From 373e54a8b1de3487ea795f0362aa841f225a6e1f Mon Sep 17 00:00:00 2001
From: Christina Xu <christina1012@fb.com>
Date: Mon, 9 Dec 2019 00:03:40 -0800
Subject: [PATCH] Rewrite setonclicklistener

Reviewed By: dreamolight

Differential Revision: D18880429

fbshipit-source-id: 31982cc310ac51691b9c635213b8bd567fe33555
---
 .../codeless/internal/ViewHierarchy.java      | 38 +++++++++++++++++++
 .../suggestedevents/ViewOnClickListener.java  |  2 +-
 2 files changed, 39 insertions(+), 1 deletion(-)

diff --git a/facebook-core/src/main/java/com/facebook/appevents/codeless/internal/ViewHierarchy.java b/facebook-core/src/main/java/com/facebook/appevents/codeless/internal/ViewHierarchy.java
index 55cbdf3492..f0c4e471f8 100644
--- a/facebook-core/src/main/java/com/facebook/appevents/codeless/internal/ViewHierarchy.java
+++ b/facebook-core/src/main/java/com/facebook/appevents/codeless/internal/ViewHierarchy.java
@@ -371,6 +371,44 @@ public static View.OnClickListener getExistingOnClickListener(View view) {
         return null;
     }
 
+    public static void setOnClickListener(View view, View.OnClickListener newListener) {
+        try {
+            Field listenerInfoField = null;
+            Field listenerField = null;
+            try {
+                listenerInfoField = Class.forName("android.view.View")
+                        .getDeclaredField("mListenerInfo");
+                listenerField = Class.forName("android.view.View$ListenerInfo")
+                        .getDeclaredField("mOnClickListener");
+            } catch (ClassNotFoundException e) {  /* no op */
+            } catch (NoSuchFieldException e) {  /* no op */
+            }
+
+            if (listenerInfoField == null || listenerField == null) {
+                view.setOnClickListener(newListener);
+                return;
+            }
+
+            listenerInfoField.setAccessible(true);
+            listenerField.setAccessible(true);
+
+            Object listenerObj = null;
+            try {
+                listenerInfoField.setAccessible(true);
+                listenerObj = listenerInfoField.get(view);
+            } catch (IllegalAccessException e) { /* no op */
+            }
+
+            if (listenerObj == null) {
+                view.setOnClickListener(newListener);
+                return;
+            }
+
+            listenerField.set(listenerObj, newListener);
+        } catch (Exception e) { /* no op */
+        }
+    }
+
     @Nullable
     @RestrictTo(RestrictTo.Scope.GROUP_ID)
     public static View.OnTouchListener getExistingOnTouchListener(View view) {
diff --git a/facebook-core/src/main/java/com/facebook/appevents/suggestedevents/ViewOnClickListener.java b/facebook-core/src/main/java/com/facebook/appevents/suggestedevents/ViewOnClickListener.java
index b0d505e8a6..f7146524b4 100644
--- a/facebook-core/src/main/java/com/facebook/appevents/suggestedevents/ViewOnClickListener.java
+++ b/facebook-core/src/main/java/com/facebook/appevents/suggestedevents/ViewOnClickListener.java
@@ -59,7 +59,7 @@ public final class ViewOnClickListener implements View.OnClickListener {
     static void attachListener(View hostView, View rootView, String activityName) {
         int key = hostView.hashCode();
         if (!viewsAttachedListener.contains(key)) {
-            hostView.setOnClickListener(
+            ViewHierarchy.setOnClickListener(hostView,
                     new ViewOnClickListener(hostView, rootView, activityName));
             viewsAttachedListener.add(key);
         }