private void HandlePostBtnClicked(object sender, RoutedEventArgs e)
{
try
{
var availableLen = GetAvailableStatusText();
if (availableLen < 0)
{
ShowMessage("Exceeds the status length limit. Try the post-as-pic option.", false);
IsPostAsPic = true;
return;
}
ClearMessage();
if (!Validate())
return;
if (null != Posting)
{
var args = new PostingEventArgs();
args.PostingText = Text;
Posting(this, args);
if (!args.IsContinue)
return;
}
ShowMessage("Posting...");
if (!this.IsPicAttached)
{
var updateStatusInfo = new UpdateStatusInfo() { Status = Text, Latitude = 31.22f, Longitude = 121.48f };
AMicroblog.PostStatusAsync(
delegate(AsyncCallResult<StatusInfo> result)
{
if (result.Success)
{
var statusInfo = result.Data;
AddStatusToView(statusInfo);
ShowMessage("Message posted successfully at {0}", statusInfo.CreatedAt);
}
else
ShowMessage("Failed to post message due to: {0}", false, result.Exception.Message);
if (null != Posted)
Posted(this, null);
}, updateStatusInfo);
}
else
{
try
{
var updStatusData = new UpdateStatusWithPicInfo();
updStatusData.Status = Text;
updStatusData.Pic = this.AttachedPicLocation;
var postCallback = new AsyncCallback<StatusInfo>(delegate(AsyncCallResult<StatusInfo> result)
{
if (result.Success)
{
var statusInfo = result.Data;
AddStatusToView(statusInfo);
this.AttachedPicLocation = string.Empty;
ShowMessage("Message posted successfully at {0}", statusInfo.CreatedAt);
}
else
{
this.IsPicAttached = true;
ShowMessage("Failed to post message due to: {0}", false, result.Exception.Message);
}
});
AMicroblog.PostStatusWithPicAsync(postCallback, updStatusData);
}
catch (Exception ex)
{
ShowMessage(ex.Message, false);
}
}
this.IsPicAttached = false;
txbStatus.Clear();
}
catch (Exception ex)
{
ShowMessage(ex.Message, false);
}
}
/// <summary>
/// The async implementation of <see cref="PostStatusWithPic"/>
/// </summary>
public static void PostStatusWithPicAsync(AsyncCallback<StatusInfo> callback, UpdateStatusWithPicInfo updateStatusWithPicInfo)
{
// Validates arguments
ValidateArgument(updateStatusWithPicInfo, "updateStatusWithPicInfo");
ValidateArgument(updateStatusWithPicInfo.Status, "updateStatusWithPicInfo.Status");
ValidateArgument(updateStatusWithPicInfo.Pic, "updateStatusWithPicInfo.Pic");
FileInfo picInfo = new FileInfo(updateStatusWithPicInfo.Pic);
if (picInfo.Length > 5 * 1021 * 1024) // 5MB limit
{
throw new AMicroblogException(LocalErrorCode.ArgumentInvalid, "Pic file too large to post.");
}
var uri = APIUri.UpdateStatusWithPic;
var requester = new OAuthMultiPartHttpPost(uri);
requester.PartFields.Add(new MultiPartField() { Name = "status", Value = RFC3986Encoder.UrlEncode(updateStatusWithPicInfo.Status) });
requester.PartFields.Add(new MultiPartField() { Name = "pic", FilePath = updateStatusWithPicInfo.Pic });
if (updateStatusWithPicInfo.Latitude.HasValue && updateStatusWithPicInfo.Longitude.HasValue)
{
requester.PartFields.Add(new MultiPartField() { Name = "lat", FilePath = updateStatusWithPicInfo.Latitude.Value.ToString(InvariantCulture) });
requester.PartFields.Add(new MultiPartField() { Name = "long", FilePath = updateStatusWithPicInfo.Longitude.Value.ToString(InvariantCulture) });
}
requester.RequestAsync(delegate(AsyncCallResult<string> result)
{
ProcessAsyncCallbackResponse(result, callback);
});
}