33 lines
1.2 KiB
TypeScript
33 lines
1.2 KiB
TypeScript
import 'rxjs/add/operator/map';
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import 'rxjs/add/operator/toPromise';
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import {ComponentResolver} from '@angular/core';
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import {Observable} from 'rxjs/Observable';
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import {forkJoin} from 'rxjs/observable/forkJoin';
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import {fromPromise} from 'rxjs/observable/fromPromise';
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import {ActivatedRouteSnapshot, RouterStateSnapshot} from './router_state';
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import {TreeNode} from './utils/tree';
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export function resolve(
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resolver: ComponentResolver, state: RouterStateSnapshot): Observable<RouterStateSnapshot> {
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return resolveNode(resolver, state._root).map(_ => state);
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}
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function resolveNode(
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resolver: ComponentResolver, node: TreeNode<ActivatedRouteSnapshot>): Observable<any> {
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if (node.children.length === 0) {
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return fromPromise(resolver.resolveComponent(<any>node.value.component).then(factory => {
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node.value._resolvedComponentFactory = factory;
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return node.value;
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}));
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} else {
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const c = node.children.map(c => resolveNode(resolver, c).toPromise());
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return forkJoin(c).map(
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_ => resolver.resolveComponent(<any>node.value.component).then(factory => {
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node.value._resolvedComponentFactory = factory;
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return node.value;
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}));
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}
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} |