Expose wallet creation to the GUI via WalletController

Co-authored-by: João Barbosa <joao.paulo.barbosa@gmail.com>

src/qt/createwalletdialog.cpp

@@ -16,7 +16,7 @@ CreateWalletDialog::CreateWalletDialog(QWidget* parent) :
     ui(new Ui::CreateWalletDialog)
 {
     ui->setupUi(this);
-    ui->buttonBox->button(QDialogButtonBox::Ok)->setText("Create");
+    ui->buttonBox->button(QDialogButtonBox::Ok)->setText(tr("Create"));
     ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(false);
     ui->wallet_name_line_edit->setFocus(Qt::ActiveWindowFocusReason);
 

src/qt/guiconstants.h

@@ -5,6 +5,8 @@
 #ifndef BITCOIN_QT_GUICONSTANTS_H
 #define BITCOIN_QT_GUICONSTANTS_H
 
+#include <cstdint>
+
 /* Milliseconds between model updates */
 static const int MODEL_UPDATE_DELAY = 250;
 

src/qt/walletcontroller.cpp

@@ -2,9 +2,14 @@
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
+#include <qt/askpassphrasedialog.h>
+#include <qt/createwalletdialog.h>
+#include <qt/guiconstants.h>
 #include <qt/guiutil.h>
 #include <qt/walletcontroller.h>
 
+#include <wallet/wallet.h>
+
 #include <interfaces/handler.h>
 #include <interfaces/node.h>
 
@@ -162,6 +167,93 @@ void WalletControllerActivity::showProgressDialog(const QString& label_text)
     GUIUtil::PolishProgressDialog(m_progress_dialog);
 }
 
+CreateWalletActivity::CreateWalletActivity(WalletController* wallet_controller, QWidget* parent_widget)
+    : WalletControllerActivity(wallet_controller, parent_widget)
+{
+    m_passphrase.reserve(MAX_PASSPHRASE_SIZE);
+}
+
+CreateWalletActivity::~CreateWalletActivity()
+{
+    delete m_create_wallet_dialog;
+    delete m_passphrase_dialog;
+}
+
+void CreateWalletActivity::askPasshprase()
+{
+    m_passphrase_dialog = new AskPassphraseDialog(AskPassphraseDialog::Encrypt, m_parent_widget, &m_passphrase);
+    m_passphrase_dialog->show();
+
+    connect(m_passphrase_dialog, &QObject::destroyed, [this] {
+        m_passphrase_dialog = nullptr;
+    });
+    connect(m_passphrase_dialog, &QDialog::accepted, [this] {
+        createWallet();
+    });
+    connect(m_passphrase_dialog, &QDialog::rejected, [this] {
+        Q_EMIT finished();
+    });
+}
+
+void CreateWalletActivity::createWallet()
+{
+    showProgressDialog(tr("Creating Wallet <b>%1</b>...").arg(m_create_wallet_dialog->walletName().toHtmlEscaped()));
+
+    std::string name = m_create_wallet_dialog->walletName().toStdString();
+    uint64_t flags = 0;
+    if (m_create_wallet_dialog->disablePrivateKeys()) {
+        flags |= WALLET_FLAG_DISABLE_PRIVATE_KEYS;
+    }
+    if (m_create_wallet_dialog->blank()) {
+        flags |= WALLET_FLAG_BLANK_WALLET;
+    }
+
+    QTimer::singleShot(500, worker(), [this, name, flags] {
+        std::unique_ptr<interfaces::Wallet> wallet;
+        WalletCreationStatus status = node().createWallet(m_passphrase, flags, name, m_error_message, m_warning_message, wallet);
+
+        if (status == WalletCreationStatus::SUCCESS) m_wallet_model = m_wallet_controller->getOrCreateWallet(std::move(wallet));
+
+        QTimer::singleShot(500, this, &CreateWalletActivity::finish);
+    });
+}
+
+void CreateWalletActivity::finish()
+{
+    m_progress_dialog->hide();
+
+    if (!m_error_message.empty()) {
+        QMessageBox::critical(m_parent_widget, tr("Create wallet failed"), QString::fromStdString(m_error_message));
+    } else if (!m_warning_message.empty()) {
+        QMessageBox::warning(m_parent_widget, tr("Create wallet warning"), QString::fromStdString(m_warning_message));
+    }
+
+    if (m_wallet_model) Q_EMIT created(m_wallet_model);
+
+    Q_EMIT finished();
+}
+
+void CreateWalletActivity::create()
+{
+    m_create_wallet_dialog = new CreateWalletDialog(m_parent_widget);
+    m_create_wallet_dialog->setWindowModality(Qt::ApplicationModal);
+    m_create_wallet_dialog->show();
+
+    connect(m_create_wallet_dialog, &QObject::destroyed, [this] {
+        m_create_wallet_dialog = nullptr;
+    });
+    connect(m_create_wallet_dialog, &QDialog::rejected, [this] {
+        Q_EMIT finished();
+    });
+    connect(m_create_wallet_dialog, &QDialog::accepted, [this] {
+        if (m_create_wallet_dialog->encrypt()) {
+            askPasshprase();
+        } else {
+            createWallet();
+        }
+    });
+}
+
 OpenWalletActivity::OpenWalletActivity(WalletController* wallet_controller, QWidget* parent_widget)
     : WalletControllerActivity(wallet_controller, parent_widget)
 {

src/qt/walletcontroller.h

@@ -6,6 +6,7 @@
 #define BITCOIN_QT_WALLETCONTROLLER_H
 
 #include <qt/walletmodel.h>
+#include <support/allocators/secure.h>
 #include <sync.h>
 
 #include <map>
@@ -16,8 +17,9 @@
 #include <QMessageBox>
 #include <QMutex>
 #include <QProgressDialog>
-#include <QString>
 #include <QThread>
+#include <QTimer>
+#include <QString>
 
 class OptionsModel;
 class PlatformStyle;
@@ -27,6 +29,9 @@ class Handler;
 class Node;
 } // namespace interfaces
 
+class AskPassphraseDialog;
+class CreateWalletActivity;
+class CreateWalletDialog;
 class OpenWalletActivity;
 class WalletControllerActivity;
 
@@ -98,6 +103,30 @@ protected:
     std::string m_warning_message;
 };
 
+
+class CreateWalletActivity : public WalletControllerActivity
+{
+    Q_OBJECT
+
+public:
+    CreateWalletActivity(WalletController* wallet_controller, QWidget* parent_widget);
+    virtual ~CreateWalletActivity();
+
+    void create();
+
+Q_SIGNALS:
+    void created(WalletModel* wallet_model);
+
+private:
+    void askPasshprase();
+    void createWallet();
+    void finish();
+
+    SecureString m_passphrase;
+    CreateWalletDialog* m_create_wallet_dialog{nullptr};
+    AskPassphraseDialog* m_passphrase_dialog{nullptr};
+};
+
 class OpenWalletActivity : public WalletControllerActivity
 {
     Q_OBJECT