import { Editor } from "./editor";
/**
 * @return void 或 true 阻止默认事件
 */
type KeyHandlerFn = (event: KeyboardEvent) => boolean | void;
export declare class Keyboard {
    editor: Editor;
    dom: Document | HTMLElement;
    pause: boolean;
    classNameEffect: string[];
    keyMap: Map<string, KeyHandlerFn>;
    constructor(editor: Editor, dom?: HTMLElement | Document);
    key(key: string, handler: KeyHandlerFn): void;
    isEffect(event: KeyboardEvent): boolean;
    private onKeydown;
    listen(): void;
    getKey(event: KeyboardEvent): string;
    getModifierKey(event: KeyboardEvent): string;
    destroy(): void;
}
export {};