feat(Router): call resolver when upstream params change (#12942)
With this change the resolver is called when the parameter for the activated and any parent routes change. ie, switching from `/teams/10/players/5` to `/teams/12/players/5` will now trigger any `PlayerResolver`.
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@ -356,5 +356,9 @@ export function advanceActivatedRoute(route: ActivatedRoute): void {
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export function equalParamsAndUrlSegments(
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a: ActivatedRouteSnapshot, b: ActivatedRouteSnapshot): boolean {
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return shallowEqual(a.params, b.params) && equalSegments(a.url, b.url);
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}
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const equalUrlParams = shallowEqual(a.params, b.params) && equalSegments(a.url, b.url);
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const parentsMismatch = !a.parent !== !b.parent;
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return equalUrlParams && !parentsMismatch &&
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(!a.parent || equalParamsAndUrlSegments(a.parent, b.parent));
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}
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@ -100,9 +100,28 @@ describe('RouterState & Snapshot', () => {
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describe('equalParamsAndUrlSegments', () => {
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function createSnapshot(params: Params, url: UrlSegment[]): ActivatedRouteSnapshot {
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return new ActivatedRouteSnapshot(
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const snapshot = new ActivatedRouteSnapshot(
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url, params, <any>null, <any>null, <any>null, <any>null, <any>null, <any>null, <any>null,
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-1, null);
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snapshot._routerState = new RouterStateSnapshot('', new TreeNode(snapshot, []));
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return snapshot;
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}
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function createSnapshotPairWithParent(
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params: [Params, Params], parentParams: [Params, Params],
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urls: [string, string]): [ActivatedRouteSnapshot, ActivatedRouteSnapshot] {
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const snapshot1 = createSnapshot(params[0], []);
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const snapshot2 = createSnapshot(params[1], []);
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const snapshot1Parent = createSnapshot(parentParams[0], [new UrlSegment(urls[0], {})]);
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const snapshot2Parent = createSnapshot(parentParams[1], [new UrlSegment(urls[1], {})]);
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snapshot1._routerState =
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new RouterStateSnapshot('', new TreeNode(snapshot1Parent, [new TreeNode(snapshot1, [])]));
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snapshot2._routerState =
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new RouterStateSnapshot('', new TreeNode(snapshot2Parent, [new TreeNode(snapshot2, [])]));
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return [snapshot1, snapshot2];
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}
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it('should return false when params are different', () => {
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@ -123,6 +142,27 @@ describe('RouterState & Snapshot', () => {
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createSnapshot({a: 1}, [new UrlSegment('a', {})])))
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.toEqual(true);
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});
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it('should return false when upstream params are different', () => {
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const [snapshot1, snapshot2] =
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createSnapshotPairWithParent([{a: 1}, {a: 1}], [{b: 1}, {c: 1}], ['a', 'a']);
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expect(equalParamsAndUrlSegments(snapshot1, snapshot2)).toEqual(false);
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});
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it('should return false when upstream urls are different', () => {
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const [snapshot1, snapshot2] =
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createSnapshotPairWithParent([{a: 1}, {a: 1}], [{b: 1}, {b: 1}], ['a', 'b']);
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expect(equalParamsAndUrlSegments(snapshot1, snapshot2)).toEqual(false);
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});
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it('should return true when upstream urls and params are equal', () => {
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const [snapshot1, snapshot2] =
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createSnapshotPairWithParent([{a: 1}, {a: 1}], [{b: 1}, {b: 1}], ['a', 'a']);
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expect(equalParamsAndUrlSegments(snapshot1, snapshot2)).toEqual(true);
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});
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});
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describe('advanceActivatedRoute', () => {
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@ -135,9 +175,12 @@ describe('RouterState & Snapshot', () => {
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const queryParams = {};
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const fragment = '';
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const data = {};
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return new ActivatedRouteSnapshot(
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const snapshot = new ActivatedRouteSnapshot(
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url, params, queryParams, fragment, data, <any>null, <any>null, <any>null, <any>null, -1,
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null);
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const state = new RouterStateSnapshot('', new TreeNode(snapshot, []));
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snapshot._routerState = state;
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return snapshot;
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}
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it('should call change observers', () => {
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