gui: wallet creation detects external signer

src/qt/createwalletdialog.cpp

@@ -6,6 +6,7 @@
 #include <config/bitcoin-config.h>
 #endif
 
+#include <external_signer.h>
 #include <qt/createwalletdialog.h>
 #include <qt/forms/ui_createwalletdialog.h>
 
@@ -111,6 +112,28 @@ CreateWalletDialog::~CreateWalletDialog()
     delete ui;
 }
 
+#ifdef ENABLE_EXTERNAL_SIGNER
+void CreateWalletDialog::setSigners(std::vector<ExternalSigner>& signers)
+{
+    if (!signers.empty()) {
+        ui->external_signer_checkbox->setEnabled(true);
+        ui->external_signer_checkbox->setChecked(true);
+        ui->encrypt_wallet_checkbox->setEnabled(false);
+        ui->encrypt_wallet_checkbox->setChecked(false);
+        // The order matters, because connect() is called when toggling a checkbox:
+        ui->blank_wallet_checkbox->setEnabled(false);
+        ui->blank_wallet_checkbox->setChecked(false);
+        ui->disable_privkeys_checkbox->setEnabled(false);
+        ui->disable_privkeys_checkbox->setChecked(true);
+        const std::string label = signers[0].m_name;
+        ui->wallet_name_line_edit->setText(QString::fromStdString(label));
+        ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(true);
+    } else {
+        ui->external_signer_checkbox->setEnabled(false);
+    }
+}
+#endif
+
 QString CreateWalletDialog::walletName() const
 {
     return ui->wallet_name_line_edit->text();

src/qt/createwalletdialog.h

@@ -9,6 +9,10 @@
 
 class WalletModel;
 
+#ifdef ENABLE_EXTERNAL_SIGNER
+class ExternalSigner;
+#endif
+
 namespace Ui {
     class CreateWalletDialog;
 }
@@ -23,6 +27,10 @@ public:
     explicit CreateWalletDialog(QWidget* parent);
     virtual ~CreateWalletDialog();
 
+#ifdef ENABLE_EXTERNAL_SIGNER
+    void setSigners(std::vector<ExternalSigner>& signers);
+#endif
+
     QString walletName() const;
     bool isEncryptWalletChecked() const;
     bool isDisablePrivateKeysChecked() const;

src/qt/walletcontroller.cpp

@@ -291,6 +291,17 @@ void CreateWalletActivity::finish()
 void CreateWalletActivity::create()
 {
     m_create_wallet_dialog = new CreateWalletDialog(m_parent_widget);
+
+#ifdef ENABLE_EXTERNAL_SIGNER
+    std::vector<ExternalSigner> signers;
+    try {
+        signers = node().externalSigners();
+    } catch (const std::runtime_error& e) {
+        QMessageBox::critical(nullptr, tr("Can't list signers"), e.what());
+    }
+    m_create_wallet_dialog->setSigners(signers);
+#endif
+
     m_create_wallet_dialog->setWindowModality(Qt::ApplicationModal);
     m_create_wallet_dialog->show();