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43 lines
1.1 KiB
Python
43 lines
1.1 KiB
Python
import contextlib
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import curses
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import typing as T
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from pqcli.ui.curses.colors import COLOR_FOCUSED, has_colors
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from pqcli.ui.curses.event_handler import EventHandler
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@contextlib.contextmanager
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def focus_standout(focused: bool, win: T.Any) -> T.Generator:
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if focused:
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if has_colors():
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win.attron(curses.color_pair(COLOR_FOCUSED))
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else:
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win.standout()
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yield
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if focused:
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if has_colors():
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win.attroff(curses.color_pair(COLOR_FOCUSED))
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else:
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win.standend()
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class Focusable:
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def __init__(self, *args: T.Any, **kwargs: T.Any) -> None:
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self._focused = False
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self._on_focus_change = EventHandler()
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super().__init__(*args, **kwargs)
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@property
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def focused(self) -> bool:
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return self._focused
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@focused.setter
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def focused(self, focused: bool) -> None:
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self._focused = focused
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self._on_focus_change()
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@contextlib.contextmanager
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def focus_standout(self, win: T.Any) -> T.Generator:
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with focus_standout(self._focused, win):
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yield
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