Always explicitly emit `1` without modifiers in kitty encoding

While this doesn't change much with how parsers are implemented, it
improves consistency with how key release is handled.

2 files changed, 13 insertions, 3 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ed471ce7..86637383 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -48,6 +48,7 @@ Notable changes to the `alacritty_terminal` crate are documented in its
 - Moved config option `shell` to `terminal.shell`
 - `ctrl+shift+u` binding to open links to `ctrl+shift+o` to avoid collisions with IMEs
 - Use `Beam` cursor for single char cursor inside the IME preview
+- Always emit `1` for the first parameter when having modifiers in kitty keyboard protocol
 
 ### Fixed
 
diff --git a/alacritty/src/input/keyboard.rs b/alacritty/src/input/keyboard.rs
index 14755594..85734109 100644
--- a/alacritty/src/input/keyboard.rs
+++ b/alacritty/src/input/keyboard.rs
@@ -280,7 +280,7 @@ fn build_sequence(key: KeyEvent, mods: ModifiersState, mode: TermMode) -> Vec<u8
     let sequence_base = context
         .try_build_numpad(&key)
         .or_else(|| context.try_build_named_kitty(&key))
-        .or_else(|| context.try_build_named_normal(&key))
+        .or_else(|| context.try_build_named_normal(&key, associated_text.is_some()))
         .or_else(|| context.try_build_control_char_or_mod(&key, &mut modifiers))
         .or_else(|| context.try_build_textual(&key, associated_text));
 
@@ -483,14 +483,23 @@ impl SequenceBuilder {
     }
 
     /// Try building from [`NamedKey`].
-    fn try_build_named_normal(&self, key: &KeyEvent) -> Option<SequenceBase> {
+    fn try_build_named_normal(
+        &self,
+        key: &KeyEvent,
+        has_associated_text: bool,
+    ) -> Option<SequenceBase> {
         let named = match key.logical_key {
             Key::Named(named) => named,
             _ => return None,
         };
 
         // The default parameter is 1, so we can omit it.
-        let one_based = if self.modifiers.is_empty() && !self.kitty_event_type { "" } else { "1" };
+        let one_based =
+            if self.modifiers.is_empty() && !self.kitty_event_type && !has_associated_text {
+                ""
+            } else {
+                "1"
+            };
         let (base, terminator) = match named {
             NamedKey::PageUp => ("5", SequenceTerminator::Normal('~')),
             NamedKey::PageDown => ("6", SequenceTerminator::Normal('~')),