Enable setJSResponder/setIsJSResponder for React Native Fabric (#21439)

* Enable setJSResponder/setIsJSResponder for React Native * yarn prettier * add types to react-native-host-hooks * yarn prettier * mock setIsJSResponder
facebook · May 6, 2021 · bd070eb · bd070eb
1 parent 46ef1ab
commit bd070eb
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Showing 3 changed files with 23 additions and 1 deletion.
diff --git a/packages/react-native-renderer/src/ReactFabricGlobalResponderHandler.js b/packages/react-native-renderer/src/ReactFabricGlobalResponderHandler.js
@@ -19,7 +19,23 @@ const ReactFabricGlobalResponderHandler = {
     );
 
     if (isFabric) {
-      // Noop for now until setJSResponder/clearJSResponder are supported in Fabric
+      if (from) {
+        // equivalent to clearJSResponder
+        nativeFabricUIManager.setIsJSResponder(
+          from.stateNode.node,
+          false,
+          blockNativeResponder || false,
+        );
+      }
+
+      if (to) {
+        // equivalent to setJSResponder
+        nativeFabricUIManager.setIsJSResponder(
+          to.stateNode.node,
+          true,
+          blockNativeResponder || false,
+        );
+      }
     } else {
       if (to !== null) {
         const tag = to.stateNode.canonical._nativeTag;

diff --git a/...erer/src/__mocks__/react-native/Libraries/ReactPrivate/InitializeNativeFabricUIManager.js b/...erer/src/__mocks__/react-native/Libraries/ReactPrivate/InitializeNativeFabricUIManager.js
@@ -176,6 +176,7 @@ const RCTFabricUIManager = {
     );
     success(1, 1, 100, 100);
   }),
+  setIsJSResponder: jest.fn(),
 };
 
 global.nativeFabricUIManager = RCTFabricUIManager;
diff --git a/scripts/flow/react-native-host-hooks.js b/scripts/flow/react-native-host-hooks.js
@@ -179,6 +179,11 @@ declare var nativeFabricUIManager: {
     locationY: number,
     callback: (Fiber) => void,
   ) => void,
+  setIsJSResponder: (
+    node: Node,
+    isJsResponder: boolean,
+    blockNativeResponder: boolean,
+  ) => void,
   ...
 };