oppi.li
source dump of claude code
1import { createContext } from 'react'
2import type { DOMElement } from '../dom.js'
3
4export type CursorDeclaration = {
5 /** Display column (terminal cell width) within the declared node */
6 readonly relativeX: number
7 /** Line number within the declared node */
8 readonly relativeY: number
9 /** The ink-box DOMElement whose yoga layout provides the absolute origin */
10 readonly node: DOMElement
11}
12
13/**
14 * Setter for the declared cursor position.
15 *
16 * The optional second argument makes `null` a conditional clear: the
17 * declaration is only cleared if the currently-declared node matches
18 * `clearIfNode`. This makes the hook safe for sibling components
19 * (e.g. list items) that transfer focus among themselves — without the
20 * node check, a newly-unfocused item's clear could clobber a
21 * newly-focused sibling's set depending on layout-effect order.
22 */
23export type CursorDeclarationSetter = (
24 declaration: CursorDeclaration | null,
25 clearIfNode?: DOMElement | null,
26) => void
27
28const CursorDeclarationContext = createContext<CursorDeclarationSetter>(
29 () => {},
30)
31
32export default CursorDeclarationContext