From d042a5b319d81baff32de97a14310b7f78a2a7df Mon Sep 17 00:00:00 2001
From: Will Scullin <scullin@scullinsteel.com>
Date: Sun, 22 Jan 2023 18:31:35 -0800
Subject: [PATCH] Don't reload already loaded disk (#174)

---
 js/ui/apple2.ts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/js/ui/apple2.ts b/js/ui/apple2.ts
index db081d5..39d7dc0 100644
--- a/js/ui/apple2.ts
+++ b/js/ui/apple2.ts
@@ -46,6 +46,7 @@ let lastFrames = 0;
 let lastRenderedFrames = 0;
 
 let hashtag = document.location.hash;
+let oldHashFiles: string[] = [];
 
 const options = new Options();
 const optionsModal = new OptionsModal(options);
@@ -748,6 +749,9 @@ function processHash(hash: string) {
             break;
         }
         const file = files[idx];
+        if (file === oldHashFiles[idx]) {
+            continue;
+        }
         if (file.indexOf('://') > 0) {
             const parts = file.split('.');
             const ext = parts[parts.length - 1].toLowerCase();
@@ -760,6 +764,7 @@ function processHash(hash: string) {
             loadAjax(drive, 'json/disks/' + file + '.json');
         }
     }
+    oldHashFiles = files;
 }
 
 export function updateUI() {