Stop setting window styles when minimizing (rust-windowing#985)

Author: SuperiorJT

src/platform_impl/windows/window_state.rs

@@ -266,24 +266,25 @@ impl WindowFlags {
             }
         }
 
-        if diff.contains(WindowFlags::MINIMIZED) || new.contains(WindowFlags::MINIMIZED) {
+        if diff.contains(WindowFlags::MAXIMIZED) || new.contains(WindowFlags::MAXIMIZED) {
             unsafe {
                 winuser::ShowWindow(
                     window,
-                    match new.contains(WindowFlags::MINIMIZED) {
-                        true => winuser::SW_MINIMIZE,
+                    match new.contains(WindowFlags::MAXIMIZED) {
+                        true => winuser::SW_MAXIMIZE,
                         false => winuser::SW_RESTORE,
                     },
                 );
             }
         }
 
-        if diff.contains(WindowFlags::MAXIMIZED) || new.contains(WindowFlags::MAXIMIZED) {
+        // Minimize operations should execute after maximize for proper window animations
+        if diff.contains(WindowFlags::MINIMIZED) {
             unsafe {
                 winuser::ShowWindow(
                     window,
-                    match new.contains(WindowFlags::MAXIMIZED) {
-                        true => winuser::SW_MAXIMIZE,
+                    match new.contains(WindowFlags::MINIMIZED) {
+                        true => winuser::SW_MINIMIZE,
                         false => winuser::SW_RESTORE,
                     },
                 );
@@ -296,8 +297,11 @@ impl WindowFlags {
             unsafe {
                 winuser::SendMessageW(window, *event_loop::SET_RETAIN_STATE_ON_SIZE_MSG_ID, 1, 0);
 
-                winuser::SetWindowLongW(window, winuser::GWL_STYLE, style as _);
-                winuser::SetWindowLongW(window, winuser::GWL_EXSTYLE, style_ex as _);
+                // This condition is necessary to avoid having an unrestorable window
+                if !new.contains(WindowFlags::MINIMIZED) {
+                    winuser::SetWindowLongW(window, winuser::GWL_STYLE, style as _);
+                    winuser::SetWindowLongW(window, winuser::GWL_EXSTYLE, style_ex as _);
+                }
 
                 let mut flags = winuser::SWP_NOZORDER
                     | winuser::SWP_NOMOVE