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|
// Copyright (c) 2011-2020 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#if defined(HAVE_CONFIG_H)
#include <config/bitcoin-config.h>
#endif
#include <qt/bitcoin.h>
#include <qt/bitcoingui.h>
#include <chainparams.h>
#include <qt/clientmodel.h>
#include <qt/guiconstants.h>
#include <qt/guiutil.h>
#include <qt/intro.h>
#include <qt/networkstyle.h>
#include <qt/optionsmodel.h>
#include <qt/platformstyle.h>
#include <qt/splashscreen.h>
#include <qt/utilitydialog.h>
#include <qt/winshutdownmonitor.h>
#ifdef ENABLE_WALLET
#include <qt/paymentserver.h>
#include <qt/walletcontroller.h>
#include <qt/walletmodel.h>
#endif // ENABLE_WALLET
#include <interfaces/handler.h>
#include <interfaces/node.h>
#include <node/context.h>
#include <noui.h>
#include <uint256.h>
#include <util/system.h>
#include <util/threadnames.h>
#include <util/translation.h>
#include <validation.h>
#include <memory>
#include <QApplication>
#include <QDebug>
#include <QLibraryInfo>
#include <QLocale>
#include <QMessageBox>
#include <QSettings>
#include <QThread>
#include <QTimer>
#include <QTranslator>
#if defined(QT_STATICPLUGIN)
#include <QtPlugin>
#if defined(QT_QPA_PLATFORM_XCB)
Q_IMPORT_PLUGIN(QXcbIntegrationPlugin);
#elif defined(QT_QPA_PLATFORM_WINDOWS)
Q_IMPORT_PLUGIN(QWindowsIntegrationPlugin);
#elif defined(QT_QPA_PLATFORM_COCOA)
Q_IMPORT_PLUGIN(QCocoaIntegrationPlugin);
#endif
#endif
// Declare meta types used for QMetaObject::invokeMethod
Q_DECLARE_METATYPE(bool*)
Q_DECLARE_METATYPE(CAmount)
Q_DECLARE_METATYPE(SynchronizationState)
Q_DECLARE_METATYPE(uint256)
static void RegisterMetaTypes()
{
// Register meta types used for QMetaObject::invokeMethod and Qt::QueuedConnection
qRegisterMetaType<bool*>();
qRegisterMetaType<SynchronizationState>();
#ifdef ENABLE_WALLET
qRegisterMetaType<WalletModel*>();
#endif
// Register typedefs (see http://qt-project.org/doc/qt-5/qmetatype.html#qRegisterMetaType)
// IMPORTANT: if CAmount is no longer a typedef use the normal variant above (see https://doc.qt.io/qt-5/qmetatype.html#qRegisterMetaType-1)
qRegisterMetaType<CAmount>("CAmount");
qRegisterMetaType<size_t>("size_t");
qRegisterMetaType<std::function<void()>>("std::function<void()>");
qRegisterMetaType<QMessageBox::Icon>("QMessageBox::Icon");
qRegisterMetaType<interfaces::BlockAndHeaderTipInfo>("interfaces::BlockAndHeaderTipInfo");
}
static QString GetLangTerritory()
{
QSettings settings;
// Get desired locale (e.g. "de_DE")
// 1) System default language
QString lang_territory = QLocale::system().name();
// 2) Language from QSettings
QString lang_territory_qsettings = settings.value("language", "").toString();
if(!lang_territory_qsettings.isEmpty())
lang_territory = lang_territory_qsettings;
// 3) -lang command line argument
lang_territory = QString::fromStdString(gArgs.GetArg("-lang", lang_territory.toStdString()));
return lang_territory;
}
/** Set up translations */
static void initTranslations(QTranslator &qtTranslatorBase, QTranslator &qtTranslator, QTranslator &translatorBase, QTranslator &translator)
{
// Remove old translators
QApplication::removeTranslator(&qtTranslatorBase);
QApplication::removeTranslator(&qtTranslator);
QApplication::removeTranslator(&translatorBase);
QApplication::removeTranslator(&translator);
// Get desired locale (e.g. "de_DE")
// 1) System default language
QString lang_territory = GetLangTerritory();
// Convert to "de" only by truncating "_DE"
QString lang = lang_territory;
lang.truncate(lang_territory.lastIndexOf('_'));
// Load language files for configured locale:
// - First load the translator for the base language, without territory
// - Then load the more specific locale translator
// Load e.g. qt_de.qm
if (qtTranslatorBase.load("qt_" + lang, QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
QApplication::installTranslator(&qtTranslatorBase);
// Load e.g. qt_de_DE.qm
if (qtTranslator.load("qt_" + lang_territory, QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
QApplication::installTranslator(&qtTranslator);
// Load e.g. bitcoin_de.qm (shortcut "de" needs to be defined in bitcoin.qrc)
if (translatorBase.load(lang, ":/translations/"))
QApplication::installTranslator(&translatorBase);
// Load e.g. bitcoin_de_DE.qm (shortcut "de_DE" needs to be defined in bitcoin.qrc)
if (translator.load(lang_territory, ":/translations/"))
QApplication::installTranslator(&translator);
}
/* qDebug() message handler --> debug.log */
void DebugMessageHandler(QtMsgType type, const QMessageLogContext& context, const QString &msg)
{
Q_UNUSED(context);
if (type == QtDebugMsg) {
LogPrint(BCLog::QT, "GUI: %s\n", msg.toStdString());
} else {
LogPrintf("GUI: %s\n", msg.toStdString());
}
}
BitcoinCore::BitcoinCore(interfaces::Node& node) :
QObject(), m_node(node)
{
}
void BitcoinCore::handleRunawayException(const std::exception *e)
{
PrintExceptionContinue(e, "Runaway exception");
Q_EMIT runawayException(QString::fromStdString(m_node.getWarnings().translated));
}
void BitcoinCore::initialize()
{
try
{
util::ThreadRename("qt-init");
qDebug() << __func__ << ": Running initialization in thread";
interfaces::BlockAndHeaderTipInfo tip_info;
bool rv = m_node.appInitMain(&tip_info);
Q_EMIT initializeResult(rv, tip_info);
} catch (const std::exception& e) {
handleRunawayException(&e);
} catch (...) {
handleRunawayException(nullptr);
}
}
void BitcoinCore::shutdown()
{
try
{
qDebug() << __func__ << ": Running Shutdown in thread";
m_node.appShutdown();
qDebug() << __func__ << ": Shutdown finished";
Q_EMIT shutdownResult();
} catch (const std::exception& e) {
handleRunawayException(&e);
} catch (...) {
handleRunawayException(nullptr);
}
}
static int qt_argc = 1;
static const char* qt_argv = "bitcoin-qt";
BitcoinApplication::BitcoinApplication(interfaces::Node& node):
QApplication(qt_argc, const_cast<char **>(&qt_argv)),
coreThread(nullptr),
m_node(node),
optionsModel(nullptr),
clientModel(nullptr),
window(nullptr),
pollShutdownTimer(nullptr),
returnValue(0),
platformStyle(nullptr)
{
RegisterMetaTypes();
setQuitOnLastWindowClosed(false);
}
void BitcoinApplication::setupPlatformStyle()
{
// UI per-platform customization
// This must be done inside the BitcoinApplication constructor, or after it, because
// PlatformStyle::instantiate requires a QApplication
std::string platformName;
platformName = gArgs.GetArg("-uiplatform", BitcoinGUI::DEFAULT_UIPLATFORM);
platformStyle = PlatformStyle::instantiate(QString::fromStdString(platformName));
if (!platformStyle) // Fall back to "other" if specified name not found
platformStyle = PlatformStyle::instantiate("other");
assert(platformStyle);
}
BitcoinApplication::~BitcoinApplication()
{
if(coreThread)
{
qDebug() << __func__ << ": Stopping thread";
coreThread->quit();
coreThread->wait();
qDebug() << __func__ << ": Stopped thread";
}
delete window;
window = nullptr;
delete platformStyle;
platformStyle = nullptr;
}
#ifdef ENABLE_WALLET
void BitcoinApplication::createPaymentServer()
{
paymentServer = new PaymentServer(this);
}
#endif
void BitcoinApplication::createOptionsModel(bool resetSettings)
{
optionsModel = new OptionsModel(m_node, this, resetSettings);
}
void BitcoinApplication::createWindow(const NetworkStyle *networkStyle)
{
window = new BitcoinGUI(m_node, platformStyle, networkStyle, nullptr);
pollShutdownTimer = new QTimer(window);
connect(pollShutdownTimer, &QTimer::timeout, window, &BitcoinGUI::detectShutdown);
}
void BitcoinApplication::createSplashScreen(const NetworkStyle *networkStyle)
{
SplashScreen *splash = new SplashScreen(m_node, nullptr, networkStyle);
// We don't hold a direct pointer to the splash screen after creation, but the splash
// screen will take care of deleting itself when finish() happens.
splash->show();
connect(this, &BitcoinApplication::splashFinished, splash, &SplashScreen::finish);
connect(this, &BitcoinApplication::requestedShutdown, splash, &QWidget::close);
}
bool BitcoinApplication::baseInitialize()
{
return m_node.baseInitialize();
}
void BitcoinApplication::startThread()
{
if(coreThread)
return;
coreThread = new QThread(this);
BitcoinCore *executor = new BitcoinCore(m_node);
executor->moveToThread(coreThread);
/* communication to and from thread */
connect(executor, &BitcoinCore::initializeResult, this, &BitcoinApplication::initializeResult);
connect(executor, &BitcoinCore::shutdownResult, this, &BitcoinApplication::shutdownResult);
connect(executor, &BitcoinCore::runawayException, this, &BitcoinApplication::handleRunawayException);
connect(this, &BitcoinApplication::requestedInitialize, executor, &BitcoinCore::initialize);
connect(this, &BitcoinApplication::requestedShutdown, executor, &BitcoinCore::shutdown);
/* make sure executor object is deleted in its own thread */
connect(coreThread, &QThread::finished, executor, &QObject::deleteLater);
coreThread->start();
}
void BitcoinApplication::parameterSetup()
{
// Default printtoconsole to false for the GUI. GUI programs should not
// print to the console unnecessarily.
gArgs.SoftSetBoolArg("-printtoconsole", false);
m_node.initLogging();
m_node.initParameterInteraction();
}
void BitcoinApplication::InitializePruneSetting(bool prune)
{
// If prune is set, intentionally override existing prune size with
// the default size since this is called when choosing a new datadir.
optionsModel->SetPruneTargetGB(prune ? DEFAULT_PRUNE_TARGET_GB : 0, true);
}
void BitcoinApplication::requestInitialize()
{
qDebug() << __func__ << ": Requesting initialize";
startThread();
Q_EMIT requestedInitialize();
}
void BitcoinApplication::requestShutdown()
{
// Show a simple window indicating shutdown status
// Do this first as some of the steps may take some time below,
// for example the RPC console may still be executing a command.
shutdownWindow.reset(ShutdownWindow::showShutdownWindow(window));
qDebug() << __func__ << ": Requesting shutdown";
startThread();
window->hide();
// Must disconnect node signals otherwise current thread can deadlock since
// no event loop is running.
window->unsubscribeFromCoreSignals();
// Request node shutdown, which can interrupt long operations, like
// rescanning a wallet.
m_node.startShutdown();
// Unsetting the client model can cause the current thread to wait for node
// to complete an operation, like wait for a RPC execution to complete.
window->setClientModel(nullptr);
pollShutdownTimer->stop();
delete clientModel;
clientModel = nullptr;
// Request shutdown from core thread
Q_EMIT requestedShutdown();
}
void BitcoinApplication::initializeResult(bool success, interfaces::BlockAndHeaderTipInfo tip_info)
{
qDebug() << __func__ << ": Initialization result: " << success;
// Set exit result.
returnValue = success ? EXIT_SUCCESS : EXIT_FAILURE;
if(success)
{
// Log this only after AppInitMain finishes, as then logging setup is guaranteed complete
qInfo() << "Platform customization:" << platformStyle->getName();
clientModel = new ClientModel(m_node, optionsModel);
window->setClientModel(clientModel, &tip_info);
#ifdef ENABLE_WALLET
if (WalletModel::isWalletEnabled()) {
m_wallet_controller = new WalletController(*clientModel, platformStyle, this);
window->setWalletController(m_wallet_controller);
if (paymentServer) {
paymentServer->setOptionsModel(optionsModel);
}
}
#endif // ENABLE_WALLET
// If -min option passed, start window minimized (iconified) or minimized to tray
if (!gArgs.GetBoolArg("-min", false)) {
window->show();
} else if (clientModel->getOptionsModel()->getMinimizeToTray() && window->hasTrayIcon()) {
// do nothing as the window is managed by the tray icon
} else {
window->showMinimized();
}
Q_EMIT splashFinished();
Q_EMIT windowShown(window);
#ifdef ENABLE_WALLET
// Now that initialization/startup is done, process any command-line
// bitcoin: URIs or payment requests:
if (paymentServer) {
connect(paymentServer, &PaymentServer::receivedPaymentRequest, window, &BitcoinGUI::handlePaymentRequest);
connect(window, &BitcoinGUI::receivedURI, paymentServer, &PaymentServer::handleURIOrFile);
connect(paymentServer, &PaymentServer::message, [this](const QString& title, const QString& message, unsigned int style) {
window->message(title, message, style);
});
QTimer::singleShot(100, paymentServer, &PaymentServer::uiReady);
}
#endif
pollShutdownTimer->start(200);
} else {
Q_EMIT splashFinished(); // Make sure splash screen doesn't stick around during shutdown
quit(); // Exit first main loop invocation
}
}
void BitcoinApplication::shutdownResult()
{
quit(); // Exit second main loop invocation after shutdown finished
}
void BitcoinApplication::handleRunawayException(const QString &message)
{
QMessageBox::critical(nullptr, "Runaway exception", BitcoinGUI::tr("A fatal error occurred. %1 can no longer continue safely and will quit.").arg(PACKAGE_NAME) + QString("<br><br>") + message);
::exit(EXIT_FAILURE);
}
WId BitcoinApplication::getMainWinId() const
{
if (!window)
return 0;
return window->winId();
}
static void SetupUIArgs(ArgsManager& argsman)
{
argsman.AddArg("-choosedatadir", strprintf("Choose data directory on startup (default: %u)", DEFAULT_CHOOSE_DATADIR), ArgsManager::ALLOW_ANY, OptionsCategory::GUI);
argsman.AddArg("-lang=<lang>", "Set language, for example \"de_DE\" (default: system locale)", ArgsManager::ALLOW_ANY, OptionsCategory::GUI);
argsman.AddArg("-min", "Start minimized", ArgsManager::ALLOW_ANY, OptionsCategory::GUI);
argsman.AddArg("-resetguisettings", "Reset all settings changed in the GUI", ArgsManager::ALLOW_ANY, OptionsCategory::GUI);
argsman.AddArg("-splash", strprintf("Show splash screen on startup (default: %u)", DEFAULT_SPLASHSCREEN), ArgsManager::ALLOW_ANY, OptionsCategory::GUI);
argsman.AddArg("-uiplatform", strprintf("Select platform to customize UI for (one of windows, macosx, other; default: %s)", BitcoinGUI::DEFAULT_UIPLATFORM), ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::GUI);
}
int GuiMain(int argc, char* argv[])
{
#ifdef WIN32
util::WinCmdLineArgs winArgs;
std::tie(argc, argv) = winArgs.get();
#endif
SetupEnvironment();
util::ThreadSetInternalName("main");
NodeContext node_context;
std::unique_ptr<interfaces::Node> node = interfaces::MakeNode(&node_context);
// Subscribe to global signals from core
std::unique_ptr<interfaces::Handler> handler_message_box = node->handleMessageBox(noui_ThreadSafeMessageBox);
std::unique_ptr<interfaces::Handler> handler_question = node->handleQuestion(noui_ThreadSafeQuestion);
std::unique_ptr<interfaces::Handler> handler_init_message = node->handleInitMessage(noui_InitMessage);
// Do not refer to data directory yet, this can be overridden by Intro::pickDataDirectory
/// 1. Basic Qt initialization (not dependent on parameters or configuration)
Q_INIT_RESOURCE(bitcoin);
Q_INIT_RESOURCE(bitcoin_locale);
// Generate high-dpi pixmaps
QApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
#if QT_VERSION >= 0x050600
QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
#endif
BitcoinApplication app(*node);
/// 2. Parse command-line options. We do this after qt in order to show an error if there are problems parsing these
// Command-line options take precedence:
node->setupServerArgs();
SetupUIArgs(gArgs);
std::string error;
if (!node->parseParameters(argc, argv, error)) {
node->initError(strprintf(Untranslated("Error parsing command line arguments: %s\n"), error));
// Create a message box, because the gui has neither been created nor has subscribed to core signals
QMessageBox::critical(nullptr, PACKAGE_NAME,
// message can not be translated because translations have not been initialized
QString::fromStdString("Error parsing command line arguments: %1.").arg(QString::fromStdString(error)));
return EXIT_FAILURE;
}
// Now that the QApplication is setup and we have parsed our parameters, we can set the platform style
app.setupPlatformStyle();
/// 3. Application identification
// must be set before OptionsModel is initialized or translations are loaded,
// as it is used to locate QSettings
QApplication::setOrganizationName(QAPP_ORG_NAME);
QApplication::setOrganizationDomain(QAPP_ORG_DOMAIN);
QApplication::setApplicationName(QAPP_APP_NAME_DEFAULT);
/// 4. Initialization of translations, so that intro dialog is in user's language
// Now that QSettings are accessible, initialize translations
QTranslator qtTranslatorBase, qtTranslator, translatorBase, translator;
initTranslations(qtTranslatorBase, qtTranslator, translatorBase, translator);
// Show help message immediately after parsing command-line options (for "-lang") and setting locale,
// but before showing splash screen.
if (HelpRequested(gArgs) || gArgs.IsArgSet("-version")) {
HelpMessageDialog help(*node, nullptr, gArgs.IsArgSet("-version"));
help.showOrPrint();
return EXIT_SUCCESS;
}
/// 5. Now that settings and translations are available, ask user for data directory
// User language is set up: pick a data directory
bool did_show_intro = false;
bool prune = false; // Intro dialog prune check box
// Gracefully exit if the user cancels
if (!Intro::showIfNeeded(*node, did_show_intro, prune)) return EXIT_SUCCESS;
/// 6. Determine availability of data directory and parse bitcoin.conf
/// - Do not call GetDataDir(true) before this step finishes
if (!CheckDataDirOption()) {
node->initError(strprintf(Untranslated("Specified data directory \"%s\" does not exist.\n"), gArgs.GetArg("-datadir", "")));
QMessageBox::critical(nullptr, PACKAGE_NAME,
QObject::tr("Error: Specified data directory \"%1\" does not exist.").arg(QString::fromStdString(gArgs.GetArg("-datadir", ""))));
return EXIT_FAILURE;
}
if (!node->readConfigFiles(error)) {
node->initError(strprintf(Untranslated("Error reading configuration file: %s\n"), error));
QMessageBox::critical(nullptr, PACKAGE_NAME,
QObject::tr("Error: Cannot parse configuration file: %1.").arg(QString::fromStdString(error)));
return EXIT_FAILURE;
}
/// 7. Determine network (and switch to network specific options)
// - Do not call Params() before this step
// - Do this after parsing the configuration file, as the network can be switched there
// - QSettings() will use the new application name after this, resulting in network-specific settings
// - Needs to be done before createOptionsModel
// Check for -chain, -testnet or -regtest parameter (Params() calls are only valid after this clause)
try {
node->selectParams(gArgs.GetChainName());
} catch(std::exception &e) {
node->initError(Untranslated(strprintf("%s\n", e.what())));
QMessageBox::critical(nullptr, PACKAGE_NAME, QObject::tr("Error: %1").arg(e.what()));
return EXIT_FAILURE;
}
#ifdef ENABLE_WALLET
// Parse URIs on command line -- this can affect Params()
PaymentServer::ipcParseCommandLine(*node, argc, argv);
#endif
if (!node->initSettings(error)) {
node->initError(Untranslated(error));
QMessageBox::critical(nullptr, PACKAGE_NAME, QObject::tr("Error initializing settings: %1").arg(QString::fromStdString(error)));
return EXIT_FAILURE;
}
QScopedPointer<const NetworkStyle> networkStyle(NetworkStyle::instantiate(Params().NetworkIDString()));
assert(!networkStyle.isNull());
// Allow for separate UI settings for testnets
QApplication::setApplicationName(networkStyle->getAppName());
// Re-initialize translations after changing application name (language in network-specific settings can be different)
initTranslations(qtTranslatorBase, qtTranslator, translatorBase, translator);
#ifdef ENABLE_WALLET
/// 8. URI IPC sending
// - Do this early as we don't want to bother initializing if we are just calling IPC
// - Do this *after* setting up the data directory, as the data directory hash is used in the name
// of the server.
// - Do this after creating app and setting up translations, so errors are
// translated properly.
if (PaymentServer::ipcSendCommandLine())
exit(EXIT_SUCCESS);
// Start up the payment server early, too, so impatient users that click on
// bitcoin: links repeatedly have their payment requests routed to this process:
if (WalletModel::isWalletEnabled()) {
app.createPaymentServer();
}
#endif // ENABLE_WALLET
/// 9. Main GUI initialization
// Install global event filter that makes sure that long tooltips can be word-wrapped
app.installEventFilter(new GUIUtil::ToolTipToRichTextFilter(TOOLTIP_WRAP_THRESHOLD, &app));
// Install global event filter that makes sure that out-of-focus labels do not contain text cursor.
app.installEventFilter(new GUIUtil::LabelOutOfFocusEventFilter(&app));
#if defined(Q_OS_WIN)
// Install global event filter for processing Windows session related Windows messages (WM_QUERYENDSESSION and WM_ENDSESSION)
qApp->installNativeEventFilter(new WinShutdownMonitor());
#endif
// Install qDebug() message handler to route to debug.log
qInstallMessageHandler(DebugMessageHandler);
// Allow parameter interaction before we create the options model
app.parameterSetup();
GUIUtil::LogQtInfo();
// Load GUI settings from QSettings
app.createOptionsModel(gArgs.GetBoolArg("-resetguisettings", false));
if (did_show_intro) {
// Store intro dialog settings other than datadir (network specific)
app.InitializePruneSetting(prune);
}
if (gArgs.GetBoolArg("-splash", DEFAULT_SPLASHSCREEN) && !gArgs.GetBoolArg("-min", false))
app.createSplashScreen(networkStyle.data());
int rv = EXIT_SUCCESS;
try
{
app.createWindow(networkStyle.data());
// Perform base initialization before spinning up initialization/shutdown thread
// This is acceptable because this function only contains steps that are quick to execute,
// so the GUI thread won't be held up.
if (app.baseInitialize()) {
app.requestInitialize();
#if defined(Q_OS_WIN)
WinShutdownMonitor::registerShutdownBlockReason(QObject::tr("%1 didn't yet exit safely...").arg(PACKAGE_NAME), (HWND)app.getMainWinId());
#endif
app.exec();
app.requestShutdown();
app.exec();
rv = app.getReturnValue();
} else {
// A dialog with detailed error will have been shown by InitError()
rv = EXIT_FAILURE;
}
} catch (const std::exception& e) {
PrintExceptionContinue(&e, "Runaway exception");
app.handleRunawayException(QString::fromStdString(node->getWarnings().translated));
} catch (...) {
PrintExceptionContinue(nullptr, "Runaway exception");
app.handleRunawayException(QString::fromStdString(node->getWarnings().translated));
}
return rv;
}
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