From 1c3af598b163c8e02baa0bfa3455347ed869932f Mon Sep 17 00:00:00 2001
From: Ramanpreet Nara <ramanpreet@fb.com>
Date: Thu, 16 Aug 2018 13:34:05 -0700
Subject: [PATCH] Implement 'scrollEnabled' prop

Summary:
@public

The content of `WKWebView` renders within a scrollview. In this diff, I'm introducing the prop `scrollEnabled` to allow developers to control whether scrolling is enabled within the scroll view, or not.

Reviewed By: mmmulani

Differential Revision: D6307001

fbshipit-source-id: 5a199c6c3b8535e45a5a3cb6041e822bb7af2362
---
 React/Views/RCTWKWebView.h        | 1 +
 React/Views/RCTWKWebView.m        | 5 +++++
 React/Views/RCTWKWebViewManager.m | 3 +++
 3 files changed, 9 insertions(+)

diff --git a/React/Views/RCTWKWebView.h b/React/Views/RCTWKWebView.h
index d094b72d4dd..ca1d3ae1936 100644
--- a/React/Views/RCTWKWebView.h
+++ b/React/Views/RCTWKWebView.h
@@ -20,6 +20,7 @@
 @property (nonatomic, copy) NSDictionary *source;
 @property (nonatomic, assign) BOOL messagingEnabled;
 @property (nonatomic, copy) NSString *injectedJavaScript;
+@property (nonatomic, assign) BOOL scrollEnabled;
 
 - (void)postMessage:(NSString *)message;
 
diff --git a/React/Views/RCTWKWebView.m b/React/Views/RCTWKWebView.m
index 2c9aef5e570..63bab215932 100644
--- a/React/Views/RCTWKWebView.m
+++ b/React/Views/RCTWKWebView.m
@@ -85,6 +85,11 @@ static NSString *const MessageHanderName = @"ReactNative";
   }
 }
 
+- (void)setScrollEnabled:(BOOL)scrollEnabled
+{
+  _webView.scrollView.scrollEnabled = scrollEnabled;
+}
+
 - (void)postMessage:(NSString *)message
 {
   NSDictionary *eventInitDict = @{@"data": message};
diff --git a/React/Views/RCTWKWebViewManager.m b/React/Views/RCTWKWebViewManager.m
index a2f8df4a5fb..5b71de0c7ac 100644
--- a/React/Views/RCTWKWebViewManager.m
+++ b/React/Views/RCTWKWebViewManager.m
@@ -37,5 +37,8 @@ RCT_EXPORT_METHOD(postMessage:(nonnull NSNumber *)reactTag message:(NSString *)m
 }
 
 RCT_REMAP_VIEW_PROPERTY(bounces, _webView.scrollView.bounces, BOOL)
+RCT_CUSTOM_VIEW_PROPERTY(scrollEnabled, BOOL, RCTWKWebView) {
+  view.scrollEnabled = json == nil ? true : [RCTConvert BOOL: json];
+}
 
 @end