Summary:
Before the DevMenu would just open up as a DialogBox. After this change, the DialogBox will have a title. This should help distinguish between the Bridgeless DevMenu and the Bridge DevMenu.
Changelog: [Internal]
Reviewed By: JoshuaGross
Differential Revision: D29071185
fbshipit-source-id: 72533f10b73b36cd890fe152c6de901c867159f2
Summary:
With bridgeless mode enabled, there can be two instances of DevSupportManager. Previously, both of them wrote to the same files on disk. After this change, each instance will write the bundle to different files on disk.
Changelog: [Internal]
Reviewed By: sshic
Differential Revision: D29068794
fbshipit-source-id: 67270be17d084cc89ab618ea54f729f9b595b5f7
Summary:
Google Chrome debugging is only supported by the bridge. So, it makes sense to move it to BridgeDevSupportManager.
Changelog: [Internal]
Reviewed By: JoshuaGross
Differential Revision: D29031514
fbshipit-source-id: 4d6b6bb3bc298be5fe4d9f96c0d019676fe256db
Summary:
This diff prevents a NullPointerException caused by a race condition in the tear down of React Native.
changelog: [internal] internal
Reviewed By: JoshuaGross
Differential Revision: D29135942
fbshipit-source-id: 76d5a1f16c2ca63a146b56c761f5f9595dcfe2a5
Summary:
The mount items executed before the view attach can fail with the RetryableMountingLayerException, which we should either retry or skip the item. This change updates logic for such items to catch these exceptions.
Instead of passing `MountingManager` to execute the items, this change now passes a reference to the `MountItemDispatcher` (abstracted through interface to resolve cycle between the manager and dispatcher). The dispatcher executes the queue directly and schedules retry together with the next batch.
Changelog: [Internal]
Reviewed By: JoshuaGross
Differential Revision: D29068063
fbshipit-source-id: 04030b21db188d5617c3448322d25ba77d5fbb9f
Summary:
This feature is still causing some number of crashes, though prod impact is not yet determined. For safety I'm adding a feature flag so we can disable this if necessary.
Changelog: [internal]
Reviewed By: kacieb
Differential Revision: D29117957
fbshipit-source-id: 3b19bac9dd00735f51f5c9cba606378b2a62975e
Summary:
This PR bumps Fresco to 2.5.0, which is first version on MavenCentral since jCenter announcement.
## Changelog
[Android] [Changed] - Bump Fresco to 2.5.0
Pull Request resolved: https://github.com/facebook/react-native/pull/31699
Test Plan: CI is green
Reviewed By: TheSavior
Differential Revision: D29031847
Pulled By: passy
fbshipit-source-id: 486ffbf5461d07d736c0ebe17c0c7726937db344
Summary:
## Rationale
The public methods of PackagerCommandListener should not be a part of the public API of DevSupportManagerBase. It's cleaner to just create a new PackagerCommandListener object inline, when we need it. This way, there're are less methods to think about when reasoning about the public API of DevSupportManagerBase.
Changelog: [Internal]
Reviewed By: JoshuaGross
Differential Revision: D29006835
fbshipit-source-id: 0eea86c22e7d676c94d29b240a1f39955d8216ab
Summary:
## Rationale
This reduces the surface area of DevSupportManager's public API.
Changelog: [Internal]
Reviewed By: JoshuaGross
Differential Revision: D29006836
fbshipit-source-id: 579364f6c556b8588f3b6bac79df3deb244a92e5
Summary:
## Rationale
This DevSupportManagerBase constructor isn't used anywhere, aside from VeniceDevSupportManager. Even in VeniceDevSupportManager, we should use the more specific constructor, because it informs readers of the class what specifically is being nullified in the base class. So, this diff gets rid of the smaller arity constructor.
Changelog: [Internal]
Reviewed By: JoshuaGross
Differential Revision: D29004542
fbshipit-source-id: 74e20db93cf1871a364bf228dc089cd7d124297f
Summary:
## Rationale
DevSupportManagerBase.handleReloadJS() implements reloads for the bridge. Therefore, it's best to move this method to BridgeDevSupportManager.
Changelog: [Internal]
Reviewed By: JoshuaGross
Differential Revision: D29004541
fbshipit-source-id: f77244e9c44cd442e7e0ab2845f78d699b143e66
Summary:
## Rationale
Throughout DevSupportManagerBase, we show/hide the DevLoadingView and simultaneously write to the `mDevLoadingViewVisible` boolean. This diff pulls all those boolean writes into methods, so that subclasses of DevSupportManagerBase can show/hide the DevLoadingView without accessing the boolean directly.
Changelog: [Internal]
Reviewed By: JoshuaGross
Differential Revision: D29004062
fbshipit-source-id: d54d79701e31f9ac8d1d1d44019199718fe1c8c0
Summary:
## Rationale
DevSupportManagerBase.loadSplitBundleFromServer() uses the bridge. So, it's best to move it to DevSupportManagerBase.
Changelog: [Internal]
Reviewed By: JoshuaGross
Differential Revision: D29004064
fbshipit-source-id: 9acfb769d57a44ee4871e1997ff0950c3d66b757
Summary:
PreAllocation currently always happens at revision 0 (after ShadowNode creation), and all CREATE mutations are triggered for ShadowNodes at revision 1 or higher (since CREATE mutations are generated by the differ, it means that all ShadowNodes have revision 1 or higher when CompleteRoot is called). This means that between PreAllocation and CREATE, we /always/ expect at least one clone.
It is possible for a node to be "non-view-forming" at revision 0, causing view preallocation to be skipped, and "view-forming" at revision 1 (causing the CREATE mutation to be thrown away, since all CREATE mutations of revision 0 or 1 are thrown away). This causes a crash. It is extremely marginal, but there are repros in the wild.
Thus, I'm introducing one new UIManager and Scheduler delegate method that allows the mounting layer to be notified of clones. If a clone from rev 0->1 results in a node going from non-view-forming to view-forming, we can preallocate then, as well.
This resolves this crash, and allows us to keep experimenting safely with this View PreAllocation optimization. I believe all edge-cases are accounted for.
Changelog: [Internal]
Reviewed By: sammy-SC
Differential Revision: D29043426
fbshipit-source-id: dff11d3140ded1cbb02a5518a3aeb52dc812cc50
Summary:
In T92179998, there is a crash when an EventEmitterWrapper is deallocated after the JS VM is torn down, and the EventEmitterWrapper tries to free its JSI::Pointer reference (double-free).
To make sure this happens less/not at all, free EventEmitterWrappers on ViewState when a view is deleted, instead of waiting for all of RN to be torn down.
Changelog: [Internal]
Reviewed By: fkgozali
Differential Revision: D29020768
fbshipit-source-id: 9d72a23bc9966992ef56c1e3ee523405d4333194
Summary:
Fixes https://github.com/facebook/react-native/issues/30502.
This PR fixes a crash caused by a `NullPointerException` when updating the `snapToOffsets` property.
I noticed this crash on production, you'll find the stack trace below.
Cause: `snapToOffsets` is annotated `Nullable` but there are no nullability check before calling `snapToOffsets.size()`.
## Changelog
[Android] [Fixed] - Fixed a crash when updating `snapToOffsets` to a null value
<!-- Help reviewers and the release process by writing your own changelog entry. For an example, see:
https://github.com/facebook/react-native/wiki/Changelog
-->
Pull Request resolved: https://github.com/facebook/react-native/pull/31681
Test Plan:
Passing `snapToOffsets={undefined}` to a `FlatList` used to crash on Android. Not anymore.
## Stacktrace
```
com.facebook.react.bridge.JSApplicationIllegalArgumentException: Error while updating property 'snapToOffsets' of a view managed by: RCTScrollView
at com.facebook.react.uimanager.ViewManagersPropertyCache$PropSetter.updateViewProp(ViewManagersPropertyCache.java:102)
at com.facebook.react.uimanager.ViewManagerPropertyUpdater$FallbackViewManagerSetter.setProperty(ViewManagerPropertyUpdater.java:136)
at com.facebook.react.uimanager.ViewManagerPropertyUpdater.updateProps(ViewManagerPropertyUpdater.java:56)
at com.facebook.react.uimanager.ViewManager.updateProperties(ViewManager.java:49)
at com.facebook.react.uimanager.NativeViewHierarchyManager.updateProperties(NativeViewHierarchyManager.java:143)
at com.facebook.react.uimanager.UIViewOperationQueue$UpdatePropertiesOperation.execute(UIViewOperationQueue.java:93)
at com.facebook.react.uimanager.UIViewOperationQueue$1.run(UIViewOperationQueue.java:908)
at com.facebook.react.uimanager.UIViewOperationQueue.flushPendingBatches(UIViewOperationQueue.java:1019)
at com.facebook.react.uimanager.UIViewOperationQueue.access$2600(UIViewOperationQueue.java:47)
at com.facebook.react.uimanager.UIViewOperationQueue$DispatchUIFrameCallback.doFrameGuarded(UIViewOperationQueue.java:1079)
at com.facebook.react.uimanager.GuardedFrameCallback.doFrame(GuardedFrameCallback.java:29)
at com.facebook.react.modules.core.ReactChoreographer$ReactChoreographerDispatcher.doFrame(ReactChoreographer.java:175)
at com.facebook.react.modules.core.ChoreographerCompat$FrameCallback$1.doFrame(ChoreographerCompat.java:85)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1008)
at android.view.Choreographer.doCallbacks(Choreographer.java:809)
at android.view.Choreographer.doFrame(Choreographer.java:740)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:995)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:246)
at android.app.ActivityThread.main(ActivityThread.java:8512)
at java.lang.reflect.Method.invoke(Method.java:-2)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Method.java:-2)
at com.facebook.react.uimanager.ViewManagersPropertyCache$PropSetter.updateViewProp(ViewManagersPropertyCache.java:87)
at com.facebook.react.uimanager.ViewManagerPropertyUpdater$FallbackViewManagerSetter.setProperty(ViewManagerPropertyUpdater.java:136)
at com.facebook.react.uimanager.ViewManagerPropertyUpdater.updateProps(ViewManagerPropertyUpdater.java:56)
at com.facebook.react.uimanager.ViewManager.updateProperties(ViewManager.java:49)
at com.facebook.react.uimanager.NativeViewHierarchyManager.updateProperties(NativeViewHierarchyManager.java:143)
at com.facebook.react.uimanager.UIViewOperationQueue$UpdatePropertiesOperation.execute(UIViewOperationQueue.java:93)
at com.facebook.react.uimanager.UIViewOperationQueue$1.run(UIViewOperationQueue.java:908)
at com.facebook.react.uimanager.UIViewOperationQueue.flushPendingBatches(UIViewOperationQueue.java:1019)
at com.facebook.react.uimanager.UIViewOperationQueue.access$2600(UIViewOperationQueue.java:47)
at com.facebook.react.uimanager.UIViewOperationQueue$DispatchUIFrameCallback.doFrameGuarded(UIViewOperationQueue.java:1079)
at com.facebook.react.uimanager.GuardedFrameCallback.doFrame(GuardedFrameCallback.java:29)
at com.facebook.react.modules.core.ReactChoreographer$ReactChoreographerDispatcher.doFrame(ReactChoreographer.java:175)
at com.facebook.react.modules.core.ChoreographerCompat$FrameCallback$1.doFrame(ChoreographerCompat.java:85)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1008)
at android.view.Choreographer.doCallbacks(Choreographer.java:809)
at android.view.Choreographer.doFrame(Choreographer.java:740)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:995)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:246)
at android.app.ActivityThread.main(ActivityThread.java:8512)
at java.lang.reflect.Method.invoke(Method.java:-2)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)
Caused by: java.lang.NullPointerException: Attempt to invoke interface method 'int com.facebook.react.bridge.ReadableArray.size()' on a null object reference
at com.facebook.react.views.scroll.ReactScrollViewManager.setSnapToOffsets(ReactScrollViewManager.java:107)
at java.lang.reflect.Method.invoke(Method.java:-2)
at com.facebook.react.uimanager.ViewManagersPropertyCache$PropSetter.updateViewProp(ViewManagersPropertyCache.java:87)
at com.facebook.react.uimanager.ViewManagerPropertyUpdater$FallbackViewManagerSetter.setProperty(ViewManagerPropertyUpdater.java:136)
at com.facebook.react.uimanager.ViewManagerPropertyUpdater.updateProps(ViewManagerPropertyUpdater.java:56)
at com.facebook.react.uimanager.ViewManager.updateProperties(ViewManager.java:49)
at com.facebook.react.uimanager.NativeViewHierarchyManager.updateProperties(NativeViewHierarchyManager.java:143)
at com.facebook.react.uimanager.UIViewOperationQueue$UpdatePropertiesOperation.execute(UIViewOperationQueue.java:93)
at com.facebook.react.uimanager.UIViewOperationQueue$1.run(UIViewOperationQueue.java:908)
at com.facebook.react.uimanager.UIViewOperationQueue.flushPendingBatches(UIViewOperationQueue.java:1019)
at com.facebook.react.uimanager.UIViewOperationQueue.access$2600(UIViewOperationQueue.java:47)
at com.facebook.react.uimanager.UIViewOperationQueue$DispatchUIFrameCallback.doFrameGuarded(UIViewOperationQueue.java:1079)
at com.facebook.react.uimanager.GuardedFrameCallback.doFrame(GuardedFrameCallback.java:29)
at com.facebook.react.modules.core.ReactChoreographer$ReactChoreographerDispatcher.doFrame(ReactChoreographer.java:175)
at com.facebook.react.modules.core.ChoreographerCompat$FrameCallback$1.doFrame(ChoreographerCompat.java:85)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1008)
at android.view.Choreographer.doCallbacks(Choreographer.java:809)
at android.view.Choreographer.doFrame(Choreographer.java:740)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:995)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:246)
at android.app.ActivityThread.main(ActivityThread.java:8512)
at java.lang.reflect.Method.invoke(Method.java:-2)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)
```
Reviewed By: ShikaSD
Differential Revision: D28965864
Pulled By: JoshuaGross
fbshipit-source-id: f08f1df371c1892935e1290806cc67d34394203b
Summary:
This is a re-land of D28810022 (7e9c741146), which was reverted due to T92179998. The fix is in D28938530. This issue could also be resolved by preventing more view preallocations (D28811419 (8ca18f0b60)).
---
EventEmitter is not transmitted from C++ to Java until an UPDATE operation is enqueued.
Practically this usually happens "right away", but in the case of an Image component, especially, the EventEmitter could be missing while events are being fired from the native side (for example, loading events).
The fix is just to pass EventEmitter in sooner, in both Create and Preallocate. There should be no ill effect since EventEmitter is nullable anyway.
One potential side-effect: since Views can be PreAllocated and potentially never deallocated until StopSurface is called, this could result in more EventEmitter objects being leaked and retained from Java. I believe the fix is to remove PreAllocated Views more aggressively.
Changelog: [Internal]
Reviewed By: sammy-SC
Differential Revision: D28938637
fbshipit-source-id: c9e290a24ed15c28881e3eead4a5f580f66b288f
Summary:
setJSResponder/clearJSResponder have been in use in prod for a while and are stable. Ship them in code.
Changelog: [Internal]
Reviewed By: sammy-SC
Differential Revision: D28889894
fbshipit-source-id: 1c42526cd890d528062eeb50761fc49cc6109d76
Summary:
Several accessibilityRole strings are hardcoded to only English on Android. Swap them to just use the platform constants. This way, TalkBack will handle translations.
This change swaps roles "search", "button", and "togglebutton" roles to use the platform description.
Changelog:
[Android][Changed] Localize "search", "button", and "togglebutton" accessibility roles by using the platform roles
Reviewed By: lunaleaps
Differential Revision: D28077246
fbshipit-source-id: 5b88a6fd7e78b3426506f253b823ecca0608c4bc
Summary:
Gradle has been showing below warning for a while, and this PR fixes the warning using maven-publish plugin, thus taking us one step closer to Gradle 7.x.
> The maven plugin has been deprecated. This is scheduled to be removed in Gradle 7.0. Please use the maven-publish plugin instead. Consult the upgrading guide for further information: https://docs.gradle.org/6.9/userguide/upgrading_version_5.html#legacy_publication_system_is_deprecated_and_replaced_with_the_publish_plugins
Configured maven-publish plugin according to https://developer.android.com/studio/build/maven-publish-plugin, also added **installArchives** task for backwards compatibility.
## Changelog
[Internal] [Changed] - use maven-publish plugin to build and publish Android artifact
Pull Request resolved: https://github.com/facebook/react-native/pull/31611
Test Plan: ./gradlew :ReactAndroid:installArchives will create **android** directory for local maven repository with **react-native** package.
Reviewed By: yungsters
Differential Revision: D28802435
Pulled By: ShikaSD
fbshipit-source-id: 7bc7650a700e1a61213c5ec238bcb24fdca954db
Summary:
Don't allocate large arrays on stack when copying native pointers, use heap based array.
Today the code copies the native pointers on the stack, since it may be too big, lets make sure to use heap based allocating using std::vector.
This array is afterwards converted into a reversed map from index to pointer, so it is heap based anyhow.
Changelog: [Internal] Don't allocate large arrays on stack when copying native pointers, use heap based array
Reviewed By: Andrey-Mishanin
Differential Revision: D28747213
fbshipit-source-id: da69b4b2d0960fdade9f07f44654b30d6dacc43a
Summary:
The RuntimeExecutor that Fabric gets from the bridge doesn't call JSIExecutor::flush(). In the legacy NativeModule system, we're supposed to flush the queue of NativeModule calls after every call into JavaScript. The lack of this flushing means that we execute NativeModule calls less frequently with Fabric enabled, and TurboModules disabled. It also means that [the microtask checkpoints we placed inside JSIExecutor::flush()](https://www.internalfb.com/code/fbsource/[62f69606ae81530f7d6f0cba8466ac604934c901]/xplat/js/react-native-github/ReactCommon/jsiexecutor/jsireact/JSIExecutor.cpp?lines=427%2C445) won't be executed as frequently, with Fabric enabled.
Changelog: [Android][Fixed] - Flush NativeModule calls with Fabric on Android, on every Native -> JS call.
Reviewed By: JoshuaGross, mdvacca
Differential Revision: D28620982
fbshipit-source-id: ae4d1c16c62b6d4a5089e63104ad97f4ed44c440
Summary:
Virtual views that are flattened and don't "FormsView" on-screen should not be preallocated.
Changelog: [Internal]
Reviewed By: mdvacca
Differential Revision: D28811419
fbshipit-source-id: 949dcbf4cf3791355c58af785603b35fa50f3f02
Summary:
This hack should not be necessary. It should be fixed at Differ or LayoutAnimations level if there are existing issues there.
Changelog: [Internal]
Reviewed By: mdvacca
Differential Revision: D28810021
fbshipit-source-id: 98b8d2ae9991ad527a3b3e90943d75063b2a4496
Summary:
jcenter is read-only now, and newer versions of dependencies will be published to either MavenCentral or Jitpack. This PR removes jcenter to avoid future issues, then uses MavenCentral and Jitpack as replacement. Current flipper depends on Stetho version that is not available on MavenCentral, so had to exclude and bump the version.
Both Gradle and Buck successfully download all the dependencies.
## Changelog
[Android] [Changed] - Remove jcenter
Pull Request resolved: https://github.com/facebook/react-native/pull/31609
Test Plan: rn-tester builds and runs as expected.
Reviewed By: mdvacca
Differential Revision: D28802444
Pulled By: ShikaSD
fbshipit-source-id: 043ef079d0cda77a1f8dd732678452ed712741a4
Summary:
EventEmitter is not transmitted from C++ to Java until an UPDATE operation is enqueued. Practically this usually happens "right away", but in the case of an Image component, especially, the EventEmitter could be missing while events are being fired from the native side (for example, loading events).
The fix is just to pass EventEmitter in sooner, in both Create and Preallocate. There should be no ill effect since EventEmitter is nullable anyway.
One potential side-effect: since Views can be PreAllocated and potentially never deallocated until StopSurface is called, this could result in more EventEmitter objects being leaked and retained from Java. I believe the fix is to remove PreAllocated Views more aggressively.
Changelog: [Internal]
Reviewed By: mdvacca
Differential Revision: D28810022
fbshipit-source-id: ae4c8b4eefe619d9a99fa5f90f612d6dd4880da5
Summary:
Bump Gradle to 6.9 which supports Apple Silicon, also Android Gradle Plugin 4.2.1 which defaults to Java 1.8 so no additional config required.
## Changelog
[Android] [Changed] - Bump Gradle to 6.9, Android Gradle Plugin to 4.2.1
Pull Request resolved: https://github.com/facebook/react-native/pull/31593
Test Plan: rn-tester builds and runs as expected
Reviewed By: mdvacca
Differential Revision: D28711942
Pulled By: ShikaSD
fbshipit-source-id: 2a4616cd0f17db7616ab29dea1652717f2cd0f6d
Summary:
Removes stale feature flag that was in production for a couple of months. Fix helped to decrease number of crashes significantly, so we can remove it.
Changelog: [Internal]
Reviewed By: mdvacca
Differential Revision: D28757995
fbshipit-source-id: 375da09c11f265e8bbe03cd99de1b83f168420ce
Summary:
Touch event logic has been recently modified to contain surfaceId only in the new renderer. This change aligns OSS tests that have been failing for them.
Changelog: [Internal]
Reviewed By: mdvacca
Differential Revision: D28749961
fbshipit-source-id: 483ab3ac97bbdc4f1fbdb2a8c699ef060cca9f77
Summary:
Adds logs to indicate that MountItem was queued instead of executed.
Also moves logging of preMount items to dispatcher for consistent logging with other items.
Changelog: [Internal]
Reviewed By: mdvacca
Differential Revision: D28690203
fbshipit-source-id: 14d24f0bebb97a810127f5187b4d46f66b6c836f
Summary:
TL;DR: simplify and delete a bunch of stuff that shouldn't be necessary in Fabric.
I discovered that this event dispatcher (and the older one this is based on) is triple-queueing: we queue events into "staging", and then post "dispatch events" to only run /on the JS thread/. Even in Fabric. Then, each of these events is emitted into C++ where they are queued /again/! This refactor eliminates one more level of queueing - instead of scheduling dispatch for the JS thread, we just emit them directly to C++ when they're received in Java.
Unfortunately, the EventDispatcher is also used to drive AsyncEventBeat in C++:
1. EventBeatManager.onBatchEventDispatched: https://fburl.com/diffusion/qf6dyhsw
In the C++ impl, it indirectly will drive the AsyncEventBeat/AsyncEventBeatV2.
2. onBatchEventDispatched is ONLY called from EventDispatcherImpl: https://fburl.com/codesearch/mxk8ifyj
3. Which is queued and only runs on the JS thread: https://fburl.com/codesearch/czvbst4u
This means the AsyncEventBeat is only ticked when the JS thread is free, and ticks will be skipped when the JS thread is occupied for long periods.
Now, in this refactor, when this class is used it will drive AsyncEventBeat on every UI tick. This is also potentially not correct. On iOS (Fabric), AsyncEventBeat is driven when the UI thread is "about to sleep".
For now I'm not going to worry about that detail - it is significant, but Fabric+Android is currently /not doing the right thing/ and it's not clear that we want to maintain iOS behavior. This is something we need to discuss further and figure out.
Changelog: [Internal]
Reviewed By: mdvacca
Differential Revision: D28654033
fbshipit-source-id: b3cb9b706343c8dd3c4cf84f24388908c57e2138
Summary:
EventDispatcherImpl uses synchronized blocks all over to make it thread-safe. I'm concerned about the perf implications of this and creating contention between JS and UI threads.
This is locked behind a feature flag.
Enabled only for Fabric in StaticViewConfig mode, and a feature flag, for now.
Changelog: [Internal]
Reviewed By: mdvacca
Differential Revision: D28591331
fbshipit-source-id: ea8f93a2e1343ce37fa78690dcb62fe03594120f
Summary:
FlatList relies heavily on onScroll events + the measure API. In Fabric, usage of `measure` relies on C++ having an accurate view of the current scroll position of the ScrollView.
We already have a mechanism for updating the scroll position in C++ using UpdateState. But, it is only used currently at the /beginning/ and /end/ of scrolling, and UpdateState is not called /during/ scrolling at all.
This means that we will see a series of events like this while scrolling:
```
Scrolling begins
UPDATE C++ STATE: scrollLeft = 0, scrollTop = 0
JS event: onScroll x=0, y=0
JS event: onScroll x=0, y=100
JS event: onScroll x=0, y=200
...
JS event: onScroll x=0, y=1000
UPDATE C++ STATE: scrollLeft = 0, scrollTop = 1000
```
Notably, not many C++ state updates are queued; and the last one is queued AFTER the JS event is sent. The last JS event and UpdateState will race, which means that sometimes the C++ update will /lose/ and C++ will have an inaccurate view of the world when FlatList receives the onScroll event and calls `measure`.
My proposed solution, gated behind a feature flag, is to delay /some/ onScroll events until the C++ UpdateState has made its way back to Java, and send UpdateStates more frequently. The balance here is that UpdateState is a relatively expensive operation, so we probably still want to call it /less/ than we call onScroll. This means that `measure` will still return some incorrect results but will return correct results more frequently. Win?
Changelog: [Internal[
Reviewed By: mdvacca
Differential Revision: D28558380
fbshipit-source-id: 11c7cd714fae67ee5a94c4413be988481413ec03
Summary:
It's not supported, and building with libc++ using its unstable ABI
exposes the issue. Include the header to get the complete type.
Changelog: [Internal]
Reviewed By: lanza, sammy-SC
Differential Revision: D28405500
fbshipit-source-id: 65e039a465d8d736eaecb89e82895889fd2379ca
Summary:
This diff creates a ReactFeatureFlag to initialize MapBufferSo file during Fabric initialization.
This is necessary to be able to compare properly Mapbuffer vs ReadableNativeMap (because ReadableNativeMap c++ files is already included in the bridge so file)
changelog: [internal]
Reviewed By: JoshuaGross
Differential Revision: D28436044
fbshipit-source-id: 338e1bb72b5313dc29a309e1b0e979e7c8bd1c18
Summary:
Changelog: [internal]
This diff moves all calls to RuntimeExecutor to RuntimeScheduler. The calls are still immediately dispatched. Timing of events will not change.
The goal of this diff is to prepare infrastructure for Concurrent Mode.
Reviewed By: JoshuaGross
Differential Revision: D27938536
fbshipit-source-id: 750b0e21e0ecbd7aa5a14885ebc70aae82203bd4
Ramanpreet Nara
David Vacca
Andrei Shikov
Joshua Gross
Dulmandakh
Maxime Bertheau
fabriziobertoglio1987
Kacie Bawiec
Amir Shalem
Joshua Selbo
Andres Suarez
Shoaib Meenai
Samuel Susla
