Older/WebApplication/Hello.cpp

#include "Hello.h"
#include "BoostLog.h"
#include "Session.h"
#include <Wt/Auth/AuthService.h>
#include <Wt/Auth/AuthWidget.h>
#include <Wt/Auth/Identity.h>
#include <Wt/Auth/PasswordService.h>
#include <Wt/WBootstrap2Theme.h>
#include <Wt/WContainerWidget.h>
#include <Wt/WEnvironment.h>
#include <Wt/WLineEdit.h>
#include <Wt/WPushButton.h>
#include <Wt/WText.h>

Hello::Hello(const Wt::WEnvironment &env, bool embedded) : Wt::WApplication(env) {
    LOG(info) << "app root: " << appRoot();
    m_session = std::make_unique<Session>(appRoot() + "auth.db");
    m_session->login().changed().connect(this, &Hello::authEvent);
    setTitle("Hello world");
    setTheme(std::make_shared<Wt::WBootstrap2Theme>());
    Wt::WContainerWidget *top = nullptr;
    if (!embedded) {
        top = root();
    } else {
        std::unique_ptr<Wt::WContainerWidget> topPtr = std::make_unique<Wt::WContainerWidget>();
        top = topPtr.get();
        const std::string *div = env.getParameter("div");
        if (div) {
            setJavaScriptClass(*div);
            bindWidget(std::move(topPtr), *div);
        } else {
            LOG(error) << "Missing: parameter: 'div'";
        }
        LOG(info) << "url: " << url();
        LOG(info) << "relative resources url: " << relativeResourcesUrl();
        LOG(info) << "resources url: " << resourcesUrl();
        url();
    }

    if (!embedded) {
        root()->addWidget(std::make_unique<Wt::WText>("<p><emph>Note: you can also run this application "
                                                      "from within <a href=\"hello.html\">a web page</a>.</emph></p>"));
    }

    top->addWidget(std::make_unique<Wt::WText>("Your name, please ? "));
    m_nameEdit = top->addWidget(std::make_unique<Wt::WLineEdit>());
    m_nameEdit->setFocus();

    auto b = top->addWidget(std::make_unique<Wt::WPushButton>("点击我!"));
    b->setMargin(5, Wt::Side::Left);

    top->addWidget(std::make_unique<Wt::WBreak>());

    m_greeting = top->addWidget(std::make_unique<Wt::WText>());

    b->clicked().connect(this, &Hello::greet);
    m_nameEdit->enterPressed().connect(this, &Hello::greet);

    auto authWidget = std::make_unique<Wt::Auth::AuthWidget>(Session::auth(), m_session->users(), m_session->login());
    authWidget->model()->addPasswordAuth(&Session::passwordAuth());
    authWidget->setRegistrationEnabled(true);
    authWidget->processEnvironment();
    top->addWidget(std::move(authWidget));
}

Hello::~Hello() {
}

void Hello::greet() {
    m_greeting->setText("Hello there, " + m_nameEdit->text());
}

void Hello::authEvent() {
    if (m_session->login().loggedIn()) {
        const Wt::Auth::User &u = m_session->login().user();
        LOG(info) << "User " << u.id() << " (" << u.identity(Wt::Auth::Identity::LoginName) << ")"
                  << " logged in.";
    } else {
        LOG(info) << "User logged out.";
    }
}