| from textual.app import App, ComposeResult | |
| from textual.widgets import Header, Footer | |
| class StopwatchApp(App): | |
| """A Textual app to manage stopwatches.""" | |
| BINDINGS = [("d", "toggle_dark", "Toggle dark mode")] | |
| def compose(self) -> ComposeResult: | |
| """Create child widgets for the app.""" | |
| yield Header() | |
| yield Footer() | |
| def action_toggle_dark(self) -> None: | |
| """An action to toggle dark mode.""" | |
| self.dark = not self.dark | |
| if __name__ == "__main__": | |
| app = StopwatchApp() | |
| app.run() | |