From a4152f5e2f923bf23f85defb352647bd1f646b1b Mon Sep 17 00:00:00 2001
From: Josh Leonard <jleonard@brave.com>
Date: Tue, 29 Mar 2022 12:42:45 -0600
Subject: [PATCH] Merge pull request #12794 from
 brave/feature-add-isBrave-property-to-window-dot-ethereum

feat: add `isBraveWallet` property to `window.ethereum`
---
 .../resources/brave_wallet_provider.js        | 34 +++++++++++++++----
 1 file changed, 27 insertions(+), 7 deletions(-)

diff --git a/components/brave_wallet/resources/brave_wallet_provider.js b/components/brave_wallet/resources/brave_wallet_provider.js
index 786102335288..154c808dcc04 100644
--- a/components/brave_wallet/resources/brave_wallet_provider.js
+++ b/components/brave_wallet/resources/brave_wallet_provider.js
@@ -9,13 +9,33 @@
   }
   var EventEmitter = require('events')
   var BraveWeb3ProviderEventEmitter = new EventEmitter()
-  window.ethereum.on = BraveWeb3ProviderEventEmitter.on
-  window.ethereum.emit = BraveWeb3ProviderEventEmitter.emit
-  window.ethereum.removeListener =
-      BraveWeb3ProviderEventEmitter.removeListener
-  window.ethereum.removeAllListeners =
-      BraveWeb3ProviderEventEmitter.removeAllListeners
-  window.ethereum.isMetaMask = true
+  Object.defineProperties(window.ethereum, {
+    on: {
+      value: BraveWeb3ProviderEventEmitter.on,
+      writable: false
+    },
+    emit: {
+      value: BraveWeb3ProviderEventEmitter.emit,
+      writable: false
+    },
+    removeListener: {
+      value: BraveWeb3ProviderEventEmitter.removeListener,
+      writable: false
+    },
+    removeAllListeners: {
+      value: BraveWeb3ProviderEventEmitter.removeAllListeners,
+      writable: false
+    },
+    isMetaMask: {
+      value: true,
+      writable: false
+    },
+    isBraveWallet: {
+      value: true,
+      writable: false
+    }
+  })
+
   Object.defineProperty(window, 'ethereum', {
     value: new Proxy(window.ethereum, {
       get: (...args) => {