Implement event/response roundtrip (#49)

core/editor/src/lib.rs

@@ -1,6 +1,6 @@
 mod color;
+mod dispatcher;
 mod error;
-mod scheduler;
 pub mod tools;
 pub mod workspace;
 
@@ -10,6 +10,13 @@ pub use error::EditorError;
 #[doc(inline)]
 pub use color::Color;
 
+#[doc(inline)]
+pub use dispatcher::events;
+
+#[doc(inline)]
+pub use dispatcher::Callback;
+
+use dispatcher::Dispatcher;
 use tools::ToolState;
 use workspace::Workspace;
 
@@ -17,13 +24,18 @@ use workspace::Workspace;
 pub struct Editor {
 	pub tools: ToolState,
 	workspace: Workspace,
+	dispatcher: Dispatcher,
 }
 
 impl Editor {
-	pub fn new() -> Self {
+	pub fn new(callback: Callback) -> Self {
 		Self {
 			tools: ToolState::new(),
 			workspace: Workspace::new(),
+			dispatcher: Dispatcher::new(callback),
 		}
 	}
+	pub fn handle_event(&mut self, event: events::Event) -> Result<(), EditorError> {
+		self.dispatcher.handle_event(event)
+	}
 }