import FeatureSource from "./FeatureSource"; import {UIEventSource} from "../UIEventSource"; import LocalStorageSaver from "./LocalStorageSaver"; import LayoutConfig from "../../Customizations/JSON/LayoutConfig"; export default class LocalStorageSource implements FeatureSource { public features: UIEventSource<{ feature: any; freshness: Date }[]>; constructor(layout: UIEventSource) { this.features = new UIEventSource<{ feature: any; freshness: Date }[]>([]) const key = LocalStorageSaver.storageKey + layout.data.id try { const fromStorage = localStorage.getItem(key); if (fromStorage == null) { return; } const loaded = JSON.parse(fromStorage); this.features.setData(loaded); console.log("Loaded ",loaded.length," features from localstorage as cache") } catch (e) { console.log("Could not load features from localStorage:", e) localStorage.removeItem(key) } } }