Summary:
RCTWrapper is a library that allows turn any UIView/UIViewController-based widget into React Native component
which will respect layout constrains of native (wrapped) view.
So, you don't need to explicitly specify width and hight in styling.
Take a look at examples to see how to use RCTWrapper.
Reviewed By: mmmulani
Differential Revision: D5868763
fbshipit-source-id: 0a503b42be166d547ca6cbf0829eea9c75a8e364
Summary: It saves 8 bytes per shadowView instance, and it is more logical because it does nothing by default.
Reviewed By: javache
Differential Revision: D5997804
fbshipit-source-id: c985a11aeea881e95911469e10c8c27429a2718a
Summary:
This is workaround for blury and thick borders on iOS when specified border size does not multiplier of pixel size.
Original problem is probably related to CALayer border drawing specifics; documented as T22099662 and
https://github.com/facebook/react-native/issues/14106
Before:
https://pxl.cl/9cJ7
After:
https://pxl.cl/9cJ4
Reviewed By: javache
Differential Revision: D5999752
fbshipit-source-id: ad6d1078c6ebf7c8e0a3bc3c150525480a5a7a5c
Summary:
Now RCTTextInput relies on ivar to detect should it reconstruct inputAccessoryView or not.
Previously we checked `inputAccessoryView` directly which breaks some 3rd party libs.
See https://github.com/facebook/react-native/issues/16071 for more details.
cc douglasjunior
Reviewed By: javache
Differential Revision: D5994798
fbshipit-source-id: c086efdd24f5528393a4c734ff7c984e0ed740d1
Summary:
Queues Problem Intro:
UIManager queue is special queue because it has special relationship with
the Main queue.
This particular relationship comes from two key factors:
1. UIManager initiates execution of many blocks on the Main queue;
2. In some cases, we want to initiate (and wait for) some UIManager's work *synchronously* from
the Main queue.
So, how can we meet these criteria?
"Pseudo UIManager queue" comes to rescue!
"Pseudo UIManager queue" means safe execution of typical UIManager's work
on the Main queue while the UIManager queue is explicitly blocked for preventing
simultaneous/concurrent memory access.
So, how can we technically do this?
1. `RCTAssertUIManagerQueue` is okay with execution on both actual UIManager and
Pseudo UIManager queues.
2. Both `RCTExecuteOnUIManagerQueue` and `RCTUnsafeExecuteOnUIManagerQueueSync`
execute given block *synchronously* if they were called on actual UIManager
or Pseudo UIManager queues.
3. `RCTExecuteOnMainQueue` executes given block *synchronously* if we already on
the Main queue.
4. `RCTUnsafeExecuteOnUIManagerQueueSync` is smart enough to do the trick:
It detects calling on the Main queue and in this case, instead of doing
trivial *synchronous* dispatch, it does:
- Block the Main queue;
- Dispatch the special block on UIManager queue to block the queue and
concurrent memory access;
- Execute the given block on the Main queue;
- Unblock the UIManager queue.
Imagine the analogy: We have two queues: the Main one and UIManager one.
And these queues are two lanes of railway go in parallel. Then,
at some point, we merge UIManager lane with the Main lane, and all cars use
the unified the Main lane.
And then we split lanes again.
This solution assumes that the code running on UIManager queue will never
*explicitly* block the Main queue via calling `RCTUnsafeExecuteOnMainQueueSync`.
Otherwise, it can cause a deadlock.
Reviewed By: mmmulani
Differential Revision: D5935464
fbshipit-source-id: 6a60ff236280d825b4e2b101f06222266097b97f
Summary:
`CheckBox` component was introduced in v0.49.0 and not implemented on iOS.
Users who are trying to use `CheckBox` on iOS will get a warning that
> Native component for "AndroidCheckBox" does not exist
We should declare in the document that this component is Android only and use `UnimplementedView` for iOS.
- Use `react-native init` new project
- Apply pull request changes
- Add `<Checkbox />` after welcome text in `App.js`
- Run the app in iOS simulator
Closes https://github.com/facebook/react-native/pull/16211
Differential Revision: D6005393
Pulled By: hramos
fbshipit-source-id: 1c9b68b5e1c933496c4d7c2f487f0500264b603a
Summary:
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Tests were failing due to not updated snapshot about TouchableHighlight.
Run `npm test`.
Closes https://github.com/facebook/react-native/pull/16185
Differential Revision: D6005399
Pulled By: hramos
fbshipit-source-id: eda5009b68ca121250817de448424105aec6f685
Summary:
I don't think a test plan is required here! 😛
Closes https://github.com/facebook/react-native/pull/16243
Differential Revision: D6005196
Pulled By: hramos
fbshipit-source-id: 3b46346e57e0d9971078c4807a4fa0045a8366b1
Summary:
This is pretty normal and harmless case, we should not crash here.
I plan to refactor similar places in this file soon.
Reviewed By: AaaChiuuu
Differential Revision: D5983443
fbshipit-source-id: 922fea8ed12ebef45d249f16739aa81fe3254f19
Summary: Remove RCTWebSocketObserver as it's not used anywhere in the project.
Reviewed By: shergin
Differential Revision: D5960354
fbshipit-source-id: a5b9d128f7cf9384a9fa9ed20e869801023e1d57
Summary: As RCTNativeModule can be destructed at any time, it's unsafe to capture "this" in a callback.
Reviewed By: javache
Differential Revision: D5963728
fbshipit-source-id: c80a01c851d97813e4fead2b31c442eaeb8ae204
Summary:
YellowBox currently assumes the first arg is a printf like format string, this adds support for any arguments so it works more like console in the browser. This also adds `stringifySafe` to format arguments when using printf style.
The main annoyance that this fixes is when trying to log a single object it will currently print [object Object] instead of the fully stringified version.
**Test plan**
Tested a bunch of different log combinations.
```js
console.warn({test: 'a'}); // {"test":"a"} (was [object Object] before this patch)
console.warn('test %s %s', 1, {}); // test 1 {}
console.warn('test %s', 1, {}); // test 1 {}
console.warn({}, {}, {}, {}); // {} {} {} {}
```
Closes https://github.com/facebook/react-native/pull/16132
Differential Revision: D5973125
Pulled By: yungsters
fbshipit-source-id: fc17105a79473a11c9b1c4728d435fc54fb094bb
Summary:
Motivation:
(SUDDENLY) There is a thing on Android called SpanWather, and their purpose is to notify "the watcher" about span-related changes in SpannableString. The idea is: some special kind of span can have some logic to prevent or tweak interleaving with some another kind of spans. To do so, it has to implement SpanWather interface.
So, EditText uses this to control internal spannable object (!) and SUDDENLY (＃＞＜) calls internal "layout" method as a reaction to adding new spans. So, when we are cloning SpannableString, we are (re)applying same span objects to a new spannable instance, and it causes notifying other spans in the string, and they notify EditText, and the EditText does relayout and... BOOM!
So, the solution is, easy, we should use SpannableStringBuilder instead of SpannableString because it does not notify SpanWather during cloning.
See:
https://android.googlesource.com/platform/frameworks/base/+/master/core/java/android/text/SpannableStringBuilder.java#101
(the first argument is `false`).
https://android.googlesource.com/platform/frameworks/base/+/master/core/java/android/text/SpannableStringBuilder.java#678
Compare with:
https://android.googlesource.com/platform/frameworks/base/+/master/core/java/android/text/SpannableStringInternal.java#43
Why? I believe because SpannableStringBuilder objects are "unfinished" by design, and documentation said: "it is the caller's responsibility to restore invariants [among spans]". As we do an exact clone of the string, that's perfectly okay to assume that all invariants were already satisfied for original string.
Reviewed By: achen1
Differential Revision: D5970940
fbshipit-source-id: 590ca0e3aede4470b809c7db527c5d55ddf5edb4
Summary:
Removed <b>'use strict'</b> from docs since ES6 Modules already use <b>'use strict'</b> by default.
https://stackoverflow.com/questions/31685262/not-recommended-to-use-use-strict-in-es6
> 10.2.1 Strict Mode Code
> An ECMAScript Script syntactic unit may be processed using either unrestricted or strict mode syntax and semantics. Code is interpreted as strict mode code in the following situations:
> Global code is strict mode code if it begins with a Directive Prologue that contains a Use Strict Directive (see 14.1.1).
Module code is always strict mode code.
All parts of a ClassDeclaration or a ClassExpression are strict mode code.
Eval code is strict mode code if it begins with a Directive Prologue that contains a Use Strict Directive or if the call to eval is a direct eval (see 12.3.4.1) that is contained in strict mode code.
Function code is strict mode code if the associated FunctionDeclaration, FunctionExpression, GeneratorDeclaration, GeneratorExpression, MethodDefinition, or ArrowFunction is contained in strict mode code or if the code that produces the value of the function’s [[ECMAScriptCode]] internal slot begins with a Directive Prologue that contains a Use Strict Directive.
Function code that is supplied as the arguments to the built-in Function and Generator constructors is strict mode code if the last argument is a String that when processed is a FunctionBody that begins with a Directive Prologue that contains a Use Strict Directive.
Spec: http://www.ecma-international.org/ecma-262/6.0/#sec-strict-mode-code
Closes https://github.com/facebook/react-native/pull/16163
Differential Revision: D5968746
Pulled By: hramos
fbshipit-source-id: 308f49184b1565311d5fd71786639eaee13be60a
Summary: In some enviroments PlatformConstants native module may not be presented in a project, which results in a call to undefined property and a RedBox
Reviewed By: javache
Differential Revision: D5960879
fbshipit-source-id: 80aecbe2f2a61cb410abd5f0dce8ba855e166991
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
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My first contribution 👍
(Write your test plan here. If you changed any code, please provide us with clear instructions on how you verified your changes work. Bonus points for screenshots and videos!)
Closes https://github.com/facebook/react-native/pull/16155
Differential Revision: D5962399
Pulled By: shergin
fbshipit-source-id: b7a44d53d875b32d04c1b876eb7ec2f30a9d0d80
Valentin Shergin
Yann Pringault
Tim Wang
Matej Strasek
Gabriel Weyer
Paul Brittain
Paulo Ricardo Severo
Adam Ernst
Pieter De Baets
Max Sherman
Alex Dvornikov
Alexey Lang
Naman Goel
Gustavo Gard
Alex Kotliarskyi
Suhair Zain
Ram N
Brian Vaughn
Andrew Chen (Eng)
Paco Estevez Garcia
Janic Duplessis
Frank Manns
Karl Tarvas
James Ide
Indrek Lasn
Ramanpreet Nara
Aaron Chiu
Dmitry Zakharov
phillip055
