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# -*- coding: utf-8 -*-
# preferenceswindow.py
# Copyright (C) 2013 LEAP
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
Preferences window
"""
from PySide import QtCore, QtGui
from leap.bitmask.logs.utils import get_logger
from leap.bitmask.gui.ui_preferences import Ui_Preferences
from leap.bitmask.gui.preferences_page import PreferencesPage
from leap.bitmask.gui.preferences_account_page import PreferencesAccountPage
from leap.bitmask.gui.preferences_vpn_page import PreferencesVpnPage
from leap.bitmask.gui.preferences_email_page import PreferencesEmailPage
logger = get_logger()
class PreferencesWindow(QtGui.QDialog):
"""
Window that displays the preferences.
"""
_current_window = None # currently visible preferences window
def __init__(self, parent, app):
"""
:param parent: parent object of the PreferencesWindow.
:parent type: QWidget
:param app: the current App object
:type app: App
"""
QtGui.QDialog.__init__(self, parent)
self.app = app
self.ui = Ui_Preferences()
self.ui.setupUi(self)
self._account_page = None
self._vpn_page = None
self._email_page = None
self._add_icons()
self._set_account(app.current_account())
self._setup_connections()
# only allow a single preferences window at a time.
if PreferencesWindow._current_window is not None:
PreferencesWindow._current_window.close()
PreferencesWindow._current_window = self
def _set_account(self, account):
"""
Initially sets, or resets, the currently viewed account.
The account might not represent an authenticated user, but
just a domain.
"""
self.ui.account_label.setText(account.address)
self._add_pages(account)
self._update_icons(account)
self.ui.pages_widget.setCurrentIndex(0)
self.ui.nav_widget.setCurrentRow(0)
def _add_icons(self):
"""
Adds all the icons for the different configuration categories.
Icons are QListWidgetItems added to the nav_widget on the side
of the preferences window.
A note on sizing of QListWidgetItems
icon_width = list_widget.width - (2 x nav_widget.spacing) - 2
icon_height = 56 seems to look ok
"""
account_item = QtGui.QListWidgetItem(self.ui.nav_widget)
account_item.setIcon(QtGui.QIcon(":/images/black/32/user.png"))
account_item.setText(self.tr("Account"))
account_item.setTextAlignment(
QtCore.Qt.AlignHCenter | QtCore.Qt.AlignVCenter)
account_item.setFlags(
QtCore.Qt.ItemIsSelectable | QtCore.Qt.ItemIsEnabled)
account_item.setSizeHint(QtCore.QSize(98, 56))
self._account_item = account_item
vpn_item = QtGui.QListWidgetItem(self.ui.nav_widget)
vpn_item.setHidden(True)
vpn_item.setIcon(QtGui.QIcon(":/images/black/32/earth.png"))
vpn_item.setText(self.tr("VPN"))
vpn_item.setTextAlignment(
QtCore.Qt.AlignHCenter | QtCore.Qt.AlignVCenter)
vpn_item.setFlags(QtCore.Qt.ItemIsSelectable | QtCore.Qt.ItemIsEnabled)
vpn_item.setSizeHint(QtCore.QSize(98, 56))
self._vpn_item = vpn_item
email_item = QtGui.QListWidgetItem(self.ui.nav_widget)
email_item.setHidden(True)
email_item.setIcon(QtGui.QIcon(":/images/black/32/email.png"))
email_item.setText(self.tr("Email"))
email_item.setTextAlignment(
QtCore.Qt.AlignHCenter | QtCore.Qt.AlignVCenter)
email_item.setFlags(
QtCore.Qt.ItemIsSelectable | QtCore.Qt.ItemIsEnabled)
email_item.setSizeHint(QtCore.QSize(98, 56))
self._email_item = email_item
def _add_pages(self, account):
"""
Adds the pages for the different configuration categories.
"""
self._remove_pages() # in case different account was loaded.
# load placeholder widgets if the page should not be loaded.
# the order of the pages is important, and must match the order
# of the nav_widget icons.
self._account_page = PreferencesAccountPage(self, account, self.app)
if account.has_eip():
self._vpn_page = PreferencesVpnPage(self, account, self.app)
else:
self._vpn_page = PreferencesPage(self)
if account.has_email():
self._email_page = PreferencesEmailPage(self, account, self.app)
else:
self._email_page = PreferencesPage(self)
self.ui.pages_widget.addWidget(self._account_page)
self.ui.pages_widget.addWidget(self._vpn_page)
self.ui.pages_widget.addWidget(self._email_page)
def _remove_pages(self):
# deleteLater does not seem to cascade to items in stackLayout
# (even with QtCore.Qt.WA_DeleteOnClose attribute).
# so, here we call deleteLater() explicitly.
if self._account_page is not None:
self.ui.pages_widget.removeWidget(self._account_page)
self._account_page.teardown_connections()
self._account_page.deleteLater()
if self._vpn_page is not None:
self.ui.pages_widget.removeWidget(self._vpn_page)
self._vpn_page.teardown_connections()
self._vpn_page.deleteLater()
if self._email_page is not None:
self.ui.pages_widget.removeWidget(self._email_page)
self._email_page.teardown_connections()
self._email_page.deleteLater()
def _setup_connections(self):
"""
setup signal connections
"""
self.ui.nav_widget.currentItemChanged.connect(self._change_page)
self.ui.close_button.clicked.connect(self.close)
self.app.service_selection_changed.connect(self._update_icons)
sig = self.app.signaler
sig.srp_auth_ok.connect(self._login_status_changed)
sig.srp_logout_ok.connect(self._login_status_changed)
sig.srp_status_logged_in.connect(self._update_account)
sig.srp_status_not_logged_in.connect(self._update_account)
def _teardown_connections(self):
"""
clean up signal connections
"""
self.ui.nav_widget.currentItemChanged.disconnect(self._change_page)
self.ui.close_button.clicked.disconnect(self.close)
self.app.service_selection_changed.disconnect(self._update_icons)
sig = self.app.signaler
sig.srp_auth_ok.disconnect(self._login_status_changed)
sig.srp_logout_ok.disconnect(self._login_status_changed)
sig.srp_status_logged_in.disconnect(self._update_account)
sig.srp_status_not_logged_in.disconnect(self._update_account)
#
# Slots
#
def closeEvent(self, e):
"""
TRIGGERS:
self.ui.close_button.clicked
(since self.close() will trigger closeEvent)
whenever the window is closed
Close this dialog and destroy it.
"""
PreferencesWindow._current_window = None
self._teardown_connections();
self._remove_pages();
self.deleteLater()
def _change_page(self, current, previous):
"""
TRIGGERS:
self.ui.nav_widget.currentItemChanged
Changes what page is displayed.
:param current: the currently selected item (might be None?)
:type current: PySide.QtGui.QListWidgetItem
:param previous: the previously selected item (might be None)
:type previous: PySide.QtGui.QListWidgetItem
"""
if not current:
current = previous
self.ui.pages_widget.setCurrentIndex(self.ui.nav_widget.row(current))
def _update_icons(self, account):
"""
TRIGGERS:
self.app.service_selection_changed
Change which icons are visible.
"""
self._vpn_item.setHidden(not account.has_eip())
self._email_item.setHidden(not account.has_email())
def _login_status_changed(self):
"""
Triggered by signal srp_auth_ok, srp_logout_ok
"""
self.app.backend.user_get_logged_in_status()
def _update_account(self):
"""
Triggered by get srp_status_logged_in, srp_status_not_logged_in
"""
self._set_account(self.app.current_account())
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