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/*
* Copyright (C) 2008 Emweb bvba, Heverlee, Belgium.
*
* See the LICENSE file for terms of use.
*/
#include <Wt/WApplication>
#include <Wt/WContainerWidget>
#include <Wt/WEnvironment>
#include <Wt/WPushButton>
#include <Wt/WServer>
#include <Wt/WText>
#include <Wt/WTimer>
#include "SimpleChatServer.h"
#include "PopupChatWidget.h"
using namespace Wt;
/**
* @addtogroup chatexample
*/
/*@{*/
/*! \brief A chat demo application.
*/
class ChatApplication : public WApplication
{
public:
/*! \brief Create a new instance.
*/
ChatApplication(const WEnvironment& env, SimpleChatServer& server);
private:
SimpleChatServer& server_;
Wt::WText *javaScriptError_;
const WEnvironment& env_;
Wt::WTimer *timer_;
/*! \brief Add another chat client.
*/
void addChatWidget();
void javaScriptTest();
void emptyFunc();
};
ChatApplication::ChatApplication(const WEnvironment& env,
SimpleChatServer& server)
: WApplication(env),
server_(server),
env_(env)
{
setTitle("Wt Chat");
useStyleSheet("chatapp.css");
messageResourceBundle().use(appRoot() + "simplechat");
javaScriptTest();
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);
}
void ChatApplication::javaScriptTest()
{
if(!env_.javaScript()){
javaScriptError_ = new WText(WString::tr("serverpushwarning"), root());
// The 5 second timer is a fallback for real server push. The updated
// server state will piggy back on the response to this timeout.
timer_ = new Wt::WTimer(root());
timer_->setInterval(5000);
timer_->timeout().connect(this, &ChatApplication::emptyFunc);
timer_->start();
}
}
void ChatApplication::emptyFunc()
{}
void ChatApplication::addChatWidget()
{
SimpleChatWidget *chatWidget2 = new SimpleChatWidget(server_, root());
chatWidget2->setStyleClass("chat");
}
/*! \brief A chat application widget.
*/
class ChatWidget : public WApplication
{
public:
ChatWidget(const WEnvironment& env, SimpleChatServer& server);
private:
JSignal<WString> login_;
};
ChatWidget::ChatWidget(const WEnvironment& env, SimpleChatServer& server)
: WApplication(env),
login_(this, "login")
{
setCssTheme("");
useStyleSheet("chatwidget.css");
useStyleSheet("chatwidget_ie6.css", "lt IE 7");
messageResourceBundle().use(appRoot() + "simplechat");
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)
{
return new ChatApplication(env, server);
}
WApplication *createWidget(const WEnvironment& env, SimpleChatServer& server)
{
return new ChatWidget(env, server);
}
int main(int argc, char **argv)
{
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();
}
}
/*@}*/
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