106 lines
2.9 KiB
Python
106 lines
2.9 KiB
Python
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from __future__ import annotations
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from textual.app import App
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from textual.binding import Binding
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from textual.demo.game import GameScreen
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from textual.demo.home import HomeScreen
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from textual.demo.projects import ProjectsScreen
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from textual.demo.widgets import WidgetsScreen
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class DemoApp(App):
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"""The demo app defines the modes and sets a few bindings."""
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CSS = """
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.column {
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align: center top;
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&>*{ max-width: 100; }
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}
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Screen .-maximized {
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margin: 1 2;
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max-width: 100%;
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&.column { margin: 1 2; padding: 1 2; }
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&.column > * {
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max-width: 100%;
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}
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}
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"""
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MODES = {
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"game": GameScreen,
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"home": HomeScreen,
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"projects": ProjectsScreen,
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"widgets": WidgetsScreen,
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}
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DEFAULT_MODE = "home"
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BINDINGS = [
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Binding(
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"h",
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"app.switch_mode('home')",
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"Home",
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tooltip="Show the home screen",
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),
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Binding(
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"g",
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"app.switch_mode('game')",
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"Game",
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tooltip="Unwind with a Textual game",
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),
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Binding(
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"p",
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"app.switch_mode('projects')",
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"Projects",
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tooltip="A selection of Textual projects",
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),
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Binding(
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"w",
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"app.switch_mode('widgets')",
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"Widgets",
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tooltip="Test the builtin widgets",
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),
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Binding(
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"ctrl+s",
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"app.screenshot",
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"Screenshot",
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tooltip="Save an SVG 'screenshot' of the current screen",
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),
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Binding(
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"ctrl+a",
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"app.maximize",
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"Maximize",
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tooltip="Maximize the focused widget (if possible)",
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),
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]
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def action_maximize(self) -> None:
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if self.screen.is_maximized:
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return
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if self.screen.focused is None:
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self.notify(
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"Nothing to be maximized (try pressing [b]tab[/b])",
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title="Maximize",
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severity="warning",
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)
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else:
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if self.screen.maximize(self.screen.focused):
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self.notify(
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"You are now in the maximized view. Press [b]escape[/b] to return.",
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title="Maximize",
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)
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else:
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self.notify(
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"This widget may not be maximized.",
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title="Maximize",
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severity="warning",
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)
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def check_action(self, action: str, parameters: tuple[object, ...]) -> bool | None:
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"""Disable switching to a mode we are already on."""
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if (
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action == "switch_mode"
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and parameters
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and self.current_mode == parameters[0]
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):
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return None
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return True
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