textual_app_with_dark_mode_toggle_keybinding.py

1from textual.app import App, ComposeResult
2from textual.widgets import Header, Footer
3
4
5class SimpleApp(App):
6    """A Textual app to manage stopwatches."""
7
8    BINDINGS = [("d", "toggle_dark", "Toggle dark mode")]
9
10    def compose(self) -> ComposeResult:
11        """Create child widgets for the app."""
12        yield Header()
13        yield Footer()
14
15    def action_toggle_dark(self) -> None:
16        """An action to toggle dark mode."""
17        self.dark = not self.dark
18
19
20if __name__ == "__main__":
21    app = SimpleApp()
22    app.run()