winio 0.11.0

Single-threaded async GUI runtime based on compio.
Documentation 
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use inherit_methods_macro::inherit_methods;
use winio::prelude::{Error as SysError, Result as SysResult, *};

use crate::{Error, Result};

pub struct BackdropChooser {
    combo: Child<ComboBox>,
}

#[derive(Debug)]
pub enum BackdropChooserEvent {
    ChooseVibrancy(Option<Vibrancy>),
}

#[derive(Debug)]
pub enum BackdropChooserMessage {
    Noop,
    Select,
}

impl Component for BackdropChooser {
    type Error = Error;
    type Event = BackdropChooserEvent;
    type Init<'a> = BorrowedContainer<'a>;
    type Message = BackdropChooserMessage;

    async fn init(init: Self::Init<'_>, _sender: &ComponentSender<Self>) -> Result<Self> {
        init! {
            combo: ComboBox = (&init) => {
                items: [
                    "None",
                    "Appearance Based",
                    "Light",
                    "Dark",
                    "Titlebar",
                    "Selection",
                    "Menu",
                    "Popover",
                    "Sidebar",
                    "Medium Light",
                    "Ultra Dark",
                    "Header View",
                    "Sheet",
                    "Window Background",
                    "HUD Window",
                    "Full Screen UI",
                    "Tooltip",
                    "Content Background",
                    "Under Window Background",
                    "Under Page Background",
                ],
            }
        }
        Ok(Self { combo })
    }

    async fn start(&mut self, sender: &ComponentSender<Self>) -> ! {
        start! {
            sender, default: BackdropChooserMessage::Noop,
            self.combo => {
                ComboBoxEvent::Select => BackdropChooserMessage::Select,
            }
        }
    }

    #[allow(deprecated)]
    async fn update(
        &mut self,
        message: Self::Message,
        sender: &ComponentSender<Self>,
    ) -> Result<bool> {
        match message {
            BackdropChooserMessage::Noop => Ok(false),
            BackdropChooserMessage::Select => {
                let vibrancy = match self.combo.selection()? {
                    Some(0) => None,
                    Some(index) => Some(match index {
                        1 => Vibrancy::AppearanceBased,
                        2 => Vibrancy::Light,
                        3 => Vibrancy::Dark,
                        4 => Vibrancy::Titlebar,
                        5 => Vibrancy::Selection,
                        6 => Vibrancy::Menu,
                        7 => Vibrancy::Popover,
                        8 => Vibrancy::Sidebar,
                        9 => Vibrancy::MediumLight,
                        10 => Vibrancy::UltraDark,
                        11 => Vibrancy::HeaderView,
                        12 => Vibrancy::Sheet,
                        13 => Vibrancy::WindowBackground,
                        14 => Vibrancy::HudWindow,
                        15 => Vibrancy::FullScreenUI,
                        16 => Vibrancy::Tooltip,
                        17 => Vibrancy::ContentBackground,
                        18 => Vibrancy::UnderWindowBackground,
                        19 => Vibrancy::UnderPageBackground,
                        _ => unreachable!(),
                    }),
                    _ => None,
                };
                sender.output(BackdropChooserEvent::ChooseVibrancy(vibrancy));
                Ok(true)
            }
        }
    }
}

impl Failable for BackdropChooser {
    type Error = SysError;
}

#[inherit_methods(from = "self.combo")]
impl Layoutable for BackdropChooser {
    fn loc(&self) -> SysResult<Point>;

    fn set_loc(&mut self, p: Point) -> SysResult<()>;

    fn size(&self) -> SysResult<Size>;

    fn set_size(&mut self, s: Size) -> SysResult<()>;

    fn preferred_size(&self) -> SysResult<Size>;

    fn min_size(&self) -> SysResult<Size>;
}