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// This may look like C code, but it's really -*- C++ -*-
/*
* Copyright (C) 2008 Emweb bvba, Heverlee, Belgium.
*
* See the LICENSE file for terms of use.
*/
#ifndef SIMPLECHATWIDGET_H_
#define SIMPLECHATWIDGET_H_
#include <Wt/WContainerWidget>
#include <Wt/WJavaScript>
#include <Wt/WSound>
#include "SimpleChatServer.h"
namespace Wt {
class WApplication;
class WPushButton;
class WText;
class WLineEdit;
class WTextArea;
}
class ChatEvent;
/**
* \defgroup chatexample Chat example
*/
/*@{*/
/*! \brief A self-contained chat widget.
*/
class SimpleChatWidget : public Wt::WContainerWidget,
public SimpleChatServer::Client
{
public:
/*! \brief Create a chat widget that will connect to the given server.
*/
SimpleChatWidget(SimpleChatServer& server, Wt::WContainerWidget *parent = 0);
/*! \brief Delete a chat widget.
*/
~SimpleChatWidget();
void connect();
void disconnect();
/*! \brief Show a simple login screen.
*/
void letLogin();
/*! \brief Start a chat for the given user.
*
* Returns false if the user could not login.
*/
bool startChat(const Wt::WString& user);
void logout();
SimpleChatServer& server() { return server_; }
int userCount() { return users_.size(); }
const Wt::WString& userName() const { return user_; }
protected:
virtual void createLayout(Wt::WWidget *messages, Wt::WWidget *userList,
Wt::WWidget *messageEdit,
Wt::WWidget *sendButton, Wt::WWidget *logoutButton);
virtual void updateUsers();
virtual void newMessage();
virtual void render(Wt::WFlags<Wt::RenderFlag> flags);
protected:
bool loggedIn() const;
private:
typedef std::map<Wt::WString, bool> UserMap;
UserMap users_;
SimpleChatServer& server_;
bool loggedIn_;
Wt::JSlot clearInput_;
Wt::WString user_;
Wt::WLineEdit *userNameEdit_;
Wt::WText *statusMsg_;
Wt::WContainerWidget *messages_;
Wt::WTextArea *messageEdit_;
Wt::WPushButton *sendButton_;
Wt::WContainerWidget *userList_;
Wt::WSound* messageReceived_;
void login();
void changeName(const Wt::WString& name);
void send();
void updateUser();
/* called from another session */
void processChatEvent(const ChatEvent& event);
};
/*@}*/
#endif // SIMPLECHATWIDGET
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