fix touch system on iOS

subViews in G will run hitTest now.
fix hitTest while using clipPath

ios/Elements/RNSVGGroup.h

@@ -15,5 +15,5 @@
 @interface RNSVGGroup : RNSVGNode <RNSVGContainer>
 @property (nonatomic, strong) NSString *asClipPath; // Current group is a <ClipPath /> element and asClipPath is its id.
 
-
+- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event;
 @end

ios/Elements/RNSVGGroup.m

@@ -33,4 +33,18 @@
     return path;
 }
 
+// hitTest delagate
+
+- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event
+{
+    for (RNSVGNode *node in [self.subviews reverseObjectEnumerator]) {
+        UIView *view = [node hitTest: point withEvent:event];
+        
+        if (view != NULL) {
+            return view;
+        }
+    }
+    return nil;
+}
+
 @end

ios/RNSVGNode.h

@@ -39,6 +39,8 @@
  */
 - (void)clip:(CGContextRef)context;
 
+- (CGPathRef)getClipPath;
+
 /**
  * define <ClipPath></ClipPath> content as clipPath template.
  */
@@ -49,4 +51,6 @@
  */
 - (CGPathRef)getPath: (CGContextRef) context;
 
+
+- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event;
 @end

ios/RNSVGNode.m

@@ -35,10 +35,10 @@ static NSMutableDictionary *ClipPaths;
     _opacity = opacity;
 }
 
-- (void)setTransform:(CGAffineTransform)transform
+- (void)setTrans:(CGAffineTransform)trans
 {
     [self invalidate];
-    super.transform = transform;
+    super.transform = trans;
 }
 
 - (void)invalidate
@@ -107,7 +107,7 @@ static NSMutableDictionary *ClipPaths;
     return CGPathCreateMutable();
 }
 
-- (void)clip:(CGContextRef)context
+- (CGPathRef)getClipPath
 {
     CGPathRef clipPath = nil;
     
@@ -115,18 +115,26 @@ static NSMutableDictionary *ClipPaths;
         clipPath = self.clipPath;
     } else if (self.clipPathId) {
         clipPath = [[ClipPaths valueForKey:self.clipPathId] pointerValue];
-    } else {
-        return;
     }
     
-    CGContextAddPath(context, clipPath);
-    if (self.clipRule == kRNSVGCGFCRuleEvenodd) {
-        CGContextEOClip(context);
-    } else {
-        CGContextClip(context);
+    return clipPath;
+}
+
+- (void)clip:(CGContextRef)context
+{
+    CGPathRef clipPath  = [self getClipPath];
+    
+    if (clipPath != NULL) {
+        CGContextAddPath(context, [self getClipPath]);
+        if (self.clipRule == kRNSVGCGFCRuleEvenodd) {
+            CGContextEOClip(context);
+        } else {
+            CGContextClip(context);
+        }
     }
 }
 
+
 - (void)reactSetInheritedBackgroundColor:(UIColor *)inheritedBackgroundColor
 {
     self.backgroundColor = inheritedBackgroundColor;
@@ -137,6 +145,12 @@ static NSMutableDictionary *ClipPaths;
     // abstract
 }
 
+- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event;
+{
+    // abstract
+    return nil;
+}
+
 - (void)dealloc
 {
     CGPathRelease(_clipPath);

ios/RNSVGRenderable.h

@@ -25,4 +25,6 @@
 @property (nonatomic, assign) CGFloat strokeDashoffset;
 @property (nonatomic, assign) CGMutablePathRef nodeArea;
 
+- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event;
+
 @end

ios/RNSVGRenderable.m

@@ -92,11 +92,15 @@
 }
 
 // hitTest delagate
-- (UIView *)hitTest:(CGPoint)point
-          withEvent:(UIEvent *)event
+- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event
 {
+    CGPathRef clipPath  = [self getClipPath];
     if (self.nodeArea != NULL && CGPathContainsPoint(self.nodeArea, nil, point, NO)) {
-        return self;
+        if (clipPath == NULL) {
+            return self;
+        } else {
+            return CGPathContainsPoint(clipPath, nil, point, NO) ? self : nil;
+        }
     } else {
         return nil;
     }

ios/ViewManagers/RNSVGNodeManager.m

@@ -30,7 +30,7 @@ RCT_EXPORT_MODULE()
 }
 
 RCT_EXPORT_VIEW_PROPERTY(opacity, CGFloat)
-RCT_EXPORT_VIEW_PROPERTY(transform, CGAffineTransform)
+RCT_EXPORT_VIEW_PROPERTY(trans, CGAffineTransform)
 RCT_EXPORT_VIEW_PROPERTY(clipPathId, NSString)
 
 @end