156 lines
5.5 KiB
Python
156 lines
5.5 KiB
Python
#!/usr/bin/env python2
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# -*- mode: python -*-
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#
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# Electrum - lightweight Bitcoin client
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# Copyright (C) 2016 The Electrum developers
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#
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# Permission is hereby granted, free of charge, to any person
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# obtaining a copy of this software and associated documentation files
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# (the "Software"), to deal in the Software without restriction,
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# including without limitation the rights to use, copy, modify, merge,
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# publish, distribute, sublicense, and/or sell copies of the Software,
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# and to permit persons to whom the Software is furnished to do so,
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# subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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import threading
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from PyQt4.Qt import QVBoxLayout, QLabel, SIGNAL
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from electrum_gui.qt.password_dialog import PasswordDialog, PW_PASSPHRASE
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from electrum_gui.qt.util import *
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from electrum.i18n import _
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from electrum.util import PrintError
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# The trickiest thing about this handler was getting windows properly
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# parented on MacOSX.
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class QtHandlerBase(QObject, PrintError):
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'''An interface between the GUI (here, QT) and the device handling
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logic for handling I/O.'''
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qcSig = pyqtSignal(object, object)
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ynSig = pyqtSignal(object)
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def __init__(self, win, device):
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super(QtHandlerBase, self).__init__()
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win.connect(win, SIGNAL('clear_dialog'), self.clear_dialog)
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win.connect(win, SIGNAL('error_dialog'), self.error_dialog)
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win.connect(win, SIGNAL('message_dialog'), self.message_dialog)
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win.connect(win, SIGNAL('passphrase_dialog'), self.passphrase_dialog)
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win.connect(win, SIGNAL('word_dialog'), self.word_dialog)
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self.qcSig.connect(self.win_query_choice)
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self.ynSig.connect(self.win_yes_no_question)
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self.win = win
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self.device = device
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self.dialog = None
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self.done = threading.Event()
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def top_level_window(self):
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return self.win.top_level_window()
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def query_choice(self, msg, labels):
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self.done.clear()
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self.qcSig.emit(msg, labels)
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self.done.wait()
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return self.choice
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def yes_no_question(self, msg):
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self.done.clear()
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self.ynSig.emit(msg)
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self.done.wait()
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return self.ok
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def show_message(self, msg, on_cancel=None):
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self.win.emit(SIGNAL('message_dialog'), msg, on_cancel)
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def show_error(self, msg):
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self.win.emit(SIGNAL('error_dialog'), msg)
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def finished(self):
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self.win.emit(SIGNAL('clear_dialog'))
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def get_word(self, msg):
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self.done.clear()
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self.win.emit(SIGNAL('word_dialog'), msg)
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self.done.wait()
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return self.word
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def get_passphrase(self, msg, confirm):
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self.done.clear()
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self.win.emit(SIGNAL('passphrase_dialog'), msg, confirm)
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self.done.wait()
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return self.passphrase
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def passphrase_dialog(self, msg, confirm):
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# If confirm is true, require the user to enter the passphrase twice
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parent = self.top_level_window()
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if confirm:
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d = PasswordDialog(parent, None, msg, PW_PASSPHRASE)
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confirmed, p, passphrase = d.run()
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else:
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d = WindowModalDialog(parent, _("Enter Passphrase"))
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pw = QLineEdit()
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pw.setEchoMode(2)
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pw.setMinimumWidth(200)
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vbox = QVBoxLayout()
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vbox.addWidget(WWLabel(msg))
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vbox.addWidget(pw)
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vbox.addLayout(Buttons(CancelButton(d), OkButton(d)))
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d.setLayout(vbox)
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passphrase = unicode(pw.text()) if d.exec_() else None
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self.passphrase = passphrase
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self.done.set()
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def word_dialog(self, msg):
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dialog = WindowModalDialog(self.top_level_window(), "")
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hbox = QHBoxLayout(dialog)
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hbox.addWidget(QLabel(msg))
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text = QLineEdit()
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text.setMaximumWidth(100)
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text.returnPressed.connect(dialog.accept)
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hbox.addWidget(text)
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hbox.addStretch(1)
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dialog.exec_() # Firmware cannot handle cancellation
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self.word = unicode(text.text())
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self.done.set()
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def message_dialog(self, msg, on_cancel):
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# Called more than once during signing, to confirm output and fee
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self.clear_dialog()
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title = _('Please check your %s device') % self.device
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self.dialog = dialog = WindowModalDialog(self.top_level_window(), title)
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l = QLabel(msg)
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vbox = QVBoxLayout(dialog)
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vbox.addWidget(l)
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if on_cancel:
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dialog.rejected.connect(on_cancel)
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vbox.addLayout(Buttons(CancelButton(dialog)))
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dialog.show()
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def error_dialog(self, msg):
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self.win.show_error(msg, parent=self.top_level_window())
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def clear_dialog(self):
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if self.dialog:
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self.dialog.accept()
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self.dialog = None
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def win_query_choice(self, msg, labels):
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self.choice = self.win.query_choice(msg, labels)
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self.done.set()
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def win_yes_no_question(self, msg):
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self.ok = self.top_level_window().question(msg)
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self.done.set()
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