File size: 1,976 Bytes
2c3c408 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 | from __future__ import annotations
from rich import box
from rich.align import Align
from rich.console import RenderableType
from rich.panel import Panel
from rich.pretty import Pretty
import rich.repr
from rich.style import Style
from .. import events
from ..reactive import Reactive
from ..widget import Widget
@rich.repr.auto(angular=False)
class Placeholder(Widget, can_focus=True):
has_focus: Reactive[bool] = Reactive(False)
mouse_over: Reactive[bool] = Reactive(False)
def __init__(
# parent class constructor signature:
self,
*children: Widget,
name: str | None = None,
id: str | None = None,
classes: str | None = None,
# ...and now for our own class specific params:
title: str | None = None,
) -> None:
super().__init__(*children, name=name, id=id, classes=classes)
self.title = title
def __rich_repr__(self) -> rich.repr.Result:
yield from super().__rich_repr__()
yield "has_focus", self.has_focus, False
yield "mouse_over", self.mouse_over, False
def render(self) -> RenderableType:
# Apply colours only inside render_styled
# Pass the full RICH style object into `render` - not the `Styles`
return Panel(
Align.center(
Pretty(self, no_wrap=True, overflow="ellipsis"),
vertical="middle",
),
title=self.title or self.__class__.__name__,
border_style="green" if self.mouse_over else "blue",
box=box.HEAVY if self.has_focus else box.ROUNDED,
)
async def on_focus(self, event: events.Focus) -> None:
self.has_focus = True
async def on_blur(self, event: events.Blur) -> None:
self.has_focus = False
async def on_enter(self, event: events.Enter) -> None:
self.mouse_over = True
async def on_leave(self, event: events.Leave) -> None:
self.mouse_over = False
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