fix #8

src/app.rs

@@ -30,6 +30,9 @@ pub struct App {
     // used to show playlist popup
     pub playlist_popup: bool,
     pub append_list: ContentList<String>,
+
+    // Determines if the database should be updated or not
+    pub should_update_song_list: bool,
 }
 
 #[derive(Debug, PartialEq, Clone)]
@@ -67,12 +70,33 @@ impl App {
             pl_cursor_pos: 0,
             playlist_popup: false,
             append_list,
+            should_update_song_list: false,
         })
     }
 
-    pub fn tick(&mut self) {
+    pub fn tick(&mut self) -> AppResult<()> {
         self.conn.update_status();
         self.update_queue();
+
+        // Deals with database update
+        if self.should_update_song_list {
+            if let None = self.conn.status.updating_db {
+                // Update the songs list
+                self.conn.songs_filenames = self
+                    .conn
+                    .conn
+                    .listall()?
+                    .into_iter()
+                    .map(|x| x.file)
+                    .collect();
+
+                self.browser.update_directory(&mut self.conn)?;
+
+                self.should_update_song_list = false;
+            }
+        }
+
+        Ok(())
     }
 
     pub fn quit(&mut self) {

src/connection.rs

@@ -18,6 +18,7 @@ pub struct Connection {
     pub random: bool,
     pub current_song: Song,
     pub stats: mpd::Stats,
+    pub status: mpd::Status,
 }
 
 impl Connection {
@@ -61,6 +62,7 @@ impl Connection {
             random,
             current_song,
             stats,
+            status,
         })
     }
 
@@ -90,6 +92,9 @@ impl Connection {
             .unwrap_or(empty_song);
         let stats = self.conn.stats().unwrap_or_default();
 
+        // Status
+        self.status = status.clone();
+
         // Playback State
         self.state = match status.state {
             State::Stop => "Stopped".to_string(),

src/event/handler.rs

@@ -141,17 +141,7 @@ pub fn handle_key_events(key_event: KeyEvent, app: &mut App) -> AppResult<()> {
             // Update MPD database
             KeyCode::Char('U') => {
                 app.conn.conn.rescan()?;
-
+                app.should_update_song_list = true;
-                // Update the songs list
-                app.conn.songs_filenames = app
-                    .conn
-                    .conn
-                    .listall()?
-                    .into_iter()
-                    .map(|x| x.file)
-                    .collect();
-
-                app.browser.update_directory(&mut app.conn)?;
             }
 
             // Search for songs

src/main.rs

@@ -33,7 +33,7 @@ fn main() -> AppResult<()> {
     while app.running {
         tui.draw(&mut app)?;
         match tui.events.next()? {
-            Event::Tick => app.tick(),
+            Event::Tick => app.tick()?,
             Event::Key(key_event) => handler::handle_key_events(key_event, &mut app)?,
             Event::Mouse(_) => {}
             Event::Resize(_, _) => {}