public void Uploaded()
{
if (this.type == "Teacher")
{
//UserEnter 라는 이벤트를 전달한다
ChatEventArgs e = new ChatEventArgs();
e.msgType = MessageType.Uploaded;
BroadcastMessage(e);
}
}
public void SendRequest(string to, string file)
{
ChatEventArgs e = new ChatEventArgs();
e.msgType = MessageType.SendResponse;
e.serial = Xml.Xml_FindName(this.serial);
e.file = file;
try
{
ChatEventHandler chatterTo;
lock (syncObj)
{
chatterTo = chatters[to];
}
chatterTo.BeginInvoke(this, e, new AsyncCallback(EndAsync), null);
}
catch (KeyNotFoundException)
{
foreach (string serial in chatters.Keys)
{
if (serial == this.serial)
continue;
++totaldown;
}
foreach (ChatEventHandler ch in ChatEvent.GetInvocationList())
{
if (chatters[this.serial] == ch)
continue;
ch.BeginInvoke(this, e, new AsyncCallback(EndAsync), null);
}
}
}
public void Erase(string type, string page, double left, double top, Point[] pts)
{
if (this.type == "Teacher")
{
ChatEventArgs e = new ChatEventArgs();
e.msgType = MessageType.EraseReceive;
e.type = type;
e.page = page;
e.rectleft = left;
e.recttop = top;
e.pts = pts;
e.bookname = this.bookname;
BroadcastMessage(e);
}
}
public void SendScroll(double offset)
{
if (this.type == "Teacher")
{
ChatEventArgs e = new ChatEventArgs();
e.msgType = MessageType.ReceiveScroll;
e.offset = offset;
e.bookname = this.bookname;
BroadcastMessage(e);
}
}
public void MovePage(string page)
{
if (this.type == "Teacher")
{
ChatEventArgs e = new ChatEventArgs();
e.msgType = MessageType.ReceivePage;
e.serial = this.serial;
e.page = page;
e.bookname = this.bookname;
BroadcastMessage(e);
}
}
public void MemoText(string id, string text)
{
if (this.type == "Teacher")
{
ChatEventArgs e = new ChatEventArgs();
e.msgType = MessageType.MemoTextReceive;
e.serial = id;
e.message = text;
e.bookname = this.bookname;
BroadcastMessage(e);
}
}
public void Draw(string type, Color color, Point pt, int fontsize)
{
if (this.type == "Teacher")
{
ChatEventArgs e = new ChatEventArgs();
e.msgType = MessageType.DrawReceive;
e.pt = pt;
e.color = color;
e.type = type;
e.fontsize = fontsize;
e.bookname = this.bookname;
BroadcastMessage(e);
}
}
public void DrawEnd(string type, string id)
{
if (this.type == "Teacher")
{
ChatEventArgs e = new ChatEventArgs();
e.msgType = MessageType.DrawEnd;
e.type = type;
e.serial = id;
e.bookname = this.bookname;
BroadcastMessage(e);
}
}
public void Leave()
{
if (this.serial == null) return;
lock (syncObj)
{
chatters.Remove(this.serial);
}
ChatEvent -= myEventHandler;
//새로운 이벤트 발생
ChatEventArgs e = new ChatEventArgs();
e.msgType = MessageType.UserLeave;
e.serial = this.serial;
BroadcastMessage(e);
}
public void Say(string msg)
{
ChatEventArgs e = new ChatEventArgs();
e.msgType = MessageType.Receive;
e.serial = this.serial;
e.message = msg;
BroadcastMessage(e);
}
private void MyEventHandler(object sender, ChatEventArgs e)
{
try
{
//클라이언트에게 보내기
switch (e.msgType)
{
case MessageType.Receive:
callback.Receive(e.serial, e.message);
break;
case MessageType.UserEnter:
//callback.UserEnter(Xml.Xml_FindName(e.serial));
callback.UserEnter(e.serial, e.name);
break;
case MessageType.DrawPrepare:
callback.PrepareReceive(e.type, e.color, e.pt, e.fontsize, e.bookname);
break;
case MessageType.DrawReceive:
callback.DrawReceive(e.type, e.color, e.pt, e.fontsize, e.bookname);
break;
case MessageType.DrawEnd:
callback.DrawEndReceive(e.type, e.serial, e.bookname);
break;
case MessageType.UserLeave:
callback.UserLeave(e.serial);
break;
case MessageType.MemoReceive:
callback.MemoReceive(e.serial, e.bookname);
break;
case MessageType.MemoTextReceive:
callback.MemoTextReceive(e.serial, e.message, e.bookname);
break;
case MessageType.EraseReceive:
callback.EraseReceive(e.type, e.page, e.rectleft, e.recttop, e.pts, e.bookname);
break;
case MessageType.SendResponse:
callback.SendResponse(e.serial, e.file);
break;
case MessageType.ReceivePage:
callback.ReceivePage(e.page, e.bookname);
break;
case MessageType.ReceiveScroll:
callback.ReceiveScroll(e.offset, e.bookname);
break;
case MessageType.Uploaded:
callback.Uploaded();
break;
}
}
catch//에러가 발생했을 경우
{
Leave();
}
}
private void BroadcastMessage(ChatEventArgs e)
{
//이벤트
ChatEventHandler temp = ChatEvent;
if (temp != null)
{
//현재 이벤트들을 전달한다.
foreach (ChatEventHandler handler in temp.GetInvocationList())
{
handler.BeginInvoke(this, e, new AsyncCallback(EndAsync), null);
}
}
}
public string[] Join(string serial)
{
//자기 자신의 이벤트 핸들러 등록
myEventHandler = new ChatEventHandler(MyEventHandler);
lock (syncObj)
{
if (!chatters.ContainsKey(serial))//이름이 기존 채터에 있는지 검색한다.
{
//이름과 이벤트를 추가한다.
this.serial = serial;
chatters.Add(serial, MyEventHandler);
//시리얼을 기반으로 타입 검색
this.type = Xml.Xml_FindType(serial);
//사용자에게 보내 줄 채널을 설정한다.
callback = OperationContext.Current.GetCallbackChannel<ISIUCallback>();
//UserEnter 라는 이벤트를 전달한다
ChatEventArgs e = new ChatEventArgs();
e.msgType = MessageType.UserEnter;
e.serial = serial;
e.name = Xml.Xml_FindName(serial);
BroadcastMessage(e);
//델리게이터 추가
ChatEvent += myEventHandler;
//사용자리스트를 보내준다.
string[] list = new string[chatters.Count];
lock (syncObj)
{
chatters.Keys.CopyTo(list, 0);
}
return list;
}
else //이미 사용자가 사용하고 있는 이름일 경우
{
return null;
}
}
}
