import { AfterViewInit, ChangeDetectorRef, ElementRef, EventEmitter, OnChanges, OnDestroy, OnInit, Renderer2, SimpleChanges } from '@angular/core';
import { NgControl } from '@angular/forms';
import { TextFieldUtilityService } from '../text-field-utility.service';
import { NativeTextFieldDirective } from '../native-text-field.directive';
import * as i0 from "@angular/core";
export declare class TextareaComponent extends NativeTextFieldDirective implements OnInit, OnChanges, AfterViewInit, OnDestroy {
    protected element: ElementRef;
    protected parentControl: NgControl;
    protected cdr: ChangeDetectorRef;
    protected textFieldUtility: TextFieldUtilityService;
    protected renderer: Renderer2;
    autoHeight: boolean;
    resizable: boolean;
    rows: number;
    resizing: EventEmitter<DOMRect>;
    set maxRows(max: number);
    private _maxRows?;
    set maxHeight(max: number | null | undefined);
    get maxHeight(): number | null | undefined;
    private _maxHeight?;
    autoMaxHeight: number | null | undefined;
    fieldType: string;
    private _lineHeight;
    private _verticalPadding;
    private resizeObserver;
    constructor(element: ElementRef, parentControl: NgControl, cdr: ChangeDetectorRef, textFieldUtility: TextFieldUtilityService, renderer: Renderer2);
    ngOnChanges(changes: SimpleChanges): void;
    ngOnInit(): void;
    ngAfterViewInit(): void;
    ngOnDestroy(): void;
    setDisabledState(isDisabled: boolean): void;
    _computeMaxHeight(): void;
    private _cacheElementStyle;
    static ɵfac: i0.ɵɵFactoryDeclaration<TextareaComponent, [null, { optional: true; self: true; }, null, null, null]>;
    static ɵcmp: i0.ɵɵComponentDeclaration<TextareaComponent, "pa-textarea", never, { "autoHeight": { "alias": "autoHeight"; "required": false; }; "resizable": { "alias": "resizable"; "required": false; }; "rows": { "alias": "rows"; "required": false; }; "maxRows": { "alias": "maxRows"; "required": false; }; "maxHeight": { "alias": "maxHeight"; "required": false; }; }, { "resizing": "resizing"; }, never, ["*"], false, never>;
    static ngAcceptInputType_autoHeight: unknown;
    static ngAcceptInputType_resizable: unknown;
    static ngAcceptInputType_rows: unknown;
}