def _fetch_inventory(self, url):
cache_dir = config.cache_dir()
cache_dir = os.path.join(cache_dir, "help", type(self).__qualname__)
try:
os.makedirs(cache_dir, exist_ok=True)
except OSError:
pass
url = QUrl(self.inventory)
if not url.isLocalFile():
# fetch and cache the inventory file.
manager = QNetworkAccessManager(self)
cache = QNetworkDiskCache()
cache.setCacheDirectory(cache_dir)
manager.setCache(cache)
req = QNetworkRequest(url)
# Follow redirects (for example http -> https)
# If redirects were not followed, the documentation would not be found
try:
req.setAttribute(QNetworkRequest.FollowRedirectsAttribute,
1) # from Qt 5.6
req.setAttribute(
QNetworkRequest.RedirectPolicyAttribute, # from Qt 5.9
QNetworkRequest.NoLessSafeRedirectPolicy)
except AttributeError: # if ran with earlier Qt
pass
self._reply = manager.get(req)
manager.finished.connect(self._on_finished)
else:
with open(url.toLocalFile(), "rb") as f:
self._load_inventory(f)
def __init__(self, parent=None):
QObject.__init__(self, parent)
assert QThread.currentThread() is QApplication.instance().thread()
netmanager = self._NETMANAGER_REF and self._NETMANAGER_REF()
if netmanager is None:
netmanager = QNetworkAccessManager()
cache = QNetworkDiskCache()
cache.setCacheDirectory(
os.path.join(data_dir(), "geo", __name__ + ".GeoMap.Cache"))
netmanager.setCache(cache)
ImageLoader._NETMANAGER_REF = weakref.ref(netmanager)
self._netmanager = netmanager
def _networkAccessManagerInstance(cls):
netmanager = cls._NETMANAGER_REF and cls._NETMANAGER_REF()
settings = QSettings()
settings.beginGroup(__name__)
cache_dir = os.path.join(config.cache_dir(), "help", __name__)
cache_size = settings.value("cache_size_mb", defaultValue=50, type=int)
if netmanager is None:
try:
os.makedirs(cache_dir, exist_ok=True)
except OSError:
pass
netmanager = QNetworkAccessManager()
cache = QNetworkDiskCache()
cache.setCacheDirectory(cache_dir)
cache.setMaximumCacheSize(cache_size * 2**20)
netmanager.setCache(cache)
cls._NETMANAGER_REF = ref(netmanager)
return netmanager
def _fetch_inventory(self, url):
cache_dir = config.cache_dir()
cache_dir = os.path.join(cache_dir, "help", type(self).__qualname__)
try:
os.makedirs(cache_dir)
except OSError:
pass
url = QUrl(self.inventory)
if not url.isLocalFile():
# fetch and cache the inventory file.
manager = QNetworkAccessManager(self)
cache = QNetworkDiskCache()
cache.setCacheDirectory(cache_dir)
manager.setCache(cache)
req = QNetworkRequest(url)
self._reply = manager.get(req)
manager.finished.connect(self._on_finished)
else:
self._load_inventory(open(str(url.toLocalFile()), "rb"))