/** Core */
import { CoreComponent } from "cmf.core/src/core";
/** Angular2 */
import * as ng from "@angular/core";
import { OnValidate, OnValidateArgs } from '../../directives/validator/validator';
export declare const ERROR_CLASS = "text-input-error";
/**
 * @whatItDoes
 * Comments basic component.
 *
 * @howToUse
 * This component is used with the inputs and outputs mentioned below.
 *
 * ### Inputs
 * `string` : **comments** - Comments textual content ;
 * `boolean` : **required** - Defines if the comments are required ;
 * `boolean` : **expanded** - Defines if the comments section are expanded .
 *
 * ### Outputs
 * `any` : **comments** - Comments update event .
 *
 * ### Example
 * To use the component, assume this HTML Template as an example:
 *
 * ```HTML
 * <cmf-core-controls-comments [expanded]="commentsExpanded" [required]="commentsRequired" [comments]="comments" (comments)="onCommentsChange($event)">
 * ```
 *
 */
export declare class Comments extends CoreComponent implements OnValidate {
    private _element;
    private _panelBar;
    /**
     * Gets or sets the text area classes
     */
    _textAreaClasses: any;
    /**
    * Comments textual content
    */
    comments: string;
    /**
    * Defines if the comments are required
    */
    required: boolean;
    /**
    * Defines if the comments section are expanded
    */
    expanded: boolean;
    /**
    * Comments update event
    */
    commentsValueChanged: ng.EventEmitter<any>;
    /**
    * @method constructor
    */
    constructor(elementRef: ng.ElementRef, _element: ng.ElementRef);
    /**
     * Internal Validation Method
     */
    private internalValidation;
    panelBarHeaderClicked: (event: any) => void;
    onChange($event: any): void;
    /**
     * On Validate method
     *
     * @param args Validation arguments given by the framework
     */
    onValidate(args: OnValidateArgs): Promise<boolean>;
    /**
     * Resets the styling option of the validation process
     *
     * @see OnValidate interface
     */
    reset(): Promise<boolean>;
}
export declare class CommentsModule {
}