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from __future__ import annotations
import pytest
from textual.app import App, ComposeResult
from textual.geometry import Offset
from textual.widgets import Input
# A string containing only single-width characters
TEXT_SINGLE = "That gum you like is going to come back in style"
# A string containing only double-width characters
TEXT_DOUBLE = "こんにちは"
# A string containing both single and double-width characters
TEXT_MIXED = "aこんbcにdちeは"
class InputApp(App[None]):
def __init__(self, text):
super().__init__()
self._text = text
def compose(self) -> ComposeResult:
yield Input(self._text)
@pytest.mark.parametrize(
"text, click_at, should_land",
(
# Single-width characters
(TEXT_SINGLE, 0, 0),
(TEXT_SINGLE, 1, 1),
(TEXT_SINGLE, 10, 10),
(TEXT_SINGLE, len(TEXT_SINGLE) - 1, len(TEXT_SINGLE) - 1),
(TEXT_SINGLE, len(TEXT_SINGLE), len(TEXT_SINGLE)),
(TEXT_SINGLE, len(TEXT_SINGLE) + 10, len(TEXT_SINGLE)),
# Double-width characters
(TEXT_DOUBLE, 0, 0),
(TEXT_DOUBLE, 1, 0),
(TEXT_DOUBLE, 2, 1),
(TEXT_DOUBLE, 3, 1),
(TEXT_DOUBLE, 4, 2),
(TEXT_DOUBLE, 5, 2),
(TEXT_DOUBLE, (len(TEXT_DOUBLE) * 2) - 1, len(TEXT_DOUBLE) - 1),
(TEXT_DOUBLE, len(TEXT_DOUBLE) * 2, len(TEXT_DOUBLE)),
(TEXT_DOUBLE, len(TEXT_DOUBLE) * 10, len(TEXT_DOUBLE)),
# Mixed-width characters
(TEXT_MIXED, 0, 0),
(TEXT_MIXED, 1, 1),
(TEXT_MIXED, 2, 1),
(TEXT_MIXED, 3, 2),
(TEXT_MIXED, 4, 2),
(TEXT_MIXED, 5, 3),
(TEXT_MIXED, 13, 9),
(TEXT_MIXED, 14, 9),
(TEXT_MIXED, 15, 10),
(TEXT_MIXED, 60, 10),
),
)
async def test_mouse_clicks_within(text, click_at, should_land):
"""Mouse clicks should result in the cursor going to the right place."""
async with InputApp(text).run_test() as pilot:
# Note the offsets to take into account the decoration around an
# Input.
await pilot.click(Input, Offset(click_at + 3, 1))
await pilot.pause()
assert pilot.app.query_one(Input).cursor_position == should_land
async def test_mouse_click_outwith_moves_cursor_to_nearest_cell():
"""Mouse clicks in the padding or border area should move the cursor as this makes
dragging and selecting text easier."""
async with InputApp(TEXT_SINGLE).run_test() as pilot:
pilot.app.query_one(Input).cursor_position = 3
assert pilot.app.query_one(Input).cursor_position == 3
await pilot.click(Input, Offset(0, 0))
await pilot.pause()
assert pilot.app.query_one(Input).cursor_position == 0
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