Method _create_options

src/ptpython/python_input.py:556–898

Create a list of `Option` instances for the options sidebar.

(self)

        )

    def _create_options(self) -> list[OptionCategory[Any]]:
        """
        Create a list of `Option` instances for the options sidebar.
        """

        def enable(attribute: str, value: Any = True) -> bool:
            setattr(self, attribute, value)

            # Return `True`, to be able to chain this in the lambdas below.
            return True

        def disable(attribute: str) -> bool:
            setattr(self, attribute, False)
            return True

        def simple_option(
            title: str,
            description: str,
            field_name: str,
            values: tuple[str, str] = ("off", "on"),
        ) -> Option[str]:
            "Create Simple on/of option."

            def get_current_value() -> str:
                return values[bool(getattr(self, field_name))]

            def get_values() -> dict[str, Callable[[], bool]]:
                return {
                    values[1]: lambda: enable(field_name),
                    values[0]: lambda: disable(field_name),
                }

            return Option(
                title=title,
                description=description,
                get_values=get_values,
                get_current_value=get_current_value,
            )

        brightness_values = [1.0 / 20 * value for value in range(0, 21)]

        return [
            OptionCategory(
                "Input",
                [
                    Option(
                        title="Editing mode",
                        description="Vi or emacs key bindings.",
                        get_current_value=lambda: ["Emacs", "Vi"][self.vi_mode],
                        get_values=lambda: {
                            "Emacs": lambda: disable("vi_mode"),
                            "Vi": lambda: enable("vi_mode"),
                        },
                    ),
                    Option(
                        title="Cursor shape",
                        description="Change the cursor style, possibly according "
                        "to the Vi input mode.",