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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| // Copyright (c) VolcanicArts. Licensed under the GPL-3.0 License. | ||
| // See the LICENSE file in the repository root for full license text. | ||
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|
||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
| using Windows.Media.Control; | ||
| using osu.Framework.Extensions.IEnumerableExtensions; | ||
|
|
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| namespace VRCOSC.Game.Modules; | ||
|
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| public class WindowsMediaInterface | ||
| { | ||
| public Action<GlobalSystemMediaTransportControlsSession?>? OnCurrentSessionChanged; | ||
| public Action<GlobalSystemMediaTransportControlsSession, GlobalSystemMediaTransportControlsSessionPlaybackInfo>? OnAnyPlaybackInfoChanged; | ||
| public Action<GlobalSystemMediaTransportControlsSession, GlobalSystemMediaTransportControlsSessionMediaProperties>? OnAnyMediaPropertiesChanged; | ||
| public Action<GlobalSystemMediaTransportControlsSession, GlobalSystemMediaTransportControlsSessionTimelineProperties>? OnAnyTimelinePropertiesChanged; | ||
|
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| private readonly List<GlobalSystemMediaTransportControlsSession> currentSessions = new(); | ||
| private GlobalSystemMediaTransportControlsSessionManager sessionManager = null!; | ||
|
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| public GlobalSystemMediaTransportControlsSession? CurrentSession => sessionManager.GetCurrentSession(); | ||
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| public async void Initialise() | ||
| { | ||
| sessionManager = await GlobalSystemMediaTransportControlsSessionManager.RequestAsync(); | ||
| } | ||
|
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| public void Hook() | ||
| { | ||
| sessionManager.CurrentSessionChanged += currentSessionChanged; | ||
| sessionManager.SessionsChanged += sessionsChanged; | ||
|
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| auditSessions(); | ||
| OnCurrentSessionChanged?.Invoke(CurrentSession); | ||
| } | ||
|
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| public void UnHook() | ||
| { | ||
| sessionManager.CurrentSessionChanged -= currentSessionChanged; | ||
| sessionManager.SessionsChanged -= sessionsChanged; | ||
|
|
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| currentSessions.Clear(); | ||
| } | ||
|
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| private void currentSessionChanged(GlobalSystemMediaTransportControlsSessionManager _, CurrentSessionChangedEventArgs _2) | ||
| { | ||
| OnCurrentSessionChanged?.Invoke(CurrentSession); | ||
| } | ||
|
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| private void sessionsChanged(GlobalSystemMediaTransportControlsSessionManager _, SessionsChangedEventArgs _2) | ||
| { | ||
| auditSessions(); | ||
|
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| // Session changes can occur due to a session closing | ||
| // To avoid repeat code, we can just detect what may have closed rather than listening for the closed event and checking for closed sessions | ||
| removeClosedSessions(); | ||
| } | ||
|
|
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| private void auditSessions() | ||
| { | ||
| sessionManager.GetSessions().Where(controlSession => !currentSessions.Contains(controlSession)).ForEach(addControlSession); | ||
| } | ||
|
|
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| private void removeClosedSessions() | ||
| { | ||
| var sessions = sessionManager.GetSessions(); | ||
| var closedSessions = currentSessions.Where(session => !sessions.Contains(session)).ToList(); | ||
| if (closedSessions.Any()) currentSessions.Remove(closedSessions.First()); | ||
| } | ||
|
|
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| private void addControlSession(GlobalSystemMediaTransportControlsSession controlSession) | ||
| { | ||
| controlSession.PlaybackInfoChanged += (_, _) => OnAnyPlaybackInfoChanged?.Invoke(controlSession, controlSession.GetPlaybackInfo()); | ||
| controlSession.MediaPropertiesChanged += async (_, _) => OnAnyMediaPropertiesChanged?.Invoke(controlSession, await controlSession.TryGetMediaPropertiesAsync()); | ||
| controlSession.TimelinePropertiesChanged += (_, _) => OnAnyTimelinePropertiesChanged?.Invoke(controlSession, controlSession.GetTimelineProperties()); | ||
| currentSessions.Add(controlSession); | ||
| } | ||
| } |
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