fix clipboard initial sync issue introduced in the PR

src/server/clipboard_service.rs

@@ -24,7 +24,7 @@ mod listen {
     use super::*;
 
     static RUNNING: AtomicBool = AtomicBool::new(true);
-    static WAIT: Duration = Duration::from_millis(1500);
+    static WAIT: Duration = Duration::from_millis(33);
 
     struct ClipHandle {
         tx: SyncSender<()>,
@@ -69,21 +69,34 @@ mod listen {
             let _ = Master::new(ClipHandle { tx }).run();
         });
 
+        check_clipboard(&mut ctx, None); // initialize CONTENT for snapshot
         while sp.ok() {
+            let mut update = None;
+            sp.snapshot(|sps| {
+                if sps.has_subscribes() {
+                    update = check_clipboard(&mut ctx, None);
+                }
+                // if there is update, msg will be later together,
+                // otherwise it will be only sent to new subscriber,
+                // but old subscribers ignored
+                if update.is_none() {
+                    let txt = crate::CONTENT.lock().unwrap().clone();
+                    if !txt.is_empty() {
+                        let msg_out = crate::create_clipboard_msg(txt);
+                        sps.send_shared(Arc::new(msg_out));
+                    }
+                }
+                Ok(())
+            })?;
+            if let Some(msg) = update {
+                sp.send(msg);
+            }
+
             if let Ok(_) = rx.recv_timeout(WAIT) {
                 if let Some(msg) = check_clipboard(&mut ctx, None) {
                     sp.send(msg);
                 }
             }
-
-            sp.snapshot(|sps| {
-                let txt = crate::CONTENT.lock().unwrap().clone();
-                if !txt.is_empty() {
-                    let msg_out = crate::create_clipboard_msg(txt);
-                    sps.send_shared(Arc::new(msg_out));
-                }
-                Ok(())
-            })?;
         }
 
         RUNNING.store(false, Ordering::SeqCst);
@@ -96,13 +109,13 @@ mod listen {
     }
 
     fn trigger(ctx: &mut ClipboardContext) {
+        let mut old_text = "".to_owned();
         let _ = match ctx.get_text() {
             Ok(text) => {
-                if !text.is_empty() {
+                old_text = text;
-                    ctx.set_text(text).ok();
-                }
             }
             Err(_) => {}
         };
+        ctx.set_text(old_text).ok();
     }
 }

src/server/connection.rs

@@ -330,7 +330,7 @@ impl Connection {
         if let Err(e) = handler_input.join() {
             log::error!("Failed to join input thread, {:?}", e);
         } else {
-            log::info!("Blank thread exited");
+            log::info!("input thread exited");
         }
 
         let _ = crate::platform::block_input(false);