From 05b4570d3ff1004e995ff618b10ed115799a5fbb Mon Sep 17 00:00:00 2001
From: David Vacca <dvacca@fb.com>
Date: Fri, 18 Feb 2022 17:35:53 -0800
Subject: [PATCH] Refactor LayoutAnimation to use ReactNativeFeatureFlags

Summary:
This diff refactors LayoutAnimation to use ReactNativeFeatureFlags.ENABLE_LAYOUT_ANIMATION to enable / disable this feature

changelog: [internal] internal

Reviewed By: JoshuaGross

Differential Revision: D34349648

fbshipit-source-id: 90d1db6560867e44eeffbf03e5a84edadcdd55f9
---
 Libraries/LayoutAnimation/LayoutAnimation.js     | 6 ++++--
 Libraries/ReactNative/ReactNativeFeatureFlags.js | 4 ++++
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/Libraries/LayoutAnimation/LayoutAnimation.js b/Libraries/LayoutAnimation/LayoutAnimation.js
index 2001729e004..561ef2f71d9 100644
--- a/Libraries/LayoutAnimation/LayoutAnimation.js
+++ b/Libraries/LayoutAnimation/LayoutAnimation.js
@@ -19,6 +19,7 @@ import type {
 } from '../Renderer/shims/ReactNativeTypes';
 
 import Platform from '../Utilities/Platform';
+import ReactNativeFeatureFlags from '../ReactNative/ReactNativeFeatureFlags';
 
 // Reexport type
 export type LayoutAnimationConfig = LayoutAnimationConfig_;
@@ -26,10 +27,11 @@ export type LayoutAnimationConfig = LayoutAnimationConfig_;
 type OnAnimationDidEndCallback = () => void;
 type OnAnimationDidFailCallback = () => void;
 
-let isLayoutAnimationEnabled: boolean = true;
+let isLayoutAnimationEnabled: boolean =
+  ReactNativeFeatureFlags.isLayoutAnimationEnabled();
 
 function setEnabled(value: boolean) {
-  isLayoutAnimationEnabled = value;
+  isLayoutAnimationEnabled = isLayoutAnimationEnabled;
 }
 
 /**
diff --git a/Libraries/ReactNative/ReactNativeFeatureFlags.js b/Libraries/ReactNative/ReactNativeFeatureFlags.js
index 89f4334d23c..90a9eee5180 100644
--- a/Libraries/ReactNative/ReactNativeFeatureFlags.js
+++ b/Libraries/ReactNative/ReactNativeFeatureFlags.js
@@ -11,6 +11,10 @@
 'use strict';
 
 export type FeatureFlags = {|
+  /**
+   * Function used to enable / disabled Layout Animations in React Native.
+   * Default value = true.
+   */
   isLayoutAnimationEnabled: () => boolean,
 |};