From 72f7454d170437ba008b29cc0d07d0ca233253bd Mon Sep 17 00:00:00 2001
From: Ardis Lu <ardisglu@gmail.com>
Date: Fri, 12 Apr 2024 22:58:12 -0700
Subject: [PATCH] Add ERC-4906 and support for hardcoded interface IDs

---
 index.html      | 9 ++++++++-
 interfaces.json | 1 +
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/index.html b/index.html
index e78ee63..1240db1 100644
--- a/index.html
+++ b/index.html
@@ -137,6 +137,7 @@
         <option value="ERC-1363">ERC-1363</option>
         <option value="ERC-1363-Receiver">ERC-1363 Receiver</option>
         <option value="ERC-1363-Spender">ERC-1363 Spender</option>
+        <option value="ERC-4906">ERC-4906</option>
         <option value="ERC-5805">ERC-5805</option>
         <option value="ERC-6551-Account">ERC-6551 Account</option>
         <option value="ERC-6551-Executor">ERC-6551 Executor</option>
@@ -160,6 +161,7 @@
     document.querySelector('select').addEventListener('change', e => {
       const selection = e.target.value;
       const textarea = document.querySelector('textarea');
+      const output = document.querySelector('output');
 
       if (lastSelection === 'Custom') {
         customFunctions = textarea.value;
@@ -170,11 +172,16 @@
       if (selection === 'Custom') {
         textarea.value = customFunctions;
         textarea.readOnly = false;
+        document.querySelector('form').requestSubmit();
+      }
+      else if (typeof interfaces[selection] === 'string') {
+        textarea.value = 'No functions: the interface ID for this ERC is hardcoded.';
+        output.textContent = interfaces[selection];
       }
       else {
         textarea.value = interfaces[selection].join('\n');
+        document.querySelector('form').requestSubmit();
       }
-      document.querySelector('form').requestSubmit();
     });
 
     document.querySelector('form').addEventListener('submit', e => {
diff --git a/interfaces.json b/interfaces.json
index 1af29d9..5d0c281 100644
--- a/interfaces.json
+++ b/interfaces.json
@@ -57,6 +57,7 @@
   "ERC-1363-Spender": [
     "onApprovalReceived(address owner, uint256 value, bytes memory data)"
   ],
+  "ERC-4906": "0x49064906",
   "ERC-5805": [
     "getVotes(address account)",
     "getPastVotes(address account, uint256 timepoint)",
-- 
2.47.3