weboob-devel/weboob/tools/application/qt/qt.py
Laurent Bachelier a6ad7e83ff Use newer form of catching exceptions
autopep8 -i --select=W602
Also some other minor deprecated syntax changes, like "while 1".
I did not commit the less obvious changes.
2013-07-27 15:16:16 +02:00

388 lines
13 KiB
Python

# -*- coding: utf-8 -*-
# Copyright(C) 2010-2011 Romain Bignon
#
# This file is part of weboob.
#
# weboob is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# weboob 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with weboob. If not, see <http://www.gnu.org/licenses/>.
import sys
import logging
import re
from threading import Event
from copy import copy
from PyQt4.QtCore import QTimer, SIGNAL, QObject, QString, QSize, QVariant, QMutex, Qt
from PyQt4.QtGui import QMainWindow, QApplication, QStyledItemDelegate, \
QStyleOptionViewItemV4, QTextDocument, QStyle, \
QAbstractTextDocumentLayout, QPalette, QMessageBox, \
QSpinBox, QLineEdit, QComboBox, QCheckBox, QInputDialog
from weboob.core.ouiboube import Weboob, VersionsMismatchError
from weboob.core.scheduler import IScheduler
from weboob.core.repositories import ModuleInstallError
from weboob.tools.config.iconfig import ConfigError
from weboob.tools.browser import BrowserUnavailable, BrowserIncorrectPassword, BrowserForbidden
from weboob.tools.value import ValueInt, ValueBool, ValueBackendPassword
from weboob.tools.misc import to_unicode
from weboob.capabilities import UserError
from ..base import BaseApplication
__all__ = ['QtApplication', 'QtMainWindow', 'QtDo', 'HTMLDelegate']
class QtScheduler(IScheduler):
def __init__(self, app):
self.app = app
self.count = 0
self.timers = {}
def schedule(self, interval, function, *args):
timer = QTimer()
timer.setInterval(interval * 1000)
timer.setSingleShot(True)
count = self.count
self.count += 1
timer.start()
self.app.connect(timer, SIGNAL("timeout()"), lambda: self.timeout(count, None, function, *args))
self.timers[count] = timer
def repeat(self, interval, function, *args):
timer = QTimer()
timer.setSingleShot(False)
count = self.count
self.count += 1
timer.start(0)
self.app.connect(timer, SIGNAL("timeout()"), lambda: self.timeout(count, interval, function, *args))
self.timers[count] = timer
def timeout(self, _id, interval, function, *args):
function(*args)
if interval is None:
self.timers.pop(_id)
else:
self.timers[_id].setInterval(interval * 1000)
def want_stop(self):
self.app.quit()
def run(self):
self.app.exec_()
class QCallbacksManager(QObject):
class Request(object):
def __init__(self):
self.event = Event()
self.answer = None
def __call__(self):
raise NotImplementedError()
class LoginRequest(Request):
def __init__(self, backend_name, value):
QCallbacksManager.Request.__init__(self)
self.backend_name = backend_name
self.value = value
def __call__(self):
password, ok = QInputDialog.getText(None,
'%s request' % self.value.label,
'Please enter %s for %s' % (self.value.label,
self.backend_name),
QLineEdit.Password)
return password
def __init__(self, weboob, parent=None):
QObject.__init__(self, parent)
self.weboob = weboob
self.weboob.callbacks['login'] = self.callback(self.LoginRequest)
self.mutex = QMutex()
self.requests = []
self.connect(self, SIGNAL('new_request'), self.do_request)
def callback(self, klass):
def cb(*args, **kwargs):
return self.add_request(klass(*args, **kwargs))
return cb
def do_request(self):
self.mutex.lock()
request = self.requests.pop()
request.answer = request()
request.event.set()
self.mutex.unlock()
def add_request(self, request):
self.mutex.lock()
self.requests.append(request)
self.mutex.unlock()
self.emit(SIGNAL('new_request'))
request.event.wait()
return request.answer
class QtApplication(QApplication, BaseApplication):
def __init__(self):
QApplication.__init__(self, sys.argv)
self.setApplicationName(self.APPNAME)
BaseApplication.__init__(self)
self.cbmanager = QCallbacksManager(self.weboob, self)
def create_weboob(self):
return Weboob(scheduler=QtScheduler(self))
def load_backends(self, *args, **kwargs):
while True:
try:
return BaseApplication.load_backends(self, *args, **kwargs)
except VersionsMismatchError as e:
msg = 'Versions of modules mismatch with version of weboob.'
except ConfigError as e:
msg = unicode(e)
res = QMessageBox.question(None, 'Configuration error', u'%s\n\nDo you want to update repositories?' % msg, QMessageBox.Yes|QMessageBox.No)
if res == QMessageBox.No:
raise e
# Do not import it globally, it causes circular imports
from .backendcfg import ProgressDialog
pd = ProgressDialog('Update of repositories', "Cancel", 0, 100)
pd.setWindowModality(Qt.WindowModal)
try:
self.weboob.update(pd)
except ModuleInstallError as err:
QMessageBox.critical(None, self.tr('Update error'),
unicode(self.tr('Unable to update repositories: %s' % err)),
QMessageBox.Ok)
pd.setValue(100)
QMessageBox.information(None, self.tr('Update of repositories'),
self.tr('Repositories updated!'), QMessageBox.Ok)
class QtMainWindow(QMainWindow):
def __init__(self, parent=None):
QMainWindow.__init__(self, parent)
class QtDo(QObject):
def __init__(self, weboob, cb, eb=None):
QObject.__init__(self)
if not eb:
eb = self.default_eb
self.weboob = weboob
self.process = None
self.cb = cb
self.eb = eb
self.connect(self, SIGNAL('cb'), self.local_cb)
self.connect(self, SIGNAL('eb'), self.local_eb)
def do(self, *args, **kwargs):
self.process = self.weboob.do(*args, **kwargs)
self.process.callback_thread(self.thread_cb, self.thread_eb)
def default_eb(self, backend, error, backtrace):
msg = unicode(error)
if isinstance(error, BrowserIncorrectPassword):
if not msg:
msg = 'Invalid login/password.'
elif isinstance(error, BrowserUnavailable):
if not msg:
msg = 'Website is unavailable.'
elif isinstance(error, BrowserForbidden):
if not msg:
msg = 'This action is forbidden.'
elif isinstance(error, NotImplementedError):
msg = u'This feature is not supported by this backend.\n\n' \
u'To help the maintainer of this backend implement this feature, please contact: %s <%s>' % (backend.MAINTAINER, backend.EMAIL)
elif isinstance(error, UserError):
if not msg:
msg = type(error).__name__
elif logging.root.level == logging.DEBUG:
msg += u'<br />'
ul_opened = False
for line in backtrace.split('\n'):
m = re.match(' File (.*)', line)
if m:
if not ul_opened:
msg += u'<ul>'
ul_opened = True
else:
msg += u'</li>'
msg += u'<li><b>%s</b>' % m.group(1)
else:
msg += u'<br />%s' % to_unicode(line)
if ul_opened:
msg += u'</li></ul>'
print >>sys.stderr, error
print >>sys.stderr, backtrace
QMessageBox.critical(None, unicode(self.tr('Error with backend %s')) % backend.name,
msg, QMessageBox.Ok)
def local_cb(self, backend, data):
self.cb(backend, data)
if not backend:
self.disconnect(self, SIGNAL('cb'), self.local_cb)
self.disconnect(self, SIGNAL('eb'), self.local_eb)
self.process = None
def local_eb(self, backend, error, backtrace):
self.eb(backend, error, backtrace)
self.disconnect(self, SIGNAL('cb'), self.local_cb)
self.disconnect(self, SIGNAL('eb'), self.local_eb)
self.process = None
def thread_cb(self, backend, data):
self.emit(SIGNAL('cb'), backend, data)
def thread_eb(self, backend, error, backtrace):
self.emit(SIGNAL('eb'), backend, error, backtrace)
class HTMLDelegate(QStyledItemDelegate):
def paint(self, painter, option, index):
optionV4 = QStyleOptionViewItemV4(option)
self.initStyleOption(optionV4, index)
style = optionV4.widget.style() if optionV4.widget else QApplication.style()
doc = QTextDocument()
doc.setHtml(optionV4.text)
# painting item without text
optionV4.text = QString()
style.drawControl(QStyle.CE_ItemViewItem, optionV4, painter)
ctx = QAbstractTextDocumentLayout.PaintContext()
# Hilight text if item is selected
if optionV4.state & QStyle.State_Selected:
ctx.palette.setColor(QPalette.Text, optionV4.palette.color(QPalette.Active, QPalette.HighlightedText))
textRect = style.subElementRect(QStyle.SE_ItemViewItemText, optionV4)
painter.save()
painter.translate(textRect.topLeft())
painter.setClipRect(textRect.translated(-textRect.topLeft()))
doc.documentLayout().draw(painter, ctx)
painter.restore()
def sizeHint(self, option, index):
optionV4 = QStyleOptionViewItemV4(option)
self.initStyleOption(optionV4, index)
doc = QTextDocument()
doc.setHtml(optionV4.text)
doc.setTextWidth(optionV4.rect.width())
return QSize(doc.idealWidth(), max(doc.size().height(), optionV4.decorationSize.height()))
class _QtValueStr(QLineEdit):
def __init__(self, value):
QLineEdit.__init__(self)
self._value = value
if value.default:
self.setText(unicode(value.default))
if value.masked:
self.setEchoMode(self.Password)
def set_value(self, value):
self._value = value
self.setText(self._value.get())
def get_value(self):
self._value.set(unicode(self.text()))
return self._value
class _QtValueBackendPassword(_QtValueStr):
def get_value(self):
self._value._domain = None
return _QtValueStr.get_value(self)
class _QtValueBool(QCheckBox):
def __init__(self, value):
QCheckBox.__init__(self)
self._value = value
if value.default:
self.setChecked(True)
def set_value(self, value):
self._value = value
self.setChecked(self._value.get())
def get_value(self):
self._value.set(self.isChecked())
return self._value
class _QtValueInt(QSpinBox):
def __init__(self, value):
QSpinBox.__init__(self)
self._value = value
if value.default:
self.setValue(int(value.default))
def set_value(self, value):
self._value = value
self.setValue(self._value.get())
def get_value(self):
self._value.set(self.getValue())
return self._value
class _QtValueChoices(QComboBox):
def __init__(self, value):
QComboBox.__init__(self)
self._value = value
for k, l in value.choices.iteritems():
self.addItem(l, QVariant(k))
if value.default == k:
self.setCurrentIndex(self.count()-1)
def set_value(self, value):
self._value = value
for i in xrange(self.count()):
if unicode(self.itemData(i).toString()) == self._value.get():
self.setCurrentIndex(i)
return
def get_value(self):
self._value.set(unicode(self.itemData(self.currentIndex()).toString()))
return self._value
def QtValue(value):
if isinstance(value, ValueBool):
klass = _QtValueBool
elif isinstance(value, ValueInt):
klass = _QtValueInt
elif isinstance(value, ValueBackendPassword):
klass = _QtValueBackendPassword
elif value.choices is not None:
klass = _QtValueChoices
else:
klass = _QtValueStr
return klass(copy(value))