diff --git a/src-tauri/src/lib.rs b/src-tauri/src/lib.rs
index 81cff88..43ff95e 100644
--- a/src-tauri/src/lib.rs
+++ b/src-tauri/src/lib.rs
@@ -1,4 +1,5 @@
 mod commands;
+mod utils;
 
 use tauri::Wry;
 
@@ -28,6 +29,10 @@ pub fn run() {
     tauri::Builder::default()
         .plugin(tauri_plugin_opener::init())
         .invoke_handler(builder.invoke_handler())
+        .setup(move |app| {
+            builder.mount_events(app);
+            Ok(())
+        })
         .run(generate_context())
         .expect("error while running tauri application");
 }
diff --git a/src-tauri/src/utils.rs b/src-tauri/src/utils.rs
new file mode 100644
index 0000000..15e701f
--- /dev/null
+++ b/src-tauri/src/utils.rs
@@ -0,0 +1,19 @@
+pub fn filename_filter(s: &str) -> String {
+    s.chars()
+        .map(|c| match c {
+            '\\' | '/' | '\n' => ' ',
+            ':' => '：',
+            '*' => '⭐',
+            '?' => '？',
+            '"' => '\'',
+            '<' => '《',
+            '>' => '》',
+            '|' => '丨',
+            _ => c,
+        })
+        .collect::<String>()
+        .trim()
+        .trim_end_matches('.')
+        .trim()
+        .to_string()
+}