LibVT/LibLine: Delete words when pressing Ctrl+Backspace in Terminal

1 files changed, 11 insertions, 0 deletions

diff --git a/Userland/Libraries/LibVT/Terminal.cpp b/Userland/Libraries/LibVT/Terminal.cpp
index 829bd5ce48..865c532593 100644
--- a/Userland/Libraries/LibVT/Terminal.cpp
+++ b/Userland/Libraries/LibVT/Terminal.cpp
@@ -1378,6 +1378,17 @@ void Terminal::handle_key_press(KeyCode key, u32 code_point, u8 flags)
     case KeyCode::Key_PageDown:
         emit_tilde_with_modifier(6);
         return;
+    case KeyCode::Key_Backspace:
+        if (ctrl) {
+            // This is an extension that allows Editor.cpp to delete whole words when
+            // Ctrl+Backspace is pressed. Ctrl cannot be transmitted without a CSI, and
+            // ANSI delete (127) is within the valid range for CSI codes in Editor.cpp.
+            // The code also has the same behavior as backspace when emitted with no CSI,
+            // though the backspace code (8) is preserved when Ctrl is not pressed.
+            emit_final_with_modifier(127);
+            return;
+        }
+        break;
     case KeyCode::Key_Return:
         // The standard says that CR should be generated by the return key.
         // The TTY will take care of translating it to CR LF for the terminal.