Class ErrorMessage

libs/code/deepagents_code/widgets/messages.py:3036–3084

Widget displaying an error message.

class ErrorMessage(Static):
    """Widget displaying an error message."""

    DEFAULT_CSS = """
    ErrorMessage {
        height: auto;
        padding: 1;
        margin: 0 0 1 0;
        background: $error-muted;
        color: white;
        border-left: wide $error;
        pointer: text;
    }
    """
    """Tinted background + left border to visually separate errors from output."""

    def __init__(self, error: str | Content, **kwargs: Any) -> None:
        """Initialize an error message.

        Args:
            error: Plain string, or `Content` for pre-styled bodies
                (e.g. with `link`-styled spans).
            **kwargs: Additional arguments passed to parent.
        """
        self._content = error
        super().__init__(**kwargs)

    def render(self) -> Content:
        """Render with theme-aware colors.

        Returns:
            Styled error content; spans on a `Content` body are preserved.
        """
        colors = theme.get_theme_colors(self)
        return Content.assemble(
            Content.styled("Error: ", f"bold {colors.error}"),
            self._content,
        )

    def on_mount(self) -> None:
        """Set border style based on charset mode."""
        if is_ascii_mode():
            colors = theme.get_theme_colors(self)
            self.styles.border_left = ("ascii", colors.error)

    def on_click(self, event: Click) -> None:  # noqa: PLR6301  # Textual event handler
        """Open clicked URLs."""
        if event.style.link:
            open_style_link(event)


class _MutedRichMarkdown: