import { Observable } from '@tanbo/stream';
/**
 * Textbus 控制器
 */
export declare class Controller {
    /** 当只读模式变更时触发 */
    onReadonlyStateChange: Observable<boolean>;
    /** 是否只读 */
    get readonly(): boolean;
    set readonly(b: boolean);
    private _readonly;
    private readonlyStateChangeEvent;
    constructor(readonly: boolean);
}