fix(input): refix ctrl-j (#3746)

* fix(input): refix ctrl-j

* fix e2e tests

src/tests/e2e/cases.rs

@@ -20,7 +20,7 @@ use super::remote_runner::{RemoteRunner, RemoteTerminal, Step};
 
 pub const QUIT: [u8; 1] = [17]; // ctrl-q
 pub const ESC: [u8; 1] = [27];
-pub const ENTER: [u8; 1] = [10]; // char '\n'
+pub const ENTER: [u8; 2] = [10, 13]; // '\n\r'
 pub const SPACE: [u8; 1] = [32];
 pub const LOCK_MODE: [u8; 1] = [7]; // ctrl-g
 

zellij-utils/src/input/keybinds.rs

@@ -1,7 +1,7 @@
 use std::collections::{BTreeMap, HashMap};
 
 use super::actions::Action;
-use crate::data::{InputMode, KeyWithModifier, KeybindsVec};
+use crate::data::{BareKey, InputMode, KeyWithModifier, KeybindsVec};
 
 use serde::{Deserialize, Serialize};
 use std::fmt;
@@ -44,8 +44,13 @@ impl Keybinds {
     ) -> Vec<Action> {
         self.0
             .get(mode)
-            .and_then(|normal_mode_keybindings| normal_mode_keybindings.get(key_with_modifier))
-            .cloned()
+            .and_then(|mode_keybindings| {
+                if raw_bytes == &[10] {
+                    handle_ctrl_j(&mode_keybindings, &raw_bytes, key_is_kitty_protocol)
+                } else {
+                    mode_keybindings.get(key_with_modifier).cloned()
+                }
+            })
             .unwrap_or_else(|| {
                 vec![self.default_action_for_mode(
                     mode,
@@ -107,6 +112,26 @@ impl Keybinds {
     }
 }
 
+// we need to do this because [10] in standard STDIN, [10] is both Enter (without a carriage
+// return) and ctrl-j - so here, if ctrl-j is bound we return its bound action, and otherwise we
+// just write the raw bytes to the terminal and let whichever program is there decide what they are
+fn handle_ctrl_j(
+    mode_keybindings: &HashMap<KeyWithModifier, Vec<Action>>,
+    raw_bytes: &[u8],
+    key_is_kitty_protocol: bool,
+) -> Option<Vec<Action>> {
+    let ctrl_j = KeyWithModifier::new(BareKey::Char('j')).with_ctrl_modifier();
+    if mode_keybindings.get(&ctrl_j).is_some() {
+        mode_keybindings.get(&ctrl_j).cloned()
+    } else {
+        Some(vec![Action::Write(
+            Some(ctrl_j),
+            raw_bytes.to_vec().clone(),
+            key_is_kitty_protocol,
+        )])
+    }
+}
+
 // The unit test location.
 #[cfg(test)]
 #[path = "./unit/keybinds_test.rs"]