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Merge pull request #411 from nathyong/feature/shift-backspace

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tui: fix shift+space/backspace/delete on kitty-protocol terminals
This commit is contained in:
Mario Zechner 2026-01-03 00:28:58 +01:00 • committed by GitHub
commit 3506ac81f2
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2 changed files with 39 additions and 4 deletions
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15
packages/tui/src/components/editor.ts
View file

@ -22,7 +22,10 @@ import {
isEnter,
isEscape,
isHome,
isShiftBackspace,
isShiftDelete,
isShiftEnter,
isShiftSpace,
isTab,
} from "../keys.js";
import type { Component } from "../tui.js";
@ -457,8 +460,8 @@ export class Editor implements Component {
this.onSubmit(result);
}
}
// Backspace
else if (isBackspace(data)) {
// Backspace (including Shift+Backspace)
else if (isBackspace(data) || isShiftBackspace(data)) {
this.handleBackspace();
}
// Line navigation shortcuts (Home/End keys)
@ -467,8 +470,8 @@ export class Editor implements Component {
} else if (isEnd(data)) {
this.moveToLineEnd();
}
// Forward delete (Fn+Backspace or Delete key)
else if (isDelete(data)) {
// Forward delete (Fn+Backspace or Delete key, including Shift+Delete)
else if (isDelete(data) || isShiftDelete(data)) {
this.handleForwardDelete();
}
// Word navigation (Option/Alt + Arrow or Ctrl + Arrow)
@ -503,6 +506,10 @@ export class Editor implements Component {
// Left
this.moveCursor(0, -1);
}
// Shift+Space - insert regular space (Kitty protocol sends escape sequence)
else if (isShiftSpace(data)) {
this.insertCharacter(" ");
}
// Regular characters (printable characters and unicode, but not control characters)
else if (data.charCodeAt(0) >= 32) {
this.insertCharacter(data);

28
packages/tui/src/keys.ts
View file

@ -42,6 +42,7 @@ const CODEPOINTS = {
escape: 27,
tab: 9,
enter: 13,
space: 32,
backspace: 127,
} as const;
@ -464,6 +465,15 @@ export function isBackspace(data: string): boolean {
return data === "\x7f" || data === "\x08" || matchesKittySequence(data, CODEPOINTS.backspace, 0);
}
/**
* Check if input matches Shift+Backspace (Kitty protocol).
* Returns true so caller can treat it as regular backspace.
* Ignores lock key bits.
*/
export function isShiftBackspace(data: string): boolean {
return matchesKittySequence(data, CODEPOINTS.backspace, MODIFIERS.shift);
}
/**
* Check if input matches Shift+Enter.
* Ignores lock key bits.
@ -480,6 +490,15 @@ export function isAltEnter(data: string): boolean {
return data === Keys.ALT_ENTER || data === "\x1b\r" || matchesKittySequence(data, CODEPOINTS.enter, MODIFIERS.alt);
}
/**
* Check if input matches Shift+Space (Kitty protocol).
* Returns true so caller can insert a regular space.
* Ignores lock key bits.
*/
export function isShiftSpace(data: string): boolean {
return matchesKittySequence(data, CODEPOINTS.space, MODIFIERS.shift);
}
/**
* Check if input matches Option/Alt+Left (word navigation).
* Handles multiple formats including Kitty protocol.
@ -545,3 +564,12 @@ export function isEnd(data: string): boolean {
export function isDelete(data: string): boolean {
return data === "\x1b[3~" || matchesKittySequence(data, FUNCTIONAL_CODEPOINTS.delete, 0);
}
/**
* Check if input matches Shift+Delete (Kitty protocol).
* Returns true so caller can treat it as regular delete.
* Ignores lock key bits.
*/
export function isShiftDelete(data: string): boolean {
return matchesKittySequence(data, FUNCTIONAL_CODEPOINTS.delete, MODIFIERS.shift);
}