Method login

launcher/LaunchController.cpp:169–315

}

void LaunchController::login()
{
    decideAccount();

    if (!m_accountToUse) {
        // if no account is selected, ask about demo
        if (!m_demo) {
            m_demo = askPlayDemo();
        }
        if (m_demo) {
            // we ask the user for a player name
            bool ok = false;
            auto name = askOfflineName("Player", m_demo, ok);
            if (ok) {
                m_session = std::make_shared<AuthSession>();
                m_session->MakeDemo(name, MinecraftAccount::uuidFromUsername(name).toString().remove(QRegularExpression("[{}-]")));
                launchInstance();
                return;
            }
        }
        // if no account is selected, we bail
        emitFailed(tr("No account selected for launch."));
        return;
    }

    // we loop until the user succeeds in logging in or gives up
    bool tryagain = true;
    unsigned int tries = 0;

    if ((m_accountToUse->accountType() != AccountType::Offline && m_accountToUse->accountState() == AccountState::Offline) ||
        m_accountToUse->shouldRefresh()) {
        // Force account refresh on the account used to launch the instance updating the AccountState
        //  only on first try and if it is not meant to be offline
        auto accounts = APPLICATION->accounts();
        accounts->requestRefresh(m_accountToUse->internalId());
    }
    while (tryagain) {
        if (tries > 0 && tries % 3 == 0) {
            auto result =
                QMessageBox::question(m_parentWidget, tr("Continue launch?"),
                                      tr("It looks like we couldn't launch after %1 tries. Do you want to continue trying?").arg(tries));

            if (result == QMessageBox::No) {
                emitAborted();
                return;
            }
        }
        tries++;
        m_session = std::make_shared<AuthSession>();
        m_session->wants_online = m_online;
        m_session->demo = m_demo;
        m_accountToUse->fillSession(m_session);

        // Launch immediately in true offline mode
        if (m_accountToUse->accountType() == AccountType::Offline) {
            launchInstance();
            return;
        }