Commit Graph

160 Commits

Author SHA1 Message Date
Sam Goldman 0d924dd629 Upgrade to Flow v0.68.0
Reviewed By: gabelevi

Differential Revision: D7310349

fbshipit-source-id: 70d29815dd7912704aec8a015c970be3fafeeba3
2018-03-19 18:31:36 -07:00
Hunkyo Jung 541485c7fe Add inverted prop in SectionListExample
Summary:
This PR adds an option to pass`inverted` prop to SectionListExample in RNTester. FlatListExample already has this option but it's not available in SectionListExample.

Run RNTester app on device or simulator and select SectionListExample. Depending on switching `inverted` option, you can see either inverted list or not.

[GENERAL][ENHANCEMENT][RNTeater] - Add inverted prop to SectionListExample
Closes https://github.com/facebook/react-native/pull/18370

Differential Revision: D7317168

Pulled By: hramos

fbshipit-source-id: c6c212c705e686281f23954775cc3465cce3c8df
2018-03-17 20:23:22 -07:00
Tadeu Valentt 076b1cea35 Prevent show a hidden status bar when opening modals, fix #7474
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!

-->

Closes the old #7474, keeping the status bar hidden when displaying a modal
or dialog, this is accomplished by verifying if the activity status bar is hidden or not.

Added a test to [RNTester](https://github.com/facebook/react-native/tree/master/RNTester), so it can be tested from there:

1. Run [RNTester](https://github.com/facebook/react-native/tree/master/RNTester) project
2. Go to <StatusBar> tests
3. Set `hidden: true` in the *StatusBar hidden* samples
4. Set `modal visible: true` and see the result

Here are some gifs to help see the results:
![fail](https://user-images.githubusercontent.com/1649955/36345378-f443ad7e-1407-11e8-850d-d6317fb34da4.gif)
![success](https://user-images.githubusercontent.com/1649955/36345392-1c590b56-1408-11e8-9244-a2e828f579ab.gif)

none

<!--
Help reviewers and the release process by writing your own release notes

**INTERNAL and MINOR tagged notes will not be included in the next version's final release notes.**

  CATEGORY
[----------]        TYPE
[ CLI      ]   [-------------]      LOCATION
[ DOCS     ]   [ BREAKING    ]   [-------------]
[ GENERAL  ]   [ BUGFIX      ]   [-{Component}-]
[ INTERNAL ]   [ ENHANCEMENT ]   [ {File}      ]
[ IOS      ]   [ FEATURE     ]   [ {Directory} ]   |-----------|
[ ANDROID  ]   [ MINOR       ]   [ {Framework} ] - | {Message} |
[----------]   [-------------]   [-------------]   |-----------|

[ GENERAL  ]   [ BUGFIX      ]   [ [StatusBar] - Prevent show a hidden status bar when opening modals
 EXAMPLES:

 [IOS] [BREAKING] [FlatList] - Change a thing that breaks other things
 [ANDROID] [BUGFIX] [TextInput] - Did a thing to TextInput
 [CLI] [FEATURE] [local-cli/info/info.js] - CLI easier to do things with
 [DOCS] [BUGFIX] [GettingStarted.md] - Accidentally a thing/word
 [GENERAL] [ENHANCEMENT] [Yoga] - Added new yoga thing/position
 [INTERNAL] [FEATURE] [./scripts] - Added thing to script that nobody will see
-->
[ GENERAL  ]   [ BUGFIX      ]   [StatusBar] - Prevent show a hidden status bar when opening modals
Closes https://github.com/facebook/react-native/pull/18004

Differential Revision: D7307564

Pulled By: hramos

fbshipit-source-id: 47e481ead78204865811ddf2ef3d27da77ad8b8f
2018-03-16 16:46:42 -07:00
Peter Argany 139d554c48 Replace js Dimensions with shadow view in InputAccessoryViewExample
Reviewed By: mmmulani

Differential Revision: D7196168

fbshipit-source-id: 031ed5ab24d1075f775ec71e5b78d32e03fe8f6f
2018-03-15 10:14:15 -07:00
Janic Duplessis db061ea8c7 Don't wrap ListEmptyComponent in an extra view
Summary:
A common UI pattern for list empty states is some text/images centered inside the visible part of the list. This is pretty hard to do currently because we wrap ListEmptyComponent with an extra view with no way to style it so we cannot just use `flex: 1` to make it fill the available space.

- Added an example of ListEmptyComponent in the FlatList example in RNTester

Before (no way to make ListEmptyComponent fill the space):
<img width="377" alt="screen shot 2018-03-05 at 5 24 15 pm" src="https://user-images.githubusercontent.com/2677334/37003152-129db3ac-209a-11e8-9600-110f10d57144.png">

After:
<img width="377" alt="screen shot 2018-03-05 at 5 09 20 pm" src="https://user-images.githubusercontent.com/2677334/37002809-e6971178-2098-11e8-8cf7-74bfb2f6a992.png">

- Tested some edge cases like returning null from the ListEmptyComponent

- Tested in an app that uses FlatList + ListEmptyComponent

[GENERAL] [MINOR] [VirtualizedList] - Don't wrap ListEmptyComponent in an extra view
Closes https://github.com/facebook/react-native/pull/18206

Differential Revision: D7266274

Pulled By: sahrens

fbshipit-source-id: 4636d2418474a4c86ac63e5e18a9afc391a518c5
2018-03-13 18:11:31 -07:00
Moti Zilberman 0459e4ffaa Support Image resizeMode=repeat on Android
Summary:
`<Image resizeMode="repeat" />` for Android, matching the iOS implementation (#7968). (Non-goal: changing the component's API for finer-grained control / feature parity with CSS - this would be nice in the future)

As requested in e.g. #14158.

Given https://github.com/facebook/fresco/issues/1575, and lacking the context to follow the specific recommendations in https://github.com/facebook/fresco/issues/1575#issuecomment-267004303, I've opted for a minimal change within RN itself.

It's likely that performance can be improved by offloading this work to Fresco in some clever way; but I'm assuming that the present naive approach is still an improvement over a userland implementation with `onLayout` and multiple `<Image>` instances.

- Picking up on a TODO note in the existing code, I implemented `MultiPostprocessor` to allow arbitrary chaining of Fresco-compatible postprocessors inside `ReactImageView`.
- Rather than extensively refactor `ImageResizeMode`, `ReactImageManager` and `ReactImageView`, I mostly preserved the existing API that maps `resizeMode` values to [`ScaleType`](http://frescolib.org/javadoc/reference/com/facebook/drawee/drawable/ScalingUtils.ScaleType.html) instances, and simply added a second mapping, to [`TileMode`](https://developer.android.com/reference/android/graphics/Shader.TileMode.html).
- To match the iOS rendering exactly for oversized images, I found that scaling with a custom `ScaleType` was required - a kind of combination of `CENTER_INSIDE` and `FIT_START` which Fresco doesn't provide - so I implemented that as `ScaleTypeStartInside`. (This is, frankly, questionable as the default behaviour on iOS to begin with - but I am aiming for parity here)
- `resizeMode="repeat"` is therefore unpacked by the view manager to the effect of:
  ```js
     view.setScaleType(ScaleTypeStartInside.INSTANCE);
     view.setTileMode(Shader.TileMode.REPEAT);
   ```
  And the added postprocessing in the view (in case of a non-`CLAMP` tile mode) consists of waiting for layout, allocating a destination bitmap and painting the source bitmap with the requested tile mode and scale type.

Note that as in https://github.com/facebook/react-native/pull/17398#issue-285235247, I have neither updated nor tested the "Flat" UI implementation - everything compiles but I've taken [this comment](https://github.com/facebook/react-native/issues/12770#issuecomment-294052694) to mean there's no point in trying to wade through it on my own right now; I'm happy to tackle it if given some pointers.

Also, I'm happy to address any code style issues or other feedback; I'm new to this codebase and a very infrequent Android/Java coder.

Tested by enabling the relevant case in RNTester on Android.

| iOS | Android |
|-|-|
| <img src=https://user-images.githubusercontent.com/2246565/34461897-4e12008e-ee2f-11e7-8581-1dc0cc8f2779.png width=300>| <img src=https://user-images.githubusercontent.com/2246565/34461894-40b2c8ec-ee2f-11e7-8a8f-96704f3c8caa.png width=300> |

Docs update: https://github.com/facebook/react-native-website/pull/106

[ANDROID] [FEATURE] [Image] - Implement resizeMode=repeat
Closes https://github.com/facebook/react-native/pull/17404

Reviewed By: achen1

Differential Revision: D7070329

Pulled By: mdvacca

fbshipit-source-id: 6a72fcbdcc7c7c2daf293dc1d8b6728f54ad0249
2018-03-12 16:14:18 -07:00
Eli White a3c07c95ef StyleObj -> DangerouslyImpreciseStyleProp
Summary:
Migrating everything to import from StyleSheet instead of StyleSheetTypes.

Search and replaced
```
import type {StyleObj} from 'StyleSheetTypes';
```
to
```
import type {DangerouslyImpreciseStyleProp} from 'StyleSheet';
```

and then replacing `StyleObj` with `DangerouslyImpreciseStyleProp` and fixing up the remaining flow errors by hand.

Reviewed By: yungsters

Differential Revision: D7184077

fbshipit-source-id: b8dabb9d48038b5a997ab715687300bad57aa9d4
2018-03-07 13:24:20 -08:00
Eli White ee26d9bcb0 Make StyleSheet.create type private
Summary:
This type is being used in many places where a much simpler type is often better. In a real pinch this type can still be accessed as so:

```
function returnsStyleSheet(
): $Call<typeof StyleSheet.create, *> {
  return StyleSheet.create({
    root: {
      background: 'white',
    }
  })
}

returnsStyleSheet().foo // foo doesn't exist
returnsStyleSheet().root // okay
```

Reviewed By: yungsters

Differential Revision: D7178524

fbshipit-source-id: 3c0ed03486ca00f1e287261e402fd47807f1fc3d
2018-03-07 12:16:53 -08:00
Krzysztof Ciombor b7bb2e5745 Add support for Android TV devices
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!

-->

* To be on par with Apple TV support, this makes it possible to run React Native apps on Android TV devices (See also: https://react-native.canny.io/feature-requests/p/android-tv-support)
* These changes also make it possible to navigate through the app using D-PAD buttons that are present on some mobile devices
* Since these changes affect, among others, `ReactRootView.java` and `Touchable.js` code and are closely related to Apple TV implementation, it makes sense for them to be included in the core

 - React native apps can be launched on Android TV devices and properly render their content
 - Navigation is possible using left, right, top, bottom arrows from the remote (or D-PAD)
 - Touchable components can handle D-PAD center button press events and correctly fire their `onPress` handlers
 - Touchable components will receive `onPressIn` and `onPressOut` events and can react to focus/blur changes appropriately (just like on Apple TV)
 - `Platform` constants allow to check if the react-native app is running on TV (`Platform.isTV`)
 - `ScrollView`s behave correctly (same as native implementation) when switching to view outside bounds – that is, the container would scroll such that the newly focused element is fully visible
 - Native "clicking" sounds are played when moving between focusable elements
 - Play/Pause click event is send to `TVEventHandler`
 - Rewind and FastForward events are send to `TVEventHandler`
 - Back button behaves as a normal Android back button
 - Diagonal buttons work correctly on Android TV, e.g. if there is no button directly to the right from the focused one, but there is one to the right but a bit higher/lower it will grab focus
 - Dev menu can be accessed by long pressing fast forward button

A demo showing RNTester app running on Android TV device (Amazon Fire TV Stick) can be found here:
[![RNAndroidTVDemo](http://img.youtube.com/vi/EzIQErHhY20/0.jpg)](http://www.youtube.com/watch?v=EzIQErHhY20)

- `TextInput` will not work on Android TV devices. There's an issue with native `ReactEditText` implementation that prevents it from receiving focus. This makes it impossible to navigate to `TextInput`.
This will be fixed next, but will be included in a separate Pull Request
- ~Overlay permissions cannot be granted on Android TV devices running Android version >= 6.0
This is because the overlay permission can only be granted by firing an Intent to open settings page (`ACTION_MANAGE_OVERLAY_PERMISSION`). Since this page does not exist on TV devices the permission cannot be requested. This will make the app crash when trying to open dev menu (⌘+M) or displaying a redbox error.
Note: This does not affect devices running Android version < 6.0 (for example Amazon Fire TV Stick)~
This is now fixed by: https://github.com/facebook/react-native/pull/16596

* Launch the RNTester app on Android TV device.
  * Ensure it launches without a crash
  * Ensure basic navigation is possible
  * Ensure Touchable components can receive select events
* Ensure the changes do not break current Android and iOS mobile devices functionality.
* Ensure the changes do not break current Apple TV functionality.

[RNAndroidTVDemo video](http://img.youtube.com/vi/EzIQErHhY20/0.jpg)

* Added `ReactAndroidTVViewManager` that handles TV `KeyEvent`s and dispatches events to JS - This is the core that enables basic navigation functionality on Android TV devices
* Following the above change we copy `TVEventHandler.ios.js` into `TVEventHandler.android.js` to enable JS to pick up those native navigation events and dispatch them further to subscribed views. (Note: We do not have a native `TVNavigationEventEmitter` implementation on Android, thus this file is slightly modified, e.g. it does pass `null` to `NativeEventEmitter` constructor)
* Added `uiMode` to `AndroidInfoModule`. (**Note**: This required changing `extends BaseJavaModule` to `extends ReactContextBaseJavaModule` to be able to use `getSystemService` which requires `Context` instance!
* Added `isTV` constants to both `Platform.ios.js` (keeping the deprecated `isTVOS` as well) and `Platform.android.js`
* Changed condition check on `Touchable.js` to use the newly added `isTV` flag to properly handle TV navigation events on Android as well
* Added `LEANBACK_LAUNCHER` to `RNTester` `intent-filter` so that it is possible to launch it on Android TV devices.
* See also a PR to `react-native-website` repo with updated docs for Android TV: https://github.com/facebook/react-native-website/pull/59

 - [ ] Fix `TextInput` components handling by allowing them to be focused and making a proper navigation between them (and/or other components) possible. One thing to note here that the default behavior to immediately open software keyboard when focused on `TextInput` field will need to be adjusted on Android TV as well)
 - [x] Fix overlay permissions issue by changing the way redbox/dev menu are displayed (see: https://github.com/facebook/react-native/pull/16596)
 - [ ] Adjust placement of TV-related files (e.g. the `TVEventHandler.js` file is placed inside `AppleTV` directory which is not accurate, since it does handle Android TV events as well)

Previous discussion: https://github.com/SoftwareMansion/react-native/pull/1
<!--
Help reviewers and the release process by writing your own release notes

**INTERNAL and MINOR tagged notes will not be included in the next version's final release notes.**

  CATEGORY
[----------]        TYPE
[ CLI      ]   [-------------]      LOCATION
[ DOCS     ]   [ BREAKING    ]   [-------------]
[ GENERAl  ]   [ BUGFIX      ]   [-{Component}-]
[ INTERNAL ]   [ ENHANCEMENT ]   [ {File}      ]
[ IOS      ]   [ FEATURE     ]   [ {Directory} ]   |-----------|
[ ANDROID  ]   [ MINOR       ]   [ {Framework} ] - | {Message} |
[----------]   [-------------]   [-------------]   |-----------|

[CATEGORY] [TYPE] [LOCATION] - MESSAGE

 EXAMPLES:

 [IOS] [BREAKING] [FlatList] - Change a thing that breaks other things
 [ANDROID] [BUGFIX] [TextInput] - Did a thing to TextInput
 [CLI] [FEATURE] [local-cli/info/info.js] - CLI easier to do things with
 [DOCS] [BUGFIX] [GettingStarted.md] - Accidentally a thing/word
 [GENERAL] [ENHANCEMENT] [Yoga] - Added new yoga thing/position
 [INTERNAL] [FEATURE] [./scripts] - Added thing to script that nobody will see
-->

[ANDROID] [FEATURE] [TV] - Added support for Android TV devices
Closes https://github.com/facebook/react-native/pull/16500

Differential Revision: D6536847

Pulled By: hramos

fbshipit-source-id: 17bbb11e8583b97f195ced5fd9762f8902fb8a3d
2018-03-06 10:47:02 -08:00
Janic Duplessis 9f239d7914 Use react.gradle from repo root instead of copy in RNTester
Summary:
RNTester used a copy of the main react.gradle file instead of the real one. Recent changes to the real file caused builds to fail with older gradle versions but was not caught by CI because it wasn't using that file for RNTester. That copy of react.gradle is just a leftover from when projects included a copy instead of importing the one in RN directly.

Note: CI WILL fail with this PR, if we have trouble landing this I can add the revert in this commit too but wanted to keep it as 2 separate commits.

Tested that building RNTester actually fails now that it uses react.gradle with recent changes, then tested that is builds properly when reverting d16ff3bd8b.

[INTERNAL] [MINOR] [RNTester] - Use react.gradle from repo root instead of copy in RNTester
Closes https://github.com/facebook/react-native/pull/18188

Differential Revision: D7155179

Pulled By: hramos

fbshipit-source-id: 15b461a63b841bf807e7d11ba3ead005ca5e33b0
2018-03-05 11:03:44 -08:00
Kevin Gozali c20e0f94fe workaround android-only js module resolution issue
Summary: for some reason metro was not able to find js module with just .android.js variant. To workaround some build issue, added an empty .ios.js variant

Reviewed By: mdvacca

Differential Revision: D7115360

fbshipit-source-id: 40b95cf2efc4d3d599f39b88813469b6d78e7b48
2018-02-28 19:44:58 -08:00
Peter Argany 84ef7bc372 Added InputAccessoryView demo to RNTester [2/N]
Summary:
This is an example showing how to use an InputAccessoryView to build an iMessage-like sticky text input

https://youtu.be/89PGsSqtmQU

Reviewed By: sahrens

Differential Revision: D7048456

fbshipit-source-id: 90314a85f3662c2b21aababe2dd46ea5e406604a
2018-02-27 17:56:48 -08:00
Moti Zilberman 5898817fc1 Implement letterSpacing on Android >= 5.0
Summary:
`letterSpacing` is completely missing from RN Android at the moment.

I've reviewed the `letterSpacing` implementations in #13199, #13877 and #16801 (that all seem to have stalled) and managed to put together an improved one based on #13199, updated to merge cleanly post 6114f863c3, that resolves the [issues](https://github.com/facebook/react-native/pull/13199#issuecomment-354568863) I've identified with that code.

I believe this is the closest PR yet to a correct implementation of this feature, with a few caveats:

- As with the other PRs, this only works on Android >= 5.0 (silently falling back to no letter spacing on older versions). Is this acceptable for a RN feature, in general? Would a dev mode warning be desirable?
- The other PRs seem to have explored the space of potential solutions to the layout issue ([Android renders space _around_ glyphs](https://issuetracker.google.com/issues/37079859), iOS to the _right_ of each one) and come up empty, so I've opted to merely document the difference.
- I have neither updated nor tested the "Flat" UI implementation - everything compiles but I've taken [this comment](https://github.com/facebook/react-native/issues/12770#issuecomment-294052694) to mean there's no point in trying to wade through it on my own right now; I'm happy to tackle it if given some pointers.
- The implementation in `ReactEditText` is only there to handle the placeholder text, as `ReactBaseTextShadowNode` already affects the input control's contents correctly.
  - I'm not sure whether `<TextInput>` is meant to respect `allowFontScaling`; I've taken my cue here from `ReactTextInputManager.setFontSize()`, and used the same units (SP) to interpret the value in `ReactEditText.setLetterSpacingPt()`.
  - I'm not sure whether `<TextInput>` is even meant to support `letterSpacing` - it doesn't actually work on iOS. I'm not going to be able to handle the Objective-C side of this, not as part of this PR at least.
- I have not added unit tests to `ReactTextTest` - is this desirable? I see that some other props such as `lineHeight` aren't covered there (unless I'm not looking in the right place).
- Overall, I'm new to this codebase, so it's likely I've missed something not mentioned here.

Note comment re: unit tests above; RNTester screenshots follow.

| iOS (existing functionality, amended test) | Android (new functionality & test) |
| - | - |
| <img src=https://user-images.githubusercontent.com/2246565/34458459-c8d59498-edcb-11e7-8c8f-e7426f723886.png width=300> | <img src=https://user-images.githubusercontent.com/2246565/34458473-2a1ca368-edcc-11e7-9ce6-30c6d3a48660.png width=300> |

| iOS _(not implemented, test not in this branch)_ | Android (new functionality & test) |
| - | - |
| <img src=https://user-images.githubusercontent.com/2246565/34458481-6c60a36e-edcc-11e7-9af5-9734dd722ced.png width=300> | <img src=https://user-images.githubusercontent.com/2246565/34458486-8b3cdcf8-edcc-11e7-974b-25c6085fa674.png width=300> |

| iOS _(not implemented, test not in this branch)_ | Android (new functionality & test) |
| - | - |
| <img src=https://user-images.githubusercontent.com/2246565/34458492-d69a77be-edcc-11e7-896f-21212621dbee.png width=300> | <img src=https://user-images.githubusercontent.com/2246565/34458490-b3a1139e-edcc-11e7-88c8-79d4430d1514.png width=300> |

https://github.com/facebook/react-native-website/pull/105 - this docs PR is edited slightly from what's in `TextStylePropTypes` here; happy to align either one to the other after a review.

[ANDROID] [FEATURE] [Text] - Implemented letterSpacing
Closes https://github.com/facebook/react-native/pull/17398

Reviewed By: mdvacca

Differential Revision: D6837718

Pulled By: hramos

fbshipit-source-id: 5c9d49e9cf4af6457b636416ce5fe15315aab72c
2018-02-27 14:53:58 -08:00
Julien K 6c353fd7e9 onPress animation with magnification
Summary:
Related to: #15454

Motivation: Improve tvOS feeling for TouchableHighlight

![changewithaniamtion](https://user-images.githubusercontent.com/7658664/29193477-b99b4a10-7e25-11e7-8b31-e0e4ca9d7720.gif)

- When you select the button he is focus and the underlay is show
- When you press the button, there is an animation, but after the animation, the focus is on the button and the underlay is show

Play with tvParallaxProperties on tvOS, test with and without patch just to see the actual behaviour
```
			<TouchableHighlight
						tvParallaxProperties={{
							enabled: true,
							shiftDistanceX: 0,
							shiftDistanceY: 0,
							tiltAngle: 0,
							magnification: 1.1,
                                                        pressMagnification: 1.0,
							pressDuration: 0.3,
						}}
						underlayColor="black"
						onShowUnderlay={() => (console.log("onShowUnderlay")}
						onHideUnderlay={() =>  (console.log("onHideUnderlay")}
						onPress={() =>  (console.log("onPress")}
					>
						<Image
							style={styles.image}
							source={ uri: 'https://www.facebook.com/images/fb_icon_325x325.png' }
						/>
					</TouchableHighlight>
```
Closes https://github.com/facebook/react-native/pull/15455

Differential Revision: D6887437

Pulled By: hramos

fbshipit-source-id: e18b695068bc99643ba4006fb3f39215b38a74c1
2018-02-27 13:10:02 -08:00
Peter Argany 38197c8230 Support Input Accessory View (iOS Only) [1/N]
Reviewed By: mmmulani

Differential Revision: D6886573

fbshipit-source-id: 71e1f812b1cc1698e4380211a6cedd59011b5495
2018-02-27 11:09:30 -08:00
Valentin Shergin a534672e13 Fixed problem in Text measurent on iOS
Summary: See the comment it code.

Reviewed By: mmmulani

Differential Revision: D7074168

fbshipit-source-id: e6eda9a47552142ccb0ba8e7bd9a103b0cb4f9f9
2018-02-25 09:37:38 -08:00
Mats Byrkeland edb6ca72fd Fix ESLint warnings using 'yarn lint --fix'
Summary:
Hi! I would like to contribute to React Native, and I am just starting out. I forked the repo and found that it has quite a lot of ESLint warnings – many of which were automatically fixable. This PR is simply the result of running `yarn lint --fix` from the root folder.

Most changes are removing trailing spaces from comments.

Haven't really done any manual testing, since I haven't done any code changes manually. `yarn test` runs fine, `yarn flow` runs fine, `yarn prettier` is satisfied.

N/A

[INTERNAL][MINOR][] - Fix ESLint warnings
Closes https://github.com/facebook/react-native/pull/18047

Differential Revision: D7054948

Pulled By: hramos

fbshipit-source-id: d53e692698d1687de5821c3fb5cdb76a5e03b71e
2018-02-22 07:23:17 -08:00
Caleb Meredith da3424c929 @allow-large-files Upgrade xplat/js to Flow v0.66
Reviewed By: gabelevi

Differential Revision: D7016717

fbshipit-source-id: 2bd2fd67074ba5d405ecd63a1aeb37354f8634c9
2018-02-16 20:24:57 -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
Krzysztof Magiera b48f7e5605 Support for animated tracking in native driver
Summary:
This PR adds support for Animated tracking to Animated Native Driver implementation on Android and iOS.

Animated tracking allows for animation to be started with a "dynamic" end value. Instead of passing a fixed number as end value we can pass a reference to another Animated.Value. Then when that value changes, the animation will be reconfigured to drive the animation to the new destination point. What is important is that animation will keep its state in the process of updating "toValue". That is if it is a spring animation and the end value changes while the previous animation still hasn't settled the new animation will start from the current position and will inherit current velocity. This makes end value transitions very smooth.

Animated tracking is available in JS implementation of Animated library but not in the native implementation. Therefore until now, it wasn't possible to utilize native driver when using animated tracking. Offloading animation from JS thread turns out to be crucial for gesture driven animations. This PR is a step forward towards feature parity between JS and native implementations of Animated.

Here is a link to example video that shows how tracking can be used to implement chat heads effect: https://twitter.com/kzzzf/status/958362032650244101

In addition this PR fixes an issue with frames animation driver on Android that because of rounding issues was taking one extra frame to start. Because of that change I had to update a number of Android unit tests that were relying on that behavior and running that one additional animation step prior to performing checks.

As a part of this PR I'm adding three unit tests for each of the platforms that verifies most important aspects of this implementation. Please refer to the code and look at the test cases top level comments to learn what they do.

I'm also adding a section to "Native Animated Example" screen in RNTester app that provides a test case for tracking. In the example we have blue square that fallows the red line drawn on screen. Line uses Animated.Value for it's position while square is connected via tracking spring animation to that value. So it is ought to follow the line. When user taps in the area surrounding the button new position for the red line is selected at random and the value updates. Then we can watch blue screen animate to that position.

You can also refer to this video that I use to demonstrate how tracking can be linked with native gesture events using react-native-gesture-handler lib: https://twitter.com/kzzzf/status/958362032650244101

[GENERAL][FEATURE][Native Animated] - Added support for animated tracking to native driver. Now you can use `useNativeDriver` flag with animations that track other Animated.Values
Closes https://github.com/facebook/react-native/pull/17896

Differential Revision: D6974170

Pulled By: hramos

fbshipit-source-id: 50e918b36ee10f80c1deb866c955661d4cc2619b
2018-02-16 12:10:01 -08:00
Valentin Shergin 7630a614e4 Demo illustrated `base-line` metric exposure
Summary:
A demo illustrated `base-line` metric exposure to layout system was added to RNTester.
And currently it shows that we don't support it at all.

https://cl.ly/1F0B0D430U3e

Reviewed By: sahrens

Differential Revision: D6957056

fbshipit-source-id: 28776300fc8e11950ac5ba1a5416f68d31d4e9fb
2018-02-15 17:46:41 -08:00
Andres Suarez 59401f89c1 Fold .eslintrc's into the root eslintrc
Reviewed By: TheSavior

Differential Revision: D6997050

fbshipit-source-id: 81e45d24343cca8336adb0de43bd766899ff03b6
2018-02-15 07:53:52 -08:00
Evan J Brunner 03e6d3efb4 RNTester http_server send cookie fix
Summary:
Signed-off-by: Evan J Brunner <ej3@appitto.me>

<!--
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!

-->

Motivation can be found in #17899

This `RNTester/js/http_test_server.js` is part of a internal websocket test suite / devtool.

Can be tested with `curl -D - localhost:5556` observing that the `Set-Cookie: wstest=OK; Path=\` header is present, and the service throws no exceptions.. etc

[INTERNAL][MINOR][./RNTester/js/http_test_server.js] - fixed set cookie with connect framework
<!--
Help reviewers and the release process by writing your own release notes

**INTERNAL and MINOR tagged notes will not be included in the next version's final release notes.**

  CATEGORY
[----------]        TYPE
[ CLI      ]   [-------------]      LOCATION
[ DOCS     ]   [ BREAKING    ]   [-------------]
[ GENERAL  ]   [ BUGFIX      ]   [-{Component}-]
[ INTERNAL ]   [ ENHANCEMENT ]   [ {File}      ]
[ IOS      ]   [ FEATURE     ]   [ {Directory} ]   |-----------|
[ ANDROID  ]   [ MINOR       ]   [ {Framework} ] - | {Message} |
[----------]   [-------------]   [-------------]   |-----------|

[CATEGORY] [TYPE] [LOCATION] - MESSAGE

 EXAMPLES:

 [IOS] [BREAKING] [FlatList] - Change a thing that breaks other things
 [ANDROID] [BUGFIX] [TextInput] - Did a thing to TextInput
 [CLI] [FEATURE] [local-cli/info/info.js] - CLI easier to do things with
 [DOCS] [BUGFIX] [GettingStarted.md] - Accidentally a thing/word
 [GENERAL] [ENHANCEMENT] [Yoga] - Added new yoga thing/position
 [INTERNAL] [FEATURE] [./scripts] - Added thing to script that nobody will see
-->
Closes https://github.com/facebook/react-native/pull/17900

Differential Revision: D6977087

Pulled By: hramos

fbshipit-source-id: af6205343fccf69c57e0c26a85a5b04d61288a23
2018-02-13 10:46:53 -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
Brian Vaughn 6f007e8957 Ran rename-unsafe-lifecycles codemod on xplat/js
Reviewed By: trueadm

Differential Revision: D6889214

fbshipit-source-id: e815cda4b09f3650ae3b0b9a44ae6f5fcb48fe25
2018-02-08 10:58:31 -08:00
Taras Tsugrii 79a63d040f Skylarkify RN defs.
Reviewed By: adamjernst

Differential Revision: D6934209

fbshipit-source-id: 59f50b739482a53473c157f9e0183024dc88dc67
2018-02-08 09:47:28 -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
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
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
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
Moti Zilberman be7037fd8e Test and document Image resizeMode=center on iOS
Summary:
`<Image resizeMode="center">` already works on iOS (implemented in #8792), but is neither tested nor documented the way the other `resizeMode` values are.

This PR primarily enables the relevant RNTester case on iOS, and secondarily copies over the doc comment from `Image.android.js` to `Image.ios.js`. A PR to `react-native-website` will follow shortly and it is there I will try and revise the wording a bit.

Updated RNTester screenshot (iOS):

<img src=https://user-images.githubusercontent.com/2246565/35470720-44b38282-0357-11e8-941c-1b3c5a1b2f3b.png width=300>

react-native-website PR coming soon.

[IOS] [MINOR] [Image] - Include resizeMode=center in RNTester
Closes https://github.com/facebook/react-native/pull/17759

Differential Revision: D6829051

Pulled By: hramos

fbshipit-source-id: c6e0000a75765e8bf3a1d0306aaafad002b14a58
2018-01-27 11:45:12 -08:00
Satyajit Sahoo be56a3efee Implement Blob support for XMLHttpRequest
Summary:
This PR is a followup to https://github.com/facebook/react-native/pull/11417 and should be merged after that one is merged.

  1. Add support for creating blobs from strings, not just other blobs
  1. Add the `File` constructor which is a superset of `Blob`
  1. Add the `FileReader` API which can be used to read blobs as strings or data url (base64)
  1. Add support for uploading and downloading blobs via `XMLHttpRequest` and `fetch`
  1. Add ability to download local files on Android so you can do `fetch(uri).then(res => res.blob())` to get a blob for a local file (iOS already supported this)

  1. Clone the repo https://github.com/expo/react-native-blob-test
  1. Change the `package.json` and update `react-native` dependency to point to this branch, then run `npm install`
  1. Run the `server.js` file with `node server.js`
  1. Open the `index.common.js` file and replace `localhost` with your computer's IP address
  1. Start the packager with `yarn start` and run the app on your device

If everything went well, all tests should pass, and you should see a screen like this:

![screen shot 2017-06-08 at 7 53 08 pm](https://user-images.githubusercontent.com/1174278/26936407-435bbce2-4c8c-11e7-9ae3-eb104e46961e.png)!

Pull to rerun all tests or tap on specific test to re-run it

  [GENERAL] [FEATURE] [Blob] - Implement blob support for XMLHttpRequest
Closes https://github.com/facebook/react-native/pull/11573

Reviewed By: shergin

Differential Revision: D6082054

Pulled By: hramos

fbshipit-source-id: cc9c174fdefdfaf6e5d9fd7b300120a01a50e8c1
2018-01-26 09:17:11 -08:00
Michael Lee 869866cc5c Continue wrapping functions as we prepare for skylark
Differential Revision: D6808010

fbshipit-source-id: f24e71558baed2c2da319e20e0faf66858eb27d5
2018-01-25 09:30:00 -08:00
Hogyun Yu  (aka Philographer) b9d058a05c Remove references to Travis
Summary:
react-native project is migrated travis to circleCI.
but the document has some leavings.

Only Docs Edited

https://github.com/facebook/react-native/pull/16354
https://github.com/facebook/react-native/pull/16364

[ DOCS] Remove references to Travis
changed Releases.md
changed RNTester/RNTesterIntegrationTests/RNTesterSnapshotTests.m
changed scripts/android-e2e-test.js
Closes https://github.com/facebook/react-native/pull/17733

Differential Revision: D6806336

Pulled By: shergin

fbshipit-source-id: 22d21995d718a89bb831f75ed2ff6074dd22c6fe
2018-01-24 22:18:34 -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
Jonathan Kim 4f2cc42a2d Make xplat react native files buildable
Reviewed By: mzlee

Differential Revision: D6605611

fbshipit-source-id: baa33947319a27b95020924d177a9398a276dabe
2018-01-21 22:05:05 -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 6bb8617f3a Exposing `setDirtiedFunc` as plain C function YGNodeSetDirtiedFunc
Summary: Trivial. Those lines were lost during rebasing of the original commit.

Reviewed By: priteshrnandgaonkar

Differential Revision: D6717696

fbshipit-source-id: a5dce25427c8977352b3ae7ea01e546a540e0c13
2018-01-15 16:06:11 -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
Spencer Ahrens b815eb59be Prettier ScrollViewExample
Reviewed By: TheSavior, shergin

Differential Revision: D6712726

fbshipit-source-id: 30d8bcdcf6a1cbf1c05048462c7b8444b4ea5ede
2018-01-12 19:16:00 -08:00
David Vacca b2848a54b0 Adding support to float values for Android snapToInterval
Reviewed By: fkgozali

Differential Revision: D6684529

fbshipit-source-id: 51efa0a2d38acf4134bb824c462973e5c6bdf17a
2018-01-09 12:32:53 -08:00
Eli White 11a495cb32 Fixing eslint-comments warnings
Reviewed By: yungsters

Differential Revision: D6678252

fbshipit-source-id: ee93b7ee52520b750ca11fcc625cccf3cd82d075
2018-01-08 17:04:29 -08:00
glevi@fb.com 6b95c4fb14 @allow-large-files [Flow] Upgrade xplat/js to flow v0.63
Reviewed By: samwgoldman

Differential Revision: D6675320

fbshipit-source-id: 85575a6f30a50a3c40c6b46ba36f8cd33c091b1d
2018-01-08 12:49:53 -08:00
Josh Hargreaves c9ff0bc212 Implement onKeyPress Android
Summary:
This implements onKeyPress for Android on TextInputs and addresses https://github.com/facebook/react-native/issues/1882.
**N.B. that this PR has not yet addressed hardware keyboard inputs**, but doing will be fairly trivial. The main challenge was doing this for soft keyboard inputs.

I've tried to match the style as much as I could. Will happily make any suggested edits be they architectural or stylistic design (edit: and of course implementation), but hopefully this is a good first pass :).
I think important to test this on the most popular keyboard types; maybe different languages too.
I have not yet added tests to test implementation, but will be happy to do that also.

- Build & run RNTester project for Android and open TextInput.
- Enter keys into 'event handling' TextInput.
- Verify that keys you enter appear in onKeyPress below the text input
- Test with autocorrect off, on same input and validate that results are the same.

Below is a gif of PR in action.
![onkeypressandroid](https://user-images.githubusercontent.com/1807207/27512892-3f95c098-5949-11e7-9364-3ce9437f7bb9.gif)
Closes https://github.com/facebook/react-native/pull/14720

Differential Revision: D6661592

Pulled By: hramos

fbshipit-source-id: 5d53772dc2d127b002ea5fb84fa992934eb65a42
2018-01-04 12:51:38 -08:00
Jimmy Zhuang ddd65f1ba9 Support snapToInterval for horizontal scrollview on Android
Summary:
`snapToInterval` is available on iOS but on android yet. This PR is to add support for `snapToInterval` on android.

Example:

![android_snap](https://cloud.githubusercontent.com/assets/1699429/19086983/39d3ee1c-8a25-11e6-9c84-20f25a751f32.gif)

TO: lelandrichardson spikebrehm
Closes https://github.com/facebook/react-native/pull/10242

Differential Revision: D4168527

fbshipit-source-id: de3dd9ac5d9e0fddfce5e5bc0aa6a4f33f1e30b3
2018-01-03 10:33:07 -08:00
Pieter De Baets a0ff8c7706 Fix ReactLegacy and delete RCTViewControllerProtocol
Summary:
It's always bothered that we have this protocol and I figured it could just be merged with RCTWrapperViewController.
Closes https://github.com/facebook/react-native/pull/17290

Reviewed By: mmmulani

Differential Revision: D6611544

Pulled By: javache

fbshipit-source-id: a50b9d5adbeb2c48dbadbbfc1c77ccf6d1aae144
2017-12-20 15:20:00 -08:00
Valentin Shergin 8c8944c10f Removing `inherited background color` optimization from RCTText
Summary:
This is a long story. Awhile ago awesome Nick Lockwood (Hey Nick!) introduced a special optimization for ReactNative rendering layer called "inherited background color".
He described this idea in D2811031:
>>>
Blending semitransparent pixels against their background is fairly a fairly expensive operation on mobile GPUs. To reduce blending, React Native has a system called "background color propagation", where the background color of parent views is automatically inherited by child views unless explicitly overridden. This means that translucent pixels can be blended directly against a known background color, avoiding the need to do this dynamically on the GPU.
In practice, this is only useful for views that do their own drawing, which is basically just <Image/> and <Text/> components, and for image components it only really matters when the image has an alpha component.
The automatic background propagation is a bit of a hack, and often does the wrong thing - for example if a view overflows its bounds, or if it overlaps a sibling, the background color will often be incorrect and need to be manually disabled. Because the only place that it provides a significant performance benefit is for text, this diff disables the behavior for everything except <Text/> nodes. It might still be useful for <Image/> nodes too, but looking through the examples in UIExplorer, the number of places where it does the wrong thing for images outnumbers the cases where it provides significant reduction in blending.

However. I think it is time to remove it. Why? There are several reasons:

* It drastically complicates rendering layer. DRASTICALLY. In many many unrelated places (try search for "backgroundColor"!);
* This mechanism is totally non-conceptual to RN and it prevents us to implement some new possible render optimization that we plan to do;
* This adopted only by two components now: Text and ART;
* This is not a significant performance drain anymore; from iOS 6 even UILabel has clear background color by default.
* I doubt that it even works now because `drawRect:` in Text component does not call super method.

So, this diff just turns this feature off for Text. If all performance metrics are neutral, I will delete this mechanism.
Peace.

Reviewed By: sahrens

Differential Revision: D6564199

fbshipit-source-id: 70524fdd955ca32bbf86d2d1ff5e73316b791219
2017-12-15 12:31:58 -08:00
Yujie Liu 2fecbf6171 Add RCTLibraryPathForURL in RCTUtil
Reviewed By: fromcelticpark

Differential Revision: D6445626

fbshipit-source-id: aa37c87f019eea85d76365b6be919adfafc3c27a
2017-12-14 14:31:50 -08:00