public void EndUpdate(IAsyncResult ar)
{
Verify.Argument.IsNotNull(ar, "ar");
Verify.State.IsTrue(_avatarLoading != null, "No async operation is running.");
GravatarService.EndGetGravatar(ar);
}
public IAsyncResult BeginUpdate()
{
lock (_sync)
{
if (_avatarLoading != null)
{
return(_avatarLoading);
}
_avatarLoading = GravatarService.BeginGetGravatar(
OnAvatarLoaded, _email, DefaultGravatarType.wavatar, GravatarRating.g, 60);
return(_avatarLoading);
}
}
private void OnAvatarLoaded(IAsyncResult ar)
{
lock (_sync)
{
_avatarLoading = null;
try
{
_image = GravatarService.EndGetGravatar(ar);
}
catch
{
_image = new Bitmap(1, 1);
}
}
InvokeUpdated();
}
public void Update()
{
lock (_sync)
{
Verify.State.IsTrue(_avatarLoading != null, "Async update is already running.");
try
{
_image = GravatarService.GetGravatar(
_email, DefaultGravatarType.wavatar, GravatarRating.g, 60);
}
catch
{
_image = new Bitmap(1, 1);
}
}
InvokeUpdated();
}