import * as i0 from '@angular/core';

/**
 * @license
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://github.com/thekhegay/ngwr/blob/main/LICENSE
 */
/**
 * What to scroll to — an `Element`, an `id` string (looked up via
 * `getElementById`), an arbitrary CSS selector, or absolute coordinates.
 */
type WrScrollTarget = Element | string | {
    top: number;
    left?: number;
};
/** Options accepted by {@link WrScroll} scroll methods. */
interface WrScrollOptions {
    /** Pixel offset to subtract from the target — handy for sticky headers. @default 0 */
    readonly offset?: number;
    /** Smooth or instant scrolling. @default true (smooth) */
    readonly smooth?: boolean;
    /**
     * Scroll container. `window` (default) means the document; pass an
     * `Element` to scroll a nested overflow container instead.
     */
    readonly container?: Window | Element;
}

/**
 * Smooth-scroll utility. Resolves `id` / selector / element / coords
 * targets; subtracts an `offset` (for sticky headers); respects
 * `prefers-reduced-motion` — automatically falls back to instant
 * scrolling when the user has opted out.
 *
 * SSR-safe — all methods no-op on the server.
 *
 * @example
 * ```ts
 * const scroll = inject(WrScroll);
 * scroll.to('#section-three', { offset: 80 });
 * scroll.toTop({ smooth: false });
 * scroll.intoView(myEl, { offset: 64 });
 * ```
 *
 * @see https://ngwr.dev/services/scroll
 */
declare class WrScroll {
    private readonly doc;
    private readonly platform;
    /** Scroll to an arbitrary target. */
    to(target: WrScrollTarget, options?: WrScrollOptions): void;
    /** Convenience for an element — accepts the same options. */
    intoView(el: Element, options?: WrScrollOptions): void;
    /** Scroll the page (or container) to the top. */
    toTop(options?: WrScrollOptions): void;
    private resolveSelector;
    private behavior;
    private scroll;
    static ɵfac: i0.ɵɵFactoryDeclaration<WrScroll, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<WrScroll>;
}

export { WrScroll };
export type { WrScrollOptions, WrScrollTarget };