import { EventEmitter } from "../../stencil-public-runtime";
import { A11yComponent, InputComponent, ThemeableComponent } from "../../common";
import { DuetLanguage, DuetMargin, DuetTextFontWeight, DuetTheme, DuetTooltipDirection } from "../../common-types";
export type DuetTextareaEvent = {
    originalEvent?: Event;
    component: "duet-textarea";
    value: string;
};
/**
 * @slot tooltip - Use to place a tooltip alongside the label.
 */
export declare class DuetTextarea implements ThemeableComponent, InputComponent, A11yComponent {
    /**
     * Own Properties
     */
    private textareaId;
    private proxyId;
    private topCaptionId;
    private topCaptionPlaceholderId;
    private labelId;
    private errorId;
    private characterCountId;
    private visuallyHiddenCounterDebounceMS;
    private nativeInput;
    private isCaptionVisible;
    private disallowPatternRegex;
    private charactersRemainingLabel;
    language: DuetLanguage;
    visuallyHiddenCounterText: string;
    /**
     * Reference to host HTML element.
     */
    element: HTMLElement;
    /**
     * Controls the margin of the component.
     */
    margin: DuetMargin;
    /**
     * Indicates the id of a related component’s visually focused element.
     */
    accessibleActiveDescendant: string;
    /**
     * Indicates what kind of user input completion suggestions are provided.
     */
    accessibleAutocomplete: string;
    /**
     * Use this prop to add an aria-controls attribute. Use the attribute to
     * indicate the id of a component controlled by this component.
     */
    accessibleControls: string;
    /**
     * Aria Details of the component
     */
    accessibleDetails: string;
    /**
     * String of id's that indicate alternative labels elements
     */
    accessibleLabelledBy: string;
    /**
     * Aria description the button
     */
    accessibleDescription: string;
    /**
     * The aria-live attribute for the error message. When the input is validated on blur, use "off", as using "polite" or "assertive"
     * makes the screen reader read the error message twice. When the input is validated on submit, use "polite", as "off" would leave
     * the messages unread by screen readers. Use "assertive" only in those rare cases when "polite" would leave the error message
     * unread by screen readers.
     */
    accessibleLiveError: "off" | "polite" | "assertive";
    /**
     * Indicates the id of a component owned by the textarea.
     */
    accessibleOwns: string;
    /**
     * Indicates the id of a component that describes the input.
     */
    accessibleDescribedBy: string;
    /**
     * Theme of the textarea.
     */
    theme: DuetTheme;
    /**
     * Expands the textarea to fill 100% of the container width.
     */
    expand: boolean;
    /**
     * Makes the textarea component disabled. This prevents users from being able
     * to interact with the textarea, and conveys its inactive state to assistive
     * technologies.
     */
    disabled: boolean;
    /**
     * Adds a unique identifier for the textarea.
     */
    identifier: string;
    /**
     * Set whether the textarea is required or not. Please note that this is required for
     * accessible inputs when the user is required to fill them. When using this property
     * you need to also set “novalidate” attribute to your form element to prevent
     * browser from displaying its own validation errors.
     */
    required: boolean;
    /**
     * Label for the textarea.
     */
    label: string;
    /**
     * Color of the label.
     */
    labelColor: string;
    /**
     * Font weight of the label.
     */
    labelWeight: DuetTextFontWeight;
    /**
     * Visually hide the label, but still show it to screen readers.
     */
    labelHidden: boolean;
    /**
     * Name of the textarea.
     */
    name: string;
    /**
     * Hint text to display.
     */
    placeholder: string;
    /**
     * Caption (underneath label) that can be set as a way of adding extra information
     */
    caption: string;
    /**
     * If form input field has a placeholder text, and user types anything (causing the text to dissapear),
     * settings this to true will "echo" it into the caption slot - this option will be false by default for the next few versions, but will eventually be true by default (scheduled for 4.30.0)
     */
    echoPlaceholder: boolean;
    /**
     * Rows attribute for the contained native textarea element. If set, overrides the default style's minheight.
     */
    rows: number;
    /**
     * Use maxlength to specify the maximum length of the value that can be entered.
     */
    maxlength: number;
    /**
     * Use minlength to specify the minimum length of the value that can be entered.
     */
    minlength: number;
    /**
     * Display the textarea in error state along with an error message.
     */
    error: string;
    /**
     * This is a proxy for the enclosed native textarea's validity
     */
    get validity(): ValidityState;
    /**
     * Defines a specific role attribute for the input.
     */
    role: string | null;
    /**
     * Tooltip to display next to the label of the input.
     */
    tooltip: string;
    /**
     * With direction setting you can force the tooltip to always open towards left
     * or right instead of automatically determining the direction.
     */
    tooltipDirection: DuetTooltipDirection;
    /**
     * Value of the textarea.
     */
    value: string;
    valueChange(newValue: string, oldValue: string): void;
    /**
     * A regular expression that matches any characters which should be *disallowed*.
     * This differs from `pattern`, as it actively prevents users entering any characters which match the regular expression.
     * e.g. the following will disallow any non-numeric characters `[^0-9]`
     */
    disallowPattern: string;
    disallowedPatternChange(): void;
    /**
     * Display character counter. Must be used in conjunction with  **maxlength** property.
     */
    counter: boolean;
    /**
     * @deprecated, the visually hidden counter label is no longer changeable
     */
    counterLabel: string;
    /**
     * Emitted when a keyboard input ocurred.
     */
    duetInput: EventEmitter<DuetTextareaEvent>;
    /**
     * Emitted when the value has changed.
     */
    duetChange: EventEmitter<DuetTextareaEvent>;
    /**
     * Emitted when the input loses focus.
     */
    duetBlur: EventEmitter<DuetTextareaEvent>;
    /**
     * Emitted when the input has focus.
     */
    duetFocus: EventEmitter<DuetTextareaEvent>;
    /**
     * Component lifecycle events.
     */
    componentWillLoad(): void;
    private updateVisuallyHiddenCounterText;
    componentDidRender(): void;
    /**
     * Component event handling.
     */
    private handleInput;
    private handleChange;
    private handleBlur;
    private handleFocus;
    /**
     * When the character limit has been reached and key is pressed, switch the
     * visually hidden label temprorily to empty so it is re-read.
     */
    private handleKeyDown;
    private getDescribedBy;
    /**
     * Sets focus on the specified `duet-textarea`. Use this method instead of the global
     * `textarea.focus()`.
     */
    setFocus(options?: FocusOptions): Promise<void>;
    /**
     * render() function
     * Always the last one in the class.
     */
    render(): any;
}