fix: multiwindow a11y fixes

core/src/window/id.rs

@@ -11,8 +11,16 @@ pub struct Id(u64);
 static COUNT: AtomicU64 = AtomicU64::new(1);
 
 impl Id {
+    /// No window will match this Id
+    pub const NONE: Id = Id(0);
+
     /// Creates a new unique window [`Id`].
     pub fn unique() -> Id {
-        Id(COUNT.fetch_add(1, atomic::Ordering::Relaxed))
+        let id = Id(COUNT.fetch_add(1, atomic::Ordering::Relaxed));
+        if id.0 == 0 {
+            Id(COUNT.fetch_add(1, atomic::Ordering::Relaxed))
+        } else {
+            id
+        }
     }
 }

examples/multi_window/Cargo.toml

@@ -7,6 +7,8 @@ publish = false
 
 [dependencies]
 iced = { path = "../..", features = [
+    "a11y",
+    "tokio",
     "debug",
     "winit",
     "multi-window",

examples/multi_window/src/main.rs

@@ -3,6 +3,7 @@ use iced::widget::{
     text_input,
 };
 use iced::window;
+use iced::Length::Fill;
 use iced::{
     id::Id, Alignment, Center, Element, Length, Point, Settings, Subscription,
     Task, Theme, Vector,
@@ -28,7 +29,7 @@ struct Window {
     scale_input: String,
     current_scale: f64,
     theme: Theme,
-    input_id: Id,
+    input_id: text_input::Id,
 }
 
 #[derive(Debug, Clone)]
@@ -166,7 +167,7 @@ impl Window {
             scale_input: "1.0".to_string(),
             current_scale: 1.0,
             theme: Theme::ALL[count % Theme::ALL.len()].clone(),
-            input_id: Id::unique(),
+            input_id: text_input::Id::unique(),
         }
     }
 

widget/src/button.rs

@@ -382,10 +382,10 @@ where
                         action,
                         iced_accessibility::accesskit::Action::Default
                     ))
-                .then(|| self.on_press.clone())
+                .then(|| self.on_press.as_ref())
                 {
                     state.is_pressed = false;
-                    shell.publish(on_press);
+                    shell.publish(on_press.get());
                 }
                 return event::Status::Captured;
             }

winit/src/application.rs

@@ -625,10 +625,7 @@ async fn run_instance<A, E, C>(
     let mut viewport_version = state.viewport_version();
     let physical_size = state.physical_size();
 
-    let mut clipboard = Clipboard::connect(
-        &window,
-        crate::proxy::Proxy::new(proxy.raw.clone()).0,
-    );
+    let mut clipboard = Clipboard::connect(&window, proxy.clone());
     let mut cache = user_interface::Cache::default();
 
     #[cfg(feature = "a11y")]