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from gi.repository import Gtk, Adw
import inject
from cozy.view_model.app_view_model import AppViewModel
from cozy.view import View
LIBRARY = "main"
EMPTY_STATE = "welcome"
PREPARING_LIBRARY = "import"
BOOK_DETAIL = "book_overview"
class AppView:
_view_model: AppViewModel = inject.attr(AppViewModel)
def __init__(self, builder: Gtk.Builder):
self._builder = builder
self._get_ui_elements()
self._connect_view_model()
self._connect_ui_elements()
self._update_view_model_view(None, None)
def _get_ui_elements(self):
self._main_stack: Gtk.Stack = self._builder.get_object("main_stack")
self._navigation_view: Adw.NavigationView = self._builder.get_object("navigation_view")
def _connect_ui_elements(self):
self._main_stack.connect("notify::visible-child", self._update_view_model_view)
self._navigation_view.connect("notify::visible-page", self._update_view_model_view)
def _connect_view_model(self):
self._view_model.bind_to("view", self._on_view_changed)
def _on_view_changed(self):
view = self._view_model.view
if view == View.EMPTY_STATE:
self._main_stack.set_visible_child_name(EMPTY_STATE)
elif view == View.PREPARING_LIBRARY:
self._main_stack.set_visible_child_name(PREPARING_LIBRARY)
elif view == View.LIBRARY:
self._main_stack.set_visible_child_name(LIBRARY)
def _update_view_model_view(self, *_):
page = self._main_stack.props.visible_child_name
if page == LIBRARY:
if self._navigation_view.props.visible_page.props.tag == BOOK_DETAIL:
self._view_model.view = View.BOOK_DETAIL
else:
self._view_model.view = View.LIBRARY
elif page == EMPTY_STATE:
self._view_model.view = View.EMPTY_STATE
elif page == PREPARING_LIBRARY:
self._view_model.view = View.PREPARING_LIBRARY
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