mapcomplete/Logic/Web/IdbLocalStorage.ts
2022-01-26 21:40:38 +01:00

34 lines
934 B
TypeScript

import {UIEventSource} from "../UIEventSource";
import * as idb from "idb-keyval"
import {Utils} from "../../Utils";
/**
* UIEventsource-wrapper around indexedDB key-value
*/
export class IdbLocalStorage {
public static Get<T>(key: string, options?: { defaultValue?: T, whenLoaded?: (t: T) => void }): UIEventSource<T> {
const src = new UIEventSource<T>(options?.defaultValue, "idb-local-storage:" + key)
if (Utils.runningFromConsole) {
return src;
}
idb.get(key).then(v => {
src.setData(v ?? options?.defaultValue);
if (options?.whenLoaded !== undefined) {
options?.whenLoaded(v)
}
})
src.addCallback(v => idb.set(key, v))
return src;
}
public static SetDirectly(key: string, value) {
idb.set(key, value)
}
static GetDirectly(key: string) {
return idb.get(key)
}
}