import { BlockElement, ContainerElement, SelectedBlock, ContainerSelectedBlocks, SelectionDetail, RichTextElement, CaretDetail, Editor, RangeDetail, BoxElement } from "../../interface";
import RichTextDocument from "../../text/RichTextDocument";
export declare function getSelection(): Selection;
export declare function getRange(): Range | null;
/**
 * 获取 selection 方向
 * @returns number
 * -1: 从后往前
 * 0：collapsed 或 无 Range
 * 1：从前往后
 */
export declare function getSelectionDirect(sel: Selection): number;
export declare function collapseToEnd(): void;
export declare function isCollapsed(): boolean;
export declare function isSelected(): boolean;
export declare function getRangeDetail(range: Range, direction: number): RangeDetail;
export declare function getSelectionDetail(editor: Editor): SelectionDetail;
export declare function selectBlocksWithDirect(startBlock: BlockElement, startOffset: number, endBlock?: BlockElement | null, endOffset?: number, selectionDirect?: number): void;
export declare function selectBlocks(startBlock: BlockElement, startOffset: number, endBlock?: BlockElement | null, endOffset?: number): void;
export declare function selectBlock(block: BlockElement, start: number, end?: number | undefined): void;
export declare function selectBox(block: BlockElement, boxElement: BoxElement): void;
export declare function selectBlockChild(child: Node, start: number, end?: number | undefined): void;
export declare function selectCompositionSpanFillChar(textElement: RichTextElement): void;
export declare function getSelectedBlocksInComplexBlock(complexBlock: BlockElement, range: Range): ContainerSelectedBlocks[];
export declare function getSelectedBlocksInDeep(editor: Editor): SelectedBlock[];
export declare function getSelectedBlocksInRoot(editor: Editor): SelectedBlock[];
export declare function getSelectedTextBlocks(editor: Editor): SelectedBlock[];
export declare function getSelectedRootBlocks(detail: SelectionDetail): BlockElement[];
export declare function getLineHomeOffset(block: BlockElement, blockOffset: number): number;
export declare function getLineEndOffset(block: BlockElement, blockOffset: number): number;
export declare function getOffsetOfLine(block: BlockElement, blockOffset: number): number;
export declare function getFirstLineOffset(block: BlockElement, adviceOffset: number): number;
export declare function getLastLineOffset(block: BlockElement, adviceOffset: number): number;
export declare function getCaretDetail(selection: Selection, block: BlockElement, blockOffset: number, node: Node, nodeOffset: number): CaretDetail;
export interface CaretType {
    type: 'invalid' | 'container' | 'block' | 'block_content' | 'box' | 'complex_block' | 'complex_block_content' | 'in_complex_block' | 'in_embed';
    block?: BlockElement;
    container?: ContainerElement;
    nearbyContainer?: ContainerElement;
}
export declare function getCaretType(node: Node): CaretType;
export declare function tryMoveCaretToBlock(node: Node, nodeOffset: number, type: 'start' | 'end'): {
    block?: BlockElement;
    offset?: number;
};
export declare function isEqualSelectionDetail(detailA: SelectionDetail | null, detailB: SelectionDetail | null): boolean;
export declare function transformBlockOffset(block: BlockElement, oldDoc: RichTextDocument, offsets: number[]): number[];
export declare function isSelectionWritable(editor: Editor, detail: SelectionDetail): boolean;
export declare function getSelectedBlocks(editor: Editor, options: {
    deep: boolean;
}): BlockElement[];
export declare function isLineEndsWithBr(block: BlockElement, offset: number): boolean;