import { FASTElement } from "@microsoft/fast-element";
import { CSSDesignToken } from "@microsoft/fast-foundation";
/**
 * # Textarea
 *
 * The Prompt Text Area control is designed for AI chat features and allows the user to enter and edit multiple lines of text.
 *
 */
export declare class Textarea extends FASTElement {
    svgColor: CSSDesignToken<string>;
    svgColorDisabled: CSSDesignToken<string>;
    /**
     * ## errorMessage
     *
     * For overriding the default error message.
     */
    errorMessage: string;
    /**
     * ## disabled
     *
     * Puts the send button into a disabled state, where user input can still be inputed, but cannot be sent.
     */
    disabled: boolean;
    /**
     * ## maxLength
     *
     * sets the max allowed character count of the text area
     */
    maxLength: number;
    /**
     * ## placeholder
     *
     * sets a placeholder text to queue the user for typing
     */
    placeholder?: string;
    /**
     * 33 showCharacterCount
     *
     * @public boolean
     */
    hideCharacterCount: boolean;
    /**
     * ## name
     *
     * DOM name attribute
     */
    name?: string;
    /**
     * ## hasMaxCharLimit
     *
     * When set to true when the max character limit has been reached
     */
    hasMaxCharLimit?: boolean;
    /**
     * ## _characterCount
     *
     * @private
     *
     * the number of characters currently inputed into the text input
     */
    private _characterCount;
    get characterCount(): number;
    /**
     * ## hasButtons
     *
     * True when buttons are slotted into the buttons slot
     */
    hasButtons?: boolean;
    /**
     * ## buttons
     *
     * An array of html button elements slotted into the buttons slot
     *
     */
    buttons: HTMLElement[];
    buttonsChanged: () => void;
    /**
     * ## hasMessages
     *
     * true when messages are slotted in to the messages slot
     */
    hasMessages?: boolean;
    /**
     * ## messages
     *
     * An array of html elements that have been slotted into the messges area.
     *
     * When messages are slotted in, the hasMessages boolean is set to true and class names are added in the html template.
     */
    messages: HTMLElement[];
    messagesChanged(): void;
    /**
     * ## hasAttachments
     *
     * True when attachments have been slotted into the attachments slot
     */
    hasAttachments?: boolean;
    /**
     * ## attachments
     *
     * An array of html elements slotted into the attachments area
     */
    attachments: HTMLElement[];
    attachmentsChanged(): void;
    /**
     * ## inputRef
     *
     * A reference to the fluent text input.
     */
    inputRef: HTMLTextAreaElement | null | undefined;
    /**
     * ## value
     *
     * The value of the current user input.
     */
    _value: string | undefined;
    get value(): string | undefined;
    set value(newValue: string | undefined);
    /**
     * ## updateControlUiValues
     *
     * Sets the values for characterCount and value. Sets the data-value attribute to the textarea dom element. Resizes the textarea height to match the scroll height of the text area.
     *
     * @param value - string
     * @private
     */
    private updateControlUiValues;
    /**
     * ## handleTextareaKeydown
     *
     * @param inputRef to FluentTextField which is actually FASTTextField
     *
     */
    private handleTextareaInput;
    /**
     * ## handleTextareaPaste
     *
     * handles paste events for the textarea control that's nested inside the fabric-textarea
     */
    private handleTextareaPaste;
    /**
     * ## handleTextareaKeydown
     *
     * Handles keydown events for the textarea control that's nested inside the fabric-textarea
     *
     * @param event - KeyboardEvent
     */
    private handleTextareaKeydown;
    /**
     * ## isTextareaKeyPressed
     *
     * True when a key is pressed in the textarea control that's nested inside the fabric-textarea
     */
    private isTextareaKeyPressed?;
    /**
     * ## handleTextareaEvents
     *
     * adds event handlers for the DOM textarea in the shadowRoot
     */
    private handleTextareaEvents;
    /**
     * ## removeTextareaEvents
     */
    private removeTextareaEvents;
    /**
     * ## handleTextareaHeight
     *
     * Resizes the textarea to accomodate more rows of text. Sets the height to the scroll height
     *
     * Textarea has limitations with fitting content through css, so it's required to calculate the size with javascript
     */
    private handleTextareaHeight;
    /**
     * ## emitSubmitEvent
     *
     * Emits a TextareaSubmitEvent
     */
    private emitSubmitEvent;
    /**
     *
     * ## handleSubmitButton
     *
     * called wben the submit button is pressed
     *
     * @param event
     */
    private handleSubmitButton;
    /**
     * ## handleSubmitButtonEvent
     *
     * Adds an event listener to the submit / send button. Responds to click events.
     */
    private handleSubmitButtonEvent;
    /**
     * ## removeSubmitButtonEvents
     *
     * removes event listeners for button events on submit button
     */
    private removeSubmitButtonEvents;
    /**
     * ## handleKeydown
     *
     * handles keydown events for the root textarea element
     */
    private handleKeydown;
    /**
     * ## handleKeyEvents
     *
     * A keydown event handler for the root fabric-textarea control.
     *
     * @private
     */
    private handleKeyEvents;
    /**
     * ## removeKeyEvents
     *
     * Removes keydown events for the root fluent textarea element
     */
    private removeKeyEvents;
    /**
     * ## andHasMaxCharLimit
     *
     * if hasMaxCharLimit is true set it to false
     */
    private andHasMaxCharLimit;
    /**
     * ## handleClickEvents
     *
     * A click event handler for the root fabric-textarea control.
     *
     * @private
     */
    private handleClickEvents;
    /**
     * ## removeClickEvents
     *
     * removes click events for the root fluent textarea element.
     */
    private removeClickEvents;
    connectedCallback(): void;
    disconnectedCallback(): void;
}
//# sourceMappingURL=textarea.d.ts.map