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from __future__ import annotations
from textual.app import App, ComposeResult
from textual.widgets import RadioButton, RadioSet
class RadioSetApp(App[None]):
def __init__(self):
super().__init__()
self.events_received = []
def compose(self) -> ComposeResult:
with RadioSet(id="from_buttons"):
yield RadioButton(id="clickme")
yield RadioButton()
yield RadioButton(value=True)
yield RadioSet("One", "True", "Three", id="from_strings")
def on_radio_set_changed(self, event: RadioSet.Changed) -> None:
assert event.radio_set is event.control
self.events_received.append(
(
event.radio_set.id,
event.index,
[button.value for button in event.radio_set.query(RadioButton)],
)
)
async def test_radio_sets_initial_state():
"""The initial states of the radio sets should be as we specified."""
async with RadioSetApp().run_test() as pilot:
assert pilot.app.query_one("#from_buttons", RadioSet).pressed_index == 2
assert pilot.app.query_one("#from_buttons", RadioSet).pressed_button is not None
assert pilot.app.query_one("#from_strings", RadioSet).pressed_index == -1
assert pilot.app.query_one("#from_strings", RadioSet).pressed_button is None
assert pilot.app.events_received == []
async def test_click_sets_focus():
"""Clicking within a radio set should set focus."""
async with RadioSetApp().run_test() as pilot:
pilot.app.set_focus(None)
assert pilot.app.screen.focused is None
await pilot.click("#clickme")
assert pilot.app.screen.focused == pilot.app.query_one("#from_buttons")
async def test_radio_sets_toggle():
"""Test the status of the radio sets after they've been toggled."""
async with RadioSetApp().run_test() as pilot:
pilot.app.query_one("#from_buttons", RadioSet)._nodes[0].toggle()
pilot.app.query_one("#from_strings", RadioSet)._nodes[2].toggle()
await pilot.pause()
assert pilot.app.query_one("#from_buttons", RadioSet).pressed_index == 0
assert pilot.app.query_one("#from_buttons", RadioSet).pressed_button is not None
assert pilot.app.query_one("#from_strings", RadioSet).pressed_index == 2
assert pilot.app.query_one("#from_strings", RadioSet).pressed_button is not None
assert pilot.app.events_received == [
("from_buttons", 0, [True, False, False]),
("from_strings", 2, [False, False, True]),
]
async def test_radioset_same_button_mash():
"""Mashing the same button should have no effect."""
async with RadioSetApp().run_test() as pilot:
assert pilot.app.query_one("#from_buttons", RadioSet).pressed_index == 2
pilot.app.query_one("#from_buttons", RadioSet)._nodes[2].toggle()
assert pilot.app.query_one("#from_buttons", RadioSet).pressed_index == 2
assert pilot.app.events_received == []
async def test_radioset_inner_navigation():
"""Using the cursor keys should navigate between buttons in a set."""
async with RadioSetApp().run_test() as pilot:
for key, landing in (
("down", 1),
("up", 0),
("right", 1),
("left", 0),
("up", 2),
("down", 0),
):
await pilot.press(key, "enter")
assert (
pilot.app.query_one("#from_buttons", RadioSet).pressed_button
== pilot.app.query_one("#from_buttons").children[landing]
)
async with RadioSetApp().run_test() as pilot:
assert pilot.app.screen.focused is pilot.app.screen.query_one("#from_buttons")
await pilot.press("tab")
assert pilot.app.screen.focused is pilot.app.screen.query_one("#from_strings")
assert pilot.app.query_one("#from_strings", RadioSet)._selected == 0
await pilot.press("down")
assert pilot.app.query_one("#from_strings", RadioSet)._selected == 1
async def test_radioset_inner_navigation_post_build():
class EmptyRadioSetApp(App[None]):
def compose(self) -> ComposeResult:
yield RadioSet()
def on_mount(self) -> None:
# This isn't encouraged; but neither is it currently prohibited;
# so let's test.
for n in range(5):
self.query_one(RadioSet).mount(RadioButton(id=f"rb{n}"))
async with EmptyRadioSetApp().run_test() as pilot:
assert pilot.app.query_one(RadioSet)._selected is None
await pilot.press("up")
assert pilot.app.query_one(RadioSet)._selected == 4
async def test_radioset_breakout_navigation():
"""Shift/Tabbing while in a radioset should move to the previous/next focsuable after the set itself."""
async with RadioSetApp().run_test() as pilot:
assert pilot.app.screen.focused is pilot.app.query_one("#from_buttons")
await pilot.press("tab")
assert pilot.app.screen.focused is pilot.app.query_one("#from_strings")
await pilot.press("shift+tab")
assert pilot.app.screen.focused is pilot.app.query_one("#from_buttons")
class BadRadioSetApp(App[None]):
def compose(self) -> ComposeResult:
with RadioSet():
for n in range(20):
yield RadioButton(str(n), True)
async def test_there_can_only_be_one():
"""Adding multiple 'on' buttons should result in only one on."""
async with BadRadioSetApp().run_test() as pilot:
assert len(pilot.app.query("RadioButton.-on")) == 1
assert pilot.app.query_one(RadioSet).pressed_index == 0
class RadioSetDisabledButtonsApp(App[None]):
def compose(self) -> ComposeResult:
self.selected = []
with RadioSet():
yield RadioButton("0", disabled=True)
yield RadioButton("1")
yield RadioButton("2", disabled=True)
yield RadioButton("3", disabled=True)
yield RadioButton("4")
yield RadioButton("5")
yield RadioButton("6", disabled=True)
yield RadioButton("7")
yield RadioButton("8", disabled=True)
def on_radio_set_changed(self, radio_set: RadioSet.Changed) -> None:
self.selected.append(str(radio_set.pressed.label))
async def test_keyboard_navigation_with_disabled_buttons():
"""Regression test for https://github.com/Textualize/textual/issues/3839."""
app = RadioSetDisabledButtonsApp()
async with app.run_test() as pilot:
await pilot.press("enter")
for _ in range(5):
await pilot.press("down")
await pilot.press("enter")
for _ in range(5):
await pilot.press("up")
await pilot.press("enter")
assert app.selected == [
"1",
"4",
"5",
"7",
"1",
"4",
"1",
"7",
"5",
"4",
"1",
]
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