import { ElementRef } from '@angular/core';
import * as i0 from "@angular/core";
/**
 * Directive that detects clicks outside of an element and emits an event when they occur.
 *
 * This directive is useful for implementing dismissible UI components like dropdowns,
 * modals, and popups that should close when a user clicks outside of them.
 *
 * @example
 * ```html
 * <!-- Basic usage -->
 * <div stClickOutside (outsideClick)="closeDropdown()">
 *   Dropdown content
 * </div>
 *
 * <!-- With conditional behavior -->
 * <div stClickOutside (outsideClick)="isOpen ? closeDropdown() : null">
 *   Dropdown content that only closes when open
 * </div>
 * ```
 *
 * @usageNotes
 * The directive emits the `outsideClick` event when a click occurs outside
 * the element it's attached to. It does not automatically hide or modify
 * the element - you need to handle that in your component logic.
 *
 * Common use cases include:
 * - Closing dropdowns when clicking elsewhere on the page
 * - Dismissing modals when clicking outside the modal content
 * - Hiding tooltips or popovers when clicking outside
 *
 * @publicApi
 */
export declare class ClickOutsideDirective {
    private elementRef;
    /**
     * Event emitted when a click occurs outside the element.
     *
     * @example
     * ```html
     * <div stClickOutside (outsideClick)="handleOutsideClick()">...</div>
     * ```
     */
    outsideClick: import("@angular/core").OutputEmitterRef<void>;
    constructor(elementRef: ElementRef);
    /**
     * Listens for clicks on the document and determines if they occurred
     * outside the element this directive is attached to.
     *
     * @param event The mouse event from the document click
     */
    clickedOutside(event: MouseEvent): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<ClickOutsideDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<ClickOutsideDirective, "[stClickOutside]", never, {}, { "outsideClick": "outsideClick"; }, never, never, true, never>;
}