Summary: No need to keep it open; it just makes it harder to reason about error handling.
Reviewed By: majak
Differential Revision: D3518200
fbshipit-source-id: dc1af6eb0f75de7e9f73513ed1dd522048f76670
Summary:
Thanks for submitting a pull request! Please provide enough information so that others can review your pull request:
(You can skip this if you're fixing a typo or adding an app to the Showcase.)
Explain the **motivation** for making this change. What existing problem does the pull request solve?
Prefer **small pull requests**. These are much easier to review and more likely to get merged. Make sure the PR does only one thing, otherwise please split it.
**Test plan (required)**
Demonstrate the code is solid. Example: The exact commands you ran and their output, screenshots / videos if the pull request changes UI.
Make sure tests pass on both Travis and Circle CI.
**Code formatting**
Look around. Match the style of the rest of the codebase. See also the simple [style guide](https://github.com/facebook/react-native/blob/master/CONTRIBUTING.md#style-guide).
For more info, see the ["Pull Requests" section of our "Contributing" guidelines](https://github.com/facebook/react-native/blob/mas
Closes https://github.com/facebook/react-native/pull/7535
Differential Revision: D3509757
fbshipit-source-id: 70ff6c9c137c766ccb1173921f08571f48cb4f0b
Summary:
Implemented automatic IP detection for iOS, based on #6345 and #6362.
As the previous pull requests did, this works by writing the IP address of the host to a file.
Closes https://github.com/facebook/react-native/pull/8091
Differential Revision: D3427657
Pulled By: javache
fbshipit-source-id: 3f534c9b32c4d6fb9615fc2e2c3c3aef421454c5
Summary:
After cleaning up JS SourceMap code, these native methods are not needed anymore.
On iOS it saves another 30+ Mb during development.
Reviewed By: javache, astreet
Differential Revision: D3348975
fbshipit-source-id: a68ae9b00b4dbaa374b421029ae676fc69ae5a75
Summary:
This diff refactors the view update process into two stages:
1. The `reactSubviews` array is set, whose order matches the order of the JS components and shadowView components, as specified by the UIManager.
2. The `didUpdateReactSubviews` method is called, which actually inserts the reactSubviews into the view hierarchy.
This simplifies a lot of the hacks we had for special-case treatment of subviews: In many cases we don't want to actually insert `reactSubviews` into the parentView, and we had a bunch of component-specific solutions for that (typically overriding all of the reactSubviews methods to store views in an array). Now, we can simply override the `didUpdateReactSubviews` method for those views to do nothing, or do something different.
Reviewed By: wwjholmes
Differential Revision: D3396594
fbshipit-source-id: 92fc56fd31db0cfc66aac3d1634a4d4ae3903085
Summary:
This is a followup for "Add Shortcut "Double R" to Reload JS in iOS".
Please see the previous two revisions:[[ D3371536 | D3371536 ]], [[ D3343907 | D3343907 ]]
In previous revisions, we only tested with the iOS UIExplorer app, without testing in the iOS Catalyst app, where the key shortcuts we added are always invoked in TextInput components. It's due to a bug with the `UIApplicationDelegate`. Just fix this bug in this revision and successfully tested in the Catalyst app.
Reviewed By: mkonicek
Differential Revision: D3391045
fbshipit-source-id: 8b76fbfe7592218b02dd22502d25eebbc59f3cbc
Summary:
As per https://twitter.com/olebegemann/status/738656134731599872, our use of "main thread" to mean "main queue" seems to be unsafe.
This diff replaces the `NSThread.isMainQueue` checks with dispatch_get_specific(), which is the recommended approach.
I've also replaced all use of "MainThread" terminology with "MainQueue", and taken the opportunity to deprecate the "sync" param of `RCTExecuteOnMainThread()`, which, while we do still use it in a few places, is incredibly unsafe and shouldn't be encouraged.
Reviewed By: javache
Differential Revision: D3384910
fbshipit-source-id: ea7c216013372267b82eb25a38db5eb4cd46a089
Summary:
Allows developers to specify headers to include in the HTTP request
when fetching a remote image. For example, one might leverage this
when fetching an image from an endpoint that requires authentication:
```
<Image
style={styles.logo}
source={{
uri: 'http://facebook.github.io/react/img/logo_og.png',
headers: {
Authorization: 'someAuthToken'
}
}}
/>
```
Note that the header values must be strings.
Works on iOS and Android.
**Test plan (required)**
- Ran a small example like the one above on iOS and Android and ensured the headers were sent to the server.
- Ran a small example to ensure that \<Image\> components without headers still work.
- Currently using this code in our app.
Adam Comella
Microsoft Corp.
Closes https://github.com/facebook/react-native/pull/7338
Reviewed By: javache
Differential Revision: D3371458
Pulled By: nicklockwood
fbshipit-source-id: cdb24fe2572c3ae3ba82c86ad383af6d85157e20
Summary:
Enable double tap R on iOS, consistent with Android.
Keep the existing Cmd+R on iOS because people are already used to it.
Make Cmd+Key and Double Key both invalid when focus is in textview or textfield.
Also try to add Cmd+R in Android, but seems no good.
Reviewed By: nicklockwood
Differential Revision: D3343907
fbshipit-source-id: 68f7e3b0393711c137e1d932db33e1b6a2a19e09
Summary: This will make error messages more helpful.
Reviewed By: javache
Differential Revision: D3292400
fbshipit-source-id: d1e0bb24593058b75422824c0d351ede1320029e
Summary: AppState now subclasses NativeEventEmitter instead of using global RCTDeviceEventEmitter.
Reviewed By: javache
Differential Revision: D3310488
fbshipit-source-id: f0116599223f4411307385c0dab683659d8d63b6
Summary:
On iPad we may get two touch cancel events in direct succession. They would have the same coalescing key, which would result in unsuccesful attempt to coalesce them.
This diff fixes it by making sure two cancel events cannot have the same coalescing key.
(An alternative fix would be implementing coalescing logic for cancel events, but that sounds more complicated. It would be neccessary if there is a legit scenario where big number of cancel events are emitted in succesion.)
Reviewed By: javache
Differential Revision: D3292405
fbshipit-source-id: 1f269771dc81fdd637cf6ac3ee4725e5e2fec679
Summary:
This is a solution for the problem I raised in https://www.facebook.com/groups/react.native.community/permalink/768218933313687/
I've added a new native base class, `RCTEventEmitter` as well as an equivalent JS class/module `NativeEventEmitter` (RCTEventEmitter.js and EventEmitter.js were taken already).
Instead of arbitrary modules sending events via `bridge.eventDispatcher`, the idea is that any module that sends events should now subclass `RCTEventEmitter`, and provide an equivalent JS module that subclasses `NativeEventEmitter`.
JS code that wants to observe the events should now observe it via the specific JS module rather than via `RCTDeviceEventEmitter` directly. e.g. to observer a keyboard event, instead of writing:
const RCTDeviceEventEmitter = require('RCTDeviceEventEmitter');
RCTDeviceEventEmitter.addListener('keyboardWillShow', (event) => { ... });
You'd now write:
const Keyboard = require('Keyboard');
Keyboard.addListener('keyboardWillShow', (event) => { ... });
Within a component, you can also use the `Subscribable.Mixin` as you would previously, but instead of:
this.addListenerOn(RCTDeviceEventEmitter, 'keyboardWillShow', ...);
Write:
this.addListenerOn(Keyboard, 'keyboardWillShow', ...);
This approach allows the native `RCTKeyboardObserver` module to be created lazily the first time a listener is added, and to stop sending events when the last listener is removed. It also allows us to validate that the event strings being observed and omitted match the supported events for that module.
As a proof-of-concept, I've converted the `RCTStatusBarManager` and `RCTKeyboardObserver` modules to use the new system. I'll convert the rest in a follow up diff.
For now, the new `NativeEventEmitter` JS module wraps the `RCTDeviceEventEmitter` JS module, and just uses the native `RCTEventEmitter` module for bookkeeping. This allows for full backwards compatibility (code that is observing the event via `RCTDeviceEventEmitter` instead of the specific module will still work as expected, albeit with a warning). Once all legacy calls have been removed, this could be refactored to something more elegant internally, whilst maintaining the same public interface.
Note: currently, all device events still share a single global namespace, since they're really all registered on the same emitter instance internally. We should move away from that as soon as possible because it's not intuitive and will likely lead to strange bugs if people add generic events such as "onChange" or "onError" to their modules (which is common practice for components, where it's not a problem).
Reviewed By: javache
Differential Revision: D3269966
fbshipit-source-id: 1412daba850cd373020e1086673ba38ef9193050
Summary:
Modules which call JS methods directly, or use `sendDeviceEventWithName:`, can trigger effects in JS without ever being referenced from the JS code. This breaks some assumptions in my earlier diff about when modules can be lazily loaded.
Pending a better solution, I've put explicit `init` methods in these modules to ensure they are eagerly initialized (the downside to this is that they'll still be initialized even if they are never used).
Reviewed By: javache
Differential Revision: D3258232
fb-gh-sync-id: f925bc2e5339c1fbfcc244d4613062c5ab848fc2
fbshipit-source-id: f925bc2e5339c1fbfcc244d4613062c5ab848fc2
Summary:
Previously, if a module implemented `setBridge:` we assumed that it needs to be initialised on the main thread. This assumption was not really warranted however, and it was a barrier to deferring module initialization.
This diff tweaks the rules so that only modules that override `init` or `constantsToExport**` are assumed to require main thread initialization, and others can be created lazily when they are first used.
WARNING: this will be a breaking change to any 3rd party modules that are assuming `setBridge:` is called on the main thread. Those modules should be rewritten to move any code that requires the main thread into `init` or `constantsToExport` instead.
`**` We will also be examining whether `constantsToExport` can be done lazily, but for now any module that uses it will still be created eagerly when the bridge starts up.
Reviewed By: javache
Differential Revision: D3240682
fb-gh-sync-id: 48f309e3158bbccb52141032baf70def3e609371
fbshipit-source-id: 48f309e3158bbccb52141032baf70def3e609371
Summary: Using customDirectEventTypes or customBubblingEventTypes causes a viewmanager to be initialized at app start. This diff deprecates those methods and removes their usage from RCTScrollViewManager.
Reviewed By: majak
Differential Revision: D3218973
fb-gh-sync-id: 295bef3be9623b49b0cdcbf8a56e10d9b28126d9
fbshipit-source-id: 295bef3be9623b49b0cdcbf8a56e10d9b28126d9
Summary:
Now that we support initializing the bridge off the main thread, some of the assumptions in the bridge setup process are no longer safe.
In particular we were assuming that the JS executor and injected modules could always be synchronously initialized within bridge init, but that is only safe if those modules don't need to be set up on the main thread.
The setup for those modules was sync-dispatching to the main thread if bridge init happened on a background thread, and this lead to a deadlock under certain circumstances.
Reviewed By: javache
Differential Revision: D3224162
fb-gh-sync-id: 7319b70f541a46ef932cfe4f776e7e192f3ce1e8
fbshipit-source-id: 7319b70f541a46ef932cfe4f776e7e192f3ce1e8
Summary:When JSC throws an error on startup (e.g. a SyntaxError) or when invoking a method that is not caught by RCTExceptionsManager, we previously just reported is a native error, with a (useless) native stack trace in the redbox. This changes that behaviour to report a JS stacktrace.
The same issue was previously reported here: https://github.com/facebook/react-native/pull/5677
Reviewed By: majak
Differential Revision: D3037387
fb-gh-sync-id: 06f8333e0eb50dcef0b26284754262301b8a5f08
fbshipit-source-id: 06f8333e0eb50dcef0b26284754262301b8a5f08
Summary:Turns our using the same coalescing key until a person removes all fingers off screen is not ideal.
It doesn't work in a case where the first finger starts moving on screen and then a second finger joins it later (almost any pinch gesture),
since we would try to coalesce move events from the start when only one finger was touching screen with events where two fingers were moving on screen.
That doesn't work and results in a crash.
I've changed the logic for generating the coalescing key in order to prevent this.
We no longer have a single key for a single gesture, but we change the key each time amount of fingers increases ("touchStart") or decreases ("touchEnd").
Reviewed By: javache
Differential Revision: D3138275
fb-gh-sync-id: c32230ba401819fe3a70d1752b286d849520be89
fbshipit-source-id: c32230ba401819fe3a70d1752b286d849520be89
Summary:D3092867 / 1d3db4c5dc caused deadlock when chrome debugging was turned on, so it was reverted as D3128586 / 144dc30661.
The reason: I was calling `[_bridge dispatchBlock:^{ [self flushEventsQueue]; } queue:RCTJSThread];` from main thread and expecting it will `dispatch_async` to another,
since a held lock was being accessed the dispatched block and was released after the dispatch.
Turns out `RCTWebSocketExecutor` (which is used when chrome debugger is turned on) executes all blocks dispatched this way to `RCTJSThread` synchronously on the main thread.
This resulted in a deadlock. The "dispatched" block was trying to acquired lock which held by the same thread in the dispatching phase.
A fix for this is pretty simple. We will release the lock before dispatching the block.
However it's not super straightforward to see this won't introduce some race condition in a case with two threads where we would end up with events not being processed.
My thinking why that shouldn't happen goes like this: We could get in a bad state if `flushEventsQueue` would run on JS thread while `sendEvent:` is running on MT.
(I don't have a specific example how, maybe it's not possible. However when I show this case is safe we know we are good.)
The way how locking is setup in this diff the only possible scenario where these two threads would execute in these methods concurrently is JS holding the lock and MT going to enqueue another block on JS thread (since that's outside of "locked" zone).
But this scenarion can never happen, since if MT is about to enqueue the block on JS thread it means there cannot be a not yet fully executed block on JS thread.
Therefore nothing bad can happen.
So this diff brings back the reverted diff and adds to it the fix for the deadlock.
Reviewed By: javache
Differential Revision: D3130375
fb-gh-sync-id: 885a166f2f808551d7cd4e4eb98634d26afe6a11
fbshipit-source-id: 885a166f2f808551d7cd4e4eb98634d26afe6a11
Summary:The 200ms timeout was causing resource issues and causing a lot of overhead when you're not running the devtools, since it will basically create a new socket every 200ms.
Also clean up the way we do logging so it's completely compiled out in prod, and standardize all the names we use for threading to lowercase react.
Reviewed By: frantic
Differential Revision: D3115975
fb-gh-sync-id: e6e51c0621d8e9fc4eadb864acd678b8b5d322a1
fbshipit-source-id: e6e51c0621d8e9fc4eadb864acd678b8b5d322a1
Summary:Previously, (mostly touch and scroll) event handling on iOS worked in a hybrid way:
* All incoming coalesce-able events would be pooled and retrieved by js thread in the beginning of its frame (all of this happens on js thread)
* Any non-coalesce-able event would be immediately dispatched on a js thread (triggered from main thread), and if there would be pooled coalesce-able events they would be immediately dispatched at first too.
This behavior has a subtle race condition, where two events are produced (on MT) in one order and received in js in different order.
See https://github.com/facebook/react-native/issues/5246#issuecomment-198326673 for further explanation of this case.
The new event handling is (afaik) what Android already does. When an event comes we add it into a pool of events and dispatch a block on js thread to inform js there are events to be processed. We keep track of whether we did so, so there is at most one of these blocks waiting to be processed. When the block is executed js will process all events that are in pool at that time (NOT at time of enqueuing the block).
This creates a single way of processing events and makes it impossible to process them in different order in js.
The tricky part was making sure we don't coalesce events across gestures/different scrolls. Before this was achieved by knowing that gestures and scrolls start/end with non-coalesce-able event, so the pool never contained events that shouldn't be coalesced together. That "assumption" doesn't hold now.
I've re-added `coalescingKey` and made touch and scroll events use it to prevent coalescing events of the same type that should remain separate in previous diffs (see dependencies).
On top of it it decreases latency in events processing in case where we get only coalesce-able events. Previously these would be processed at begging of the next js frame, even when js would be free and could process them sooner. This delay is done, since they would get processed as soon as the enqueued block would run.
To illustrate this improvement let's look at these two systraces.
Before: https://cloud.githubusercontent.com/assets/713625/14021417/47b35b7a-f1d3-11e5-93dd-4363edfa1923.png
After: https://cloud.githubusercontent.com/assets/713625/14021415/4798582a-f1d3-11e5-8715-425596e0781c.png
Reviewed By: javache
Differential Revision: D3092867
fb-gh-sync-id: 29071780f00fcddb0b1886a46caabdb3da1d5d84
fbshipit-source-id: 29071780f00fcddb0b1886a46caabdb3da1d5d84
Summary: This was previously removed in D2884587, but we will need it going forward. See D3092867 for reasons why it's necessary again.
Reviewed By: javache
Differential Revision: D3092848
fb-gh-sync-id: 0d10dbac4148fcc8e035d32d8eab50f876d99e88
fbshipit-source-id: 0d10dbac4148fcc8e035d32d8eab50f876d99e88
Summary:Interface to `RCTBatchedBridge` was being declared in two different implementation files. This is suboptimal, since it makes it hard to mock that class in a test.
So I've merged and moved these two definitions in `RCTBridge+Private.h`, so it's still obvious it's a private class, but can be included if you really need it.
Reviewed By: javache
Differential Revision: D3126135
fb-gh-sync-id: 173e4c5c2925be387b92deb7f99952ca7bf28588
fbshipit-source-id: 173e4c5c2925be387b92deb7f99952ca7bf28588
Summary:`flowIDMap` lives on the bridge to map from the IDs used for the flow events in
JS and the ones generated by `RCTProfile` in the native side.
It was being accessed from multiple threads (the various modules' queues in the
bridge and the JS thread), so we lock before touching it.
Reviewed By: javache
Differential Revision: D3102745
fb-gh-sync-id: 93d012d124e8b5d1a390c10a98ef5e3a068ccf63
fbshipit-source-id: 93d012d124e8b5d1a390c10a98ef5e3a068ccf63
Summary:It was hard to understand which parts of the shadowview API are designed to be called only on the root view, and which were applicable to any view.
This diff extracts rootview-specific logic out into a new RCTRootShadowView class.
Reviewed By: majak
Differential Revision: D3063905
fb-gh-sync-id: ef890cddfd7625fbd4bf5454314b441acdb03ac8
shipit-source-id: ef890cddfd7625fbd4bf5454314b441acdb03ac8
Summary: For RAM bundling we don't want to hold the entire bundle in memory as that approach doesn't scale. Instead we want to seek and read individual sections as they're required. This rev does that by detecting the type of bundle we're dealing with by reading the first 4 bytes of it. If we're dealing with a RAM Bundle we bail loading.
Reviewed By: javache
Differential Revision: D3026205
fb-gh-sync-id: dc4c745d6f00aa7241203899e5ba136915efa6fe
shipit-source-id: dc4c745d6f00aa7241203899e5ba136915efa6fe
Summary:I've tested this manually, but I'm not sure how to write a test for this. Hopefully someone can help out there. The least I could do is provide a starting point for a PR to be accepted.
Additionally, I've renamed the existing `NSLineBreakMode` enum converter (inside `RCTConvert`) to use dashes in the names instead of camelcase (eg: `word-wrapping` instead of `wordWrapping`).
Fixes#6338
Closes https://github.com/facebook/react-native/pull/6339
Differential Revision: D3052391
Pulled By: nicklockwood
fb-gh-sync-id: 1536dfc139d7995095e9ee9d5f13ca86f90783c5
shipit-source-id: 1536dfc139d7995095e9ee9d5f13ca86f90783c5
Summary: This diff adds support for initializing the bridge on an arbitrary thread. This is helpful if you want to defer bridge creation, or prevent it from delaying your app startup.
Reviewed By: javache
Differential Revision: D2965725
fb-gh-sync-id: 8065fa89e850031c72ee4427351300986985e9de
shipit-source-id: 8065fa89e850031c72ee4427351300986985e9de
Summary:Initializing native modules can block the main thread for tens of milliseconds when it starts up, making it difficult to instantiate the bridge on demand without causing a performance blip.
This diff splits up the initialization of modules so that - although they still happen on the main thread - they don't block the thread continuously.
Reviewed By: javache
Differential Revision: D2965438
fb-gh-sync-id: 38c9c9d281e4672b5874d68b57d4c60d1d268344
shipit-source-id: 38c9c9d281e4672b5874d68b57d4c60d1d268344
Summary: The module initialization process is complex and full of race conditions. This diff adds a set of unit tests that verify that modules setup happens in the correct order, and enforces all the various conditions for main/background init.
Reviewed By: javache
Differential Revision: D2994145
fb-gh-sync-id: 92ea84508cdeeb280ff0fb9e9b2dffa8dbc37e66
shipit-source-id: 92ea84508cdeeb280ff0fb9e9b2dffa8dbc37e66
Summary: This property is now in the bridge.
Reviewed By: tadeuzagallo
Differential Revision: D2985894
fb-gh-sync-id: 38821e0c5998bc96fc8f6164fbbc82c721f5c5ad
shipit-source-id: 38821e0c5998bc96fc8f6164fbbc82c721f5c5ad
Summary: This makes room for local development without touching OSS code.
Reviewed By: tadeuzagallo
Differential Revision: D2986122
fb-gh-sync-id: 2f23088a078b0f0fb4b74946490fd5b67b01c0ac
shipit-source-id: 2f23088a078b0f0fb4b74946490fd5b67b01c0ac
Summary:This adds a `takeSnapshot` method to UIManager that can be used to capture screenshots as an image.
The takeSnapshot method accepts either 'screen', 'window' or a view ref as an argument.
You can also specify the size, format and quality of the captured image.
I've added an example of capturing a screenshot at UIExplorer > Snapshot / Screenshot.
I've also added an example of sharing a screenshot to the UIExplorer > ActionSheetIOS demo.
Reviewed By: javache
Differential Revision: D2958351
fb-gh-sync-id: d2eb93fea3297ec5aaa312854dd6add724a7f4f8
shipit-source-id: d2eb93fea3297ec5aaa312854dd6add724a7f4f8
Summary:
This commit adds the delegate hooks so that local notifications get
passed onto the JS and adds a new event listener type for local
notifications.
Also add functions to clear local notifications
Closes https://github.com/facebook/react-native/pull/2084
Reviewed By: svcscm
Differential Revision: D2908096
Pulled By: nicklockwood
fb-gh-sync-id: 759d299ea35abea177e72934076297d666d3ea20
shipit-source-id: 759d299ea35abea177e72934076297d666d3ea20
Summary:
public
Lazy export of module constants required a sync dispatch to the main thread, which was deadlocking in some of our projects.
This moves the constants export to the initial bridge init, which may slightly increase initial startup time, but avoids the deadlock.
Reviewed By: javache
Differential Revision: D2911295
fb-gh-sync-id: 0d14a629ac4fc7ee21acd293c09595c18232659b
shipit-source-id: 0d14a629ac4fc7ee21acd293c09595c18232659b
Summary:
public
Expose JS hooks to create flow events in systrace (the nice arrows to show async work flow) +
add support to the showing all the work enqueued from the JS thread as added in D2743733
Depends on D2743733
Reviewed By: jspahrsummers
Differential Revision: D2815293
fb-gh-sync-id: 4278f61a67a6e78cf2704bacce34b1389328c6df
Summary:
This is a final diff in the stack, which makes us not send a bazillion events to js after it's been busy while an user dragged his finger on a screen (resulting in ~two events per frame).
I made "touchMove" event to be coalescable, which makes us not send anything while dragging (since this makes both scroll events and touch move events coalesced and not being send until either next js frame or the next different touch event occurs).
This change is far from perfect. The event name is a hard coded string and the coalescing works with some (reasonable) assumptions on internal structure of these touch events. Which may or may not be really true. It would be great if someone could comment on these.
I'm thinking about making the touches more strongly typed. Any thoughts on this?
public
___
//This diff is part of a larger stack. For high level overview what's going on jump to D2884593.//
Reviewed By: nicklockwood
Differential Revision: D2884595
fb-gh-sync-id: f3c2f13430679e2bf52e0c7a3689650b3acae42f
Summary:
This diff finally makes touch events to be emitted to js from the same object as scroll events. Thanks to changes in previous diffs this means the js will now process them in the right order.
This diff on its own would cause us to send events to js on every frame while dragging a finger on the screen. This is something we tried to avoid with event coalescing in the past, and gets fixed in the following diff D2884595.
public
___
**This diff is part of a larger stack. This is a high level overview about what’s going on here.**
This stack of diffs fixes an issue where scroll events and touch events wouldn’t be processed in the correct order on js side.
Current state of world:
* touch events are send to js immediately when they happen (this makes js respond to touches as soon as possible)
* scroll events are buffered, coalesced and send at the beginning of each js frame (coalescing helps in a case where js is busy processing for several native frames and would get all scroll event for that period afterwards)
How did I change this?
1. I’ve made touch events go through the same class every other event (scroll events included) go, RCTEventDispatcher. This gives us a single place to handle all events.
2. I’ve changed RCTEventDispatcher to flush all buffered events every time it gets a touch event before dispatching the touch. This fixes the original ordering issue.
3. I’ve made “touchMove” behave the same way as scroll events do - they are buffered and coalesced. Since “touchMove” events are fired as often as scroll events (while you drag your finger around), doing only 2. would bring back the issue buffering was fixing.
All of this together effectively still keeps the order of events right, avoids overloading js in the important case we care about. The only downside is an increased latency for “touchMove” events, since they are to longer send to js immediately.
(Even better solution would be changing the native->js event passing system to be pull based instead of push based. That way js would always request touches that has happened since the last time it has asked, which would make it get them as soon as it’s possible to process them and native could do coalescing at that point.
However this change has a much bigger scope, so I’m going with this stack of diffs for now.)
Reviewed By: nicklockwood
Differential Revision: D2884593
fb-gh-sync-id: 749a4dc6256f93fde0d8733687394b080ddd4484
Summary:
This diff adds an implementation of `RCTEvent` protocol which represents touch events.
It's basically a copy of this code: c14cc123d5/React/Base/RCTTouchHandler.m (L194-L196)
which is replaced using `RCTTouchEvent` in the next diff (D2884593).
public
___
//This diff is part of a larger stack. For high level overview what's going on jump to D2884593.//
Reviewed By: nicklockwood
Differential Revision: D2884592
fb-gh-sync-id: e35addcf15a7012f89644200a08f5856c7f57299
Summary:
Currently only scroll events are send through `sendEvent`, and all of them are can be coalesced. In future (further in the stack) touch events will go through there as well, but they won't support coalescing.
In order to ensure js processes touch and scroll events in the same order as they were created, we will flush the coalesced events when we encounter one that cannot be coalesced.
public
___
//This diff is part of a larger stack. For high level overview what's going on jump to D2884593.//
Reviewed By: nicklockwood
Differential Revision: D2884591
fb-gh-sync-id: a3d0e916843265ec57f16aad2f016a79764dcce8
Summary:
I want to use the `RCTEvent` protocol for touch events as well. That's why I'm removing not very well defined `body` property and replacing it with `arguments` method, which will return an array that will be passed directly to the js call.
I think this makes sense because there is no unified arguments format for all events and and the called js method (`moduleDotMethod`) is already event specific.
This way touch events and scroll events can result in calling a completely different js function with a completely different arguments (what they indeed currently do).
public
___
//This diff is part of a larger stack. For high level overview what's going on jump to D2884593.//
Reviewed By: nicklockwood
Differential Revision: D2884590
fb-gh-sync-id: 2c1885c3414e255d8572c0fbbbfe62a23d94dd06
Summary:
This property was never used, so I'm removing it.
public
___
//This diff is part of a larger stack. For high level overview what's going on jump to D2884593.//
Reviewed By: javache
Differential Revision: D2884587
fb-gh-sync-id: acd5e576cd13a02e77225f3b308232f8331d3b61
Summary:
`RCTBaseEvent` was never used. This diff removes it.
public
___
//This diff is part of a larger stack. For high level overview what's going on jump to D2884593.//
Reviewed By: javache
Differential Revision: D2884585
fb-gh-sync-id: 66a6afcda3b5baec7f768682da215570f6d33bb1
Summary:
public
https://github.com/facebook/react-native/pull/5494 added a new `source` property to WebView on Android that provides a better API, as well as allowing for request headers to be set.
This diff ports that functionality over to iOS, so we can have a consistent API cross-platform.
I've also extended the API to include `method` (GET or POST) and `body` when setting the WebView content with a URI, and `baseUrl` when setting static HTML.
Reviewed By: javache
Differential Revision: D2884643
fb-gh-sync-id: 83f24494bdbb4e1408aa8f3b7428fee33888ae3a
Summary:
public
This diff improves the implementation of 3D touch by adding a `forceTouchAvailable` constant to View that can be used to check if the feature is supported.
I've also added an example of how you can use the `force` property of the touch event to measure touch pressure in React Native.
Reviewed By: vjeux
Differential Revision: D2864926
fb-gh-sync-id: 754c54989212ce4e4863716ceaba59673f0bb29d
Summary:
This adds the first of the three 3dTouch API types, that found on the touch event.
It adds the `force` prop to touch events when running on iOS 9 devices:
Closes https://github.com/facebook/react-native/pull/3055
Reviewed By: svcscm
Differential Revision: D2860540
Pulled By: nicklockwood
fb-gh-sync-id: 95a3eb433837c844f755b3ed4a3dfcb28452c284
Summary:
public
NSJSONSerialization throws an exception when it encounters bad JSON data, including NaN values, which may not be a programming error.
This diff adds code to catch those exceptions and convert to an error. Also, if no error handling is in place, RCTJSONStringify will now display a redbox, and attempt to recover by sanitizing the JSON data and retrying.
Reviewed By: javache
Differential Revision: D2854778
fb-gh-sync-id: 18e6990af0d91083496d6a0b75c31a94ed9454a5
Summary:
public
This diff fixes a bug in RCTScreenScale() on iPhone6+. The issue was due to the fact that the iPhone6+'s virtual screen resolution of 414x736 points 3x resolution (1242x2208 pixels) does not match its actual screen resolution, which is 1080p (1080x1920 pixels).
I did not realize that `[UIScreen mainScreen].nativeBounds` reports the *actual* resolution, not the virtual resolution, and was dividing by the virtual scale (3.0) instead of the actual native scale factor (2.6).
This only affects iPhone6+, because for all other iOS devices, the virtual resolution matches the native resolution.
Reviewed By: milend
Differential Revision: D2854663
fb-gh-sync-id: bce8965a151e2f005a02a5f6b54f259d01b9ab12
Summary:
public
Standardises the image decoding logic for all image sources, meaning we get the benefits of efficient downscaling of images from all sources, not just ALAssets.
Reviewed By: javache
Differential Revision: D2647083
fb-gh-sync-id: e41456f838e4c6ab709b1c1523f651a86ff6e623
Summary:
This solves https://github.com/facebook/react-native/issues/5090. Since 5b4e873c68 we had better reporting for when calls from native to JS fail. When trying to load an invalid bundle, this would now cause a stackoverflow, since RCTFatal would schedule a JS call to log, which would RCTFatal, which would ...
By invalidating the jsExecutor immediately after loading fails, we prevent any more attempts to log. We can't invalidate the whole bridge at this point since we still need the redbox module to actually display the error.
public
Reviewed By: majak
Differential Revision: D2834251
fb-gh-sync-id: a3e2ad425e40560beae4d3eacb93f66ace5341bf
Summary:
public
Promises are coming. And as part of it, we are standardizing the error objects that will be returned. This puts the code in place on the Android side to always send the proper error format.
It will be an error object like this
{
code : "E_SOME_ERROR_CODE_DEFINED_BY_MODULE", // Meant to be machine parseable
message : "Human readable message",
nativeError : {} // Some representation of the underlying error (Exception or NSError) , still figuring out exactly, but hopefully something with stack info
}
Reviewed By: nicklockwood
Differential Revision: D2840128
fb-gh-sync-id: 174d620e2beb53e1fc14161a10fd0479218d98a6
Summary:
This caused issues for me when I tried to provide a native module on init that was also KVO'd (and dynamically subclassed)
On closer inspection, it also seems highly inconsistent to register these classes in DEBUG mode but have them fail silently in production. Reducing the difference between debug and release seems like a safer option.
public
Reviewed By: nicklockwood
Differential Revision: D2819838
fb-gh-sync-id: 79ab72b1152c89eae38c965ff7724aba59a00949
Summary:
public
Since we don't actually recreate our native modules every time (will fix in follow-up), we'd never update the reference after reloading the bridge, and all navigation would fail.
Reviewed By: majak
Differential Revision: D2811406
fb-gh-sync-id: 4f4fd73bbdecfe510e1e1554668b2354181f22a8
Summary:
public
Attempting to load an undefined URL via XMLHttpRequest produced a confusing error deep within the network layer. This diff improves the networking stack to catch such errors earlier, and also adds a helpful error in the JS layer.
Fixes https://github.com/facebook/react-native/issues/4558
Reviewed By: javache
Differential Revision: D2811080
fb-gh-sync-id: 1837427e1080a0308f2c4f9a8a42bce2e041fb48
Summary:
public
Fixed a potential deadlock issue if code attempted to access a module via [bridge moduleForName/Class:] while it was being initialized.
Reviewed By: lry
Differential Revision: D2807827
fb-gh-sync-id: 58cafe9b92c094dde632d17245fb9b342a0fe9e0
Summary:
public
By doing this we fix 2 problems:
1. We use the same url, both the first time the simulator starts with Hot Loading disabled (no `hot` attribute), and after HL has been enabled and then disabled ('hot=false'). By doing so, the packager will rebuild more than one bundle as file changes. We could have ignored this attribute on the packager but I'd rather not contaminate the server with it and instead make the clients send only 2 types of URLs.
2. The code on `RCTBatchedBridge.m` that decides whether or not to enable HMR does so by looking at presence of the query string parameter `hot`. If the parameter is present, even when it's false, it will try to enable HL, which is wrong.
Reviewed By: nicklockwood
Differential Revision: D2807512
fb-gh-sync-id: 728b680c2383c328d8967d34c10e7a6288e455ac
Summary:
public
Android implement ViewManager methods via a dispatch method on UIManager, whereas iOS implements them by exposing the methods on the view manager modules directly.
This diff polyfills Android's implementation on top of the iOS implementation, allowing the same JS API to be used for both.
Reviewed By: javache
Differential Revision: D2803020
fb-gh-sync-id: 0da0544e593dc936467d16ce957a77f7ca41355b
Summary:
public
Unfortunately, it turns out that NSURLComponents.queryItems only works on iOS 8 and above. This diff re-implements the RCTGetURLQueryParam and RCTURLByReplacingQueryParam functions using functionality available in iOS 7.
Reviewed By: javache
Differential Revision: D2803679
fb-gh-sync-id: 56f10bef4894d16197975b6023b7aa5ab106d8cb
Summary:
public
The logic inside RCTBatchedBridge contained some race conditions that would occasionally cause an error if modules were loaded in the wrong order. This improves that logic and makes it safer by adding a lock to prevent concurrency.
Reviewed By: jspahrsummers
Differential Revision: D2802930
fb-gh-sync-id: d1ad25fa578649363dcaac029cb24dc3a453ae67
Summary:
public
This exposes a proper API for adding synchronous callbacks to JS, as an optional feature of the executor.
This is based on nicklockwood's work in D2764492, but avoids refactoring bridge/executor interactions for the time being, since we agree on this API and can move the actual callsites around later.
Reviewed By: nicklockwood
Differential Revision: D2799506
fb-gh-sync-id: af209d9a0be927f3404205feb16e59745cc37aec
Summary:
public
Expose JS hooks to create flow events in systrace (the nice arrows to show async work flow) +
add support to the showing all the work enqueued from the JS thread as added in D2743733
Depends on D2743733
Reviewed By: jspahrsummers
Differential Revision: D2773664
fb-gh-sync-id: 4a8854b17b4741b882f5f2cc425e4237a5e4b3eb
Summary:
public
The implementation of the `methodQueue` lazy initializer in `RCTModuleData` could result in the queue being set twice, because calling `methodQueue` for a module that hasn't been instantiated would call `RCTModuleData.instance` to create the module, which itself calls `methodQueue`.
It's not clear if this was causing a bug, but it may be related to an occasional bug where the `RCTViewManager.methodQueue` returns nil.
Reviewed By: majak
Differential Revision: D2783320
fb-gh-sync-id: 9194da0fd7392f63825da1f5c450363dd300b635
Summary:
public
Until we support this fature on OSS, don't show the menu option.
Reviewed By: vjeux
Differential Revision: D2791198
fb-gh-sync-id: 11b66d467c1ab784bbf549b893d0a3abd69e2741
Summary:
public
Implement all the necessary glue code for several diffs submitted before to get Hot Loading work end to end:
- Simplify `HMRClient`: we don't need to make it stateful allowing to enable and disable it because both when we enable and disable the interface we need to reload the bundle.
- On the native side we introduced a singleton to process the bundle URL. This new class might alter the url to include the `hot` attribute. I'm not 100% sure this is the best way to implement this but we cannot use `CTLSettings` for this as it's are not available on oss and I didn't want to contaminate `RCTBridge` with something specific to hot loading. Also, we could potentially use this processor for other things in the future. Please let me know if you don't like this approach or you have a better idea :).
- Use this processor to alter the default bundle URL and request a `hot` bundle when hot loading is enabled. Also make sure to enable the HMR interface when the client activates it on the dev menu.
- Add packager `hot` option.
- Include gaeron's `react-transform` on Facebook's JS transformer.
The current implementation couples a bit React Native to this feature because `react-transform-hmr` is required on `InitializeJavaScriptAppEngine`. Ideally, the packager should accept an additional list of requires and include them on the bundle among all their dependencies. Note this is not the same as the option `runBeforeMainModule` as that one only adds a require to the provided module but doesn't include all the dependencies that module amy have that the entry point doesn't. I'll address this in a follow up task to enable asap hot loading (9536142)
I had to remove 2 `.babelrc` files from `react-proxy` and `react-deep-force-update`. There's an internal task for fixing the underlaying issue to avoid doing this horrible hack (t9515889).
Reviewed By: vjeux
Differential Revision: D2790806
fb-gh-sync-id: d4b78a2acfa071d6b3accc2e6716ef5611ad4fda
Summary:
Some custom fonts don't return a UIFontWeightTrait that is representative of their actual weight. For example, "AktivGrotesk-Light" and "AktivGrotesk-Medium" both return UIFontWeightTrait 0. While this is of course an issue with the font files themselves, licensing issues can make it difficult to modify them directly. When using these fonts, specifying weights in JS has no effect. I propose that if no weight information is available, we inspect the name of the font for weighting.
Closes https://github.com/facebook/react-native/pull/2113
Reviewed By: svcscm
Differential Revision: D2783383
Pulled By: nicklockwood
fb-gh-sync-id: 2a9caf99b6af74b7013ecc85417322b56c2dea20
Summary:
this is a recent regression because the error appeared in my app (from 0.16 to 0.17).
```
<Image source={{ uri: null }} />
```
will make an error:
```
[RCTConvert.m:55] Error setting property 'source' of RCTImageView with tag #317: JSON value '<null>' of type NSNull cannot be converted to NSString
```
The solution attached is to check that uri is a NSString and return nil if not (the same way nil is returned in case of invalid url).
Closes https://github.com/facebook/react-native/pull/4902
Reviewed By: svcscm
Differential Revision: D2779789
Pulled By: nicklockwood
fb-gh-sync-id: cfe429ec5e53e63b7b368c06e693424ca8aaa11e
Summary:
public
Rename the executor to so it actually says something about the implementation.
Reviewed By: jspahrsummers, nicklockwood
Differential Revision: D2759688
fb-gh-sync-id: 5b1ac447e75109fbbc2ee71c804710d9926785aa
Summary:
public
Remove some of the manual markers from the bridge since they will already be added dinamically.
Reviewed By: jspahrsummers
Differential Revision: D2761748
fb-gh-sync-id: 0c726373f9105258feb8230d30453559ed1e6a65
Summary:
public
Thanks to the new lazy initialization system for modules, `RCTDidCreateNativeModules` no longer does what the name implies.
Previously, `RCTDidCreateNativeModules` was fired after all native modules had been initialized. Now, it simply fires each time the bridge is reloaded. Modules are created on demand when they are needed, so most of the assumptions about when `RCTDidCreateNativeModules` will fire are now incorrect.
This diff deprecates `RCTDidCreateNativeModules`, and adds a new notification, `RCTDidInitializeModuleNotification`, which fires each time a module a new module is instantiated.
If you need to access a module at any time you can just call `-[bridge moduleForClass:]` and the module will be instantiated on demand. If you want to access a module *only* after it has already been instantiated, you can use the `RCTDidInitializeModuleNotification` notification.
Reviewed By: tadeuzagallo
Differential Revision: D2755036
fb-gh-sync-id: 25bab6d5eb6fcd35d43125ac45908035eea01487
Summary:
public
A lot of the core modules have to use private methods in the bridge, specially
since the `RCTBatchedBridge` interface is never exposed. That was leading to a
lot of different private bridge categories spread across different modules,
which makes harder to identify which modules are affected by private API changes.
Replace all the categories with a single private header.
Reviewed By: nicklockwood
Differential Revision: D2757564
fb-gh-sync-id: 793158b9082d542b74a6094ed0db4d5dc3a88f78
Summary:
A component can be backed by native "node" that can change its internal state, which would result in a new UI after the next layout. Since js has no way of knowing that this has happened it wouldn't trigger a layout if nothing in js world has changed. Therefore we need a way how to trigger layout from native code.
This diff does it by adding methods `layoutIfNeeded` on the uimanager and `isBatchActive` on the bridge.
When `layoutIfNeeded` is called it checks whether a batch is in progress. If it is we do nothing, since at it's end layout happens. If a batch is not in progress we immidiately do layout.
I went with the easiest way how to implement this - `isBatchActive` is a public method on the bridge. It's not ideal, but consistent with other methods for modules.
public
Reviewed By: jspahrsummers, nicklockwood
Differential Revision: D2748896
fb-gh-sync-id: f3664c4af980d40a463b538e069b26c9ebad6300
Summary:
public
This diff replaces the RegEx module method parser with a handwritten recursive descent parser that's faster and easier to maintain.
The new parser is ~8 times faster when tested on the UIManager.managerChildren() method, and uses ~1/10 as much RAM.
The new parser also supports lightweight generics, and is more tolerant of white space.
(This means that you now can – and should – use types like `NSArray<NSString *> *` for your exported properties and method arguments, instead of `NSStringArray`).
Reviewed By: jspahrsummers
Differential Revision: D2736636
fb-gh-sync-id: f6a11431935fa8acc8ac36f3471032ec9a1c8490
Summary:
public
Use the actual timestamp provided through `CADisplayLink` instead of the time
the handler is called.
Reviewed By: jspahrsummers
Differential Revision: D2739121
fb-gh-sync-id: 1da28190bb25351dc3dd94efaff21d49279a570f
Summary:
The JavaScript ecosystem doesn't have the notion of a built-in native module loader. Even Node is decoupled from its module loader. The module loader system is just JS that runs on top of the global `process` object which has all the built-in goodies.
Additionally there is no such thing as a global require. That is something unique to our providesModule system. In other module systems such as node, every require is contextual. Even registered npm names are localized by version.
The only global namespace that is accessible to the host environment is the global object. Normally module systems attaches itself onto the hooks provided by the host environment on the global object.
Currently, we have two forms of dispatch that reaches directly into the module system. executeJSCall which reaches directly into require. Everything now calls through the BatchedBridge module (except one RCTLog edge case that I will fix). I propose that the executors calls directly onto `BatchedBridge` through an instance on the global so that everything is guaranteed to go through it. It becomes the main communication hub.
I also propose that we drop the dynamic requires inside of MessageQueue/BatchBridge and instead have the modules register themselves with the bridge.
executeJSCall was originally modeled after the XHP equivalent. The XHP equivalent was designed that way because the act of doing the call was the thing that defined a dependency on the module from the page. However, that is not how React Native works.
The JS side is driving the dependencies by virtue of requiring new modules and frameworks and the existence of dependencies is driven by the JS side, so this design doesn't make as much sense.
The main driver for this is to be able to introduce a new module system like Prepack's module system. However, it also unlocks the possibility to do dead module elimination even in our current module system. It is currently not possible because we don't know which module might be called from native.
Since the module system now becomes decoupled we could publish all our providesModule modules as npm/CommonJS modules using a rewrite script. That's what React Core does.
That way people could use any CommonJS bundler such as Webpack, Closure Compiler, Rollup or some new innovation to create a JS bundle.
This diff expands the executeJSCalls to the BatchedBridge's three individual pieces to make them first class instead of being dynamic. This removes one layer of abstraction. Hopefully we can also remove more of the things that register themselves with the BatchedBridge (various EventEmitters) and instead have everything go through the public protocol. ReactMethod/RCT_EXPORT_METHOD.
public
Reviewed By: vjeux
Differential Revision: D2717535
fb-gh-sync-id: 70114f05483124f5ac5c4570422bb91a60a727f6
Summary:
public
The +[RCTConvert UIImage:] function, while convenient, is inherently limited by being synchronous, which means that it cannot be used to load remote images, and may not be efficient for local images either. It's also unable to access the bridge, which means that it cannot take advantage of the modular image-loading pipeline.
This diff introduces a new RCTImageSource class which can be used to pass image source objects over the bridge and defer loading until later.
I've also added automatic application of the `resolveAssetSource()` function based on prop type, and fixed up the image logic in NavigatorIOS and TabBarIOS.
Reviewed By: javache
Differential Revision: D2631541
fb-gh-sync-id: 6604635e8bb5394425102487f1ee7cd729321877
Summary:
public
Looping through every `RCTModuleData` to check whether the module responds to `-batchDidComplete` or `-partialBatchDidFlush` is unnecessarily expensive. We can cache the answer at the time that the module instance is actually initialized.
Reviewed By: tadeuzagallo
Differential Revision: D2717594
fb-gh-sync-id: 274a59ec2d6014ce18c93404ce6b9940c1dc9c32
Summary:
public
Currently, we wait to invoke `-flushUIBlocks` until the JavaScript batch to native has completed. This means we may be waiting an unnecessarily long time to perform view hierarchy changes and prop changes.
By instead invoking this after each chunk of enqueued UI blocks, we can perform some updates more eagerly, increasing our utilization of the main thread while splitting up the amount of time we spend running upon it.
This shouldn't affect layout, which is still tied to `-batchDidComplete`, so any visual inconsistencies should be limited to prop changes, which seems acceptable for the dramatic improvement in performance.
Reviewed By: javache
Differential Revision: D2658552
fb-gh-sync-id: 6d4560e21d7da1b02d2f30d1860d60735f11c4b5
Adam Ernst
Skotch Vail
Alexey Lang
Nathan Azaria
Michael McKinley
Marc Horowitz
Siqi Liu
Pieter De Baets
Yinan Na
Sokovikov
Fabian Eichinger
Alex Kotliarskyi
Nick Lockwood
Adam Comella
Li Jie
Anoop Chaurasiya
Martin Kralik
Mike Grabowski
Ben Roth
David Aurelio
Oleg Lokhvitsky
Justin Zeus
Tadeu Zagallo
Michelle Hwang
Martín Bigio
aleclarsoniv
Walter Luh
Adam Miskiewicz
slycoder
Christopher Chedeau
Matt Apperson
Dave Miller
Justin Spahr-Summers
Fada Chen
Mike Armstrong
Ryan Gomba
Gaëtan Renaudeau
Sebastian Markbage
