lib: Introduce BoxedAny traits

src/ui/widget.rs

@@ -144,16 +144,9 @@ pub trait Properties {
         Box::new(self)
     }
 
-    fn from_boxed_any(any: Box<dyn Any>) -> Option<Self>
-    where
-        Self: Sized + Clone + 'static,
-    {
-        any.downcast_ref::<Self>().cloned()
-    }
-
     fn from_callback<S>(callback: Option<UpdateCallback<S>>, state: &S) -> Option<Self>
     where
-        Self: Sized + Clone + 'static,
+        Self: Sized + Clone + 'static + BoxedAny,
     {
         callback
             .map(|callback| (callback)(state))
@@ -161,18 +154,19 @@ pub trait Properties {
     }
 }
 
-pub trait WidgetState {
-    fn to_boxed_any(self) -> Box<dyn Any>
-    where
-        Self: Sized + Clone + 'static,
-    {
-        Box::new(self)
-    }
-
+/// Provide default implementations for conversions to and from `Box<dyn Any>`.
+pub trait BoxedAny {
     fn from_boxed_any(any: Box<dyn Any>) -> Option<Self>
     where
         Self: Sized + Clone + 'static,
     {
         any.downcast_ref::<Self>().cloned()
     }
-}
+
+    fn to_boxed_any(self) -> Box<dyn Any>
+    where
+        Self: Sized + Clone + 'static,
+    {
+        Box::new(self)
+    }
+}

src/ui/widget/container.rs

@@ -10,7 +10,7 @@ use ratatui::widgets::{Block, BorderType, Borders, Row};
 use crate::ui::ext::{FooterBlock, FooterBlockType, HeaderBlock};
 use crate::ui::theme::style;
 
-use super::{BaseView, BoxedWidget, Properties, RenderProps, Widget, WidgetState};
+use super::{BaseView, BoxedAny, BoxedWidget, Properties, RenderProps, Widget};
 
 #[derive(Clone, Debug)]
 pub struct Column<'a> {
@@ -65,6 +65,7 @@ impl<'a> Default for HeaderProps<'a> {
 }
 
 impl<'a: 'static> Properties for HeaderProps<'a> {}
+impl<'a: 'static> BoxedAny for HeaderProps<'a> {}
 
 pub struct Header<'a: 'static, S, A> {
     /// Internal props
@@ -205,6 +206,7 @@ impl<'a> Default for FooterProps<'a> {
 }
 
 impl<'a: 'static> Properties for FooterProps<'a> {}
+impl<'a: 'static> BoxedAny for FooterProps<'a> {}
 
 pub struct Footer<'a, S, A> {
     /// Internal props
@@ -325,6 +327,7 @@ impl ContainerProps {
 }
 
 impl Properties for ContainerProps {}
+impl BoxedAny for ContainerProps {}
 
 pub struct Container<S, A> {
     /// Internal base
@@ -459,7 +462,7 @@ pub struct SectionGroupState {
     focus: Option<usize>,
 }
 
-impl WidgetState for SectionGroupState {}
+impl BoxedAny for SectionGroupState {}
 
 #[derive(Clone, Default)]
 pub struct SectionGroupProps {
@@ -475,6 +478,7 @@ impl SectionGroupProps {
 }
 
 impl Properties for SectionGroupProps {}
+impl BoxedAny for SectionGroupProps {}
 
 pub struct SectionGroup<S, A> {
     /// Internal base

src/ui/widget/input.rs

@@ -6,7 +6,7 @@ use ratatui::layout::{Constraint, Layout};
 use ratatui::style::Stylize;
 use ratatui::text::{Line, Span};
 
-use super::{BaseView, Properties, RenderProps, Widget, WidgetState};
+use super::{BaseView, BoxedAny, Properties, RenderProps, Widget};
 
 #[derive(Clone)]
 pub struct TextFieldProps {
@@ -54,7 +54,7 @@ pub struct TextFieldState {
     pub cursor_position: usize,
 }
 
-impl WidgetState for TextFieldState {}
+impl BoxedAny for TextFieldState {}
 
 pub struct TextField<S, A> {
     /// Internal base

src/ui/widget/list.rs

@@ -13,7 +13,8 @@ use ratatui::widgets::TableState;
 use crate::ui::theme::style;
 use crate::ui::{layout, span};
 
-use super::{container::Column, BaseView, Properties, RenderProps, ToRow, Widget, WidgetState};
+use super::BoxedAny;
+use super::{container::Column, BaseView, Properties, RenderProps, ToRow, Widget};
 
 #[derive(Clone, Debug)]
 pub struct TableProps<'a, R, const W: usize>
@@ -83,7 +84,9 @@ where
 }
 
 impl<'a: 'static, R, const W: usize> Properties for TableProps<'a, R, W> where R: ToRow<W> + 'static {}
-impl WidgetState for TableState {}
+impl<'a: 'static, R, const W: usize> BoxedAny for TableProps<'a, R, W> where R: ToRow<W> + 'static {}
+
+impl BoxedAny for TableState {}
 
 pub struct Table<'a, S, A, R, const W: usize>
 where

src/ui/widget/text.rs

@@ -5,7 +5,7 @@ use termion::event::Key;
 use ratatui::layout::{Constraint, Layout};
 use ratatui::text::Text;
 
-use super::{BaseView, Properties, RenderProps, Widget, WidgetState};
+use super::{BaseView, BoxedAny, Properties, RenderProps, Widget};
 
 #[derive(Clone)]
 pub struct ParagraphProps<'a> {
@@ -41,6 +41,7 @@ impl<'a> Default for ParagraphProps<'a> {
 }
 
 impl<'a: 'static> Properties for ParagraphProps<'a> {}
+impl<'a: 'static> BoxedAny for ParagraphProps<'a> {}
 
 #[derive(Clone)]
 pub struct ParagraphState {
@@ -50,7 +51,7 @@ pub struct ParagraphState {
     pub progress: usize,
 }
 
-impl WidgetState for ParagraphState {}
+impl BoxedAny for ParagraphState {}
 
 pub struct Paragraph<'a, S, A> {
     /// Internal base

src/ui/widget/window.rs

@@ -12,7 +12,7 @@ use ratatui::widgets::Row;
 
 use crate::ui::theme::style;
 
-use super::{BaseView, BoxedWidget, Properties, RenderProps, Widget};
+use super::{BaseView, BoxedAny, BoxedWidget, Properties, RenderProps, Widget};
 
 #[derive(Clone)]
 pub struct WindowProps<Id> {
@@ -33,6 +33,7 @@ impl<Id> Default for WindowProps<Id> {
 }
 
 impl<Id> Properties for WindowProps<Id> {}
+impl<Id> BoxedAny for WindowProps<Id> {}
 
 pub struct Window<S, A, Id> {
     /// Internal base
@@ -152,6 +153,7 @@ impl Default for ShortcutsProps {
 }
 
 impl Properties for ShortcutsProps {}
+impl BoxedAny for ShortcutsProps {}
 
 pub struct Shortcuts<S, A> {
     /// Internal properties