feat(config): add inject_delay and key_delay options

espanso-config/src/config/mod.rs

@@ -83,6 +83,14 @@ pub trait Config: Send {
   // the expansion content.
   fn restore_clipboard_delay(&self) -> usize;
 
+  // Number of milliseconds between text injection events. Increase if the target
+  // application is missing some characters.
+  fn inject_delay(&self) -> Option<usize>;
+
+  // Number of milliseconds between key injection events. Increase if the target
+  // application is missing some key events.
+  fn key_delay(&self) -> Option<usize>;
+
   fn is_match<'a>(&self, app: &AppProperties<'a>) -> bool;
 }
 

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

@@ -38,6 +38,8 @@ pub(crate) struct ParsedConfig {
   pub pre_paste_delay: Option<usize>,
   pub restore_clipboard_delay: Option<usize>,
   pub paste_shortcut_event_delay: Option<usize>,
+  pub inject_delay: Option<usize>,
+  pub key_delay: Option<usize>,
 
 
   // Includes

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

@@ -60,6 +60,15 @@ pub(crate) struct YAMLConfig {
   #[serde(default)]
   pub disable_x11_fast_inject: Option<bool>,
 
+  #[serde(default)]
+  pub inject_delay: Option<usize>,
+
+  #[serde(default)]
+  pub key_delay: Option<usize>,
+
+  #[serde(default)]
+  pub backspace_delay: Option<usize>,
+
   // Include/Exclude
   #[serde(default)]
   pub includes: Option<Vec<String>>,
@@ -116,6 +125,8 @@ impl TryFrom<YAMLConfig> for ParsedConfig {
       preserve_clipboard: yaml_config.preserve_clipboard,
       paste_shortcut: yaml_config.paste_shortcut,
       disable_x11_fast_inject: yaml_config.disable_x11_fast_inject,
+      inject_delay: yaml_config.inject_delay,
+      key_delay: yaml_config.key_delay.or(yaml_config.backspace_delay),
 
       pre_paste_delay: yaml_config.pre_paste_delay,
       restore_clipboard_delay: yaml_config.restore_clipboard_delay,
@@ -155,6 +166,9 @@ mod tests {
     paste_shortcut: CTRL+ALT+V
     paste_shortcut_event_delay: 10
     disable_x11_fast_inject: true
+    inject_delay: 10
+    key_delay: 20
+    backspace_delay: 30
       
     use_standard_includes: true
     includes: ["test1"]
@@ -184,6 +198,8 @@ mod tests {
         paste_shortcut: Some("CTRL+ALT+V".to_string()),
         paste_shortcut_event_delay: Some(10),
         disable_x11_fast_inject: Some(true),
+        inject_delay: Some(10),
+        key_delay: Some(20),
 
         pre_paste_delay: Some(300),
         

espanso-config/src/config/resolve.rs

@@ -207,6 +207,14 @@ impl Config for ResolvedConfig {
   fn disable_x11_fast_inject(&self) -> bool {
     self.parsed.disable_x11_fast_inject.unwrap_or(false)
   }
+
+  fn inject_delay(&self) -> Option<usize> {
+    self.parsed.inject_delay
+  }
+
+  fn key_delay(&self) -> Option<usize> {
+    self.parsed.key_delay
+  }
 }
 
 impl ResolvedConfig {
@@ -273,6 +281,8 @@ impl ResolvedConfig {
       paste_shortcut_event_delay,
       disable_x11_fast_inject,
       toggle_key,
+      inject_delay,
+      key_delay,
       includes,
       excludes,
       extra_includes,

espanso-config/src/legacy/mod.rs

@@ -311,6 +311,22 @@ impl Config for LegacyInteropConfig {
   fn disable_x11_fast_inject(&self) -> bool {
     self.config.fast_inject
   }
+
+  fn inject_delay(&self) -> Option<usize> {
+    if self.config.inject_delay == 0 {
+      None
+    } else {
+      Some(self.config.inject_delay.try_into().unwrap())
+    }
+  }
+
+  fn key_delay(&self) -> Option<usize> {
+    if self.config.backspace_delay == 0 {
+      None
+    } else {
+      Some(self.config.backspace_delay.try_into().unwrap())
+    }
+  }
 }
 
 struct LegacyMatchGroup {