Class LoadingScreen

archinstall/tui/components.py:78–150

class LoadingScreen(BaseScreen[ValueT]):
	CSS = """
	LoadingScreen {
		align: center middle;
		background: transparent;
	}

	.content-container {
		width: 1fr;
		height: 1fr;
		max-height: 100%;

		margin-top: 2;
		margin-bottom: 2;

		background: transparent;
	}

	LoadingIndicator {
		align: center middle;
	}
	"""

	def __init__(
		self,
		timer: int = 3,
		data_callback: Callable[[], Any] | None = None,
		header: str | None = None,
	):
		super().__init__()
		self._timer = timer
		self._header = header
		self._data_callback = data_callback

	async def run(self) -> Result[ValueT]:
		assert TApp.app
		return await TApp.app.show(self)

	@override
	def compose(self) -> ComposeResult:
		with Vertical(classes='content-container'):
			if self._header:
				with Center():
					yield Label(self._header, classes='header', id='loading_header')

			yield Center(LoadingIndicator())

		yield Footer()

	def on_mount(self) -> None:
		_translate_bindings(self._merged_bindings, self._bindings)
		if self._data_callback:
			self._exec_callback()
		else:
			self.set_timer(self._timer, self.action_pop_screen)

		self._set_cursor()