Commit Graph
283 Commits
Author SHA1 Message Date
Paige Sun a7c026e667 Remove unused Fabric image instrumentation
Summary:
Remove the older implementation of image instrumentation in Fabric by removing, RCTImageInstrumentationProxy, ImageInstrumentation from ImageRequest, and trackURLImageContentDidSetForRequest from RCTImageLoaderWithAttributionProtocol.

Changelog: [RN][Fabric][Image] Remove unused Fabric image instrumentation

Reviewed By: fkgozali

Differential Revision: D23990606

fbshipit-source-id: 004d04025d031af11377a73e5bfb64b1e0449962
2020-09-29 14:19:09 -07:00
Samuel Susla 5ccb5f5b80 Fix dismissal animation of Modal Component
Summary:
Changelog: [Internal]

Fabric removes components bottom up (from leafs to the root).
This means that by the time Fabric hides Modal, it has no content and therefore it appears as if Modal disappears without Animation.

To fix this, we snapshot contents of the Modal before any of its contents are removed.

Reviewed By: shergin

Differential Revision: D23976244

fbshipit-source-id: 01c13b74e97f82816e8946fd9d1add1db10340b1
2020-09-29 06:44:25 -07:00
simek 2160377574 remove most of tvOS remnants from the code (#29407)
Summary:
Refs: [0.62 release](https://reactnative.dev/blog/#moving-apple-tv-to-react-native-tvos), https://github.com/facebook/react-native/issues/28706, https://github.com/facebook/react-native/issues/28743, https://github.com/facebook/react-native/issues/29018

This PR removes most of the tvOS remnants in the code. Most of the changes are related to the tvOS platform removal from `.podspec` files, tvOS specific conditionals removal (Obj-C + JS) or tvOS CI/testing pipeline related code.

In addition to the changes listed above I have removed the deprecated `Platform.isTVOS` method. I'm not sure how `Platform.isTV` method is correlated with Android TV devices support which is technically not deprecated in the core so I left this method untouched for now.

## Changelog

<!-- Help reviewers and the release process by writing your own changelog entry. For an example, see:
https://github.com/facebook/react-native/wiki/Changelog
-->

* **[Internal] [Removed]** - remove most of tvOS remnants from the code:
  * `TVEventHandler`, `TVTouchable`, `RCTTVView`, `RCTTVRemoteHandler` and `RCTTVNavigationEventEmitter`
* **[Internal] [Removed]** - remove `TARGET_TV_OS` flag and all the usages
* **[iOS] [Removed]** - remove deprecated `Platform.isTVOS` method
* **[iOS] [Removed]** - remove deprecated and TV related props from View:
  * `isTVSelectable`, `hasTVPreferredFocus` and `tvParallaxProperties`
* **[iOS] [Removed]** - remove `BackHandler` utility implementation

Pull Request resolved: https://github.com/facebook/react-native/pull/29407

Test Plan: Local tests (and iOS CI run) do not yield any errors, but I'm not sure how the CI pipeline would react to those changes. That is the reason why this PR is being posted as Draft. Some tweaks and code adjustment could be required.

Reviewed By: PeteTheHeat

Differential Revision: D22619441

Pulled By: shergin

fbshipit-source-id: 9aaf3840c5e8bd469c2cfcfa7c5b441ef71b30b6
2020-09-28 21:26:41 -07:00
Samuel Susla e5006b3436 Fix slider's initial value
Summary:
Changelog: [Internal]

value needs to be set after minimum and maximum, otherwise it gets pinned to previous minimum/maximum.

Default minimum is 0 and maximum is 1. If we set value to 20 and maximum to 50, previously the value would get pinned to 1 (maximum value).

See [Apple Docs](https://developer.apple.com/documentation/uikit/uislider/1621346-value?language=objc) for more.

Reviewed By: JoshuaGross

Differential Revision: D23903545

fbshipit-source-id: 8e9dd49ced79d43b9591c7d24de59b9eaff5bdfd
2020-09-28 03:15:12 -07:00
Paige Sun e2fd9d4f22 Group accessible views using the view hierarchy
Summary: In iOS when a parent UIView returns YES on [shouldGroupAccessibilityChildren](https://developer.apple.com/documentation/objectivec/nsobject/1615143-shouldgroupaccessibilitychildren), VoiceOver groups together the accessible children of the parent view, regardless of their position on screen. In iOS this defaults to NO.

Reviewed By: sammy-SC

Differential Revision: D23844265

fbshipit-source-id: eb99bf0873ccfd9fb196f8f7b6eafe055f6ae810
2020-09-25 15:55:59 -07:00
Samuel Susla 371430d7eb Fix rounding in Slider component
Summary:
Changelog: [Internal]

There was a typo in condition. We need to be comparing step prop and not value. The same condition is implemented in Paper.

Reviewed By: JoshuaGross

Differential Revision: D23903493

fbshipit-source-id: 37506d0fac63f624332041602489ab1cf378bfcc
2020-09-24 09:47:44 -07:00
Samuel Susla c907202d2b Fix touch handling in bridged paper components
Summary:
Changelog: [internal]

If view was bridged from Paper, hit testing would return Paper view which doesn't have reference to Fabric's event emitter.
To fix this, if the bridged view is returned from hit testing, it is swapped with interop view which has reference to event emitter.

Reviewed By: shergin

Differential Revision: D23840054

fbshipit-source-id: d4aa4ee8da4e1da80d2e2b69b79ed82d726f04e3
2020-09-24 01:07:23 -07:00
Valentin Shergin d3bb76b8b6 Fabric: Using RCTUIColorFromSharedColor everywhere
Summary:
Even though we have wonderful helper functions converting SharedColor to UIColor and CGColorRef, in many places we still use some hardcoded things. This diff fixes that; it will be important for the next diff.

Changelog: [Internal] Fabric-specific internal change.

Reviewed By: JoshuaGross

Differential Revision: D23753508

fbshipit-source-id: 09d280b132266252753526c2735ab3e41b96c8d5
2020-09-17 11:12:28 -07:00
Valentin Shergin f2ca6f568e Fabric: Removing RCTCGColorRefUnretainedFromSharedColor()
Summary:
This diff removes `RCTCGColorRefUnretainedFromSharedColor` function because it's not compatible with future changes we plan to make.
Converting SharedColor to unretained CGColorRef is actually quite dangerous because... it's an unowned pointer.

Reviewed By: JoshuaGross

Differential Revision: D23753509

fbshipit-source-id: df030ade69b63cbb872d6bdbde51575eedc6a4a6
2020-09-17 11:12:28 -07:00
Valentin Shergin 2103839525 Fabric: Optimized hit-testing
Summary:
An experiment where we use `LayoutMetrics::overflowInset` to optimize performance of hit-testing algorithm.
In my measurements enabling this feature drastically (2x) reduced amount of calls to `hitTest:withEvent:` method.

Reviewed By: sammy-SC

Differential Revision: D23669091

fbshipit-source-id: ac6dadc90b6a2fbb45e41e0d4a113bd5ae8f1218
2020-09-15 22:29:30 -07:00
Paige Sun acda299453 6/6 Log image-rendered for Fabric image logging
Reviewed By: fkgozali

Differential Revision: D23450649

fbshipit-source-id: 58265a2c7855a2f4371d68637f09a07921821adf
2020-09-11 15:09:12 -07:00
Paige Sun 24ba03ccae 4/6 Log view-appear and view-disappear for Fabric image logging
Reviewed By: fkgozali

Differential Revision: D23447863

fbshipit-source-id: db16d97034a8d4ba6fcd08da5068039450f3c57b
2020-09-11 15:09:12 -07:00
Paige Sun 13759f192d 3/6 Add IGviewpoint for image visibility callbacks
Summary: Changelog: [Internal] Add IGviewpoint to get image visibility callbacks for when an UIImageView is in or out of view

Reviewed By: fkgozali

Differential Revision: D23428528

fbshipit-source-id: 87e4cee8fbe3c6b7da5153f87bbb530b2f990d96
2020-09-11 15:09:12 -07:00
Samuel Susla 67af6e54fc Fix removal for nested legacy interop layer
Summary:
Changelog: [Internal]

In https://fburl.com/diffusion/3705cj0i we assert that view which is about to be recycled, has no superview.
This is a problem in Legacy interop layer which is nested within another interop layer. This originally wasn't considered.

Removing views in `finalizeUpdates` like it has been done until now is not enough because when a component is deleted, `finaliseUpdates` isn't called.

Reviewed By: shergin

Differential Revision: D23572999

fbshipit-source-id: f007dfe293b7d27d56253656c02529163304f83c
2020-09-08 10:53:57 -07:00
Moti Zilberman 345baf477c Fix reorder-init-list warning in RCTViewComponentView
Summary:
Changes the order of `RCTBorderColors` field designators to match their declaration order, fixing one case of `-Wreorder-init-list` when compiling the RN codebase with Xcode 12.

Changelog: [Internal]

Reviewed By: MichaReiser

Differential Revision: D23447685

fbshipit-source-id: f04a3841187f0869d2efb60e81ce075c45f27f3c
2020-09-01 07:32:57 -07:00
Samuel Susla 33c16689a8 Deallocate UIViewController after it was used in Modal component
Summary:
Changelog: [Internal]

# Problem
`RCTModalHostViewComponentView` reuses the same UIViewController between recycles. This can be a problem if dismissal of the modal is animated as the UIViewController is still presented while it is being dismissed. That's when "Application tried to present modally an active controller" exception can happen.

# Solution
Deallocate UIViewController when `RCTModalHostViewComponentView` is recycled.

Reviewed By: PeteTheHeat

Differential Revision: D23345711

fbshipit-source-id: da540571184afcb88b52758c4a1f0b4ec5874eb1
2020-08-26 18:49:21 -07:00
Samuel Susla 9b973f32e4 Fix TextInput value not restoring after reuse
Summary:
Changelog: [Internal]

# Problem

The problem was setting `_backedTextInputView.attributedText` to nil inside `[RCTTextInputComponentView prepareForRecycle]`.

Ordinarily this isn't a problem becase `UIManager::updateState` drops the update if the ShadowNode no longer exists. But in certain cases the ShadowNode can exist, empty string being set as its value

# Fix

Fix is trivial, invalidate state before nullifying `_backedTextInputView`. This prevents the state update from being dispatched.

# Discussion

We should go over all other components and make sure state is invalidated as first thing in `[RCTViewComponentView prepareForRecycle]`.

Reviewed By: shergin

Differential Revision: D23324929

fbshipit-source-id: 9568e920d99683ad95f965ef4b63c529f50f3283
2020-08-25 15:43:08 -07:00
Samuel Susla 258387ddaa Use window size instead of screen size in InputAccessoryView
Summary:
Changelog: [internal]

Use window size instead of screen size to layout InputAccessoryView.

Reviewed By: PeteTheHeat

Differential Revision: D23297141

fbshipit-source-id: d6d7223342d17a2e1b9e5fca6f999b7ad365d056
2020-08-25 06:50:34 -07:00
Samuel Susla 1704a725c5 Use ConcreteStateTeller in RCTImageComponentView
Summary: Changelog: [Internal]

Reviewed By: JoshuaGross

Differential Revision: D23239098

fbshipit-source-id: fa558e705e121f3d3fbded80ae99e5f51c80ae4a
2020-08-24 06:43:18 -07:00
Samuel Susla 0f7a1145ff Use ConcreteStateTeller in RCTInputAccessoryComponentView
Summary: Changelog: [Internal]

Reviewed By: JoshuaGross

Differential Revision: D23239095

fbshipit-source-id: a3324b5df6e6bd7508d74b66de9235852d828bbd
2020-08-24 06:43:18 -07:00
Samuel Susla 0b532e1be7 Use ConcreteStateTeller in RCTLegacyViewManagerInteropComponentView
Summary: Changelog: [Internal]

Reviewed By: JoshuaGross

Differential Revision: D23239097

fbshipit-source-id: 4c0d7b24917509d3d9660098349c226ad42e832e
2020-08-24 06:43:18 -07:00
Samuel Susla 9a5807162c Use ConcreteStateTeller in RCTParagraphComponentView
Summary: Changelog: [Internal]

Reviewed By: JoshuaGross

Differential Revision: D23239100

fbshipit-source-id: 10d10a369cb7ec82d2f6118a21ec70c2cc20abb3
2020-08-24 06:43:18 -07:00
Samuel Susla c2dab01c62 Use ConcreteStateTeller in RCTModalHostViewComponentView
Summary: Changelog: [Internal]

Reviewed By: JoshuaGross

Differential Revision: D23239096

fbshipit-source-id: b82301e5db48861d6d241abd681df38701e3ac44
2020-08-24 06:43:18 -07:00
Samuel Susla ca091b009a Use ConcreteStateTeller in RCTScrollViewComponentView
Summary: Changelog: [Internal]

Reviewed By: JoshuaGross

Differential Revision: D23238812

fbshipit-source-id: 8c777ae1264cfade507bfd336eefbe86ffb94b8f
2020-08-24 06:43:18 -07:00
Samuel Susla 724952e5d6 Use ConcreteStateTeller in RCTSafeAreaViewComponentView
Summary: Changelog: [Internal]

Reviewed By: JoshuaGross

Differential Revision: D23238703

fbshipit-source-id: 67596194b599ce8d39a6e7403bf61dce0fd61434
2020-08-24 06:43:18 -07:00
Samuel Susla e454863bca Use ConcreteStateTeller in RCTTextInputComponentView
Summary: Changelog: [Internal]

Reviewed By: JoshuaGross

Differential Revision: D23216864

fbshipit-source-id: 2b82e2d43cc694251a1873ad9059eff4abca4e73
2020-08-24 06:43:17 -07:00
Paige Sun 6aa63272dc Create internal Fabric subclass of RCTImageComponentView
Summary: Changelog: [Internal] Create internal Fabric subclass of RCTImageComponentView

Reviewed By: sammy-SC

Differential Revision: D23211115

fbshipit-source-id: 0e756de3f3e555bf212dc88dfc8c32930ac85132
2020-08-22 01:19:10 -07:00
Samuel Susla e4cfbbad6d Introduce RCTFBModalComponentView
Summary: Changelog: [Internal]

Reviewed By: shergin

Differential Revision: D23155490

fbshipit-source-id: 2c83c2ec71ca4d842275b4db6aac7169d3d77955
2020-08-17 15:44:29 -07:00
Paige Sun e1a5bd6bd6 Stop logging for Fabric from FBReactStreamingImageLoader
Summary: Changelog: [Internal]  Stop logging for Fabric from FBReactStreamingImageLoader

Reviewed By: fkgozali

Differential Revision: D23172395

fbshipit-source-id: d9fc4e82958d2f88ff91bddeb385fe3073cd8f1e
2020-08-17 15:44:29 -07:00
Samuel Susla c429ee9974 Implement ScrollView.contentInsetAdjustmentBehavior
Summary:
Changelog: [internal]

Fabric's ScrollView was ignoring value of `ScrollView.contentInsetAdjustmentBehavior`, this diff fixes that.

Reviewed By: shergin

Differential Revision: D23102235

fbshipit-source-id: 8cf42e730b560a21d56d7e007059109ccd01154e
2020-08-13 10:11:46 -07:00
Valentin Shergin b2570bd74d Removing dispatch_async-delayed TTRC reporting for Fabric TTRC tracker (gated)
Summary:
This diff introduces a new experiment touching performance measuring infra.

Changelog: [Internal] Fabric-specific internal change.

Reviewed By: JoshuaGross

Differential Revision: D23071089

fbshipit-source-id: 22e6f34754956311bd6a0140fe2accd5758d87c7
2020-08-12 12:12:47 -07:00
Samuel Susla 22c1032dbc Fix text not being restored from state in TextInput
Summary:
Changelog: [internal]

Restore text value from state when re-initialising RCTTextInputComponentView

Reviewed By: shergin

Differential Revision: D22844624

fbshipit-source-id: b47e3fe890793f8de429b637535d641262c42be2
2020-08-11 13:20:30 -07:00
Jiayan Zhuang b628d4f5d5 Fix the frame issue for truncated text
Summary:
Changelog:
[Internal] - Fix the frame issue for truncated text.

When double tapping to expand/truncate the text, the rect of the element always moves to the top and then come back to the original place.. This seems because after truncating/expanding the text, the view would re-render and the container would be destroyed. I used the API accessibilityFrameInContainerSpace to set the frame before. And the frame was not updated properly. Converting the bound to the screen coordinates and set accessibilityFrame directly fixed it.

Reviewed By: PeteTheHeat

Differential Revision: D23040295

fbshipit-source-id: 1b449c39c79007d5321ff7b565c170f6d3fab8a4
2020-08-10 17:54:33 -07:00
Samuel Susla 154ce78972 Take viewport offset into account in UIManager.measureInWindow
Summary:
Changelog: [Internal]

Fabric's UIManager.measureInWindow didn't take viewport's offset into account. This diff fixes it by including viewport's offset in `LayoutContext`.

Reviewed By: JoshuaGross

Differential Revision: D23021903

fbshipit-source-id: 9106a8789d66fe19d8cb0a9378ee5bc8f2c83005
2020-08-10 12:52:23 -07:00
Jiayan Zhuang dd040a87a7 Implement localization for accessibility guide words (#29576)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/29576

Changelog:
[Internal] - Implement localization for accessibility guide words

Reviewed By: PeteTheHeat

Differential Revision: D22419882

fbshipit-source-id: 85fc4e741df3c59b64173c027a3c4e61b01bad4c
2020-08-06 16:38:56 -07:00
Jiayan Zhuang 3f405dcbd2 Add support for accessibilityRole = "switch"
Summary:
Changelog:
[Internal] - Add support for accessibilityRole = "switch"

Reviewed By: sammy-SC

Differential Revision: D22906500

fbshipit-source-id: 81dfbfd56a24c89ffedc0fde5a63f7bdeed0c5db
2020-08-06 13:16:48 -07:00
Jiayan Zhuang 6fa9dbabfc Update accessibilityState prop
Summary:
Changelog:
[Internal] - Add default value for accessibilityState "checked" and handle unhandled states.

It is also work for the case that accessibilityRole = "switch" and accessibilityState is set.

Reviewed By: sammy-SC

Differential Revision: D22914427

fbshipit-source-id: 4767a21f3bd109019b57bc09918758a38fbdea93
2020-08-06 12:14:38 -07:00
Samuel Susla c452b826df Implement ScrollView.snapToOffsets and associated props
Summary:
Changelog: [Internal]
Implementation is copied from Paper.

Reviewed By: shergin

Differential Revision: D22820677

fbshipit-source-id: 8eed7ecd4dc766e8579a89707849e041adb073eb
2020-08-03 07:08:29 -07:00
Samuel Susla 94d0078653 Implement ScrollView.snapToInterval and associated props
Summary:
Changelog: [Internal]

Implementation is copied from Paper.

Reviewed By: shergin

Differential Revision: D22794554

fbshipit-source-id: ccfa777356932d81aa986349fba1685acf65d7f1
2020-08-03 07:08:29 -07:00
David Vacca 3093010ea5 move fabric to ReactCommon/react/renderer
Summary:
This diff moves fabric C++ code from ReactCommon/fabric to ReactCommon/react/renderer
As part of this diff I also refactored components, codegen and callsites on CatalystApp, FB4A and venice

Script: P137350694

changelog: [internal] internal refactor

Reviewed By: fkgozali

Differential Revision: D22852139

fbshipit-source-id: f85310ba858b6afd81abfd9cbe6d70b28eca7415
2020-07-31 13:34:29 -07:00
Peter Argany 91d16bbd9f Hardcode @available(iOS 10) to YES
Summary:
RN removed support for iOS 9 last year, therefore iOS10+ is always available.

Changelog: [Internal]

Reviewed By: fkgozali

Differential Revision: D22655069

fbshipit-source-id: 77e85e0403ea7ea0febc8766c10bb6f94ea417ad
2020-07-22 11:00:32 -07:00
Jiayan Zhuang 5ac524bdbc Add a condition to exclude accessibilityRole that not currently used
Summary:
Changelog:
[Internal] - Add an condition to exclude accessibilityRole that not currently used

Since I've added all the possible values in accessibilityRole enum, it is necessary to gate what needs to be an accessibilityElement. SO I add a condition to exclude accessibilityRole that not currently used.

Reviewed By: shergin

Differential Revision: D22559136

fbshipit-source-id: 910d59132984872b5a9816b8e390117b7b1e2e71
2020-07-16 08:34:31 -07:00
Jiayan Zhuang 4320359686 Reword the guide words
Summary:
Changelog:
[Internal] - Reword the guide words to make it more generic.

Considering the case that some languages are RTL so swiping right cannot guarantee to move to the link. iOS can handle the order of the words and accessibilityElements according to the language. But the accessibilityHint we hardcoded would be an issue. So we decided to reword it to be more generic.

Reviewed By: PeteTheHeat

Differential Revision: D22422498

fbshipit-source-id: 175711317961663d0b0b47e04d2ab600f63446fe
2020-07-14 11:24:32 -07:00
Jiayan Zhuang 8c602e271e Solve truncation attributed string case
Summary:
Changelog:
[Internal] - Add a `accessibilityHint` to the first accessibilityElement so that it will tell user double tap to expand or truncate the text after reading the whole text. Also add the `accessibilityRole` in `FBTextWithEntities` when shouldTruncated is true, which allow us to specially distinguish the shouldTruncated text.

Reviewed By: sammy-SC

Differential Revision: D22339875

fbshipit-source-id: ce22fe9d86eeba5a2750022acd2cdd2c06a1dc79
2020-07-14 09:55:32 -07:00
Jiayan Zhuang ac0f4b42c5 Add additional accessibilityElements for embedded links
Summary:
Changelog:
[Internal] - Add the additional accessibilityElement for embedded links

Reviewed By: sammy-SC

Differential Revision: D22296547

fbshipit-source-id: 286cd3cb19d288d584ecd94a8201a28851ca042f
2020-07-06 15:00:58 -07:00
Jiayan Zhuang 10a800da25 Complete the basic RCTParagraphComponentAccessibilityProvider
Summary:
Changelog:
[Internal] - add the first accessibilityElement

Reviewed By: shergin

Differential Revision: D22249310

fbshipit-source-id: e0f1920377eb9d7a22737cf7437b1c5bd7195c5d
2020-07-06 15:00:58 -07:00
Valentin Shergin 4716d2282e Fabric: Fixes in computing visible frame in RCTScrollViewComponentView
Summary:
This refined algorithm now takes a zoom/scale into account and deals with `contentInset` properly.

Changelog: [Internal] Fabric-specific internal change.

Reviewed By: sammy-SC

Differential Revision: D22382482

fbshipit-source-id: 7e9d34d3bababf68e624c045c308957e7e5c9d84
2020-07-04 15:25:43 -07:00
Samuel Susla 42c8dead62 Restore contentOffset from state if necesarry
Summary:
Changelog: [Internal]

When JS Inspector is activated, ScrollView is unmounted and then mounted again with same state.

 ScrollView's content offset was being set to 0 inside `[RCTScrollViewComponentView prepareForRecycle]` during unmount but when it is mounted again, we ignored value inside state.

Reviewed By: shergin

Differential Revision: D22333125

fbshipit-source-id: f232dc95b695605f4819f29d8e0bf14b2f3e9150
2020-07-03 11:15:26 -07:00
Jiayan Zhuang ffa07254de Build the framework for RCTParagraphComponentAccessibilityProvider
Summary:
Changelog:
[iOS][Added] - This is the first step to build RCTParagraphComponentAccessibilityProvider.  The main idea of RCTParagraphComponentAccessibilityProvider is to provide an array of accessible elements for the AttributedString in PCTParagraphComponentView.

Reviewed By: sammy-SC

Differential Revision: D22214855

fbshipit-source-id: 69d47555e86452620f89a4b2e21ed6065c8e669c
2020-07-02 08:55:39 -07:00
Valentin Shergin 8320ad37f2 Fabric: Using overflowInset in on-demain view mounting in <ScrollView>
Summary:
Now we can use `overflowInset` to check if the view's descendants overflow.

```
  ┌ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ┐
   A cell w/o overflow content
  │                           │

  └ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ┘
  ┌───────────────────────────┐                 ┌───────────────────────────┐
  │A cell w/ overflow content │                 │A cell w/ overflow content │
  │             ┌───────────┐ │   <━━━━━━━━━>   │             ┌───────────┐ │
  │             │A thing    │ │                 │             │A thing    │ │
  └─────────────┤that       ├─┘                 └─────────────┤that       ├─┘
  ┌ ─ ─ ─ ─ ─ ─ ┤overflows  ├ ┐                 Inset ********│overflows  │**
                │ended up   │                   Overflow******│ended up   │**
  │             │being      │ │                 **************│being      │**
                │visible.   │                   **************│visible.   │**
  └ ─ ─ ─ ─ ─ ─ ┤           ├ ┘                 **************│           │**
  ┌─────────────┤           ├─┐                 **************│           │**
  │             │           │ │                 **************│           │**
  │             │           │ │                 **************│           │**
╔═│             │           │ │═╗             ╔═**************│           │**═╗
║ └─────────────┤           ├─┘ ║             ║ **************│           │** ║
║ ┌─────────────┤           ├─┐ ║             ║ **************│           │** ║
║ │             │           │ │ ║             ║ **************│           │** ║
║ │             │           │ │ ║             ║ **************│           │** ║
║ │             └───────────┘ │ ║             ║ **************└───────────┘** ║
║ └───────────────────────────┘ ║             ║                               ║
║ ┌───────────────────────────┐ ║             ║                               ║
║ │                           │ ║             ║                               ║
║ │                           │ ║             ║                               ║
║ │                           │ ║             ║                               ║
║ └───────────────────────────┘ ║             ║                               ║
║ ┌───────────────────────────┐ ║             ║                               ║
║ │                           │ ║             ║                               ║
║ │                           │ ║             ║                               ║
║ │                           │ ║             ║                               ║
║ └───────────────────────────┘ ║             ║                               ║
║ ┌───────────────────────────┐ ║             ║                               ║
║ │                           │ ║             ║                               ║
║ │                           │ ║             ║                               ║
║ │                           │ ║             ║                               ║
║ └───────────────────────────┘ ║             ║                               ║
║ ┌───────────────────────────┐ ║             ║                               ║
║ │                           │ ║             ║                               ║
║ │                           │ ║             ║                               ║
╚═│                           │═╝             ╚═══════════════════════════════╝
  └───────────────────────────┘
  ┌ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ┐

  │                           │

  └ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ┘
  ┌ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ┐

  │                           │

  └ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ┘
```

Changelog: [Internal] Fabric-specific internal change.

Reviewed By: sammy-SC

Differential Revision: D22325808

fbshipit-source-id: e80ae196fc9158358a67c6706b0a2ddec6d47ee9
2020-07-01 18:25:14 -07:00