/**
 * 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 type { CommandPayloadType, EditorThemeClasses, Klass, LexicalCommand, MutatedNodes, MutationListeners, NodeMutation, RegisteredNode, RegisteredNodes } from './LexicalEditor';
import type { EditorState } from './LexicalEditorState';
import type { LexicalNode, NodeKey } from './LexicalNode';
import type { GridSelection, NodeSelection, PointType, RangeSelection } from './LexicalSelection';
import type { RootNode } from './nodes/LexicalRootNode';
import type { TextFormatType, TextNode } from './nodes/LexicalTextNode';
import { DecoratorNode, ElementNode, LineBreakNode } from '.';
import { LexicalEditor } from './LexicalEditor';
export declare const emptyFunction: () => void;
export declare function resetRandomKey(): void;
export declare function generateRandomKey(): string;
export declare function getRegisteredNodeOrThrow(editor: LexicalEditor, nodeType: string): RegisteredNode;
export declare const isArray: (arg: any) => arg is any[];
export declare const scheduleMicroTask: (fn: () => void) => void;
export declare function isSelectionWithinEditor(editor: LexicalEditor, anchorDOM: null | Node, focusDOM: null | Node): boolean;
export declare function getNearestEditorFromDOMNode(node: Node | null): LexicalEditor | null;
export declare function getTextDirection(text: string): 'ltr' | 'rtl' | null;
export declare function $isTokenOrInertOrSegmented(node: TextNode): boolean;
export declare function $isTokenOrInert(node: TextNode): boolean;
export declare function getDOMTextNode(element: Node | null): Text | null;
export declare function toggleTextFormatType(format: number, type: TextFormatType, alignWithFormat: null | number): number;
export declare function $isLeafNode(node: LexicalNode | null | undefined): node is TextNode | LineBreakNode | DecoratorNode<unknown>;
export declare function $setNodeKey(node: LexicalNode, existingKey: NodeKey | null | undefined): void;
export declare function removeFromParent(writableNode: LexicalNode): void;
export declare function internalMarkNodeAsDirty(node: LexicalNode): void;
export declare function internalMarkSiblingsAsDirty(node: LexicalNode): void;
export declare function $setCompositionKey(compositionKey: null | NodeKey): void;
export declare function $getCompositionKey(): null | NodeKey;
export declare function $getNodeByKey<T extends LexicalNode>(key: NodeKey, _editorState?: EditorState): T | null;
export declare function getNodeFromDOMNode(dom: Node, editorState?: EditorState): LexicalNode | null;
export declare function $getNearestNodeFromDOMNode(startingDOM: Node, editorState?: EditorState): LexicalNode | null;
export declare function cloneDecorators(editor: LexicalEditor): Record<NodeKey, unknown>;
export declare function getEditorStateTextContent(editorState: EditorState): string;
export declare function markAllNodesAsDirty(editor: LexicalEditor, type: string): void;
export declare function $getRoot(): RootNode;
export declare function internalGetRoot(editorState: EditorState): RootNode;
export declare function $setSelection(selection: null | RangeSelection | NodeSelection | GridSelection): void;
export declare function $flushMutations(): void;
export declare function getNodeFromDOM(dom: Node): null | LexicalNode;
export declare function getTextNodeOffset(node: TextNode, moveSelectionToEnd: boolean): number;
export declare function doesContainGrapheme(str: string): boolean;
export declare function getEditorsToPropagate(editor: LexicalEditor): Array<LexicalEditor>;
export declare function createUID(): string;
export declare function $updateSelectedTextFromDOM(isCompositionEnd: boolean, data?: string): void;
export declare function $updateTextNodeFromDOMContent(textNode: TextNode, textContent: string, anchorOffset: null | number, focusOffset: null | number, compositionEnd: boolean): void;
export declare function $shouldPreventDefaultAndInsertText(selection: RangeSelection, text: string): boolean;
export declare function isTab(keyCode: number, altKey: boolean, ctrlKey: boolean, metaKey: boolean): boolean;
export declare function isBold(keyCode: number, altKey: boolean, metaKey: boolean, ctrlKey: boolean): boolean;
export declare function isItalic(keyCode: number, altKey: boolean, metaKey: boolean, ctrlKey: boolean): boolean;
export declare function isUnderline(keyCode: number, altKey: boolean, metaKey: boolean, ctrlKey: boolean): boolean;
export declare function isParagraph(keyCode: number, shiftKey: boolean): boolean;
export declare function isLineBreak(keyCode: number, shiftKey: boolean): boolean;
export declare function isOpenLineBreak(keyCode: number, ctrlKey: boolean): boolean;
export declare function isDeleteWordBackward(keyCode: number, altKey: boolean, ctrlKey: boolean): boolean;
export declare function isDeleteWordForward(keyCode: number, altKey: boolean, ctrlKey: boolean): boolean;
export declare function isDeleteLineBackward(keyCode: number, metaKey: boolean): boolean;
export declare function isDeleteLineForward(keyCode: number, metaKey: boolean): boolean;
export declare function isDeleteBackward(keyCode: number, altKey: boolean, metaKey: boolean, ctrlKey: boolean): boolean;
export declare function isDeleteForward(keyCode: number, ctrlKey: boolean, shiftKey: boolean, altKey: boolean, metaKey: boolean): boolean;
export declare function isUndo(keyCode: number, shiftKey: boolean, metaKey: boolean, ctrlKey: boolean): boolean;
export declare function isRedo(keyCode: number, shiftKey: boolean, metaKey: boolean, ctrlKey: boolean): boolean;
export declare function isCopy(keyCode: number, shiftKey: boolean, metaKey: boolean, ctrlKey: boolean): boolean;
export declare function isCut(keyCode: number, shiftKey: boolean, metaKey: boolean, ctrlKey: boolean): boolean;
export declare function isMoveBackward(keyCode: number, ctrlKey: boolean, altKey: boolean, metaKey: boolean): boolean;
export declare function isMoveToStart(keyCode: number, ctrlKey: boolean, shiftKey: boolean, altKey: boolean, metaKey: boolean): boolean;
export declare function isMoveForward(keyCode: number, ctrlKey: boolean, altKey: boolean, metaKey: boolean): boolean;
export declare function isMoveToEnd(keyCode: number, ctrlKey: boolean, shiftKey: boolean, altKey: boolean, metaKey: boolean): boolean;
export declare function isMoveUp(keyCode: number, ctrlKey: boolean, metaKey: boolean): boolean;
export declare function isMoveDown(keyCode: number, ctrlKey: boolean, metaKey: boolean): boolean;
export declare function isModifier(ctrlKey: boolean, shiftKey: boolean, altKey: boolean, metaKey: boolean): boolean;
export declare function isSpace(keyCode: number): boolean;
export declare function controlOrMeta(metaKey: boolean, ctrlKey: boolean): boolean;
export declare function isReturn(keyCode: number): boolean;
export declare function isBackspace(keyCode: number): boolean;
export declare function isEscape(keyCode: number): boolean;
export declare function isDelete(keyCode: number): boolean;
export declare function getCachedClassNameArray(classNamesTheme: EditorThemeClasses, classNameThemeType: string): Array<string>;
export declare function setMutatedNode(mutatedNodes: MutatedNodes, registeredNodes: RegisteredNodes, mutationListeners: MutationListeners, node: LexicalNode, mutation: NodeMutation): void;
export declare function $nodesOfType<T extends LexicalNode>(klass: Klass<T>): Array<LexicalNode>;
export declare function $getDecoratorNode(focus: PointType, isBackward: boolean): null | LexicalNode;
export declare function isFirefoxClipboardEvents(): boolean;
export declare function dispatchCommand<TCommand extends LexicalCommand<unknown>, TPayload extends CommandPayloadType<TCommand>>(editor: LexicalEditor, type: TCommand, payload: TPayload): boolean;
export declare function $textContentRequiresDoubleLinebreakAtEnd(node: ElementNode): boolean;
export declare function getElementByKeyOrThrow(editor: LexicalEditor, key: NodeKey): HTMLElement;
export declare function scrollIntoViewIfNeeded(editor: LexicalEditor, anchor: PointType, rootElement: HTMLElement, tags: Set<string>): void;
export declare function $hasUpdateTag(tag: string): boolean;
export declare function $addUpdateTag(tag: string): void;
export declare function $maybeMoveChildrenSelectionToParent(parentNode: LexicalNode, offset?: number): RangeSelection | NodeSelection | GridSelection | null;