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Basic dynamic textual app
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| from textual.app import App, ComposeResult | |
| from textual.containers import Container | |
| from textual.reactive import reactive | |
| from textual.widgets import Static | |
| class Thing(Static): | |
| def __init__( self, text ) -> None: | |
| self._text = text | |
| super().__init__() | |
| def compose(self) -> ComposeResult: | |
| yield Static(self._text) | |
| class ThingApp(App): | |
| BINDINGS = [ | |
| ("a", "add_thing", "Add Thing"), | |
| ("d", "remove_thing", "Remove Thing") | |
| ] | |
| thing_count = reactive(1) | |
| def compose(self) -> ComposeResult: | |
| yield Container(Thing("thing_1"), id="things") | |
| yield Container(Static("Single thing", id="text")) | |
| def action_add_thing(self) -> None: | |
| self.thing_count += 1 | |
| new_thing = Thing(f"thing_{self.thing_count}") | |
| self.query_one("#things").mount(new_thing) | |
| def watch_thing_count(self, thing_count) -> None: | |
| self.query_one("#text", Static).update(f"{self.thing_count} things") | |
| def action_remove_thing(self) -> None: | |
| things = self.query("Thing") | |
| if len(things) > 0: | |
| things.last().remove() | |
| self.thing_count -= 1 | |
| if __name__ == "__main__": | |
| app = ThingApp() | |
| app.run() |
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