Summary:
On certain devices (in my case, any iPad Pro model), listening to `DeviceEventEmitter.didUpdateDimensions` would call back *before* the interface change takes places (i.e. calling `Dimensions.get()` in this callback would return wrong values). Turns out that we were listening for the wrong native event.
Edit to add: now using `[RCTSharedApplication() statusBarOrientation]` to get the current orientation. Not yet sure why, but the `userInfo` provided by the notification was returning the wrong orientation *only* on the first time you rotate the device.
This fixes the open issue: https://github.com/facebook/react-native/issues/7340
Closes https://github.com/facebook/react-native/pull/11350
Differential Revision: D4348186
Pulled By: javache
fbshipit-source-id: cb2cfb9cccfc459ad4b46a5af2bec4c973132ae8
Summary: No need to have two files; merge it into one and give it an appropriate name.
Reviewed By: javache
Differential Revision: D4296716
fbshipit-source-id: 904d13c23bb8d403b8efcb60f9a4aa5df5b08972
Summary: This singleton was unnecessary and can be implemented with a single `static` in `RCTDevMenu`. In another diff, I will rename `RCTWebSocketManager.{h,m}` to reflect the only class that remains.
Reviewed By: javache
Differential Revision: D4296551
fbshipit-source-id: 653971dfb31de5b0a161b531eed82a067f536ce3
Summary:
To make React Native play nicely with our internal build infrastructure we need to properly namespace all of our header includes.
Where previously you could do `#import "RCTBridge.h"`, you must now write this as `#import <React/RCTBridge.h>`. If your xcode project still has a custom header include path, both variants will likely continue to work, but for new projects, we're defaulting the header include path to `$(BUILT_PRODUCTS_DIR)/usr/local/include`, where the React and CSSLayout targets will copy a subset of headers too. To make Xcode copy headers phase work properly, you may need to add React as an explicit dependency to your app's scheme and disable "parallelize build".
Reviewed By: mmmulani
Differential Revision: D4213120
fbshipit-source-id: 84a32a4b250c27699e6795f43584f13d594a9a82
Summary: Correct header import paths, update podspec so we point at the copy in ReactCommon (and can eventually remove the copy under React)
Reviewed By: astreet
Differential Revision: D4204501
fbshipit-source-id: e979a010092f025b2cdc289e1e5f22fc7b65a8d1
Summary:
Corresponding Android PR: https://github.com/facebook/react-native/pull/11008
This gives apps the ability to find out the current scaling factor for fonts on the device. An event was also added so that apps can find out when this value changes.
**Test plan (required)**
Verified that the getter and the event work properly in a test app. Also, this change is used in my team's app.
Adam Comella
Microsoft Corp.
Closes https://github.com/facebook/react-native/pull/11010
Differential Revision: D4207620
Pulled By: ericvicenti
fbshipit-source-id: b3f6f4a412557ba97e1f5fb63446c7ff9a2ff753
Summary:
The various RCTLog macros (`RCTLogWarn`, `RCTLogError`, etc..) are based on the `_RCTLog` macro, which, in its expanded form, has a semi-colon in DEV mode (i.e., when `RCTLOG_ENABLED` is set to 1), and doesn't have one when `RCTLOG_ENABLED` is set to 0.
This could lead to a situation where code will compile in DEV but will fail to compile for prod.
Fixing this by removing the semicolon from the DEV version (as should).
Reviewed By: javache
Differential Revision: D4189133
fbshipit-source-id: 54cb4e2c96d1e48d9df88464aa58b13af432c2bd
Summary:
1. Using weak container to hold the currently opened alerts.
2. Using weak reference to alertController in action handler block.
3. BTW, remove the unused vars: _alertCallbacks, _alertButtonKeys.
Test plan (required)
```
- (void)invalidate
{
for (UIAlertController *alertController in _alertControllers) {
[alertController.presentingViewController dismissViewControllerAnimated:YES completion:nil];
}
}
```
Since we use weak container, _alertControllers should only contains the currently opened alerts.
I test this way: Put a breakpoint in invalidate, open the UIExplorer play with the 'Alert' & 'AlertIOS' examples, then fire a reload and see if _alertControllers contains the expected values.
Closes https://github.com/facebook/react-native/pull/10407
Differential Revision: D4078649
Pulled By: lacker
fbshipit-source-id: 8509e7e7142379a81d5b28c9067c085bad8bb5cb
Summary:
- Consolidate common code in iOS and tvOS test scripts
- Start the packager before starting tests, to improve reliability
- Increase timeout value in RCTTestRunner.m
Closes https://github.com/facebook/react-native/pull/10378
Differential Revision: D4028364
Pulled By: bestander
fbshipit-source-id: 24c2124a1c62643a02f0668b60a67b971e08d1a3
Summary:
This fixes the following problem on iPad (happens when trying to show the devmenu ActionSheet):
> Terminating app due to uncaught exception 'NSGenericException', reason: 'Your application has presented a UIAlertController () of style UIAlertControllerStyleActionSheet. The modalPresentationStyle of a UIAlertController with this style is UIModalPresentationPopover. You must provide location information for this popover through the alert controller's popoverPresentationController. You must provide either a sourceView and sourceRect or a barButtonItem. If this information is not known when you present the alert controller, you may provide it in the UIPopoverPresentationControllerDelegate method -prepareForPopoverPresentation.'
I see 2 ways of fixing the issue: falling back to Alert (always displayed in the center) or adding a fake view somewhere on the screen to display the ActionSheet.
Reviewed By: mmmulani
Differential Revision: D3989672
fbshipit-source-id: 59fabc50ec1aac3ae6ddd7ecf4d8e8e5b9586dba
Summary:
* Motivation *
Second PR for Apple TV support.
* Test plan *
Apple TV tests have been added to scripts/objc-test.sh
Closes https://github.com/facebook/react-native/pull/10227
Differential Revision: D3974064
Pulled By: javache
fbshipit-source-id: 36dffb4517efa489e40fa713a30655d1d76ef646
Summary:
Android (starting from API 23) supports "light status bar", thus it is possible to extend StatusBar and make `barStyle` property work not only for iOS, but also for Android.
This PR introduces one more `barStyle` option `dark-content` in addition to two existing ones (`default` and `light-content`).
Why there are 3 options instead of 2?
Two simple reasons:
1) to make all existing applications fully compatible with these changes;
2) the default status bar on Android is dark with white text and icons, while on iOS it is light with black text and icons on it. Thus the `default` option means something like "I don't really care, just apply the default color for this platform", while two other options (`light-content` and `dark-content`) allow to accurately specify the required result.
Closes https://github.com/facebook/react-native/pull/10185
Differential Revision: D3952346
fbshipit-source-id: 999a67614abff52321fbeb06298ebf1946c3f1d1
Summary:
First commit for Apple TV support: changes to existing Objective-C code so that it will compile correctly for tvOS.
Closes https://github.com/facebook/react-native/pull/9649
Differential Revision: D3916021
Pulled By: javache
fbshipit-source-id: 34acc9daf3efff835ffe38c43ba5d4098a02c830
Summary:
Explain the **motivation** for making this change. What existing problem does the pull request solve?
- Being able to call these from JS is really useful in envs where action sheets are not available (eg: App Extensions). I made the functions act as explicit toggles, this way it's easy to set the wanted behavior.
**Test plan (required)**
- I tested the functions manually.
Closes https://github.com/facebook/react-native/pull/9242
Differential Revision: D3749568
fbshipit-source-id: 2cea1d609dc792aec73d4bcf1eae07575725b4b7
Summary:
At the moment, posting RCTReloadNotification in any circumstance causes all RCTBridge instances to reload. This change scopes the notification to the bridge for which it was intended.
Closes https://github.com/facebook/react-native/pull/8762
Differential Revision: D3831914
fbshipit-source-id: ff29574f574ecd1a403057ddd0458dea38f0136e
Summary:
Include CSSLayout headers in the same way as other project headers, ie `#import <CSSLayout/CSSLayout.h>` becomes `#import "CSSLayout.h"`. CSSLayout is not a framework or system dependency, so shouldn't (AFAIK) be included with angle brackets. Doing so breaks framework builds, such as when RN is used as a pod in a swift project.
In combination with https://github.com/facebook/css-layout/pull/217 this fixes https://github.com/facebook/react-native/issues/9014 (specifically swift cocoapods projects). There is then no need for a separate CSSLayout pod subspec.
Tests run on the RN project in isolation (with changes inside `CSSLayout` itself also applied) and against a dummy swift project with RN included as a pod.
NB: This effectively reverts https://github.com/facebook/react-native/pull/9015 and may break non-swift cocoapods projects unless https://github.com/facebook/css-layout/pull/217 is merged and synced first.
Update: As discussed with alloy and emilsjolander, wrap these imports in a preprocess
Closes https://github.com/facebook/react-native/pull/9544
Differential Revision: D3821791
Pulled By: javache
fbshipit-source-id: d27ac8be9ce560d03479b43d3db740cd196c24da
Summary: added API to in UIManager to find the rootTag/View of any reactTag based on its layout (shadow views) hierarchy (not to be used by JS)
Reviewed By: javache
Differential Revision: D3750410
fbshipit-source-id: 68611e39930d53ece478f25245ddc7f7838daaa6
Summary:
1. Provide forceRTL function for developer to test RTL layout in LTR language bundle in I18nUtil and expose it in I18nManager.
2. Rename `allowRTL` and `setAllowRTL` functions
Reviewed By: fkgozali
Differential Revision: D3663693
fbshipit-source-id: 3db13a44c069ae73d1728c211306422db5dd8122
Summary:
When call `[RCTDevMenu invalidate]`, it will cancel updateTask. But in fact, after the `[updateTask cancel]`, the updateTask's completionHandler will call `checkForUpdates` again, so it will create a new updateTask.
Closes https://github.com/facebook/react-native/pull/6165
Differential Revision: D3669576
Pulled By: javache
fbshipit-source-id: 443924b7f4be1716797fc5690e90d962cf31b923
Summary:
Sometimes is handy to check if a React node is a descendant of another node or not. For instance, I want to check if the focused `TextInput` is descendant of an specific `ScrollView`:
```js
const currentlyFocusedField = TextInput.State.currentlyFocusedField()
UIManager.viewIsAncestorOf(
currentlyFocusedField,
this.getInnerViewNode(),
(isAncestor) => {
if (isAncestor) {
console.log('The focused field is a descendant of this ScrollView!')
}
}
)
```
This function uses the same strategy as the `measureLayout` method to check if one node is an ancestor of other node. As the `measureLayout` method, this is performed outside the main thread.
By now I've only implemented the iOS version and its tests, but if this function is going to be merged I'll implement the Android version too. I have objc experience but no Java or Android, so I prefer to validate this functionality before jumping into developing the Android part.
Closes https://github.com/facebook/react-native/pull/7876
Differential Revision: D3662045
Pulled By: javache
fbshipit-source-id: b9668e8ea94fd01db76651f16243926cf9c2566f
Summary:
As per javache comments in #8734.
Also removes now useless feature detection check.
**Test plan**
Tested that rIC still works in UIExplorer example.
Closes https://github.com/facebook/react-native/pull/8795
Differential Revision: D3572566
Pulled By: javache
fbshipit-source-id: 261d13d8b03898313f8b4184d634c70f81a61b62
Summary:
iOS follow up to #8569. This currently depends on the Android PR since it contains the JS implementation, only review the last commit. Just putting this out here for visibility, don't merge this before the Android PR.
**Test plan**
Tested by running a background task that burns all remaining idle time (see UIExplorer example).
Tested that native only calls into JS when there are pending idle callbacks.
Tested that timers are executed before idle callback.
Closes https://github.com/facebook/react-native/pull/8734
Differential Revision: D3560818
fbshipit-source-id: a28d3092377a7fd4331647148d40fe69e4198c7e
Summary:
Attempt to fix#7919.
Currently, if the app is launched into the background and you read `AppState.currentState` too soon, you will see the value `'active'` instead of `'background'`. This is because the default value of `AppState.currentState` is hardcoded to be `'active'` and it is initialized with the actual value asynchronously.
This attempts to fix the bug by having the `RCTAppState` module provide the initial state as a module constant.
As noted in #7919, it looks like this fix was already tried and reverted with 0fb3d8de83. zjj010104, hedgerwang, nicklockwood -- can you explain why? I would very much like to get this bug fixed. Nobody has followed up on the issue I filed so I decided to just go ahead and make a PR with my best guess at a fix.
**Test plan (required)**
Built a small app as described in the repro steps for #7919 and verified that, when the app is launched into the background, `init currentState: background` is printed. Also verified that `i
Closes https://github.com/facebook/react-native/pull/8058
Differential Revision: D3554619
fbshipit-source-id: 5d950b85e335765552bbd3cf6ed91534062e35a1
Summary:
By default we run the the JS display link, even if there are no modules listening. Given that most listeners will be lazily constructed, let's make it paused by default.
Since RCTTiming almost never unpauses due to some long-lived timers, implement a sleep timer that pauses the displaylink but uses an NSTimer to wake up in time.
Reviewed By: mhorowitz
Differential Revision: D3235044
fbshipit-source-id: 4a340fea552ada1bd8bc0d83b596a7df6f992387
Summary:
Currently React Native codebase treats JS stack traces as array of dictionaries.
This diff switches the Red Box to use new `RCTJSStackFrame` for internal data representation, while keeping the exposed API unchanged. The next step would be to replace the rest of manual parsing and usage of dictionaries.
The new class has ability to parse the stack from raw strings or dictionaries.
Depends on D3429031
Reviewed By: javache
Differential Revision: D3473199
fbshipit-source-id: 90d2a4f5e8e054b75c99905f35c2ee54927bb311
Summary:
Delete the bridge functions(isRTL, allowRTL()) in internal module and move to OSS.
Create bridge for RCTI18nUtil
Reviewed By: fkgozali
Differential Revision: D3519224
fbshipit-source-id: 3853edcfcc78777d957874448117de72ae0700b5
Summary: Rename the forceRTL to allowRTL so that make it much clear to read. And change a typo.
Reviewed By: fkgozali
Differential Revision: D3489235
fbshipit-source-id: b9803dfbcda2f764b7e752c9810cfc7a0b9fe39b
Summary: Provide function that could read the language currently used in the app, so the isRTL is using the app current using language to set isRTL.
Reviewed By: fkgozali
Differential Revision: D3480654
fbshipit-source-id: dea3ef4769296f594f7f32da2961b4fec1b99a7a
Summary: Create isDeviceLanguageRTL function to connect the OS language with isRTL. Now even if a new app could support RTL language, without setting forceRTL at JS side it won't directly change into RTL layout.
Reviewed By: fkgozali
Differential Revision: D3473109
fbshipit-source-id: ac1410c910e980d44750bb88cad7615febb9e076
Summary: Create a module for React Native to get IsRTL information and set ForceRTL function.
Reviewed By: fkgozali
Differential Revision: D3446871
fbshipit-source-id: 736edf138a89d222818071370ac49dc54bda63b7
Summary:
Fix a bug that happens when views are added and removed in the same manageChildren block with a delete animation. What happens is that the inserted view is not inserted at the proper index if the deleted view index is smaller than the inserted one. This is because the view is not immediately removed from the subviews array so we need to offset the insert index for each view that is going to be deleted with an animation and is before the inserted view.
To do this I separated `_removeChildren` into 2 different functions, one for animated delete and one for normal delete. The animated one returns an array of `RCTComponent` that are going to be animated. We can then use this array to offset the insert index.
**Test plan (required)**
Tested that this fixed the bug in an app where I noticed it, also tested the UIExplorer example to make sure LayoutAnimations still worked properly.
Closes https://github.com/facebook/react-native/pull/7942
Differential Revision: D3417194
Pulled By: bestander
fbshipit-source-id: 9145a783e520c6718dd023a1e006646acb09cb7c
Summary:
Fix a bug that happens when views are added and removed in the same manageChildren block with a delete animation. What happens is that the inserted view is not inserted at the proper index if the deleted view index is smaller than the inserted one. This is because the view is not immediately removed from the subviews array so we need to offset the insert index for each view that is going to be deleted with an animation and is before the inserted view.
To do this I separated `_removeChildren` into 2 different functions, one for animated delete and one for normal delete. The animated one returns an array of `RCTComponent` that are going to be animated. We can then use this array to offset the insert index.
**Test plan (required)**
Tested that this fixed the bug in an app where I noticed it, also tested the UIExplorer example to make sure LayoutAnimations still worked properly.
Closes https://github.com/facebook/react-native/pull/7942
Differential Revision: D3417194
Pulled By: nicklockwood
fbshipit-source-id: 790f4ac15a8552323b359e6466cecfa80418c63c
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 implement the CSS z-index for React Native iOS views. We've had numerous pull request for this feature, but they've all attempted to use the `layer.zPosition` property, which is problematic for two reasons:
1. zPosition only affects rendering order, not event processing order. Views with a higher zPosition will appear in front of others in the hierarchy, but won't be the first to receive touch events, and may be blocked by views that are visually behind them.
2. when using a perspective transform matrix, views with a nonzero zPosition will be rendered in a different position due to parallax, which probably isn't desirable.
See https://github.com/facebook/react-native/pull/7825 for further discussion of this problem.
So instead of using `layer.zPosition`, I've implemented this by actually adjusting the order of the subviews within their parent based on the zIndex. This can't be done on the JS side because it would affect layout, which is order-dependent, so I'm doing it inside the view itself.
It works as follows:
1. The `reactSubviews` array is set, whose order matches the order of the JS components and shadowView components, as specified by the UIManager.
2. `didUpdateReactSubviews` is called, which in turn calls `sortedSubviews` (which lazily generates a sorted array of `reactSubviews` by zIndex) and inserts the result into the view.
3. If a subview is added or removed, or the zIndex of any subview is changed, the previous `sortedSubviews` array is cleared and `didUpdateReactSubviews` is called again.
To demonstrate it working, I've modified the UIExplorer example from https://github.com/facebook/react-native/pull/7825
Reviewed By: javache
Differential Revision: D3365717
fbshipit-source-id: b34aa8bfad577bce023f8af5414f9b974aafd8aa
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:
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: The view update cycle in UIManager was relying on a bunch of boolean values boxes as NSNumbers in parallel arrays. This diff packs those values into a struct, which is more efficient and easier to maintain.
Reviewed By: javache
Differential Revision: D3365346
fbshipit-source-id: d9cbf2865421f76772c1761b13992d40ec3675f0
Summary: The view update cycle in UIManager was relying on a bunch of boolean values boxes as NSNumbers in parallel arrays. This diff packs those values into a struct, which is more efficient and easier to maintain.
Reviewed By: javache
Differential Revision: D3253073
fbshipit-source-id: abbf2a910aeb536050c3a83513fb542962ce71a5
Summary: The view update cycle in UIManager was relying on a bunch of boolean values boxes as NSNumbers in parallel arrays. This diff packs those values into a struct, which is more efficient and easier to maintain.
Reviewed By: javache
Differential Revision: D3253073
fbshipit-source-id: 3e1520c27b88bc1b44ddffcaae3218d7681b2cd2
Summary: Updated networking and geolocation to use the new events system.
Reviewed By: bestander
Differential Revision: D3346129
fbshipit-source-id: 957716e54d7af8c4a6783f684098e92e92f19654
Summary: Updated networking and geolocation to use the new events system.
Reviewed By: javache
Differential Revision: D3339945
fbshipit-source-id: 01d307cf8a0aea3a404c87c6205132c42290abb1
Summary: Updated networking and geolocation to use the new events system.
Reviewed By: javache
Differential Revision: D3339945
fbshipit-source-id: f1332fb2aab8560e4783739e223c1f31d583cfcf
Summary: AppState now subclasses NativeEventEmitter instead of using global RCTDeviceEventEmitter.
Reviewed By: javache
Differential Revision: D3310488
fbshipit-source-id: f0116599223f4411307385c0dab683659d8d63b6
Summary:
Added a button to the iOS Red Box to enable copying of the error and stack trace to the clipboard to make it easier to paste the error and stack into bug reports or other text windows. Clicking the Copy button on the bottom of the RedBox screen or pressing Cmd-Option-C keyboard shortcut in the simulator will copy the full stack trace as text to the iOS pasteboard and when in the simulator you can then hit Command-C to get the text to the Mac's pasteboard for pasting in your favorite reporting/tracking app.
No tests for this change - I don't see any tests to extend for the RCTRedBoxWindow class. No impact on APIs or core React Native functionality. I validated it by running test React Native apps with red box errors and both hitting the copy button or using the command key shortcut in the emulator to get the text of the stack to the iOS pasteboard.
Closes https://github.com/facebook/react-native/pull/7557
Differential Revision: D3311743
Pulled By: javache
fbshipit-source-id: 76d1ac8ab93f40696c6a2369dae2245194db095a
Summary:
Previously, only Text and Image could be nested within Text. Now, any
view can be nested within Text. One restriction of this feature is
that developers must give inline views a width and a height via
the style prop.
Previously, inline Images were supported by using iOS's built-in support
for rendering images with an NSAttributedString via NSTextAttachment.
However, NSAttributedString doesn't support rendering arbitrary views.
This change adds support for nesting views within Text by creating one
NSTextAttachment per inline view. The NSTextAttachments act as placeholders.
They are set to be the size of the corresponding view. After the text is
laid out, we query the text system to find out where it has positioned each
NSTextAttachment. We then position the views to be at those locations.
This commit also contains a change in `RCTShadowText.m`
`_setParagraphStyleOnAttributedString:heightOfTallestSubview:`. It now only sets
`lineHeight`, `textAlign`, and `writingDirection` when they've actua
Closes https://github.com/facebook/react-native/pull/7304
Differential Revision: D3269333
Pulled By: nicklockwood
fbshipit-source-id: 2b59f1c5445a4012f9c29df9f10f5010060ea517
Summary: Having UI modules access the shadowQueue via UIManager.methodQueue is fragile and leads to race conditions in startup, sometimes resulting in an error where the methodQueue is set twice, or not at all.
Reviewed By: javache
Differential Revision: D3304890
fbshipit-source-id: 7198d28314dbec798877fcaaf17ae017d50157e9
Summary:
The `EmitterSubscription.remove()` method was previously calling `this.subscriber.removeSubscription(this)` directly, bypassing the mechanism in `NativeEventEmitter` that keeps track of the number of subscriptions.
This meant that native event modules (subclasses of `RCTEventEmitter`) would keep sending events even after all the listeners had been removed. This wasn't a huge overhead, since these modules are singletons and only send one message over the bridge per event, regardless of the number of listeners, but it's still undesirable.
This fixes the problem by routing the `EmitterSubscription.remove()` method through the `EventEmitter` so that `NativeEventEmitter` can apply the additional native calls.
I've also improved the architecture so that each `NativeEventEmitter` uses its own `EventEmitter`, but they currently all still share the same `EventSubscriptionVendor` so that legacy code which registers events via `RCTDeviceEventEmitter` still works.
Reviewed By: vjeux
Differential Revision: D3292361
fbshipit-source-id: d60e881d50351523d2112473703bea826641cdef
Summary:
Currently, `7 << 16` is used as the animation easing function for both the showing and hiding of the keyboard.
Instead, `7 << 16` should be used for showing the keyboard and `6 << 16` for hiding the keyboard.
For details, see: http://stackoverflow.com/questions/18870447/how-to-use-the-default-ios7-uianimation-curve/19439283#19439283
**Test plan (required)**
Testing animating the position of a view to coordinate with the keyboard hiding and showing and it looks good.
Adam Comella
Microsoft Corp.
Closes https://github.com/facebook/react-native/pull/7372
Differential Revision: D3300464
Pulled By: nicklockwood
fbshipit-source-id: 3fdc161f709de11deb7de511aad28767f5d80bd6
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
Mani Ghasemlou
Pieter De Baets
Adam Ernst
Emil Sjolander
Vojta Bartos
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Adam Comella
Grace Ku
Dan Caspi
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Alex Kotliarskyi
Alexander Pantyuhov
Marc Horowitz
Hugo Dozois
Ben Roth
Kevin Gozali
rh389
makee
Scott Wolchok
Mengjue Wang
wenzhao.yin
Brent Vatne
alvaromb
Wenjing Wang
David Goldman
Janic Duplessis
Skotch Vail
Konstantin Raev
Nick Lockwood
Nathan Azaria
Martin Konicek
Blair Vanderhoof
Mike Grabowski
Chris Evans
