From daa3f3324d001b634f73779423da605c213e7626 Mon Sep 17 00:00:00 2001
From: Héctor Ramón Jiménez <hector0193@gmail.com>
Date: Sat, 14 Jan 2023 03:20:30 +0100
Subject: Introduce `custom` method to `widget::Operation` trait

This allows users to write operations for their custom widgets.
---
 native/src/widget/action.rs    | 9 +++++++++
 native/src/widget/operation.rs | 4 ++++
 2 files changed, 13 insertions(+)

(limited to 'native/src/widget')

diff --git a/native/src/widget/action.rs b/native/src/widget/action.rs
index 9aa79dec..1e21ff38 100644
--- a/native/src/widget/action.rs
+++ b/native/src/widget/action.rs
@@ -3,6 +3,7 @@ use crate::widget::Id;
 
 use iced_futures::MaybeSend;
 
+use std::any::Any;
 use std::rc::Rc;
 
 /// An operation to be performed on the widget tree.
@@ -84,6 +85,10 @@ where
             ) {
                 self.operation.focusable(state, id);
             }
+
+            fn custom(&mut self, state: &mut dyn Any, id: Option<&Id>) {
+                self.operation.custom(state, id);
+            }
         }
 
         let Self { operation, .. } = self;
@@ -118,6 +123,10 @@ where
         self.operation.text_input(state, id);
     }
 
+    fn custom(&mut self, state: &mut dyn Any, id: Option<&Id>) {
+        self.operation.custom(state, id);
+    }
+
     fn finish(&self) -> operation::Outcome<B> {
         match self.operation.finish() {
             operation::Outcome::None => operation::Outcome::None,
diff --git a/native/src/widget/operation.rs b/native/src/widget/operation.rs
index a0aa4117..73e6a6b0 100644
--- a/native/src/widget/operation.rs
+++ b/native/src/widget/operation.rs
@@ -9,6 +9,7 @@ pub use text_input::TextInput;
 
 use crate::widget::Id;
 
+use std::any::Any;
 use std::fmt;
 
 /// A piece of logic that can traverse the widget tree of an application in
@@ -33,6 +34,9 @@ pub trait Operation<T> {
     /// Operates on a widget that has text input.
     fn text_input(&mut self, _state: &mut dyn TextInput, _id: Option<&Id>) {}
 
+    /// Operates on a custom widget with some state.
+    fn custom(&mut self, _state: &mut dyn Any, _id: Option<&Id>) {}
+
     /// Finishes the [`Operation`] and returns its [`Outcome`].
     fn finish(&self) -> Outcome<T> {
         Outcome::None
-- 
cgit