import { FormControlInstance, FormControlValue } from './form-control.mixin.js';
export interface SelectOption extends HTMLElement {
    value: string;
    selected: boolean;
    disabled: boolean;
    textContent: string | null;
    hasAttribute(name: string): boolean;
}
interface FormControlSelectInstance extends FormControlInstance {
    options: SelectOption[];
    selectedOptions: SelectOption[];
    selectedIndex: number;
    length: number;
    value: string | FormData;
    updateInitialSelected(): void;
}
export interface SelectFormControlMixin {
    new (...args: any[]): FormControlSelectInstance;
    formAssociated: boolean;
    readonly observedAttributes: string[];
}
interface OptionInstance extends HTMLElement {
    value: string;
    selected: boolean;
    disabled: boolean;
}
export interface OptionMixin {
    new (...args: any[]): OptionInstance;
    readonly observedAttributes: string[];
}
type Constructor = new (...args: any[]) => HTMLElement & {
    connectedCallback?(): void;
    disconnectedCallback?(): void;
    attributeChangedCallback?(name: string, oldValue: string | null, newValue: string | null): void;
    requestUpdate?(name?: string, oldValue?: unknown): void;
} & {
    observedAttributes?: string[];
};
/**
 * Mixin that extends FormControlMixin with select-specific functionality.
 * Provides native HTMLSelectElement-like behavior for custom select components.
 *
 * Features:
 * - options: Returns array of option elements
 * - selectedOptions: Returns array of selected option elements
 * - selectedIndex: Get/set the index of the first selected option
 * - length: Returns the number of options
 * - type: Returns 'select-one' or 'select-multiple'
 * - size: Defaults to 1 (unlike input which defaults to 20)
 * - Multiple select support with FormData for form submission
 */
export declare function SelectFormControlMixin<TBase extends Constructor, T extends FormControlValue>(SuperClass: TBase): TBase & SelectFormControlMixin;
/**
 * Mixin that provides option-specific functionality for custom option elements.
 * Provides native HTMLOptionElement-like behavior.
 *
 * Features:
 * - value: Get/set the option value (defaults to textContent if not set)
 * - selected: Get/set whether the option is selected
 * - disabled: Get/set whether the option is disabled
 */
export declare function OptionMixin<TBase extends Constructor>(SuperClass: TBase): TBase & OptionMixin;
export {};