protected void Page_Load(object sender, System.EventArgs e)
{
if (AMS.Web.RemoteScripting.InvokeMethod(this)) //if this is a callback function return
{
return;
}
txtMsg.Attributes.Add("onkeypress", "return clickButton(event,'btn')");
if (!IsPostBack)
{
if (Request.QueryString["userid"] != null && Request.QueryString["userid"] != "")
{
otherUser.Value = Request.QueryString["userid"];
ChatRoom room = ChatEngine.GetRoom(Session["UserName"].ToString(), Request.QueryString["userid"]);
string s = room.JoinRoom(Session["UserName"].ToString(), Session["UserName"].ToString());
txt.InnerText = s;
// string strScript="<script>startTimer();</script>";
// this.RegisterClientScriptBlock("timerScript",strScript);
}
else
{
Response.Write("User id Missing");
pnlChat.Visible = false;
}
}
}
public ChatRoom(string user1ID, string user1Name, string user2ID, string user2Name)
{
this.messages = new ArrayList();
this.RoomID = ChatEngine.CreateRoomID(user1ID, user2ID);
this.FirstUser = new ChatUser(user1ID, user1Name);
this.SecondUser = new ChatUser(user2ID, user2Name);
}
protected void btnExit_Click(object sender, System.EventArgs e)
{
try
{
ChatRoom room = ChatEngine.GetRoom(Session["UserName"].ToString(), Request.QueryString["userid"]);
room.LeaveRoom(Session["UserName"].ToString());
// string strScript = "<script language=javascript>self.close();</script>";
// RegisterClientScriptBlock("anything", strScript);
Response.Redirect("default.aspx");
}
catch (Exception ex)
{
}
}
/// <summary>
/// This function is called from the client when the user is about to leave the room
/// </summary>
/// <param name="otherUser"></param>
/// <returns></returns>
public string LeaveRoom(string otherUser)
{
try
{
ChatRoom room = ChatEngine.GetRoom(Session["UserName"].ToString(), otherUser);
if (room != null)
{
room.LeaveRoom(Session["UserName"].ToString());
}
}
catch (Exception ex)
{
}
return("");
}
/// <summary>
/// This function is called from the client script
/// </summary>
/// <param name="msg"></param>
/// <param name="toUserID"></param>
/// <returns></returns>
public string SendMessage(string msg, string toUserID)
{
try
{
ChatRoom room = ChatEngine.GetRoom(Session["UserName"].ToString(), toUserID);
string res = "";
if (room != null)
{
res = room.SendMessage(msg, Session["UserName"].ToString(), toUserID);
}
return(res);
}
catch (Exception ex)
{
}
return("");
}
/// <summary>
/// This function is called peridically called from the user to update the messages
/// </summary>
/// <param name="otherUserID"></param>
/// <returns></returns>
public string UpdateUser(string otherUserID)
{
try
{
ChatRoom room = ChatEngine.GetRoom(Session["UserName"].ToString(), otherUserID);
if (room != null)
{
string res = "";
if (room != null)
{
res = room.UpdateUser(Session["UserName"].ToString());
}
return(res);
}
}
catch (Exception ex)
{
}
return("");
}
/// <summary>
/// Marks the user as inactive
/// </summary>
/// <param name="userID"></param>
/// <returns></returns>
public void LeaveRoom(string userID)
{
//deactivate user
ChatUser user = this.GetUser(userID);
if (user == null)
{
return;
}
user.IsActive = false;
user.LastSeen = DateTime.Now;
this.RoomUsers.Remove(userID);
//Add leaving message
Message msg = new Message(user.UserName, "", MsgType.Left);
this.AddMsg(msg);
if (IsEmpty())
{
ChatEngine.DeleteRoom(this.RoomID);
}
}
//
/// <summary>
/// Marks the user as inactive
/// </summary>
/// <param name="userID"></param>
/// <returns></returns>
public string LeaveRoom(string userID)
{
//deactivate user
ChatUser user = this.GetUser(userID);
user.IsActive = false;
user.LastSeen = DateTime.Now;
//Add leaving message
Message msg = new Message(user.UserName, "", MsgType.Left);
this.AddMsg(msg);
//Get all the messages to the user
int lastMsgID;
ArrayList previousMsgs = this.GetMessagesSince(user.LastMessageReceived, out lastMsgID);
user.LastMessageReceived = lastMsgID;
//return the messages to the user
string str = GenerateMessagesString(previousMsgs);
if (IsEmpty())
{
ChatEngine.DeleteRoom(this.RoomID);
}
return("");
}
