From a501d698aabbf6a99909b80906a3aae5c5552c87 Mon Sep 17 00:00:00 2001
From: Travis Ralston <travpc@gmail.com>
Date: Tue, 27 Oct 2020 19:20:25 -0600
Subject: [PATCH] Add a UI Feature flag for room history settings

---
 .../tabs/room/SecurityRoomSettingsTab.js         | 16 ++++++++++++----
 src/settings/Settings.ts                         |  4 ++++
 src/settings/UIFeature.ts                        |  1 +
 3 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/src/components/views/settings/tabs/room/SecurityRoomSettingsTab.js b/src/components/views/settings/tabs/room/SecurityRoomSettingsTab.js
index 0a0c693158..f72e78fa3f 100644
--- a/src/components/views/settings/tabs/room/SecurityRoomSettingsTab.js
+++ b/src/components/views/settings/tabs/room/SecurityRoomSettingsTab.js
@@ -25,6 +25,7 @@ import QuestionDialog from "../../../dialogs/QuestionDialog";
 import StyledRadioGroup from '../../../elements/StyledRadioGroup';
 import {SettingLevel} from "../../../../../settings/SettingLevel";
 import SettingsStore from "../../../../../settings/SettingsStore";
+import {UIFeature} from "../../../../../settings/UIFeature";
 
 export default class SecurityRoomSettingsTab extends React.Component {
     static propTypes = {
@@ -350,6 +351,16 @@ export default class SecurityRoomSettingsTab extends React.Component {
             />;
         }
 
+        let historySection = (<>
+            <span className='mx_SettingsTab_subheading'>{_t("Who can read history?")}</span>
+            <div className='mx_SettingsTab_section mx_SettingsTab_subsectionText'>
+                {this._renderHistory()}
+            </div>
+        </>);
+        if (!SettingsStore.getValue(UIFeature.RoomHistorySettings)) {
+            historySection = null;
+        }
+
         return (
             <div className="mx_SettingsTab mx_SecurityRoomSettingsTab">
                 <div className="mx_SettingsTab_heading">{_t("Security & Privacy")}</div>
@@ -371,10 +382,7 @@ export default class SecurityRoomSettingsTab extends React.Component {
                     {this._renderRoomAccess()}
                 </div>
 
-                <span className='mx_SettingsTab_subheading'>{_t("Who can read history?")}</span>
-                <div className='mx_SettingsTab_section mx_SettingsTab_subsectionText'>
-                    {this._renderHistory()}
-                </div>
+                {historySection}
             </div>
         );
     }
diff --git a/src/settings/Settings.ts b/src/settings/Settings.ts
index c8430a1767..6f4357973a 100644
--- a/src/settings/Settings.ts
+++ b/src/settings/Settings.ts
@@ -630,6 +630,10 @@ export const SETTINGS: {[setting: string]: ISetting} = {
         supportedLevels: LEVELS_ACCOUNT_SETTINGS,
         default: null,
     },
+    [UIFeature.RoomHistorySettings]: {
+        supportedLevels: LEVELS_UI_FEATURE,
+        default: true,
+    },
     [UIFeature.AdvancedEncryption]: {
         supportedLevels: LEVELS_UI_FEATURE,
         default: true,
diff --git a/src/settings/UIFeature.ts b/src/settings/UIFeature.ts
index 231752e19c..82dfdf0bb5 100644
--- a/src/settings/UIFeature.ts
+++ b/src/settings/UIFeature.ts
@@ -31,4 +31,5 @@ export enum UIFeature {
     Flair = "UIFeature.flair",
     Communities = "UIFeature.communities",
     AdvancedSettings = "UIFeature.advancedSettings",
+    RoomHistorySettings = "UIFeature.roomHistorySettings",
 }