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Small tweaks, stabilizing local source cache

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This commit is contained in:
Pieter Vander Vennet 2021-01-15 01:57:46 +01:00
parent f33fe081d0
commit fa4fb71e06
8 changed files with 53 additions and 37 deletions
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8
Logic/FeatureSource/LocalStorageSource.ts
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@ -1,21 +1,25 @@
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() {
constructor(layout: UIEventSource<LayoutConfig>) {
this.features = new UIEventSource<{ feature: any; freshness: Date }[]>([])
const key = LocalStorageSaver.storageKey + layout.data.id
try {
const fromStorage = localStorage.getItem(LocalStorageSaver.storageKey);
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)
}
}