Create `iced_widget` subcrate and re-organize the whole codebase

19 files changed, 136 insertions, 1062 deletions

diff --git a/src/advanced.rs b/src/advanced.rs
new file mode 100644
index 00000000..714076e0
--- /dev/null
+++ b/src/advanced.rs
@@ -0,0 +1,9 @@
+//! Leverage advanced concepts like custom widgets.
+pub use crate::core::image;
+pub use crate::core::layout::{self, Layout};
+pub use crate::core::overlay::{self, Overlay};
+pub use crate::core::renderer::{self, Renderer};
+pub use crate::core::svg;
+pub use crate::core::text::{self, Text};
+pub use crate::core::widget::{self, Widget};
+pub use crate::core::{Clipboard, Shell};
diff --git a/src/application.rs b/src/application.rs
index b9871556..f5cf3317 100644
--- a/src/application.rs
+++ b/src/application.rs
@@ -1,7 +1,7 @@
 //! Build interactive cross-platform applications.
 use crate::{Command, Element, Executor, Settings, Subscription};
 
-pub use iced_native::application::{Appearance, StyleSheet};
+pub use crate::style::application::{Appearance, StyleSheet};
 
 /// An interactive cross-platform application.
 ///
@@ -198,24 +198,24 @@ pub trait Application: Sized {
             default_font: settings.default_font,
             default_text_size: settings.default_text_size,
             antialiasing: if settings.antialiasing {
-                Some(crate::renderer::Antialiasing::MSAAx4)
+                Some(crate::graphics::Antialiasing::MSAAx4)
             } else {
                 None
             },
             ..crate::renderer::Settings::default()
         };
 
-        Ok(crate::runtime::application::run::<
+        Ok(crate::shell::application::run::<
             Instance<Self>,
             Self::Executor,
-            crate::renderer::window::Compositor<Self::Theme>,
+            crate::renderer::Compositor<Self::Theme>,
         >(settings.into(), renderer_settings)?)
     }
 }
 
 struct Instance<A: Application>(A);
 
-impl<A> iced_winit::Program for Instance<A>
+impl<A> crate::native::Program for Instance<A>
 where
     A: Application,
 {
@@ -231,7 +231,7 @@ where
     }
 }
 
-impl<A> crate::runtime::Application for Instance<A>
+impl<A> crate::shell::Application for Instance<A>
 where
     A: Application,
 {
diff --git a/src/clipboard.rs b/src/clipboard.rs
deleted file mode 100644
index dde17051..00000000
--- a/src/clipboard.rs
+++ /dev/null
@@ -1,3 +0,0 @@
-//! Access the clipboard.
-#[cfg(not(target_arch = "wasm32"))]
-pub use crate::runtime::clipboard::{read, write};
diff --git a/src/element.rs b/src/element.rs
deleted file mode 100644
index 2eb1bb4d..00000000
--- a/src/element.rs
+++ /dev/null
@@ -1,5 +0,0 @@
-/// A generic widget.
-///
-/// This is an alias of an `iced_native` element with a default `Renderer`.
-pub type Element<'a, Message, Renderer = crate::Renderer> =
-    crate::runtime::Element<'a, Message, Renderer>;
diff --git a/src/error.rs b/src/error.rs
index 5326718f..111bedf2 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -1,4 +1,6 @@
-use iced_futures::futures;
+use crate::futures;
+use crate::graphics;
+use crate::shell;
 
 /// An error that occurred while running an application.
 #[derive(Debug, thiserror::Error)]
@@ -13,19 +15,19 @@ pub enum Error {
 
     /// The application graphics context could not be created.
     #[error("the application graphics context could not be created")]
-    GraphicsCreationFailed(iced_renderer::Error),
+    GraphicsCreationFailed(graphics::Error),
 }
 
-impl From<iced_winit::Error> for Error {
-    fn from(error: iced_winit::Error) -> Error {
+impl From<shell::Error> for Error {
+    fn from(error: shell::Error) -> Error {
         match error {
-            iced_winit::Error::ExecutorCreationFailed(error) => {
+            shell::Error::ExecutorCreationFailed(error) => {
                 Error::ExecutorCreationFailed(error)
             }
-            iced_winit::Error::WindowCreationFailed(error) => {
+            shell::Error::WindowCreationFailed(error) => {
                 Error::WindowCreationFailed(Box::new(error))
             }
-            iced_winit::Error::GraphicsCreationFailed(error) => {
+            shell::Error::GraphicsCreationFailed(error) => {
                 Error::GraphicsCreationFailed(error)
             }
         }
diff --git a/src/executor.rs b/src/executor.rs
deleted file mode 100644
index 36ae274e..00000000
--- a/src/executor.rs
+++ /dev/null
@@ -1,14 +0,0 @@
-//! Choose your preferred executor to power your application.
-pub use crate::runtime::Executor;
-
-/// A default cross-platform executor.
-///
-/// - On native platforms, it will use:
-///   - `iced_futures::backend::native::tokio` when the `tokio` feature is enabled.
-///   - `iced_futures::backend::native::async-std` when the `async-std` feature is
-///     enabled.
-///   - `iced_futures::backend::native::smol` when the `smol` feature is enabled.
-///   - `iced_futures::backend::native::thread_pool` otherwise.
-///
-/// - On Wasm, it will use `iced_futures::backend::wasm::wasm_bindgen`.
-pub type Default = iced_futures::backend::default::Executor;
diff --git a/src/keyboard.rs b/src/keyboard.rs
deleted file mode 100644
index 2134a66b..00000000
--- a/src/keyboard.rs
+++ /dev/null
@@ -1,2 +0,0 @@
-//! Listen and react to keyboard events.
-pub use crate::runtime::keyboard::{Event, KeyCode, Modifiers};
diff --git a/src/lib.rs b/src/lib.rs
index bb162f2d..b71b7781 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -164,51 +164,133 @@
 #![forbid(rust_2018_idioms, unsafe_code)]
 #![allow(clippy::inherent_to_string, clippy::type_complexity)]
 #![cfg_attr(docsrs, feature(doc_cfg))]
+use iced_widget::graphics;
+use iced_widget::renderer;
+use iced_widget::style;
+use iced_winit as shell;
+use iced_winit::core;
+use iced_winit::native;
+
+pub use iced_futures::futures;
 
-mod element;
 mod error;
-mod result;
 mod sandbox;
 
 pub mod application;
-pub mod clipboard;
-pub mod executor;
-pub mod keyboard;
-pub mod mouse;
-pub mod overlay;
 pub mod settings;
 pub mod time;
-pub mod touch;
-pub mod widget;
 pub mod window;
 
-use iced_renderer as renderer;
-use iced_winit as runtime;
+#[cfg(feature = "advanced")]
+pub mod advanced;
+
+pub use style::theme;
+
+pub use crate::core::alignment;
+pub use crate::core::event;
+pub use crate::core::{
+    color, Alignment, Background, Color, ContentFit, Length, Padding, Point,
+    Rectangle, Size, Vector,
+};
+pub use crate::native::Command;
+pub use native::subscription;
+
+pub mod clipboard {
+    //! Access the clipboard.
+    pub use crate::shell::clipboard::{read, write};
+}
+
+pub mod executor {
+    //! Choose your preferred executor to power your application.
+    pub use iced_futures::Executor;
+
+    /// A default cross-platform executor.
+    ///
+    /// - On native platforms, it will use:
+    ///   - `iced_futures::backend::native::tokio` when the `tokio` feature is enabled.
+    ///   - `iced_futures::backend::native::async-std` when the `async-std` feature is
+    ///     enabled.
+    ///   - `iced_futures::backend::native::smol` when the `smol` feature is enabled.
+    ///   - `iced_futures::backend::native::thread_pool` otherwise.
+    ///
+    /// - On Wasm, it will use `iced_futures::backend::wasm::wasm_bindgen`.
+    pub type Default = iced_futures::backend::default::Executor;
+}
+
+pub mod font {
+    //! Load and use fonts.
+    pub use crate::core::font::*;
+    pub use crate::native::font::*;
+}
+
+pub mod keyboard {
+    //! Listen and react to keyboard events.
+    pub use crate::core::keyboard::{Event, KeyCode, Modifiers};
+}
+
+pub mod mouse {
+    //! Listen and react to mouse events.
+    pub use crate::core::mouse::{Button, Event, Interaction, ScrollDelta};
+}
 
-pub use iced_native::theme;
-pub use runtime::event;
-pub use runtime::font;
-pub use runtime::subscription;
+#[cfg(feature = "system")]
+pub mod system {
+    //! Retrieve system information.
+    pub use crate::native::system::Information;
+    pub use crate::shell::system::*;
+}
+
+pub mod overlay {
+    //! Display interactive elements on top of other widgets.
+
+    /// A generic [`Overlay`].
+    ///
+    /// This is an alias of an `iced_native` element with a default `Renderer`.
+    ///
+    /// [`Overlay`]: iced_native::Overlay
+    pub type Element<'a, Message, Renderer = crate::Renderer> =
+        crate::core::overlay::Element<'a, Message, Renderer>;
+
+    pub use iced_widget::overlay::*;
+}
+
+pub mod touch {
+    //! Listen and react to touch events.
+    pub use crate::core::touch::{Event, Finger};
+}
+
+pub mod widget {
+    //! Use the built-in widgets or create your own.
+    pub use iced_widget::*;
+
+    // We hide the re-exported modules by `iced_widget`
+    mod core {}
+    mod graphics {}
+    mod native {}
+    mod renderer {}
+    mod style {}
+}
 
 pub use application::Application;
-pub use element::Element;
 pub use error::Error;
 pub use event::Event;
 pub use executor::Executor;
 pub use font::Font;
-pub use renderer::Renderer;
-pub use result::Result;
 pub use sandbox::Sandbox;
 pub use settings::Settings;
 pub use subscription::Subscription;
 pub use theme::Theme;
 
-pub use runtime::alignment;
-pub use runtime::futures;
-pub use runtime::{
-    color, Alignment, Background, Color, Command, ContentFit, Length, Padding,
-    Point, Rectangle, Size, Vector,
-};
+/// The default renderer.
+pub type Renderer<Theme = style::Theme> = renderer::Renderer<Theme>;
 
-#[cfg(feature = "system")]
-pub use runtime::system;
+/// A generic widget.
+///
+/// This is an alias of an `iced_native` element with a default `Renderer`.
+pub type Element<'a, Message, Renderer = crate::Renderer> =
+    crate::core::Element<'a, Message, Renderer>;
+
+/// The result of running an [`Application`].
+///
+/// [`Application`]: crate::Application
+pub type Result = std::result::Result<(), Error>;
diff --git a/src/mouse.rs b/src/mouse.rs
deleted file mode 100644
index d61ed09a..00000000
--- a/src/mouse.rs
+++ /dev/null
@@ -1,2 +0,0 @@
-//! Listen and react to mouse events.
-pub use crate::runtime::mouse::{Button, Event, Interaction, ScrollDelta};
diff --git a/src/overlay.rs b/src/overlay.rs
deleted file mode 100644
index c0f4c492..00000000
--- a/src/overlay.rs
+++ /dev/null
@@ -1,18 +0,0 @@
-//! Display interactive elements on top of other widgets.
-
-/// A generic [`Overlay`].
-///
-/// This is an alias of an `iced_native` element with a default `Renderer`.
-///
-/// [`Overlay`]: iced_native::Overlay
-pub type Element<'a, Message, Renderer = crate::Renderer> =
-    iced_native::overlay::Element<'a, Message, Renderer>;
-
-pub mod menu {
-    //! Build and show dropdown menus.
-    pub use iced_native::overlay::menu::{Appearance, State, StyleSheet};
-
-    /// A widget that produces a message when clicked.
-    pub type Menu<'a, Message, Renderer = crate::Renderer> =
-        iced_native::overlay::Menu<'a, Message, Renderer>;
-}
diff --git a/src/result.rs b/src/result.rs
deleted file mode 100644
index ef565bd6..00000000
--- a/src/result.rs
+++ /dev/null
@@ -1,6 +0,0 @@
-use crate::Error;
-
-/// The result of running an [`Application`].
-///
-/// [`Application`]: crate::Application
-pub type Result = std::result::Result<(), Error>;
diff --git a/src/touch.rs b/src/touch.rs
index 0b77c386..f2bdfca8 100644
--- a/src/touch.rs
+++ b/src/touch.rs
@@ -1,2 +1,2 @@
 //! Listen and react to touch events.
-pub use crate::runtime::touch::{Event, Finger};
+pub use crate::core::touch::{Event, Finger};
diff --git a/src/widget.rs b/src/widget.rs
deleted file mode 100644
index 19434e84..00000000
--- a/src/widget.rs
+++ /dev/null
@@ -1,239 +0,0 @@
-//! Display information and interactive controls in your application.
-pub use iced_native::widget::helpers::*;
-
-pub use iced_native::{column, row};
-
-/// A container that distributes its contents vertically.
-pub type Column<'a, Message, Renderer = crate::Renderer> =
-    iced_native::widget::Column<'a, Message, Renderer>;
-
-/// A container that distributes its contents horizontally.
-pub type Row<'a, Message, Renderer = crate::Renderer> =
-    iced_native::widget::Row<'a, Message, Renderer>;
-
-pub mod text {
-    //! Write some text for your users to read.
-    pub use iced_native::widget::text::{Appearance, StyleSheet};
-
-    /// A paragraph of text.
-    pub type Text<'a, Renderer = crate::Renderer> =
-        iced_native::widget::Text<'a, Renderer>;
-}
-
-pub mod button {
-    //! Allow your users to perform actions by pressing a button.
-    pub use iced_native::widget::button::{Appearance, StyleSheet};
-
-    /// A widget that produces a message when clicked.
-    pub type Button<'a, Message, Renderer = crate::Renderer> =
-        iced_native::widget::Button<'a, Message, Renderer>;
-}
-
-pub mod checkbox {
-    //! Show toggle controls using checkboxes.
-    pub use iced_native::widget::checkbox::{Appearance, Icon, StyleSheet};
-
-    /// A box that can be checked.
-    pub type Checkbox<'a, Message, Renderer = crate::Renderer> =
-        iced_native::widget::Checkbox<'a, Message, Renderer>;
-}
-
-pub mod container {
-    //! Decorate content and apply alignment.
-    pub use iced_native::widget::container::{Appearance, StyleSheet};
-
-    /// An element decorating some content.
-    pub type Container<'a, Message, Renderer = crate::Renderer> =
-        iced_native::widget::Container<'a, Message, Renderer>;
-}
-
-pub mod pane_grid {
-    //! Let your users split regions of your application and organize layout dynamically.
-    //!
-    //! [![Pane grid - Iced](https://thumbs.gfycat.com/MixedFlatJellyfish-small.gif)](https://gfycat.com/mixedflatjellyfish)
-    //!
-    //! # Example
-    //! The [`pane_grid` example] showcases how to use a [`PaneGrid`] with resizing,
-    //! drag and drop, and hotkey support.
-    //!
-    //! [`pane_grid` example]: https://github.com/iced-rs/iced/tree/0.8/examples/pane_grid
-    pub use iced_native::widget::pane_grid::{
-        Axis, Configuration, Direction, DragEvent, Line, Node, Pane,
-        ResizeEvent, Split, State, StyleSheet,
-    };
-
-    /// A collection of panes distributed using either vertical or horizontal splits
-    /// to completely fill the space available.
-    ///
-    /// [![Pane grid - Iced](https://thumbs.gfycat.com/MixedFlatJellyfish-small.gif)](https://gfycat.com/mixedflatjellyfish)
-    pub type PaneGrid<'a, Message, Renderer = crate::Renderer> =
-        iced_native::widget::PaneGrid<'a, Message, Renderer>;
-
-    /// The content of a [`Pane`].
-    pub type Content<'a, Message, Renderer = crate::Renderer> =
-        iced_native::widget::pane_grid::Content<'a, Message, Renderer>;
-
-    /// The title bar of a [`Pane`].
-    pub type TitleBar<'a, Message, Renderer = crate::Renderer> =
-        iced_native::widget::pane_grid::TitleBar<'a, Message, Renderer>;
-}
-
-pub mod pick_list {
-    //! Display a dropdown list of selectable values.
-    pub use iced_native::widget::pick_list::{
-        Appearance, Handle, Icon, StyleSheet,
-    };
-
-    /// A widget allowing the selection of a single value from a list of options.
-    pub type PickList<'a, T, Message, Renderer = crate::Renderer> =
-        iced_native::widget::PickList<'a, T, Message, Renderer>;
-}
-
-pub mod radio {
-    //! Create choices using radio buttons.
-    pub use iced_native::widget::radio::{Appearance, StyleSheet};
-
-    /// A circular button representing a choice.
-    pub type Radio<Message, Renderer = crate::Renderer> =
-        iced_native::widget::Radio<Message, Renderer>;
-}
-
-pub mod scrollable {
-    //! Navigate an endless amount of content with a scrollbar.
-    pub use iced_native::widget::scrollable::{
-        snap_to, style::Scrollbar, style::Scroller, Id, Properties,
-        RelativeOffset, StyleSheet,
-    };
-
-    /// A widget that can vertically display an infinite amount of content
-    /// with a scrollbar.
-    pub type Scrollable<'a, Message, Renderer = crate::Renderer> =
-        iced_native::widget::Scrollable<'a, Message, Renderer>;
-}
-
-pub mod toggler {
-    //! Show toggle controls using togglers.
-    pub use iced_native::widget::toggler::{Appearance, StyleSheet};
-
-    /// A toggler widget.
-    pub type Toggler<'a, Message, Renderer = crate::Renderer> =
-        iced_native::widget::Toggler<'a, Message, Renderer>;
-}
-
-pub mod text_input {
-    //! Display fields that can be filled with text.
-    pub use iced_native::widget::text_input::{
-        focus, move_cursor_to, move_cursor_to_end, move_cursor_to_front,
-        select_all, Appearance, Id, StyleSheet,
-    };
-
-    /// A field that can be filled with text.
-    pub type TextInput<'a, Message, Renderer = crate::Renderer> =
-        iced_native::widget::TextInput<'a, Message, Renderer>;
-}
-
-pub mod tooltip {
-    //! Display a widget over another.
-    pub use iced_native::widget::tooltip::Position;
-
-    /// A widget allowing the selection of a single value from a list of options.
-    pub type Tooltip<'a, Message, Renderer = crate::Renderer> =
-        iced_native::widget::Tooltip<'a, Message, Renderer>;
-}
-
-pub use iced_native::widget::progress_bar;
-pub use iced_native::widget::rule;
-pub use iced_native::widget::slider;
-pub use iced_native::widget::vertical_slider;
-pub use iced_native::widget::Space;
-
-pub use button::Button;
-pub use checkbox::Checkbox;
-pub use container::Container;
-pub use pane_grid::PaneGrid;
-pub use pick_list::PickList;
-pub use progress_bar::ProgressBar;
-pub use radio::Radio;
-pub use rule::Rule;
-pub use scrollable::Scrollable;
-pub use slider::Slider;
-pub use text::Text;
-pub use text_input::TextInput;
-pub use toggler::Toggler;
-pub use tooltip::Tooltip;
-pub use vertical_slider::VerticalSlider;
-
-#[cfg(feature = "canvas")]
-#[cfg_attr(docsrs, doc(cfg(feature = "canvas")))]
-pub mod canvas;
-
-#[cfg(feature = "canvas")]
-#[cfg_attr(docsrs, doc(cfg(feature = "canvas")))]
-/// Creates a new [`Canvas`].
-pub fn canvas<P, Message, Renderer>(program: P) -> Canvas<P, Message, Renderer>
-where
-    Renderer: iced_renderer::geometry::Renderer,
-    P: canvas::Program<Message, Renderer>,
-{
-    Canvas::new(program)
-}
-
-#[cfg(feature = "image")]
-#[cfg_attr(docsrs, doc(cfg(feature = "image")))]
-pub mod image {
-    //! Display images in your user interface.
-    pub use iced_native::image::Handle;
-
-    /// A frame that displays an image.
-    pub type Image = iced_native::widget::Image<Handle>;
-
-    pub use iced_native::widget::image::viewer;
-    pub use viewer::Viewer;
-}
-
-#[cfg(feature = "qr_code")]
-#[cfg_attr(docsrs, doc(cfg(feature = "qr_code")))]
-pub mod qr_code;
-
-#[cfg(feature = "svg")]
-#[cfg_attr(docsrs, doc(cfg(feature = "svg")))]
-pub mod svg {
-    //! Display vector graphics in your application.
-    pub use iced_native::svg::Handle;
-    pub use iced_native::widget::svg::{Appearance, StyleSheet, Svg};
-}
-
-#[cfg(feature = "canvas")]
-#[cfg_attr(docsrs, doc(cfg(feature = "canvas")))]
-pub use canvas::Canvas;
-
-#[cfg(feature = "image")]
-#[cfg_attr(docsrs, doc(cfg(feature = "image")))]
-pub use image::Image;
-
-#[cfg(feature = "qr_code")]
-#[cfg_attr(docsrs, doc(cfg(feature = "qr_code")))]
-pub use qr_code::QRCode;
-
-#[cfg(feature = "svg")]
-#[cfg_attr(docsrs, doc(cfg(feature = "svg")))]
-pub use svg::Svg;
-
-use crate::Command;
-use iced_native::widget::operation;
-
-/// Focuses the previous focusable widget.
-pub fn focus_previous<Message>() -> Command<Message>
-where
-    Message: 'static,
-{
-    Command::widget(operation::focusable::focus_previous())
-}
-
-/// Focuses the next focusable widget.
-pub fn focus_next<Message>() -> Command<Message>
-where
-    Message: 'static,
-{
-    Command::widget(operation::focusable::focus_next())
-}
diff --git a/src/widget/canvas.rs b/src/widget/canvas.rs
deleted file mode 100644
index bc5995c6..00000000
--- a/src/widget/canvas.rs
+++ /dev/null
@@ -1,238 +0,0 @@
-//! Draw 2D graphics for your users.
-pub mod event;
-
-mod cursor;
-mod program;
-
-pub use cursor::Cursor;
-pub use event::Event;
-pub use program::Program;
-
-pub use iced_renderer::geometry::*;
-
-use crate::{Length, Point, Rectangle, Size, Vector};
-
-use iced_native::layout::{self, Layout};
-use iced_native::mouse;
-use iced_native::renderer;
-use iced_native::widget::tree::{self, Tree};
-use iced_native::{Clipboard, Element, Shell, Widget};
-
-use std::marker::PhantomData;
-
-/// A widget capable of drawing 2D graphics.
-///
-/// ## Drawing a simple circle
-/// If you want to get a quick overview, here's how we can draw a simple circle:
-///
-/// ```no_run
-/// use iced::widget::canvas::{self, Canvas, Cursor, Fill, Frame, Geometry, Path, Program};
-/// use iced::{Color, Rectangle, Theme, Renderer};
-///
-/// // First, we define the data we need for drawing
-/// #[derive(Debug)]
-/// struct Circle {
-///     radius: f32,
-/// }
-///
-/// // Then, we implement the `Program` trait
-/// impl Program<()> for Circle {
-///     type State = ();
-///
-///     fn draw(&self, _state: &(), renderer: &Renderer, _theme: &Theme, bounds: Rectangle, _cursor: Cursor) -> Vec<Geometry>{
-///         // We prepare a new `Frame`
-///         let mut frame = Frame::new(renderer, bounds.size());
-///
-///         // We create a `Path` representing a simple circle
-///         let circle = Path::circle(frame.center(), self.radius);
-///
-///         // And fill it with some color
-///         frame.fill(&circle, Color::BLACK);
-///
-///         // Finally, we produce the geometry
-///         vec![frame.into_geometry()]
-///     }
-/// }
-///
-/// // Finally, we simply use our `Circle` to create the `Canvas`!
-/// let canvas = Canvas::new(Circle { radius: 50.0 });
-/// ```
-#[derive(Debug)]
-pub struct Canvas<P, Message, Renderer = crate::Renderer>
-where
-    Renderer: iced_renderer::geometry::Renderer,
-    P: Program<Message, Renderer>,
-{
-    width: Length,
-    height: Length,
-    program: P,
-    message_: PhantomData<Message>,
-    theme_: PhantomData<Renderer>,
-}
-
-impl<P, Message, Renderer> Canvas<P, Message, Renderer>
-where
-    Renderer: iced_renderer::geometry::Renderer,
-    P: Program<Message, Renderer>,
-{
-    const DEFAULT_SIZE: f32 = 100.0;
-
-    /// Creates a new [`Canvas`].
-    pub fn new(program: P) -> Self {
-        Canvas {
-            width: Length::Fixed(Self::DEFAULT_SIZE),
-            height: Length::Fixed(Self::DEFAULT_SIZE),
-            program,
-            message_: PhantomData,
-            theme_: PhantomData,
-        }
-    }
-
-    /// Sets the width of the [`Canvas`].
-    pub fn width(mut self, width: impl Into<Length>) -> Self {
-        self.width = width.into();
-        self
-    }
-
-    /// Sets the height of the [`Canvas`].
-    pub fn height(mut self, height: impl Into<Length>) -> Self {
-        self.height = height.into();
-        self
-    }
-}
-
-impl<P, Message, Renderer> Widget<Message, Renderer>
-    for Canvas<P, Message, Renderer>
-where
-    Renderer: iced_renderer::geometry::Renderer,
-    P: Program<Message, Renderer>,
-{
-    fn tag(&self) -> tree::Tag {
-        struct Tag<T>(T);
-        tree::Tag::of::<Tag<P::State>>()
-    }
-
-    fn state(&self) -> tree::State {
-        tree::State::new(P::State::default())
-    }
-
-    fn width(&self) -> Length {
-        self.width
-    }
-
-    fn height(&self) -> Length {
-        self.height
-    }
-
-    fn layout(
-        &self,
-        _renderer: &Renderer,
-        limits: &layout::Limits,
-    ) -> layout::Node {
-        let limits = limits.width(self.width).height(self.height);
-        let size = limits.resolve(Size::ZERO);
-
-        layout::Node::new(size)
-    }
-
-    fn on_event(
-        &mut self,
-        tree: &mut Tree,
-        event: iced_native::Event,
-        layout: Layout<'_>,
-        cursor_position: Point,
-        _renderer: &Renderer,
-        _clipboard: &mut dyn Clipboard,
-        shell: &mut Shell<'_, Message>,
-    ) -> event::Status {
-        let bounds = layout.bounds();
-
-        let canvas_event = match event {
-            iced_native::Event::Mouse(mouse_event) => {
-                Some(Event::Mouse(mouse_event))
-            }
-            iced_native::Event::Touch(touch_event) => {
-                Some(Event::Touch(touch_event))
-            }
-            iced_native::Event::Keyboard(keyboard_event) => {
-                Some(Event::Keyboard(keyboard_event))
-            }
-            _ => None,
-        };
-
-        let cursor = Cursor::from_window_position(cursor_position);
-
-        if let Some(canvas_event) = canvas_event {
-            let state = tree.state.downcast_mut::<P::State>();
-
-            let (event_status, message) =
-                self.program.update(state, canvas_event, bounds, cursor);
-
-            if let Some(message) = message {
-                shell.publish(message);
-            }
-
-            return event_status;
-        }
-
-        event::Status::Ignored
-    }
-
-    fn mouse_interaction(
-        &self,
-        tree: &Tree,
-        layout: Layout<'_>,
-        cursor_position: Point,
-        _viewport: &Rectangle,
-        _renderer: &Renderer,
-    ) -> mouse::Interaction {
-        let bounds = layout.bounds();
-        let cursor = Cursor::from_window_position(cursor_position);
-        let state = tree.state.downcast_ref::<P::State>();
-
-        self.program.mouse_interaction(state, bounds, cursor)
-    }
-
-    fn draw(
-        &self,
-        tree: &Tree,
-        renderer: &mut Renderer,
-        theme: &Renderer::Theme,
-        _style: &renderer::Style,
-        layout: Layout<'_>,
-        cursor_position: Point,
-        _viewport: &Rectangle,
-    ) {
-        let bounds = layout.bounds();
-
-        if bounds.width < 1.0 || bounds.height < 1.0 {
-            return;
-        }
-
-        let cursor = Cursor::from_window_position(cursor_position);
-        let state = tree.state.downcast_ref::<P::State>();
-
-        renderer.with_translation(
-            Vector::new(bounds.x, bounds.y),
-            |renderer| {
-                renderer.draw(
-                    self.program.draw(state, renderer, theme, bounds, cursor),
-                );
-            },
-        );
-    }
-}
-
-impl<'a, P, Message, Renderer> From<Canvas<P, Message, Renderer>>
-    for Element<'a, Message, Renderer>
-where
-    Message: 'a,
-    Renderer: 'a + iced_renderer::geometry::Renderer,
-    P: Program<Message, Renderer> + 'a,
-{
-    fn from(
-        canvas: Canvas<P, Message, Renderer>,
-    ) -> Element<'a, Message, Renderer> {
-        Element::new(canvas)
-    }
-}
diff --git a/src/widget/canvas/cursor.rs b/src/widget/canvas/cursor.rs
deleted file mode 100644
index ef6a7771..00000000
--- a/src/widget/canvas/cursor.rs
+++ /dev/null
@@ -1,64 +0,0 @@
-use crate::{Point, Rectangle};
-
-/// The mouse cursor state.
-#[derive(Debug, Clone, Copy, PartialEq)]
-pub enum Cursor {
-    /// The cursor has a defined position.
-    Available(Point),
-
-    /// The cursor is currently unavailable (i.e. out of bounds or busy).
-    Unavailable,
-}
-
-impl Cursor {
-    // TODO: Remove this once this type is used in `iced_native` to encode
-    // proper cursor availability
-    pub(crate) fn from_window_position(position: Point) -> Self {
-        if position.x < 0.0 || position.y < 0.0 {
-            Cursor::Unavailable
-        } else {
-            Cursor::Available(position)
-        }
-    }
-
-    /// Returns the absolute position of the [`Cursor`], if available.
-    pub fn position(&self) -> Option<Point> {
-        match self {
-            Cursor::Available(position) => Some(*position),
-            Cursor::Unavailable => None,
-        }
-    }
-
-    /// Returns the relative position of the [`Cursor`] inside the given bounds,
-    /// if available.
-    ///
-    /// If the [`Cursor`] is not over the provided bounds, this method will
-    /// return `None`.
-    pub fn position_in(&self, bounds: &Rectangle) -> Option<Point> {
-        if self.is_over(bounds) {
-            self.position_from(bounds.position())
-        } else {
-            None
-        }
-    }
-
-    /// Returns the relative position of the [`Cursor`] from the given origin,
-    /// if available.
-    pub fn position_from(&self, origin: Point) -> Option<Point> {
-        match self {
-            Cursor::Available(position) => {
-                Some(Point::new(position.x - origin.x, position.y - origin.y))
-            }
-            Cursor::Unavailable => None,
-        }
-    }
-
-    /// Returns whether the [`Cursor`] is currently over the provided bounds
-    /// or not.
-    pub fn is_over(&self, bounds: &Rectangle) -> bool {
-        match self {
-            Cursor::Available(position) => bounds.contains(*position),
-            Cursor::Unavailable => false,
-        }
-    }
-}
diff --git a/src/widget/canvas/event.rs b/src/widget/canvas/event.rs
deleted file mode 100644
index 7c733a4d..00000000
--- a/src/widget/canvas/event.rs
+++ /dev/null
@@ -1,21 +0,0 @@
-//! Handle events of a canvas.
-use iced_native::keyboard;
-use iced_native::mouse;
-use iced_native::touch;
-
-pub use iced_native::event::Status;
-
-/// A [`Canvas`] event.
-///
-/// [`Canvas`]: crate::widget::Canvas
-#[derive(Debug, Clone, Copy, PartialEq)]
-pub enum Event {
-    /// A mouse event.
-    Mouse(mouse::Event),
-
-    /// A touch event.
-    Touch(touch::Event),
-
-    /// A keyboard event.
-    Keyboard(keyboard::Event),
-}
diff --git a/src/widget/canvas/program.rs b/src/widget/canvas/program.rs
deleted file mode 100644
index fd15663a..00000000
--- a/src/widget/canvas/program.rs
+++ /dev/null
@@ -1,108 +0,0 @@
-use crate::widget::canvas::event::{self, Event};
-use crate::widget::canvas::mouse;
-use crate::widget::canvas::Cursor;
-use crate::Rectangle;
-
-/// The state and logic of a [`Canvas`].
-///
-/// A [`Program`] can mutate internal state and produce messages for an
-/// application.
-///
-/// [`Canvas`]: crate::widget::Canvas
-pub trait Program<Message, Renderer = crate::Renderer>
-where
-    Renderer: iced_renderer::geometry::Renderer,
-{
-    /// The internal state mutated by the [`Program`].
-    type State: Default + 'static;
-
-    /// Updates the [`State`](Self::State) of the [`Program`].
-    ///
-    /// When a [`Program`] is used in a [`Canvas`], the runtime will call this
-    /// method for each [`Event`].
-    ///
-    /// This method can optionally return a `Message` to notify an application
-    /// of any meaningful interactions.
-    ///
-    /// By default, this method does and returns nothing.
-    ///
-    /// [`Canvas`]: crate::widget::Canvas
-    fn update(
-        &self,
-        _state: &mut Self::State,
-        _event: Event,
-        _bounds: Rectangle,
-        _cursor: Cursor,
-    ) -> (event::Status, Option<Message>) {
-        (event::Status::Ignored, None)
-    }
-
-    /// Draws the state of the [`Program`], producing a bunch of [`Geometry`].
-    ///
-    /// [`Geometry`] can be easily generated with a [`Frame`] or stored in a
-    /// [`Cache`].
-    ///
-    /// [`Frame`]: crate::widget::canvas::Frame
-    /// [`Cache`]: crate::widget::canvas::Cache
-    fn draw(
-        &self,
-        state: &Self::State,
-        renderer: &Renderer,
-        theme: &Renderer::Theme,
-        bounds: Rectangle,
-        cursor: Cursor,
-    ) -> Vec<Renderer::Geometry>;
-
-    /// Returns the current mouse interaction of the [`Program`].
-    ///
-    /// The interaction returned will be in effect even if the cursor position
-    /// is out of bounds of the program's [`Canvas`].
-    ///
-    /// [`Canvas`]: crate::widget::Canvas
-    fn mouse_interaction(
-        &self,
-        _state: &Self::State,
-        _bounds: Rectangle,
-        _cursor: Cursor,
-    ) -> mouse::Interaction {
-        mouse::Interaction::default()
-    }
-}
-
-impl<Message, Renderer, T> Program<Message, Renderer> for &T
-where
-    Renderer: iced_renderer::geometry::Renderer,
-    T: Program<Message, Renderer>,
-{
-    type State = T::State;
-
-    fn update(
-        &self,
-        state: &mut Self::State,
-        event: Event,
-        bounds: Rectangle,
-        cursor: Cursor,
-    ) -> (event::Status, Option<Message>) {
-        T::update(self, state, event, bounds, cursor)
-    }
-
-    fn draw(
-        &self,
-        state: &Self::State,
-        renderer: &Renderer,
-        theme: &Renderer::Theme,
-        bounds: Rectangle,
-        cursor: Cursor,
-    ) -> Vec<Renderer::Geometry> {
-        T::draw(self, state, renderer, theme, bounds, cursor)
-    }
-
-    fn mouse_interaction(
-        &self,
-        state: &Self::State,
-        bounds: Rectangle,
-        cursor: Cursor,
-    ) -> mouse::Interaction {
-        T::mouse_interaction(self, state, bounds, cursor)
-    }
-}
diff --git a/src/widget/qr_code.rs b/src/widget/qr_code.rs
deleted file mode 100644
index 66442d5d..00000000
--- a/src/widget/qr_code.rs
+++ /dev/null
@@ -1,300 +0,0 @@
-//! Encode and display information in a QR code.
-use crate::widget::canvas;
-use crate::Renderer;
-
-use iced_native::layout;
-use iced_native::renderer;
-use iced_native::widget::Tree;
-use iced_native::{
-    Color, Element, Layout, Length, Point, Rectangle, Size, Vector, Widget,
-};
-use thiserror::Error;
-
-const DEFAULT_CELL_SIZE: u16 = 4;
-const QUIET_ZONE: usize = 2;
-
-/// A type of matrix barcode consisting of squares arranged in a grid which
-/// can be read by an imaging device, such as a camera.
-#[derive(Debug)]
-pub struct QRCode<'a> {
-    state: &'a State,
-    dark: Color,
-    light: Color,
-    cell_size: u16,
-}
-
-impl<'a> QRCode<'a> {
-    /// Creates a new [`QRCode`] with the provided [`State`].
-    pub fn new(state: &'a State) -> Self {
-        Self {
-            cell_size: DEFAULT_CELL_SIZE,
-            dark: Color::BLACK,
-            light: Color::WHITE,
-            state,
-        }
-    }
-
-    /// Sets both the dark and light [`Color`]s of the [`QRCode`].
-    pub fn color(mut self, dark: Color, light: Color) -> Self {
-        self.dark = dark;
-        self.light = light;
-        self
-    }
-
-    /// Sets the size of the squares of the grid cell of the [`QRCode`].
-    pub fn cell_size(mut self, cell_size: u16) -> Self {
-        self.cell_size = cell_size;
-        self
-    }
-}
-
-impl<'a, Message, Theme> Widget<Message, Renderer<Theme>> for QRCode<'a> {
-    fn width(&self) -> Length {
-        Length::Shrink
-    }
-
-    fn height(&self) -> Length {
-        Length::Shrink
-    }
-
-    fn layout(
-        &self,
-        _renderer: &Renderer<Theme>,
-        _limits: &layout::Limits,
-    ) -> layout::Node {
-        let side_length = (self.state.width + 2 * QUIET_ZONE) as f32
-            * f32::from(self.cell_size);
-
-        layout::Node::new(Size::new(side_length, side_length))
-    }
-
-    fn draw(
-        &self,
-        _state: &Tree,
-        renderer: &mut Renderer<Theme>,
-        _theme: &Theme,
-        _style: &renderer::Style,
-        layout: Layout<'_>,
-        _cursor_position: Point,
-        _viewport: &Rectangle,
-    ) {
-        use iced_native::Renderer as _;
-
-        let bounds = layout.bounds();
-        let side_length = self.state.width + 2 * QUIET_ZONE;
-
-        // Reuse cache if possible
-        let geometry =
-            self.state.cache.draw(renderer, bounds.size(), |frame| {
-                // Scale units to cell size
-                frame.scale(f32::from(self.cell_size));
-
-                // Draw background
-                frame.fill_rectangle(
-                    Point::ORIGIN,
-                    Size::new(side_length as f32, side_length as f32),
-                    self.light,
-                );
-
-                // Avoid drawing on the quiet zone
-                frame.translate(Vector::new(
-                    QUIET_ZONE as f32,
-                    QUIET_ZONE as f32,
-                ));
-
-                // Draw contents
-                self.state
-                    .contents
-                    .iter()
-                    .enumerate()
-                    .filter(|(_, value)| **value == qrcode::Color::Dark)
-                    .for_each(|(index, _)| {
-                        let row = index / self.state.width;
-                        let column = index % self.state.width;
-
-                        frame.fill_rectangle(
-                            Point::new(column as f32, row as f32),
-                            Size::UNIT,
-                            self.dark,
-                        );
-                    });
-            });
-
-        let translation = Vector::new(bounds.x, bounds.y);
-
-        renderer.with_translation(translation, |renderer| {
-            renderer.draw_primitive(geometry.0);
-        });
-    }
-}
-
-impl<'a, Message, Theme> From<QRCode<'a>>
-    for Element<'a, Message, Renderer<Theme>>
-{
-    fn from(qr_code: QRCode<'a>) -> Self {
-        Self::new(qr_code)
-    }
-}
-
-/// The state of a [`QRCode`].
-///
-/// It stores the data that will be displayed.
-#[derive(Debug)]
-pub struct State {
-    contents: Vec<qrcode::Color>,
-    width: usize,
-    cache: canvas::Cache,
-}
-
-impl State {
-    /// Creates a new [`State`] with the provided data.
-    ///
-    /// This method uses an [`ErrorCorrection::Medium`] and chooses the smallest
-    /// size to display the data.
-    pub fn new(data: impl AsRef<[u8]>) -> Result<Self, Error> {
-        let encoded = qrcode::QrCode::new(data)?;
-
-        Ok(Self::build(encoded))
-    }
-
-    /// Creates a new [`State`] with the provided [`ErrorCorrection`].
-    pub fn with_error_correction(
-        data: impl AsRef<[u8]>,
-        error_correction: ErrorCorrection,
-    ) -> Result<Self, Error> {
-        let encoded = qrcode::QrCode::with_error_correction_level(
-            data,
-            error_correction.into(),
-        )?;
-
-        Ok(Self::build(encoded))
-    }
-
-    /// Creates a new [`State`] with the provided [`Version`] and
-    /// [`ErrorCorrection`].
-    pub fn with_version(
-        data: impl AsRef<[u8]>,
-        version: Version,
-        error_correction: ErrorCorrection,
-    ) -> Result<Self, Error> {
-        let encoded = qrcode::QrCode::with_version(
-            data,
-            version.into(),
-            error_correction.into(),
-        )?;
-
-        Ok(Self::build(encoded))
-    }
-
-    fn build(encoded: qrcode::QrCode) -> Self {
-        let width = encoded.width();
-        let contents = encoded.into_colors();
-
-        Self {
-            contents,
-            width,
-            cache: canvas::Cache::new(),
-        }
-    }
-}
-
-#[derive(Debug, Clone, Copy, PartialEq, Eq)]
-/// The size of a [`QRCode`].
-///
-/// The higher the version the larger the grid of cells, and therefore the more
-/// information the [`QRCode`] can carry.
-pub enum Version {
-    /// A normal QR code version. It should be between 1 and 40.
-    Normal(u8),
-
-    /// A micro QR code version. It should be between 1 and 4.
-    Micro(u8),
-}
-
-impl From<Version> for qrcode::Version {
-    fn from(version: Version) -> Self {
-        match version {
-            Version::Normal(v) => qrcode::Version::Normal(i16::from(v)),
-            Version::Micro(v) => qrcode::Version::Micro(i16::from(v)),
-        }
-    }
-}
-
-/// The error correction level.
-///
-/// It controls the amount of data that can be damaged while still being able
-/// to recover the original information.
-///
-/// A higher error correction level allows for more corrupted data.
-#[derive(Debug, Clone, Copy, PartialEq, Eq)]
-pub enum ErrorCorrection {
-    /// Low error correction. 7% of the data can be restored.
-    Low,
-    /// Medium error correction. 15% of the data can be restored.
-    Medium,
-    /// Quartile error correction. 25% of the data can be restored.
-    Quartile,
-    /// High error correction. 30% of the data can be restored.
-    High,
-}
-
-impl From<ErrorCorrection> for qrcode::EcLevel {
-    fn from(ec_level: ErrorCorrection) -> Self {
-        match ec_level {
-            ErrorCorrection::Low => qrcode::EcLevel::L,
-            ErrorCorrection::Medium => qrcode::EcLevel::M,
-            ErrorCorrection::Quartile => qrcode::EcLevel::Q,
-            ErrorCorrection::High => qrcode::EcLevel::H,
-        }
-    }
-}
-
-/// An error that occurred when building a [`State`] for a [`QRCode`].
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Error)]
-pub enum Error {
-    /// The data is too long to encode in a QR code for the chosen [`Version`].
-    #[error(
-        "The data is too long to encode in a QR code for the chosen version"
-    )]
-    DataTooLong,
-
-    /// The chosen [`Version`] and [`ErrorCorrection`] combination is invalid.
-    #[error(
-        "The chosen version and error correction level combination is invalid."
-    )]
-    InvalidVersion,
-
-    /// One or more characters in the provided data are not supported by the
-    /// chosen [`Version`].
-    #[error(
-        "One or more characters in the provided data are not supported by the \
-        chosen version"
-    )]
-    UnsupportedCharacterSet,
-
-    /// The chosen ECI designator is invalid. A valid designator should be
-    /// between 0 and 999999.
-    #[error(
-        "The chosen ECI designator is invalid. A valid designator should be \
-        between 0 and 999999."
-    )]
-    InvalidEciDesignator,
-
-    /// A character that does not belong to the character set was found.
-    #[error("A character that does not belong to the character set was found")]
-    InvalidCharacter,
-}
-
-impl From<qrcode::types::QrError> for Error {
-    fn from(error: qrcode::types::QrError) -> Self {
-        use qrcode::types::QrError;
-
-        match error {
-            QrError::DataTooLong => Error::DataTooLong,
-            QrError::InvalidVersion => Error::InvalidVersion,
-            QrError::UnsupportedCharacterSet => Error::UnsupportedCharacterSet,
-            QrError::InvalidEciDesignator => Error::InvalidEciDesignator,
-            QrError::InvalidCharacter => Error::InvalidCharacter,
-        }
-    }
-}
diff --git a/src/window.rs b/src/window.rs
index 2018053f..26239065 100644
--- a/src/window.rs
+++ b/src/window.rs
@@ -8,5 +8,6 @@ pub use icon::Icon;
 pub use position::Position;
 pub use settings::Settings;
 
-#[cfg(not(target_arch = "wasm32"))]
-pub use crate::runtime::window::*;
+pub use crate::core::window::*;
+pub use crate::native::window::*;
+pub use crate::shell::window::*;