From 610e7923945dd2e1dd8475b2e6df9fbe5187d118 Mon Sep 17 00:00:00 2001
From: Timo <toger5@hotmail.de>
Date: Thu, 15 May 2025 17:20:12 +0200
Subject: [PATCH] rename setOutputDevices-> setAvailableOutputDevices

---
 docs/controls.md                    |  3 ++-
 src/controls.ts                     | 17 ++++++++++++-----
 src/livekit/MediaDevicesContext.tsx | 23 +++++++++++++++++------
 3 files changed, 31 insertions(+), 12 deletions(-)

diff --git a/docs/controls.md b/docs/controls.md
index 2bc17b24..4405a9f3 100644
--- a/docs/controls.md
+++ b/docs/controls.md
@@ -12,7 +12,8 @@ A few aspects of Element Call's interface can be controlled through a global API
 
 These functions must be used in conjunction with the `controlledOutput` URL parameter in order to have any effect.
 
-- `controls.setOutputDevices(devices: { id: string, name: string, forEarpiece?: boolean }[]): void` Sets the list of available audio outputs. `forEarpiece` is used on ios only.
+- `controls.setAvailableOutputDevices(devices: { id: string, name: string, forEarpiece?: boolean }[]): void` Sets the list of available audio outputs. `forEarpiece` is used on ios only.
   It flags the device that should be used if the user selects earpice mode. This should be the main (stereo loudspeaker) of the device.
 - `controls.onOutputDeviceSelect: ((id: string) => void) | undefined` Callback called whenever the user or application selects a new audio output.
+- `controls.setOutputDevice(id: string): void` Sets the selected audio device in EC menu. This should be used if the os decides to automatically switch to bluetooth.
 - `controls.setOutputEnabled(enabled: boolean)` Enables/disables all audio output from the application. This can be useful for temporarily pausing audio while the controlling application is switching output devices. Output is enabled by default.
diff --git a/src/controls.ts b/src/controls.ts
index 72f80260..2bf9933d 100644
--- a/src/controls.ts
+++ b/src/controls.ts
@@ -11,7 +11,8 @@ export interface Controls {
   canEnterPip(): boolean;
   enablePip(): void;
   disablePip(): void;
-  setOutputDevices(devices: OutputDevice[]): void;
+  setAvailableOutputDevices(devices: OutputDevice[]): void;
+  setOutputDevice(id: string): void;
   onOutputDeviceSelect?: (id: string) => void;
   setOutputEnabled(enabled: boolean): void;
 }
@@ -23,7 +24,8 @@ export interface OutputDevice {
 }
 
 export const setPipEnabled$ = new Subject<boolean>();
-export const setOutputDevices$ = new Subject<OutputDevice[]>();
+export const setAvailableOutputDevices$ = new Subject<OutputDevice[]>();
+export const setOutputDevice$ = new Subject<string>();
 export const setOutputEnabled$ = new Subject<boolean>();
 
 window.controls = {
@@ -38,10 +40,15 @@ window.controls = {
     if (!setPipEnabled$.observed) throw new Error("No call is running");
     setPipEnabled$.next(false);
   },
-  setOutputDevices(devices: OutputDevice[]): void {
-    if (!setOutputDevices$.observed)
+  setAvailableOutputDevices(devices: OutputDevice[]): void {
+    if (!setAvailableOutputDevices$.observed)
       throw new Error("Output controls are disabled");
-    setOutputDevices$.next(devices);
+    setAvailableOutputDevices$.next(devices);
+  },
+  setOutputDevice(id: string): void {
+    if (!setOutputDevice$.observed)
+      throw new Error("Output controls are disabled");
+    setOutputDevice$.next(id);
   },
   setOutputEnabled(enabled: boolean): void {
     if (!setOutputEnabled$.observed)
diff --git a/src/livekit/MediaDevicesContext.tsx b/src/livekit/MediaDevicesContext.tsx
index 3a3dd081..319f492c 100644
--- a/src/livekit/MediaDevicesContext.tsx
+++ b/src/livekit/MediaDevicesContext.tsx
@@ -29,7 +29,11 @@ import {
   alwaysShowIphoneEarpiece as alwaysShowIphoneEarpieceSetting,
   type Setting,
 } from "../settings/settings";
-import { type OutputDevice, setOutputDevices$ } from "../controls";
+import {
+  type OutputDevice,
+  setAvailableOutputDevices$,
+  setOutputDevice$,
+} from "../controls";
 import { useUrlParams } from "../UrlParams";
 
 export const EARPIECE_CONFIG_ID = "earpiece-id";
@@ -299,7 +303,7 @@ function useControlledOutput(): MediaDeviceHandle {
         startWith(alwaysShowIphoneEarpieceSetting.getValue()),
         map((v) => v || navigator.userAgent.includes("iPhone")),
       );
-      const outputDeviceData$ = setOutputDevices$.pipe(
+      const outputDeviceData$ = setAvailableOutputDevices$.pipe(
         startWith<OutputDevice[]>([]),
         map((devices) => {
           const physicalDeviceForEarpiceMode = devices.find(
@@ -316,15 +320,22 @@ function useControlledOutput(): MediaDeviceHandle {
 
       return combineLatest([outputDeviceData$, showEarpice$]).pipe(
         map(([{ devicesMap, physicalDeviceForEarpiceMode }, showEarpiece]) => {
-          if (showEarpiece && !!physicalDeviceForEarpiceMode)
-            devicesMap.set(EARPIECE_CONFIG_ID, { type: "earpiece" });
-          return { available: devicesMap, physicalDeviceForEarpiceMode };
+          let available = devicesMap;
+          if (showEarpiece && !!physicalDeviceForEarpiceMode) {
+            available = new Map([
+              ...devicesMap.entries(),
+              [EARPIECE_CONFIG_ID, { type: "earpiece" }],
+            ]);
+          }
+          return { available, physicalDeviceForEarpiceMode };
         }),
       );
     }),
   );
-
   const [preferredId, setPreferredId] = useSetting(audioOutputSetting);
+  useEffect(() => {
+    setOutputDevice$.subscribe((id) => setPreferredId(id));
+  }, [setPreferredId]);
 
   const selectedId = useMemo(() => {
     if (available.size) {