50 lines
1.5 KiB
TypeScript
50 lines
1.5 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {ComponentRef} from '@angular/core';
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import {ActivatedRoute, ActivatedRouteSnapshot} from './router_state';
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import {TreeNode} from './utils/tree';
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/**
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* @whatItDoes Represents the detached route tree.
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*
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* This is an opaque value the router will give to a custom route reuse strategy
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* to store and retrieve later on.
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*
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* @experimental
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*/
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export type DetachedRouteHandle = {};
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/** @internal */
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export type DetachedRouteHandleInternal = {
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componentRef: ComponentRef<any>,
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route: TreeNode<ActivatedRoute>,
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};
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/**
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* @whatItDoes Provides a way to customize when activated routes get reused.
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*
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* @experimental
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*/
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export abstract class RouteReuseStrategy {
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/** Determines if this route (and its subtree) should be detached to be reused later */
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abstract shouldDetach(route: ActivatedRouteSnapshot): boolean;
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/** Stores the detached route */
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abstract store(route: ActivatedRouteSnapshot, handle: DetachedRouteHandle): void;
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/** Determines if this route (and its subtree) should be reattached */
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abstract shouldAttach(route: ActivatedRouteSnapshot): boolean;
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/** Retrieves the previously stored route */
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abstract retrieve(route: ActivatedRouteSnapshot): DetachedRouteHandle;
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/** Determines if a route should be reused */
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abstract shouldReuseRoute(future: ActivatedRouteSnapshot, curr: ActivatedRouteSnapshot): boolean;
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} |