winio-ui-app-kit 0.6.0

AppKit backend for winio.
Documentation 
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use std::ptr::NonNull;

use inherit_methods_macro::inherit_methods;
use objc2::rc::Retained;
use wgpu::{
    CreateSurfaceError, Instance, Surface, SurfaceTarget,
    rwh::{
        AppKitWindowHandle, DisplayHandle, HandleError, HasDisplayHandle, HasWindowHandle,
        RawWindowHandle, WindowHandle,
    },
};
use winio_handle::{AsContainer, AsWidget};
use winio_primitive::{MouseButton, Point, Size, Vector};

use crate::{CanvasImpl, Result};

#[derive(Debug)]
pub struct WgpuCanvas {
    handle: CanvasImpl,
}

#[inherit_methods(from = "self.handle")]
impl WgpuCanvas {
    pub fn new(parent: impl AsContainer) -> Result<Self> {
        let handle = CanvasImpl::new(parent)?;
        Ok(Self { handle })
    }

    pub fn is_visible(&self) -> Result<bool>;

    pub fn set_visible(&mut self, v: bool) -> Result<()>;

    pub fn is_enabled(&self) -> Result<bool>;

    pub fn set_enabled(&mut self, v: bool) -> Result<()>;

    pub fn loc(&self) -> Result<Point>;

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

    pub fn size(&self) -> Result<Size>;

    pub fn set_size(&mut self, v: Size) -> Result<()>;

    pub fn tooltip(&self) -> Result<String>;

    pub fn set_tooltip(&mut self, s: impl AsRef<str>) -> Result<()>;

    pub async fn wait_mouse_down(&self) -> MouseButton {
        self.handle.wait_mouse_down().await
    }

    pub async fn wait_mouse_up(&self) -> MouseButton {
        self.handle.wait_mouse_up().await
    }

    pub async fn wait_mouse_move(&self) -> Point {
        self.handle.wait_mouse_move().await
    }

    pub async fn wait_mouse_wheel(&self) -> Vector {
        self.handle.wait_mouse_wheel().await
    }

    pub fn create_surface(
        &self,
        instance: &Instance,
    ) -> std::result::Result<Surface<'static>, CreateSurfaceError> {
        let handle = RawWindowHandle::AppKit(AppKitWindowHandle::new(
            NonNull::new(
                Retained::as_ptr(self.handle.as_widget().as_app_kit())
                    .cast_mut()
                    .cast(),
            )
            .unwrap(),
        ));

        struct WindowHandleWrapper(RawWindowHandle);

        unsafe impl Send for WindowHandleWrapper {}
        unsafe impl Sync for WindowHandleWrapper {}

        impl HasWindowHandle for WindowHandleWrapper {
            fn window_handle(&self) -> std::result::Result<WindowHandle<'_>, HandleError> {
                Ok(unsafe { WindowHandle::borrow_raw(self.0) })
            }
        }

        impl HasDisplayHandle for WindowHandleWrapper {
            fn display_handle(&self) -> std::result::Result<DisplayHandle<'_>, HandleError> {
                Ok(DisplayHandle::appkit())
            }
        }

        let target = SurfaceTarget::from(WindowHandleWrapper(handle));

        instance.create_surface(target)
    }
}

winio_handle::impl_as_widget!(WgpuCanvas, handle);