fix: float windows by default if they have WS_POPUP style (#941)

packages/wm-platform/src/native_window.rs

@@ -33,7 +33,8 @@ use windows::{
         SW_MINIMIZE, SW_RESTORE, SW_SHOWNA, WINDOWPLACEMENT,
         WINDOW_EX_STYLE, WINDOW_STYLE, WM_CLOSE, WPF_ASYNCWINDOWPLACEMENT,
         WS_CAPTION, WS_CHILD, WS_DLGFRAME, WS_EX_LAYERED,
-        WS_EX_NOACTIVATE, WS_EX_TOOLWINDOW, WS_MAXIMIZEBOX, WS_THICKFRAME,
+        WS_EX_NOACTIVATE, WS_EX_TOOLWINDOW, WS_MAXIMIZEBOX, WS_POPUP,
+        WS_THICKFRAME,
       },
     },
   },
@@ -284,6 +285,12 @@ impl NativeWindow {
     self.has_window_style(WS_THICKFRAME)
   }
 
+  /// Whether the window is meant to be a popup window.
+  #[must_use]
+  pub fn is_popup(&self) -> bool {
+    self.has_window_style(WS_POPUP)
+  }
+
   /// Whether the window is fullscreen.
   ///
   /// Returns `false` if the window is maximized.

packages/wm/src/commands/window/manage_window.rs

@@ -213,8 +213,8 @@ fn window_state_to_create(
     ));
   }
 
-  // Initialize windows that can't be resized as floating.
-  if !native_window.is_resizable() {
+  // Initialize non-resizable windows and popups as floating.
+  if !native_window.is_resizable() || native_window.is_popup() {
     return Ok(WindowState::Floating(
       config.value.window_behavior.state_defaults.floating.clone(),
     ));