Add delay to mitigate clipboard restoration race condition. Fix #148

src/config/mod.rs

@@ -63,6 +63,7 @@ fn default_enable_passive() -> bool { false }
 fn default_enable_active() -> bool { true }
 fn default_action_noop_interval() -> u128 { 500 }
 fn default_backspace_limit() -> i32 { 3 }
+fn default_restore_clipboard_delay() -> i32 { 300 }
 fn default_exclude_default_matches() -> bool {false}
 fn default_matches() -> Vec<Match> { Vec::new() }
 
@@ -137,6 +138,9 @@ pub struct Configs {
     #[serde(default = "default_backspace_limit")]
     pub backspace_limit: i32,
 
+    #[serde(default = "default_restore_clipboard_delay")]
+    pub restore_clipboard_delay: i32,
+
     #[serde(default)]
     pub backend: BackendType,
 
@@ -185,6 +189,7 @@ impl Configs {
         validate_field!(result, self.passive_arg_escape, default_passive_arg_escape());
         validate_field!(result, self.passive_key, default_passive_key());
         validate_field!(result, self.action_noop_interval, default_action_noop_interval());
+        validate_field!(result, self.restore_clipboard_delay, default_restore_clipboard_delay());
 
         result
     }

src/engine.rs

@@ -239,6 +239,10 @@ impl <'a, S: KeyboardManager, C: ClipboardManager, M: ConfigManager<'a>, U: UIMa
 
         // Restore previous clipboard content
         if let Some(previous_clipboard_content) = previous_clipboard_content {
+            // Sometimes an expansion gets overwritten before pasting by the previous content
+            // A delay is needed to mitigate the problem
+            std::thread::sleep(std::time::Duration::from_millis(config.restore_clipboard_delay as u64));
+
             self.clipboard_manager.set_clipboard(&previous_clipboard_content);
         }
     }