132 lines
3.0 KiB
TypeScript
132 lines
3.0 KiB
TypeScript
import * as ReactParts from "react-original";
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const H = ReactParts.createElement;
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const HMR = {
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registered: new Map(),
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states: new Map(),
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statesOld: new Map(),
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reloads: 0,
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wireframe: false
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};
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HMR.onChange =(key, value)=>
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{
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HMR.registered.set(key, value);
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};
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HMR.update =()=>
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{
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HMR.reloads++;
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const keys = [];
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for(const [key, value] of HMR.registered){ keys.push(key); }
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HMR.registered.clear();
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HMR.statesOld = HMR.states;
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HMR.states = new Map();
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keys.forEach(k=>k());
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HMR.echoState();
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};
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HMR.echoState =()=>
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{
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let output = [];
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for(const[key, val] of HMR.statesOld)
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{
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output[key] = val.state+"--"+val.reload;
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}
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console.log(output);
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output = [];
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for(const[key, val] of HMR.states)
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{
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output[key] = val.state+"--"+val.reload;
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}
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console.log(output);
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};
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HMR.wipe =()=>
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{
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HMR.statesOld = new Map();
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};
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const MapAt =(inMap, inIndex)=>
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{
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let index = 0;
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for(const kvp of inMap)
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{
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if(index == inIndex)
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{
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return kvp;
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}
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index++;
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}
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return false;
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}
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window.HMR = HMR;
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const ProxyElement = (props)=>
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{
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const [stateGet, stateSet] = ReactParts.useState(0);
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ReactParts.useEffect(()=>HMR.onChange( ()=>stateSet(stateGet+1), "ProxyElement" ));
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const child = H(...props.__args);
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if(HMR.wireframe)
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{
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return H("div", {style:{padding:"10px", border:"2px solid red"}},
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H("p", null, stateGet),
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child
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);
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}
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else
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{
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return child;
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}
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};
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const ProxyCreate =(...args)=>
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{
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return typeof args[0] != "string" ? H(ProxyElement, {__args:args, ...args[1]}) : H(...args);
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};
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const ProxyState =(arg)=>
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{
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const id = ReactParts.useId();
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const trueArg = arg;
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// does statesOld have an entry for this state? use that instead of the passed arg
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const check = MapAt(HMR.statesOld, HMR.states.size);
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if(check)
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{
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arg = check[1].state;
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console.info(`BOOTING with ${arg}`);
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}
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const lastKnowReloads = HMR.reloads;
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const [stateGet, stateSet] = ReactParts.useState(arg);
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ReactParts.useEffect(()=>{
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return ()=>{
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if(HMR.reloads == lastKnowReloads)
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{
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// this is a switch/ui change, not a HMR reload change
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const oldState = MapAt(HMR.statesOld, HMR.states.size-1);
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HMR.statesOld.set(oldState[0], {...oldState[1], state:trueArg});
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}
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HMR.states.delete(id);
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}
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}, []);
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if(!HMR.states.has(id))
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{
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HMR.states.set(id, {state:arg, set:stateSet, reload:HMR.reloads});
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}
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function proxySetter (arg)
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{
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//console.log("state spy update", id, arg);
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HMR.states.set(id, {state:arg, set:stateSet, reload:HMR.reloads});
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return stateSet(arg);
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}
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return [stateGet, proxySetter];
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};
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export * from "react-original";
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export { ProxyCreate as createElement, ProxyState as useState };
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export default {...ReactParts.default, createElement:ProxyCreate, useState:ProxyState}; |