Allow clipboard access in Widget::on_event

winit/Cargo.toml

@@ -13,6 +13,7 @@ debug = []
 [dependencies]
 iced_native = { version = "0.1.0-alpha", path = "../native" }
 winit = { version = "0.20.0-alpha3", git = "https://github.com/rust-windowing/winit", rev = "709808eb4e69044705fcb214bcc30556db761405"}
+window_clipboard = "=0.1.0-alpha.1"
 futures = { version = "0.3", features = ["thread-pool"] }
 log = "0.4"
 

winit/src/application.rs

@@ -2,8 +2,8 @@ use crate::{
     conversion,
     input::{keyboard, mouse},
     renderer::{Target, Windowed},
-    subscription, Cache, Command, Container, Debug, Element, Event, Length,
-    MouseCursor, Settings, Subscription, UserInterface,
+    subscription, Cache, Clipboard, Command, Container, Debug, Element, Event,
+    Length, MouseCursor, Settings, Subscription, UserInterface,
 };
 
 /// An interactive, native cross-platform application.
@@ -139,6 +139,7 @@ pub trait Application: Sized {
         let mut size = window.inner_size();
         let mut resized = false;
 
+        let clipboard = Clipboard::new(&window);
         let mut renderer = Self::Renderer::new();
 
         let mut target = {
@@ -193,8 +194,13 @@ pub trait Application: Sized {
                     subscription_pool.broadcast_event(*event)
                 });
 
-                let mut messages =
-                    user_interface.update(&renderer, events.drain(..));
+                let mut messages = user_interface.update(
+                    &renderer,
+                    clipboard
+                        .as_ref()
+                        .map(|c| c as &dyn iced_native::Clipboard),
+                    events.drain(..),
+                );
                 messages.extend(external_messages.drain(..));
                 debug.event_processing_finished();
 

winit/src/clipboard.rs

@@ -0,0 +1,13 @@
+pub struct Clipboard(window_clipboard::Clipboard);
+
+impl Clipboard {
+    pub fn new(window: &winit::window::Window) -> Option<Clipboard> {
+        window_clipboard::Clipboard::new(window).map(Clipboard).ok()
+    }
+}
+
+impl iced_native::Clipboard for Clipboard {
+    fn content(&self) -> Option<String> {
+        self.0.read().ok()
+    }
+}

winit/src/lib.rs

@@ -29,11 +29,9 @@ pub mod conversion;
 pub mod settings;
 
 mod application;
+mod clipboard;
 mod subscription;
 
-pub use application::Application;
-pub use settings::Settings;
-
 // We disable debug capabilities on release builds unless the `debug` feature
 // is explicitly enabled.
 #[cfg(feature = "debug")]
@@ -43,4 +41,8 @@ mod debug;
 #[path = "debug/null.rs"]
 mod debug;
 
+pub use application::Application;
+pub use settings::Settings;
+
+use clipboard::Clipboard;
 use debug::Debug;