forked from MapComplete/MapComplete
40 lines
1.1 KiB
TypeScript
40 lines
1.1 KiB
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 | null) => void }): UIEventSource<T> {
|
|
const src = new UIEventSource<T>(options?.defaultValue, "idb-local-storage:" + key)
|
|
if (Utils.runningFromConsole) {
|
|
return src;
|
|
}
|
|
src.addCallback(v => idb.set(key, v))
|
|
|
|
idb.get(key).then(v => {
|
|
src.setData(v ?? options?.defaultValue);
|
|
if (options?.whenLoaded !== undefined) {
|
|
options?.whenLoaded(v)
|
|
}
|
|
}).catch(err => {
|
|
console.warn("Loading from local storage failed due to", err)
|
|
if (options?.whenLoaded !== undefined) {
|
|
options?.whenLoaded(null)
|
|
}
|
|
})
|
|
return src;
|
|
|
|
}
|
|
|
|
public static SetDirectly(key: string, value) {
|
|
idb.set(key, value)
|
|
}
|
|
|
|
static GetDirectly(key: string) {
|
|
return idb.get(key)
|
|
}
|
|
}
|