/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
import { LocationStrategy } from './location_strategy';
import { LocationChangeListener, PlatformLocation } from './platform_location';
/**
 * @description
 * A {@link LocationStrategy} used to configure the {@link Location} service to
 * represent its state in the
 * [path](https://en.wikipedia.org/wiki/Uniform_Resource_Locator#Syntax) of the
 * browser's URL.
 *
 * If you're using `PathLocationStrategy`, you must provide a {@link APP_BASE_HREF}
 * or add a base element to the document. This URL prefix that will be preserved
 * when generating and recognizing URLs.
 *
 * For instance, if you provide an `APP_BASE_HREF` of `'/my/app'` and call
 * `location.go('/foo')`, the browser's URL will become
 * `example.com/my/app/foo`.
 *
 * Similarly, if you add `<base href='/my/app'/>` to the document and call
 * `location.go('/foo')`, the browser's URL will become
 * `example.com/my/app/foo`.
 *
 * @usageNotes
 *
 * ### Example
 *
 * {@example common/location/ts/path_location_component.ts region='LocationComponent'}
 *
 *
 */
export declare class PathLocationStrategy extends LocationStrategy {
    private _platformLocation;
    private _baseHref;
    constructor(_platformLocation: PlatformLocation, href?: string);
    onPopState(fn: LocationChangeListener): void;
    getBaseHref(): string;
    prepareExternalUrl(internal: string): string;
    path(includeHash?: boolean): string;
    pushState(state: any, title: string, url: string, queryParams: string): void;
    replaceState(state: any, title: string, url: string, queryParams: string): void;
    forward(): void;
    back(): void;
}