feat(native): add Tooltip widget

graphics/src/widget.rs

@@ -20,6 +20,7 @@ pub mod scrollable;
 pub mod slider;
 pub mod svg;
 pub mod text_input;
+pub mod tooltip;
 
 mod column;
 mod row;
@@ -48,6 +49,8 @@ pub use scrollable::Scrollable;
 pub use slider::Slider;
 #[doc(no_inline)]
 pub use text_input::TextInput;
+#[doc(no_inline)]
+pub use tooltip::Tooltip;
 
 pub use column::Column;
 pub use image::Image;

graphics/src/widget/tooltip.rs

@@ -0,0 +1,37 @@
+//! Decorate content and apply alignment.
+use crate::defaults::Defaults;
+use crate::{Backend, Renderer};
+use iced_native::{Element, Layout, Point, Rectangle};
+
+/// An element decorating some content.
+///
+/// This is an alias of an `iced_native` tooltip with a default
+/// `Renderer`.
+pub type Tooltip<'a, Message, Backend> =
+    iced_native::Tooltip<'a, Message, Renderer<Backend>>;
+
+impl<B> iced_native::tooltip::Renderer for Renderer<B>
+where
+    B: Backend,
+{
+    type Style = ();
+
+    fn draw<Message>(
+        &mut self,
+        defaults: &Defaults,
+        cursor_position: Point,
+        content: &Element<'_, Message, Self>,
+        content_layout: Layout<'_>,
+        viewport: &Rectangle,
+    ) -> Self::Output {
+        let (content, mouse_interaction) = content.draw(
+            self,
+            &defaults,
+            content_layout,
+            cursor_position,
+            viewport,
+        );
+
+        (content, mouse_interaction)
+    }
+}