public Stream GetMultimediaFromDescriptor(ref StorageDescriptor storageDescriptor)
{
switch (storageDescriptor.Type)
{
case StorageType.IsolatedStorage:
return GetMultimediaFromIsolatedStorage(storageDescriptor.FileName);
case StorageType.CameraRoll:
return GetMultimediaFromCameraRoll(storageDescriptor.FileName);
case StorageType.Unknown:
return Stream.Null;
default:
return Stream.Null;
}
}
private string FilePathForDescriptor(StorageDescriptor desc)
{
if (desc.Type != StorageType.IsolatedStorage)
{
throw new ArgumentException("desc");
}
Contract.Requires(CurrentMultimediaFolder != null, "Invalid Profile Folder");
return Path.Combine(CurrentMultimediaFolder, desc.FileName);
}
public string StoreMultimedia(string FileName, Stream data)
{
Contract.Requires(!string.IsNullOrWhiteSpace(FileName), "Invalid Filename");
var fileDescriptor = new StorageDescriptor() { Type = StorageType.IsolatedStorage, FileName = FileName };
var filePath = FilePathForDescriptor(fileDescriptor);
UsingIsolatedStorage(store =>
{
if (store.FileExists(filePath))
{
throw new InvalidOperationException("Couldn't save Media. File already Exists!");
}
else
{
using (var file = store.CreateFile(filePath))
{
data.Seek(0, SeekOrigin.Begin);
data.CopyTo(file);
file.Flush();
}
}
});
return fileDescriptor.ToString();
}
public string StoreImage(string fileNameHint, PhotoResult image)
{
StorageDescriptor fileDescriptor;
var cameraRoll = Library.CameraRoll();
//On WP8 the image is already saved, check for that...
//On Devices without Camera Roll fall back to saving anyway
if (IsWP8 && cameraRoll != null)
{
// ... and use the Image in the Camera Roll
var crImage = cameraRoll.Pictures.OrderByDescending(p => p.Date).First();
fileDescriptor = new StorageDescriptor() { Type = StorageType.CameraRoll, FileName = crImage.Name };
}
else
{
var pic = Library.SavePictureToCameraRoll(fileNameHint, image.ChosenPhoto);
fileDescriptor = new StorageDescriptor() { Type = StorageType.CameraRoll, FileName = pic.Name };
}
return fileDescriptor.ToString();
}
