internal CurrentPlaylistPageViewPresenter(
IApplicationResources resources,
IPlayQueueService playQueueService,
ISongsService metadataEditService,
ISongsCachingService cachingService,
IApplicationStateService stateService,
INavigationService navigationService,
IRadioStationsService radioStationsService,
ISettingsService settingsService,
SongsBindingModel songsBindingModel)
{
this.resources = resources;
this.playQueueService = playQueueService;
this.metadataEditService = metadataEditService;
this.cachingService = cachingService;
this.stateService = stateService;
this.navigationService = navigationService;
this.radioStationsService = radioStationsService;
this.settingsService = settingsService;
this.BindingModel = songsBindingModel;
this.playQueueService.QueueChanged += async(sender, args) => await this.Dispatcher.RunAsync(this.UpdateSongs);
//this.SaveAsPlaylistCommand = new DelegateCommand(this.SaveAsPlaylist, () => this.BindingModel.Songs.Count > 0);
this.RemoveSelectedSongCommand = new DelegateCommand(this.RemoveSelectedSong, () => this.BindingModel.SelectedItems.Count > 0);
this.AddToPlaylistCommand = new DelegateCommand(this.AddToPlaylist, () => this.BindingModel.SelectedItems.Count > 0);
this.RateSongCommand = new DelegateCommand(this.RateSong);
this.DownloadCommand = new DelegateCommand(this.Download, () => this.BindingModel.SelectedItems.Count(x => !x.Metadata.UnknownSong) > 0);
this.UnPinCommand = new DelegateCommand(this.UnPin, () => this.BindingModel.SelectedItems.Count(x => !x.Metadata.UnknownSong) > 0);
this.StartRadioCommand = new DelegateCommand(this.StartRadio, () => this.BindingModel != null && this.BindingModel.SelectedItems.Count == 1);
this.playQueueService.StateChanged += async(sender, args) => await this.Dispatcher.RunAsync(async() =>
{
if (this.BindingModel.SelectedItems.Count == 0)
{
if (this.BindingModel.Songs != null && args.CurrentSong != null)
{
var currentSong = this.BindingModel.Songs.FirstOrDefault(x => string.Equals(x.Metadata.SongId, args.CurrentSong.SongId, StringComparison.Ordinal));
if (currentSong != null)
{
await this.View.ScrollIntoCurrentSongAsync(currentSong);
}
}
}
});
}
public async Task ScrollIntoCurrentSongAsync(SongBindingModel songBindingModel)
{
await Task.Run(
async() =>
{
if (this.presenter != null && songBindingModel != null)
{
SongsBindingModel songsBindingModel = this.presenter.BindingModel;
if (songsBindingModel != null &&
songsBindingModel.Songs != null)
{
await this.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, this.UpdateLayout);
await this.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () => this.ListView.ScrollIntoView(songBindingModel));
}
}
});
}
