Fix touch inspector when using Nodes

Reviewed By: astreet

Differential Revision: D3433927

fbshipit-source-id: 5b17a16191f167db8f4491da37a1735e725e99b8

ReactAndroid/src/main/java/com/facebook/react/uimanager/JSTouchDispatcher.java

@@ -77,7 +77,8 @@ public class JSTouchDispatcher {
         ev.getX(),
         ev.getY(),
         mRootViewGroup,
-        mTargetCoordinates);
+        mTargetCoordinates,
+        null);
       eventDispatcher.dispatchEvent(
         TouchEvent.obtain(
           mTargetTag,

ReactAndroid/src/main/java/com/facebook/react/uimanager/TouchTargetHelper.java

@@ -46,7 +46,27 @@ public class TouchTargetHelper {
       float eventX,
       float eventY,
       ViewGroup viewGroup) {
-    return findTargetTagAndCoordinatesForTouch(eventX, eventY, viewGroup, mEventCoords);
+    return findTargetTagAndCoordinatesForTouch(
+        eventX, eventY, viewGroup, mEventCoords, null);
+  }
+
+  /**
+   * Find touch event target view within the provided container given the coordinates provided
+   * via {@link MotionEvent}.
+   *
+   * @param eventX the X screen coordinate of the touch location
+   * @param eventY the Y screen coordinate of the touch location
+   * @param viewGroup the container view to traverse
+   * @param nativeViewId the native react view containing this touch target
+   * @return the react tag ID of the child view that should handle the event
+   */
+  public static int findTargetTagForTouch(
+      float eventX,
+      float eventY,
+      ViewGroup viewGroup,
+      @Nullable int[] nativeViewId) {
+    return findTargetTagAndCoordinatesForTouch(
+        eventX, eventY, viewGroup, mEventCoords, nativeViewId);
   }
 
   /**
@@ -57,13 +77,15 @@ public class TouchTargetHelper {
    * @param eventY the Y screen coordinate of the touch location
    * @param viewGroup the container view to traverse
    * @param viewCoords an out parameter that will return the X,Y value in the target view
+   * @param nativeViewTag an out parameter that will return the native view id
    * @return the react tag ID of the child view that should handle the event
    */
   public static int findTargetTagAndCoordinatesForTouch(
       float eventX,
       float eventY,
       ViewGroup viewGroup,
-      float[] viewCoords) {
+      float[] viewCoords,
+      @Nullable int[] nativeViewTag) {
     UiThreadUtil.assertOnUiThread();
     int targetTag = viewGroup.getId();
     // Store eventCoords in array so that they are modified to be relative to the targetView found.
@@ -73,6 +95,9 @@ public class TouchTargetHelper {
     if (nativeTargetView != null) {
       View reactTargetView = findClosestReactAncestor(nativeTargetView);
       if (reactTargetView != null) {
+        if (nativeViewTag != null) {
+          nativeViewTag[0] = reactTargetView.getId();
+        }
         targetTag = getTouchTargetForView(reactTargetView, viewCoords[0], viewCoords[1]);
       }
     }