Commit Graph

1972 Commits

Author SHA1 Message Date
Manman Ren ebbd4371c9 Mark ObjC methods that are called from React Native as dynamic.
Reviewed By: mmmulani

Differential Revision: D7087100

fbshipit-source-id: 18e5726e5b48e7b71fcaab19f6fe73be0cad6233
2018-02-26 12:24:17 -08:00
Ken Woo 3eee96ab86 Change React Native application layout check
Reviewed By: shergin

Differential Revision: D7076910

fbshipit-source-id: dc6df2dee886bbdf139d6e50192d621efad6d57e
2018-02-26 11:49:36 -08:00
siddhantsoni 16c9e5b715 Fix: Added scroll Bounds check in scrollToOffset method in RCTScrollView on iOS
Summary:
<!--
Thank you for sending the PR! We appreciate you spending the time to work on these changes.

Help us understand your motivation by explaining why you decided to make this change.

You can learn more about contributing to React Native here: http://facebook.github.io/react-native/docs/contributing.html

Happy contributing!

-->

The scrollToOffset method of RCTScrollView for iOS does not include bound check for the scroll offset provided to the method. This can cause the whole view to scroll out of screen if the offset provided is greater than the bounds of the View.
The same does not happen on Android, where the scroll halts once the last item of the scrollView is in the viewport.
I have added bounds check so the offset resets to the MaxOffset which makes sure the view does not scroll out of the viewport.

The issue can be observed in the following snack:
https://snack.expo.io/H1363Uo8f

![ezgif com-optimize 1](https://user-images.githubusercontent.com/16662518/36068270-2437ae88-0ef7-11e8-96dd-819b4ae0fd67.gif)

To test my changes I ran the code provided in the snack above with the react-native dependency pointing to my branch. As can be see in the video attached below, the scroll halts once it hits the end of the ScrollView even if the scroll offset provided is higher than the bounds of the ScrollView. It also does not scroll up for negative scroll offset.

![ezgif com-optimize](https://user-images.githubusercontent.com/16662518/36068130-9ae4f918-0ef3-11e8-8728-af7b2888bdb8.gif)

[IOS] [BUGFIX] [ScrollView] - Added bounds check to prevent ScrollView from scrolling to an offset which is out of bounds of the ScrollView for iOS.
Closes https://github.com/facebook/react-native/pull/17927

Differential Revision: D7014466

Pulled By: shergin

fbshipit-source-id: a817738d08e1057a4c70f43373132f88fa1461c4
2018-02-25 22:18:31 -08:00
Kevin Gozali 486ac9dc82 update FabricUIManager to call the right JS object
Reviewed By: sebmarkbage

Differential Revision: D7037275

fbshipit-source-id: 6a1d13227910d0cdb99dde4b6c98ed7a20ef9911
2018-02-23 17:04:40 -08:00
Valentin Shergin b7fbeb253a RCTSurface: Support for synchronous waiting for mounting stage
Summary:
So, all initial operations can now be done synchronously (and on the main thread).
To do so, instancitate `RCTSurface` object and call `synchronouslyWaitForStage:timeout:` method like that:

RCTSurface *surface = [[RCTSurface alloc] initWithBridge:... moduleName:... initialProperties:...];
BOOL success = [surface synchronouslyWaitForStage:RCTSurfaceStageSurfaceDidInitialMounting timeout:timeout];

or

RCTSurfaceHostingView *surfaceHostingView = [[RCTSurfaceHostingView alloc] initWithBridge:... moduleName:... initialProperties:...];
BOOL success = [surfaceHostingView.surface synchronouslyWaitForStage:RCTSurfaceStageSurfaceDidInitialMounting timeout:timeout];

Reviewed By: fkgozali

Differential Revision: D7014178

fbshipit-source-id: c3c13904a3587ff2a222fa71623c40c8f30bc8af
2018-02-20 22:19:45 -08:00
Valentin Shergin 402ae2f01f New UIManager API allowing intercept/delay mounting process
Summary: In some embedding/interop cases (RN inside, something else outside), the interop layer has to have the ability to control (intercept, delay, perform synchronously with another stuff) mounting process. This API allows doing that.

Reviewed By: fkgozali

Differential Revision: D7014179

fbshipit-source-id: 04036095f7e60a5ff7e69025ff6066fea92eb361
2018-02-20 22:19:45 -08:00
Valentin Shergin 60c000022e Enforcing sequential ordering of creating view and applying props in UIManager
Summary: See the comment in code.

Reviewed By: fkgozali

Differential Revision: D7014177

fbshipit-source-id: c58db856d7701a285564470eb1f024b5012dd451
2018-02-20 22:19:44 -08:00
Valentin Shergin b90c1cf6c3 RCTSurface: Optional sync ShadowView/View registing
Summary:
See the comment in code.
If we on the main thread on registering time, we can/will break sequentiality of registering and mounting processes doing registration asynchronously.
We need this to make sync mouting eventually possible.

Reviewed By: fkgozali

Differential Revision: D7014176

fbshipit-source-id: 110ad5e5d86e3422eac15c3b1bdb29ae04acd7e6
2018-02-20 22:19:44 -08:00
Pritesh Nandgaonkar c75ce8146f Add constructor in YGLayout
Reviewed By: emilsjolander

Differential Revision: D7019653

fbshipit-source-id: 5a2655626db0915fcebe7d4517e2d0b2e2484460
2018-02-20 05:55:36 -08:00
Pritesh Nandgaonkar b9991d33e3 Move YGStyle to seperate file and add constructors
Reviewed By: emilsjolander

Differential Revision: D7016575

fbshipit-source-id: eb28df0ffb4cc813b23edaff80d7d4ebc56ce6af
2018-02-20 05:55:36 -08:00
Sophie Alpert 1490ab12ef Update license headers for MIT license
Summary:
Includes React Native and its dependencies Fresco, Metro, and Yoga. Excludes samples/examples/docs.

find: ^(?:( *)|( *(?:[\*~#]|::))( )? *)?Copyright (?:\(c\) )?(\d{4})\b.+Facebook[\s\S]+?BSD[\s\S]+?(?:this source tree|the same directory)\.$
replace: $1$2$3Copyright (c) $4-present, Facebook, Inc.\n$2\n$1$2$3This source code is licensed under the MIT license found in the\n$1$2$3LICENSE file in the root directory of this source tree.

Reviewed By: TheSavior, yungsters

Differential Revision: D7007050

fbshipit-source-id: 37dd6bf0ffec0923bfc99c260bb330683f35553e
2018-02-16 18:31:53 -08:00
Douglas 3a3d884df2 tvOS: TV nav event emitter should check for bridge
Summary:
When running with the packager in the tvOS simulator, reloading from the packager hits an assert in `RCTEventEmitter`, causing a crash.  The solution is for `RCTTVNavigationEventEmitter` to check for the existence of the bridge before attempting to send an event.

Manual testing.

[IOS] [BUGFIX] [RCTTVNavigationEventEmitter.m] - Fix crash when reloading in tvOS
Closes https://github.com/facebook/react-native/pull/17797

Differential Revision: D7014975

Pulled By: hramos

fbshipit-source-id: 0bf766e87267ca8592ff0cc0b3cb4621a8e8f9b5
2018-02-16 14:36:56 -08:00
Mehdi Mulani f96dfb9468 Disable font scaling when an explicit font handler is set
Reviewed By: sahrens

Differential Revision: D7003464

fbshipit-source-id: f36ff344c50a9c63af6c852138041c1c918259c8
2018-02-16 12:37:51 -08:00
Kevin Gozali 5f48bd84aa iOS: allow getting an instance of a js-bound module via the bridge
Reviewed By: sebmarkbage

Differential Revision: D6982785

fbshipit-source-id: 7bbcc5416e1d1a3a577328349a7c18af5c0f8577
2018-02-13 22:38:55 -08:00
Kevin Gozali 1aeb9250bd Add JS binding for FabricUIManager - iOS
Reviewed By: sebmarkbage

Differential Revision: D6934518

fbshipit-source-id: 1f626f79a74fb199925644e8b16238aa17d40e1f
2018-02-13 22:38:55 -08:00
Kevin Gozali e165d0dcf0 allow installing extra JS binding via the bridge
Reviewed By: mdvacca

Differential Revision: D6957397

fbshipit-source-id: 172905861fbb1c9ed45149e33b406c28ad616cd7
2018-02-13 22:38:55 -08:00
Paco Estevez Garcia ad2d9e7fab Forward VM version to inspector
Reviewed By: bnham

Differential Revision: D6938018

fbshipit-source-id: c79853ddf835acab86a16ebd539874d29d3aa60a
2018-02-13 08:16:50 -08:00
Valentin Shergin f91f7d91a1 Reimagining of RCTShadowView layout API
Summary:
This is reimagining of interoperability layer between Yoga and ShadowViews (at least in Yoga -> RN part).
Goals:
 * Make it clear and easy.
 * Make clear separation between "what layout what", now parent always layout children, noone layout itself.
 * Make possible to interleave Yoga layout with custom imperative layout (may be used in SafeAreaView, Text, Modal, InputAccessoryView and so on).

Reviewed By: mmmulani

Differential Revision: D6863654

fbshipit-source-id: 5a6a933874f121d46f744aab99a31ae42ddd4a1b
2018-02-12 00:32:43 -08:00
Martin Arista 47b36d3ff0 Update DevLoadingView to Support iPhone X
Summary:
The current implementation of DevLoadingView for iPhone currently gives a static height of `22` and does not take into account iPhoneX screen dimensions.

Devices: All iPhone devices currently available with Xcode v9.2
SDK: 8.1, 9, 10, 11

Validate resize only occurs on iPhone X devices and others remain consistent.

Before:
![feb-10-2018 12-30-20](https://user-images.githubusercontent.com/1743953/36065313-7b41f2ea-0e5e-11e8-87f2-928e26536077.gif)

After:
![feb-10-2018 12-28-15](https://user-images.githubusercontent.com/1743953/36065317-848e4f7e-0e5e-11e8-8aab-70cb5db32f31.gif)

[GENERAL][ENHANCEMENT][{React}] - Improvements to DevLoadingView for iPhone X
Closes https://github.com/facebook/react-native/pull/17936

Differential Revision: D6962962

Pulled By: shergin

fbshipit-source-id: e11d9386544fe19a9195e22a03e12f64e934cad7
2018-02-11 22:49:21 -08:00
Ben Nham fa334ce464 always create debugger websocket connection
Reviewed By: Hypuk, pakoito

Differential Revision: D6918269

fbshipit-source-id: 3175c75d4e8459a61d7907555ab9bd4e95002853
2018-02-08 10:29:40 -08:00
Dmitry Zakharov 0c49c1f332 Native Modules -> Native Extensions
Reviewed By: danzimm

Differential Revision: D6887988

fbshipit-source-id: 475c05f60a2e1ddcfaa9263ab363bff8a528236a
2018-02-07 08:07:13 -08:00
Kevin Gozali b1e5c01483 iOS: Added scaffolding for FabricUIManager native module
Summary: Experimental scaffolding for FabricUIManager.

Reviewed By: mdvacca

Differential Revision: D6908587

fbshipit-source-id: 646fcc72f54dce736378a7777e5753ed56efc2f6
2018-02-06 21:49:37 -08:00
Valentin Shergin 114c258045 Enabling round-to-pixel Yoga feature for RN (iOS)
Summary:
This change enables built-in Yoga mechanism which rounds producing layout metrics to closest "pixel" values.
See previous diff for more context.

Reviewed By: fkgozali

Differential Revision: D6889762

fbshipit-source-id: bc2eea44704db4b377e2e14fab9f67be8c935719
2018-02-05 22:17:22 -08:00
Valentin Shergin ceb1d1ca5b Removing our own implementation of round-to-pixel algorithm
Summary:
> Okay, I don't remember where we first met
> But hey, admitting is the first step

This issue has a looong history.
The original algorithm was introduced by Nick Lockwood (nicklockwood Hey Nick! We miss you!) a while ago and from the very beginning this has one small error that basically makes it useless (try to find it yourself, it's fun!)
The problem was discovered and fixed twice (D4133643, D4983054), but every time we found that our <Text> infra was not ready for this, so we reverted and abandoned the change. As part of the last attempt to finally solve the issue, I ported the algorithm to Yoga where it lives today and works very well for Lytho and CK.
For now, the vision is clear:
 * The basic algorithm should live in Yoga for unification and performance reasons.
 * We still have to have `absolutePostion` as part of this API because it might be useful for some components which implement its own custom/non-Yoga-based layout.
 * We have to enable it in RN eventually.

So, this is the first step: Removing old, broken code which we don't plan to fix and use.

Make React Native crisp again!

Reviewed By: fkgozali

Differential Revision: D6888662

fbshipit-source-id: 2e5098d9935dcbe05d66c777dad3a9ec8ac87ec3
2018-02-05 22:17:22 -08:00
Valentin Shergin c19bc79688 `[RCTShadowView isHidden]` was removed
Summary:
It's unused.
Use `display` prop instead to control visiblity of the view.

Reviewed By: fkgozali

Differential Revision: D6888104

fbshipit-source-id: dd37a365033ec36bdfcfa305ec6a965a10dec2cd
2018-02-05 22:17:22 -08:00
Valentin Shergin 9dfa2e7f3c Removed `[ShadowView collectUpdatedFrames:]`
Summary: Another juicy leftover from old Text implementation.

Reviewed By: fkgozali

Differential Revision: D6887942

fbshipit-source-id: d0363d06d566554c03d0ae3293597daf9c387028
2018-02-05 22:17:22 -08:00
Valentin Shergin 0f9fc4b295 `processUpdatedProperties` & `collectUpdatedProperties` was removed from RCTShadowView
Summary: This is leftovers from last <Text> reimplementation; nobody uses it and it does not hooked up with UIManager.

Reviewed By: fkgozali

Differential Revision: D6887795

fbshipit-source-id: 9e2e29af4ba959270096eeb494666d1cacaeba32
2018-02-05 22:17:22 -08:00
Marc Horowitz 816d417189 Delete RCTBatchedBridge
Summary:
I've talked to several major community users, and they're all ok with deleting this
code.  There's several doc fixes which will make it easier for third
party developers which should land about the same time this will.

Also buried along with it is RCTJSCExecutor.

Reviewed By: javache

Differential Revision: D6880781

fbshipit-source-id: b4cb1143def6fd23a96290e478fa728adbedacd3
2018-02-05 12:02:35 -08:00
Ray Shih 88980f2ef7 Implement bundle sync status
Reviewed By: pakoito

Differential Revision: D6807480

fbshipit-source-id: d71f2cecd882c47e79bb71dfb9d03d3597fa4068
2018-02-01 06:18:13 -08:00
Valentin Shergin d74ff6fadd Fixed typo in RCTSurfaceRootShadowView
Summary:
Trivial.
Special thanks to janicduplessis

Created from Diffusion's 'Open in Editor' feature.

Reviewed By: fkgozali

Differential Revision: D6863932

fbshipit-source-id: d40a30271adc5c8d47149ab920e2ac11158ab756
2018-01-31 15:16:36 -08:00
Mehdi Mulani a70fdac5bd Measure touch events from nearest "root view"
Summary:
This makes RCTTouchHandler follow the same logic when sending touch event
coordinates as `UIManager.measure`.
This is important as UIManager.measure is used in `Touchable.js` aka the mother
of all touch events in RN.

In particular, this will make touch events correctly handled for places where RN is embedded into other screens.

Reviewed By: shergin

Differential Revision: D6838102

fbshipit-source-id: 70cad52606ea931cb637d8aa2d4845818eea0647
2018-01-31 14:46:39 -08:00
Agastya Darma b1cdb7d553 Implementing space-evenly
Summary:
So in v0.52.0 space-evenly is introduced but not yet implemented (1050e0b by woehrl01). This pull request implements the space-evenly.

Manual Testing.
![notes marker](https://i.imgur.com/IXmezVY.png)

[IOS] [FEATURE] [Yoga] Adding space-evenly on justify-content in iOS
[ANDROID] [FEATURE] [Yoga] - Adding space-evenly on justify-content in Android
Closes https://github.com/facebook/react-native/pull/17805

Differential Revision: D6858294

Pulled By: shergin

fbshipit-source-id: 7a705ca05f58603ef4588e1bfd16c16a78f8a390
2018-01-31 10:17:22 -08:00
Douglas Lowder a63fd378a4 Link both iOS and tvOS libraries with react-native link (fix #13783)
Summary:
Fix issues with the react-native CLI when linking iOS and tvOS libraries to a project created with `react-native init`. (#13783)

Verified the changes against test project at https://github.com/dlowder-salesforce/react-native-link-test.  Both `react-native link react-native-svg` and `react-native unlink react-native-svg` work correctly on this project.  Added new unit test for the new file added to `local-cli/link/ios`.

[CLI] [BUGFIX] `react-native link` has been fixed to correctly link iOS and tvOS targets.
[IOS] [BUGFIX] `react-native link` has been fixed to correctly link iOS and tvOS targets.
Closes https://github.com/facebook/react-native/pull/17231

Differential Revision: D6837567

Pulled By: hramos

fbshipit-source-id: 234d3d3966ae1b89cd16a37c95d303553f7ba5f5
2018-01-30 16:28:59 -08:00
Valentin Shergin 5fba82deff Fixing clowntown in RCTSurfaceRootShadowView
Summary: Obvious.

Reviewed By: mmmulani

Differential Revision: D6829844

fbshipit-source-id: 6c49be990fbcc3be2b5595866c3d1fd42a3eb3e9
2018-01-30 14:31:57 -08:00
Mehdi Mulani a9c684a0ff Allow substituting a default font handler
Reviewed By: nscoding

Differential Revision: D6798995

fbshipit-source-id: 541b4391428d1ee9c0b394033182dc232536c864
2018-01-30 13:51:19 -08:00
Semen Zhydenko 8ffc16c6e7 Typos in code
Summary:
To fix typos

No testing required, changed only internal things names

No

addtionalStyles -> additionalStyles
occured -> occurred
recomendedType -> recommendedType
markDirtyAndPropogate -> markDirtyAndPropagate
targetting -> targeting
RCTApplyTranformationAccordingLayoutDirection -> RCTApplyTransformationAccordingLayoutDirection (tranform -> transform)
Closes https://github.com/facebook/react-native/pull/17587

Differential Revision: D6832696

Pulled By: shergin

fbshipit-source-id: 452287e5ce82df5c6b87126cb21889b7bd9d73c1
2018-01-29 19:17:33 -08:00
Adam Putinski 31288161e1 Add accessibilityElementsHidden prop
Summary:
Allow iOS to have similar accessibility functionality to Android. This PR exposes the `accessibilityElementsHidden` property on iOS which is similar to Android's `importantForAccessibility="no-hide-descendants"`

I didn't see any existing examples for testing native props being passed through, but I did add an example to the RNTester app. I've attached some screenshots using the Accessibility Inspector to verify the property was correctly passed through.

![a](https://user-images.githubusercontent.com/603528/34998153-50e66776-faac-11e7-826d-1445a6813929.png)
![b](https://user-images.githubusercontent.com/603528/34998158-535a7420-faac-11e7-80d4-992fb7cd82dd.png)

I've updated the website with appropriate documentation.

https://github.com/facebook/react-native-website/pull/141

![screen shot 2018-01-16 at 10 23 50](https://user-images.githubusercontent.com/603528/34998202-6f2f39a6-faac-11e7-8651-0cfe8e037a30.png)
![screen shot 2018-01-16 at 10 23 59](https://user-images.githubusercontent.com/603528/34998205-711d6f94-faac-11e7-974d-54340c72fce4.png)

[IOS] [FEATURE] [View] - Added accessibilityElementsHidden property
Closes https://github.com/facebook/react-native/pull/17627

Differential Revision: D6806444

Pulled By: hramos

fbshipit-source-id: 50d31fdb92f4c59ae9355b019c422418b2e6cc24
2018-01-29 14:44:11 -08:00
Dmitry Zakharov 429fcc8cab Migrate DeviceInfoModule from RN Module to Native Function.
Reviewed By: danzimm

Differential Revision: D6750934

fbshipit-source-id: f453801737e41632c6b84ff894e7f0eb66b575dc
2018-01-29 11:18:42 -08:00
Valentin Shergin e3ff3cf6cb Removed outdated assertion in RCTShadowView related to breaking change in Yoga
Summary: It's been more than two years; I think everyone already migrated and learned the new behavior.

Reviewed By: emilsjolander

Differential Revision: D6829885

fbshipit-source-id: a86d56fb7235a137e9ce6e360d7ae2224b047313
2018-01-29 10:47:14 -08:00
Vojtech Novak ed5872e2cc Make sure refreshControl shows up on initial render if specified
Summary:
[this commit](2e1707d0e6) which was just a small refactor broke refreshControl behavior - if we render FlatList with refreshing=true, the refreshControl won't be visible on initial render.

The problem is, the [previous beginRefreshing method](2e1707d0e6 (diff-cfafa8d7e42ab87ab863f917e187a4aeL51)) was renamed to `beginRefreshingProgramatically` and the old call was left in one place [here](2e1707d0e6 (diff-cfafa8d7e42ab87ab863f917e187a4aeR47)).

Now, I am not sure what kind of jumping the mentioned commit was fixing, but since this fix only concerns the initial render, I believe it will not influence the jumping fix.

I have tested this locally in my app, can provide a video if needed.

none

 [IOS] [BUGFIX] [RefreshControl] - Make sure refreshControl shows up on initial render if specified
Closes https://github.com/facebook/react-native/pull/17727

Differential Revision: D6827402

Pulled By: shergin

fbshipit-source-id: 25849244e87af54f25d636b6ade7adcf88958980
2018-01-28 22:29:51 -08:00
Valentin Shergin 2716f53220 The New <Text> on iOS
Summary:
This is a complete rewrite of RCTText, the part of React Native which manages Text and TextInput components.

Key points:

* It's understandable now. It follows a simple architectural pattern, and it's easy to debug and iterate. Text flow layout is a first-class citizen in React Native layout system now, not just a wired special case. It also brings entirely new possibilities such as nested interleaving <Text> and <View> components.
* All <Text>-specific APIs were removed from UIManager and co (it's about ~16 public methods which were used exclusively only by <Text>).
* It relies on new Yoga measurement/cloning API and on-dirty handler. So, it removes built-in dirty propagation subsystem from RN completely.
* It caches string fragments properly and granularly on a per-node basis which makes updating text-containing components more performant.
* It does not instantiate UIView for virtual components which reduces memory utilization.
* It drastically improves <TextInput> capabilities (e.g. rich text inside single line <TextInput> is now supported).

Screenshots:
https://cl.ly/2j3r1V0L0324
https://cl.ly/3N2V3C3d3q3R

Reviewed By: mmmulani

Differential Revision: D6617326

fbshipit-source-id: 35d4d81b35c9870e9557d0211c0e934e6072a41e
2018-01-24 00:03:01 -08:00
Alex Dvornikov 70d23e82ad Check for nullptr when accessing isInspectable method
Reviewed By: javache

Differential Revision: D6785733

fbshipit-source-id: 1bbb884746e671124b7d2d950a3419ea33d70522
2018-01-23 10:13:36 -08:00
Alex Dvornikov 493f3e8da5 Handle invalidation error in RCTObjcExecutor
Differential Revision: D6748200

fbshipit-source-id: eb98782c2ba080273c1f027846984f5f4caddf26
2018-01-18 15:23:03 -08:00
Spencer Ahrens 65184ec6b0 rename and extend new maintain visible content position feature
Summary:
Builds off of cae7179c94

- Make the prop a dictionary for more configuration options
- Rename `maintainPositionAtOrBeyondIndex` -> `maintainVisibleContentPosition` + `minIndexForVisible`
- Add autoscroll threshold feature

Given the async native of RN JS and background layout, there is no way to trigger the scrollTo from JS without risking a delay, so we add the feature in native code.

== Test Plan ==
ScrollViewExample:
https://youtu.be/pmY8pxC9PRs

Reviewed By: shergin

Differential Revision: D6729160

fbshipit-source-id: 70f9bae460ce84567857a4f696da78ce9b3b834c
2018-01-18 14:01:50 -08:00
Valentin Shergin 6882132421 Introduced -[RCTShadowView contentFrame]
Summary:
Another trivial sugar/helper to access computed by Yoga layout metrics.
We will use it soon in the new Text render/layout engine.

Reviewed By: mmmulani

Differential Revision: D6671979

fbshipit-source-id: d36933415c2fa50bae5cc171434d8f0b281955b7
2018-01-16 12:57:46 -08:00
Valentin Shergin 193a2bd4cd Tweaking -[RCTSurface synchronouslyWaitForStage:]
Summary: Waiting for layout is now available on main thread.

Reviewed By: mmmulani

Differential Revision: D6719836

fbshipit-source-id: ef655095e999df5f77e69c5931459cce1aaeb1f0
2018-01-16 12:32:13 -08:00
Semen Zhydenko d2c569795c Typos in comments and log messages
Summary:
No code changes, no testing required.

alligned -> aligned
allignment -> alignment
completly -> completely
conseptually -> conceptually
decendents -> descendants
indefinetly -> indefinitely
dimention -> dimension
doesnt -> doesn't
safegaurd -> safeguard
intialization -> initialization
hierachy -> hierarchy
happend -> happened
gaurd -> guard
programatically -> programmatically
initalized -> initialized
immidiately -> immediately
occured -> occurred
unkown -> unknown
neccessary -> necessary
neccesarily -> necessarily
occuring -> occurring
comoponent -> component
propogate -> propagate
recieved -> received
referece -> reference
perfomance -> performance
recieving -> receiving
subsquently -> subsequently
scoll -> scroll
suprisingly -> surprisingly
targetting -> targeting
tranform -> transform
symetrical -> symmetrical
wtih -> with
Closes https://github.com/facebook/react-native/pull/17578

Differential Revision: D6718791

Pulled By: shergin

fbshipit-source-id: 4ab79c1131ec5971d35a0c7199eba7ec0a0918ad
2018-01-12 22:18:45 -08:00
Spencer Ahrens cae7179c94 new feature to support smooth bi-directional content loading
Summary:
== Problem / Background ==

Most lists paginate in a single direction (standard infinite list), but some paginate in both directions. Most common example is a chat thread where new messages show up on the bottom, and old content can be loaded by scrolling up. Comment threads are another example.

Right now, adding content to the bottom of a scroll view is smooth - the content doesn't jump. But when adding to the top of the scrollview, the content gets pushed down, which is jarring (note this may appear reversed because of inverting the list which is common for chat applications).

== Approach ==

The basic idea is simple - we set a flag in JS, then for every uimanager transaction, we record which is the first eligible and visible view in the ScrollView, and compare it's new origin to the old one. If it has changed, we update the contentOffset of the ScrollView to compensate.

This is done by observing `willPerformMounting` directly (only from scrollviews that have this new property set), and then observing the prev state with prependUIBlock and making the update synchronously in addUIBlock to avoid any flicker.

There is also a way to skip views that we don't care about, like a spinner at the top of the view that we don't want to stay in place - we actually want it to get pushed up by the new content, replaced visually in the viewport.

== Notes ==

Most chat applications will probably want to do a scrollToTop when new content comes in and the user is already scrolled at or near the bottom.

This is glitchy if visible children are re-ordered, which could be fixed with additional logic, but it doesn't come up in the type of applications we're targetting here so punting on that.

== Test Plan ==

https://youtu.be/4GcqDGz9eOE

Reviewed By: shergin

Differential Revision: D6696921

fbshipit-source-id: 822e7dfcb207006cd1ba098356324ea81f619428
2018-01-12 19:16:00 -08:00
Valentin Shergin 06ebaf2205 Missing moving pieces of RCTSurfaceHostingView
Summary: Now it actually works.

Reviewed By: mmmulani

Differential Revision: D6701105

fbshipit-source-id: 16f3f4e319f874f9a08867b784d13aad4fa22aeb
2018-01-11 18:57:31 -08:00
Valentin Shergin 7d9e902d72 Proper check for RCTRootShadowView in RCTUIManager
Summary: Because setting `intrinsicContentSize` for `RCTSurfaceRootView` doesn't have much sense.

Reviewed By: mmmulani

Differential Revision: D6701107

fbshipit-source-id: 259cdd27339bba3e8c9f98b6ca34affeb87f298c
2018-01-11 18:57:31 -08:00