import { AbstractControl } from '@angular/forms';
import { Destroyable, IDestroyable, Observer, Snapshot } from '@marcura/dadesk-ui-common';
import { Observable, Observer as RxObserver, Subscription } from 'rxjs';
export declare abstract class AbstractControlWrapper<T extends AbstractControl> extends Destroyable {
    /**
     * The native Angular form control that this form class is based on
     */
    readonly ngControl: T;
    readonly observer: Observer;
    private readonly _isDisabled;
    get isDisabled$(): Snapshot<boolean>;
    private readonly _isEnabled;
    get isEnabled$(): Snapshot<boolean>;
    private readonly _isValid;
    get isValid$(): Snapshot<boolean>;
    private readonly _isInvalid;
    get isInvalid$(): Snapshot<boolean>;
    private readonly _isPending;
    get isPending$(): Snapshot<boolean>;
    constructor(
    /**
     * The native Angular form control that this form class is based on
     */
    ngControl: T);
    /**
     * Adds a destroyable object to the list of destroyables, to be destroyed when the `destroy` method is called.
     * It's an alias for calling `this.observer.add(destroyable)`.
     *
     * @param destroyable - The destroyable object to add.
     * @returns The added destroyable object.
     * @throws {Error} If the destroyable object is already added.
     */
    addDestroyable<TDestroyable extends IDestroyable>(destroyable: TDestroyable): TDestroyable;
    /**
     * Destroys the object, internal observer and all registered destroyable objects.
     */
    destroy(): void;
    /**
     * Listens to an observable and unsubscribes when the form is destroyed.
     */
    listen<TValue>(observable: Observable<TValue>, observer?: Partial<RxObserver<TValue>> | ((value: TValue) => void)): Subscription;
    /**
     * Unsubscribes a previously registered subscription in internal observer.
     */
    unlisten(subscription: Subscription): void;
}