import { FormControl, NgControl } from '@angular/forms';
import { Observable } from 'rxjs';
/**
 * An interface to enforce the needs of a control when working inside of a {@link TsFormFieldComponent}
 */
export declare abstract class TsFormFieldControl<T> {
    /**
     * The stored value of the control
     */
    value: T | null | undefined;
    /**
     * Stream that emits whenever the state of the control changes such that the
     * parent {@link TsFormFieldComponent} needs to run change detection.
     */
    readonly stateChanges: Observable<void>;
    /**
     * Stream that emits whenever the label of the control changes such that the
     * parent {@link TsFormFieldComponent} needs to update its outline gap.
     */
    readonly labelChanges: Observable<void>;
    /**
     * The element ID for this control
     */
    readonly id: string;
    /**
     * The NgControl for this control
     */
    readonly ngControl: NgControl | null;
    /**
     * Whether the control is focused
     */
    readonly focused: boolean;
    /**
     * Whether the control is empty
     */
    readonly empty: boolean;
    /**
     * Whether the `TsFormFieldComponent` label should try to float
     */
    readonly shouldLabelFloat: boolean;
    /**
     * Whether the control is required
     */
    readonly isRequired: boolean;
    /**
     * Whether the control is disabled
     */
    readonly isDisabled: boolean;
    /**
     * Whether the input is currently in an autofilled state. If property is not present on the control it is assumed to be false.
     */
    readonly autofilled?: boolean;
    /**
     * An optional form control
     */
    readonly formControl?: FormControl;
    /**
     * Handles a click on the control's container
     */
    abstract onContainerClick(event: MouseEvent): void;
}