| 1 | import { |
| 2 | NodeApi, |
| 3 | PathApi, |
| 4 | type NodeEntry, |
| 5 | type Path, |
| 6 | type TElement, |
| 7 | } from "platejs"; |
| 8 | import { type PlateEditor } from "platejs/react"; |
| 9 | |
| 10 | type ElementWithOptionalId = TElement & { |
| 11 | id?: unknown; |
| 12 | }; |
| 13 | |
| 14 | function findCurrentElementPath( |
| 15 | editor: PlateEditor, |
| 16 | element: TElement, |
| 17 | ): Path | undefined { |
| 18 | const elementId = (element as ElementWithOptionalId).id; |
| 19 | |
| 20 | if (typeof elementId === "string") { |
| 21 | const entry = editor.api.node({ |
| 22 | id: elementId, |
| 23 | at: [], |
| 24 | }) as NodeEntry<TElement> | undefined; |
| 25 | |
| 26 | if (entry) return entry[1]; |
| 27 | } |
| 28 | |
| 29 | return editor.api.findPath(element); |
| 30 | } |
| 31 | |
| 32 | export function getSiblingIndexContext<TParentElement extends TElement>( |
| 33 | editor: PlateEditor, |
| 34 | element: TElement, |
| 35 | fallbackPath: Path, |
| 36 | ) { |
| 37 | const elementPath = findCurrentElementPath(editor, element) ?? fallbackPath; |
| 38 | const parentPath = PathApi.parent(elementPath); |
| 39 | const parentElement = NodeApi.get(editor, parentPath) as |
| 40 | | TParentElement |
| 41 | | undefined; |
| 42 | const index = elementPath.at(-1) ?? fallbackPath.at(-1) ?? 0; |
| 43 | |
| 44 | return { |
| 45 | elementPath, |
| 46 | index, |
| 47 | parentElement, |
| 48 | parentPath, |
| 49 | }; |
| 50 | } |
| 51 |