able-baker/iso-menu.tsx

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2023-06-27 21:54:39 -04:00
import React from "react";
type StateArgs = {done?:boolean, open?:boolean};
type StateObj = {done:boolean, open:boolean};
type StateBinding = [state:StateObj, update:(args:StateArgs)=>void];
const CTX = React.createContext([{done:true, open:false}, (args)=>{}] as StateBinding);
export const Group =(props:{children:React.JSX.Element|React.JSX.Element[]})=>
{
const [stateGet, stateSet] = React.useState({done:true, open:false} as StateObj);
return <CTX.Provider value={[stateGet, (args:StateArgs)=> stateSet({...stateGet, ...args})]}>{props.children}</CTX.Provider>;
};
export const Menu =(props:{children:React.JSX.Element|React.JSX.Element[]})=>
{
const [stateGet, stateSet] = React.useContext(CTX);
const refElement:React.MutableRefObject<HTMLElement|null> = React.useRef( null );
const refControl:React.MutableRefObject<CollapseControls|null> = React.useRef( null );
const refInitial:React.MutableRefObject<boolean> = React.useRef(true);
type MenuClassStates = {Keep:string, Open:string, Shut:string, Move:string, Exit:string};
const base = `relative transition-all border(8 black) overflow-hidden`;
const Classes:MenuClassStates =
{
Shut: `${base} h-0 top-0 w-1/2 duration-300`,
Open: `${base} h-auto top-8 w-full duration-700`,
lol: `${base} h-auto top-36 bg-yellow-500 w-2/3 duration-700`,
};
const Window = window as {TwindInst?:(c:string)=>string};
if(Window.TwindInst)
{
for(let stateName in Classes)
{
Classes[stateName as keyof MenuClassStates] = Window.TwindInst(Classes[stateName as keyof MenuClassStates]);
}
}
React.useEffect(()=>
{
refControl.current = refElement.current && Collapser(refElement.current, stateGet.open ? "Open" : "Shut", Classes);
}
, []);
React.useEffect(()=>
{
(!refInitial.current && refControl.current) && refControl.current(stateGet.open ? "Open" : "Shut", ()=>stateSet({done:true}));
refInitial.current = false;
}
, [stateGet.open]);
useAway(refElement, (e)=>stateSet({open:false, done:false}) );
return <div ref={refElement as React.Ref<HTMLDivElement>} class={Classes.Shut}>
{ (!stateGet.open && stateGet.done) ? null : props.children}
</div>;
};
export const Button =()=>
{
const [stateGet, stateSet] = React.useContext(CTX);
return <>
<p>{JSON.stringify(stateGet)}</p>
<button class="px-10 py-2 bg-red-500 text-white" onClick={e=>stateSet({open:true, done:false})}>Open</button>
<button class="px-10 py-2 bg-red-500 text-white" onClick={e=>stateSet({open:false, done:false})}>Close</button>
</>;
};
type Handler = (e:MouseEvent)=>void
const Refs:Map<HTMLElement, React.Ref<Handler>> = new Map();
function isHighest(inElement:HTMLElement, inSelection:HTMLElement[])
{
let currentNode = inElement;
while (currentNode != document.body)
{
currentNode = currentNode.parentNode as HTMLElement;
if(currentNode.hasAttribute("data-use-away") && inSelection.includes(currentNode))
{
return false;
}
}
return true;
}
window.innerWidth && document.addEventListener("click", e=>
{
const path = e.composedPath();
const away:HTMLElement[] = [];
Refs.forEach( (handlerRef, element)=>
{
if(!path.includes(element) && handlerRef.current)
{
away.push(element);
}
});
away.forEach((element)=>
{
if(isHighest(element, away))
{
const handler = Refs.get(element);
handler?.current && handler.current(e);
}
});
}
, true);
const useAway =(inRef:React.Ref<HTMLElement>, handleAway:Handler)=>
{
const refHandler:React.MutableRefObject<Handler> = React.useRef(handleAway);
refHandler.current = handleAway;
React.useEffect(()=>
{
if(inRef.current)
{
inRef.current.setAttribute("data-use-away", "0");
Refs.set(inRef.current, refHandler);
}
return ()=> inRef.current && Refs.delete(inRef.current);
}
, []);
};
type StyleSize = [classes:string, width:number, height:number];
type StylePack = Record<string, string>;
type StyleCalc = Record<string, StyleSize>;
const StyleCalc =(inElement:HTMLElement, inClasses:StylePack)=>
{
const initialStyle = inElement.getAttribute("style")||"";
const initialClass = inElement.getAttribute("class")||"";
const output = {} as StyleCalc;
inElement.setAttribute("style", `transition: none;`);
Object.entries(inClasses).forEach(([key, value])=>
{
inElement.setAttribute("class", value);
output[key] = [value, inElement.offsetWidth, inElement.offsetHeight];
});
inElement.setAttribute("class", initialClass);
inElement.offsetHeight; // this has be be exactly here
inElement.setAttribute("style", initialStyle);
return output;
};
type DoneCallback =(inState:string)=>void;
export type CollapseControls =(inOpen?:string, inDone?:DoneCallback)=>void;
export function Collapser(inElement:HTMLElement, initialState:string, library:Record<string, string>)
{
let userDone:DoneCallback = (openState) => {};
let userMode = initialState;
let frameRequest = 0;
let inTransition = false;
let measurements:StyleCalc;
const transitions:Set<string> = new Set();
const run = (inEvent:TransitionEvent)=> (inEvent.target == inElement) && transitions.add(inEvent.propertyName);
const end = (inEvent:TransitionEvent)=>
{
if (inEvent.target == inElement)
{
transitions.delete(inEvent.propertyName);
if(transitions.size === 0)
{
measurements = StyleCalc(inElement, library);
const [, w, h] = measurements[userMode];
if(inElement.offsetHeight != h || inElement.offsetWidth != w)
{
anim(userMode, userDone);
}
else
{
inElement.setAttribute("style", "");
inTransition = false;
userDone(userMode);
}
}
}
};
const anim = function(inState:string, inDone)
{
cancelAnimationFrame(frameRequest);
if(arguments.length)
{
if(!library[inState]){ return; }
userDone = inDone|| ((m)=>{}) as DoneCallback;
userMode = inState;
if(!inTransition)
{
measurements = StyleCalc(inElement, library);
}
if(measurements)
{
const [classes, width, height] = measurements[inState] as StyleSize;
const oldWidth = inElement.offsetWidth;
const oldHeight = inElement.offsetHeight;
inElement.style.width = oldWidth + "px";
inElement.style.height = oldHeight + "px";
inTransition = true;
frameRequest = requestAnimationFrame(()=>
{
inElement.style.height = height + "px";
inElement.style.width = width + "px";
inElement.className = classes;
});
}
}
else
{
inElement.removeEventListener("transitionrun", run);
inElement.removeEventListener("transitionend", end);
}
} as CollapseControls;
inElement.addEventListener("transitionend", end);
inElement.addEventListener("transitionrun", run);
return anim;
}