feat(config): add win32_exclude_orphan_events option

espanso-config/src/config/mod.rs

@@ -144,6 +144,12 @@ pub trait Config: Send + Sync {
   // If false, avoid showing the SecureInput notification on macOS
   fn secure_input_notification(&self) -> bool;
 
+  // If true, filter out keyboard events without an explicit HID device source on Windows.
+  // This is needed to filter out the software-generated events, including
+  // those from espanso, but might need to be disabled when using some software-level keyboards.
+  // Disabling this option might conflict with the undo feature.
+  fn win32_exclude_orphan_events(&self) -> bool;
+
   fn is_match<'a>(&self, app: &AppProperties<'a>) -> bool;
 
   fn pretty_dump(&self) -> String {

espanso-config/src/config/parse/mod.rs

@@ -44,6 +44,7 @@ pub(crate) struct ParsedConfig {
   pub show_notifications: Option<bool>,
   pub show_icon: Option<bool>,
   pub secure_input_notification: Option<bool>,
+  pub win32_exclude_orphan_events: Option<bool>,
 
   pub pre_paste_delay: Option<usize>,
   pub restore_clipboard_delay: Option<usize>,

espanso-config/src/config/parse/yaml.rs

@@ -103,6 +103,9 @@ pub(crate) struct YAMLConfig {
   #[serde(default)]
   pub secure_input_notification: Option<bool>,
 
+  #[serde(default)]
+  pub win32_exclude_orphan_events: Option<bool>,
+
   // Include/Exclude
   #[serde(default)]
   pub includes: Option<Vec<String>>,
@@ -189,6 +192,8 @@ impl TryFrom<YAMLConfig> for ParsedConfig {
       restore_clipboard_delay: yaml_config.restore_clipboard_delay,
       paste_shortcut_event_delay: yaml_config.paste_shortcut_event_delay,
 
+      win32_exclude_orphan_events: yaml_config.win32_exclude_orphan_events,
+
       use_standard_includes: yaml_config.use_standard_includes,
       includes: yaml_config.includes,
       extra_includes: yaml_config.extra_includes,
@@ -242,6 +247,7 @@ mod tests {
     show_icon: false
     show_notifications: false
     secure_input_notification: false
+    win32_exclude_orphan_events: false
       
     use_standard_includes: true
     includes: ["test1"]
@@ -292,6 +298,7 @@ mod tests {
         show_icon: Some(false),
         show_notifications: Some(false),
         secure_input_notification: Some(false),
+        win32_exclude_orphan_events: Some(false),
 
         pre_paste_delay: Some(300),
 

espanso-config/src/config/resolve.rs

@@ -310,6 +310,10 @@ impl Config for ResolvedConfig {
   fn secure_input_notification(&self) -> bool {
     self.parsed.secure_input_notification.unwrap_or(true)
   }
+
+  fn win32_exclude_orphan_events(&self) -> bool {
+    self.parsed.win32_exclude_orphan_events.unwrap_or(true)
+  }
 }
 
 impl ResolvedConfig {
@@ -390,6 +394,7 @@ impl ResolvedConfig {
       show_icon,
       show_notifications,
       secure_input_notification,
+      win32_exclude_orphan_events,
       includes,
       excludes,
       extra_includes,

espanso-config/src/legacy/mod.rs

@@ -386,6 +386,10 @@ impl Config for LegacyInteropConfig {
   fn enable(&self) -> bool {
     self.config.enable_active
   }
+
+  fn win32_exclude_orphan_events(&self) -> bool {
+    true
+  }
 }
 
 struct LegacyMatchGroup {