69 lines
1.5 KiB
TypeScript
69 lines
1.5 KiB
TypeScript
/**
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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*/
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import type {Binding} from '.';
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import type {CollabElementNode} from './CollabElementNode';
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import type {LineBreakNode, NodeKey} from 'lexical';
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import type {Map as YMap} from 'yjs';
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import {$getNodeByKey, $isLineBreakNode} from 'lexical';
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export class CollabLineBreakNode {
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_map: YMap<unknown>;
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_key: NodeKey;
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_parent: CollabElementNode;
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_type: 'linebreak';
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constructor(map: YMap<unknown>, parent: CollabElementNode) {
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this._key = '';
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this._map = map;
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this._parent = parent;
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this._type = 'linebreak';
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}
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getNode(): null | LineBreakNode {
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const node = $getNodeByKey(this._key);
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return $isLineBreakNode(node) ? node : null;
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}
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getKey(): NodeKey {
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return this._key;
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}
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getSharedType(): YMap<unknown> {
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return this._map;
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}
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getType(): string {
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return this._type;
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}
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getSize(): number {
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return 1;
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}
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getOffset(): number {
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const collabElementNode = this._parent;
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return collabElementNode.getChildOffset(this);
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}
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destroy(binding: Binding): void {
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const collabNodeMap = binding.collabNodeMap;
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collabNodeMap.delete(this._key);
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}
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}
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export function $createCollabLineBreakNode(
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map: YMap<unknown>,
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parent: CollabElementNode,
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): CollabLineBreakNode {
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const collabNode = new CollabLineBreakNode(map, parent);
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map._collabNode = collabNode;
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return collabNode;
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}
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