import { EventEmitter } from '../../stencil-public-runtime';
declare const ChatInput_base: abstract new (...args: any[]) => {
    componentDidLoad(): void;
    disconnectedCallback(): void;
    hostElement?: import("@stencil/core/internal").HTMLStencilElement;
    connectedCallback?(): void;
    componentWillRender?(): Promise<void> | void;
    componentDidRender?(): void;
    componentWillLoad?(): Promise<void> | void;
    componentShouldUpdate?(newVal: any, oldVal: any, propName: string): boolean | void;
    componentWillUpdate?(): Promise<void> | void;
    componentDidUpdate?(): void;
    render?(): any;
} & import("../utils/internal/component").StencilLifecycle & {
    $internal_id: number;
    getHostElementId(): string;
    hostElement?: import("@stencil/core/internal").HTMLStencilElement;
    connectedCallback?(): void;
    disconnectedCallback?(): void;
    componentWillRender?(): Promise<void> | void;
    componentDidRender?(): void;
    componentWillLoad?(): Promise<void> | void;
    componentDidLoad?(): void;
    componentShouldUpdate?(newVal: any, oldVal: any, propName: string): boolean | void;
    componentWillUpdate?(): Promise<void> | void;
    componentDidUpdate?(): void;
    render?(): any;
};
/**
 * @since 5.2.0
 * @form-ready
 * @slot follow-up - Optional refresh action and follow-up prompt buttons displayed above the chat input
 * @slot attachments - Attachments displayed above the prompt text area
 * @slot start - Element will be displayed in the left action area
 * @slot end - Element will be displayed in the right action area before the submit button
 */
export declare class ChatInput extends ChatInput_base {
    hostElement: HTMLIxChatInputElement;
    formInternals: ElementInternals;
    /**
     * The state of the chat input, which can be either 'input' or 'processing'.
     */
    state?: 'input' | 'processing';
    /**
     * The name of the chat input.
     */
    name?: string;
    /**
     * The placeholder text for the chat input.
     */
    placeholder: string;
    /**
     * The value of the chat input.
     */
    value: string;
    /**
     * Specifies whether the chat input is disabled.
     */
    disabled: boolean;
    /**
     * Specifies whether the chat input is readonly.
     */
    readonly: boolean;
    /**
     * Accessible label for the native textarea.
     */
    textareaLabel: string;
    /**
     * The maximum length of the chat input.
     */
    maxLength?: number;
    /**
     * Character limit used for the optional inline character limit message.
     * Falls back to `maxLength` when not set.
     */
    characterLimit?: number;
    /**
     * i18n label for the hard character limit message.
     * Use `{current}` and `{limit}` placeholders to place the values in any order.
     */
    i18nCharacterLimitReached: string;
    /**
     * i18n label for the soft character limit warning.
     * Use `{current}` and `{limit}` placeholders to place the values in any order.
     */
    i18nCharacterLimitWarning: string;
    /**
     * Percentage of the character limit that triggers the soft warning. Define a number between 0 and 1 (e.g. 0.8 for 80%).
     */
    characterLimitWarningThreshold: number;
    /**
     * Minimum number of visible text rows.
     */
    minRows: number;
    /**
     * Maximum number of visible text rows before the input becomes scrollable.
     */
    maxRows: number;
    /**
     * If true, pressing Enter inserts a line break instead of submitting the prompt.
     */
    insertLineBreakOnEnter: boolean;
    /**
     * Disclaimer text displayed below the chat input.
     */
    disclaimer: string;
    /**
     * Event emitted when the value of the chat input changes.
     */
    valueChange: EventEmitter<string>;
    /**
     * Event emitted when the chat input loses focus.
     */
    ixBlur: EventEmitter<void>;
    /**
     * Event emitted when the chat input loses focus and the value has changed.
     */
    ixChange: EventEmitter<string>;
    /**
     * Event emitted when the prompt is submitted by the send button or Enter key.
     */
    promptSubmit: EventEmitter<string>;
    /** @internal */
    initialValue?: string;
    hasAttachments: boolean;
    hasAttachmentScrollbar: boolean;
    hasFollowUp: boolean;
    private readonly attachmentsRef;
    private readonly textareaRef;
    private attachmentResizeObserver?;
    private attachmentMutationObserver?;
    private isAttachmentScrollbarUpdateQueued;
    componentWillLoad(): void;
    componentDidLoad(): void;
    componentDidRender(): void;
    disconnectedCallback(): void;
    onValueChange(value: string): void;
    onRowsChange(): void;
    updateFormInternalValue(value: string): void;
    /** @internal */
    getAssociatedFormElement(): Promise<HTMLFormElement | null>;
    /**
     * Returns the native textarea element used by the chat input.
     * @since 5.1.0
     */
    getNativeInputElement(): Promise<HTMLTextAreaElement>;
    /**
     * Focuses the chat input.
     * @since 5.1.0
     */
    focusInput(): Promise<void>;
    private canSubmit;
    private emitIxChangeIfNeeded;
    private submitPrompt;
    private updateTextareaHeight;
    private getCharacterLimit;
    private getNormalizedCharacterLimitWarningThreshold;
    private isSoftCharacterLimitWarning;
    private isCharacterLimitReached;
    private getCharacterLimitMessage;
    private formatCharacterLimitMessage;
    private getCharacterLimitState;
    private handleKeyDown;
    private renderCharacterLimit;
    private handleAttachmentsSlotChange;
    private handleFollowUpSlotChange;
    private hasAssignedContent;
    private updateHasFollowUp;
    private initAttachmentResizeObserver;
    private initAttachmentMutationObserver;
    private scheduleAttachmentScrollbarUpdate;
    private updateAttachmentScrollbar;
    render(): any;
}
export {};