Win32: Introduce safe wrapper for window creation process and lifecycle

src/win/drop_target.rs

@@ -43,11 +43,8 @@ impl DropTarget {
         };
 
         unsafe {
-            let mut window = crate::Window::new(window_state.create_window());
-
             let event = Event::Mouse(event);
-            let event_status =
-                window_state.handler_mut().as_mut().unwrap().on_event(&mut window, event);
+            let event_status = window_state.handle_event(event);
 
             if let Some(pdwEffect) = pdwEffect {
                 match event_status {

src/win/hook.rs

@@ -15,7 +15,8 @@ use windows_sys::Win32::{
     },
 };
 
-use crate::win::wnd_proc;
+use crate::win::BaseviewWindow;
+use crate::wrappers::win32::window::wnd_proc;
 
 // track all windows opened by this instance of baseview
 // we use an RwLock here since the vast majority of uses (event interceptions)
@@ -128,7 +129,7 @@ unsafe fn offer_message_to_baseview(msg: *mut MSG) -> bool {
 
     // check if this is one of our windows. if so, intercept it
     if HOOK_STATE.read().unwrap().open_windows.contains(&HWNDWrapper(msg.hwnd)) {
-        let _ = wnd_proc(msg.hwnd, msg.message, msg.wParam, msg.lParam);
+        let _ = wnd_proc::<BaseviewWindow>(msg.hwnd, msg.message, msg.wParam, msg.lParam);
 
         return true;
     }