fix: clipboard, preserve uncompressed special format data (#16100)

Signed-off-by: cuishuang <imcusg@gmail.com>

src/clipboard.rs

@@ -698,7 +698,7 @@ mod proto {
         let content = if compress {
             compressed
         } else {
-            s.bytes().collect::<Vec<u8>>()
+            d
         };
         Clipboard {
             compress,
@@ -794,6 +794,29 @@ mod proto {
                 msg
             })
     }
+
+    #[cfg(all(test, not(target_os = "android")))]
+    mod tests {
+        use super::{from_clipboard, special_to_proto};
+        use arboard::ClipboardData;
+
+        #[test]
+        fn preserves_uncompressed_special_clipboard_data() {
+            let data = vec![0x01, 0x02, 0x03];
+            let name = "custom-format".to_owned();
+
+            let clipboard = special_to_proto(data.clone(), name.clone());
+
+            assert!(!clipboard.compress);
+            assert_eq!(clipboard.content.as_ref(), data.as_slice());
+            assert_eq!(clipboard.special_name, name);
+            assert!(matches!(
+                from_clipboard(clipboard),
+                Some(ClipboardData::Special((restored_name, restored_data)))
+                    if restored_name == name && restored_data == data
+            ));
+        }
+    }
 }
 
 #[cfg(all(test, not(target_os = "android")))]