent, UIStatusBarStyleDarkContent
UIStatusBarStyleDefault now acts as an automatic style which will set it’s value dynamically based on the the userinterfacestyle(One of the traits) of the viewcontroller that controls the status bar appearance.
## Changelog
[iOS] [Fixed] - iOS13 new status bar style UIStatusBarStyleDarkContent
Pull Request resolved: https://github.com/facebook/react-native/pull/26294
Differential Revision: D17314054
Pulled By: cpojer
fbshipit-source-id: ea109e729bb551dff314bc00a056860a8febb0e9
Summary:
Fix a bug where `CACurrentMediaTime` was being used to calculate the elapsed frame time, even though it's not comparable to `NSDate.timeIntervalSince1970` time.
## Changelog
[iOS] [Fixed] - callIdleCallbacks deadline calculation
Pull Request resolved: https://github.com/facebook/react-native/pull/26114
Test Plan: None
Differential Revision: D17314125
Pulled By: cpojer
fbshipit-source-id: 5061a3954371df2134f0c77dc260228668abe747
Summary: Previously, the `_scheduler` method in `RCTSurfacePresenter` was implemented as a lazy getter. The only problem with that is that Scheduler instance might be (re)created in the middle of the hot-reloading process (e.g. external request to relayout some Surface might trigger that). Since it does not make any sense to create an empty Scheduler during the reloading process, now the Scheduler creation only happens in constructor and right after the VM is reloaded.
Reviewed By: JoshuaGross
Differential Revision: D17299441
fbshipit-source-id: 273451bbb03e8cdf532131adfdf3bc60c34e997e
Summary: Implements the new `reportException` method in the iOS version of `ExceptionsManager`.
Reviewed By: sammy-SC
Differential Revision: D17226365
fbshipit-source-id: baa81424399175eaf8fc0835d4df01897e7fa468
Summary:
Refines the condition for ignoring updates to an already-open redbox on iOS.
Previously we would only update the stack trace if the message string in the update was exactly the same as in the initial redbox. With this diff we rely on the `exceptionId` parameter instead, and only fall back to string comparison if it's omitted (i.e. for non-JS uses of redbox on iOS).
NOTE: `exceptionId` is part of the existing ExceptionsManager API and is already supported on Android.
Reviewed By: sammy-SC
Differential Revision: D17226179
fbshipit-source-id: 5940110bf4e4358a8a1b3477e8d2cf8b224dd9f8
Summary: See previous diff in this stack
Reviewed By: motiz88
Differential Revision: D17156649
fbshipit-source-id: 12bdba248481258b9c6ca001472a41ca19fb4b6f
Summary:
For iOS < 13, default to "light" appearance, just like in Android (instead of `nil`).
This fixes the following redbox:
{F205818545}
Reviewed By: cpojer
Differential Revision: D17147970
fbshipit-source-id: b2adccd349a0a0ff7668c2f30e93164d23c3eea6
Summary:
For now, disable TM completely in test environment, like RNTester integration/unit tests. See details in T53341772
This also fixes the failure discussed in https://github.com/facebook/react-native/pull/26151
Reviewed By: PeteTheHeat
Differential Revision: D17147915
fbshipit-source-id: 1c48ebb9c3b81fc08bc33606dcc38c29297d6010
Summary:
blairv recently brought an issue with heap snapshots to our attention: When
captured from iOS, the viewer would quite regularly hang forever instead of
capturing the snapshot.
Further investigation showed that it was because the message that Hermes sends
to indicate that it had finished sending chunks of the heap snapshot was
arriving to chrome before the last chunk of the snapshot. This caused Chrome
to believe the snapshot was malformed.
I confirmed that:
- Sends from the Hermes Inspector were occurring in the correct order.
- The WebSocket protocol, being built on top of TCP, also preserves order.
- The Inspector Proxy in Metro was preserving the order of requests it was
given, but the responses were already in the wrong order when they reached
it.
This left the code that Hermes' Inspector calls into to send its messages. On
iOS, the logic to send the request is run on the global dispatch queue which
can and does schedule jobs concurrently with each other. Because the messages
containing heap snapshot chunks are much larger than the "Ok" message used to
indicate the end of the snapshot, the earlier chunk message would often lose
the race with the later "Ok" message.
There was already a serial background queue used by the websocket server to
schedule the actual sending of the message. I re-use it in this diff to
process the message as well.
The architecture of the [same code in Android](https://our.intern.facebook.com/intern/diffusion/FBS/browse/master/xplat/js/react-native-github/ReactAndroid/src/main/java/com/facebook/react/devsupport/InspectorPackagerConnection.java?commit=64c8954ec7be555509437db6944b9a71a350e87c&lines=283) initially seems to be broken in
the same way, but it is not, because AsyncTask does not run tasks concurrently
any more because Google found it exposed too many concurrency bugs to do so.
pakoito, it seems like you might be somewhat familiar with what's going on
here. Let me know if what I've done is sensible.
Reviewed By: pakoito
Differential Revision: D17106960
fbshipit-source-id: af85ff1753324340bb55fc63048e8bd424c8a983
Summary:
This diff fixes a redbox happens on every single hot-reload practically saying that ImageLoader is misconfigured. The issue happened because after reloading Fabric used the previous obsolete instance of `ImageLoader` created and stored inside old (and already destroyed) instance of Bridge. The fix is simple: We update all dependencies after the Bridge was reloaded.
See https://fb.workplace.com/groups/rn.support/permalink/2677343372314261/ for more details.
Reviewed By: mdvacca
Differential Revision: D17173702
fbshipit-source-id: 5ff0c418feae10ede9b76c184cd24ad06ee008b7
Summary:
@public
With this guard removed, the functionality is the same in RCT_DEV and non-RCT_DEV builds because RCTDevSettings will return NO (or not exist) in non-RCT_DEV builds, so this code will not be run.
Pros to this approach:
- Hot loading can be enabled in a non-RCT_DEV build
Cons:
- all builds now have this extra block of code, even if it won't be run
If the cons are too strong, I can move this code into a new RCT_DEFINE that inherits from RCT_DEV. (but notably, can be overridden)
Reviewed By: shergin
Differential Revision: D17118516
fbshipit-source-id: cc6c01cca6b2450c35274eccc939c9a2123e6b93
Summary:
@public
RCTDevMenu and RCTDevSettings are used to display the dev menu you see when you shake the device.
With this change in build flags, it's possible to build them into a production version of the app without pulling in all the RCT_DEV logic.
Reviewed By: shergin
Differential Revision: D17116992
fbshipit-source-id: 71458c49affe5bb94c52c9d8bb0f793b16d35828
Summary:
We added the accessibilityState property as a more semantically rich way for components to describe information about their state to accessibility services. This PR removes the old accessibilityStates property.
<!-- Explain the **motivation** for making this change. What existing problem does the pull request solve? -->
## Changelog
[General] [Change] - Remove accessibilityStates property.
Pull Request resolved: https://github.com/facebook/react-native/pull/26168
Test Plan: Ensure that RNTester accessibility examples function properly on both iOS and Android.
Differential Revision: D17152891
Pulled By: cpojer
fbshipit-source-id: d71d3cf0f2e0846979d2ba104b6c69e4e5725252
Summary:
The purpose of `EventBeat` is handling an asynchronous callback to itself which is being delivered on some different thread. That brings a challenge of ensuring that the `EventBeat` object stays valid during the timeframe of callback execution. The concept of Owner helps with that.
The owner is a shared pointer that retains (probably indirectly) the `EventBeat` object. To ensure the correctness of the call, `EventBeat` retains the owner (practically creating a retain cycle) during executing the callback. In case if the pointer to the owner already null, `EventBeat` skips executing the callback.
It's impossible to retain itself directly or refer to the shared pointer to itself from a constructor. `OwnerBox` is designed to work around this issue; it allows to store the pointer later, right after the creation of some other object that owns an `EventBeat`.
Reviewed By: JoshuaGross
Differential Revision: D17128549
fbshipit-source-id: 7ed34fd865430975157fd362f51c4a3d64214430
Summary: We don't use it anymore. (And that was debug only concept.)
Reviewed By: sammy-SC
Differential Revision: D17115538
fbshipit-source-id: 20aac5457e37666cbf9ca9f62cdfca411026c219
Summary: Storing a strong shared pointer to `ComponentDescriptor` can cause a memory leak. Therefore we enforce all call sides and params to be weak pointers. The only Scheduler preserves a retaining pointer to it (to prevent preliminary deallocation).
Reviewed By: sammy-SC
Differential Revision: D17115540
fbshipit-source-id: fdea7d19f742ff04d5ba5470dd9748a5b226aa7c
Summary:
Implements the Appearance native module as discussed in https://github.com/react-native-community/discussions-and-proposals/issues/126.
The purpose of the Appearance native module is to expose the user's appearance preferences. It provides a basic get() API that returns the user's preferred color scheme on iOS 13 devices, also known as Dark Mode. It also provides the ability to subscribe to events whenever an appearance preference changes.
The name, "Appearance", was chosen purposefully to allow for future expansion to cover other appearance preferences such as reduced motion, reduced transparency, or high contrast modes.
Changelog:
[iOS] [Added] - The Appearance native module can be used to prepare your app for Dark Mode on iOS 13.
Reviewed By: yungsters
Differential Revision: D16699954
fbshipit-source-id: 03b4cc5d2a1a69f31f3a6d9bece23f6867b774ea
Summary:
This is needed for use_frameworks! support with CocoaPods. Also, with recent changes to RCTImageLoader etc (moved to CoreModules), we need to add a dep to `React-RCTImage` pod.
If this approach works for 0.61 branch as well, it should be beneficial to pick. Note that https://github.com/facebook/react-native/pull/26151 attempts to fix similar things, but in 0.61 branch, not master.
Reviewed By: axe-fb
Differential Revision: D17120352
fbshipit-source-id: ca96a7a61a6422a6f9fc3a4bf3add51e6f33f4f1
Summary: `pullTransaction` can return an empty transaction. That's fine to interate over the empty collection and do nothing, but it's inneficient because we also call delegate methods around the loop (that can be expensive).
Reviewed By: sammy-SC
Differential Revision: D17053430
fbshipit-source-id: c78959d47ea22cd9bb99419f6a80de3ac8e89fd3
Summary: This diff adds support from `ScrollView::scrollEventThrottle` property on iOS.
Reviewed By: JoshuaGross
Differential Revision: D17000397
fbshipit-source-id: 93f23919a6a2588000c0eeca869171d1036348b6
Facebook:
This technically culminates M8 for iOS in Venice :D
We're now rendering `View` and `Text` completely without the bridge!
Reviewed By: shergin
Differential Revision: D16950332
fbshipit-source-id: f8c896323756411f5ac97586c0d85fdd6e39ed40
Summary:
Move RCTAccessibilityManager to CoreModules (since that's the only dir that supports TM).
Fixup some variable names to match spec.
Reviewed By: RSNara
Differential Revision: D16861739
fbshipit-source-id: a0a53b221dcc172979d1f2c83851ab92e23f2333
Summary:
@public
CADisplayLink strongly holds onto its target, so you have to use a weak proxy object to pass the target into the CADisplayLink.
Previously we passed a weak-self point (i.e. weakSelf) but this did not have the intended effect, since the pointer to self would still be passed to CADisplayLink, and thus it would hold onto the RCTUIImageViewAnimated strongly.
So is weakSelf doing anything other than using self?
It is but it's very minor and not useful. In the case that the object got de-allocated between assigning self to weakSelf and creating the CADisplayLink, then we would pass a nil target. This is actually impossible though because we are running an instance method, so self is implicitly retained! So semantically it is something different but in practice it is the same as passing self through.
Notes:
* This system was added originally in https://github.com/facebook/react-native/pull/24822
* https://github.com/facebook/react-native/pull/25636 then "enabled" this system by deprecating existing approach
Reviewed By: fkgozali
Differential Revision: D16939869
fbshipit-source-id: 7a0e947896f23aa30ad074d1dcb4d4db7543e00a
Summary: In D16805827, I moved ImageLoader to CoreModules. In the process, I migrated usages of `[_bridge moduleForClass:[RCTImageLoader class]]` to `[_bridge moduleForName:@"ImageLoader"]`. These two APIs aren't equivalent, however, since `[_bridge moduleForClass:[RCTImageLoader class]]` by default lazily loads the requested NativeModule, but `[_bridge moduleForName:@"ImageLoader"]` doesn't. So, I had to explicitly set `lazilyLoadIfNecessary` to `YES` in all the call-sites I migrated, to ensure that ImageLoader is correctly initialized when necessary.
Reviewed By: PeteTheHeat
Differential Revision: D16948165
fbshipit-source-id: 434697637dfa5e32de1c398744f9c28c19a6fd94
Summary: Follow pattern laid out by Kevin in D16001262 to convert a Core OSS native module to use TM generated spec.
Reviewed By: RSNara
Differential Revision: D16016391
fbshipit-source-id: f517777be44c68367d786f04c50cf12f240eed00
Summary: Missing space was causing this to show up as "themoduleForClass".
Reviewed By: shergin
Differential Revision: D16918867
fbshipit-source-id: c4bd19ca873d07e30e3fe8fc2c20277aab2d26d5
Summary:
Related to this bug: https://github.com/facebook/react-native/pull/25769
Note I also had to add to the bottom of my podfile because RCTLinking had APPLICATION_EXTENSION_API_ONLY='YES' by default somehow.
```
post_install do |installer|
installer.pods_project.targets.each do |target|
target.build_configurations.each do |config|
config.build_settings['APPLICATION_EXTENSION_API_ONLY'] = 'NO'
end
end
end
```
Pull Request resolved: https://github.com/facebook/react-native/pull/26077
Test Plan: Sandcastle should be sufficient.
Reviewed By: shergin
Differential Revision: D16860356
Pulled By: sammy-SC
fbshipit-source-id: 02cb3fd3f977420ccdc2991f0c3666ab0186b7bf
Summary: This bothers me, we renamed the project to drop the "Metro" a while ago.
Reviewed By: rubennorte
Differential Revision: D16831281
fbshipit-source-id: bb6de412eccda61b617580f3660e3e635f2d2815
Summary:
`NativeExceptionsManager.js` contains the JS spec for this native module. This diff moves the objc code to CoreModules (since it's the only directory that supports TM at the moment) and makes it conform to the spec.
NOTE: I will update podfiles after this diff is reviewed, before I land. Adding those generated changes makes it really hard to review.
Reviewed By: RSNara
Differential Revision: D16812212
fbshipit-source-id: 38b6e9a20ce15e7e9995df34493b37ed7adb2911
Summary: Instead of getting `RuntimeExecutor` from the bridge, pass it from above. Right now pass through `null`, but eventually this will work :)
Reviewed By: RSNara
Differential Revision: D16626288
fbshipit-source-id: bce527f85c0a79cfe6cf240a3633bbbe357f75c4
Summary: Instead of grabbing `imageManager` from the bridge, pass it from above. Right now, still use bridge to pass from above, but this gives us flexibility to not use bridge in the future.
Reviewed By: shergin
Differential Revision: D16504270
fbshipit-source-id: 7977a7957b659375f8348d26cd57b648e9d5959f