Add sound effect volume slider

public/locales/en-GB/app.json

@@ -144,6 +144,10 @@
   "room_auth_view_eula_caption": "By clicking \"Continue\", you agree to our <2>End User Licensing Agreement (EULA)</2>",
   "screenshare_button_label": "Share screen",
   "settings": {
+    "audio_tab": {
+      "effect_volume_description": "Adjust the volume at which reactions and hand raised effects play",
+      "effect_volume_label": "Sound effect volume"
+    },
     "developer_settings_label": "Developer Settings",
     "developer_settings_label_description": "Expose developer settings in the settings window.",
     "developer_tab_title": "Developer",

src/room/InCallView.tsx

@@ -85,7 +85,11 @@ import handSoundOgg from "../sound/raise_hand.ogg?url";
 import handSoundMp3 from "../sound/raise_hand.mp3?url";
 import { ReactionsAudioRenderer } from "./ReactionAudioRenderer";
 import { useSwitchCamera } from "./useSwitchCamera";
-import { showReactions, useSetting } from "../settings/settings";
+import {
+  soundEffectVolumeSetting,
+  showReactions,
+  useSetting,
+} from "../settings/settings";
 
 const canScreenshare = "getDisplayMedia" in (navigator.mediaDevices ?? {});
 
@@ -182,6 +186,7 @@ export const InCallView: FC<InCallViewProps> = ({
   onShareClick,
 }) => {
   const [shouldShowReactions] = useSetting(showReactions);
+  const [soundEffectVolume] = useSetting(soundEffectVolumeSetting);
   const { supportsReactions, raisedHands, reactions } = useReactions();
   const raisedHandCount = useMemo(
     () => Object.keys(raisedHands).length,
@@ -344,11 +349,17 @@ export const InCallView: FC<InCallViewProps> = ({
       return;
     }
     if (previousRaisedHandCount < raisedHandCount) {
+      handRaisePlayer.current.volume = soundEffectVolume;
       handRaisePlayer.current.play().catch((ex) => {
         logger.warn("Failed to play raise hand sound", ex);
       });
     }
-  }, [raisedHandCount, handRaisePlayer, previousRaisedHandCount]);
+  }, [
+    raisedHandCount,
+    handRaisePlayer,
+    previousRaisedHandCount,
+    soundEffectVolume,
+  ]);
 
   useEffect(() => {
     widget?.api.transport

src/room/ReactionAudioRenderer.test.tsx

@@ -17,7 +17,10 @@ import {
 } from "../utils/testReactions";
 import { ReactionsAudioRenderer } from "./ReactionAudioRenderer";
 import { GenericReaction, ReactionSet } from "../reactions";
-import { playReactionsSound } from "../settings/settings";
+import {
+  playReactionsSound,
+  soundEffectVolumeSetting,
+} from "../settings/settings";
 
 const memberUserIdAlice = "@alice:example.org";
 const memberUserIdBob = "@bob:example.org";
@@ -49,6 +52,7 @@ function TestComponent({
 const originalPlayFn = window.HTMLMediaElement.prototype.play;
 afterAll(() => {
   playReactionsSound.setValue(playReactionsSound.defaultValue);
+  soundEffectVolumeSetting.setValue(soundEffectVolumeSetting.defaultValue);
   window.HTMLMediaElement.prototype.play = originalPlayFn;
 });
 
@@ -125,6 +129,28 @@ test("will play the generic audio sound when there is soundless reaction", () =>
   expect(audioIsPlaying[0]).toContain(GenericReaction.sound?.ogg);
 });
 
+test("will play an audio sound with the correct volume", () => {
+  playReactionsSound.setValue(true);
+  soundEffectVolumeSetting.setValue(0.5);
+  const room = new MockRoom(memberUserIdAlice);
+  const rtcSession = new MockRTCSession(room, membership);
+  const { getByTestId } = render(<TestComponent rtcSession={rtcSession} />);
+
+  // Find the first reaction with a sound effect
+  const chosenReaction = ReactionSet.find((r) => !!r.sound);
+  if (!chosenReaction) {
+    throw Error(
+      "No reactions have sounds configured, this test cannot succeed",
+    );
+  }
+  act(() => {
+    room.testSendReaction(memberEventAlice, chosenReaction, membership);
+  });
+  expect((getByTestId(chosenReaction.name) as HTMLAudioElement).volume).toEqual(
+    0.5,
+  );
+});
+
 test("will play multiple audio sounds when there are multiple different reactions", () => {
   const audioIsPlaying: string[] = [];
   window.HTMLMediaElement.prototype.play = async function (): Promise<void> {

src/room/ReactionAudioRenderer.tsx

@@ -8,12 +8,17 @@ Please see LICENSE in the repository root for full details.
 import { ReactNode, useEffect, useRef } from "react";
 
 import { useReactions } from "../useReactions";
-import { playReactionsSound, useSetting } from "../settings/settings";
+import {
+  playReactionsSound,
+  soundEffectVolumeSetting as effectSoundVolumeSetting,
+  useSetting,
+} from "../settings/settings";
 import { GenericReaction, ReactionSet } from "../reactions";
 
 export function ReactionsAudioRenderer(): ReactNode {
   const { reactions } = useReactions();
   const [shouldPlay] = useSetting(playReactionsSound);
+  const [effectSoundVolume] = useSetting(effectSoundVolumeSetting);
   const audioElements = useRef<Record<string, HTMLAudioElement | null>>({});
 
   useEffect(() => {
@@ -30,10 +35,11 @@ export function ReactionsAudioRenderer(): ReactNode {
       const audioElement =
         audioElements.current[reactionName] ?? audioElements.current.generic;
       if (audioElement?.paused) {
+        audioElement.volume = effectSoundVolume;
         void audioElement.play();
       }
     }
-  }, [audioElements, shouldPlay, reactions]);
+  }, [audioElements, shouldPlay, reactions, effectSoundVolume]);
 
   // Do not render any audio elements if playback is disabled. Will save
   // audio file fetches.

src/settings/SettingsModal.module.css

@@ -16,3 +16,20 @@ Please see LICENSE in the repository root for full details.
 .fieldRowText {
   margin-bottom: 0;
 }
+
+.volumeSlider {
+  margin-top: var(--cpd-space-2x);
+}
+
+.volumeSlider > label {
+  margin-bottom: var(--cpd-space-1x);
+  display: block;
+}
+
+.volumeSlider > span {
+  max-width: 20em;
+}
+
+.volumeSlider > p {
+  color: var(--cpd-color-text-secondary);
+}

src/settings/SettingsModal.tsx

@@ -8,7 +8,7 @@ Please see LICENSE in the repository root for full details.
 import { ChangeEvent, FC, ReactNode, useCallback } from "react";
 import { Trans, useTranslation } from "react-i18next";
 import { MatrixClient } from "matrix-js-sdk/src/matrix";
-import { Dropdown, Text } from "@vector-im/compound-web";
+import { Dropdown, Separator, Text } from "@vector-im/compound-web";
 
 import { Modal } from "../Modal";
 import styles from "./SettingsModal.module.css";
@@ -28,9 +28,11 @@ import {
   developerSettingsTab as developerSettingsTabSetting,
   duplicateTiles as duplicateTilesSetting,
   useOptInAnalytics,
+  soundEffectVolumeSetting,
 } from "./settings";
 import { isFirefox } from "../Platform";
 import { PreferencesSettingsTab } from "./PreferencesSettingsTab";
+import { Slider } from "../Slider";
 
 type SettingsTab =
   | "audio"
@@ -116,6 +118,8 @@ export const SettingsModal: FC<Props> = ({
   const devices = useMediaDevices();
   useMediaDeviceNames(devices, open);
 
+  const [soundVolume, setSoundVolume] = useSetting(soundEffectVolumeSetting);
+
   const audioTab: Tab<SettingsTab> = {
     key: "audio",
     name: t("common.audio"),
@@ -127,6 +131,19 @@ export const SettingsModal: FC<Props> = ({
             devices.audioOutput,
             t("settings.speaker_device_selection_label"),
           )}
+        <Separator />
+        <div className={styles.volumeSlider}>
+          <label>{t("settings.audio_tab.effect_volume_label")}</label>
+          <p>{t("settings.audio_tab.effect_volume_description")}</p>
+          <Slider
+            label={t("video_tile.volume")}
+            value={soundVolume}
+            onValueChange={setSoundVolume}
+            min={0}
+            max={1}
+            step={0.01}
+          />
+        </div>
       </>
     ),
   };

src/settings/settings.ts

@@ -100,4 +100,9 @@ export const playReactionsSound = new Setting<boolean>(
   true,
 );
 
+export const soundEffectVolumeSetting = new Setting<number>(
+  "sound-effect-volume",
+  1,
+);
+
 export const alwaysShowSelf = new Setting<boolean>("always-show-self", true);

src/useReactions.tsx

@@ -182,7 +182,7 @@ export const ReactionsProvider = ({
 
   // This effect handles any *live* reaction/redactions in the room.
   useEffect(() => {
-    const reactionTimeouts = new Set<NodeJS.Timeout>();
+    const reactionTimeouts = new Set<number>();
     const handleReactionEvent = (event: MatrixEvent): void => {
       if (event.isSending()) {
         // Skip any events that are still sending.
@@ -245,7 +245,7 @@ export const ReactionsProvider = ({
             // We've still got a reaction from this user, ignore it to prevent spamming
             return reactions;
           }
-          const timeout = setTimeout(() => {
+          const timeout = window.setTimeout(() => {
             // Clear the reaction after some time.
             setReactions(({ [sender]: _unused, ...remaining }) => remaining);
             reactionTimeouts.delete(timeout);