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// Copyright (c) 2019 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <qt/walletcontroller.h>
#include <interfaces/handler.h>
#include <interfaces/node.h>
#include <algorithm>
#include <QApplication>
#include <QMessageBox>
#include <QMutexLocker>
#include <QThread>
#include <QWindow>
WalletController::WalletController(interfaces::Node& node, const PlatformStyle* platform_style, OptionsModel* options_model, QObject* parent)
: QObject(parent)
, m_node(node)
, m_platform_style(platform_style)
, m_options_model(options_model)
{
m_handler_load_wallet = m_node.handleLoadWallet([this](std::unique_ptr<interfaces::Wallet> wallet) {
getOrCreateWallet(std::move(wallet));
});
for (std::unique_ptr<interfaces::Wallet>& wallet : m_node.getWallets()) {
getOrCreateWallet(std::move(wallet));
}
m_activity_thread.start();
}
// Not using the default destructor because not all member types definitions are
// available in the header, just forward declared.
WalletController::~WalletController()
{
m_activity_thread.quit();
m_activity_thread.wait();
}
std::vector<WalletModel*> WalletController::getWallets() const
{
QMutexLocker locker(&m_mutex);
return m_wallets;
}
std::vector<std::string> WalletController::getWalletsAvailableToOpen() const
{
QMutexLocker locker(&m_mutex);
std::vector<std::string> wallets = m_node.listWalletDir();
for (WalletModel* wallet_model : m_wallets) {
auto it = std::remove(wallets.begin(), wallets.end(), wallet_model->wallet().getWalletName());
if (it != wallets.end()) wallets.erase(it);
}
return wallets;
}
OpenWalletActivity* WalletController::openWallet(const std::string& name, QWidget* parent)
{
OpenWalletActivity* activity = new OpenWalletActivity(this, name);
activity->moveToThread(&m_activity_thread);
return activity;
}
void WalletController::closeWallet(WalletModel* wallet_model, QWidget* parent)
{
QMessageBox box(parent);
box.setWindowTitle(tr("Close wallet"));
box.setText(tr("Are you sure you wish to close wallet <i>%1</i>?").arg(wallet_model->getDisplayName()));
box.setInformativeText(tr("Closing the wallet for too long can result in having to resync the entire chain if pruning is enabled."));
box.setStandardButtons(QMessageBox::Yes|QMessageBox::Cancel);
box.setDefaultButton(QMessageBox::Yes);
if (box.exec() != QMessageBox::Yes) return;
// First remove wallet from node.
wallet_model->wallet().remove();
// Now release the model.
removeAndDeleteWallet(wallet_model);
}
WalletModel* WalletController::getOrCreateWallet(std::unique_ptr<interfaces::Wallet> wallet)
{
QMutexLocker locker(&m_mutex);
// Return model instance if exists.
if (!m_wallets.empty()) {
std::string name = wallet->getWalletName();
for (WalletModel* wallet_model : m_wallets) {
if (wallet_model->wallet().getWalletName() == name) {
return wallet_model;
}
}
}
// Instantiate model and register it.
WalletModel* wallet_model = new WalletModel(std::move(wallet), m_node, m_platform_style, m_options_model, nullptr);
m_wallets.push_back(wallet_model);
connect(wallet_model, &WalletModel::unload, [this, wallet_model] {
// Defer removeAndDeleteWallet when no modal widget is active.
// TODO: remove this workaround by removing usage of QDiallog::exec.
if (QApplication::activeModalWidget()) {
connect(qApp, &QApplication::focusWindowChanged, wallet_model, [this, wallet_model]() {
if (!QApplication::activeModalWidget()) {
removeAndDeleteWallet(wallet_model);
}
}, Qt::QueuedConnection);
} else {
removeAndDeleteWallet(wallet_model);
}
});
// Re-emit coinsSent signal from wallet model.
connect(wallet_model, &WalletModel::coinsSent, this, &WalletController::coinsSent);
// Notify walletAdded signal on the GUI thread.
if (QThread::currentThread() == thread()) {
addWallet(wallet_model);
} else {
// Handler callback runs in a different thread so fix wallet model thread affinity.
wallet_model->moveToThread(thread());
QMetaObject::invokeMethod(this, "addWallet", Qt::QueuedConnection, Q_ARG(WalletModel*, wallet_model));
}
return wallet_model;
}
void WalletController::addWallet(WalletModel* wallet_model)
{
// Take ownership of the wallet model and register it.
wallet_model->setParent(this);
Q_EMIT walletAdded(wallet_model);
}
void WalletController::removeAndDeleteWallet(WalletModel* wallet_model)
{
// Unregister wallet model.
{
QMutexLocker locker(&m_mutex);
m_wallets.erase(std::remove(m_wallets.begin(), m_wallets.end(), wallet_model));
}
Q_EMIT walletRemoved(wallet_model);
// Currently this can trigger the unload since the model can hold the last
// CWallet shared pointer.
delete wallet_model;
}
OpenWalletActivity::OpenWalletActivity(WalletController* wallet_controller, const std::string& name)
: m_wallet_controller(wallet_controller)
, m_name(name)
{}
void OpenWalletActivity::open()
{
std::string error, warning;
std::unique_ptr<interfaces::Wallet> wallet = m_wallet_controller->m_node.loadWallet(m_name, error, warning);
if (!warning.empty()) {
Q_EMIT message(QMessageBox::Warning, QString::fromStdString(warning));
}
if (wallet) {
Q_EMIT opened(m_wallet_controller->getOrCreateWallet(std::move(wallet)));
} else {
Q_EMIT message(QMessageBox::Critical, QString::fromStdString(error));
}
Q_EMIT finished();
}
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