import { Renderer2, ElementRef, EventEmitter, OnChanges, OnDestroy, SimpleChanges } from "@angular/core";
import * as i0 from "@angular/core";
/**
 * Conditionally apply event listeners to an element
 *
 * Usage:
 * <button [ev-condition]="isActive()"
 *      ev-events="click"
 *      (ev-fire)="handleClick($event)">...</button>
 *
 * Notes:
 * The [ev-events] property can be either a string or an array of strings to handle multiple events
 */
export declare class ConditionEventDirective implements OnChanges, OnDestroy {
    private elm;
    private renderer;
    condition: boolean;
    events: string | string[];
    fire: EventEmitter<any>;
    private listeners;
    constructor(elm: ElementRef, renderer: Renderer2);
    ngOnChanges(changes: SimpleChanges): void;
    ngOnDestroy(): void;
    private unregisterAll;
    private addListener;
    static ɵfac: i0.ɵɵFactoryDeclaration<ConditionEventDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<ConditionEventDirective, "[ev-condition]", never, { "condition": "ev-condition"; "events": "ev-events"; }, { "fire": "ev-fire"; }, never>;
}