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92 lines
3.1 KiB
92 lines
3.1 KiB
9 years ago
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from unicodedata import normalize
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import threading
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from PyQt4.Qt import QVBoxLayout, QLabel, SIGNAL
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import PyQt4.QtCore as QtCore
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from electrum_gui.qt.main_window import ElectrumWindow
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from electrum_gui.qt.installwizard import InstallWizard
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from electrum_gui.qt.password_dialog import PasswordDialog
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from electrum_gui.qt.util import *
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from electrum.i18n import _
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class QtHandler:
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'''An interface between the GUI (here, QT) and the device handling
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logic for handling I/O. This is a generic implementation of the
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Trezor protocol; derived classes can customize it.'''
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# Derived classes must provide:
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# device a string, e.g. "Trezor"
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# pin_matrix_widget_class
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def __init__(self, win):
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win.connect(win, SIGNAL('message_done'), self.dialog_stop)
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win.connect(win, SIGNAL('message_dialog'), self.message_dialog)
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win.connect(win, SIGNAL('pin_dialog'), self.pin_dialog)
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win.connect(win, SIGNAL('passphrase_dialog'), self.passphrase_dialog)
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self.win = win
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self.done = threading.Event()
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self.dialog = None
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def stop(self):
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self.win.emit(SIGNAL('message_done'))
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def show_message(self, msg):
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self.win.emit(SIGNAL('message_dialog'), msg)
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def get_pin(self, msg):
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self.done.clear()
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self.win.emit(SIGNAL('pin_dialog'), msg)
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self.done.wait()
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return self.response
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def get_passphrase(self, msg):
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self.done.clear()
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self.win.emit(SIGNAL('passphrase_dialog'), msg)
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self.done.wait()
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return self.passphrase
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def pin_dialog(self, msg):
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d = WindowModalDialog(self.win, _("Enter PIN"))
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matrix = self.pin_matrix_widget_class()
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vbox = QVBoxLayout()
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vbox.addWidget(QLabel(msg))
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vbox.addWidget(matrix)
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vbox.addLayout(Buttons(CancelButton(d), OkButton(d)))
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d.setLayout(vbox)
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if not d.exec_():
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self.response = None # FIXME: this is lost?
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self.response = str(matrix.get_value())
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self.done.set()
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def passphrase_dialog(self, msg):
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if type(self.win) is ElectrumWindow:
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msg = _("Please enter your %s passphrase") % self.device
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passphrase = self.win.password_dialog(msg)
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else:
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assert type(self.win) is InstallWizard
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d = PasswordDialog(self.win, None, None, msg, False)
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confirmed, p, passphrase = d.run()
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if passphrase is None:
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self.win.show_critical(_("Passphrase request canceled"))
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else:
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passphrase = normalize('NFKD', unicode(passphrase))
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self.passphrase = passphrase
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self.done.set()
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def message_dialog(self, msg):
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# Called more than once during signing, to confirm output and fee
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self.dialog_stop()
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msg = _('Please check your %s Device') % self.device
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self.dialog = WindowModalDialog(self.win, msg)
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l = QLabel(msg)
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vbox = QVBoxLayout(self.dialog)
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vbox.addWidget(l)
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self.dialog.show()
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def dialog_stop(self):
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if self.dialog:
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self.dialog.hide()
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self.dialog = None
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