Handle starting a call while listen to a broadcast (#9764)

src/LegacyCallHandler.tsx

@@ -63,6 +63,8 @@ import { OpenInviteDialogPayload } from "./dispatcher/payloads/OpenInviteDialogP
 import { findDMForUser } from "./utils/dm/findDMForUser";
 import { getJoinedNonFunctionalMembers } from "./utils/room/getJoinedNonFunctionalMembers";
 import { localNotificationsAreSilenced } from "./utils/notifications";
+import { SdkContextClass } from "./contexts/SDKContext";
+import { showCantStartACallDialog } from "./voice-broadcast/utils/showCantStartACallDialog";
 
 export const PROTOCOL_PSTN = "m.protocol.pstn";
 export const PROTOCOL_PSTN_PREFIXED = "im.vector.protocol.pstn";
@@ -932,6 +934,15 @@ export default class LegacyCallHandler extends EventEmitter {
     }
 
     public async placeCall(roomId: string, type?: CallType, transferee?: MatrixCall): Promise<void> {
+        // Pause current broadcast, if any
+        SdkContextClass.instance.voiceBroadcastPlaybacksStore.getCurrent()?.pause();
+
+        if (SdkContextClass.instance.voiceBroadcastRecordingsStore.getCurrent()) {
+            // Do not start a call, if recording a broadcast
+            showCantStartACallDialog();
+            return;
+        }
+
         // We might be using managed hybrid widgets
         if (isManagedHybridWidgetEnabled()) {
             await addManagedHybridWidget(roomId);

src/i18n/strings/en_EN.json

@@ -648,6 +648,8 @@
     "You are already recording a voice broadcast. Please end your current voice broadcast to start a new one.": "You are already recording a voice broadcast. Please end your current voice broadcast to start a new one.",
     "You don't have the required permissions to start a voice broadcast in this room. Contact a room administrator to upgrade your permissions.": "You don't have the required permissions to start a voice broadcast in this room. Contact a room administrator to upgrade your permissions.",
     "Someone else is already recording a voice broadcast. Wait for their voice broadcast to end to start a new one.": "Someone else is already recording a voice broadcast. Wait for their voice broadcast to end to start a new one.",
+    "Can’t start a call": "Can’t start a call",
+    "You can’t start a call as you are currently recording a live broadcast. Please end your live broadcast in order to start a call.": "You can’t start a call as you are currently recording a live broadcast. Please end your live broadcast in order to start a call.",
     "You ended a <a>voice broadcast</a>": "You ended a <a>voice broadcast</a>",
     "%(senderName)s ended a <a>voice broadcast</a>": "%(senderName)s ended a <a>voice broadcast</a>",
     "You ended a voice broadcast": "You ended a voice broadcast",

src/stores/RoomViewStore.tsx

@@ -56,6 +56,7 @@ import {
     doMaybeSetCurrentVoiceBroadcastPlayback,
 } from "../voice-broadcast";
 import { IRoomStateEventsActionPayload } from "../actions/MatrixActionCreators";
+import { showCantStartACallDialog } from "../voice-broadcast/utils/showCantStartACallDialog";
 
 const NUM_JOIN_RETRY = 5;
 
@@ -180,6 +181,16 @@ export class RoomViewStore extends EventEmitter {
             return;
         }
 
+        if (newState.viewingCall) {
+            // Pause current broadcast, if any
+            this.stores.voiceBroadcastPlaybacksStore.getCurrent()?.pause();
+
+            if (this.stores.voiceBroadcastRecordingsStore.getCurrent()) {
+                showCantStartACallDialog();
+                newState.viewingCall = false;
+            }
+        }
+
         const lastRoomId = this.state.roomId;
         this.state = Object.assign(this.state, newState);
         if (lastRoomId !== this.state.roomId) {

src/voice-broadcast/utils/showCantStartACallDialog.tsx

@@ -0,0 +1,36 @@
+/*
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import React from "react";
+
+import InfoDialog from "../../components/views/dialogs/InfoDialog";
+import { _t } from "../../languageHandler";
+import Modal from "../../Modal";
+
+export const showCantStartACallDialog = () => {
+    Modal.createDialog(InfoDialog, {
+        title: _t("Can’t start a call"),
+        description: (
+            <p>
+                {_t(
+                    "You can’t start a call as you are currently recording a live broadcast. " +
+                        "Please end your live broadcast in order to start a call.",
+                )}
+            </p>
+        ),
+        hasCloseButton: true,
+    });
+};