Method sendButtonClicked

src/qt/sendcoinsdialog.cpp:488–577

}

void SendCoinsDialog::sendButtonClicked([[maybe_unused]] bool checked)
{
    if(!model || !model->getOptionsModel())
        return;

    QString question_string, informative_text, detailed_text;
    if (!PrepareSendText(question_string, informative_text, detailed_text)) return;
    assert(m_current_transaction);
    assert(!g_con_elementsmode || m_current_blind_details);

    const QString confirmation = tr("Confirm send coins");
    const bool enable_send{!model->wallet().privateKeysDisabled() || model->wallet().hasExternalSigner()};
    const bool always_show_unsigned{model->getOptionsModel()->getEnablePSBTControls()};
    auto confirmationDialog = new SendConfirmationDialog(confirmation, question_string, informative_text, detailed_text, SEND_CONFIRM_DELAY, enable_send, always_show_unsigned, this);
    confirmationDialog->setAttribute(Qt::WA_DeleteOnClose);
    // TODO: Replace QDialog::exec() with safer QDialog::show().
    const auto retval = static_cast<QMessageBox::StandardButton>(confirmationDialog->exec());

    if(retval != QMessageBox::Yes && retval != QMessageBox::Save)
    {
        fNewRecipientAllowed = true;
        return;
    }

    bool send_failure = false;
    if (retval == QMessageBox::Save) {
        // "Create Unsigned" clicked
        CMutableTransaction mtx = CMutableTransaction{*(m_current_transaction->getWtx())};
        PartiallySignedTransaction psbtx(mtx);
        bool complete = false;
        // Fill without signing
        TransactionError err = model->wallet().fillPSBT(SIGHASH_ALL, /*sign=*/false, /*bip32derivs=*/true, /*n_signed=*/nullptr, psbtx, complete);
        assert(!complete);
        assert(err == TransactionError::OK);

        // Copy PSBT to clipboard and offer to save
        presentPSBT(psbtx);
    } else {
        // "Send" clicked
        assert(!model->wallet().privateKeysDisabled() || model->wallet().hasExternalSigner());
        bool broadcast = true;
        if (model->wallet().hasExternalSigner()) {
            CMutableTransaction mtx = CMutableTransaction{*(m_current_transaction->getWtx())};
            PartiallySignedTransaction psbtx(mtx);
            bool complete = false;
            // Always fill without signing first. This prevents an external signer
            // from being called prematurely and is not expensive.
            TransactionError err = model->wallet().fillPSBT(SIGHASH_ALL, /*sign=*/false, /*bip32derivs=*/true, /*n_signed=*/nullptr, psbtx, complete);
            assert(!complete);
            assert(err == TransactionError::OK);
            send_failure = !signWithExternalSigner(psbtx, mtx, complete);
            // Don't broadcast when user rejects it on the device or there's a failure:
            broadcast = complete && !send_failure;
            if (!send_failure) {
                // A transaction signed with an external signer is not always complete,
                // e.g. in a multisig wallet.
                if (complete) {
                    // Prepare transaction for broadcast transaction if complete