import { KitPlatformService } from '../kit-platform/kit-platform.service';
/**
 * Provides [Hammer.JS](https://hammerjs.github.io/) instance if available.
 *
 * Also you can manually inject HammerJS instance in the root module:
 *
 * ```typescript
 * import * as Hammer from 'hammerjs';
 * import { kitHammerInstance } from '@ngx-kit/core';
 * ...
 * @NgModule({
 *   ...
 *   providers: [
 *     {
 *       provide: kitHammerInstance,
 *       useValue: Hammer,
 *     },
 * ```
 *
 * But be aware, Hammer.JS does not support server-side rendering.
 *
 * That's why it is better just to add it via `angular.json` scripts section:
 *
 * ```json
 * ...
 * "scripts": [
 *   "node_modules/hammerjs/hammer.js",
 * ],
 * ```
 */
export declare class KitHammerProvider<T> {
    private platform;
    private _hammer;
    constructor(platform: KitPlatformService, hammerInstance: any);
    /**
     * Get Hammer.JS.
     * Returns null if not available.
     */
    readonly hammer: T | null;
    /**
     * Get event position relative to passed element, not the viewport.
     */
    calcRelatedPosition(el: HTMLElement, center: {
        x: number;
        y: number;
    }): {
        x: number;
        y: number;
    };
}