feat(napi): Win32 calls, native callbacks and message windows

runtime/src/lib.rs

@@ -59,7 +59,7 @@ pub mod timers;
 mod type_description;
 pub mod ui_dispatcher;
 mod value;
-#[cfg(feature = "classic")]
+#[cfg(any(feature = "classic", feature = "napi_engine"))]
 pub(crate) mod win32;
 #[cfg(feature = "classic")]
 pub(crate) mod win32_fast;

runtime/src/napi_engine/event_loop.rs

@@ -27,6 +27,14 @@ thread_local! {
     static KEEP_ALIVE: Cell<i64> = const { Cell::new(0) };
 }
 
+pub(crate) fn retain() {
+    KEEP_ALIVE.with(|k| k.set(k.get() + 1));
+}
+
+pub(crate) fn release() {
+    KEEP_ALIVE.with(|k| k.set((k.get() - 1).max(0)));
+}
+
 /// Install `__nsLoopRetain` / `__nsLoopRelease` on the global object (install-if-missing; on
 /// Node these are never consulted because nswinrt.js manages its own pump lifecycle).
 pub fn install_loop_natives(env: &Env) -> napi::Result<()> {
@@ -40,16 +48,16 @@ pub fn install_loop_natives(env: &Env) -> napi::Result<()> {
     if present {
         return Ok(());
     }
-    let retain = env.create_function_from_closure("__nsLoopRetain", |_ctx| {
-        KEEP_ALIVE.with(|k| k.set(k.get() + 1));
+    let retain_fn = env.create_function_from_closure("__nsLoopRetain", |_ctx| {
+        retain();
         Ok(())
     })?;
-    global.set_named_property("__nsLoopRetain", retain)?;
-    let release = env.create_function_from_closure("__nsLoopRelease", |_ctx| {
-        KEEP_ALIVE.with(|k| k.set((k.get() - 1).max(0)));
+    global.set_named_property("__nsLoopRetain", retain_fn)?;
+    let release_fn = env.create_function_from_closure("__nsLoopRelease", |_ctx| {
+        release();
         Ok(())
     })?;
-    global.set_named_property("__nsLoopRelease", release)?;
+    global.set_named_property("__nsLoopRelease", release_fn)?;
     Ok(())
 }
 

runtime/src/napi_engine/globals.rs

@@ -89,6 +89,8 @@ pub fn install_globals(env: &Env) -> napi::Result<()> {
     // NSWinRT.asDelegate(typeName, fn): wraps a JS function as a COM-backed WinRT delegate.
     crate::napi_engine::delegate::install_as_delegate(env)?;
 
+    crate::napi_engine::win32::install_win32(env)?;
+
     // NSWinRT.makeItemsSource/extendItemsSource/insertItemsSource/removeItemsSource/
     // updateItemsSource/resetItemsSource: the native IObservableVector<IInspectable> ItemsSource
     // core's ListView (ui/list-view/index.windows.js) requires on Windows.

runtime/src/napi_engine/mod.rs

@@ -27,6 +27,7 @@ pub mod timers;
 pub mod url;
 pub mod value;
 pub mod websocket;
+pub mod win32;
 pub mod xaml_host;
 
 // Engine-neutral marshaling types the napi backend and standalone hosts build against.