add roatation gesutre handler

Author: Jack Sobocinski

ARKit.js

@@ -58,6 +58,7 @@ class ARKit extends Component {
       keyBy([
         'onTapOnPlaneUsingExtent',
         'onTapOnPlaneNoExtent',
+        'onRotationGesture',
         'onPlaneDetected',
         'onPlaneRemoved',
         'onPlaneUpdated',
@@ -238,6 +239,7 @@ ARKit.propTypes = {
   onTrackingState: PropTypes.func,
   onTapOnPlaneUsingExtent: PropTypes.func,
   onTapOnPlaneNoExtent: PropTypes.func,
+  onRotationGesture: PropTypes.func,
   onEvent: PropTypes.func,
   isMounted: PropTypes.func,
   isInitialized: PropTypes.func,

ios/RCTARKit.h

@@ -50,6 +50,7 @@ typedef void (^RCTARKitReject)(NSString *code, NSString *message, NSError *error
 @property (nonatomic, copy) RCTBubblingEventBlock onPlaneRemoved;
 @property (nonatomic, copy) RCTBubblingEventBlock onPlaneUpdated;
 
+
 @property (nonatomic, copy) RCTBubblingEventBlock onAnchorDetected;
 @property (nonatomic, copy) RCTBubblingEventBlock onAnchorRemoved;
 @property (nonatomic, copy) RCTBubblingEventBlock onAnchorUpdated;
@@ -61,6 +62,9 @@ typedef void (^RCTARKitReject)(NSString *code, NSString *message, NSError *error
 @property (nonatomic, copy) RCTBubblingEventBlock onTrackingState;
 @property (nonatomic, copy) RCTBubblingEventBlock onTapOnPlaneUsingExtent;
 @property (nonatomic, copy) RCTBubblingEventBlock onTapOnPlaneNoExtent;
+
+@property (nonatomic, copy) RCTBubblingEventBlock onRotationGesture;
+
 @property (nonatomic, copy) RCTBubblingEventBlock onEvent;
 @property (nonatomic, copy) RCTBubblingEventBlock onARKitError;
 

ios/RCTARKit.m

@@ -76,6 +76,9 @@ - (instancetype)initWithARView:(ARSCNView *)arView {
         UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTapFrom:)];
         tapGestureRecognizer.numberOfTapsRequired = 1;
         [self.arView addGestureRecognizer:tapGestureRecognizer];
+
+        UIRotationGestureRecognizer *rotationGestureRecognizer = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(handleRotationFrom:)];
+        [self.arView addGestureRecognizer:rotationGestureRecognizer];
 
         self.touchDelegates = [NSMutableArray array];
         self.rendererDelegates = [NSMutableArray array];
@@ -550,7 +553,22 @@ - (void)handleTapFrom: (UITapGestureRecognizer *)recognizer {
     }
 }
 
+- (void)handleRotationFrom: (UIRotationGestureRecognizer *)recognizer {
+    
+    if( recognizer.state == UIGestureRecognizerStateBegan || 
+        recognizer.state == UIGestureRecognizerStateChanged || 
+        recognizer.state == UIGestureRecognizerStateEnded) {
+
+        if(self.onRotationGesture) {
+            NSDictionary *rotationGesture = @{
+                    @"rotation": @(recognizer.rotation),
+                    @"velocity": @(recognizer.velocity)
+                    };
 
+            self.onRotationGesture(rotationGesture);
+        }
+    }
+}
 
 #pragma mark - ARSCNViewDelegate
 

ios/RCTARKitManager.m

@@ -188,6 +188,7 @@ - (NSDictionary *)constantsToExport
 RCT_EXPORT_VIEW_PROPERTY(onLightEstimation, RCTBubblingEventBlock)
 RCT_EXPORT_VIEW_PROPERTY(onTapOnPlaneUsingExtent, RCTBubblingEventBlock)
 RCT_EXPORT_VIEW_PROPERTY(onTapOnPlaneNoExtent, RCTBubblingEventBlock)
+RCT_EXPORT_VIEW_PROPERTY(onRotationGesture, RCTBubblingEventBlock)
 RCT_EXPORT_VIEW_PROPERTY(onEvent, RCTBubblingEventBlock)
 RCT_EXPORT_VIEW_PROPERTY(onARKitError, RCTBubblingEventBlock)
 RCT_EXPORT_VIEW_PROPERTY(worldMap, NSObject);