Draft widget operations

native/src/widget.rs

@@ -17,6 +17,7 @@ pub mod column;
 pub mod container;
 pub mod helpers;
 pub mod image;
+pub mod operation;
 pub mod pane_grid;
 pub mod pick_list;
 pub mod progress_bar;
@@ -26,6 +27,7 @@ pub mod rule;
 pub mod scrollable;
 pub mod slider;
 pub mod space;
+pub mod state;
 pub mod svg;
 pub mod text;
 pub mod text_input;
@@ -33,6 +35,9 @@ pub mod toggler;
 pub mod tooltip;
 pub mod tree;
 
+mod action;
+mod id;
+
 #[doc(no_inline)]
 pub use button::Button;
 #[doc(no_inline)]
@@ -76,6 +81,10 @@ pub use tooltip::Tooltip;
 #[doc(no_inline)]
 pub use tree::Tree;
 
+pub use action::Action;
+pub use id::Id;
+pub use operation::Operation;
+
 use crate::event::{self, Event};
 use crate::layout;
 use crate::mouse;
@@ -159,6 +168,14 @@ where
     /// Reconciliates the [`Widget`] with the provided [`Tree`].
     fn diff(&self, _tree: &mut Tree) {}
 
+    /// Applies an [`Operation`] to the [`Widget`].
+    fn operate(
+        &self,
+        _layout: Layout<'_>,
+        _operation: &mut dyn Operation<Message>,
+    ) {
+    }
+
     /// Processes a runtime [`Event`].
     ///
     /// By default, it does nothing.