Summary: Since we don't support this, we should throw early. Also tries to improve the error message when adding a node that doesn't have a YogaNode to a node that can't measure itself.
Reviewed By: andreicoman11
Differential Revision: D4421542
fbshipit-source-id: e0be8cdd763091145e5e6af2db91515f4d236b37
Summary:
This is an attempt to fix the following startup exception that I get when running any of the example apps:
> Unrecognized type: interface com.facebook.react.bridge.Dynamic for method: com.facebook.react.uimanager.LayoutShadowNode#setFlexBasis
I really have no idea what I'm doing here, just trying to get UIExplorer to compile and run so I can test my upcoming PRs. ~~Unfortunately, this doesn't actually make the apps run, but at least it does get rid of the startup exception!~~ Edit: it works now.
**Test plan:** Run Movies and UIExplorer example app
Closes https://github.com/facebook/react-native/pull/11896
Differential Revision: D4418927
Pulled By: mkonicek
fbshipit-source-id: 34788b790b6bfc46ff39a0d9ca1698a5c20662e1
Summary:
Adds the feature to use percentage as a value unit.
You can use the function ```YGPx(float)``` and ```YGPercent(float)``` for convenience.
I did some benchmarks:
```
Without Percentage Feature - Release x86:
Stack with flex: median: 0.000000 ms, stddev: 0.146683 ms
Align stretch in undefined axis: median: 0.000000 ms, stddev: 0.136525 ms
Nested flex: median: 0.000000 ms, stddev: 0.490101 ms
Huge nested layout: median: 23.000000 ms, stddev: 0.928291 ms
Stack with flex: median: 0.000000 ms, stddev: 0.170587 ms
Align stretch in undefined axis: median: 0.000000 ms, stddev: 0.143384 ms
Nested flex: median: 0.000000 ms, stddev: 0.477791 ms
Huge nested layout: median: 22.000000 ms, stddev: 2.129779 ms
With Percentage Feature - Release x86:
Stack with flex: median: 0.000000 ms, stddev: 0.132951 ms
Align stretch in undefined axis: median: 0.000000 ms, stddev: 0.136525 ms
Nested flex: median: 0.000000 ms, stddev: 0.489570 ms
Huge nested layout: median: 21.000000 ms, stddev: 1.390476 ms
Closes https://github.com/facebook/yoga/pull/258
Reviewed By: dshahidehpour
Differential Revision: D4361945
Pulled By: emilsjolander
fbshipit-source-id: a8f5bc63ad352eb9410d792729e56664468cd76a
Summary:
Android has a text API called breakStrategy for controlling how paragraphs are broken up into lines. For example, some modes support automatically hyphenating words so a word can be split across lines while others do not.
One source of complexity is that Android provides different defaults for `breakStrategy` for `TextView` vs `EditText`. `TextView`'s default is `BREAK_STRATEGY_HIGH_QUALITY` while `EditText`'s default is `BREAK_STRATEGY_SIMPLE`.
In addition to exposing `textBreakStrategy`, this change also fixes a couple of rendering glitches with `Text` and `TextInput`. `TextView` and `EditText` have different default values for `breakStrategy` and `hyphenationFrequency` than `StaticLayout`. Consequently, we were using different parameters for measuring and rendering. Whenever measuring and rendering parameters are inconsistent, it can result in visual glitches such as the text taking up too much space or being clipped.
This change fixes these inconsistencies by setting `breakStrategy` and `hyphenat
Closes https://github.com/facebook/react-native/pull/11007
Differential Revision: D4227495
Pulled By: lacker
fbshipit-source-id: c2d96bd0ddc7bd315fda016fb4f1b5108a2e35cf
Summary:
The reason for this change is to implement `allowFontScaling` on the Android's React Native Text component. Prior to this PR `allowFontScaling` only works for iOS.
The following link contains images of `allowFontScaling` working in Android on small, normal, large, and huge system fonts (from native Android display settings)
http://imgur.com/a/94bF1
The following link is a video of the same thing working on an Android emulator
https://youtu.be/1jTlZhPdj9Y
Here is the sample code snippet driving the video/images
```
render() {
const size = [12, 14, 16, 18];
return (
<View style={{backgroundColor: 'white', flex: 1}}>
<Text>
Default size no allowFontScaling prop (default true)
</Text>
<Text allowFontScaling={true}>
Default size allowFontScaling: true
</Text>
<Text style={{ marginBottom: 10, }} allowFontScaling={false}>
Default size allowFontScaling: false
</Text>
{ size.map(
Closes https://github.com/facebook/react-native/pull/10898
Differential Revision: D4335190
Pulled By: lacker
fbshipit-source-id: 0480809c44983644ff2abfcaf4887569b2bfede5
Summary:
This PR fixes#11096.
I don't know enough the ReactAndroid's source code so I don't know if this is correct but I hope it is.
In a recent commit (https://github.com/facebook/react-native/commit/d4b8ae7a8a3de314b5813e0bfcdf5fb265129d43), the `dispatchUpdates` method now returns a boolean to dispatch or not the `onLayout` event. This works well but if the content is unchanged, the line `nativeViewHierarchyOptimizer.handleUpdateLayout(this);` is never called. I don't know if it was intended but it was this which introduces my issue. I called this again even if the content didn't change. This was the behaviour before 0.38 so I guess I didn't break anything.
**Test plan (required)**
I tested my pretty big app with this fix and every screen is ok.
Closes https://github.com/facebook/react-native/pull/11222
Differential Revision: D4252101
Pulled By: astreet
fbshipit-source-id: 551559234631ac37245a854d81ba568f0ddb02dd
Summary:
When using text inputs inside a ScrollView with `keyboardShouldPersistTaps=false` (default behavior) tapping another text input dismisses the keyboard instead of keeping it open and focusing the new text input which I think is the better and expected behavior.
See #10628 for more discussion about that. Note that this affects nothing but the behavior with text inputs unlike #10628.
cc satya164 MaxLap ericvicenti
Closes https://github.com/facebook/react-native/pull/10887
Differential Revision: D4178474
Pulled By: ericvicenti
fbshipit-source-id: 0c62ea2fac0017d559d1f8674b0a686a5e1b3d2d
Summary:
Expose aspectRatio style prop from css-layout to React Native.
This means the following will now work:
<View style={{backgroundColor: 'blue', aspectRatio: 1}}/>
Reviewed By: javache
Differential Revision: D4226472
fbshipit-source-id: c8709a7c0abbf77089a4e867879b42dcd9116f65
Summary:
When native events where handled they were not sent to JS as an optimization but this caused some issues. One of the major one is touches are not handled properly inside a ScrollView with an Animated.event because it doesn't receive scroll events so it can't cancel the touch if the user scrolled.
Closes https://github.com/facebook/react-native/pull/10981
Differential Revision: D4226403
Pulled By: astreet
fbshipit-source-id: 41278d3ed4b684af142d9e273b11b974eb679879
Summary:
Virtual shadow nodes (e.g. text) don't use CSSNodes so we don't need to create them. This shows large savings in CSSNodes allocated, depending on the app.
This could be breaking if:
- You have virtual nodes that still set and get CSS properties. The setters now no-op for virtual nodes (I unfortunately couldn't remove them completely -- see the comment on LayoutShadowNode), but the getters will NPE. If you see these NPE's, you should almost definitely be using your own datastructure instead of a CSSNode as virtual nodes will not participate in the layout process (and the CSSNode is then behaving just as a POJO for you).
I do not anticipate this to be breaking for anyone, but am including breaking in the commit message since this is a change in API contract.
Reviewed By: emilsjolander
Differential Revision: D4220204
fbshipit-source-id: b8dc083fff420eb94180f669dd49389136111ecb
Summary:
The only callsite of `coalesce` looks like this:
```
newEvent.coalesce(oldEvent);
```
The default `coalesce` implementation returns the event with the most recent timestamp. When the events have the same timestamp then, using the variable names from above, `coalesce` returns `oldEvent`.
This change updates `coalesce`'s implementation to make it explicit that it returns `this` (`newEvent` in the variable names from above) in the case of a tie.
The motivation for this change is related to scroll events. In my team's app, we were seeing scroll events being emitted with the same timestamp and the coalescing logic was causing the oldest scroll event to be chosen. This was causing our JavaScript code to receive stale scroll information and the way the JavaScript code utilized this stale scroll information resulted in the ScrollView settling on the wrong scroll position.
**Test plan (required)**
Verified that scroll events work properly in a ScrollView in a test app. Also, my team's app uses this
Closes https://github.com/facebook/react-native/pull/11080
Differential Revision: D4226152
Pulled By: andreicoman11
fbshipit-source-id: d28a2569225ca95de662f2239a0fa14de0540a7d
Summary: Adds a pool to recycle CSSNodes within UIManager. A follow-up diff will hook this up to a memory pressure listener to drop the pool on memory pressure.
Reviewed By: emilsjolander
Differential Revision: D4189532
fbshipit-source-id: 46583546f71a8c59853e1dd124de31657b3c617b
Summary:
Moves from CSSNodeDEPRECATED to CSSNode. This has shown to be a huge performance win for layout time within FB.
This is BREAKING because CSSNode contains bug fixes that were not migrated to CSSNodeDEPRECATED which may change the way your layout appears. The most common of these by far involves `flex: 1`.
Previously, developers had to put `flex: 1` in many places it didn't belong in order to work around a bug in css-layout. Now `flex: 1` is treated properly and, unfortunately, this means that your layout may no longer look correct. Specifically, you may see that your layout looks collapsed, or children don't render. The fix is to simply remove `flex: 1` from those containers.
Reviewed By: emilsjolander
Differential Revision: D3992787
fbshipit-source-id: 7a3a2a34a8941c0524e6ba3c5379e434d3e03247
Summary: The java enum was recently changed from NOWRAP -> NO_WRAP so the translation from js failed. This fixes that.
Reviewed By: limichaelc
Differential Revision: D4186869
fbshipit-source-id: fe35211a6632d80356d35a01a079279ef4bd7006
Summary:
This diff makes it so ReactShadowNode holds a CSSNode instead of extending one. This will enable us to pool and re-use CSSNodes and will allow us to keep from breaking the CSSNode api assumption that nodes that have measure functions don't have children (right now, text nodes have measure functions, but they also have raw text children).
BREAKING
This diff makes ReactShadowNode no longer extend CSSNodeDEPRECATED. If you have code that depended on that, e.g. via instanceof checks, that will no longer work as expected. Subclasses that override getChildAt/addChildAt/etc will need to update your method signatures. There should be no runtime behavior changes.
Reviewed By: emilsjolander
Differential Revision: D4153818
fbshipit-source-id: 2836434dd925d8e4651b9bb94b602c235e1e7665
Summary:
JS API very similar to web workers and node's child process.
Work has been done by somebody else for the Android implementation over at #7020, so we'd need to have these in sync before anything gets merged.
I've made a prop `messagingEnabled` to be more explicit about creating globals—it might be sufficient to just check for an onMessage handler though.

Closes https://github.com/facebook/react-native/pull/9762
Differential Revision: D4008260
fbshipit-source-id: 84b1afafbc0ab1edc3dfbf1a8fb870218e171a4c
Summary: This way `UIImplementation` can hold on to it and use it outside of calls from the `UIManagerModule`.
Reviewed By: lexs
Differential Revision: D3899774
fbshipit-source-id: 01e4956c4540bcdf30774a3f40a625e934714ee9
Summary: Provide a base `HeadlessJsTaskService` class that can be extended to run JS in headless mode in response to some event. Added `HeadlessJsTaskEventListener` for modules that are interested in background lifecycle events, and `HeadlessJsTaskContext` that basically extends `ReactContext` without touching it. The react instance is shared with the rest of the app (e.g. activities) through the `ReactNativeHost`.
Reviewed By: astreet
Differential Revision: D3225753
fbshipit-source-id: 2c5e7679636f31e0e7842d8a67aeb95baf47c563
Summary:
This fixes measuring of items in the main axis of a container. Previously items were in a lot of cases measured with UNSPECIFIED instead of AT_MOST. This was to support scrolling containers. The correct way to handle scrolling containers is to instead provide them with their own overflow value to activate this behavior. This is also similar to how the web works.
This is a breaking change. Most of your layouts will continue to function as before however some of them might not. Typically this is due to having a `flex: 1` style where it is currently a no-op due to being measured with an undefined size but after this change it may collapse your component to take zero size due to the implicit `flexBasis: 0` now being correctly treated. Removing the bad `flex: 1` style or changing it to `flexGrow: 1` should solve most if not all layout issues your see after this diff.
Reviewed By: majak
Differential Revision: D3876927
fbshipit-source-id: 81ea1c9d6574dd4564a3333f1b3617cf84b4022f
Summary:
This adds support for `Animated.event` driven natively. This is WIP and would like feedback on how this is implemented.
At the moment, it works by providing a mapping between a view tag, an event name, an event path and an animated value when a view has a prop with a `AnimatedEvent` object. Then we can hook into `EventDispatcher`, check for events that target our view + event name and update the animated value using the event path.
For now it works with the onScroll event but it should be generic enough to work with anything.
Closes https://github.com/facebook/react-native/pull/9253
Differential Revision: D3759844
Pulled By: foghina
fbshipit-source-id: 86989c705847955bd65e6cf5a7d572ec7ccd3eb4
Summary:
The original method getNativeProps in ViewManagerPropertyUpdater.java create more HashMaps and putAll method need to re-hash the key again to avoid conflicts. This pull request pass the map as params to avoid the problem and update ReactPropertyProcessor.java to adapt the change.
Closes https://github.com/facebook/react-native/pull/9916
Differential Revision: D3873152
fbshipit-source-id: 089840e5272265662cdbf58d88580f9203153b69
Summary:
This adds support for sticky headers on Android. The implementation if based primarily on the iOS one (https://github.com/facebook/react-native/blob/master/React/Views/RCTScrollView.m#L272) and adds some stuff that was missing to be able to handle z-index, view clipping, view hierarchy optimization and touch handling properly.
Some notable changes:
- Add `ChildDrawingOrderDelegate` interface to allow changing the `ViewGroup` drawing order using `ViewGroup#getChildDrawingOrder`. This is used to change the content view drawing order to make sure headers are drawn over the other cells. Right now I'm only reversing the drawing order as drawing only the header views last added a lot of complexity especially because of view clipping and I don't think it should cause issues.
- Add `collapsableChildren` prop that works like `collapsable` but applies to every child of the view. This is needed to be able to reference sticky headers by their indices otherwise some subviews can get optimized out and break indexes.
Closes https://github.com/facebook/react-native/pull/9456
Differential Revision: D3827366
Pulled By: fred2028
fbshipit-source-id: d346068734c5b987518794ab23e13914ed13b5c4
Summary:
This adds support for sticky headers on Android. The implementation if based primarily on the iOS one (https://github.com/facebook/react-native/blob/master/React/Views/RCTScrollView.m#L272) and adds some stuff that was missing to be able to handle z-index, view clipping, view hierarchy optimization and touch handling properly.
Some notable changes:
- Add `ChildDrawingOrderDelegate` interface to allow changing the `ViewGroup` drawing order using `ViewGroup#getChildDrawingOrder`. This is used to change the content view drawing order to make sure headers are drawn over the other cells. Right now I'm only reversing the drawing order as drawing only the header views last added a lot of complexity especially because of view clipping and I don't think it should cause issues.
- Add `collapsableChildren` prop that works like `collapsable` but applies to every child of the view. This is needed to be able to reference sticky headers by their indices otherwise some subviews can get optimized out and break indexes.
Closes https://github.com/facebook/react-native/pull/9456
Differential Revision: D3827366
fbshipit-source-id: cab044cfdbe2ccb98e1ecd3e02ed3ceaa253eb78
Summary: Introduce `overflow:scroll` so that scrolling can be implemented without the current overflow:visible hackiness. Currently we use AT_MOST to measure in the cross axis but not in the main axis. This was done to enable scrolling containers where children are not constraint in the main axis by their parent. This caused problems for non-scrolling containers though as it meant that their children cannot be measured correctly in the main axis. Introducing `overflow:scroll` fixes this.
Reviewed By: astreet
Differential Revision: D3855801
fbshipit-source-id: 3c365f9e6ef612fd9d9caaaa8c650e9702176e77
Summary: Introduce `overflow:scroll` so that scrolling can be implemented without the current overflow:visible hackiness. Currently we use AT_MOST to measure in the cross axis but not in the main axis. This was done to enable scrolling containers where children are not constraint in the main axis by their parent. This caused problems for non-scrolling containers though as it meant that their children cannot be measured correctly in the main axis. Introducing `overflow:scroll` fixes this.
Reviewed By: astreet
Differential Revision: D3855801
fbshipit-source-id: 6077b0bcb68fe5ddd4aa22926acab40ff4d83949