Implement theme styling for `Radio`

10 files changed, 85 insertions, 156 deletions

diff --git a/examples/scrollable/src/main.rs b/examples/scrollable/src/main.rs
index 8e027504..e49aa63b 100644
--- a/examples/scrollable/src/main.rs
+++ b/examples/scrollable/src/main.rs
@@ -69,15 +69,12 @@ impl Sandbox for ScrollableDemo {
         let choose_theme = style::Theme::ALL.iter().fold(
             Column::new().spacing(10).push(Text::new("Choose a theme:")),
             |column, option| {
-                column.push(
-                    Radio::new(
-                        *option,
-                        format!("{:?}", option),
-                        Some(*theme),
-                        Message::ThemeChanged,
-                    )
-                    .style(*theme),
-                )
+                column.push(Radio::new(
+                    *option,
+                    format!("{:?}", option),
+                    Some(*theme),
+                    Message::ThemeChanged,
+                ))
             },
         );
 
diff --git a/examples/scrollable/src/style.rs b/examples/scrollable/src/style.rs
index 0ed38b00..0581a8c8 100644
--- a/examples/scrollable/src/style.rs
+++ b/examples/scrollable/src/style.rs
@@ -1,4 +1,4 @@
-use iced::{container, radio, rule, scrollable};
+use iced::{container, rule, scrollable};
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub enum Theme {
@@ -25,15 +25,6 @@ impl<'a> From<Theme> for Box<dyn container::StyleSheet + 'a> {
     }
 }
 
-impl<'a> From<Theme> for Box<dyn radio::StyleSheet + 'a> {
-    fn from(theme: Theme) -> Self {
-        match theme {
-            Theme::Light => Default::default(),
-            Theme::Dark => dark::Radio.into(),
-        }
-    }
-}
-
 impl<'a> From<Theme> for Box<dyn scrollable::StyleSheet + 'a> {
     fn from(theme: Theme) -> Self {
         match theme {
@@ -53,7 +44,7 @@ impl From<Theme> for Box<dyn rule::StyleSheet> {
 }
 
 mod dark {
-    use iced::{container, radio, rule, scrollable, Color};
+    use iced::{container, rule, scrollable, Color};
 
     const BACKGROUND: Color = Color::from_rgb(
         0x36 as f32 / 255.0,
@@ -73,12 +64,6 @@ mod dark {
         0xE9 as f32 / 255.0,
     );
 
-    const ACTIVE: Color = Color::from_rgb(
-        0x72 as f32 / 255.0,
-        0x89 as f32 / 255.0,
-        0xDA as f32 / 255.0,
-    );
-
     const SCROLLBAR: Color = Color::from_rgb(
         0x2E as f32 / 255.0,
         0x33 as f32 / 255.0,
@@ -107,27 +92,6 @@ mod dark {
         }
     }
 
-    pub struct Radio;
-
-    impl radio::StyleSheet for Radio {
-        fn active(&self) -> radio::Style {
-            radio::Style {
-                background: SURFACE.into(),
-                dot_color: ACTIVE,
-                border_width: 1.0,
-                border_color: ACTIVE,
-                text_color: None,
-            }
-        }
-
-        fn hovered(&self) -> radio::Style {
-            radio::Style {
-                background: Color { a: 0.5, ..SURFACE }.into(),
-                ..self.active()
-            }
-        }
-    }
-
     pub struct Scrollable;
 
     impl scrollable::StyleSheet for Scrollable {
diff --git a/examples/styling/src/main.rs b/examples/styling/src/main.rs
index 82876cb4..27b3ead4 100644
--- a/examples/styling/src/main.rs
+++ b/examples/styling/src/main.rs
@@ -61,15 +61,12 @@ impl Sandbox for Styling {
         let choose_theme = style::Theme::ALL.iter().fold(
             Column::new().spacing(10).push(Text::new("Choose a theme:")),
             |column, theme| {
-                column.push(
-                    Radio::new(
-                        *theme,
-                        format!("{:?}", theme),
-                        Some(self.theme),
-                        Message::ThemeChanged,
-                    )
-                    .style(self.theme),
-                )
+                column.push(Radio::new(
+                    *theme,
+                    format!("{:?}", theme),
+                    Some(self.theme),
+                    Message::ThemeChanged,
+                ))
             },
         );
 
@@ -158,7 +155,7 @@ impl Sandbox for Styling {
 
 mod style {
     use iced::{
-        checkbox, container, progress_bar, radio, rule, scrollable, text_input,
+        checkbox, container, progress_bar, rule, scrollable, text_input,
         toggler,
     };
 
@@ -187,15 +184,6 @@ mod style {
         }
     }
 
-    impl<'a> From<Theme> for Box<dyn radio::StyleSheet + 'a> {
-        fn from(theme: Theme) -> Self {
-            match theme {
-                Theme::Light => Default::default(),
-                Theme::Dark => dark::Radio.into(),
-            }
-        }
-    }
-
     impl<'a> From<Theme> for Box<dyn text_input::StyleSheet + 'a> {
         fn from(theme: Theme) -> Self {
             match theme {
@@ -252,8 +240,8 @@ mod style {
 
     mod dark {
         use iced::{
-            checkbox, container, progress_bar, radio, rule, scrollable,
-            text_input, toggler, Color,
+            checkbox, container, progress_bar, rule, scrollable, text_input,
+            toggler, Color,
         };
 
         const SURFACE: Color = Color::from_rgb(
@@ -292,27 +280,6 @@ mod style {
             }
         }
 
-        pub struct Radio;
-
-        impl radio::StyleSheet for Radio {
-            fn active(&self) -> radio::Style {
-                radio::Style {
-                    background: SURFACE.into(),
-                    dot_color: ACTIVE,
-                    border_width: 1.0,
-                    border_color: ACTIVE,
-                    text_color: None,
-                }
-            }
-
-            fn hovered(&self) -> radio::Style {
-                radio::Style {
-                    background: Color { a: 0.5, ..SURFACE }.into(),
-                    ..self.active()
-                }
-            }
-        }
-
         pub struct TextInput;
 
         impl text_input::StyleSheet for TextInput {
diff --git a/native/src/widget/radio.rs b/native/src/widget/radio.rs
index 5d936eaf..de7e2735 100644
--- a/native/src/widget/radio.rs
+++ b/native/src/widget/radio.rs
@@ -12,14 +12,14 @@ use crate::{
     Shell, Widget,
 };
 
-pub use iced_style::radio::{Style, StyleSheet};
+pub use iced_style::radio::{Appearance, StyleSheet};
 
 /// A circular button representing a choice.
 ///
 /// # Example
 /// ```
-/// # type Radio<'a, Message> =
-/// #     iced_native::widget::Radio<'a, Message, iced_native::renderer::Null>;
+/// # type Radio<Message> =
+/// #     iced_native::widget::Radio<Message, iced_native::renderer::Null>;
 /// #
 /// #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 /// pub enum Choice {
@@ -41,7 +41,11 @@ pub use iced_style::radio::{Style, StyleSheet};
 ///
 /// ![Radio buttons drawn by `iced_wgpu`](https://github.com/iced-rs/iced/blob/7760618fb112074bc40b148944521f312152012a/docs/images/radio.png?raw=true)
 #[allow(missing_debug_implementations)]
-pub struct Radio<'a, Message, Renderer: text::Renderer> {
+pub struct Radio<Message, Renderer>
+where
+    Renderer: text::Renderer,
+    Renderer::Theme: StyleSheet,
+{
     is_selected: bool,
     on_click: Message,
     label: String,
@@ -50,12 +54,14 @@ pub struct Radio<'a, Message, Renderer: text::Renderer> {
     spacing: u16,
     text_size: Option<u16>,
     font: Renderer::Font,
-    style_sheet: Box<dyn StyleSheet + 'a>,
+    style: <Renderer::Theme as StyleSheet>::Style,
 }
 
-impl<'a, Message, Renderer: text::Renderer> Radio<'a, Message, Renderer>
+impl<Message, Renderer> Radio<Message, Renderer>
 where
     Message: Clone,
+    Renderer: text::Renderer,
+    Renderer::Theme: StyleSheet,
 {
     /// The default size of a [`Radio`] button.
     pub const DEFAULT_SIZE: u16 = 28;
@@ -90,7 +96,7 @@ where
             spacing: Self::DEFAULT_SPACING, //15
             text_size: None,
             font: Default::default(),
-            style_sheet: Default::default(),
+            style: Default::default(),
         }
     }
 
@@ -127,18 +133,18 @@ where
     /// Sets the style of the [`Radio`] button.
     pub fn style(
         mut self,
-        style_sheet: impl Into<Box<dyn StyleSheet + 'a>>,
+        style: impl Into<<Renderer::Theme as StyleSheet>::Style>,
     ) -> Self {
-        self.style_sheet = style_sheet.into();
+        self.style = style.into();
         self
     }
 }
 
-impl<'a, Message, Renderer> Widget<Message, Renderer>
-    for Radio<'a, Message, Renderer>
+impl<Message, Renderer> Widget<Message, Renderer> for Radio<Message, Renderer>
 where
     Message: Clone,
     Renderer: text::Renderer,
+    Renderer::Theme: StyleSheet,
 {
     fn width(&self) -> Length {
         self.width
@@ -223,9 +229,9 @@ where
         let mut children = layout.children();
 
         let custom_style = if is_mouse_over {
-            self.style_sheet.hovered()
+            theme.hovered(self.style)
         } else {
-            self.style_sheet.active()
+            theme.active(self.style)
         };
 
         {
@@ -281,15 +287,14 @@ where
     }
 }
 
-impl<'a, Message, Renderer> From<Radio<'a, Message, Renderer>>
+impl<'a, Message, Renderer> From<Radio<Message, Renderer>>
     for Element<'a, Message, Renderer>
 where
     Message: 'a + Clone,
     Renderer: 'a + text::Renderer,
+    Renderer::Theme: StyleSheet,
 {
-    fn from(
-        radio: Radio<'a, Message, Renderer>,
-    ) -> Element<'a, Message, Renderer> {
+    fn from(radio: Radio<Message, Renderer>) -> Element<'a, Message, Renderer> {
         Element::new(radio)
     }
 }
diff --git a/pure/src/helpers.rs b/pure/src/helpers.rs
index d8741b09..159256ed 100644
--- a/pure/src/helpers.rs
+++ b/pure/src/helpers.rs
@@ -100,15 +100,16 @@ where
 /// Creates a new [`Radio`].
 ///
 /// [`Radio`]: widget::Radio
-pub fn radio<'a, Message, Renderer, V>(
+pub fn radio<Message, Renderer, V>(
     label: impl Into<String>,
     value: V,
     selected: Option<V>,
     on_click: impl FnOnce(V) -> Message,
-) -> widget::Radio<'a, Message, Renderer>
+) -> widget::Radio<Message, Renderer>
 where
     Message: Clone,
     Renderer: iced_native::text::Renderer,
+    Renderer::Theme: widget::radio::StyleSheet,
     V: Copy + Eq,
 {
     widget::Radio::new(value, label, selected, on_click)
diff --git a/pure/src/widget/radio.rs b/pure/src/widget/radio.rs
index c92c8dbc..9a8885e0 100644
--- a/pure/src/widget/radio.rs
+++ b/pure/src/widget/radio.rs
@@ -9,13 +9,13 @@ use iced_native::renderer;
 use iced_native::text;
 use iced_native::{Clipboard, Length, Point, Rectangle, Shell};
 
-pub use iced_native::widget::radio::{Radio, Style, StyleSheet};
+pub use iced_native::widget::radio::{Appearance, Radio, StyleSheet};
 
-impl<'a, Message, Renderer> Widget<Message, Renderer>
-    for Radio<'a, Message, Renderer>
+impl<Message, Renderer> Widget<Message, Renderer> for Radio<Message, Renderer>
 where
     Message: Clone,
     Renderer: text::Renderer,
+    Renderer::Theme: StyleSheet,
 {
     fn width(&self) -> Length {
         <Self as iced_native::Widget<Message, Renderer>>::width(self)
@@ -96,10 +96,11 @@ where
 }
 
 impl<'a, Message, Renderer> Into<Element<'a, Message, Renderer>>
-    for Radio<'a, Message, Renderer>
+    for Radio<Message, Renderer>
 where
     Message: 'a + Clone,
     Renderer: text::Renderer + 'a,
+    Renderer::Theme: StyleSheet,
 {
     fn into(self) -> Element<'a, Message, Renderer> {
         Element::new(self)
diff --git a/src/pure/widget.rs b/src/pure/widget.rs
index e91cf56a..04975c0d 100644
--- a/src/pure/widget.rs
+++ b/src/pure/widget.rs
@@ -90,11 +90,11 @@ pub mod pick_list {
 
 pub mod radio {
     //! Create choices using radio buttons.
-    pub use iced_pure::widget::radio::{Style, StyleSheet};
+    pub use iced_pure::widget::radio::{Appearance, StyleSheet};
 
     /// A circular button representing a choice.
-    pub type Radio<'a, Message, Theme> =
-        iced_pure::widget::Radio<'a, Message, crate::Renderer<Theme>>;
+    pub type Radio<Message, Theme> =
+        iced_pure::widget::Radio<Message, crate::Renderer<Theme>>;
 }
 
 pub mod scrollable {
diff --git a/src/widget.rs b/src/widget.rs
index 51a498b0..2f3600b6 100644
--- a/src/widget.rs
+++ b/src/widget.rs
@@ -106,11 +106,11 @@ pub mod pick_list {
 
 pub mod radio {
     //! Create choices using radio buttons.
-    pub use iced_native::widget::radio::{Style, StyleSheet};
+    pub use iced_native::widget::radio::{Appearance, StyleSheet};
 
     /// A circular button representing a choice.
-    pub type Radio<'a, Message, Theme> =
-        iced_native::widget::Radio<'a, Message, crate::Renderer<Theme>>;
+    pub type Radio<Message, Theme> =
+        iced_native::widget::Radio<Message, crate::Renderer<Theme>>;
 }
 
 pub mod scrollable {
diff --git a/style/src/radio.rs b/style/src/radio.rs
index dab76ad8..a4d4a83b 100644
--- a/style/src/radio.rs
+++ b/style/src/radio.rs
@@ -3,7 +3,7 @@ use iced_core::{Background, Color};
 
 /// The appearance of a radio button.
 #[derive(Debug, Clone, Copy)]
-pub struct Style {
+pub struct Appearance {
     pub background: Background,
     pub dot_color: Color,
     pub border_width: f32,
@@ -13,43 +13,9 @@ pub struct Style {
 
 /// A set of rules that dictate the style of a radio button.
 pub trait StyleSheet {
-    fn active(&self) -> Style;
+    type Style: Default + Copy;
 
-    fn hovered(&self) -> Style;
-}
-
-struct Default;
-
-impl StyleSheet for Default {
-    fn active(&self) -> Style {
-        Style {
-            background: Background::Color(Color::from_rgb(0.95, 0.95, 0.95)),
-            dot_color: Color::from_rgb(0.3, 0.3, 0.3),
-            border_width: 1.0,
-            border_color: Color::from_rgb(0.6, 0.6, 0.6),
-            text_color: None,
-        }
-    }
-
-    fn hovered(&self) -> Style {
-        Style {
-            background: Background::Color(Color::from_rgb(0.90, 0.90, 0.90)),
-            ..self.active()
-        }
-    }
-}
-
-impl<'a> std::default::Default for Box<dyn StyleSheet + 'a> {
-    fn default() -> Self {
-        Box::new(Default)
-    }
-}
+    fn active(&self, style: Self::Style) -> Appearance;
 
-impl<'a, T> From<T> for Box<dyn StyleSheet + 'a>
-where
-    T: StyleSheet + 'a,
-{
-    fn from(style_sheet: T) -> Self {
-        Box::new(style_sheet)
-    }
+    fn hovered(&self, style: Self::Style) -> Appearance;
 }
diff --git a/style/src/theme.rs b/style/src/theme.rs
index c9fae3c2..e3b151aa 100644
--- a/style/src/theme.rs
+++ b/style/src/theme.rs
@@ -4,6 +4,7 @@ pub use self::palette::Palette;
 
 use crate::application;
 use crate::button;
+use crate::radio;
 use crate::slider;
 
 use iced_core::{Background, Color};
@@ -165,3 +166,30 @@ impl slider::StyleSheet for Theme {
         }
     }
 }
+
+impl radio::StyleSheet for Theme {
+    type Style = ();
+
+    fn active(&self, _style: Self::Style) -> radio::Appearance {
+        let palette = self.extended_palette();
+
+        radio::Appearance {
+            background: Color::TRANSPARENT.into(),
+            dot_color: palette.primary.strong.color.into(),
+            border_width: 1.0,
+            border_color: palette.primary.strong.color,
+            text_color: None,
+        }
+    }
+
+    fn hovered(&self, style: Self::Style) -> radio::Appearance {
+        let active = self.active(style);
+        let palette = self.extended_palette();
+
+        radio::Appearance {
+            dot_color: palette.primary.weak.text.into(),
+            background: palette.primary.weak.color.into(),
+            ..active
+        }
+    }
+}