fix: windows cannot save window state(2)

src-tauri/src/core/handle.rs

@@ -9,6 +9,7 @@ use tauri::{AppHandle, Emitter, Manager, WebviewWindow};
 #[derive(Debug, Default, Clone)]
 pub struct Handle {
     pub app_handle: Arc<RwLock<Option<AppHandle>>>,
+    pub is_exiting: Arc<RwLock<bool>>,
 }
 
 impl Handle {
@@ -17,6 +18,7 @@ impl Handle {
 
         HANDLE.get_or_init(|| Handle {
             app_handle: Arc::new(RwLock::new(None)),
+            is_exiting: Arc::new(RwLock::new(false)),
         })
     }
 
@@ -68,4 +70,13 @@ impl Handle {
         Tray::update_part()?;
         Ok(())
     }
+
+    pub fn set_is_exiting(&self) {
+        let mut is_exiting = self.is_exiting.write();
+        *is_exiting = true;
+    }
+
+    pub fn is_exiting(&self) -> bool {
+        *self.is_exiting.read()
+    }
 }