/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 */
import { LexicalEditor } from 'lexical';
import { ListItemNode, ListNode } from './';
import { ListType } from './LexicalListNode';
/**
 * Inserts a new ListNode. If the selection's anchor node is an empty ListItemNode and is a child of
 * the root/shadow root, it will replace the ListItemNode with a ListNode and the old ListItemNode.
 * Otherwise it will replace its parent with a new ListNode and re-insert the ListItemNode and any previous children.
 * If the selection's anchor node is not an empty ListItemNode, it will add a new ListNode or merge an existing ListNode,
 * unless the the node is a leaf node, in which case it will attempt to find a ListNode up the branch and replace it with
 * a new ListNode, or create a new ListNode at the nearest root/shadow root.
 * @param editor - The lexical editor.
 * @param listType - The type of list, "number" | "bullet" | "check".
 */
export declare function insertList(editor: LexicalEditor, listType: ListType): void;
/**
 * A recursive function that goes through each list and their children, including nested lists,
 * appending list2 children after list1 children and updating ListItemNode values.
 * @param list1 - The first list to be merged.
 * @param list2 - The second list to be merged.
 */
export declare function mergeLists(list1: ListNode, list2: ListNode): void;
/**
 * Searches for the nearest ancestral ListNode and removes it. If selection is an empty ListItemNode
 * it will remove the whole list, including the ListItemNode. For each ListItemNode in the ListNode,
 * removeList will also generate new ParagraphNodes in the removed ListNode's place. Any child node
 * inside a ListItemNode will be appended to the new ParagraphNodes.
 * @param editor - The lexical editor.
 */
export declare function removeList(editor: LexicalEditor): void;
/**
 * Takes the value of a child ListItemNode and makes it the value the ListItemNode
 * should be if it isn't already. Also ensures that checked is undefined if the
 * parent does not have a list type of 'check'.
 * @param list - The list whose children are updated.
 */
export declare function updateChildrenListItemValue(list: ListNode): void;
/**
 * Merge the next sibling list if same type.
 * <ul> will merge with <ul>, but NOT <ul> with <ol>.
 * @param list - The list whose next sibling should be potentially merged
 */
export declare function mergeNextSiblingListIfSameType(list: ListNode): void;
/**
 * Adds an empty ListNode/ListItemNode chain at listItemNode, so as to
 * create an indent effect. Won't indent ListItemNodes that have a ListNode as
 * a child, but does merge sibling ListItemNodes if one has a nested ListNode.
 * @param listItemNode - The ListItemNode to be indented.
 */
export declare function $handleIndent(listItemNode: ListItemNode): void;
/**
 * Removes an indent by removing an empty ListNode/ListItemNode chain. An indented ListItemNode
 * has a great grandparent node of type ListNode, which is where the ListItemNode will reside
 * within as a child.
 * @param listItemNode - The ListItemNode to remove the indent (outdent).
 */
export declare function $handleOutdent(listItemNode: ListItemNode): void;
/**
 * Attempts to insert a ParagraphNode at selection and selects the new node. The selection must contain a ListItemNode
 * or a node that does not already contain text. If its grandparent is the root/shadow root, it will get the ListNode
 * (which should be the parent node) and insert the ParagraphNode as a sibling to the ListNode. If the ListNode is
 * nested in a ListItemNode instead, it will add the ParagraphNode after the grandparent ListItemNode.
 * Throws an invariant if the selection is not a child of a ListNode.
 * @returns true if a ParagraphNode was inserted succesfully, false if there is no selection
 * or the selection does not contain a ListItemNode or the node already holds text.
 */
export declare function $handleListInsertParagraph(): boolean;