public override void Do(ActionArgs e)
{
Begin(e);
if (precheckToDo(e))
{
try {
ActionFacebookGetAvatarArgs arg = e as ActionFacebookGetAvatarArgs;
WebClient client = new WebClient();
client.OpenReadCompleted += WebClientOpenReadCompleted;
if (arg.IsGuest)
{
client.OpenReadAsync(new Uri(FacebookClient.Instance.getUserAvatarUrl(arg.FacebookId), UriKind.Absolute));
}
else
{
client.OpenReadAsync(new Uri(FacebookClient.Instance.getUserAvatarUrl(), UriKind.Absolute));
}
_waiting.Add(client, arg);
} catch (Exception ex) {
Cancel(e);
}
}
else
{
Cancel(e);
}
}
static public void loadAvatar(Actions.DelegateBegin onBegin, Actions.DelegateDone onDone, Actions.DelegateCancel onCancel)
{
Actions.ActionFacebookGetAvatarArgs arg = new Actions.ActionFacebookGetAvatarArgs();
Actions.ActionFacebookGetAvatar action_fbavar = new Actions.ActionFacebookGetAvatar();
try {
if (onBegin != null)
{
action_fbavar.OnBegin += onBegin;
}
if (onDone != null)
{
action_fbavar.OnDone += onDone;
}
if (onCancel != null)
{
action_fbavar.OnCancel += onCancel;
}
action_fbavar.Do(arg);
} catch (Exception ex) {
if (onCancel != null)
{
onCancel(null, arg);
}
}
}
private void WebClientOpenReadCompleted(object sender, OpenReadCompletedEventArgs e)
{
Deployment.Current.Dispatcher.BeginInvoke(() => {
try {
ActionFacebookGetAvatarArgs arg = _waiting[(WebClient)sender];
var streamResourceInfo = new StreamResourceInfo(e.Result, null);
var bitmapImage = new BitmapImage();
bitmapImage.SetSource(streamResourceInfo.Stream);
arg.Avatar = bitmapImage;
Done(arg);
} catch (Exception ex) {
}
});
}
public override bool precheckToDo(ActionArgs e)
{
ActionFacebookGetAvatarArgs arg = e as ActionFacebookGetAvatarArgs;
if (arg != null)
{
if (arg.IsGuest)
{
return(arg.FacebookId > 0);
}
else
{
return(FacebookClient.Instance.IsUserLogedin());
}
}
return(false);
}