25 lines
717 B
TypeScript
25 lines
717 B
TypeScript
// #docregion
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import 'rxjs/add/observable/of';
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import { Injectable } from '@angular/core';
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import { PreloadingStrategy, Route } from '@angular/router';
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import { Observable } from 'rxjs/Observable';
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@Injectable()
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export class SelectivePreloadingStrategy implements PreloadingStrategy {
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preloadedModules: string[] = [];
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preload(route: Route, load: () => Observable<any>): Observable<any> {
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if (route.data && route.data['preload']) {
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// add the route path to our preloaded module array
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this.preloadedModules.push(route.path);
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// log the route path to the console
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console.log('Preloaded: ' + route.path);
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return load();
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} else {
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return Observable.of(null);
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}
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}
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}
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