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#!/usr/bin/env python
from __future__ import annotations
import typing
import urwid
class PopUpDialog(urwid.WidgetWrap):
"""A dialog that appears with nothing but a close button"""
signals: typing.ClassVar[list[str]] = ["close"]
def __init__(self):
close_button = urwid.Button("that's pretty cool")
urwid.connect_signal(close_button, "click", lambda button: self._emit("close"))
pile = urwid.Pile(
[
urwid.Text("^^ I'm attached to the widget that opened me. Try resizing the window!\n"),
close_button,
]
)
super().__init__(urwid.AttrMap(urwid.Filler(pile), "popbg"))
class ThingWithAPopUp(urwid.PopUpLauncher):
def __init__(self) -> None:
super().__init__(urwid.Button("click-me"))
urwid.connect_signal(self.original_widget, "click", lambda button: self.open_pop_up())
def create_pop_up(self) -> PopUpDialog:
pop_up = PopUpDialog()
urwid.connect_signal(pop_up, "close", lambda button: self.close_pop_up())
return pop_up
def get_pop_up_parameters(self):
return {"left": 0, "top": 1, "overlay_width": 32, "overlay_height": 7}
def keypress(self, size: tuple[int], key: str) -> str | None:
parsed = super().keypress(size, key)
if parsed in {"q", "Q"}:
raise urwid.ExitMainLoop("Done")
return parsed
fill = urwid.Filler(urwid.Padding(ThingWithAPopUp(), urwid.CENTER, 15))
loop = urwid.MainLoop(fill, [("popbg", "white", "dark blue")], pop_ups=True)
loop.run()
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