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from textual.app import App, ComposeResult
from textual.containers import Grid
from textual.screen import ModalScreen
from textual.widgets import Button, Footer, Header, Label
TEXT = """I must not fear.
Fear is the mind-killer.
Fear is the little-death that brings total obliteration.
I will face my fear.
I will permit it to pass over me and through me.
And when it has gone past, I will turn the inner eye to see its path.
Where the fear has gone there will be nothing. Only I will remain."""
class QuitScreen(ModalScreen):
"""Screen with a dialog to quit."""
def compose(self) -> ComposeResult:
yield Grid(
Label("Are you sure you want to quit?", id="question"),
Button("Quit", variant="error", id="quit"),
Button("Cancel", variant="primary", id="cancel"),
id="dialog",
)
def on_button_pressed(self, event: Button.Pressed) -> None:
if event.button.id == "quit":
self.app.exit()
else:
self.app.pop_screen()
class ModalApp(App):
"""An app with a modal dialog."""
CSS_PATH = "modal01.tcss"
BINDINGS = [("q", "request_quit", "Quit")]
def compose(self) -> ComposeResult:
yield Header()
yield Label(TEXT * 8)
yield Footer()
def action_request_quit(self) -> None:
"""Action to display the quit dialog."""
self.push_screen(QuitScreen())
if __name__ == "__main__":
app = ModalApp()
app.run()
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