115 lines
3.2 KiB
C#
115 lines
3.2 KiB
C#
using System;
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using System.Runtime.InteropServices;
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using Avalonia;
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using Avalonia.Controls;
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using Avalonia.Data;
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using Avalonia.Platform;
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using LibVLCSharp.Shared;
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namespace LibVLCSharp.Avalonia
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{
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/// <summary>
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/// Avalonia VideoView for Windows, Linux and Mac.
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/// </summary>
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public class VideoView : NativeControlHost
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{
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private IPlatformHandle? _platformHandle = null;
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private MediaPlayer? _mediaPlayer = null;
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/// <summary>
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/// MediaPlayer Data Bound property
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/// </summary>
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/// <summary>
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/// Defines the <see cref="MediaPlayer"/> property.
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/// </summary>
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public static readonly DirectProperty<VideoView, MediaPlayer?> MediaPlayerProperty =
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AvaloniaProperty.RegisterDirect<VideoView, MediaPlayer?>(
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nameof(MediaPlayer),
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o => o.MediaPlayer,
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(o, v) => o.MediaPlayer = v,
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defaultBindingMode: BindingMode.TwoWay);
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/// <summary>
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/// Gets or sets the MediaPlayer that will be displayed.
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/// </summary>
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public MediaPlayer? MediaPlayer
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{
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get { return _mediaPlayer; }
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set
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{
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if (ReferenceEquals(_mediaPlayer, value))
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{
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return;
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}
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Detach();
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_mediaPlayer = value;
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Attach();
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}
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}
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private void Attach()
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{
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if(_mediaPlayer == null || _platformHandle == null || !IsInitialized)
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return;
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if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
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{
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_mediaPlayer.Hwnd = _platformHandle.Handle;
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}
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else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
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{
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_mediaPlayer.XWindow = (uint)_platformHandle.Handle;
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}
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else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
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{
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_mediaPlayer.NsObject = _platformHandle.Handle;
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}
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}
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private void Detach()
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{
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if (_mediaPlayer == null)
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return;
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if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
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{
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_mediaPlayer.Hwnd = IntPtr.Zero;
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}
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else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
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{
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_mediaPlayer.XWindow = 0;
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}
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else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
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{
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_mediaPlayer.NsObject = IntPtr.Zero;
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}
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}
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/// <inheritdoc />
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protected override IPlatformHandle CreateNativeControlCore(IPlatformHandle parent)
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{
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_platformHandle = base.CreateNativeControlCore(parent);
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if (_mediaPlayer == null)
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return _platformHandle;
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Attach();
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return _platformHandle;
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}
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/// <inheritdoc />
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protected override void DestroyNativeControlCore(IPlatformHandle control)
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{
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Detach();
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base.DestroyNativeControlCore(control);
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if (_platformHandle != null)
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{
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_platformHandle = null;
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}
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}
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}
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}
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