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# This file is part of the Frescobaldi project, http://www.frescobaldi.org/
#
# Copyright (c) 2008 - 2014 by Wilbert Berendsen
#
# 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 2
# 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, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
# See http://www.gnu.org/licenses/ for more information.
"""
Network-related utility functions for LilyPond Documentation.
"""
from PyQt5.QtCore import QSettings
from PyQt5.QtNetwork import QNetworkReply, QNetworkRequest
import app
import po
import networkaccessmanager
def accessmanager():
"""Returns a global NetworkAccessManager."""
global _accessmanager
try:
_accessmanager
except NameError:
_accessmanager = NetworkAccessManager()
return _accessmanager
def get(url):
"""Downloads a URL, returns a QNetworkReply."""
request = QNetworkRequest(url)
return accessmanager().get(request)
def langs():
"""Returns a list of language codes wished for documentation.
If the list is empty, english (untranslated) is assumed.
If a language code also has a country suffix, a hyphen will be used
as separator (as required per RFC2616, Accept-Language header).
"""
s = QSettings()
langs = []
lang = s.value("documentation/language", "default", str)
if lang == "default":
lang = s.value("language", "", str)
if lang and lang != "C":
langs.append(lang)
langs.extend(po.setup.preferred())
# now fixup the list, remove dups and
# language/country codes in Accept-Language headers must have '-' and not '_'
result = []
def add(item):
if item not in result:
result.append(item)
for l in langs:
# if there is a language/country code, insert also the generic language code
if '_' in l:
add(l.replace('_', '-'))
add(l.split('_')[0])
else:
add(l)
return result
class NetworkAccessManager(networkaccessmanager.NetworkAccessManager):
"""A NetworkAccessManager that maintains some settings from the preferences."""
def __init__(self, parent=None):
super(NetworkAccessManager, self).__init__(parent)
app.settingsChanged.connect(self.readSettings)
self.readSettings()
def readSettings(self):
l = langs()
if 'en' not in l:
l.append('en')
self.headers['Accept-Language'] = ','.join(l)
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