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MediaChangedEvent now hooked up to player component.

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This commit is contained in:
watsonb8
2019-05-24 17:17:14 -04:00
parent 80e9a4543d
commit 64c2285817
7 changed files with 83 additions and 4 deletions
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2
Aurora/Backend/Models/Media/BaseMedia.cs
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@@ -31,6 +31,8 @@ namespace Aurora.Backend.Models.Media
public abstract MediaTypeEnum MediaType { get; }
public abstract BaseMetadata Metadata { get; protected set; }
/// <summary>
/// Gets or sets the data stream that holds the song.

2
Aurora/Backend/Models/Media/LocalAudio.cs
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@@ -14,7 +14,7 @@ namespace Aurora.Backend.Models.Media
#region Properties
public FileInfo File { get; private set; }
public AudioMetadata Metadata { get; private set; }
public override BaseMetadata Metadata { get; protected set; }
public override MediaTypeEnum MediaType
{

17
Aurora/Backend/Services/PlayerService/MediaChangedEvent.cs Normal file
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@@ -0,0 +1,17 @@
using System;
using Aurora.Backend.Models.Media;
namespace Aurora.Backend.Services.PlayerService
{
public delegate void MediaChangedEventHandler(object source, MediaChangedEventArgs e);
public class MediaChangedEventArgs : EventArgs
{
public BaseMetadata NewMetadata { get; private set; }
public MediaChangedEventArgs(BaseMetadata metadata)
{
NewMetadata = metadata;
}
}
}

1
Aurora/Backend/Services/PlayerService/PlaybackStateChangedEvent.cs
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@@ -1,4 +1,5 @@
using System;
using Aurora.Backend.Models.Media;
namespace Aurora.Backend.Services.PlayerService
{

4
Aurora/Backend/Services/PlayerService/PlayerService.cs
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@@ -22,6 +22,8 @@ namespace Aurora.Backend.Services.PlayerService
/// </summary>
public event PlaybackStateChangedEventHandler PlaybackStateChanged;
public event MediaChangedEventHandler MediaChanged;
/// <summary>
/// The state of playback
/// </summary>
@@ -47,6 +49,8 @@ namespace Aurora.Backend.Services.PlayerService
_mediaPlayer = new MediaPlayer(md);
_mediaPlayer.Stopped += OnStopped;
md.Dispose();
MediaChanged.Invoke(this, new MediaChangedEventArgs(_currentMedia.Metadata));
}
/// <summary>

2
Aurora/Frontend/Components/MediaPlayer/Player.xaml
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@@ -14,7 +14,7 @@
<StackLayout
Grid.Column="0">
<Label
Text="{Binding SongName}"/>
Text="{Binding SongTitle}"/>
<Label
Text="{Binding ArtistName}"/>
</StackLayout>

59
Aurora/Frontend/Components/MediaPlayer/PlayerViewModel.cs
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@@ -2,16 +2,20 @@
using Xamarin.Forms;
using Aurora.Frontend.Views;
using Aurora.Backend.Services.PlayerService;
using Aurora.Backend.Models.Media;
namespace Aurora.Frontend.Components.MediaPlayer
{
public class PlayerViewModel : BaseViewModel
{
PlayerService _playerService;
BaseMetadata _metadata;
public PlayerViewModel()
{
_playerService = PlayerService.Instance;
_playerService.PlaybackStateChanged += OnPlaybackStateChanged;
_playerService.MediaChanged += OnMediaChanged;
PlayCommand = new Command(OnPlayExecute, CanPlayExecute);
PreviousCommand = new Command(OnPreviousExecute, CanPreviousExecute);
@@ -20,6 +24,7 @@ namespace Aurora.Frontend.Components.MediaPlayer
~PlayerViewModel()
{
_playerService.PlaybackStateChanged -= OnPlaybackStateChanged;
}
@@ -28,10 +33,43 @@ namespace Aurora.Frontend.Components.MediaPlayer
public Command NextCommand { get; private set; }
public Command PreviousCommand { get; private set; }
public string PlayButtonText
{
get { return PlayerService.Instance.PlaybackState == PlaybackState.Buffering ? "Play" : "Pause"; }
get { return _playerService.PlaybackState == PlaybackState.Buffering ? "Play" : "Pause"; }
}
/// <summary>
/// TODO keep player view generic between audio and video.
/// </summary>
/// <value></value>
public string ArtistName
{
get
{
if (_metadata == null)
{
return "";
}
AudioMetadata metadata = _metadata as AudioMetadata;
return metadata.Artist;
}
}
/// <summary>
/// TODO keep player view generic between audio and video.
/// </summary>
/// <value></value>
public string SongTitle
{
get
{
if (_metadata == null)
{
return "";
}
AudioMetadata metadata = _metadata as AudioMetadata;
return metadata.Title;
}
}
#endregion Public Properties
@@ -96,6 +134,11 @@ namespace Aurora.Frontend.Components.MediaPlayer
#endregion public Methods
#region EventHandlers
/// <summary>
/// PlayerService playback state changed event handler.
/// </summary>
/// <param name="sender">The sending object.</param>
/// <param name="args">Event arguments.</param>
public void OnPlaybackStateChanged(object sender, PlaybackStateChangedEventArgs args)
{
OnPropertyChanged("PlayButtonText");
@@ -103,6 +146,18 @@ namespace Aurora.Frontend.Components.MediaPlayer
NextCommand.ChangeCanExecute();
PreviousCommand.ChangeCanExecute();
}
/// <summary>
/// PlayerService media changed event handler.
/// </summary>
/// <param name="sender">The sending object.</param>
/// <param name="args">Event arguments.</param>
public void OnMediaChanged(object sender, MediaChangedEventArgs args)
{
_metadata = args.NewMetadata;
OnPropertyChanged("ArtistName");
OnPropertyChanged("SongTitle");
}
#endregion EventHandlers
}
}