fix: keep caption shortcuts outside component

packages/studio/src/captions/components/CaptionOverlay.tsx

@@ -1,6 +1,7 @@
 import { memo, useState, useCallback, useRef } from "react";
 import { useCaptionStore } from "../store";
 import { useMountEffect } from "../../hooks/useMountEffect";
+import { shouldHandleCaptionNudgeKey } from "../keyboard";
 
 interface CaptionOverlayProps {
   iframeRef: React.RefObject<HTMLIFrameElement | null>;
@@ -251,14 +252,6 @@ function syncToStore(segmentId: string, el: HTMLElement, iframeWin: Window) {
 
 const HANDLE = 8;
 const ROTATION_OFFSET = 20; // px above the selection box
-const CAPTION_NUDGE_KEYS = new Set(["ArrowUp", "ArrowDown", "ArrowLeft", "ArrowRight"]);
-
-type CaptionNudgeKeyEvent = Pick<KeyboardEvent, "altKey" | "ctrlKey" | "metaKey" | "key">;
-
-export function shouldHandleCaptionNudgeKey(event: CaptionNudgeKeyEvent): boolean {
-  if (event.metaKey || event.ctrlKey || event.altKey) return false;
-  return CAPTION_NUDGE_KEYS.has(event.key);
-}
 
 export const CaptionOverlay = memo(function CaptionOverlay({ iframeRef }: CaptionOverlayProps) {
   const isEditMode = useCaptionStore((s) => s.isEditMode);

packages/studio/src/captions/keyboard.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { shouldHandleCaptionNudgeKey } from "./CaptionOverlay";
+import { shouldHandleCaptionNudgeKey } from "./keyboard";
 
 function mockKeyboardEvent(
   key: string,

packages/studio/src/captions/keyboard.ts

@@ -0,0 +1,8 @@
+const CAPTION_NUDGE_KEYS = new Set(["ArrowUp", "ArrowDown", "ArrowLeft", "ArrowRight"]);
+
+type CaptionNudgeKeyEvent = Pick<KeyboardEvent, "altKey" | "ctrlKey" | "metaKey" | "key">;
+
+export function shouldHandleCaptionNudgeKey(event: CaptionNudgeKeyEvent): boolean {
+  if (event.metaKey || event.ctrlKey || event.altKey) return false;
+  return CAPTION_NUDGE_KEYS.has(event.key);
+}