Older/WebApplication/Hello.cpp

#include "Hello.h"
#include "BoostLog.h"
#include "Dialog.h"
#include "LoginWidget.h"
#include "Session.h"
#include "WebApplication.h"
#include <Wt/Auth/Identity.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, Wt::Dbo::SqlConnectionPool &connectionPool, bool embedded)
    : Wt::WApplication(env) {
    messageResourceBundle().use(appRoot() + "wt");
    messageResourceBundle().use(appRoot() + "auth_strings");
    messageResourceBundle().use(appRoot() + "auth_css_theme");
    useStyleSheet("/resources/app.css");
    LOG(info) << "app root: " << appRoot();
    m_session = std::make_unique<Session>(connectionPool);
    m_session->login().changed().connect(this, &Hello::authEvent);
    setTitle("Hello world");
    if (!embedded) {
        setTheme(std::make_shared<Wt::WBootstrap2Theme>());
        m_root = root();
    } else {
        std::unique_ptr<Wt::WContainerWidget> topPtr = std::make_unique<Wt::WContainerWidget>();
        m_root = topPtr.get();
        const std::string *div = env.getParameter("div");
        if (div) {
            setJavaScriptClass(*div);
            bindWidget(std::move(topPtr), *div);
        } else {
            LOG(error) << "Missing: parameter: 'div'";
        }
        internalPathChanged().connect(this, &Hello::handlePathChange);
        auto externalPath = env.getParameter("path");
        if (externalPath != nullptr) {
            m_externalPath = *externalPath;
            LOG(info) << "external path: " << m_externalPath;
        } else {
            auto parameters = env.getParameterMap();
            for (auto &p : parameters) {
                LOG(info) << p.first;
            }
        }
        LOG(info) << "url: " << url();
        LOG(info) << "relative resources url: " << relativeResourcesUrl();
        LOG(info) << "resources url: " << resourcesUrl();
    }

    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>"));
    }

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

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

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

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

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

    auto app = Amass::Singleton<WebApplication>::instance();

    m_root->addWidget(std::make_unique<Dialog>());

    if (!m_externalPath.empty()) {
        handlePathChange(m_externalPath);
    }
}

Hello::~Hello() {
}

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

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.";
    }
}

void Hello::handlePathChange(const std::string &path) {
    LOG(info) << "handlePathChange: " << path;
    if (path.starts_with("/wt/login") || path.starts_with("/wt/register")) {
        m_root->clear();
        m_root->setStyleClass("WtCenterContainer");
        m_root->addNew<LoginWidget>(m_session->users(), m_session->login());
    }
}