/// <summary>
/// Internals the on photo chosen.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="photoResult">The photo result.</param>
private void InternalOnPhotoChosen(object sender, PhotoResult photoResult)
{
var tcs = Interlocked.Exchange(ref _completionSource, null);
if (photoResult.TaskResult == TaskResult.Cancel)
{
tcs.SetCanceled();
return;
}
var path = string.Empty;
var pos = photoResult.ChosenPhoto.Position;
var options = tcs.Task.AsyncState as CameraMediaStorageOptions;
var streamImage = photoResult.ChosenPhoto;
var saveImage = true;
Action <bool> dispose = null;
if (options != null)
{
ResizeImageStream(
options.MaxPixelDimension,
options.PercentQuality,
streamImage,
stream => SafeAsyncCall(stream, o => streamImage = o));
saveImage = options.SaveMediaOnCapture;
}
if (saveImage)
{
using (var store = IsolatedStorageFile.GetUserStoreForApplication())
{
path = options.GetUniqueMediaFileWithPath((options == null) ? "temp" : options.Directory, p => store.FileExists(p));
var dir = Path.GetDirectoryName(path);
if (!String.IsNullOrWhiteSpace(dir))
{
store.CreateDirectory(dir);
}
using (var fs = store.CreateFile(path))
{
var buffer = new byte[20480];
int len;
//while ((len = photoResult.ChosenPhoto.Read(buffer, 0, buffer.Length)) > 0)
while ((len = streamImage.Read(buffer, 0, buffer.Length)) > 0)
{
fs.Write(buffer, 0, len);
}
fs.Flush(true);
}
}
if (options == null)
{
dispose = d =>
{
using (var store = IsolatedStorageFile.GetUserStoreForApplication())
{
store.DeleteFile(path);
}
};
}
}
switch (photoResult.TaskResult)
{
case TaskResult.OK:
photoResult.ChosenPhoto.Position = pos;
var mf = new MediaFile(path, () => streamImage, dispose);
if (OnMediaSelected != null)
{
OnMediaSelected(this, new MediaPickerArgs(mf));
}
tcs.SetResult(mf);
break;
case TaskResult.None:
photoResult.ChosenPhoto.Dispose();
if (photoResult.Error != null)
{
if (OnError != null)
{
OnError(this, new MediaPickerErrorArgs(photoResult.Error));
}
tcs.SetException(photoResult.Error);
}
break;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="MediaPickerArgs" /> class.
/// </summary>
/// <param name="mf">The mf.</param>
public MediaPickerArgs(MediaFile mf)
{
MediaFile = mf;
}