public async Task Move(int updown)
{
_timer.Stop();
// Calculate index position
var sequence = _book.Sequence.Where(
w => w.Filename == _playerInfo.CurrentFilename &&
w.TCIn <= _playerInfo.Position.CurrentTC &&
w.TCOut > _playerInfo.Position.CurrentTC).FirstOrDefault();
if (sequence != null)
{
_playerInfo.Position.CurrentIndex = _book.Sequence.IndexOf(sequence);
}
var index = _playerInfo.Position.CurrentIndex;
do
{
index += updown;
} while (index > 0 && index < _book.Sequence.Count && _book.Sequence[index].Level > _playerInfo.Position.NavigationLevel);
// adjust bounds
if (index < 0)
{
index = 0;
return;
}
else if (index > _book.Sequence.Count - 1)
{
index = _book.Sequence.Count - 1;
return;
}
else
{
_playerInfo.Position.CurrentIndex = index;
_playerInfo.Position.CurrentSOM = _book.Sequence[index].SOM;
_playerInfo.Position.CurrentTC = _book.Sequence[index].TCIn;
_playerInfo.Position.CurrentTitle = _book.Sequence[index].Title;
ChapterUpdate?.Invoke(_book.Title, _playerInfo.Position.CurrentTitle);
TimeCodeUpdate?.Invoke(
new TimeSpan()
.Add(TimeSpan.FromSeconds(_playerInfo.Position.CurrentSOM))
.Add(TimeSpan.FromSeconds(_playerInfo.Position.CurrentTC))
);
}
await CrossMediaManager.Current.Pause();
if (_book.Sequence[index].Filename != _playerInfo.CurrentFilename)
{
_playerInfo.CurrentFilename = $"{_book.Sequence[index].Filename}";
_fileChanged = true;
}
_timer.Start();
SaveStatus();
}
public async void LoadBook(DaisyBook book)
{
// Save status of a previous book loaded
if (_playerInfo != null)
{
SaveStatus();
}
_book = book;
_playerInfo = new PlayerInfo
{
Position = new SeekInfo
{
CurrentIndex = 0,
NavigationLevel = DaisyBook.NAV_LEVEL_SECTION
},
};
_playerInfo.CurrentFilename = $"{_book.Sequence[_playerInfo.Position.CurrentIndex].Filename}";
LoadStatus();
ChapterUpdate?.Invoke(_book.Title, _book.Sequence[0].Title);
await CrossMediaManager.Current.Play(
new MediaItem
{
Title = _playerInfo.Position.CurrentTitle,
MediaLocation = MediaLocation.FileSystem,
MediaUri = $"{Session.Instance.GetDataDir()}/{_book.Id}/{_playerInfo.CurrentFilename}"
}
);
_seekToCurrentTC = true;
}
private async Task <bool> LoadNextFile()
{
var currentSeq = _book.Sequence[_playerInfo.Position.CurrentIndex];
string newFile = null;
int newIndex = 0;
for (var i = _playerInfo.Position.CurrentIndex; i < _book.Sequence.Count; i++)
{
if (_book.Sequence[i].Filename != currentSeq.Filename)
{
newFile = _book.Sequence[i].Filename;
newIndex = i;
break;
}
}
if (newFile != null)
{
_playerInfo.CurrentFilename = $"{newFile}";
_playerInfo.Position.CurrentIndex = newIndex;
_playerInfo.Position.CurrentSOM = _book.Sequence[newIndex].SOM;
_playerInfo.Position.CurrentTC = 0;
_playerInfo.Position.CurrentTitle = _book.Sequence[newIndex].Title;
ChapterUpdate?.Invoke(_book.Title, _playerInfo.Position.CurrentTitle);
await CrossMediaManager.Current.Play(
new MediaItem
{
Title = _playerInfo.Position.CurrentTitle,
MediaLocation = MediaLocation.FileSystem,
MediaType = MediaType.Audio,
MediaUri = $"{Session.Instance.GetDataDir()}/{_book.Id}/{_playerInfo.CurrentFilename}"
}
);
SaveStatus();
return(true);
}
else
{
return(false);
}
}