def __init__(self, parent, db):
QObject.__init__(self, parent)
self.internet_connection_failed = False
self._parent = parent
self.no_internet_msg = _(
'Cannot download news as no internet connection '
'is active')
self.no_internet_dialog = d = error_dialog(self._parent,
self.no_internet_msg,
_('No internet connection'),
show_copy_button=False)
d.setModal(False)
self.recipe_model = RecipeModel()
self.db = db
self.lock = QMutex(QMutex.RecursionMode.Recursive)
self.download_queue = set()
self.news_menu = QMenu()
self.news_icon = QIcon(I('news.png'))
self.scheduler_action = QAction(QIcon(I('scheduler.png')),
_('Schedule news download'), self)
self.news_menu.addAction(self.scheduler_action)
self.scheduler_action.triggered[bool].connect(self.show_dialog)
self.cac = QAction(QIcon(I('user_profile.png')),
_('Add or edit a custom news source'), self)
self.cac.triggered[bool].connect(self.customize_feeds)
self.news_menu.addAction(self.cac)
self.news_menu.addSeparator()
self.all_action = self.news_menu.addAction(
QIcon.ic('download-metadata.png'),
_('Download all scheduled news sources'),
self.download_all_scheduled)
self.timer = QTimer(self)
self.timer.start(int(self.INTERVAL * 60 * 1000))
self.timer.timeout.connect(self.check)
self.oldest = gconf['oldest_news']
QTimer.singleShot(5 * 1000, self.oldest_check)
class Scheduler(QObject):
INTERVAL = 1 # minutes
delete_old_news = pyqtSignal(object)
start_recipe_fetch = pyqtSignal(object)
def __init__(self, parent, db):
QObject.__init__(self, parent)
self.internet_connection_failed = False
self._parent = parent
self.no_internet_msg = _(
'Cannot download news as no internet connection '
'is active')
self.no_internet_dialog = d = error_dialog(self._parent,
self.no_internet_msg,
_('No internet connection'),
show_copy_button=False)
d.setModal(False)
self.recipe_model = RecipeModel()
self.db = db
self.lock = QMutex(QMutex.RecursionMode.Recursive)
self.download_queue = set()
self.news_menu = QMenu()
self.news_icon = QIcon(I('news.png'))
self.scheduler_action = QAction(QIcon(I('scheduler.png')),
_('Schedule news download'), self)
self.news_menu.addAction(self.scheduler_action)
self.scheduler_action.triggered[bool].connect(self.show_dialog)
self.cac = QAction(QIcon(I('user_profile.png')),
_('Add or edit a custom news source'), self)
self.cac.triggered[bool].connect(self.customize_feeds)
self.news_menu.addAction(self.cac)
self.news_menu.addSeparator()
self.all_action = self.news_menu.addAction(
_('Download all scheduled news sources'),
self.download_all_scheduled)
self.timer = QTimer(self)
self.timer.start(int(self.INTERVAL * 60 * 1000))
self.timer.timeout.connect(self.check)
self.oldest = gconf['oldest_news']
QTimer.singleShot(5 * 1000, self.oldest_check)
def database_changed(self, db):
self.db = db
def oldest_check(self):
if self.oldest > 0:
delta = timedelta(days=self.oldest)
try:
ids = list(
self.db.tags_older_than(_('News'),
delta,
must_have_authors=['calibre']))
except:
# Happens if library is being switched
ids = []
if ids:
if ids:
self.delete_old_news.emit(ids)
QTimer.singleShot(60 * 60 * 1000, self.oldest_check)
def show_dialog(self, *args):
self.lock.lock()
try:
d = SchedulerDialog(self.recipe_model)
d.download.connect(self.download_clicked)
d.exec_()
gconf['oldest_news'] = self.oldest = d.old_news.value()
d.break_cycles()
finally:
self.lock.unlock()
def customize_feeds(self, *args):
from calibre.gui2.dialogs.custom_recipes import CustomRecipes
d = CustomRecipes(self.recipe_model, self._parent)
try:
d.exec_()
finally:
d.deleteLater()
def do_download(self, urn):
self.lock.lock()
try:
account_info = self.recipe_model.get_account_info(urn)
customize_info = self.recipe_model.get_customize_info(urn)
recipe = self.recipe_model.recipe_from_urn(urn)
un = pw = None
if account_info is not None:
un, pw = account_info
add_title_tag, custom_tags, keep_issues = customize_info
arg = {
'username': un,
'password': pw,
'add_title_tag': add_title_tag,
'custom_tags': custom_tags,
'title': recipe.get('title', ''),
'urn': urn,
'keep_issues': keep_issues
}
self.download_queue.add(urn)
self.start_recipe_fetch.emit(arg)
finally:
self.lock.unlock()
def recipe_downloaded(self, arg):
self.lock.lock()
try:
self.recipe_model.update_last_downloaded(arg['urn'])
self.download_queue.remove(arg['urn'])
finally:
self.lock.unlock()
def recipe_download_failed(self, arg):
self.lock.lock()
try:
self.recipe_model.update_last_downloaded(arg['urn'])
self.download_queue.remove(arg['urn'])
finally:
self.lock.unlock()
def download_clicked(self, urn):
if urn is not None:
return self.download(urn)
for urn in self.recipe_model.scheduled_urns():
if not self.download(urn):
break
def download_all_scheduled(self):
self.download_clicked(None)
def has_internet_connection(self):
if not internet_connected():
if not self.internet_connection_failed:
self.internet_connection_failed = True
if self._parent.is_minimized_to_tray:
self._parent.status_bar.show_message(
self.no_internet_msg, 5000)
elif not self.no_internet_dialog.isVisible():
self.no_internet_dialog.show()
return False
self.internet_connection_failed = False
if self.no_internet_dialog.isVisible():
self.no_internet_dialog.hide()
return True
def download(self, urn):
self.lock.lock()
if not self.has_internet_connection():
return False
doit = urn not in self.download_queue
self.lock.unlock()
if doit:
self.do_download(urn)
return True
def check(self):
recipes = self.recipe_model.get_to_be_downloaded_recipes()
for urn in recipes:
if not self.download(urn):
# No internet connection, we will try again in a minute
break