Chat example

Classes
class	PopupChatWidget
	A popup chat widget. More...
class	ChatApplication
	A chat demo application. More...
class	ChatWidget
	A chat application widget. More...
class	ChatEvent
	Encapsulate a chat event. More...
class	SimpleChatServer
	A simple chat server. More...
class	SimpleChatWidget
	A self-contained chat widget. More...

Typedefs
typedef boost::function< void(const ChatEvent &)>	ChatEventCallback

Functions
WApplication *	createApplication (const WEnvironment &env, SimpleChatServer &server)
WApplication *	createWidget (const WEnvironment &env, SimpleChatServer &server)
int	main (int argc, char **argv)
	ChatApplication::ChatApplication (const WEnvironment &env, SimpleChatServer &server)
	Create a new instance. More...
void	ChatApplication::addChatWidget ()
	Add another chat client. More...
	ChatWidget::ChatWidget (const WEnvironment &env, SimpleChatServer &server)

Detailed Description

Typedef Documentation

typedef boost::function<void (const ChatEvent&)> ChatEventCallback

Definition at line 81 of file SimpleChatServer.h.

Function Documentation

void ChatApplication::addChatWidget ( )

private

Add another chat client.

Definition at line 63 of file simpleChat.C.

{
  SimpleChatWidget *chatWidget2 = new SimpleChatWidget(server_, root());
  chatWidget2->setStyleClass("chat");
}

ChatApplication::ChatApplication	(	const WEnvironment &	env,
		SimpleChatServer &	server
	)

Create a new instance.

Definition at line 41 of file simpleChat.C.

  : WApplication(env),
    server_(server)
{
  setTitle("Wt Chat");
  useStyleSheet("chatapp.css");

  messageResourceBundle().use(appRoot() + "simplechat");

  root()->addWidget(new WText(WString::tr("introduction")));

  SimpleChatWidget *chatWidget = new SimpleChatWidget(server_, root());
  chatWidget->setStyleClass("chat");

  root()->addWidget(new WText(WString::tr("details")));

  WPushButton *b = new WPushButton("I'm schizophrenic ...", root());
  b->clicked().connect(b, &WPushButton::hide);
  b->clicked().connect(this, &ChatApplication::addChatWidget);
}

ChatWidget::ChatWidget	(	const WEnvironment &	env,
		SimpleChatServer &	server
	)

Definition at line 80 of file simpleChat.C.

  : WApplication(env),
    login_(this, "login")
{
  setCssTheme("");
  useStyleSheet("chatwidget.css");
  useStyleSheet("chatwidget_ie6.css", "lt IE 7");

  const std::string *div = env.getParameter("div");
  std::string defaultDiv = "div";
  if (!div)
   div = &defaultDiv;

  if (div) {
    setJavaScriptClass(*div);
    PopupChatWidget *chatWidget = new PopupChatWidget(server, *div);
    bindWidget(chatWidget, *div);

    login_.connect(chatWidget, &PopupChatWidget::setName);

    std::string chat = javaScriptClass();
    doJavaScript("if (window." + chat + "User) "
                 + chat + ".emit(" + chat + ", 'login', " + chat + "User);"
                 + "document.body.appendChild(" + chatWidget->jsRef() + ");");
  } else {
    std::cerr << "Missing: parameter: 'div'" << std::endl;
    quit();
  }
}

WApplication* createApplication	(	const WEnvironment &	env,
		SimpleChatServer &	server
	)

Definition at line 110 of file simpleChat.C.

{
  return new ChatApplication(env, server);
}

WApplication* createWidget	(	const WEnvironment &	env,
		SimpleChatServer &	server
	)

Definition at line 116 of file simpleChat.C.

{
  return new ChatWidget(env, server);
}

int main	(	int	argc,
		char **	argv
	)

Definition at line 121 of file simpleChat.C.

{
  Wt::WServer server(argv[0]);
  SimpleChatServer chatServer(server);

  server.setServerConfiguration(argc, argv, WTHTTP_CONFIGURATION);

  /*
   * We add two entry points: one for the full-window application,
   * and one for a widget that can be integrated in another page.
   */
  server.addEntryPoint(Wt::Application,
                       boost::bind(createApplication, _1,
                                   boost::ref(chatServer)));
  server.addEntryPoint(Wt::WidgetSet,
                       boost::bind(createWidget, _1,
                                   boost::ref(chatServer)), "/chat.js");

  if (server.start()) {
    int sig = Wt::WServer::waitForShutdown();
    std::cerr << "Shutting down: (signal = " << sig << ")" << std::endl;
    server.stop();
  }
}