Add input device selection during voice broadcast (#9620)

src/hooks/useAudioDeviceSelection.ts

@@ -0,0 +1,76 @@
+/*
+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 { useRef, useState } from "react";
+
+import { _t } from "../languageHandler";
+import MediaDeviceHandler, { MediaDeviceKindEnum } from "../MediaDeviceHandler";
+import { requestMediaPermissions } from "../utils/media/requestMediaPermissions";
+
+interface State {
+    devices: MediaDeviceInfo[];
+    device: MediaDeviceInfo | null;
+}
+
+export const useAudioDeviceSelection = (
+    onDeviceChanged?: (device: MediaDeviceInfo) => void,
+) => {
+    const shouldRequestPermissionsRef = useRef<boolean>(true);
+    const [state, setState] = useState<State>({
+        devices: [],
+        device: null,
+    });
+
+    if (shouldRequestPermissionsRef.current) {
+        shouldRequestPermissionsRef.current = false;
+        requestMediaPermissions(false).then((stream: MediaStream | undefined) => {
+            MediaDeviceHandler.getDevices().then(({ audioinput }) => {
+                MediaDeviceHandler.getDefaultDevice(audioinput);
+                const deviceFromSettings = MediaDeviceHandler.getAudioInput();
+                const device = audioinput.find((d) => {
+                    return d.deviceId === deviceFromSettings;
+                }) || audioinput[0];
+                setState({
+                    ...state,
+                    devices: audioinput,
+                    device,
+                });
+                stream?.getTracks().forEach(t => t.stop());
+            });
+        });
+    }
+
+    const setDevice = (device: MediaDeviceInfo) => {
+        const shouldNotify = device.deviceId !== state.device?.deviceId;
+        MediaDeviceHandler.instance.setDevice(device.deviceId, MediaDeviceKindEnum.AudioInput);
+
+        setState({
+            ...state,
+            device,
+        });
+
+        if (shouldNotify) {
+            onDeviceChanged?.(device);
+        }
+    };
+
+    return {
+        currentDevice: state.device,
+        currentDeviceLabel: state.device?.label || _t("Default Device"),
+        devices: state.devices,
+        setDevice,
+    };
+};