62 lines
1.3 KiB
JavaScript
62 lines
1.3 KiB
JavaScript
//@ts-check
|
|
import * as Van from "./van.members.js";
|
|
|
|
const Gateway = {
|
|
Time: 0,
|
|
Temp:{},
|
|
Tick()
|
|
{
|
|
for(let k in Gateway.Temp)
|
|
{
|
|
localStorage.setItem(k, Gateway.Temp[k]);
|
|
}
|
|
Gateway.Temp = {};
|
|
Gateway.Time = 0;
|
|
},
|
|
Save(key, value)
|
|
{
|
|
Gateway.Temp[key] = value;
|
|
if(!Gateway.Time)
|
|
{
|
|
Gateway.Time = setTimeout(Gateway.Tick, 500);
|
|
}
|
|
},
|
|
Load(key)
|
|
{
|
|
return localStorage.getItem(key);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* HMR Wrapper for Van.state
|
|
* @template T
|
|
* @param {T} value - initial value
|
|
* @param {string} key - Storage ID
|
|
* @returns {Van.State<T>}
|
|
*/
|
|
export default function(value, key)
|
|
{
|
|
const type = typeof value;
|
|
let reader =(data)=>data;
|
|
let writer =(data)=> data.toString();
|
|
|
|
if(type === "object")
|
|
{
|
|
reader = JSON.parse;
|
|
writer = JSON.stringify;
|
|
}
|
|
else if(type === "number")
|
|
{
|
|
reader = parseFloat;
|
|
}
|
|
else if(type === "boolean")
|
|
{
|
|
reader =(data)=> data === "true";
|
|
}
|
|
|
|
const stringValue = Gateway.Load(key);
|
|
const signal = Van.state(/**@type{T}*/(stringValue ? reader(stringValue) : value));
|
|
Van.derive(()=>Gateway.Save(key, writer(signal.val)));
|
|
|
|
return signal;
|
|
} |