| from textual.app import App, ComposeResult | |
| from textual.reactive import reactive | |
| from textual.widget import Widget | |
| from textual.widgets import Input | |
| class Name(Widget): | |
| """Generates a greeting.""" | |
| who = reactive("name", layout=True) # (1)! | |
| def render(self) -> str: | |
| return f"Hello, {self.who}!" | |
| class WatchApp(App): | |
| CSS_PATH = "refresh02.css" | |
| def compose(self) -> ComposeResult: | |
| yield Input(placeholder="Enter your name") | |
| yield Name() | |
| def on_input_changed(self, event: Input.Changed) -> None: | |
| self.query_one(Name).who = event.value | |
| if __name__ == "__main__": | |
| app = WatchApp() | |
| app.run() | |