deka-dom-el/test/index.js

import { el, elNS, assign, listen, dispatch } from "../index.js";
Object.assign(globalThis, { el, elNS, assign, listen, dispatch });

const { style, css }= createStyle();
globalThis.test= console.log;
const app= el(component, null, listen("change", globalThis.test));
dispatch("change", "Peter")(app);
console.log(app, app instanceof HTMLDivElement);

document.head.append(style);
document.body.append(app);

function component({ value= "World" }= {}){
	const name= "naiveForm";
	css`
		.${name}{
			display: flex;
			flex-flow: column nowrap;
		}
		.${name} input{
			margin-inline-start: .5em;
		}
	`;
	
	const output= eventsSink(store=> ({
		onchange: listen("change", function(event){
			assign(store.element, { textContent: event.target.value });
		})
	}));
	const input= eventsSink(store=> ({
		onchange: listen("change", function(event){
			assign(store.element, { value: event.detail });
			dispatch("change")(input.element);
		})
	}));
	return el("div", { className: name }, input.onchange).append(
		el("p").append(
			el("#text", { textContent: "Hello " }),
			el("strong", { textContent: value }, output.target),
		),
		el("label").append(
			el("#text", { textContent: "Set name:" }),
			el("input", { type: "text", value }, output.onchange, input.target)
		)
	)
}
function eventsSink(fn){
	const store= {
		element: null,
		target: function(element){ store.element= element; },
	};
	Object.assign(store, fn(store));
	return store;
}
function createStyle(){
	const style= el("style");
	return {
		style,
		css(...args){
			style.appendChild(el("#text", { textContent: String.raw(...args) }));
		}
	};
}