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Add Kitty keyboard protocol support for Shift+Enter and other modifier keys

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Enable the Kitty keyboard protocol on terminal start to receive enhanced
key sequences that include modifier information. This fixes Shift+Enter
not working in Ghostty, Kitty, WezTerm, and other modern terminals.

Changes:
- Enable Kitty protocol on start (\x1b[>1u), disable on stop (\x1b[<u)
- Add centralized key definitions in packages/tui/src/keys.ts
- Support both legacy and Kitty sequences for all modifier+key combos:
  - Shift+Enter, Alt+Enter for newlines
  - Shift+Tab for thinking level cycling
  - Ctrl+C, Ctrl+A, Ctrl+E, Ctrl+K, Ctrl+U, Ctrl+W, Ctrl+O, Ctrl+P, Ctrl+T
  - Alt+Backspace for word deletion
- Export Keys constants and helper functions from @mariozechner/pi-tui
This commit is contained in:
Ahmed Kamal 2025-12-18 19:20:30 +02:00
parent 2f86c8bc3c
commit 4a4531f887
10 changed files with 182 additions and 47 deletions
Download patch file Download diff file Expand all files Collapse all files

22
packages/coding-agent/src/modes/interactive/components/custom-editor.ts
View file

@ -1,4 +1,4 @@
import { Editor } from "@mariozechner/pi-tui";
import { Editor, isShiftTab, Keys } from "@mariozechner/pi-tui";
/**
* Custom editor that handles Escape and Ctrl+C keys for coding-agent
@ -12,26 +12,26 @@ export class CustomEditor extends Editor {
public onCtrlT?: () => void;
handleInput(data: string): void {
// Intercept Ctrl+T for thinking block visibility toggle
if (data === "\x14" && this.onCtrlT) {
// Intercept Ctrl+T for thinking block visibility toggle (raw byte or Kitty protocol)
if ((data === "\x14" || data === Keys.CTRL_T) && this.onCtrlT) {
this.onCtrlT();
return;
}
// Intercept Ctrl+O for tool output expansion
if (data === "\x0f" && this.onCtrlO) {
// Intercept Ctrl+O for tool output expansion (raw byte or Kitty protocol)
if ((data === "\x0f" || data === Keys.CTRL_O) && this.onCtrlO) {
this.onCtrlO();
return;
}
// Intercept Ctrl+P for model cycling
if (data === "\x10" && this.onCtrlP) {
// Intercept Ctrl+P for model cycling (raw byte or Kitty protocol)
if ((data === "\x10" || data === Keys.CTRL_P) && this.onCtrlP) {
this.onCtrlP();
return;
}
// Intercept Shift+Tab for thinking level cycling
if (data === "\x1b[Z" && this.onShiftTab) {
// Intercept Shift+Tab for thinking level cycling (legacy or Kitty protocol)
if (isShiftTab(data) && this.onShiftTab) {
this.onShiftTab();
return;
}
@ -43,8 +43,8 @@ export class CustomEditor extends Editor {
return;
}
// Intercept Ctrl+C
if (data === "\x03" && this.onCtrlC) {
// Intercept Ctrl+C (raw byte or Kitty keyboard protocol)
if ((data === "\x03" || data === Keys.CTRL_C) && this.onCtrlC) {
this.onCtrlC();
return;
}

6
packages/coding-agent/src/modes/interactive/components/session-selector.ts
View file

@ -1,4 +1,4 @@
import { type Component, Container, Input, Spacer, Text, truncateToWidth } from "@mariozechner/pi-tui";
import { type Component, Container, Input, Keys, Spacer, Text, truncateToWidth } from "@mariozechner/pi-tui";
import type { SessionManager } from "../../../core/session-manager.js";
import { fuzzyFilter } from "../../../utils/fuzzy.js";
import { theme } from "../theme/theme.js";
@ -144,8 +144,8 @@ class SessionList implements Component {
this.onCancel();
}
}
// Ctrl+C - exit process
else if (keyData === "\x03") {
// Ctrl+C - exit process (raw byte or Kitty keyboard protocol)
else if (keyData === "\x03" || keyData === Keys.CTRL_C) {
process.exit(0);
}
// Pass everything else to search input

6
packages/coding-agent/src/modes/interactive/components/user-message-selector.ts
View file

@ -1,4 +1,4 @@
import { type Component, Container, Spacer, Text, truncateToWidth } from "@mariozechner/pi-tui";
import { type Component, Container, Keys, Spacer, Text, truncateToWidth } from "@mariozechner/pi-tui";
import { theme } from "../theme/theme.js";
import { DynamicBorder } from "./dynamic-border.js";
@ -99,8 +99,8 @@ class UserMessageList implements Component {
this.onCancel();
}
}
// Ctrl+C - cancel
else if (keyData === "\x03") {
// Ctrl+C - cancel (raw byte or Kitty keyboard protocol)
else if (keyData === "\x03" || keyData === Keys.CTRL_C) {
if (this.onCancel) {
this.onCancel();
}