Reintroduce Box for style_sheet in Container

native/src/widget/container.rs

@@ -28,7 +28,7 @@ pub struct Container<'a, Message, Renderer> {
     max_height: u32,
     horizontal_alignment: alignment::Horizontal,
     vertical_alignment: alignment::Vertical,
-    style_sheet: &'a dyn StyleSheet,
+    style_sheet: Box<dyn StyleSheet + 'a>,
     content: Element<'a, Message, Renderer>,
 }
 
@@ -109,8 +109,11 @@ where
     }
 
     /// Sets the style of the [`Container`].
-    pub fn style(mut self, style_sheet: &'a dyn StyleSheet) -> Self {
-        self.style_sheet = style_sheet;
+    pub fn style(
+        mut self,
+        style_sheet: impl Into<Box<dyn StyleSheet + 'a>>,
+    ) -> Self {
+        self.style_sheet = style_sheet.into();
         self
     }
 }

native/src/widget/pane_grid/content.rs

@@ -14,7 +14,7 @@ use crate::{Clipboard, Element, Hasher, Layout, Point, Rectangle, Size};
 pub struct Content<'a, Message, Renderer> {
     title_bar: Option<TitleBar<'a, Message, Renderer>>,
     body: Element<'a, Message, Renderer>,
-    style_sheet: &'a dyn container::StyleSheet,
+    style_sheet: Box<dyn container::StyleSheet + 'a>,
 }
 
 impl<'a, Message, Renderer> Content<'a, Message, Renderer>
@@ -40,8 +40,11 @@ where
     }
 
     /// Sets the style of the [`Content`].
-    pub fn style(mut self, style_sheet: &'a dyn container::StyleSheet) -> Self {
-        self.style_sheet = style_sheet;
+    pub fn style(
+        mut self,
+        style_sheet: impl Into<Box<dyn container::StyleSheet + 'a>>,
+    ) -> Self {
+        self.style_sheet = style_sheet.into();
         self
     }
 }

native/src/widget/pane_grid/title_bar.rs

@@ -17,7 +17,7 @@ pub struct TitleBar<'a, Message, Renderer> {
     controls: Option<Element<'a, Message, Renderer>>,
     padding: Padding,
     always_show_controls: bool,
-    style_sheet: &'a dyn container::StyleSheet,
+    style_sheet: Box<dyn container::StyleSheet + 'a>,
 }
 
 impl<'a, Message, Renderer> TitleBar<'a, Message, Renderer>
@@ -54,8 +54,11 @@ where
     }
 
     /// Sets the style of the [`TitleBar`].
-    pub fn style(mut self, style: &'a dyn container::StyleSheet) -> Self {
-        self.style_sheet = style;
+    pub fn style(
+        mut self,
+        style: impl Into<Box<dyn container::StyleSheet + 'a>>,
+    ) -> Self {
+        self.style_sheet = style.into();
         self
     }
 

native/src/widget/tooltip.rs

@@ -20,7 +20,7 @@ pub struct Tooltip<'a, Message, Renderer: text::Renderer> {
     content: Element<'a, Message, Renderer>,
     tooltip: Text<Renderer>,
     position: Position,
-    style_sheet: &'a dyn container::StyleSheet,
+    style_sheet: Box<dyn container::StyleSheet + 'a>,
     gap: u16,
     padding: u16,
 }
@@ -77,8 +77,11 @@ where
     }
 
     /// Sets the style of the [`Tooltip`].
-    pub fn style(mut self, style_sheet: &'a dyn container::StyleSheet) -> Self {
-        self.style_sheet = style_sheet;
+    pub fn style(
+        mut self,
+        style_sheet: impl Into<Box<dyn container::StyleSheet + 'a>>,
+    ) -> Self {
+        self.style_sheet = style_sheet.into();
         self
     }
 }