UI Feature Flag: Disable VoIP

src/components/structures/MatrixChat.tsx

@@ -79,6 +79,7 @@ import { SettingLevel } from "../../settings/SettingLevel";
 import { leaveRoomBehaviour } from "../../utils/membership";
 import CreateCommunityPrototypeDialog from "../views/dialogs/CreateCommunityPrototypeDialog";
 import ThreepidInviteStore, { IThreepidInvite, IThreepidInviteWireFormat } from "../../stores/ThreepidInviteStore";
+import {UIFeature} from "../../settings/UIFeature";
 
 /** constants for MatrixChat.state.view */
 export enum Views {
@@ -1373,6 +1374,8 @@ export default class MatrixChat extends React.PureComponent<IProps, IState> {
             });
         });
         cli.on('Call.incoming', function(call) {
+            // Check if the VoIP UI has been disabled
+            if (!SettingsStore.getValue(UIFeature.Voip)) return;
             // we dispatch this synchronously to make sure that the event
             // handlers on the call are set up immediately (so that if
             // we get an immediate hangup, we don't get a stuck call)

src/components/views/dialogs/UserSettingsDialog.js

@@ -32,6 +32,7 @@ import FlairUserSettingsTab from "../settings/tabs/user/FlairUserSettingsTab";
 import * as sdk from "../../../index";
 import SdkConfig from "../../../SdkConfig";
 import MjolnirUserSettingsTab from "../settings/tabs/user/MjolnirUserSettingsTab";
+import {UIFeature} from "../../../settings/UIFeature";
 
 export const USER_GENERAL_TAB = "USER_GENERAL_TAB";
 export const USER_APPEARANCE_TAB = "USER_APPEARANCE_TAB";
@@ -104,12 +105,16 @@ export default class UserSettingsDialog extends React.Component {
             "mx_UserSettingsDialog_preferencesIcon",
             <PreferencesUserSettingsTab />,
         ));
-        tabs.push(new Tab(
-            USER_VOICE_TAB,
-            _td("Voice & Video"),
-            "mx_UserSettingsDialog_voiceIcon",
-            <VoiceUserSettingsTab />,
-        ));
+
+        if (SettingsStore.getValue(UIFeature.Voip)) {
+            tabs.push(new Tab(
+                USER_VOICE_TAB,
+                _td("Voice & Video"),
+                "mx_UserSettingsDialog_voiceIcon",
+                <VoiceUserSettingsTab />,
+            ));
+        }
+
         tabs.push(new Tab(
             USER_SECURITY_TAB,
             _td("Security & Privacy"),

src/settings/Settings.ts

@@ -588,6 +588,7 @@ export const SETTINGS: {[setting: string]: ISetting} = {
     "showCallButtonsInComposer": {
         supportedLevels: LEVELS_DEVICE_ONLY_SETTINGS_WITH_CONFIG,
         default: true,
+        controller: new UIFeatureController(UIFeature.Voip),
     },
     "e2ee.manuallyVerifyAllSessions": {
         supportedLevels: LEVELS_DEVICE_ONLY_SETTINGS,
@@ -622,4 +623,8 @@ export const SETTINGS: {[setting: string]: ISetting} = {
         supportedLevels: LEVELS_UI_FEATURE,
         default: true,
     },
+    [UIFeature.Voip]: {
+        supportedLevels: LEVELS_UI_FEATURE,
+        default: true,
+    },
 };

src/settings/UIFeature.ts

@@ -18,4 +18,5 @@ limitations under the License.
 export enum UIFeature {
     URLPreviews = "UIFeature.urlPreviews",
     Widgets = "UIFeature.widgets",
+    Voip = "UIFeature.voip",
 }