feat: add selection, active line, and incremental highlighting to code

view

examples/gallery/src/main.rs

@@ -2845,7 +2845,8 @@ struct CodeViewDemo {
 
 impl CodeViewDemo {
     fn new(cx: &mut Context<Self>) -> Self {
-        let code = cx.new(|_| CodeViewState::new("code-view-demo", RUST_SAMPLE, Language::Rust));
+        let code =
+            cx.new(|cx| CodeViewState::new("code-view-demo", RUST_SAMPLE, Language::Rust, cx));
         // The panel is a cached view in the dock: it re-renders only when
         // the code state it renders is notified.
         let subscription = cx.observe(&code, |_, _, cx| cx.notify());
@@ -3214,6 +3215,7 @@ fn main() {
         .with_http_client(std::sync::Arc::new(reqwest_client::ReqwestClient::new()))
         .run(|cx: &mut App| {
             gpui_native_core::init(cx);
+            gpui_native_editor::code_view::bind_code_view_keys(cx);
             cx.bind_keys([
                 KeyBinding::new("cmd-k", OpenCommandPalette, None),
                 KeyBinding::new("ctrl-k", OpenCommandPalette, None),