the claude code sourcemaps leaked march 31
1import { useEffect, useRef } from 'react'
2import { useNotifications } from '../context/notifications.js'
3import { getShortcutDisplay } from '../keybindings/shortcutFormat.js'
4import { hasImageInClipboard } from '../utils/imagePaste.js'
5
6const NOTIFICATION_KEY = 'clipboard-image-hint'
7// Small debounce to batch rapid focus changes
8const FOCUS_CHECK_DEBOUNCE_MS = 1000
9// Don't show the hint more than once per this interval
10const HINT_COOLDOWN_MS = 30000
11
12/**
13 * Hook that shows a notification when the terminal regains focus
14 * and the clipboard contains an image.
15 *
16 * @param isFocused - Whether the terminal is currently focused
17 * @param enabled - Whether image paste is enabled (onImagePaste is defined)
18 */
19export function useClipboardImageHint(
20 isFocused: boolean,
21 enabled: boolean,
22): void {
23 const { addNotification } = useNotifications()
24 const lastFocusedRef = useRef(isFocused)
25 const lastHintTimeRef = useRef(0)
26 const checkTimeoutRef = useRef<NodeJS.Timeout | null>(null)
27
28 useEffect(() => {
29 // Only trigger on focus regain (was unfocused, now focused)
30 const wasFocused = lastFocusedRef.current
31 lastFocusedRef.current = isFocused
32
33 if (!enabled || !isFocused || wasFocused) {
34 return
35 }
36
37 // Clear any pending check
38 if (checkTimeoutRef.current) {
39 clearTimeout(checkTimeoutRef.current)
40 }
41
42 // Small debounce to batch rapid focus changes
43 checkTimeoutRef.current = setTimeout(
44 async (checkTimeoutRef, lastHintTimeRef, addNotification) => {
45 checkTimeoutRef.current = null
46
47 // Check cooldown to avoid spamming the user
48 const now = Date.now()
49 if (now - lastHintTimeRef.current < HINT_COOLDOWN_MS) {
50 return
51 }
52
53 // Check if clipboard has an image (async osascript call)
54 if (await hasImageInClipboard()) {
55 lastHintTimeRef.current = now
56 addNotification({
57 key: NOTIFICATION_KEY,
58 text: `Image in clipboard · ${getShortcutDisplay('chat:imagePaste', 'Chat', 'ctrl+v')} to paste`,
59 priority: 'immediate',
60 timeoutMs: 8000,
61 })
62 }
63 },
64 FOCUS_CHECK_DEBOUNCE_MS,
65 checkTimeoutRef,
66 lastHintTimeRef,
67 addNotification,
68 )
69
70 return () => {
71 if (checkTimeoutRef.current) {
72 clearTimeout(checkTimeoutRef.current)
73 checkTimeoutRef.current = null
74 }
75 }
76 }, [isFocused, enabled, addNotification])
77}