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from typing import Optional
from gi.repository import GObject, Gtk, Adw
from gfeeds.feeds_manager import FeedsManager
from gfeeds.confManager import ConfManager
@Gtk.Template(resource_path='/org/gabmus/gfeeds/ui/empty_state.ui')
class EmptyState(Adw.Bin):
__gtype_name__ = 'EmptyState'
def __init__(self):
super().__init__()
class StackWithEmptyState(Gtk.Stack):
__gtype_name__ = 'StackWithEmptyState'
def __init__(self, main_widget: Optional[Gtk.Widget] = None):
super().__init__(
vexpand=True, hexpand=True,
transition_type=Gtk.StackTransitionType.CROSSFADE
)
self.__main_widget = main_widget
self.feedman = FeedsManager()
self.confman = ConfManager()
self.empty_state = EmptyState()
if self.main_widget is not None:
self.add_named(self.main_widget, 'main_widget')
self.add_named(self.empty_state, 'empty_state')
self.set_visible_child(
self.main_widget if len(self.confman.nconf.feeds) > 0
and self.main_widget is not None
else self.empty_state
)
self.feedman.feed_store.connect(
'items-changed',
self.on_feed_store_items_changed
)
@GObject.Property(type=Gtk.Widget, default=None, nick='main-widget')
def main_widget(self) -> Optional[Gtk.Widget]:
return self.__main_widget
@main_widget.setter
def main_widget(self, w: Gtk.Widget):
self.__main_widget = w
self.add_named(self.__main_widget, 'main_widget')
def on_feed_store_items_changed(self, *args):
if len(self.feedman.feed_store) == 0:
self.set_visible_child(self.empty_state)
else:
self.set_visible_child(self.main_widget)
def on_feeds_append(self, *args):
self.set_visible_child(self.main_widget)
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