58 lines
1.7 KiB
TypeScript
58 lines
1.7 KiB
TypeScript
import React from "react";
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import { CollapseControls, Collapser } from "./components/collapse.tsx";
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type StateArgs = {done?:boolean, open?:boolean};
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type StateObj = {done:boolean, open:boolean};
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type StateBinding = [state:StateObj, update:(args:StateArgs)=>void];
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const CTX = React.createContext([{done:true, open:false}, (args)=>{}] as StateBinding);
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export default ()=>
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{
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const [stateGet, stateSet] = React.useState({done:true, open:false} as StateObj);
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const setter =(args:StateArgs)=> stateSet({...stateGet, ...args});
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return <CTX.Provider value={[stateGet, setter]}>
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<Inner/>
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</CTX.Provider>;
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}
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const Inner =()=>
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{
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const [stateGet, stateSet] = React.useContext(CTX);
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const refElement = React.useRef( null );
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const refControl:React.MutableRefObject<CollapseControls|null> = React.useRef( null );
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React.useEffect(()=>
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{
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refControl.current = Collapser(refElement.current, true);
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}
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, []);
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React.useEffect(()=>
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{
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console.log("open changed to:", stateGet.open);
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refControl.current && refControl.current(stateGet.open, 1000, ()=>stateSet({done:true}));
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}, [stateGet.open])
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React.useEffect(()=>{
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console.log("done changed to:", stateGet.done);
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}, [stateGet.done])
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return <div class="p-4">
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<p>{JSON.stringify(stateGet)}</p>
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<button class="px-10 py-2 bg-red-500 text-white" onClick={e=>stateSet({open:!stateGet.open, done:false})}>click</button>
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<div ref={refElement}>
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<p>hello</p>
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<p>hello</p>
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<p>hello</p>
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<p>hello</p>
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<p>hello</p>
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<p>hello</p>
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<p>hello</p>
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</div>
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</div>;
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};
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