fix(applet): appearance

src/widget/cosmic_button.rs

@@ -0,0 +1,116 @@
+use iced::widget::Button;
+use iced_native::{Element, Widget};
+
+use super::cosmic_widget::{CosmicWidget, Layer};
+
+pub struct CosmicButton<'a, Message, Renderer: iced_native::Renderer>
+where
+    <Renderer as iced_native::Renderer>::Theme: iced_style::button::StyleSheet,
+{
+    button: Option<iced_native::widget::button::Button<'a, Message, Renderer>>,
+    layer: Layer,
+}
+
+impl<'a, Message, Renderer> Widget<Message, Renderer> for CosmicButton<'a, Message, Renderer>
+where
+    <Renderer as iced_native::Renderer>::Theme: iced_style::button::StyleSheet,
+    Renderer: iced_native::Renderer,
+    Message: Clone,
+{
+    fn width(&self) -> iced::Length {
+        if let Some(button) = &self.button {
+            Widget::width(button)
+        } else {
+            iced::Length::Shrink
+        }
+    }
+
+    fn height(&self) -> iced::Length {
+        if let Some(button) = &self.button {
+            Widget::height(button)
+        } else {
+            iced::Length::Shrink
+        }
+    }
+
+    fn layout(
+        &self,
+        renderer: &Renderer,
+        limits: &iced_native::layout::Limits,
+    ) -> iced_native::layout::Node {
+        if let Some(button) = &self.button {
+            Widget::layout(button, renderer, limits)
+        } else {
+            iced_native::layout::Node::new(limits.max())
+        }
+    }
+
+    fn draw(
+        &self,
+        state: &iced_native::widget::Tree,
+        renderer: &mut Renderer,
+        theme: &<Renderer as iced_native::Renderer>::Theme,
+        style: &iced_native::renderer::Style,
+        layout: iced_native::Layout<'_>,
+        cursor_position: iced::Point,
+        viewport: &iced::Rectangle,
+    ) {
+        if let Some(button) = &self.button {
+            Widget::draw(
+                button,
+                state,
+                renderer,
+                theme,
+                style,
+                layout,
+                cursor_position,
+                viewport,
+            )
+        }
+    }
+}
+
+impl<'a, Message, Renderer> CosmicWidget<Message, Renderer> for CosmicButton<'a, Message, Renderer>
+where
+    <Renderer as iced_native::Renderer>::Theme: iced_style::button::StyleSheet,
+    Renderer: iced_native::Renderer,
+    Message: Clone,
+{
+    fn set_layer(&mut self, layer: Layer) {
+        self.layer = layer;
+    }
+}
+
+impl<'a, Message, Renderer> CosmicButton<'a, Message, Renderer>
+where
+    <Renderer as iced_native::Renderer>::Theme: iced_style::button::StyleSheet,
+    Renderer: iced_native::Renderer,
+    Message: Clone,
+{
+    #[must_use]
+    /// will apply layer to the widget and all of its children
+    pub fn with_cosmic_child<
+        T: CosmicWidget<Message, Renderer> + Into<Element<'a, Message, Renderer>>,
+    >(
+        self,
+        mut child: T,
+    ) -> Self {
+        child.set_layer(self.child_layer());
+        Self {
+            layer: self.layer,
+            button: Some(Button::new(child.into())),
+        }
+    }
+
+    #[must_use]
+    /// will NOT apply layer to the widget and all of its children
+    pub fn with_child<T: Widget<Message, Renderer> + Into<Element<'a, Message, Renderer>>>(
+        self,
+        child: T,
+    ) -> Self {
+        Self {
+            layer: self.layer,
+            button: Some(Button::new(child.into())),
+        }
+    }
+}