UseCreateAutoDisposedViewModel for audio player (#31503)

* refactor: useCreateAutoDisposedViewModel for audio player

* Update src/viewmodels/audio/AudioPlayerViewModel.ts

Co-authored-by: Michael Telatynski <7t3chguy@gmail.com>

---------

Co-authored-by: Michael Telatynski <7t3chguy@gmail.com>

src/components/views/messages/MAudioBody.tsx

@@ -6,11 +6,11 @@ SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Com
 Please see LICENSE files in the repository root for full details.
 */
 
-import React, { type JSX, useEffect, useMemo } from "react";
+import React, { type JSX, useEffect } from "react";
 import { logger } from "matrix-js-sdk/src/logger";
 import { type IContent } from "matrix-js-sdk/src/matrix";
 import { type MediaEventContent } from "matrix-js-sdk/src/types";
-import { AudioPlayerView } from "@element-hq/web-shared-components";
+import { AudioPlayerView, useCreateAutoDisposedViewModel } from "@element-hq/web-shared-components";
 
 import { type Playback } from "../../../audio/Playback";
 import InlineSpinner from "../elements/InlineSpinner";
@@ -132,13 +132,10 @@ interface AudioPlayerProps {
  * AudioPlayer component that initializes the AudioPlayerViewModel and renders the AudioPlayerView.
  */
 function AudioPlayer({ playback, mediaName }: AudioPlayerProps): JSX.Element {
-    const vm = useMemo(() => new AudioPlayerViewModel({ playback, mediaName }), [playback, mediaName]);
-
+    const vm = useCreateAutoDisposedViewModel(() => new AudioPlayerViewModel({ playback, mediaName }));
     useEffect(() => {
-        return () => {
-            vm.dispose();
-        };
-    }, [vm]);
+        vm.setProps({ playback, mediaName });
+    }, [playback, mediaName, vm]);
 
     return <AudioPlayerView vm={vm} />;
 }

src/viewmodels/audio/AudioPlayerViewModel.ts

@@ -141,4 +141,13 @@ export class AudioPlayerViewModel
     public onSeekbarChange = async (ev: ChangeEvent<HTMLInputElement>): Promise<void> => {
         await this.props.playback.skipTo((Number(ev.target.value) / 100) * this.props.playback.durationSeconds);
     };
+
+    /**
+     * Updates the properties of the view model and recomputes the snapshot.
+     * @param newProps
+     */
+    public setProps(newProps: Partial<Props>): void {
+        this.props = { ...this.props, ...newProps };
+        this.setSnapshot();
+    }
 }

test/viewmodels/audio/AudioPlayerViewModel-test.tsx

@@ -64,4 +64,12 @@ describe("AudioPlayerViewModel", () => {
         vm.onKeyDown(event);
         expect(playback.skipTo).toHaveBeenCalledWith(10 + 5); // 5 seconds forward
     });
+
+    it("should update snapshot when setProps is called with new mediaName", () => {
+        const vm = new AudioPlayerViewModel({ playback, mediaName: "oldName" });
+        expect(vm.getSnapshot().mediaName).toBe("oldName");
+
+        vm.setProps({ mediaName: "newName" });
+        expect(vm.getSnapshot().mediaName).toBe("newName");
+    });
 });