import { Point } from './dom/point';
export interface SelectionLike {
    readonly anchorNode: Node;
    readonly anchorOffset: number;
    readonly focusNode: Node;
    readonly focusOffset: number;
}
export interface NonNullSelection extends Selection, SelectionLike {
    readonly type: 'Caret' | 'Range';
    readonly anchorNode: Node;
    readonly focusNode: Node;
}
export interface PointSelection {
    readonly anchorPoint: Point;
    readonly focusPoint: Point;
}
export declare function isSelectionPresent(selection: Selection | null): selection is NonNullSelection;
export declare function isSelectionCollapsed(selection: SelectionLike): boolean;
export declare function isSelectionBackward(selection: Selection): boolean;
export declare function isSelectionContainedByNode(node: Node, selection: SelectionLike): boolean;
export declare function createSelectionWithPoint(point: Point): SelectionLike | undefined;
export declare function createSelectionWithPoints({ anchorPoint, focusPoint, }: PointSelection): SelectionLike | undefined;
export declare function createSelectionWithRange(range: Range, isBackward?: boolean): SelectionLike;
export declare function createPointsWithSelection(selection: SelectionLike): PointSelection;
/**
 * Returns information about the active selection within the given element.
 *
 * This is helpful for restoring the active selection later, such as after manipulating the DOM.
 */
export declare function createPointsWithSelectionInElement(element: Element): PointSelection | undefined;
export declare function updateSelection(selection: Selection, newSelection: SelectionLike): void;
/**
 * Restores the selection within the given element, if possible.
 */
export declare function updateSelectionInElementWithPoints(element: Element, pointSelection: PointSelection | undefined): void;
export declare function updateSelectionWithRange(selection: Selection, range: Range, isBackward?: boolean): void;
/** Changes <td>[Hello</td><td>]world</td> to <td>[Hello]</td><td>world</td>. */
export declare function maybeMoveFromStartToPreviousEndOfPhrasingContent(range: Range): Range;