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-rw-r--r--widget/src/lazy/component.rs21
1 files changed, 17 insertions, 4 deletions
diff --git a/widget/src/lazy/component.rs b/widget/src/lazy/component.rs
index edecbdaa..a512e0de 100644
--- a/widget/src/lazy/component.rs
+++ b/widget/src/lazy/component.rs
@@ -62,6 +62,17 @@ pub trait Component<Message, Theme = crate::Theme, Renderer = crate::Renderer> {
_operation: &mut dyn widget::Operation<Message>,
) {
}
+
+ /// Returns a [`Size`] hint for laying out the [`Component`].
+ ///
+ /// This hint may be used by some widget containers to adjust their sizing strategy
+ /// during construction.
+ fn size_hint(&self) -> Size<Length> {
+ Size {
+ width: Length::Shrink,
+ height: Length::Shrink,
+ }
+ }
}
struct Tag<T>(T);
@@ -255,10 +266,12 @@ where
}
fn size_hint(&self) -> Size<Length> {
- Size {
- width: Length::Shrink,
- height: Length::Shrink,
- }
+ self.state
+ .borrow()
+ .as_ref()
+ .expect("Borrow instance state")
+ .borrow_component()
+ .size_hint()
}
fn layout(