コード例 #1
0
ファイル: qt.py プロジェクト: exoeconomy/EXOS-Electrum
    def calibration_dialog(self, window):
        d = WindowModalDialog(window, _("Cosigner Pool Settings"))

        d.setMinimumSize(150, 100)

        vbox = QVBoxLayout(d)

        purge = QPushButton(_("Purge Transactions"))
        purge.clicked.connect(partial(self.purge_transaction, window))
        purge.setIcon(read_QIcon("warning.png"))
        vbox.addWidget(purge)

        vbox.addWidget(QLabel(_('Wallet Owner:')))
        grid = QGridLayout()
        vbox.addLayout(grid)

        grid.addWidget(QLabel(_('Name:')), 0, 0)
        name = QLineEdit()
        name.setText(self.config.get('wallet_owner', ''))
        grid.addWidget(name, 0, 1)

        sync = QPushButton(_("Sync Name"))
        sync.clicked.connect(partial(self.sync_name, name, window))
        vbox.addWidget(sync)

        status = QPushButton(_("Tx. Status"))
        status.clicked.connect(partial(self.tx_status_dialog, window))
        vbox.addWidget(status)

        vbox.addStretch()
        vbox.addSpacing(13)
        vbox.addLayout(Buttons(CloseButton(d), OkButton(d)))

        if not d.exec_():
            return
コード例 #2
0
    def calibration_dialog(self, window):
        d = WindowModalDialog(window, _("Cosigner Pool Settings"))

        d.setMinimumSize(150, 100)

        vbox = QVBoxLayout(d)

        purge = QPushButton(_("Purge Transactions"))
        purge.clicked.connect(self.purge_transaction)
        vbox.addWidget(purge)

        vbox.addWidget(QLabel(_('Wallet Owner:')))
        grid = QGridLayout()
        vbox.addLayout(grid)

        grid.addWidget(QLabel(_('Name:')), 0, 0)
        name = QLineEdit()
        name.setText(self.config.get('wallet_owner', ''))
        grid.addWidget(name, 0, 1)

        save = QPushButton(_("Save Name"))
        save.clicked.connect(lambda: self.config.set_key('wallet_owner', name.text()))
        vbox.addWidget(save)

        sync = QPushButton(_("Sync Name"))
        sync.clicked.connect(self.sync_name)
        vbox.addWidget(sync)

        vbox.addStretch()
        vbox.addSpacing(13)
        vbox.addLayout(Buttons(CloseButton(d), OkButton(d)))

        if not d.exec_():
            return
コード例 #3
0
    def cypherseed_dialog(self, window):
        self.warn_old_revealer()

        d = WindowModalDialog(window, "Encryption Dialog")
        d.setMinimumWidth(500)
        d.setMinimumHeight(210)
        d.setMaximumHeight(450)
        d.setContentsMargins(11, 11, 1, 1)
        self.c_dialog = d

        hbox = QHBoxLayout(d)
        self.vbox = QVBoxLayout()
        logo = QLabel()
        hbox.addWidget(logo)
        logo.setPixmap(QPixmap(icon_path('revealer.png')))
        logo.setAlignment(Qt.AlignLeft)
        hbox.addSpacing(16)
        self.vbox.addWidget(WWLabel("<b>" + _("Revealer Secret Backup Plugin") + "</b><br>"
                               + _("Ready to encrypt for revealer {}")
                                    .format(self.versioned_seed.version+'_'+self.versioned_seed.checksum)))
        self.vbox.addSpacing(11)
        hbox.addLayout(self.vbox)
        grid = QGridLayout()
        self.vbox.addLayout(grid)

        cprint = QPushButton(_("Encrypt {}'s seed").format(self.wallet_name))
        cprint.setMaximumWidth(250)
        cprint.clicked.connect(partial(self.seed_img, True))
        self.vbox.addWidget(cprint)
        self.vbox.addSpacing(1)
        self.vbox.addWidget(WWLabel("<b>"+_("OR")+"</b> "+_("type a custom alphanumerical secret below:")))
        self.text = ScanQRTextEdit()
        self.text.setTabChangesFocus(True)
        self.text.setMaximumHeight(70)
        self.text.textChanged.connect(self.customtxt_limits)
        self.vbox.addWidget(self.text)
        self.char_count = WWLabel("")
        self.char_count.setAlignment(Qt.AlignRight)
        self.vbox.addWidget(self.char_count)
        self.max_chars = WWLabel("<font color='red'>"
                                 + _("This version supports a maximum of {} characters.").format(self.MAX_PLAINTEXT_LEN)
                                 +"</font>")
        self.vbox.addWidget(self.max_chars)
        self.max_chars.setVisible(False)
        self.ctext = QPushButton(_("Encrypt custom secret"))
        self.ctext.clicked.connect(self.t)
        self.vbox.addWidget(self.ctext)
        self.ctext.setEnabled(False)
        self.vbox.addSpacing(11)
        self.vbox.addLayout(Buttons(CloseButton(d)))
        return bool(d.exec_())
コード例 #4
0
ファイル: qt.py プロジェクト: tiakansara/EXOS-Electrum
    def tx_status_dialog(self, window):
        d = QDialog(window)
        d.setWindowTitle(_("Transaction Status"))
        d.setMinimumSize(600, 300)

        vbox = QVBoxLayout(d)

        status_header = 'No transaction in progress'
        status = ''

        for window, xpub, K, _hash in self.cosigner_list:
            cosigner = server.get(_hash + '_name')
            signed = True if server.get(_hash + '_signed') else False
            signing = True if server.get(_hash + '_lock') else False
            if signed:
                status_header = 'Transaction in progress'
            if signed:
                message = 'Signed'
            elif signing:
                message = 'Signing'
            else:
                message = 'Not signed'
            status += f'<br><br> {cosigner}: <b>{message}</b>'

        for key, _hash, window in self.keys:
            cosigner = server.get(_hash + '_name')
            signed = True if server.get(_hash + '_signed') else False
            signing = True if server.get(_hash + '_lock') else False
            if signed:
                status_header = 'Transaction in progress'
            if signed:
                message = 'Signed'
            elif signing:
                message = 'Signing'
            else:
                message = 'Not signed'
            status += f'<br><br> You: <b>{message}</b>'

        self.tx_status = QLabel()
        vbox.addWidget(self.tx_status)
        self.tx_status.setTextFormat(Qt.RichText)
        self.tx_status.setText(
            _("<b>Transaction Status</b>") + ': ' + status_header + status)
        self.tx_status.show()

        vbox.addStretch()
        vbox.addSpacing(13)
        vbox.addLayout(Buttons(CloseButton(d)))
        d.setModal(True)
        d.show()
コード例 #5
0
    def settings_dialog(self, window):
        d = WindowModalDialog(window, _("Email settings"))
        d.setMinimumSize(500, 200)

        vbox = QVBoxLayout(d)
        vbox.addWidget(QLabel(_('Server hosting your email account')))
        grid = QGridLayout()
        vbox.addLayout(grid)
        grid.addWidget(QLabel('Server (IMAP)'), 0, 0)
        server_e = QLineEdit()
        server_e.setText(self.imap_server)
        grid.addWidget(server_e, 0, 1)

        grid.addWidget(QLabel('Username'), 1, 0)
        username_e = QLineEdit()
        username_e.setText(self.username)
        grid.addWidget(username_e, 1, 1)

        grid.addWidget(QLabel('Password'), 2, 0)
        password_e = QLineEdit()
        password_e.setText(self.password)
        grid.addWidget(password_e, 2, 1)

        vbox.addStretch()
        vbox.addLayout(Buttons(CloseButton(d), OkButton(d)))

        if not d.exec_():
            return

        server = str(server_e.text())
        self.config.set_key('email_server', server)
        self.imap_server = server

        username = str(username_e.text())
        self.config.set_key('email_username', username)
        self.username = username

        password = str(password_e.text())
        self.config.set_key('email_password', password)
        self.password = password

        check_connection = CheckConnectionThread(server, username, password)
        check_connection.connection_error_signal.connect(
            lambda e: window.show_message(
                _("Unable to connect to mail server:\n {}").format(e) + "\n" +
                _("Please check your connection and credentials.")))
        check_connection.start()
コード例 #6
0
    def calibration_dialog(self, window):
        d = WindowModalDialog(window, _("Revealer - Printer calibration settings"))

        d.setMinimumSize(100, 200)

        vbox = QVBoxLayout(d)
        vbox.addWidget(QLabel(''.join(["<br/>", _("If you have an old printer, or want optimal precision"),"<br/>",
                                       _("print the calibration pdf and follow the instructions "), "<br/>","<br/>",
                                    ])))
        self.calibration_h = self.config.get('calibration_h')
        self.calibration_v = self.config.get('calibration_v')
        cprint = QPushButton(_("Open calibration pdf"))
        cprint.clicked.connect(self.calibration)
        vbox.addWidget(cprint)

        vbox.addWidget(QLabel(_('Calibration values:')))
        grid = QGridLayout()
        vbox.addLayout(grid)
        grid.addWidget(QLabel(_('Right side')), 0, 0)
        horizontal = QLineEdit()
        horizontal.setText(str(self.calibration_h))
        grid.addWidget(horizontal, 0, 1)

        grid.addWidget(QLabel(_('Bottom')), 1, 0)
        vertical = QLineEdit()
        vertical.setText(str(self.calibration_v))
        grid.addWidget(vertical, 1, 1)

        vbox.addStretch()
        vbox.addSpacing(13)
        vbox.addLayout(Buttons(CloseButton(d), OkButton(d)))

        if not d.exec_():
            return

        self.calibration_h = int(Decimal(horizontal.text()))
        self.config.set_key('calibration_h', self.calibration_h)
        self.calibration_v = int(Decimal(vertical.text()))
        self.config.set_key('calibration_v', self.calibration_v)
コード例 #7
0
    def show_settings_dialog(self, window, success):
        if not success:
            window.show_message(_('Server not reachable.'))
            return

        wallet = window.wallet
        d = WindowModalDialog(window, _("TrustedCoin Information"))
        d.setMinimumSize(500, 200)
        vbox = QVBoxLayout(d)
        hbox = QHBoxLayout()

        logo = QLabel()
        logo.setPixmap(QPixmap(icon_path("trustedcoin-status.png")))
        msg = _('This wallet is protected by TrustedCoin\'s two-factor authentication.') + '<br/>'\
              + _("For more information, visit") + " <a href=\"https://api.trustedcoin.com/#/electrum-help\">https://api.trustedcoin.com/#/electrum-help</a>"
        label = QLabel(msg)
        label.setOpenExternalLinks(1)

        hbox.addStretch(10)
        hbox.addWidget(logo)
        hbox.addStretch(10)
        hbox.addWidget(label)
        hbox.addStretch(10)

        vbox.addLayout(hbox)
        vbox.addStretch(10)

        msg = _(
            'TrustedCoin charges a small fee to co-sign transactions. The fee depends on how many prepaid transactions you buy. An extra output is added to your transaction every time you run out of prepaid transactions.'
        ) + '<br/>'
        label = QLabel(msg)
        label.setWordWrap(1)
        vbox.addWidget(label)

        vbox.addStretch(10)
        grid = QGridLayout()
        vbox.addLayout(grid)

        price_per_tx = wallet.price_per_tx
        n_prepay = wallet.num_prepay(self.config)
        i = 0
        for k, v in sorted(price_per_tx.items()):
            if k == 1:
                continue
            grid.addWidget(QLabel("Pay every %d transactions:" % k), i, 0)
            grid.addWidget(
                QLabel(
                    window.format_amount(v / k) + ' ' + window.base_unit() +
                    "/tx"), i, 1)
            b = QRadioButton()
            b.setChecked(k == n_prepay)
            b.clicked.connect(lambda b, k=k: self.config.set_key(
                'trustedcoin_prepay', k, True))
            grid.addWidget(b, i, 2)
            i += 1

        n = wallet.billing_info.get('tx_remaining', 0)
        grid.addWidget(
            QLabel(_("Your wallet has {} prepaid transactions.").format(n)), i,
            0)
        vbox.addLayout(Buttons(CloseButton(d)))
        d.exec_()
コード例 #8
0
ファイル: qt.py プロジェクト: exoeconomy/EXOS-Electrum
    def tx_status_dialog(self, window):
        d = QDialog(window)
        d.setWindowTitle(_("Transaction Status"))

        d.setMinimumSize(600, 300)

        vbox = QVBoxLayout(d)

        status_header = 'No transaction in progress'
        status = ''

        data = server.get(self.wallet_hash)
        loads = json.loads(data) if data else {}
        lock = server.lock

        locked_by = lock.get('xpub') if lock else None
        signed_by = loads.get('signed', [])

        for _hash in server.cosigners():
            name = server.get(_hash+'_name')
            if not name or len(name) < 1:
                name = _hash[0:10] + '...' + _hash[-1:-5:-1]

            signed = True if _hash in signed_by else False
            signing = True if _hash == locked_by else False

            if signed or signing:
                status_header = 'Transaction in progress'
            if signed:
                message = 'Signed'
            elif signing: 
                message = 'Signing'
            else:
                message = 'Not signed'

            status += f'<br><br> {name}: <b>{message}</b>'

        for _hash in server.xpub():
            signed = True if _hash in signed_by else False
            signing = True if _hash == locked_by else False
            if signed or signing:
                status_header = 'Transaction in progress'
            if signed:
                message = 'Signed'
            elif signing: 
                message = 'Signing'
            else:
                message = 'Not signed'
            status += f'<br><br> You: <b>{message}</b>'

        self.tx_status = QLabel()
        vbox.addWidget(self.tx_status)
        self.tx_status.setTextFormat(Qt.RichText)
        self.tx_status.setText(_("<b>Transaction Status</b>") + ': ' + status_header + status)
        self.tx_status.show()

        vbox.addStretch()
        vbox.addSpacing(13)
        vbox.addLayout(Buttons(CloseButton(d)))
        
        d.setModal(True)
        d.show()
コード例 #9
0
    def __init__(self, window, plugin, keystore, device_id):
        title = _("{} Settings").format(plugin.device)
        super(SettingsDialog, self).__init__(window, title)
        self.setMaximumWidth(540)

        devmgr = plugin.device_manager()
        config = devmgr.config
        handler = keystore.handler
        thread = keystore.thread

        def invoke_client(method, *args, **kw_args):
            unpair_after = kw_args.pop('unpair_after', False)

            def task():
                client = devmgr.client_by_id(device_id)
                if not client:
                    raise RuntimeError("Device not connected")
                if method:
                    getattr(client, method)(*args, **kw_args)
                if unpair_after:
                    devmgr.unpair_id(device_id)
                return client.features

            thread.add(task, on_success=update)

        def update(features):
            self.features = features
            set_label_enabled()
            bl_hash = bh2u(features.bootloader_hash)
            bl_hash = "\n".join([bl_hash[:32], bl_hash[32:]])
            noyes = [_("No"), _("Yes")]
            endis = [_("Enable Passphrases"), _("Disable Passphrases")]
            disen = [_("Disabled"), _("Enabled")]
            setchange = [_("Set a PIN"), _("Change PIN")]

            version = "%d.%d.%d" % (features.major_version,
                                    features.minor_version,
                                    features.patch_version)
            coins = ", ".join(coin.coin_name for coin in features.coins)

            device_label.setText(features.label)
            pin_set_label.setText(noyes[features.pin_protection])
            passphrases_label.setText(disen[features.passphrase_protection])
            bl_hash_label.setText(bl_hash)
            label_edit.setText(features.label)
            device_id_label.setText(features.device_id)
            initialized_label.setText(noyes[features.initialized])
            version_label.setText(version)
            coins_label.setText(coins)
            clear_pin_button.setVisible(features.pin_protection)
            clear_pin_warning.setVisible(features.pin_protection)
            pin_button.setText(setchange[features.pin_protection])
            pin_msg.setVisible(not features.pin_protection)
            passphrase_button.setText(endis[features.passphrase_protection])
            language_label.setText(features.language)

        def set_label_enabled():
            label_apply.setEnabled(label_edit.text() != self.features.label)

        def rename():
            invoke_client('change_label', label_edit.text())

        def toggle_passphrase():
            title = _("Confirm Toggle Passphrase Protection")
            currently_enabled = self.features.passphrase_protection
            if currently_enabled:
                msg = _("After disabling passphrases, you can only pair this "
                        "EXOS-Electrum wallet if it had an empty passphrase.  "
                        "If its passphrase was not empty, you will need to "
                        "create a new wallet with the install wizard.  You "
                        "can use this wallet again at any time by re-enabling "
                        "passphrases and entering its passphrase.")
            else:
                msg = _("Your current EXOS-Electrum wallet can only be used with "
                        "an empty passphrase.  You must create a separate "
                        "wallet with the install wizard for other passphrases "
                        "as each one generates a new set of addresses.")
            msg += "\n\n" + _("Are you sure you want to proceed?")
            if not self.question(msg, title=title):
                return
            invoke_client('toggle_passphrase', unpair_after=currently_enabled)

        def set_pin():
            invoke_client('set_pin', remove=False)

        def clear_pin():
            invoke_client('set_pin', remove=True)

        def wipe_device():
            wallet = window.wallet
            if wallet and sum(wallet.get_balance()):
                title = _("Confirm Device Wipe")
                msg = _("Are you SURE you want to wipe the device?\n"
                        "Your wallet still has EXOS in it!")
                if not self.question(msg, title=title,
                                     icon=QMessageBox.Critical):
                    return
            invoke_client('wipe_device', unpair_after=True)

        def slider_moved():
            mins = timeout_slider.sliderPosition()
            timeout_minutes.setText(_("{:2d} minutes").format(mins))

        def slider_released():
            config.set_session_timeout(timeout_slider.sliderPosition() * 60)

        # Information tab
        info_tab = QWidget()
        info_layout = QVBoxLayout(info_tab)
        info_glayout = QGridLayout()
        info_glayout.setColumnStretch(2, 1)
        device_label = QLabel()
        pin_set_label = QLabel()
        passphrases_label = QLabel()
        version_label = QLabel()
        device_id_label = QLabel()
        bl_hash_label = QLabel()
        bl_hash_label.setWordWrap(True)
        coins_label = QLabel()
        coins_label.setWordWrap(True)
        language_label = QLabel()
        initialized_label = QLabel()
        rows = [
            (_("Device Label"), device_label),
            (_("PIN set"), pin_set_label),
            (_("Passphrases"), passphrases_label),
            (_("Firmware Version"), version_label),
            (_("Device ID"), device_id_label),
            (_("Bootloader Hash"), bl_hash_label),
            (_("Supported Coins"), coins_label),
            (_("Language"), language_label),
            (_("Initialized"), initialized_label),
        ]
        for row_num, (label, widget) in enumerate(rows):
            info_glayout.addWidget(QLabel(label), row_num, 0)
            info_glayout.addWidget(widget, row_num, 1)
        info_layout.addLayout(info_glayout)

        # Settings tab
        settings_tab = QWidget()
        settings_layout = QVBoxLayout(settings_tab)
        settings_glayout = QGridLayout()

        # Settings tab - Label
        label_msg = QLabel(_("Name this {}.  If you have multiple devices "
                             "their labels help distinguish them.")
                           .format(plugin.device))
        label_msg.setWordWrap(True)
        label_label = QLabel(_("Device Label"))
        label_edit = QLineEdit()
        label_edit.setMinimumWidth(150)
        label_edit.setMaxLength(plugin.MAX_LABEL_LEN)
        label_apply = QPushButton(_("Apply"))
        label_apply.clicked.connect(rename)
        label_edit.textChanged.connect(set_label_enabled)
        settings_glayout.addWidget(label_label, 0, 0)
        settings_glayout.addWidget(label_edit, 0, 1, 1, 2)
        settings_glayout.addWidget(label_apply, 0, 3)
        settings_glayout.addWidget(label_msg, 1, 1, 1, -1)

        # Settings tab - PIN
        pin_label = QLabel(_("PIN Protection"))
        pin_button = QPushButton()
        pin_button.clicked.connect(set_pin)
        settings_glayout.addWidget(pin_label, 2, 0)
        settings_glayout.addWidget(pin_button, 2, 1)
        pin_msg = QLabel(_("PIN protection is strongly recommended.  "
                           "A PIN is your only protection against someone "
                           "stealing your EXOS if they obtain physical "
                           "access to your {}.").format(plugin.device))
        pin_msg.setWordWrap(True)
        pin_msg.setStyleSheet("color: red")
        settings_glayout.addWidget(pin_msg, 3, 1, 1, -1)

        # Settings tab - Session Timeout
        timeout_label = QLabel(_("Session Timeout"))
        timeout_minutes = QLabel()
        timeout_slider = QSlider(Qt.Horizontal)
        timeout_slider.setRange(1, 60)
        timeout_slider.setSingleStep(1)
        timeout_slider.setTickInterval(5)
        timeout_slider.setTickPosition(QSlider.TicksBelow)
        timeout_slider.setTracking(True)
        timeout_msg = QLabel(
            _("Clear the session after the specified period "
              "of inactivity.  Once a session has timed out, "
              "your PIN and passphrase (if enabled) must be "
              "re-entered to use the device."))
        timeout_msg.setWordWrap(True)
        timeout_slider.setSliderPosition(config.get_session_timeout() // 60)
        slider_moved()
        timeout_slider.valueChanged.connect(slider_moved)
        timeout_slider.sliderReleased.connect(slider_released)
        settings_glayout.addWidget(timeout_label, 6, 0)
        settings_glayout.addWidget(timeout_slider, 6, 1, 1, 3)
        settings_glayout.addWidget(timeout_minutes, 6, 4)
        settings_glayout.addWidget(timeout_msg, 7, 1, 1, -1)
        settings_layout.addLayout(settings_glayout)
        settings_layout.addStretch(1)

        # Advanced tab
        advanced_tab = QWidget()
        advanced_layout = QVBoxLayout(advanced_tab)
        advanced_glayout = QGridLayout()

        # Advanced tab - clear PIN
        clear_pin_button = QPushButton(_("Disable PIN"))
        clear_pin_button.clicked.connect(clear_pin)
        clear_pin_warning = QLabel(
            _("If you disable your PIN, anyone with physical access to your "
              "{} device can spend your EXOS.").format(plugin.device))
        clear_pin_warning.setWordWrap(True)
        clear_pin_warning.setStyleSheet("color: red")
        advanced_glayout.addWidget(clear_pin_button, 0, 2)
        advanced_glayout.addWidget(clear_pin_warning, 1, 0, 1, 5)

        # Advanced tab - toggle passphrase protection
        passphrase_button = QPushButton()
        passphrase_button.clicked.connect(toggle_passphrase)
        passphrase_msg = WWLabel(PASSPHRASE_HELP)
        passphrase_warning = WWLabel(PASSPHRASE_NOT_PIN)
        passphrase_warning.setStyleSheet("color: red")
        advanced_glayout.addWidget(passphrase_button, 3, 2)
        advanced_glayout.addWidget(passphrase_msg, 4, 0, 1, 5)
        advanced_glayout.addWidget(passphrase_warning, 5, 0, 1, 5)

        # Advanced tab - wipe device
        wipe_device_button = QPushButton(_("Wipe Device"))
        wipe_device_button.clicked.connect(wipe_device)
        wipe_device_msg = QLabel(
            _("Wipe the device, removing all data from it.  The firmware "
              "is left unchanged."))
        wipe_device_msg.setWordWrap(True)
        wipe_device_warning = QLabel(
            _("Only wipe a device if you have the recovery seed written down "
              "and the device wallet(s) are empty, otherwise the EXOS "
              "will be lost forever."))
        wipe_device_warning.setWordWrap(True)
        wipe_device_warning.setStyleSheet("color: red")
        advanced_glayout.addWidget(wipe_device_button, 6, 2)
        advanced_glayout.addWidget(wipe_device_msg, 7, 0, 1, 5)
        advanced_glayout.addWidget(wipe_device_warning, 8, 0, 1, 5)
        advanced_layout.addLayout(advanced_glayout)
        advanced_layout.addStretch(1)

        tabs = QTabWidget(self)
        tabs.addTab(info_tab, _("Information"))
        tabs.addTab(settings_tab, _("Settings"))
        tabs.addTab(advanced_tab, _("Advanced"))
        dialog_vbox = QVBoxLayout(self)
        dialog_vbox.addWidget(tabs)
        dialog_vbox.addLayout(Buttons(CloseButton(self)))

        # Update information
        invoke_client(None)
コード例 #10
0
ファイル: qt.py プロジェクト: tiakansara/EXOS-Electrum
    def __init__(self, window, plugin, keystore, device_id):
        title = _("{} Settings").format(plugin.device)
        super(CKCCSettingsDialog, self).__init__(window, title)
        self.setMaximumWidth(540)

        devmgr = plugin.device_manager()
        config = devmgr.config
        handler = keystore.handler
        self.thread = thread = keystore.thread

        def connect_and_doit():
            client = devmgr.client_by_id(device_id)
            if not client:
                raise RuntimeError("Device not connected")
            return client

        body = QWidget()
        body_layout = QVBoxLayout(body)
        grid = QGridLayout()
        grid.setColumnStretch(2, 1)

        # see <http://doc.qt.io/archives/qt-4.8/richtext-html-subset.html>
        title = QLabel('''<center>
<span style="font-size: x-large">Coldcard Wallet</span>
<br><span style="font-size: medium">from Coinkite Inc.</span>
<br><a href="https://coldcardwallet.com">coldcardwallet.com</a>''')
        title.setTextInteractionFlags(Qt.LinksAccessibleByMouse)

        grid.addWidget(title, 0, 0, 1, 2, Qt.AlignHCenter)
        y = 3

        rows = [
            ('fw_version', _("Firmware Version")),
            ('fw_built', _("Build Date")),
            ('bl_version', _("Bootloader")),
            ('xfp', _("Master Fingerprint")),
            ('serial', _("USB Serial")),
        ]
        for row_num, (member_name, label) in enumerate(rows):
            widget = QLabel('<tt>000000000000')
            widget.setTextInteractionFlags(Qt.TextSelectableByMouse
                                           | Qt.TextSelectableByKeyboard)

            grid.addWidget(QLabel(label), y, 0, 1, 1, Qt.AlignRight)
            grid.addWidget(widget, y, 1, 1, 1, Qt.AlignLeft)
            setattr(self, member_name, widget)
            y += 1
        body_layout.addLayout(grid)

        upg_btn = QPushButton('Upgrade')

        #upg_btn.setDefault(False)
        def _start_upgrade():
            thread.add(connect_and_doit, on_success=self.start_upgrade)

        upg_btn.clicked.connect(_start_upgrade)

        y += 3
        grid.addWidget(upg_btn, y, 0)
        grid.addWidget(CloseButton(self), y, 1)

        dialog_vbox = QVBoxLayout(self)
        dialog_vbox.addWidget(body)

        # Fetch values and show them
        thread.add(connect_and_doit, on_success=self.show_values)