private void SetCurrentSongUserRatingFromServer(int serverValue)
{
int rating = serverValue / 20;
_CurrentSongUserRating = rating;
_ratingUpdatedForSongID = CurrentItemID;
PropertyChanged.RaiseOnUIThread(this, "CurrentSongUserRating");
}
protected void SendPropertyChanged([CallerMemberName] string propertyName = null)
{
if (propertyName == null)
{
throw new ArgumentNullException("propertyName");
}
PropertyChanged.RaiseOnUIThread(this, propertyName);
}
protected void SendVolumePropertyChanged()
{
PropertyChanged.RaiseOnUIThread("CurrentVolume", "BindableVolume");
lock (Speakers)
{
foreach (AirPlaySpeaker speaker in Speakers)
{
speaker.UpdateBindableVolume();
}
}
}
private void SendTrackTimePropertyChanged()
{
PropertyChanged.RaiseOnUIThread(this,
"TrackTimeTotal",
"TrackTimeRemaining",
"CurrentTrackTimeRemaining",
"CurrentTrackTimePosition",
"CurrentTrackTimePercentage",
"CurrentTrackTimePositionString",
"CurrentTrackTimeRemainingString",
"CurrentTrackTimePositionOrPausedString");
}
internal void UpdateBindableVolume()
{
lock (Server.Speakers)
{
// If there are no other AirPlay speakers enabled, just return the server volume
if (!Server.Speakers.Any(s => s != this && s.Active))
{
_BindableVolume = Server.CurrentVolume;
}
else if (Server.CurrentVolume == 100)
{
_BindableVolume = Volume;
}
else
{
double volumePercentage = (double)Volume / 100;
_BindableVolume = (int)((double)Server.CurrentVolume * volumePercentage);
}
}
PropertyChanged.RaiseOnUIThread(this, "BindableVolume");
}
private void ClearCurrentSongUserRating()
{
_CurrentSongUserRating = 0;
_ratingUpdatedForSongID = 0;
PropertyChanged.RaiseOnUIThread(this, "CurrentSongUserRating");
}
protected async Task <bool> GetPlayStatusUpdateAsync(CancellationToken cancellationToken)
{
// Do not pass the cancellation token to the HTTP request since cancelling a request will cause iTunes to close the current session.
DACPRequest request = new DACPRequest("/ctrl-int/1/playstatusupdate");
request.QueryParameters["revision-number"] = _playStatusRevisionNumber.ToString();
try
{
var response = await SubmitRequestAsync(request).ConfigureAwait(false);
// Do we still need to process this response?
if (cancellationToken.IsCancellationRequested)
{
return(false);
}
// Process response
ThreadUtility.RunOnUIThread(() =>
{
timerTrackTimeUpdate.Stop();
});
var nodes = DACPNodeDictionary.Parse(response.Nodes);
_playStatusRevisionNumber = nodes.GetInt("cmsr");
int oldSongID = CurrentItemID;
if (nodes.ContainsKey("canp"))
{
// Current song and container IDs
byte[] value = nodes["canp"];
byte[] dbID = { value[0], value[1], value[2], value[3] };
byte[] containerID = { value[4], value[5], value[6], value[7] };
byte[] containerItemID = { value[8], value[9], value[10], value[11] };
byte[] itemID = { value[12], value[13], value[14], value[15] };
CurrentDatabaseID = dbID.GetInt32Value();
CurrentContainerID = containerID.GetInt32Value();
CurrentContainerItemID = containerItemID.GetInt32Value();
CurrentItemID = itemID.GetInt32Value();
}
else
{
CurrentDatabaseID = 0;
CurrentContainerID = 0;
CurrentContainerItemID = 0;
CurrentItemID = 0;
}
CurrentSongName = nodes.GetString("cann");
CurrentArtist = nodes.GetString("cana");
CurrentAlbum = nodes.GetString("canl");
CurrentAlbumPersistentID = (UInt64)nodes.GetLong("asai");
PlayState = (PlayStates)nodes.GetByte("caps");
// Shuffle
int caas = nodes.GetInt("caas");
IsShuffleAvailable = (caas & (1 << 1)) != 0;
ShuffleState = nodes.GetBool("cash");
// Repeat
int caar = nodes.GetInt("caar");
IsRepeatOneAvailable = (caar & (1 << 1)) != 0;
IsRepeatAllAvailable = (caar & (1 << 2)) != 0;
RepeatState = (RepeatStates)nodes.GetByte("carp");
CurrentMediaKind = nodes.GetInt("cmmk");
ShowUserRating = nodes.GetBool("casu");
// Track length (ms)
TrackTimeTotal = nodes.GetInt("cast");
// Remaining track length (ms)
TrackTimeRemaining = nodes.GetNullableInt("cant") ?? TrackTimeTotal;
// dacp.visualizer
VisualizerActive = nodes.GetBool("cavs");
// dacp.visualizerenabled
VisualizerAvailable = nodes.GetBool("cave");
// dacp.fullscreen
FullScreenModeActive = nodes.GetBool("cafs");
// dacp.fullscreenenabled
FullScreenModeAvailable = nodes.GetBool("cafe");
// iTunes Radio
if (iTunesRadioDatabase != null && iTunesRadioDatabase.ID == CurrentDatabaseID)
{
IsCurrentlyPlayingiTunesRadio = true;
CurrentiTunesRadioStationName = nodes.GetString("ceNR");
// caks = 1 when the next button is disabled, and 2 when it's enabled
IsiTunesRadioNextButtonEnabled = (nodes.GetByte("caks") == 2);
// "aelb" indicates whether the star button (iTunes Radio menu) should be enabled, but this only seems to be set to true
// when connected via Home Sharing. This parameter is missing when an ad is playing, so use this to determine whether
// the menu should be enabled.
IsiTunesRadioMenuEnabled = nodes.ContainsKey("aelb");
IsiTunesRadioSongFavorited = (nodes.GetByte("aels") == 2);
}
else
{
IsCurrentlyPlayingiTunesRadio = false;
}
if (IsCurrentlyPlayingiTunesRadio)
{
var caks = nodes.GetByte("caks");
IsiTunesRadioNextButtonEnabled = !(caks == 1);
}
if (!nodes.ContainsKey("casc") || nodes.GetBool("casc") == true)
{
IsPlayPositionBarEnabled = true;
}
else
{
IsPlayPositionBarEnabled = false;
}
// Genius Shuffle
IsCurrentlyPlayingGeniusShuffle = nodes.GetBool("ceGs");
// There are two other nodes related to Genius Shuffle, "ceGS" and "aeGs" (currently unknown)
// If the song ID changed, refresh the album art
if (oldSongID != CurrentItemID)
{
PropertyChanged.RaiseOnUIThread(this, "CurrentAlbumArtURL");
}
ThreadUtility.RunOnUIThread(() =>
{
if (PlayState == PlayStates.Playing)
{
timerTrackTimeUpdate.Start();
}
else if (PlayState == PlayStates.FastForward || PlayState == PlayStates.Rewind)
{
BeginRepeatedTrackTimeRequest();
}
});
var volumeTask = UpdateCurrentVolumeLevelAsync();
var userRatingTask = UpdateCurrentSongUserRatingAsync();
var playQueueTask = UpdatePlayQueueContentsAsync();
Task[] tasks = new[] { volumeTask, userRatingTask, playQueueTask };
#if WP7
await TaskEx.WhenAll(tasks).ConfigureAwait(false);
#else
await Task.WhenAll(tasks).ConfigureAwait(false);
#endif
SubmitGetSpeakersRequest();
}
catch { return(false); }
return(true);
}
internal void AirPlayMasterVolumeManipulation(int newVolume)
{
_currentVolume = newVolume;
PropertyChanged.RaiseOnUIThread(this, "CurrentVolume", "BindableVolume");
}