Make the interop-layer work with components with custom name

Author: cipolleschi

packages/react-native/Libraries/AppDelegate/RCTLegacyInteropComponents.mm

@@ -11,7 +11,10 @@ @implementation RCTLegacyInteropComponents
 
 + (NSArray<NSString *> *)legacyInteropComponents
 {
-  return @[ @"RNTMyLegacyNativeView", @"RNTMyNativeView" ];
+  return @[
+			@"RNTMyLegacyNativeView",
+			@"RNTMyNativeView"
+  ];
 }
 
 @end

packages/react-native/ReactCommon/react/renderer/components/legacyviewmanagerinterop/LegacyViewManagerInteropComponentDescriptor.mm

@@ -74,13 +74,28 @@ static Class getViewManagerFromComponentName(const std::string &componentName)
   return nil;
 }
 
+static Class getViewManagerClass(const std::string &componentName, RCTBridge * bridge, RCTBridgeProxy * bridgeProxy) {
+  Class viewManager = getViewManagerFromComponentName(componentName);
+  if (viewManager != nil) {
+    return viewManager;
+  }
+  
+  // If all the heuristics fail, let's try to retrieve the view manager from the bridge/bridgeProxy
+  if (bridge != nil) {
+    return [[bridge moduleForName:RCTNSStringFromString(componentName)] class];
+  }
+  
+  if (bridgeProxy != nil) {
+    return [[bridgeProxy moduleForName:RCTNSStringFromString(componentName) lazilyLoadIfNecessary:NO] class];
+  }
+  
+  return nil;
+}
+
 static const std::shared_ptr<void> constructCoordinator(
     const ContextContainer::Shared &contextContainer,
     const ComponentDescriptor::Flavor &flavor)
 {
-  auto componentName = *std::static_pointer_cast<std::string const>(flavor);
-  Class viewManagerClass = getViewManagerFromComponentName(componentName);
-  assert(viewManagerClass);
   auto optionalBridge = contextContainer->find<std::shared_ptr<void>>("Bridge");
   RCTBridge *bridge;
   if (optionalBridge) {
@@ -92,6 +107,10 @@ static Class getViewManagerFromComponentName(const std::string &componentName)
   if (optionalBridgeProxy) {
     bridgeProxy = unwrapManagedObjectWeakly(optionalBridgeProxy.value());
   }
+  
+  auto componentName = *std::static_pointer_cast<std::string const>(flavor);
+  Class viewManagerClass = getViewManagerClass(componentName, bridge, bridgeProxy);
+  assert(viewManagerClass);
 
   auto optionalEventDispatcher = contextContainer->find<std::shared_ptr<void>>("RCTEventDispatcher");
   RCTEventDispatcher *eventDispatcher;