show scan progress

src-tauri/src/cleaner.rs

@@ -98,13 +98,32 @@ pub async fn disable_hibernation() -> Result<String, String> {
 
 // --- 原有逻辑保持 (磁盘树等) ---
 
-pub async fn run_full_scan(root_path: String, state: &DiskState) {
+#[derive(Serialize, Clone)]
+pub struct ScanProgress {
+    pub file_count: u64,
+    pub current_path: String,
+}
+
+pub async fn run_full_scan(root_path: String, state: &DiskState, app_handle: tauri::AppHandle) {
     use jwalk::WalkDir;
+    use tauri::Emitter;
+    
     let mut dir_sizes = HashMap::new();
     let root = Path::new(&root_path);
+    let mut file_count = 0;
 
     for entry in WalkDir::new(root).skip_hidden(false).into_iter().filter_map(|e| e.ok()) {
         if entry.file_type.is_file() {
+            file_count += 1;
+            
+            // 节流推送进度：每 2000 个文件推送一次，避免 IPC 过载
+            if file_count % 2000 == 0 {
+                let _ = app_handle.emit("scan-progress", ScanProgress {
+                    file_count,
+                    current_path: entry.parent_path().to_string_lossy().to_string(),
+                });
+            }
+
             let size = entry.metadata().map(|m| m.len()).unwrap_or(0);
             let mut current_path = entry.parent_path().to_path_buf();
             while current_path.starts_with(root) {