import { Observable } from 'rxjs';
import { InjectionToken } from '@angular/core';
import { PgSubscriptMessagesComponent } from './pg-subscript-messages.component';
import { PgSubscriptStateCalculator } from './pg-subscript-state-calculator';
import { ValidationErrors } from '@angular/forms';
import * as i0 from "@angular/core";
export interface PgSubscriptController {
    checkSubscriptState(host: PgSubscriptMessagesComponent, animate: boolean): any;
    shownSubscriptMessage$: any;
}
export declare class DefaultSubscriptController implements PgSubscriptController {
    pgSubscriptStateCalculator: PgSubscriptStateCalculator;
    readonly messageLineHeight = 24;
    private _shownSubscriptMessage;
    shownSubscriptMessage$: Observable<{
        value: string;
        type: 'hint' | 'error';
        errorCode?: ValidationErrors;
    }>;
    constructor(pgSubscriptStateCalculator: PgSubscriptStateCalculator);
    checkSubscriptState(host: PgSubscriptMessagesComponent, animate?: boolean): any;
    private animateMessageState;
    private _setSubscriptStyleToState;
    private _getTargetSubscriptWrapperHeight;
    private _shouldSkipFirstLineHeightCalculation;
    static ɵfac: i0.ɵɵFactoryDef<DefaultSubscriptController, never>;
    static ɵprov: i0.ɵɵInjectableDef<DefaultSubscriptController>;
}
export declare const PG_SUBSCRIPT_STATE_CONTROLLER_TOKEN: InjectionToken<PgSubscriptController>;
export declare const PG_SUBSCRIPT_STATE_CONTROLLER_PROVIDER: {
    provide: InjectionToken<PgSubscriptController>;
    useClass: typeof DefaultSubscriptController;
};