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feat: add word-based navigation and deletion shortcuts to input (#164)

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Co-authored-by: Letta <noreply@letta.com>
This commit is contained in:
jnjpng
2025-12-08 17:14:43 -08:00
committed by GitHub
parent c104966d99
commit 723dd17d47
2 changed files with 213 additions and 20 deletions
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50
vendor/ink-text-input/build/index.js vendored
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@@ -2,6 +2,31 @@ import chalk from 'chalk';
import { Text, useInput } from 'ink';
import React, { useEffect, useState } from 'react';
/**
* Determines if the input should be treated as a control sequence (not inserted as text).
* This centralizes escape sequence filtering to prevent garbage characters from being inserted.
*/
function isControlSequence(input, key) {
// Pasted content is handled separately
if (key?.isPasted) return true;
// Standard control keys (but NOT plain escape - apps may need it for shortcuts)
if (key.tab || (key.ctrl && input === 'c')) return true;
if (key.shift && key.tab) return true;
// Ctrl+W (delete word) - handled by parent component
if (key.ctrl && (input === 'w' || input === 'W')) return true;
// Option+Arrow escape sequences: Ink parses \x1bb as meta=true, input='b'
if (key.meta && (input === 'b' || input === 'B' || input === 'f' || input === 'F')) return true;
// Filter specific escape sequences that would insert garbage, but allow plain ESC through
// CSI sequences (ESC[...), Option+Delete (ESC + DEL), and other multi-char escape sequences
if (input && typeof input === 'string' && input.startsWith('\x1b') && input.length > 1) return true;
return false;
}
function TextInput({ value: originalValue, placeholder = '', focus = true, mask, highlightPastedText = false, showCursor = true, onChange, onSubmit, externalCursorOffset, onCursorOffsetChange }) {
const [state, setState] = useState({ cursorOffset: (originalValue || '').length, cursorWidth: 0 });
const { cursorOffset, cursorWidth } = state;
@@ -42,11 +67,8 @@ function TextInput({ value: originalValue, placeholder = '', focus = true, mask,
}
}
useInput((input, key) => {
if (key && key.isPasted) {
return;
}
// Treat Escape as a control key (don't insert into value)
if (key.escape || (key.ctrl && input === 'c') || key.tab || (key.shift && key.tab)) {
// Filter control sequences (escape keys, Option+Arrow garbage, etc.)
if (isControlSequence(input, key)) {
return;
}
if (key.return) {
@@ -58,22 +80,24 @@ function TextInput({ value: originalValue, placeholder = '', focus = true, mask,
let nextCursorOffset = cursorOffset;
let nextValue = originalValue;
let nextCursorWidth = 0;
if (key.leftArrow) {
if (showCursor) {
nextCursorOffset--;
if (key.leftArrow || key.rightArrow) {
// Skip if meta is pressed - Option+Arrow is handled by parent for word navigation
if (key.meta) {
return;
}
}
else if (key.rightArrow) {
if (showCursor) {
nextCursorOffset++;
nextCursorOffset += key.leftArrow ? -1 : 1;
}
}
else if (key.upArrow || key.downArrow) {
// Handle wrapped line navigation - don't handle here, let parent decide
// Parent will check cursor position to determine if at boundary
// Let parent decide (wrapped line navigation)
return;
}
else if (key.backspace || key.delete) {
// Skip if meta is pressed - Option+Delete is handled by parent for word deletion
if (key.meta) {
return;
}
if (cursorOffset > 0) {
nextValue = originalValue.slice(0, cursorOffset - 1) + originalValue.slice(cursorOffset, originalValue.length);
nextCursorOffset--;