From 29dff80731d964c990a8e850939abf40ec2212f6 Mon Sep 17 00:00:00 2001
From: Alexey Nurgaliev <atnurgaliev@gmail.com>
Date: Mon, 5 Feb 2024 21:36:19 +0300
Subject: [PATCH] ability to disable localStorage (#764)

---
 data/emulator.js | 11 ++++++++---
 data/loader.js   |  1 +
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/data/emulator.js b/data/emulator.js
index 62722b0..4ea43a3 100644
--- a/data/emulator.js
+++ b/data/emulator.js
@@ -3744,7 +3744,7 @@ class EmulatorJS {
         };
     }
     saveSettings() {
-        if (!window.localStorage || !this.settingsLoaded) return;
+        if (!window.localStorage || this.config.disableLocalStorage || !this.settingsLoaded) return;
         const coreSpecific = {
             controlSettings: this.controls,
             settings: this.settings,
@@ -3758,7 +3758,12 @@ class EmulatorJS {
         localStorage.setItem("ejs-"+this.getCore()+"-settings", JSON.stringify(coreSpecific));
     }
     loadRewindEnabled() {
-        if (!window.localStorage) return;
+        if (!window.localStorage || this.config.disableLocalStorage) {
+            if (this.config.defaultOptions && this.config.defaultOptions.rewindEnabled) {
+                return this.config.defaultOptions.rewindEnabled === 'enabled';
+            }
+            return false;
+        }
         let coreSpecific = localStorage.getItem("ejs-"+this.getCore()+"-settings");
         try {
            coreSpecific = JSON.parse(coreSpecific);
@@ -3772,7 +3777,7 @@ class EmulatorJS {
         }
     }
     loadSettings() {
-        if (!window.localStorage) return;
+        if (!window.localStorage || this.config.disableLocalStorage) return;
         this.settingsLoaded = true;
         let ejs_settings = localStorage.getItem("ejs-settings");
         let coreSpecific = localStorage.getItem("ejs-"+this.getCore()+"-settings");
diff --git a/data/loader.js b/data/loader.js
index 0bb7200..e5ec4ae 100644
--- a/data/loader.js
+++ b/data/loader.js
@@ -110,6 +110,7 @@
     config.screenRecording = window.EJS_screenRecording;
     config.externalFiles = window.EJS_externalFiles;
     config.disableDatabases = window.EJS_disableDatabases;
+    config.disableLocalStorage = window.EJS_disableLocalStorage;
     
     if (typeof window.EJS_language === "string" && window.EJS_language !== "en-US") {
         try {