import { KebabCase } from 'type-fest';
/**
 * Defines interface for components with open/close public emitter.
 * All implementations of this interface must handle the following events: `beforeOpen`, `open`, `beforeClose`, `close`.
 */
export interface OpenCloseComponent {
    /** The host element. */
    readonly el: HTMLElement;
    /**
     * Specifies property on which active transition is watched for.
     *
     * This should be used if the component uses a property other than `open` to trigger a transition.
     */
    openProp?: string;
    /** Specifies the name of CSS transition property. */
    transitionProp?: KebabCase<Extract<keyof CSSStyleDeclaration, string>>;
    /** Specifies element that the transition is allowed to emit on. */
    transitionEl: HTMLElement;
    /** Defines method for `beforeOpen` event handler. */
    onBeforeOpen: () => void;
    /** Defines method for `open` event handler: */
    onOpen: () => void;
    /** Defines method for `beforeClose` event handler: */
    onBeforeClose: () => void;
    /** Defines method for `close` event handler: */
    onClose: () => void;
}
/**
 * This util helps emit (before)open/close events consistently based on the associated CSS transition property.
 *
 * Note: this should be called whenever the component's toggling property changes and would trigger a transition.
 *
 * @example
 * import { onToggleOpenCloseComponent, OpenCloseComponent } from "../../utils/openCloseComponent";
 *
 * override willUpdate(changes: PropertyValues<this>): void {
 *   if (changes.has("open") && (this.hasUpdated || this.open !== false)) {
 *     onToggleOpenCloseComponent(this);
 *   }
 *   // ...
 * }
 * @param component - OpenCloseComponent uses `open` prop to emit (before)open/close.
 */
export declare function onToggleOpenCloseComponent(component: OpenCloseComponent): void;