⚡ 🔤 UI enhancements

README.md

@@ -18,19 +18,19 @@ function HelloWorldComponent({ initial }){
 	/** @param {HTMLOptionElement} el */
 	const isSelected= el=> (el.selected= el.value===initial);
 	// @ts-expect-error 2339: The <select> has only two options with {@link Emoji}
-	const onChange= on("change", event=> emoji(event.target.value));
+	const onChange= on("change", event=> emoji.set(event.target.value));
 
 	return el().append(
 		el("p", {
-			textContent: S(() => `Hello World ${emoji().repeat(clicks())}`),
+			textContent: S(() => `Hello World ${emoji.get().repeat(clicks.get())}`),
 			className: "example",
 			ariaLive: "polite", //OR ariaset: { live: "polite" },
 			dataset: { example: "Example" }, //OR dataExample: "Example",
 		}),
 		el("button",
 			{ textContent: "Fire", type: "button" },
-			on("click", ()=> clicks(clicks() + 1)),
-			on("keyup", ()=> clicks(clicks() - 2)),
+			on("click", ()=> clicks.set(clicks.get() + 1)),
+			on("keyup", ()=> clicks.set(clicks.get() - 2)),
 		),
 		el("select", null, onChange).append(
 			el(OptionComponent, "🎉", isSelected),//OR { textContent: "🎉" }
@@ -86,10 +86,7 @@ To balance these requirements, numerous compromises have been made. To summarize
 	- [dist/](dist/) (`https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/`…)
 
 ## Signals
-- [Signals — whats going on behind the scenes | by Ryan Hoffnan | ITNEXT](https://itnext.io/
-signals-whats-going-on-behind-the-scenes-ec858589ea63)
-- [The Evolution of Signals in JavaScript - DEV Community](https://dev.to/this-is-learning/the-evolution-of-signals-in-
-javascript-8ob)
-- there is also [tc39/proposal-signals: A proposal to add signals to JavaScript.](https://github.com/tc39/proposal-
-signals)
+- [Signals — whats going on behind the scenes \| by Ryan Hoffnan \| ITNEXT](https://itnext.io/signals-whats-going-on-behind-the-scenes-ec858589ea63)
+- [The Evolution of Signals in JavaScript - DEV Community](https://dev.to/this-is-learning/the-evolution-of-signals-in-javascript-8ob)
+- there is also [tc39/proposal-signals: A proposal to add signals to JavaScript.](https://github.com/tc39/proposal-signals)
 - [Observer pattern - Wikipedia](https://en.wikipedia.org/wiki/Observer_pattern)

dist/dde.js

@@ -1,456 +1,664 @@
 //deka-dom-el library is available via global namespace `dde`
 (()=> {
-// src/signals-common.js
-var C = {
-	isSignal(t) {
-		return !1;
-	},
-	processReactiveAttribute(t, e, r, n) {
-		return r;
-	}
-};
-function Z(t, e = !0) {
-	return e ? Object.assign(C, t) : (Object.setPrototypeOf(t, C), t);
-}
-function S(t) {
-	return C.isPrototypeOf(t) && t !== C ? t : C;
-}
-
 // src/helpers.js
-function m(t) {
-	return typeof t > "u";
+function isUndef(value) {
+	return typeof value === "undefined";
 }
-function L(t, e) {
-	if (!t || !(t instanceof AbortSignal))
-		return !0;
-	if (!t.aborted)
-		return t.addEventListener("abort", e), function() {
-			t.removeEventListener("abort", e);
-		};
+function isInstance(obj, cls) {
+	return obj instanceof cls;
 }
-function q(t, e) {
-	let { observedAttributes: r = [] } = t.constructor;
-	return r.reduce(function(n, o) {
-		return n[G(o)] = e(t, o), n;
+function isProtoFrom(obj, cls) {
+	return Object.prototype.isPrototypeOf.call(cls, obj);
+}
+function oAssign(...o) {
+	return Object.assign(...o);
+}
+function onAbort(signal, listener) {
+	if (!signal || !isInstance(signal, AbortSignal))
+		return true;
+	if (signal.aborted)
+		return;
+	signal.addEventListener("abort", listener);
+	return function cleanUp() {
+		signal.removeEventListener("abort", listener);
+	};
+}
+function observedAttributes(instance, observedAttribute) {
+	const { observedAttributes: observedAttributes3 = [] } = instance.constructor;
+	return observedAttributes3.reduce(function(out, name) {
+		out[kebabToCamel(name)] = observedAttribute(instance, name);
+		return out;
 	}, {});
 }
-function G(t) {
-	return t.replace(/-./g, (e) => e[1].toUpperCase());
+function kebabToCamel(name) {
+	return name.replace(/-./g, (x) => x[1].toUpperCase());
+}
+
+// src/signals-lib/common.js
+var signals_global = {
+	/**
+	* Checks if a value is a signal
+	* @param {any} attributes - Value to check
+	* @returns {boolean} Whether the value is a signal
+	*/
+	isSignal(attributes) {
+		return false;
+	},
+	/**
+	* Processes an attribute that might be reactive
+	* @param {Element} obj - Element that owns the attribute
+	* @param {string} key - Attribute name
+	* @param {any} attr - Attribute value
+	* @param {Function} set - Function to set the attribute
+	* @returns {any} Processed attribute value
+	*/
+	processReactiveAttribute(obj, key, attr, set) {
+		return attr;
+	}
+};
+function registerReactivity(def, global = true) {
+	if (global) return oAssign(signals_global, def);
+	Object.setPrototypeOf(def, signals_global);
+	return def;
+}
+function signals(_this) {
+	return isProtoFrom(_this, signals_global) && _this !== signals_global ? _this : signals_global;
 }
 
 // src/dom-common.js
-var a = {
-	setDeleteAttr: V,
+var enviroment = {
+	setDeleteAttr,
 	ssr: "",
 	D: globalThis.document,
 	F: globalThis.DocumentFragment,
 	H: globalThis.HTMLElement,
 	S: globalThis.SVGElement,
 	M: globalThis.MutationObserver,
-	q: (t) => t || Promise.resolve()
+	q: (p) => p || Promise.resolve()
 };
-function V(t, e, r) {
-	if (Reflect.set(t, e, r), !!m(r)) {
-		if (Reflect.deleteProperty(t, e), t instanceof a.H && t.getAttribute(e) === "undefined")
-			return t.removeAttribute(e);
-		if (Reflect.get(t, e) === "undefined")
-			return Reflect.set(t, e, "");
-	}
+function setDeleteAttr(obj, prop, val) {
+	Reflect.set(obj, prop, val);
+	if (!isUndef(val)) return;
+	Reflect.deleteProperty(obj, prop);
+	if (isInstance(obj, enviroment.H) && obj.getAttribute(prop) === "undefined")
+		return obj.removeAttribute(prop);
+	if (Reflect.get(obj, prop) === "undefined")
+		return Reflect.set(obj, prop, "");
 }
-var x = "__dde_lifecyclesToEvents", v = "dde:connected", w = "dde:disconnected", y = "dde:attributeChanged";
+var keyLTE = "__dde_lifecyclesToEvents";
+var evc = "dde:connected";
+var evd = "dde:disconnected";
+var eva = "dde:attributeChanged";
 
 // src/dom.js
-function dt(t) {
-	return a.q(t);
+function queue(promise) {
+	return enviroment.q(promise);
 }
-var g = [{
+var scopes = [{
 	get scope() {
-		return a.D.body;
+		return enviroment.D.body;
 	},
-	host: (t) => t ? t(a.D.body) : a.D.body,
-	prevent: !0
-}], O = {
+	host: (c) => c ? c(enviroment.D.body) : enviroment.D.body,
+	prevent: true
+}];
+var scope = {
+	/**
+	* Gets the current scope
+	* @returns {Object} Current scope context
+	*/
 	get current() {
-		return g[g.length - 1];
+		return scopes[scopes.length - 1];
 	},
+	/**
+	* Gets the host element of the current scope
+	* @returns {Function} Host accessor function
+	*/
 	get host() {
 		return this.current.host;
 	},
+	/**
+	* Prevents default behavior in the current scope
+	* @returns {Object} Current scope context
+	*/
 	preventDefault() {
-		let { current: t } = this;
-		return t.prevent = !0, t;
+		const { current } = this;
+		current.prevent = true;
+		return current;
 	},
+	/**
+	* Gets a copy of the current scope stack
+	* @returns {Array} Copy of scope stack
+	*/
 	get state() {
-		return [...g];
+		return [...scopes];
 	},
-	push(t = {}) {
-		return g.push(Object.assign({}, this.current, { prevent: !1 }, t));
+	/**
+	* Pushes a new scope to the stack
+	* @param {Object} [s={}] - Scope object to push
+	* @returns {number} New length of the scope stack
+	*/
+	push(s = {}) {
+		return scopes.push(oAssign({}, this.current, { prevent: false }, s));
 	},
+	/**
+	* Pushes the root scope to the stack
+	* @returns {number} New length of the scope stack
+	*/
 	pushRoot() {
-		return g.push(g[0]);
+		return scopes.push(scopes[0]);
 	},
+	/**
+	* Pops the current scope from the stack
+	* @returns {Object|undefined} Popped scope or undefined if only one scope remains
+	*/
 	pop() {
-		if (g.length !== 1)
-			return g.pop();
+		if (scopes.length === 1) return;
+		return scopes.pop();
 	}
 };
-function k(...t) {
-	return this.appendOriginal(...t), this;
+function append(...els) {
+	this.appendOriginal(...els);
+	return this;
 }
-function J(t) {
-	return t.append === k || (t.appendOriginal = t.append, t.append = k), t;
+function chainableAppend(el) {
+	if (el.append === append) return el;
+	el.appendOriginal = el.append;
+	el.append = append;
+	return el;
 }
-var T;
-function P(t, e, ...r) {
-	let n = S(this), o = 0, c, d;
-	switch ((Object(e) !== e || n.isSignal(e)) && (e = { textContent: e }), !0) {
-		case typeof t == "function": {
-			o = 1;
-			let f = (...l) => l.length ? (o === 1 ? r.unshift(...l) : l.forEach((E) => E(d)), void 0) : d;
-			O.push({ scope: t, host: f }), c = t(e || void 0);
-			let p = c instanceof a.F;
-			if (c.nodeName === "#comment") break;
-			let b = P.mark({
+var namespace;
+function createElement(tag, attributes, ...addons) {
+	const s = signals(this);
+	let scoped = 0;
+	let el, el_host;
+	if (Object(attributes) !== attributes || s.isSignal(attributes))
+		attributes = { textContent: attributes };
+	switch (true) {
+		case typeof tag === "function": {
+			scoped = 1;
+			const host = (...c) => !c.length ? el_host : (scoped === 1 ? addons.unshift(...c) : c.forEach((c2) => c2(el_host)), void 0);
+			scope.push({ scope: tag, host });
+			el = tag(attributes || void 0);
+			const is_fragment = isInstance(el, enviroment.F);
+			if (el.nodeName === "#comment") break;
+			const el_mark = createElement.mark({
 				type: "component",
-				name: t.name,
-				host: p ? "this" : "parentElement"
+				name: tag.name,
+				host: is_fragment ? "this" : "parentElement"
 			});
-			c.prepend(b), p && (d = b);
+			el.prepend(el_mark);
+			if (is_fragment) el_host = el_mark;
 			break;
 		}
-		case t === "#text":
-			c = R.call(this, a.D.createTextNode(""), e);
+		case tag === "#text":
+			el = assign.call(this, enviroment.D.createTextNode(""), attributes);
 			break;
-		case (t === "<>" || !t):
-			c = R.call(this, a.D.createDocumentFragment(), e);
+		case (tag === "<>" || !tag):
+			el = assign.call(this, enviroment.D.createDocumentFragment(), attributes);
 			break;
-		case !!T:
-			c = R.call(this, a.D.createElementNS(T, t), e);
+		case Boolean(namespace):
+			el = assign.call(this, enviroment.D.createElementNS(namespace, tag), attributes);
 			break;
-		case !c:
-			c = R.call(this, a.D.createElement(t), e);
+		case !el:
+			el = assign.call(this, enviroment.D.createElement(tag), attributes);
 	}
-	return J(c), d || (d = c), r.forEach((f) => f(d)), o && O.pop(), o = 2, c;
+	chainableAppend(el);
+	if (!el_host) el_host = el;
+	addons.forEach((c) => c(el_host));
+	if (scoped) scope.pop();
+	scoped = 2;
+	return el;
 }
-P.mark = function(t, e = !1) {
-	t = Object.entries(t).map(([o, c]) => o + `="${c}"`).join(" ");
-	let r = e ? "" : "/", n = a.D.createComment(`<dde:mark ${t}${a.ssr}${r}>`);
-	return e && (n.end = a.D.createComment("</dde:mark>")), n;
+createElement.mark = function(attrs, is_open = false) {
+	attrs = Object.entries(attrs).map(([n, v]) => n + `="${v}"`).join(" ");
+	const end = is_open ? "" : "/";
+	const out = enviroment.D.createComment(`<dde:mark ${attrs}${enviroment.ssr}${end}>`);
+	if (is_open) out.end = enviroment.D.createComment("</dde:mark>");
+	return out;
 };
-function pt(t) {
-	let e = this;
-	return function(...n) {
-		T = t;
-		let o = P.call(e, ...n);
-		return T = void 0, o;
+function createElementNS(ns) {
+	const _this = this;
+	return function createElementNSCurried(...rest) {
+		namespace = ns;
+		const el = createElement.call(_this, ...rest);
+		namespace = void 0;
+		return el;
 	};
 }
-function lt(t, e = t) {
-	let r = "\xB9\u2070", n = "\u2713", o = Object.fromEntries(
-		Array.from(e.querySelectorAll("slot")).filter((c) => !c.name.endsWith(r)).map((c) => [c.name += r, c])
+function simulateSlots(element, root = element) {
+	const mark_e = "\xB9\u2070", mark_s = "\u2713";
+	const slots = Object.fromEntries(
+		Array.from(root.querySelectorAll("slot")).filter((s) => !s.name.endsWith(mark_e)).map((s) => [s.name += mark_e, s])
 	);
-	if (t.append = new Proxy(t.append, {
-		apply(c, d, f) {
-			if (f[0] === e) return c.apply(t, f);
-			for (let p of f) {
-				let b = (p.slot || "") + r;
+	element.append = new Proxy(element.append, {
+		apply(orig, _, els) {
+			if (els[0] === root) return orig.apply(element, els);
+			for (const el of els) {
+				const name = (el.slot || "") + mark_e;
 				try {
-					Q(p, "remove", "slot");
-				} catch {
+					elementAttribute(el, "remove", "slot");
+				} catch (_error) {
 				}
-				let l = o[b];
-				if (!l) return;
-				l.name.startsWith(n) || (l.childNodes.forEach((E) => E.remove()), l.name = n + b), l.append(p);
+				const slot = slots[name];
+				if (!slot) return;
+				if (!slot.name.startsWith(mark_s)) {
+					slot.childNodes.forEach((c) => c.remove());
+					slot.name = mark_s + name;
+				}
+				slot.append(el);
 			}
-			return t.append = c, t;
+			element.append = orig;
+			return element;
 		}
-	}), t !== e) {
-		let c = Array.from(t.childNodes);
-		t.append(...c);
+	});
+	if (element !== root) {
+		const els = Array.from(element.childNodes);
+		element.append(...els);
 	}
-	return e;
+	return root;
 }
-var N = /* @__PURE__ */ new WeakMap(), { setDeleteAttr: $ } = a;
-function R(t, ...e) {
-	if (!e.length) return t;
-	N.set(t, H(t, this));
-	for (let [r, n] of Object.entries(Object.assign({}, ...e)))
-		U.call(this, t, r, n);
-	return N.delete(t), t;
+var assign_context = /* @__PURE__ */ new WeakMap();
+var { setDeleteAttr: setDeleteAttr2 } = enviroment;
+function assign(element, ...attributes) {
+	if (!attributes.length) return element;
+	assign_context.set(element, assignContext(element, this));
+	for (const [key, value] of Object.entries(oAssign({}, ...attributes)))
+		assignAttribute.call(this, element, key, value);
+	assign_context.delete(element);
+	return element;
 }
-function U(t, e, r) {
-	let { setRemoveAttr: n, s: o } = H(t, this), c = this;
-	r = o.processReactiveAttribute(
-		t,
-		e,
-		r,
-		(f, p) => U.call(c, t, f, p)
+function assignAttribute(element, key, value) {
+	const { setRemoveAttr, s } = assignContext(element, this);
+	const _this = this;
+	value = s.processReactiveAttribute(
+		element,
+		key,
+		value,
+		(key2, value2) => assignAttribute.call(_this, element, key2, value2)
 	);
-	let [d] = e;
-	if (d === "=") return n(e.slice(1), r);
-	if (d === ".") return F(t, e.slice(1), r);
-	if (/(aria|data)([A-Z])/.test(e))
-		return e = e.replace(/([a-z])([A-Z])/g, "$1-$2").toLowerCase(), n(e, r);
-	switch (e === "className" && (e = "class"), e) {
+	const [k] = key;
+	if ("=" === k) return setRemoveAttr(key.slice(1), value);
+	if ("." === k) return setDelete(element, key.slice(1), value);
+	if (/(aria|data)([A-Z])/.test(key)) {
+		key = key.replace(/([a-z])([A-Z])/g, "$1-$2").toLowerCase();
+		return setRemoveAttr(key, value);
+	}
+	if ("className" === key) key = "class";
+	switch (key) {
 		case "xlink:href":
-			return n(e, r, "http://www.w3.org/1999/xlink");
+			return setRemoveAttr(key, value, "http://www.w3.org/1999/xlink");
 		case "textContent":
-			return $(t, e, r);
+			return setDeleteAttr2(element, key, value);
 		case "style":
-			if (typeof r != "object") break;
+			if (typeof value !== "object") break;
 		/* falls through */
 		case "dataset":
-			return M(o, e, t, r, F.bind(null, t[e]));
+			return forEachEntries(s, key, element, value, setDelete.bind(null, element[key]));
 		case "ariaset":
-			return M(o, e, t, r, (f, p) => n("aria-" + f, p));
+			return forEachEntries(s, key, element, value, (key2, val) => setRemoveAttr("aria-" + key2, val));
 		case "classList":
-			return K.call(c, t, r);
+			return classListDeclarative.call(_this, element, value);
 	}
-	return X(t, e) ? $(t, e, r) : n(e, r);
+	return isPropSetter(element, key) ? setDeleteAttr2(element, key, value) : setRemoveAttr(key, value);
 }
-function H(t, e) {
-	if (N.has(t)) return N.get(t);
-	let n = (t instanceof a.S ? tt : Y).bind(null, t, "Attribute"), o = S(e);
-	return { setRemoveAttr: n, s: o };
+function assignContext(element, _this) {
+	if (assign_context.has(element)) return assign_context.get(element);
+	const is_svg = isInstance(element, enviroment.S);
+	const setRemoveAttr = (is_svg ? setRemoveNS : setRemove).bind(null, element, "Attribute");
+	const s = signals(_this);
+	return { setRemoveAttr, s };
 }
-function K(t, e) {
-	let r = S(this);
-	return M(
-		r,
+function classListDeclarative(element, toggle) {
+	const s = signals(this);
+	forEachEntries(
+		s,
 		"classList",
-		t,
-		e,
-		(n, o) => t.classList.toggle(n, o === -1 ? void 0 : !!o)
-	), t;
+		element,
+		toggle,
+		(class_name, val) => element.classList.toggle(class_name, val === -1 ? void 0 : Boolean(val))
+	);
+	return element;
 }
-function Q(t, e, r, n) {
-	return t instanceof a.H ? t[e + "Attribute"](r, n) : t[e + "AttributeNS"](null, r, n);
+function elementAttribute(element, op, key, value) {
+	if (isInstance(element, enviroment.H))
+		return element[op + "Attribute"](key, value);
+	return element[op + "AttributeNS"](null, key, value);
 }
-function X(t, e) {
-	if (!(e in t)) return !1;
-	let r = z(t, e);
-	return !m(r.set);
+function isPropSetter(el, key) {
+	if (!(key in el)) return false;
+	const des = getPropDescriptor(el, key);
+	return !isUndef(des.set);
 }
-function z(t, e) {
-	if (t = Object.getPrototypeOf(t), !t) return {};
-	let r = Object.getOwnPropertyDescriptor(t, e);
-	return r || z(t, e);
+function getPropDescriptor(p, key) {
+	p = Object.getPrototypeOf(p);
+	if (!p) return {};
+	const des = Object.getOwnPropertyDescriptor(p, key);
+	if (!des) return getPropDescriptor(p, key);
+	return des;
 }
-function M(t, e, r, n, o) {
-	let c = String;
-	if (!(typeof n != "object" || n === null))
-		return Object.entries(n).forEach(function([f, p]) {
-			f && (f = new c(f), f.target = e, p = t.processReactiveAttribute(r, f, p, o), o(f, p));
-		});
+function forEachEntries(s, target, element, obj, cb) {
+	const S = String;
+	if (typeof obj !== "object" || obj === null) return;
+	return Object.entries(obj).forEach(function process([key, val]) {
+		if (!key) return;
+		key = new S(key);
+		key.target = target;
+		val = s.processReactiveAttribute(element, key, val, cb);
+		cb(key, val);
+	});
 }
-function Y(t, e, r, n) {
-	return t[(m(n) ? "remove" : "set") + e](r, n);
+function setRemove(obj, prop, key, val) {
+	return obj[(isUndef(val) ? "remove" : "set") + prop](key, val);
 }
-function tt(t, e, r, n, o = null) {
-	return t[(m(n) ? "remove" : "set") + e + "NS"](o, r, n);
+function setRemoveNS(obj, prop, key, val, ns = null) {
+	return obj[(isUndef(val) ? "remove" : "set") + prop + "NS"](ns, key, val);
 }
-function F(t, e, r) {
-	if (Reflect.set(t, e, r), !!m(r))
-		return Reflect.deleteProperty(t, e);
+function setDelete(obj, key, val) {
+	Reflect.set(obj, key, val);
+	if (!isUndef(val)) return;
+	return Reflect.deleteProperty(obj, key);
 }
 
 // src/events-observer.js
-var _ = a.M ? et() : new Proxy({}, {
+var c_ch_o = enviroment.M ? connectionsChangesObserverConstructor() : new Proxy({}, {
 	get() {
 		return () => {
 		};
 	}
 });
-function et() {
-	let t = /* @__PURE__ */ new Map(), e = !1, r = (s) => function(u) {
-		for (let i of u)
-			if (i.type === "childList") {
-				if (l(i.addedNodes, !0)) {
-					s();
-					continue;
-				}
-				E(i.removedNodes, !0) && s();
+function connectionsChangesObserverConstructor() {
+	const store = /* @__PURE__ */ new Map();
+	let is_observing = false;
+	const observerListener = (stop2) => function(mutations) {
+		for (const mutation of mutations) {
+			if (mutation.type !== "childList") continue;
+			if (observerAdded(mutation.addedNodes, true)) {
+				stop2();
+				continue;
 			}
-	}, n = new a.M(r(f));
-	return {
-		observe(s) {
-			let u = new a.M(r(() => {
-			}));
-			return u.observe(s, { childList: !0, subtree: !0 }), () => u.disconnect();
-		},
-		onConnected(s, u) {
-			d();
-			let i = c(s);
-			i.connected.has(u) || (i.connected.add(u), i.length_c += 1);
-		},
-		offConnected(s, u) {
-			if (!t.has(s)) return;
-			let i = t.get(s);
-			i.connected.has(u) && (i.connected.delete(u), i.length_c -= 1, o(s, i));
-		},
-		onDisconnected(s, u) {
-			d();
-			let i = c(s);
-			i.disconnected.has(u) || (i.disconnected.add(u), i.length_d += 1);
-		},
-		offDisconnected(s, u) {
-			if (!t.has(s)) return;
-			let i = t.get(s);
-			i.disconnected.has(u) && (i.disconnected.delete(u), i.length_d -= 1, o(s, i));
+			if (observerRemoved(mutation.removedNodes, true))
+				stop2();
 		}
 	};
-	function o(s, u) {
-		u.length_c || u.length_d || (t.delete(s), f());
+	const observer = new enviroment.M(observerListener(stop));
+	return {
+		/**
+		* Creates an observer for a specific element
+		* @param {Element} element - Element to observe
+		* @returns {Function} Cleanup function
+		*/
+		observe(element) {
+			const o = new enviroment.M(observerListener(() => {
+			}));
+			o.observe(element, { childList: true, subtree: true });
+			return () => o.disconnect();
+		},
+		/**
+		* Register a connection listener for an element
+		* @param {Element} element - Element to watch
+		* @param {Function} listener - Callback for connection event
+		*/
+		onConnected(element, listener) {
+			start();
+			const listeners = getElementStore(element);
+			if (listeners.connected.has(listener)) return;
+			listeners.connected.add(listener);
+			listeners.length_c += 1;
+		},
+		/**
+		* Unregister a connection listener
+		* @param {Element} element - Element being watched
+		* @param {Function} listener - Callback to remove
+		*/
+		offConnected(element, listener) {
+			if (!store.has(element)) return;
+			const ls = store.get(element);
+			if (!ls.connected.has(listener)) return;
+			ls.connected.delete(listener);
+			ls.length_c -= 1;
+			cleanWhenOff(element, ls);
+		},
+		/**
+		* Register a disconnection listener for an element
+		* @param {Element} element - Element to watch
+		* @param {Function} listener - Callback for disconnection event
+		*/
+		onDisconnected(element, listener) {
+			start();
+			const listeners = getElementStore(element);
+			if (listeners.disconnected.has(listener)) return;
+			listeners.disconnected.add(listener);
+			listeners.length_d += 1;
+		},
+		/**
+		* Unregister a disconnection listener
+		* @param {Element} element - Element being watched
+		* @param {Function} listener - Callback to remove
+		*/
+		offDisconnected(element, listener) {
+			if (!store.has(element)) return;
+			const ls = store.get(element);
+			if (!ls.disconnected.has(listener)) return;
+			ls.disconnected.delete(listener);
+			ls.length_d -= 1;
+			cleanWhenOff(element, ls);
+		}
+	};
+	function cleanWhenOff(element, ls) {
+		if (ls.length_c || ls.length_d)
+			return;
+		store.delete(element);
+		stop();
 	}
-	function c(s) {
-		if (t.has(s)) return t.get(s);
-		let u = {
+	function getElementStore(element) {
+		if (store.has(element)) return store.get(element);
+		const out = {
 			connected: /* @__PURE__ */ new WeakSet(),
 			length_c: 0,
 			disconnected: /* @__PURE__ */ new WeakSet(),
 			length_d: 0
 		};
-		return t.set(s, u), u;
+		store.set(element, out);
+		return out;
 	}
-	function d() {
-		e || (e = !0, n.observe(a.D.body, { childList: !0, subtree: !0 }));
+	function start() {
+		if (is_observing) return;
+		is_observing = true;
+		observer.observe(enviroment.D.body, { childList: true, subtree: true });
 	}
-	function f() {
-		!e || t.size || (e = !1, n.disconnect());
+	function stop() {
+		if (!is_observing || store.size) return;
+		is_observing = false;
+		observer.disconnect();
 	}
-	function p() {
-		return new Promise(function(s) {
-			(requestIdleCallback || requestAnimationFrame)(s);
+	function requestIdle() {
+		return new Promise(function(resolve) {
+			(requestIdleCallback || requestAnimationFrame)(resolve);
 		});
 	}
-	async function b(s) {
-		t.size > 30 && await p();
-		let u = [];
-		if (!(s instanceof Node)) return u;
-		for (let i of t.keys())
-			i === s || !(i instanceof Node) || s.contains(i) && u.push(i);
-		return u;
-	}
-	function l(s, u) {
-		let i = !1;
-		for (let h of s) {
-			if (u && b(h).then(l), !t.has(h)) continue;
-			let A = t.get(h);
-			A.length_c && (h.dispatchEvent(new Event(v)), A.connected = /* @__PURE__ */ new WeakSet(), A.length_c = 0, A.length_d || t.delete(h), i = !0);
+	async function collectChildren(element) {
+		if (store.size > 30)
+			await requestIdle();
+		const out = [];
+		if (!isInstance(element, Node)) return out;
+		for (const el of store.keys()) {
+			if (el === element || !isInstance(el, Node)) continue;
+			if (element.contains(el))
+				out.push(el);
 		}
-		return i;
+		return out;
 	}
-	function E(s, u) {
-		let i = !1;
-		for (let h of s)
-			u && b(h).then(E), !(!t.has(h) || !t.get(h).length_d) && ((globalThis.queueMicrotask || setTimeout)(I(h)), i = !0);
-		return i;
+	function observerAdded(addedNodes, is_root) {
+		let out = false;
+		for (const element of addedNodes) {
+			if (is_root) collectChildren(element).then(observerAdded);
+			if (!store.has(element)) continue;
+			const ls = store.get(element);
+			if (!ls.length_c) continue;
+			element.dispatchEvent(new Event(evc));
+			ls.connected = /* @__PURE__ */ new WeakSet();
+			ls.length_c = 0;
+			if (!ls.length_d) store.delete(element);
+			out = true;
+		}
+		return out;
 	}
-	function I(s) {
+	function observerRemoved(removedNodes, is_root) {
+		let out = false;
+		for (const element of removedNodes) {
+			if (is_root) collectChildren(element).then(observerRemoved);
+			if (!store.has(element)) continue;
+			const ls = store.get(element);
+			if (!ls.length_d) continue;
+			(globalThis.queueMicrotask || setTimeout)(dispatchRemove(element));
+			out = true;
+		}
+		return out;
+	}
+	function dispatchRemove(element) {
 		return () => {
-			s.isConnected || (s.dispatchEvent(new Event(w)), t.delete(s));
+			if (element.isConnected) return;
+			element.dispatchEvent(new Event(evd));
+			store.delete(element);
 		};
 	}
 }
 
 // src/customElement.js
-function wt(t, e, r = rt) {
-	let n = t.host || t;
-	O.push({
-		scope: n,
-		host: (...d) => d.length ? d.forEach((f) => f(n)) : n
-	}), typeof r == "function" && (r = r.call(n, n));
-	let o = n[x];
-	o || nt(n);
-	let c = e.call(n, r);
-	return o || n.dispatchEvent(new Event(v)), t.nodeType === 11 && typeof t.mode == "string" && n.addEventListener(w, _.observe(t), { once: !0 }), O.pop(), t.append(c);
+function customElementRender(target, render, props = observedAttributes2) {
+	const custom_element = target.host || target;
+	scope.push({
+		scope: custom_element,
+		host: (...c) => c.length ? c.forEach((c2) => c2(custom_element)) : custom_element
+	});
+	if (typeof props === "function") props = props.call(custom_element, custom_element);
+	const is_lte = custom_element[keyLTE];
+	if (!is_lte) lifecyclesToEvents(custom_element);
+	const out = render.call(custom_element, props);
+	if (!is_lte) custom_element.dispatchEvent(new Event(evc));
+	if (target.nodeType === 11 && typeof target.mode === "string")
+		custom_element.addEventListener(evd, c_ch_o.observe(target), { once: true });
+	scope.pop();
+	return target.append(out);
 }
-function nt(t) {
-	return j(t.prototype, "connectedCallback", function(e, r, n) {
-		e.apply(r, n), r.dispatchEvent(new Event(v));
-	}), j(t.prototype, "disconnectedCallback", function(e, r, n) {
-		e.apply(r, n), (globalThis.queueMicrotask || setTimeout)(
-			() => !r.isConnected && r.dispatchEvent(new Event(w))
+function lifecyclesToEvents(class_declaration) {
+	wrapMethod(class_declaration.prototype, "connectedCallback", function(target, thisArg, detail) {
+		target.apply(thisArg, detail);
+		thisArg.dispatchEvent(new Event(evc));
+	});
+	wrapMethod(class_declaration.prototype, "disconnectedCallback", function(target, thisArg, detail) {
+		target.apply(thisArg, detail);
+		(globalThis.queueMicrotask || setTimeout)(
+			() => !thisArg.isConnected && thisArg.dispatchEvent(new Event(evd))
 		);
-	}), j(t.prototype, "attributeChangedCallback", function(e, r, n) {
-		let [o, , c] = n;
-		r.dispatchEvent(new CustomEvent(y, {
-			detail: [o, c]
-		})), e.apply(r, n);
-	}), t.prototype[x] = !0, t;
+	});
+	wrapMethod(class_declaration.prototype, "attributeChangedCallback", function(target, thisArg, detail) {
+		const [attribute, , value] = detail;
+		thisArg.dispatchEvent(new CustomEvent(eva, {
+			detail: [attribute, value]
+		}));
+		target.apply(thisArg, detail);
+	});
+	class_declaration.prototype[keyLTE] = true;
+	return class_declaration;
 }
-function j(t, e, r) {
-	t[e] = new Proxy(t[e] || (() => {
-	}), { apply: r });
+function wrapMethod(obj, method, apply) {
+	obj[method] = new Proxy(obj[method] || (() => {
+	}), { apply });
 }
-function rt(t) {
-	return q(t, (e, r) => e.getAttribute(r));
+function observedAttributes2(instance) {
+	return observedAttributes(instance, (i, n) => i.getAttribute(n));
 }
 
 // src/events.js
-function yt(t, e, r) {
-	return e || (e = {}), function(o, ...c) {
-		r && (c.unshift(o), o = typeof r == "function" ? r() : r);
-		let d = c.length ? new CustomEvent(t, Object.assign({ detail: c[0] }, e)) : new Event(t, e);
-		return o.dispatchEvent(d);
+function dispatchEvent(name, options, host) {
+	if (!options) options = {};
+	return function dispatch(element, ...d) {
+		if (host) {
+			d.unshift(element);
+			element = typeof host === "function" ? host() : host;
+		}
+		const event = d.length ? new CustomEvent(name, oAssign({ detail: d[0] }, options)) : new Event(name, options);
+		return element.dispatchEvent(event);
 	};
 }
-function D(t, e, r) {
-	return function(o) {
-		return o.addEventListener(t, e, r), o;
+function on(event, listener, options) {
+	return function registerElement(element) {
+		element.addEventListener(event, listener, options);
+		return element;
 	};
 }
-var B = (t) => Object.assign({}, typeof t == "object" ? t : null, { once: !0 });
-D.connected = function(t, e) {
-	return e = B(e), function(n) {
-		return n.addEventListener(v, t, e), n[x] ? n : n.isConnected ? (n.dispatchEvent(new Event(v)), n) : (L(e.signal, () => _.offConnected(n, t)) && _.onConnected(n, t), n);
+var lifeOptions = (obj) => oAssign({}, typeof obj === "object" ? obj : null, { once: true });
+on.connected = function(listener, options) {
+	options = lifeOptions(options);
+	return function registerElement(element) {
+		element.addEventListener(evc, listener, options);
+		if (element[keyLTE]) return element;
+		if (element.isConnected) return element.dispatchEvent(new Event(evc)), element;
+		const c = onAbort(options.signal, () => c_ch_o.offConnected(element, listener));
+		if (c) c_ch_o.onConnected(element, listener);
+		return element;
 	};
 };
-D.disconnected = function(t, e) {
-	return e = B(e), function(n) {
-		return n.addEventListener(w, t, e), n[x] || L(e.signal, () => _.offDisconnected(n, t)) && _.onDisconnected(n, t), n;
+on.disconnected = function(listener, options) {
+	options = lifeOptions(options);
+	return function registerElement(element) {
+		element.addEventListener(evd, listener, options);
+		if (element[keyLTE]) return element;
+		const c = onAbort(options.signal, () => c_ch_o.offDisconnected(element, listener));
+		if (c) c_ch_o.onDisconnected(element, listener);
+		return element;
 	};
 };
-var W = /* @__PURE__ */ new WeakMap();
-D.disconnectedAsAbort = function(t) {
-	if (W.has(t)) return W.get(t);
-	let e = new AbortController();
-	return W.set(t, e), t(D.disconnected(() => e.abort())), e;
+var store_abort = /* @__PURE__ */ new WeakMap();
+on.disconnectedAsAbort = function(host) {
+	if (store_abort.has(host)) return store_abort.get(host);
+	const a = new AbortController();
+	store_abort.set(host, a);
+	host(on.disconnected(() => a.abort()));
+	return a;
 };
-var ot = /* @__PURE__ */ new WeakSet();
-D.attributeChanged = function(t, e) {
-	return typeof e != "object" && (e = {}), function(n) {
-		if (n.addEventListener(y, t, e), n[x] || ot.has(n) || !a.M) return n;
-		let o = new a.M(function(d) {
-			for (let { attributeName: f, target: p } of d)
-				p.dispatchEvent(
-					new CustomEvent(y, { detail: [f, p.getAttribute(f)] })
+var els_attribute_store = /* @__PURE__ */ new WeakSet();
+on.attributeChanged = function(listener, options) {
+	if (typeof options !== "object")
+		options = {};
+	return function registerElement(element) {
+		element.addEventListener(eva, listener, options);
+		if (element[keyLTE] || els_attribute_store.has(element))
+			return element;
+		if (!enviroment.M) return element;
+		const observer = new enviroment.M(function(mutations) {
+			for (const { attributeName, target } of mutations)
+				target.dispatchEvent(
+					new CustomEvent(eva, { detail: [attributeName, target.getAttribute(attributeName)] })
 				);
 		});
-		return L(e.signal, () => o.disconnect()) && o.observe(n, { attributes: !0 }), n;
+		const c = onAbort(options.signal, () => observer.disconnect());
+		if (c) observer.observe(element, { attributes: true });
+		return element;
 	};
 };
 
 globalThis.dde= {
-	assign: R,
-	assignAttribute: U,
-	chainableAppend: J,
-	classListDeclarative: K,
-	createElement: P,
-	createElementNS: pt,
-	customElementRender: wt,
-	customElementWithDDE: nt,
-	dispatchEvent: yt,
-	el: P,
-	elNS: pt,
-	elementAttribute: Q,
-	lifecyclesToEvents: nt,
-	observedAttributes: rt,
-	on: D,
-	queue: dt,
-	registerReactivity: Z,
-	scope: O,
-	simulateSlots: lt
+	assign,
+	assignAttribute,
+	chainableAppend,
+	classListDeclarative,
+	createElement,
+	createElementNS,
+	customElementRender,
+	customElementWithDDE: lifecyclesToEvents,
+	dispatchEvent,
+	el: createElement,
+	elNS: createElementNS,
+	elementAttribute,
+	lifecyclesToEvents,
+	observedAttributes: observedAttributes2,
+	on,
+	queue,
+	registerReactivity,
+	scope,
+	simulateSlots
 };
 
 })();

dist/esm-with-signals.d.ts

@@ -52,9 +52,12 @@ type IsReadonly<T, K extends keyof T> =
  * @private
  */
 type ElementAttributes<T extends SupportedElement>= Partial<{
-	[K in keyof _fromElsInterfaces<T>]: IsReadonly<_fromElsInterfaces<T>, K> extends false
-		? _fromElsInterfaces<T>[K] | ddeSignal<_fromElsInterfaces<T>[K]>
-		: ddeStringable
+	[K in keyof _fromElsInterfaces<T>]:
+		_fromElsInterfaces<T>[K] extends ((...p: any[])=> any)
+			? _fromElsInterfaces<T>[K] | ((...p: Parameters<_fromElsInterfaces<T>[K]>)=> ddeSignal<ReturnType<_fromElsInterfaces<T>[K]>>)
+			: (IsReadonly<_fromElsInterfaces<T>, K> extends false
+				? _fromElsInterfaces<T>[K] | ddeSignal<_fromElsInterfaces<T>[K]>
+				: ddeStringable)
 } & AttrsModified> & Record<string, any>;
 export function classListDeclarative<El extends SupportedElement>(
 	element: El,
@@ -515,7 +518,14 @@ interface ddeSVGTSpanElement extends SVGTSpanElement{ append: ddeAppend<ddeSVGTS
 interface ddeSVGUseElement extends SVGUseElement{ append: ddeAppend<ddeSVGUseElement>; }
 interface ddeSVGViewElement extends SVGViewElement{ append: ddeAppend<ddeSVGViewElement>; }
 // editorconfig-checker-enable
-export type Signal<V, A>= (set?: V)=> V & A;
+export interface Signal<V, A> {
+	/** The current value of the signal */
+	get(): V;
+	/** Set new value of the signal */
+	set(value: V): V;
+	toJSON(): V;
+	valueOf(): V;
+}
 type Action<V>= (this: { value: V, stopPropagation(): void }, ...a: any[])=> typeof signal._ | void;
 //type SymbolSignal= Symbol;
 type SymbolOnclear= symbol;
@@ -544,7 +554,7 @@ interface signal{
 	 * ```js
 	 * const name= S("Jan");
 	 * const surname= S("Andrle");
-	 * const fullname= S(()=> name()+" "+surname());
+	 * const fullname= S(()=> name.get()+" "+surname.get());
 	 * ```
 	 * @param value Initial signal value. Or function computing value from other signals.
 	 * @param actions Use to define actions on the signal. Such as add item to the array.

dist/esm.d.ts

@@ -52,9 +52,12 @@ type IsReadonly<T, K extends keyof T> =
  * @private
  */
 type ElementAttributes<T extends SupportedElement>= Partial<{
-	[K in keyof _fromElsInterfaces<T>]: IsReadonly<_fromElsInterfaces<T>, K> extends false
-		? _fromElsInterfaces<T>[K] | ddeSignal<_fromElsInterfaces<T>[K]>
-		: ddeStringable
+	[K in keyof _fromElsInterfaces<T>]:
+		_fromElsInterfaces<T>[K] extends ((...p: any[])=> any)
+			? _fromElsInterfaces<T>[K] | ((...p: Parameters<_fromElsInterfaces<T>[K]>)=> ddeSignal<ReturnType<_fromElsInterfaces<T>[K]>>)
+			: (IsReadonly<_fromElsInterfaces<T>, K> extends false
+				? _fromElsInterfaces<T>[K] | ddeSignal<_fromElsInterfaces<T>[K]>
+				: ddeStringable)
 } & AttrsModified> & Record<string, any>;
 export function classListDeclarative<El extends SupportedElement>(
 	element: El,

dist/esm.js

@@ -1,451 +1,659 @@
-// src/signals-common.js
-var C = {
-	isSignal(t) {
-		return !1;
-	},
-	processReactiveAttribute(t, e, r, n) {
-		return r;
-	}
-};
-function Z(t, e = !0) {
-	return e ? Object.assign(C, t) : (Object.setPrototypeOf(t, C), t);
-}
-function S(t) {
-	return C.isPrototypeOf(t) && t !== C ? t : C;
-}
-
 // src/helpers.js
-function m(t) {
-	return typeof t > "u";
+function isUndef(value) {
+	return typeof value === "undefined";
 }
-function L(t, e) {
-	if (!t || !(t instanceof AbortSignal))
-		return !0;
-	if (!t.aborted)
-		return t.addEventListener("abort", e), function() {
-			t.removeEventListener("abort", e);
-		};
+function isInstance(obj, cls) {
+	return obj instanceof cls;
 }
-function q(t, e) {
-	let { observedAttributes: r = [] } = t.constructor;
-	return r.reduce(function(n, o) {
-		return n[G(o)] = e(t, o), n;
+function isProtoFrom(obj, cls) {
+	return Object.prototype.isPrototypeOf.call(cls, obj);
+}
+function oAssign(...o) {
+	return Object.assign(...o);
+}
+function onAbort(signal, listener) {
+	if (!signal || !isInstance(signal, AbortSignal))
+		return true;
+	if (signal.aborted)
+		return;
+	signal.addEventListener("abort", listener);
+	return function cleanUp() {
+		signal.removeEventListener("abort", listener);
+	};
+}
+function observedAttributes(instance, observedAttribute) {
+	const { observedAttributes: observedAttributes3 = [] } = instance.constructor;
+	return observedAttributes3.reduce(function(out, name) {
+		out[kebabToCamel(name)] = observedAttribute(instance, name);
+		return out;
 	}, {});
 }
-function G(t) {
-	return t.replace(/-./g, (e) => e[1].toUpperCase());
+function kebabToCamel(name) {
+	return name.replace(/-./g, (x) => x[1].toUpperCase());
+}
+
+// src/signals-lib/common.js
+var signals_global = {
+	/**
+	* Checks if a value is a signal
+	* @param {any} attributes - Value to check
+	* @returns {boolean} Whether the value is a signal
+	*/
+	isSignal(attributes) {
+		return false;
+	},
+	/**
+	* Processes an attribute that might be reactive
+	* @param {Element} obj - Element that owns the attribute
+	* @param {string} key - Attribute name
+	* @param {any} attr - Attribute value
+	* @param {Function} set - Function to set the attribute
+	* @returns {any} Processed attribute value
+	*/
+	processReactiveAttribute(obj, key, attr, set) {
+		return attr;
+	}
+};
+function registerReactivity(def, global = true) {
+	if (global) return oAssign(signals_global, def);
+	Object.setPrototypeOf(def, signals_global);
+	return def;
+}
+function signals(_this) {
+	return isProtoFrom(_this, signals_global) && _this !== signals_global ? _this : signals_global;
 }
 
 // src/dom-common.js
-var a = {
-	setDeleteAttr: V,
+var enviroment = {
+	setDeleteAttr,
 	ssr: "",
 	D: globalThis.document,
 	F: globalThis.DocumentFragment,
 	H: globalThis.HTMLElement,
 	S: globalThis.SVGElement,
 	M: globalThis.MutationObserver,
-	q: (t) => t || Promise.resolve()
+	q: (p) => p || Promise.resolve()
 };
-function V(t, e, r) {
-	if (Reflect.set(t, e, r), !!m(r)) {
-		if (Reflect.deleteProperty(t, e), t instanceof a.H && t.getAttribute(e) === "undefined")
-			return t.removeAttribute(e);
-		if (Reflect.get(t, e) === "undefined")
-			return Reflect.set(t, e, "");
-	}
+function setDeleteAttr(obj, prop, val) {
+	Reflect.set(obj, prop, val);
+	if (!isUndef(val)) return;
+	Reflect.deleteProperty(obj, prop);
+	if (isInstance(obj, enviroment.H) && obj.getAttribute(prop) === "undefined")
+		return obj.removeAttribute(prop);
+	if (Reflect.get(obj, prop) === "undefined")
+		return Reflect.set(obj, prop, "");
 }
-var x = "__dde_lifecyclesToEvents", v = "dde:connected", w = "dde:disconnected", y = "dde:attributeChanged";
+var keyLTE = "__dde_lifecyclesToEvents";
+var evc = "dde:connected";
+var evd = "dde:disconnected";
+var eva = "dde:attributeChanged";
 
 // src/dom.js
-function dt(t) {
-	return a.q(t);
+function queue(promise) {
+	return enviroment.q(promise);
 }
-var g = [{
+var scopes = [{
 	get scope() {
-		return a.D.body;
+		return enviroment.D.body;
 	},
-	host: (t) => t ? t(a.D.body) : a.D.body,
-	prevent: !0
-}], O = {
+	host: (c) => c ? c(enviroment.D.body) : enviroment.D.body,
+	prevent: true
+}];
+var scope = {
+	/**
+	* Gets the current scope
+	* @returns {Object} Current scope context
+	*/
 	get current() {
-		return g[g.length - 1];
+		return scopes[scopes.length - 1];
 	},
+	/**
+	* Gets the host element of the current scope
+	* @returns {Function} Host accessor function
+	*/
 	get host() {
 		return this.current.host;
 	},
+	/**
+	* Prevents default behavior in the current scope
+	* @returns {Object} Current scope context
+	*/
 	preventDefault() {
-		let { current: t } = this;
-		return t.prevent = !0, t;
+		const { current } = this;
+		current.prevent = true;
+		return current;
 	},
+	/**
+	* Gets a copy of the current scope stack
+	* @returns {Array} Copy of scope stack
+	*/
 	get state() {
-		return [...g];
+		return [...scopes];
 	},
-	push(t = {}) {
-		return g.push(Object.assign({}, this.current, { prevent: !1 }, t));
+	/**
+	* Pushes a new scope to the stack
+	* @param {Object} [s={}] - Scope object to push
+	* @returns {number} New length of the scope stack
+	*/
+	push(s = {}) {
+		return scopes.push(oAssign({}, this.current, { prevent: false }, s));
 	},
+	/**
+	* Pushes the root scope to the stack
+	* @returns {number} New length of the scope stack
+	*/
 	pushRoot() {
-		return g.push(g[0]);
+		return scopes.push(scopes[0]);
 	},
+	/**
+	* Pops the current scope from the stack
+	* @returns {Object|undefined} Popped scope or undefined if only one scope remains
+	*/
 	pop() {
-		if (g.length !== 1)
-			return g.pop();
+		if (scopes.length === 1) return;
+		return scopes.pop();
 	}
 };
-function k(...t) {
-	return this.appendOriginal(...t), this;
+function append(...els) {
+	this.appendOriginal(...els);
+	return this;
 }
-function J(t) {
-	return t.append === k || (t.appendOriginal = t.append, t.append = k), t;
+function chainableAppend(el) {
+	if (el.append === append) return el;
+	el.appendOriginal = el.append;
+	el.append = append;
+	return el;
 }
-var T;
-function P(t, e, ...r) {
-	let n = S(this), o = 0, c, d;
-	switch ((Object(e) !== e || n.isSignal(e)) && (e = { textContent: e }), !0) {
-		case typeof t == "function": {
-			o = 1;
-			let f = (...l) => l.length ? (o === 1 ? r.unshift(...l) : l.forEach((E) => E(d)), void 0) : d;
-			O.push({ scope: t, host: f }), c = t(e || void 0);
-			let p = c instanceof a.F;
-			if (c.nodeName === "#comment") break;
-			let b = P.mark({
+var namespace;
+function createElement(tag, attributes, ...addons) {
+	const s = signals(this);
+	let scoped = 0;
+	let el, el_host;
+	if (Object(attributes) !== attributes || s.isSignal(attributes))
+		attributes = { textContent: attributes };
+	switch (true) {
+		case typeof tag === "function": {
+			scoped = 1;
+			const host = (...c) => !c.length ? el_host : (scoped === 1 ? addons.unshift(...c) : c.forEach((c2) => c2(el_host)), void 0);
+			scope.push({ scope: tag, host });
+			el = tag(attributes || void 0);
+			const is_fragment = isInstance(el, enviroment.F);
+			if (el.nodeName === "#comment") break;
+			const el_mark = createElement.mark({
 				type: "component",
-				name: t.name,
-				host: p ? "this" : "parentElement"
+				name: tag.name,
+				host: is_fragment ? "this" : "parentElement"
 			});
-			c.prepend(b), p && (d = b);
+			el.prepend(el_mark);
+			if (is_fragment) el_host = el_mark;
 			break;
 		}
-		case t === "#text":
-			c = R.call(this, a.D.createTextNode(""), e);
+		case tag === "#text":
+			el = assign.call(this, enviroment.D.createTextNode(""), attributes);
 			break;
-		case (t === "<>" || !t):
-			c = R.call(this, a.D.createDocumentFragment(), e);
+		case (tag === "<>" || !tag):
+			el = assign.call(this, enviroment.D.createDocumentFragment(), attributes);
 			break;
-		case !!T:
-			c = R.call(this, a.D.createElementNS(T, t), e);
+		case Boolean(namespace):
+			el = assign.call(this, enviroment.D.createElementNS(namespace, tag), attributes);
 			break;
-		case !c:
-			c = R.call(this, a.D.createElement(t), e);
+		case !el:
+			el = assign.call(this, enviroment.D.createElement(tag), attributes);
 	}
-	return J(c), d || (d = c), r.forEach((f) => f(d)), o && O.pop(), o = 2, c;
+	chainableAppend(el);
+	if (!el_host) el_host = el;
+	addons.forEach((c) => c(el_host));
+	if (scoped) scope.pop();
+	scoped = 2;
+	return el;
 }
-P.mark = function(t, e = !1) {
-	t = Object.entries(t).map(([o, c]) => o + `="${c}"`).join(" ");
-	let r = e ? "" : "/", n = a.D.createComment(`<dde:mark ${t}${a.ssr}${r}>`);
-	return e && (n.end = a.D.createComment("</dde:mark>")), n;
+createElement.mark = function(attrs, is_open = false) {
+	attrs = Object.entries(attrs).map(([n, v]) => n + `="${v}"`).join(" ");
+	const end = is_open ? "" : "/";
+	const out = enviroment.D.createComment(`<dde:mark ${attrs}${enviroment.ssr}${end}>`);
+	if (is_open) out.end = enviroment.D.createComment("</dde:mark>");
+	return out;
 };
-function pt(t) {
-	let e = this;
-	return function(...n) {
-		T = t;
-		let o = P.call(e, ...n);
-		return T = void 0, o;
+function createElementNS(ns) {
+	const _this = this;
+	return function createElementNSCurried(...rest) {
+		namespace = ns;
+		const el = createElement.call(_this, ...rest);
+		namespace = void 0;
+		return el;
 	};
 }
-function lt(t, e = t) {
-	let r = "\xB9\u2070", n = "\u2713", o = Object.fromEntries(
-		Array.from(e.querySelectorAll("slot")).filter((c) => !c.name.endsWith(r)).map((c) => [c.name += r, c])
+function simulateSlots(element, root = element) {
+	const mark_e = "\xB9\u2070", mark_s = "\u2713";
+	const slots = Object.fromEntries(
+		Array.from(root.querySelectorAll("slot")).filter((s) => !s.name.endsWith(mark_e)).map((s) => [s.name += mark_e, s])
 	);
-	if (t.append = new Proxy(t.append, {
-		apply(c, d, f) {
-			if (f[0] === e) return c.apply(t, f);
-			for (let p of f) {
-				let b = (p.slot || "") + r;
+	element.append = new Proxy(element.append, {
+		apply(orig, _, els) {
+			if (els[0] === root) return orig.apply(element, els);
+			for (const el of els) {
+				const name = (el.slot || "") + mark_e;
 				try {
-					Q(p, "remove", "slot");
-				} catch {
+					elementAttribute(el, "remove", "slot");
+				} catch (_error) {
 				}
-				let l = o[b];
-				if (!l) return;
-				l.name.startsWith(n) || (l.childNodes.forEach((E) => E.remove()), l.name = n + b), l.append(p);
+				const slot = slots[name];
+				if (!slot) return;
+				if (!slot.name.startsWith(mark_s)) {
+					slot.childNodes.forEach((c) => c.remove());
+					slot.name = mark_s + name;
+				}
+				slot.append(el);
 			}
-			return t.append = c, t;
+			element.append = orig;
+			return element;
 		}
-	}), t !== e) {
-		let c = Array.from(t.childNodes);
-		t.append(...c);
+	});
+	if (element !== root) {
+		const els = Array.from(element.childNodes);
+		element.append(...els);
 	}
-	return e;
+	return root;
 }
-var N = /* @__PURE__ */ new WeakMap(), { setDeleteAttr: $ } = a;
-function R(t, ...e) {
-	if (!e.length) return t;
-	N.set(t, H(t, this));
-	for (let [r, n] of Object.entries(Object.assign({}, ...e)))
-		U.call(this, t, r, n);
-	return N.delete(t), t;
+var assign_context = /* @__PURE__ */ new WeakMap();
+var { setDeleteAttr: setDeleteAttr2 } = enviroment;
+function assign(element, ...attributes) {
+	if (!attributes.length) return element;
+	assign_context.set(element, assignContext(element, this));
+	for (const [key, value] of Object.entries(oAssign({}, ...attributes)))
+		assignAttribute.call(this, element, key, value);
+	assign_context.delete(element);
+	return element;
 }
-function U(t, e, r) {
-	let { setRemoveAttr: n, s: o } = H(t, this), c = this;
-	r = o.processReactiveAttribute(
-		t,
-		e,
-		r,
-		(f, p) => U.call(c, t, f, p)
+function assignAttribute(element, key, value) {
+	const { setRemoveAttr, s } = assignContext(element, this);
+	const _this = this;
+	value = s.processReactiveAttribute(
+		element,
+		key,
+		value,
+		(key2, value2) => assignAttribute.call(_this, element, key2, value2)
 	);
-	let [d] = e;
-	if (d === "=") return n(e.slice(1), r);
-	if (d === ".") return F(t, e.slice(1), r);
-	if (/(aria|data)([A-Z])/.test(e))
-		return e = e.replace(/([a-z])([A-Z])/g, "$1-$2").toLowerCase(), n(e, r);
-	switch (e === "className" && (e = "class"), e) {
+	const [k] = key;
+	if ("=" === k) return setRemoveAttr(key.slice(1), value);
+	if ("." === k) return setDelete(element, key.slice(1), value);
+	if (/(aria|data)([A-Z])/.test(key)) {
+		key = key.replace(/([a-z])([A-Z])/g, "$1-$2").toLowerCase();
+		return setRemoveAttr(key, value);
+	}
+	if ("className" === key) key = "class";
+	switch (key) {
 		case "xlink:href":
-			return n(e, r, "http://www.w3.org/1999/xlink");
+			return setRemoveAttr(key, value, "http://www.w3.org/1999/xlink");
 		case "textContent":
-			return $(t, e, r);
+			return setDeleteAttr2(element, key, value);
 		case "style":
-			if (typeof r != "object") break;
+			if (typeof value !== "object") break;
 		/* falls through */
 		case "dataset":
-			return M(o, e, t, r, F.bind(null, t[e]));
+			return forEachEntries(s, key, element, value, setDelete.bind(null, element[key]));
 		case "ariaset":
-			return M(o, e, t, r, (f, p) => n("aria-" + f, p));
+			return forEachEntries(s, key, element, value, (key2, val) => setRemoveAttr("aria-" + key2, val));
 		case "classList":
-			return K.call(c, t, r);
+			return classListDeclarative.call(_this, element, value);
 	}
-	return X(t, e) ? $(t, e, r) : n(e, r);
+	return isPropSetter(element, key) ? setDeleteAttr2(element, key, value) : setRemoveAttr(key, value);
 }
-function H(t, e) {
-	if (N.has(t)) return N.get(t);
-	let n = (t instanceof a.S ? tt : Y).bind(null, t, "Attribute"), o = S(e);
-	return { setRemoveAttr: n, s: o };
+function assignContext(element, _this) {
+	if (assign_context.has(element)) return assign_context.get(element);
+	const is_svg = isInstance(element, enviroment.S);
+	const setRemoveAttr = (is_svg ? setRemoveNS : setRemove).bind(null, element, "Attribute");
+	const s = signals(_this);
+	return { setRemoveAttr, s };
 }
-function K(t, e) {
-	let r = S(this);
-	return M(
-		r,
+function classListDeclarative(element, toggle) {
+	const s = signals(this);
+	forEachEntries(
+		s,
 		"classList",
-		t,
-		e,
-		(n, o) => t.classList.toggle(n, o === -1 ? void 0 : !!o)
-	), t;
+		element,
+		toggle,
+		(class_name, val) => element.classList.toggle(class_name, val === -1 ? void 0 : Boolean(val))
+	);
+	return element;
 }
-function Q(t, e, r, n) {
-	return t instanceof a.H ? t[e + "Attribute"](r, n) : t[e + "AttributeNS"](null, r, n);
+function elementAttribute(element, op, key, value) {
+	if (isInstance(element, enviroment.H))
+		return element[op + "Attribute"](key, value);
+	return element[op + "AttributeNS"](null, key, value);
 }
-function X(t, e) {
-	if (!(e in t)) return !1;
-	let r = z(t, e);
-	return !m(r.set);
+function isPropSetter(el, key) {
+	if (!(key in el)) return false;
+	const des = getPropDescriptor(el, key);
+	return !isUndef(des.set);
 }
-function z(t, e) {
-	if (t = Object.getPrototypeOf(t), !t) return {};
-	let r = Object.getOwnPropertyDescriptor(t, e);
-	return r || z(t, e);
+function getPropDescriptor(p, key) {
+	p = Object.getPrototypeOf(p);
+	if (!p) return {};
+	const des = Object.getOwnPropertyDescriptor(p, key);
+	if (!des) return getPropDescriptor(p, key);
+	return des;
 }
-function M(t, e, r, n, o) {
-	let c = String;
-	if (!(typeof n != "object" || n === null))
-		return Object.entries(n).forEach(function([f, p]) {
-			f && (f = new c(f), f.target = e, p = t.processReactiveAttribute(r, f, p, o), o(f, p));
-		});
+function forEachEntries(s, target, element, obj, cb) {
+	const S = String;
+	if (typeof obj !== "object" || obj === null) return;
+	return Object.entries(obj).forEach(function process([key, val]) {
+		if (!key) return;
+		key = new S(key);
+		key.target = target;
+		val = s.processReactiveAttribute(element, key, val, cb);
+		cb(key, val);
+	});
 }
-function Y(t, e, r, n) {
-	return t[(m(n) ? "remove" : "set") + e](r, n);
+function setRemove(obj, prop, key, val) {
+	return obj[(isUndef(val) ? "remove" : "set") + prop](key, val);
 }
-function tt(t, e, r, n, o = null) {
-	return t[(m(n) ? "remove" : "set") + e + "NS"](o, r, n);
+function setRemoveNS(obj, prop, key, val, ns = null) {
+	return obj[(isUndef(val) ? "remove" : "set") + prop + "NS"](ns, key, val);
 }
-function F(t, e, r) {
-	if (Reflect.set(t, e, r), !!m(r))
-		return Reflect.deleteProperty(t, e);
+function setDelete(obj, key, val) {
+	Reflect.set(obj, key, val);
+	if (!isUndef(val)) return;
+	return Reflect.deleteProperty(obj, key);
 }
 
 // src/events-observer.js
-var _ = a.M ? et() : new Proxy({}, {
+var c_ch_o = enviroment.M ? connectionsChangesObserverConstructor() : new Proxy({}, {
 	get() {
 		return () => {
 		};
 	}
 });
-function et() {
-	let t = /* @__PURE__ */ new Map(), e = !1, r = (s) => function(u) {
-		for (let i of u)
-			if (i.type === "childList") {
-				if (l(i.addedNodes, !0)) {
-					s();
-					continue;
-				}
-				E(i.removedNodes, !0) && s();
+function connectionsChangesObserverConstructor() {
+	const store = /* @__PURE__ */ new Map();
+	let is_observing = false;
+	const observerListener = (stop2) => function(mutations) {
+		for (const mutation of mutations) {
+			if (mutation.type !== "childList") continue;
+			if (observerAdded(mutation.addedNodes, true)) {
+				stop2();
+				continue;
 			}
-	}, n = new a.M(r(f));
-	return {
-		observe(s) {
-			let u = new a.M(r(() => {
-			}));
-			return u.observe(s, { childList: !0, subtree: !0 }), () => u.disconnect();
-		},
-		onConnected(s, u) {
-			d();
-			let i = c(s);
-			i.connected.has(u) || (i.connected.add(u), i.length_c += 1);
-		},
-		offConnected(s, u) {
-			if (!t.has(s)) return;
-			let i = t.get(s);
-			i.connected.has(u) && (i.connected.delete(u), i.length_c -= 1, o(s, i));
-		},
-		onDisconnected(s, u) {
-			d();
-			let i = c(s);
-			i.disconnected.has(u) || (i.disconnected.add(u), i.length_d += 1);
-		},
-		offDisconnected(s, u) {
-			if (!t.has(s)) return;
-			let i = t.get(s);
-			i.disconnected.has(u) && (i.disconnected.delete(u), i.length_d -= 1, o(s, i));
+			if (observerRemoved(mutation.removedNodes, true))
+				stop2();
 		}
 	};
-	function o(s, u) {
-		u.length_c || u.length_d || (t.delete(s), f());
+	const observer = new enviroment.M(observerListener(stop));
+	return {
+		/**
+		* Creates an observer for a specific element
+		* @param {Element} element - Element to observe
+		* @returns {Function} Cleanup function
+		*/
+		observe(element) {
+			const o = new enviroment.M(observerListener(() => {
+			}));
+			o.observe(element, { childList: true, subtree: true });
+			return () => o.disconnect();
+		},
+		/**
+		* Register a connection listener for an element
+		* @param {Element} element - Element to watch
+		* @param {Function} listener - Callback for connection event
+		*/
+		onConnected(element, listener) {
+			start();
+			const listeners = getElementStore(element);
+			if (listeners.connected.has(listener)) return;
+			listeners.connected.add(listener);
+			listeners.length_c += 1;
+		},
+		/**
+		* Unregister a connection listener
+		* @param {Element} element - Element being watched
+		* @param {Function} listener - Callback to remove
+		*/
+		offConnected(element, listener) {
+			if (!store.has(element)) return;
+			const ls = store.get(element);
+			if (!ls.connected.has(listener)) return;
+			ls.connected.delete(listener);
+			ls.length_c -= 1;
+			cleanWhenOff(element, ls);
+		},
+		/**
+		* Register a disconnection listener for an element
+		* @param {Element} element - Element to watch
+		* @param {Function} listener - Callback for disconnection event
+		*/
+		onDisconnected(element, listener) {
+			start();
+			const listeners = getElementStore(element);
+			if (listeners.disconnected.has(listener)) return;
+			listeners.disconnected.add(listener);
+			listeners.length_d += 1;
+		},
+		/**
+		* Unregister a disconnection listener
+		* @param {Element} element - Element being watched
+		* @param {Function} listener - Callback to remove
+		*/
+		offDisconnected(element, listener) {
+			if (!store.has(element)) return;
+			const ls = store.get(element);
+			if (!ls.disconnected.has(listener)) return;
+			ls.disconnected.delete(listener);
+			ls.length_d -= 1;
+			cleanWhenOff(element, ls);
+		}
+	};
+	function cleanWhenOff(element, ls) {
+		if (ls.length_c || ls.length_d)
+			return;
+		store.delete(element);
+		stop();
 	}
-	function c(s) {
-		if (t.has(s)) return t.get(s);
-		let u = {
+	function getElementStore(element) {
+		if (store.has(element)) return store.get(element);
+		const out = {
 			connected: /* @__PURE__ */ new WeakSet(),
 			length_c: 0,
 			disconnected: /* @__PURE__ */ new WeakSet(),
 			length_d: 0
 		};
-		return t.set(s, u), u;
+		store.set(element, out);
+		return out;
 	}
-	function d() {
-		e || (e = !0, n.observe(a.D.body, { childList: !0, subtree: !0 }));
+	function start() {
+		if (is_observing) return;
+		is_observing = true;
+		observer.observe(enviroment.D.body, { childList: true, subtree: true });
 	}
-	function f() {
-		!e || t.size || (e = !1, n.disconnect());
+	function stop() {
+		if (!is_observing || store.size) return;
+		is_observing = false;
+		observer.disconnect();
 	}
-	function p() {
-		return new Promise(function(s) {
-			(requestIdleCallback || requestAnimationFrame)(s);
+	function requestIdle() {
+		return new Promise(function(resolve) {
+			(requestIdleCallback || requestAnimationFrame)(resolve);
 		});
 	}
-	async function b(s) {
-		t.size > 30 && await p();
-		let u = [];
-		if (!(s instanceof Node)) return u;
-		for (let i of t.keys())
-			i === s || !(i instanceof Node) || s.contains(i) && u.push(i);
-		return u;
-	}
-	function l(s, u) {
-		let i = !1;
-		for (let h of s) {
-			if (u && b(h).then(l), !t.has(h)) continue;
-			let A = t.get(h);
-			A.length_c && (h.dispatchEvent(new Event(v)), A.connected = /* @__PURE__ */ new WeakSet(), A.length_c = 0, A.length_d || t.delete(h), i = !0);
+	async function collectChildren(element) {
+		if (store.size > 30)
+			await requestIdle();
+		const out = [];
+		if (!isInstance(element, Node)) return out;
+		for (const el of store.keys()) {
+			if (el === element || !isInstance(el, Node)) continue;
+			if (element.contains(el))
+				out.push(el);
 		}
-		return i;
+		return out;
 	}
-	function E(s, u) {
-		let i = !1;
-		for (let h of s)
-			u && b(h).then(E), !(!t.has(h) || !t.get(h).length_d) && ((globalThis.queueMicrotask || setTimeout)(I(h)), i = !0);
-		return i;
+	function observerAdded(addedNodes, is_root) {
+		let out = false;
+		for (const element of addedNodes) {
+			if (is_root) collectChildren(element).then(observerAdded);
+			if (!store.has(element)) continue;
+			const ls = store.get(element);
+			if (!ls.length_c) continue;
+			element.dispatchEvent(new Event(evc));
+			ls.connected = /* @__PURE__ */ new WeakSet();
+			ls.length_c = 0;
+			if (!ls.length_d) store.delete(element);
+			out = true;
+		}
+		return out;
 	}
-	function I(s) {
+	function observerRemoved(removedNodes, is_root) {
+		let out = false;
+		for (const element of removedNodes) {
+			if (is_root) collectChildren(element).then(observerRemoved);
+			if (!store.has(element)) continue;
+			const ls = store.get(element);
+			if (!ls.length_d) continue;
+			(globalThis.queueMicrotask || setTimeout)(dispatchRemove(element));
+			out = true;
+		}
+		return out;
+	}
+	function dispatchRemove(element) {
 		return () => {
-			s.isConnected || (s.dispatchEvent(new Event(w)), t.delete(s));
+			if (element.isConnected) return;
+			element.dispatchEvent(new Event(evd));
+			store.delete(element);
 		};
 	}
 }
 
 // src/customElement.js
-function wt(t, e, r = rt) {
-	let n = t.host || t;
-	O.push({
-		scope: n,
-		host: (...d) => d.length ? d.forEach((f) => f(n)) : n
-	}), typeof r == "function" && (r = r.call(n, n));
-	let o = n[x];
-	o || nt(n);
-	let c = e.call(n, r);
-	return o || n.dispatchEvent(new Event(v)), t.nodeType === 11 && typeof t.mode == "string" && n.addEventListener(w, _.observe(t), { once: !0 }), O.pop(), t.append(c);
+function customElementRender(target, render, props = observedAttributes2) {
+	const custom_element = target.host || target;
+	scope.push({
+		scope: custom_element,
+		host: (...c) => c.length ? c.forEach((c2) => c2(custom_element)) : custom_element
+	});
+	if (typeof props === "function") props = props.call(custom_element, custom_element);
+	const is_lte = custom_element[keyLTE];
+	if (!is_lte) lifecyclesToEvents(custom_element);
+	const out = render.call(custom_element, props);
+	if (!is_lte) custom_element.dispatchEvent(new Event(evc));
+	if (target.nodeType === 11 && typeof target.mode === "string")
+		custom_element.addEventListener(evd, c_ch_o.observe(target), { once: true });
+	scope.pop();
+	return target.append(out);
 }
-function nt(t) {
-	return j(t.prototype, "connectedCallback", function(e, r, n) {
-		e.apply(r, n), r.dispatchEvent(new Event(v));
-	}), j(t.prototype, "disconnectedCallback", function(e, r, n) {
-		e.apply(r, n), (globalThis.queueMicrotask || setTimeout)(
-			() => !r.isConnected && r.dispatchEvent(new Event(w))
+function lifecyclesToEvents(class_declaration) {
+	wrapMethod(class_declaration.prototype, "connectedCallback", function(target, thisArg, detail) {
+		target.apply(thisArg, detail);
+		thisArg.dispatchEvent(new Event(evc));
+	});
+	wrapMethod(class_declaration.prototype, "disconnectedCallback", function(target, thisArg, detail) {
+		target.apply(thisArg, detail);
+		(globalThis.queueMicrotask || setTimeout)(
+			() => !thisArg.isConnected && thisArg.dispatchEvent(new Event(evd))
 		);
-	}), j(t.prototype, "attributeChangedCallback", function(e, r, n) {
-		let [o, , c] = n;
-		r.dispatchEvent(new CustomEvent(y, {
-			detail: [o, c]
-		})), e.apply(r, n);
-	}), t.prototype[x] = !0, t;
+	});
+	wrapMethod(class_declaration.prototype, "attributeChangedCallback", function(target, thisArg, detail) {
+		const [attribute, , value] = detail;
+		thisArg.dispatchEvent(new CustomEvent(eva, {
+			detail: [attribute, value]
+		}));
+		target.apply(thisArg, detail);
+	});
+	class_declaration.prototype[keyLTE] = true;
+	return class_declaration;
 }
-function j(t, e, r) {
-	t[e] = new Proxy(t[e] || (() => {
-	}), { apply: r });
+function wrapMethod(obj, method, apply) {
+	obj[method] = new Proxy(obj[method] || (() => {
+	}), { apply });
 }
-function rt(t) {
-	return q(t, (e, r) => e.getAttribute(r));
+function observedAttributes2(instance) {
+	return observedAttributes(instance, (i, n) => i.getAttribute(n));
 }
 
 // src/events.js
-function yt(t, e, r) {
-	return e || (e = {}), function(o, ...c) {
-		r && (c.unshift(o), o = typeof r == "function" ? r() : r);
-		let d = c.length ? new CustomEvent(t, Object.assign({ detail: c[0] }, e)) : new Event(t, e);
-		return o.dispatchEvent(d);
+function dispatchEvent(name, options, host) {
+	if (!options) options = {};
+	return function dispatch(element, ...d) {
+		if (host) {
+			d.unshift(element);
+			element = typeof host === "function" ? host() : host;
+		}
+		const event = d.length ? new CustomEvent(name, oAssign({ detail: d[0] }, options)) : new Event(name, options);
+		return element.dispatchEvent(event);
 	};
 }
-function D(t, e, r) {
-	return function(o) {
-		return o.addEventListener(t, e, r), o;
+function on(event, listener, options) {
+	return function registerElement(element) {
+		element.addEventListener(event, listener, options);
+		return element;
 	};
 }
-var B = (t) => Object.assign({}, typeof t == "object" ? t : null, { once: !0 });
-D.connected = function(t, e) {
-	return e = B(e), function(n) {
-		return n.addEventListener(v, t, e), n[x] ? n : n.isConnected ? (n.dispatchEvent(new Event(v)), n) : (L(e.signal, () => _.offConnected(n, t)) && _.onConnected(n, t), n);
+var lifeOptions = (obj) => oAssign({}, typeof obj === "object" ? obj : null, { once: true });
+on.connected = function(listener, options) {
+	options = lifeOptions(options);
+	return function registerElement(element) {
+		element.addEventListener(evc, listener, options);
+		if (element[keyLTE]) return element;
+		if (element.isConnected) return element.dispatchEvent(new Event(evc)), element;
+		const c = onAbort(options.signal, () => c_ch_o.offConnected(element, listener));
+		if (c) c_ch_o.onConnected(element, listener);
+		return element;
 	};
 };
-D.disconnected = function(t, e) {
-	return e = B(e), function(n) {
-		return n.addEventListener(w, t, e), n[x] || L(e.signal, () => _.offDisconnected(n, t)) && _.onDisconnected(n, t), n;
+on.disconnected = function(listener, options) {
+	options = lifeOptions(options);
+	return function registerElement(element) {
+		element.addEventListener(evd, listener, options);
+		if (element[keyLTE]) return element;
+		const c = onAbort(options.signal, () => c_ch_o.offDisconnected(element, listener));
+		if (c) c_ch_o.onDisconnected(element, listener);
+		return element;
 	};
 };
-var W = /* @__PURE__ */ new WeakMap();
-D.disconnectedAsAbort = function(t) {
-	if (W.has(t)) return W.get(t);
-	let e = new AbortController();
-	return W.set(t, e), t(D.disconnected(() => e.abort())), e;
+var store_abort = /* @__PURE__ */ new WeakMap();
+on.disconnectedAsAbort = function(host) {
+	if (store_abort.has(host)) return store_abort.get(host);
+	const a = new AbortController();
+	store_abort.set(host, a);
+	host(on.disconnected(() => a.abort()));
+	return a;
 };
-var ot = /* @__PURE__ */ new WeakSet();
-D.attributeChanged = function(t, e) {
-	return typeof e != "object" && (e = {}), function(n) {
-		if (n.addEventListener(y, t, e), n[x] || ot.has(n) || !a.M) return n;
-		let o = new a.M(function(d) {
-			for (let { attributeName: f, target: p } of d)
-				p.dispatchEvent(
-					new CustomEvent(y, { detail: [f, p.getAttribute(f)] })
+var els_attribute_store = /* @__PURE__ */ new WeakSet();
+on.attributeChanged = function(listener, options) {
+	if (typeof options !== "object")
+		options = {};
+	return function registerElement(element) {
+		element.addEventListener(eva, listener, options);
+		if (element[keyLTE] || els_attribute_store.has(element))
+			return element;
+		if (!enviroment.M) return element;
+		const observer = new enviroment.M(function(mutations) {
+			for (const { attributeName, target } of mutations)
+				target.dispatchEvent(
+					new CustomEvent(eva, { detail: [attributeName, target.getAttribute(attributeName)] })
 				);
 		});
-		return L(e.signal, () => o.disconnect()) && o.observe(n, { attributes: !0 }), n;
+		const c = onAbort(options.signal, () => observer.disconnect());
+		if (c) observer.observe(element, { attributes: true });
+		return element;
 	};
 };
 export {
-	R as assign,
-	U as assignAttribute,
-	J as chainableAppend,
-	K as classListDeclarative,
-	P as createElement,
-	pt as createElementNS,
-	wt as customElementRender,
-	nt as customElementWithDDE,
-	yt as dispatchEvent,
-	P as el,
-	pt as elNS,
-	Q as elementAttribute,
-	nt as lifecyclesToEvents,
-	rt as observedAttributes,
-	D as on,
-	dt as queue,
-	Z as registerReactivity,
-	O as scope,
-	lt as simulateSlots
+	assign,
+	assignAttribute,
+	chainableAppend,
+	classListDeclarative,
+	createElement,
+	createElementNS,
+	customElementRender,
+	lifecyclesToEvents as customElementWithDDE,
+	dispatchEvent,
+	createElement as el,
+	createElementNS as elNS,
+	elementAttribute,
+	lifecyclesToEvents,
+	observedAttributes2 as observedAttributes,
+	on,
+	queue,
+	registerReactivity,
+	scope,
+	simulateSlots
 };

docs/components/code.html.js

@@ -1,28 +1,179 @@
 import { registerClientFile, styles } from "../ssr.js";
 const host= "."+code.name;
 styles.css`
-${host}{
-	--shiki-color-text: #e9eded;
-	--shiki-color-background: #212121;
+/* Code block styling */
+${host} {
+	/* Theme for dark mode - matches Flems/CodeMirror dark theme */
+	--shiki-color-text: #f8f8f2;
+	--shiki-color-background: var(--code-bg);
 	--shiki-token-constant: #82b1ff;
 	--shiki-token-string: #c3e88d;
 	--shiki-token-comment: #546e7a;
 	--shiki-token-keyword: #c792ea;
-	--shiki-token-parameter: #AA0000;
+	--shiki-token-parameter: #fd971f;
 	--shiki-token-function: #80cbae;
 	--shiki-token-string-expression: #c3e88d;
-	--shiki-token-punctuation: var(--code);
-	--shiki-token-link: #EE0000;
+	--shiki-token-punctuation: #89ddff;
+	--shiki-token-link: #82aaff;
+	--shiki-token-variable: #f8f8f2;
+	--shiki-token-number: #f78c6c;
+	--shiki-token-boolean: #82b1ff;
+	--shiki-token-tag: #f07178;
+	--shiki-token-attribute: #ffcb6b;
+	--shiki-token-property: #82b1ff;
+	--shiki-token-operator: #89ddff;
+	--shiki-token-regex: #c3e88d;
+	--shiki-token-class: #ffcb6b;
+
+	/* Basic styling */
 	white-space: pre;
-	tab-size: 2; /* TODO: allow custom tab size?! */
-	overflow: scroll;
+	tab-size: 2;
+	overflow: auto;
+	border-radius: var(--border-radius);
+	font-family: var(--font-mono);
+	font-size: 0.8rem;
+	line-height: 1.5;
+	position: relative;
+	margin-block: 1rem;
+	width: 100%;
 }
-${host}[data-js=todo]{
+
+/* Light mode overrides to match GitHub-like theme */
+@media (prefers-color-scheme: light) {
+	${host} {
+		--shiki-color-text: #24292e;
+		--shiki-color-background: var(--code-bg);
+		--shiki-token-constant: #005cc5;
+		--shiki-token-string: #22863a;
+		--shiki-token-comment: #6a737d;
+		--shiki-token-keyword: #d73a49;
+		--shiki-token-parameter: #e36209;
+		--shiki-token-function: #6f42c1;
+		--shiki-token-string-expression: #22863a;
+		--shiki-token-punctuation: #24292e;
+		--shiki-token-link: #0366d6;
+		--shiki-token-variable: #24292e;
+		--shiki-token-number: #005cc5;
+		--shiki-token-boolean: #005cc5;
+		--shiki-token-tag: #22863a;
+		--shiki-token-attribute: #005cc5;
+		--shiki-token-property: #005cc5;
+		--shiki-token-operator: #d73a49;
+		--shiki-token-regex: #032f62;
+		--shiki-token-class: #6f42c1;
+	}
+}
+
+/* Support for theme toggles */
+html[data-theme="light"] ${host} {
+	--shiki-color-text: #24292e;
+	--shiki-color-background: var(--code-bg);
+	--shiki-token-constant: #005cc5;
+	--shiki-token-string: #22863a;
+	--shiki-token-comment: #6a737d;
+	--shiki-token-keyword: #d73a49;
+	--shiki-token-parameter: #e36209;
+	--shiki-token-function: #6f42c1;
+	--shiki-token-string-expression: #22863a;
+	--shiki-token-punctuation: #24292e;
+	--shiki-token-link: #0366d6;
+	--shiki-token-variable: #24292e;
+	--shiki-token-number: #005cc5;
+	--shiki-token-boolean: #005cc5;
+	--shiki-token-tag: #22863a;
+	--shiki-token-attribute: #005cc5;
+	--shiki-token-property: #005cc5;
+	--shiki-token-operator: #d73a49;
+	--shiki-token-regex: #032f62;
+	--shiki-token-class: #6f42c1;
+}
+
+html[data-theme="dark"] ${host} {
+	--shiki-color-text: #f8f8f2;
+	--shiki-color-background: var(--code-bg);
+	--shiki-token-constant: #82b1ff;
+	--shiki-token-string: #c3e88d;
+	--shiki-token-comment: #546e7a;
+	--shiki-token-keyword: #c792ea;
+	--shiki-token-parameter: #fd971f;
+	--shiki-token-function: #80cbae;
+	--shiki-token-string-expression: #c3e88d;
+	--shiki-token-punctuation: #89ddff;
+	--shiki-token-link: #82aaff;
+	--shiki-token-variable: #f8f8f2;
+	--shiki-token-number: #f78c6c;
+	--shiki-token-boolean: #82b1ff;
+	--shiki-token-tag: #f07178;
+	--shiki-token-attribute: #ffcb6b;
+	--shiki-token-property: #82b1ff;
+	--shiki-token-operator: #89ddff;
+	--shiki-token-regex: #c3e88d;
+	--shiki-token-class: #ffcb6b;
+}
+
+/* Code block with syntax highlighting waiting for JS */
+${host}[data-js=todo] {
 	border: 1px solid var(--border);
-	border-radius: var(--standard-border-radius);
-	margin-bottom: 1rem;
-	margin-top: 18.4px; /* to fix shift when → dataJS=done */
-	padding: 1rem 1.4rem;
+	border-radius: var(--border-radius);
+	padding: 1rem;
+	background-color: var(--code-bg);
+	position: relative;
+}
+
+/* Add a subtle loading indicator */
+${host}[data-js=todo]::before {
+	content: "Loading syntax highlighting...";
+	position: absolute;
+	top: 0.5rem;
+	right: 0.5rem;
+	font-size: 0.75rem;
+	color: var(--text-light);
+	background-color: var(--bg);
+	padding: 0.25rem 0.5rem;
+	border-radius: var(--border-radius);
+	opacity: 0.7;
+}
+
+/* All code blocks should have consistent font and sizing */
+${host} code {
+	font-family: var(--font-mono);
+	font-size: inherit;
+	line-height: 1.5;
+	padding: 0;
+}
+${host} pre {
+	margin-block: 0;
+	font-size: inherit;
+}
+
+/* Ensure line numbers (if added) are styled appropriately */
+${host} .line-number {
+	user-select: none;
+	opacity: 0.5;
+	margin-right: 1rem;
+	min-width: 1.5rem;
+	display: inline-block;
+	text-align: right;
+}
+
+/* If there's a copy button, style it */
+${host} .copy-button {
+	position: absolute;
+	top: 0.5rem;
+	right: 0.5rem;
+	background-color: var(--bg);
+	color: var(--text);
+	border: 1px solid var(--border);
+	border-radius: var(--border-radius);
+	padding: 0.25rem 0.5rem;
+	font-size: 0.75rem;
+	cursor: pointer;
+	opacity: 0;
+	transition: opacity 0.2s ease;
+}
+
+${host}:hover .copy-button {
+	opacity: 1;
 }
 `;
 import { el } from "deka-dom-el";
@@ -52,12 +203,46 @@ let is_registered= {};
 function registerClientPart(page_id){
 	if(is_registered[page_id]) return;
 
+	// Add Shiki with a more reliable loading method
 	document.head.append(
-		el("script", { src: "https://cdn.jsdelivr.net/npm/shiki@0.9", defer: true }),
+		// Use a newer version of Shiki with better performance
+		el("script", { src: "https://cdn.jsdelivr.net/npm/shiki@0.14.3/dist/index.unpkg.iife.js", defer: true }),
+		// Make sure we can match Flems styling in dark/light mode
+		el("style", `
+			/* Ensure CodeMirror and Shiki use the same font */
+			.CodeMirror *, .shiki * {
+				font-family: var(--font-mono) !important;
+			}
+
+			/* Style Shiki's output to match our theme */
+			.shiki {
+				background-color: var(--shiki-color-background) !important;
+				color: var(--shiki-color-text) !important;
+				padding: 1rem;
+				border-radius: var(--border-radius);
+				tab-size: 2;
+			}
+
+			/* Ensure Shiki code tokens use our CSS variables */
+			.shiki .keyword { color: var(--shiki-token-keyword) !important; }
+			.shiki .constant { color: var(--shiki-token-constant) !important; }
+			.shiki .string { color: var(--shiki-token-string) !important; }
+			.shiki .comment { color: var(--shiki-token-comment) !important; }
+			.shiki .function { color: var(--shiki-token-function) !important; }
+			.shiki .operator, .shiki .punctuation { color: var(--shiki-token-punctuation) !important; }
+			.shiki .parameter { color: var(--shiki-token-parameter) !important; }
+			.shiki .variable { color: var(--shiki-token-variable) !important; }
+			.shiki .property { color: var(--shiki-token-property) !important; }
+		`),
 	);
+
+	// Register our highlighting script to run after Shiki loads
+	const scriptElement = el("script", { type: "module" });
+
 	registerClientFile(
 		new URL("./code.js.js", import.meta.url),
-		el("script", { type: "module" })
+		scriptElement
 	);
+
 	is_registered[page_id]= true;
 }

docs/components/code.js.js

@@ -1,12 +1,61 @@
-const highlighter= await globalThis.shiki.getHighlighter({
-	theme: "css-variables",
-	langs: ["js", "ts", "css", "html", "shell"],
-});
-const codeBlocks= document.querySelectorAll('code[class*="language-"]');
+try {
+	// Initialize Shiki with our custom theme
+	const highlighter = await globalThis.shiki.getHighlighter({
+		theme: "css-variables",
+		langs: ["javascript", "typescript", "css", "html", "shell"],
+	});
 
-codeBlocks.forEach((block)=> {
-	const lang= block.className.replace("language-", "");
-	block.parentElement.dataset.js= "done";
-	const html= highlighter.codeToHtml(block.textContent, { lang });
-	block.innerHTML= html;
-});
+	// Find all code blocks that need highlighting
+	const codeBlocks = document.querySelectorAll('div[data-js="todo"] code[class*="language-"]');
+
+	// Process each code block
+	codeBlocks.forEach((block) => {
+		try {
+			// Get the language from the class
+			const langClass = block.className.match(/language-(\w+)/);
+
+			// Map the language to Shiki format
+			let lang = langClass ? langClass[1] : 'javascript';
+			if (lang === 'js') lang = 'javascript';
+			if (lang === 'ts') lang = 'typescript';
+
+			// Mark the container as processed
+			block.parentElement.dataset.js = "done";
+
+			// Highlight the code
+			const code = block.textContent;
+			const html = highlighter.codeToHtml(code, { lang });
+
+			// Insert the highlighted HTML
+			block.innerHTML = html;
+
+			// Add copy button functionality
+			const copyBtn = document.createElement('button');
+			copyBtn.className = 'copy-button';
+			copyBtn.textContent = 'Copy';
+			copyBtn.setAttribute('aria-label', 'Copy code to clipboard');
+			copyBtn.addEventListener('click', () => {
+				navigator.clipboard.writeText(code).then(() => {
+					copyBtn.textContent = 'Copied!';
+					setTimeout(() => {
+						copyBtn.textContent = 'Copy';
+					}, 2000);
+				});
+			});
+
+			// Add the copy button to the code block container
+			block.parentElement.appendChild(copyBtn);
+		} catch (err) {
+			console.error('Error highlighting code block:', err);
+			// Make sure we don't leave the block in a pending state
+			block.parentElement.dataset.js = "error";
+		}
+	});
+} catch (err) {
+	console.error('Failed to initialize Shiki:', err);
+
+	// Fallback: at least mark blocks as processed so they don't show loading indicator
+	document.querySelectorAll('div[data-js="todo"]').forEach(block => {
+		block.dataset.js = "error";
+	});
+}

docs/components/example.html.js

@@ -1,16 +1,103 @@
 import { styles } from "../ssr.js";
 const host= "."+example.name;
 styles.css`
-${host}{
+${host} {
 	grid-column: full-main;
 	width: 100%;
 	max-width: calc(9/5 * var(--body-max-width));
 	height: calc(3/5 * var(--body-max-width));
-	margin-inline: auto;
+	margin: 2rem auto;
+	border-radius: var(--border-radius);
+	box-shadow: var(--shadow);
+	border: 1px solid var(--border);
 }
+${host} .runtime {
+	background-color: whitesmoke;
+}
+
+/* CodeMirror styling to match our theme */
+.CodeMirror {
+	height: 100% !important;
+	font-family: var(--font-mono) !important;
+	font-size: 0.8rem !important;
+	line-height: 1.5 !important;
+}
+
+/* Dark mode styles for CodeMirror */
 .CodeMirror, .CodeMirror-gutters {
-	background: #212121 !important;
-	border: 1px solid white;
+	background: var(--code-bg) !important;
+	border: 1px solid var(--border) !important;
+	color: var(--text) !important;
+}
+
+/* Light mode adjustments for CodeMirror - using CSS variables */
+@media (prefers-color-scheme: light) {
+	/* Core syntax elements */
+	.cm-s-material .cm-keyword { color: var(--shiki-token-keyword, #d73a49) !important; }
+	.cm-s-material .cm-atom { color: var(--shiki-token-constant, #005cc5) !important; }
+	.cm-s-material .cm-number { color: var(--shiki-token-number, #005cc5) !important; }
+	.cm-s-material .cm-def { color: var(--shiki-token-function, #6f42c1) !important; }
+	.cm-s-material .cm-variable { color: var(--shiki-token-variable, #24292e) !important; }
+	.cm-s-material .cm-variable-2 { color: var(--shiki-token-variable, #24292e) !important; }
+	.cm-s-material .cm-variable-3 { color: var(--shiki-token-variable, #24292e) !important; }
+	.cm-s-material .cm-property { color: var(--shiki-token-property, #005cc5) !important; }
+	.cm-s-material .cm-operator { color: var(--shiki-token-operator, #d73a49) !important; }
+	.cm-s-material .cm-comment { color: var(--shiki-token-comment, #6a737d) !important; }
+	.cm-s-material .cm-string { color: var(--shiki-token-string, #22863a) !important; }
+	.cm-s-material .cm-string-2 { color: var(--shiki-token-string, #22863a) !important; }
+	.cm-s-material .cm-tag { color: var(--shiki-token-tag, #22863a) !important; }
+	.cm-s-material .cm-attribute { color: var(--shiki-token-attribute, #005cc5) !important; }
+	.cm-s-material .cm-bracket { color: var(--shiki-token-punctuation, #24292e) !important; }
+	.cm-s-material .cm-punctuation { color: var(--shiki-token-punctuation, #24292e) !important; }
+	.cm-s-material .cm-link { color: var(--shiki-token-link, #0366d6) !important; }
+	.cm-s-material .cm-error { color: #f44336 !important; }
+}
+
+/* Handle theme toggle */
+html[data-theme="light"] .CodeMirror {
+	background: #f5f7fa !important;
+}
+
+html[data-theme="light"] .CodeMirror-gutters {
+	background: #f5f7fa !important;
+	border-right: 1px solid #e5e7eb !important;
+}
+
+/* Also apply the same styles to CodeMirror with data-theme */
+html[data-theme="light"] .cm-s-material .cm-keyword { color: var(--shiki-token-keyword, #d73a49) !important; }
+html[data-theme="light"] .cm-s-material .cm-atom { color: var(--shiki-token-constant, #005cc5) !important; }
+html[data-theme="light"] .cm-s-material .cm-number { color: var(--shiki-token-number, #005cc5) !important; }
+html[data-theme="light"] .cm-s-material .cm-def { color: var(--shiki-token-function, #6f42c1) !important; }
+html[data-theme="light"] .cm-s-material .cm-variable { color: var(--shiki-token-variable, #24292e) !important; }
+html[data-theme="light"] .cm-s-material .cm-variable-2 { color: var(--shiki-token-variable, #24292e) !important; }
+html[data-theme="light"] .cm-s-material .cm-variable-3 { color: var(--shiki-token-variable, #24292e) !important; }
+html[data-theme="light"] .cm-s-material .cm-property { color: var(--shiki-token-property, #005cc5) !important; }
+html[data-theme="light"] .cm-s-material .cm-operator { color: var(--shiki-token-operator, #d73a49) !important; }
+html[data-theme="light"] .cm-s-material .cm-comment { color: var(--shiki-token-comment, #6a737d) !important; }
+html[data-theme="light"] .cm-s-material .cm-string { color: var(--shiki-token-string, #22863a) !important; }
+html[data-theme="light"] .cm-s-material .cm-string-2 { color: var(--shiki-token-string, #22863a) !important; }
+html[data-theme="light"] .cm-s-material .cm-tag { color: var(--shiki-token-tag, #22863a) !important; }
+html[data-theme="light"] .cm-s-material .cm-attribute { color: var(--shiki-token-attribute, #005cc5) !important; }
+html[data-theme="light"] .cm-s-material .cm-bracket { color: var(--shiki-token-punctuation, #24292e) !important; }
+html[data-theme="light"] .cm-s-material .cm-punctuation { color: var(--shiki-token-punctuation, #24292e) !important; }
+html[data-theme="light"] .cm-s-material .cm-link { color: var(--shiki-token-link, #0366d6) !important; }
+html[data-theme="light"] .cm-s-material .cm-error { color: #f44336 !important; }
+
+/* Mobile adjustments */
+@media (max-width: 767px) {
+	${host} {
+		height: 50vh;
+		max-width: 100%;
+	}
+	${host} main {
+		flex-grow: 1;
+		display: flex;
+		flex-direction: column;
+	}
+	${host} main > * {
+		width: 100%;
+		max-width: 100% !important;
+	}
 }
 `;
 

docs/components/examples/customElement/observedAttributes.js

@@ -26,7 +26,7 @@ function ddeComponent({ attr }){
 		on.connected(e=> console.log(( /** @type {HTMLParagraphElement} */ (e.target)).outerHTML)),
 	);
 	return el().append(
-		el("p", S(()=> `Hello from Custom Element with attribute '${attr()}'`))
+		el("p", S(()=> `Hello from Custom Element with attribute '${attr.get()}'`))
 	);
 }
 customElementWithDDE(HTMLCustomElement);

docs/components/examples/introducing/helloWorld.js

@@ -4,11 +4,11 @@ const threePS= ({ emoji= "🚀" })=> {
 	const clicks= S(0); // A
 	return el().append(
 		el("p", S(()=>
-			"Hello World "+emoji.repeat(clicks()) // B
+			"Hello World "+emoji.repeat(clicks.get()) // B
 		)),
 		el("button", {
 			type: "button",
-			onclick: ()=> clicks(clicks()+1), // C
+			onclick: ()=> clicks.set(clicks.get()+1), // C
 			textContent: "Fire",
 		})
 	);

docs/components/examples/signals/actions-demo.js

@@ -15,4 +15,4 @@ setTimeout(
 	clearInterval,
 	10*interval,
 	setInterval(oninterval, interval)
-);
+);

docs/components/examples/signals/actions-todos.js

@@ -22,9 +22,9 @@ const onsubmit= on("submit", function(event){
 			S.action(todos, "push", data.get("todo"));
 			break;
 		case "E"/*dit*/: {
-			const last= todos().at(-1);
+			const last= todos.get().at(-1);
 			if(!last) break;
-			last(data.get("todo"));
+			last.set(data.get("todo"));
 			break;
 		}
 		case "R"/*emove*/:

docs/components/examples/signals/computations-abort.js

@@ -1,16 +1,16 @@
 import { S } from "deka-dom-el/signals";
 const signal= S(0);
 // computation pattern
-const double= S(()=> 2*signal());
+const double= S(()=> 2*signal.get());
 
 const ac= new AbortController();
 S.on(signal, v=> console.log("signal", v), { signal: ac.signal });
 S.on(double, v=> console.log("double", v), { signal: ac.signal });
 
-signal(signal()+1);
+signal.set(signal.get()+1);
 const interval= 5 * 1000;
-const id= setInterval(()=> signal(signal()+1), interval);
+const id= setInterval(()=> signal.set(signal.get()+1), interval);
 ac.signal.addEventListener("abort",
 	()=> setTimeout(()=> clearInterval(id), 2*interval));
 
-setTimeout(()=> ac.abort(), 3*interval)
+setTimeout(()=> ac.abort(), 3*interval)

docs/components/examples/signals/dom-attrs.js

@@ -3,8 +3,8 @@ const count= S(0);
 
 import { el } from "deka-dom-el";
 document.body.append(
-	el("p", S(()=> "Currently: "+count())),
-	el("p", { classList: { red: S(()=> count()%2 === 0) }, dataset: { count }, textContent: "Attributes example" }),
+	el("p", S(()=> "Currently: "+count.get())),
+	el("p", { classList: { red: S(()=> count.get()%2 === 0) }, dataset: { count }, textContent: "Attributes example" }),
 );
 document.head.append(
 	el("style", ".red { color: red; }")
@@ -12,4 +12,4 @@ document.head.append(
 
 const interval= 5 * 1000;
 setTimeout(clearInterval, 10*interval,
-	setInterval(()=> count(count()+1), interval));
+	setInterval(()=> count.set(count.get()+1), interval));

docs/components/examples/signals/dom-el.js

@@ -2,7 +2,7 @@ import { S } from "deka-dom-el/signals";
 const count= S(0, {
 	add(){ this.value= this.value + Math.round(Math.random()*10); }
 });
-const numbers= S([ count() ], {
+const numbers= S([ count.get() ], {
 	push(next){ this.value.push(next); }
 });
 
@@ -22,5 +22,5 @@ document.body.append(
 const interval= 5*1000;
 setTimeout(clearInterval, 10*interval, setInterval(function(){
 	S.action(count, "add");
-	S.action(numbers, "push", count());
-}, interval));
+	S.action(numbers, "push", count.get());
+}, interval));

docs/components/examples/signals/signals.js

@@ -4,9 +4,9 @@ const signal= S(0);
 // β — just reacts on signal changes
 S.on(signal, console.log);
 // γ — just updates the value
-const update= ()=> signal(signal()+1);
+const update= ()=> signal.set(signal.get()+1);
 
 update();
 const interval= 5*1000;
 setTimeout(clearInterval, 10*interval,
-	setInterval(update, interval));
+	setInterval(update, interval));

docs/components/pageUtils.html.js

@@ -1,18 +1,67 @@
 import { pages, styles } from "../ssr.js";
 const host= "."+prevNext.name;
 styles.css`
-${host}{
-	display: grid;
-	grid-template-columns: 1fr 2fr 1fr;
-	margin-top: 1rem;
+/* Previous/Next navigation */
+${host} {
+	display: flex;
+	justify-content: space-between;
+	margin-top: 3rem;
+	padding-top: 1.5rem;
 	border-top: 1px solid var(--border);
+	gap: 1rem;
+	width: 100%;
 }
-${host} [rel=prev]{
-	grid-column: 1;
+
+${host} a {
+	display: flex;
+	align-items: center;
+	padding: 0.5rem 0.75rem;
+	border-radius: var(--border-radius);
+	background-color: var(--primary-dark); /* Darker background for better contrast */
+	color: white;
+	font-weight: 600; /* Bolder text for better readability */
+	text-decoration: none;
+	transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
+	max-width: 45%;
+	box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15); /* Subtle shadow for better visibility */
 }
-${host} [rel=next]{
-	grid-column: 3;
-	text-align: right;
+
+${host} a:hover {
+	background-color: var(--primary);
+	transform: translateY(-2px);
+	text-decoration: none;
+	box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2); /* Enhanced shadow on hover */
+}
+
+${host} [rel=prev] {
+	margin-right: auto;
+}
+
+${host} [rel=next] {
+	margin-left: auto;
+}
+
+${host} [rel=prev]::before {
+	content: "←";
+	margin-right: 0.75rem;
+	font-size: 1.2em;
+}
+
+${host} [rel=next]::after {
+	content: "→";
+	margin-left: 0.75rem;
+	font-size: 1.2em;
+}
+
+/* If there's no previous/next, ensure the spacing still works */
+${host} a:only-child {
+	margin-left: auto;
+}
+
+@media (max-width: 640px) {
+	${host} a {
+		font-size: 0.9rem;
+	}
 }
 `;
 import { el } from "../../index.js";
@@ -22,21 +71,28 @@ import { el } from "../../index.js";
  * @param {string} [attrs.id]
  * */
 export function h3({ textContent, id }){
-	if(!id) id= "h-"+textContent.toLowerCase().replaceAll(/\s/g, "-").replaceAll(/[^a-z-]/g, "");
-	return el("h3", { id }).append(
-		el("a", { textContent: "#", href: "#"+id, tabIndex: -1 }),
-		" ", textContent
-	);
+		if(!id) id= "h-"+textContent.toLowerCase().replaceAll(/\s/g, "-").replaceAll(/[^a-z-]/g, "");
+		return el("h3", { id }).append(
+				el("a", {
+						className: "heading-anchor",
+						href: "#"+id,
+						textContent: "#",
+						title: `Link to this section: ${textContent}`,
+						"aria-label": `Link to section ${textContent}`
+				}),
+				" ",
+				textContent,
+		);
 }
 /**
  * @param {import("../types.d.ts").Info} page
  * */
 export function prevNext(page){
-	const page_index= pages.indexOf(page);
-	return el("div", { className: prevNext.name }).append(
-		el(pageLink, { rel: "prev", page: pages[page_index-1] }),
-		el(pageLink, { rel: "next", page: pages[page_index+1] })
-	);
+		const page_index= pages.indexOf(page);
+		return el("div", { className: prevNext.name }).append(
+				el(pageLink, { rel: "prev", page: pages[page_index-1] }),
+				el(pageLink, { rel: "next", page: pages[page_index+1] })
+		);
 }
 /**
  * @param {Object} attrs
@@ -44,11 +100,22 @@ export function prevNext(page){
  * @param {import("../types.d.ts").Info} [attrs.page]
  * */
 function pageLink({ rel, page }){
-	if(!page) return el();
-	let { href, title, description }= page;
-	return el("a", { rel, href, title: description }).append(
-		rel==="next" ?"(next) " : "",
-		title,
-		rel==="prev" ? " (previous)" : "",
-	);
+		if(!page) return el();
+		let { href, title, description }= page;
+
+		// Find the page index to show numbering
+		const pageIndex = pages.findIndex(p => p === page);
+		const pageNumber = pageIndex + 1;
+
+		const linkTitle = rel === "prev"
+				? `Previous: ${pageNumber}. ${title}`
+				: `Next: ${pageNumber}. ${title}`;
+
+		return el("a", {
+				rel,
+				href,
+				title: description || linkTitle
+		}).append(
+				title
+		);
 }

docs/global.css.js

@@ -1,124 +1,426 @@
 import { styles } from "./ssr.js";
 styles.css`
-@import url(https://cdn.simplecss.org/simple.min.css);
-:root{
-	--body-max-width: 45rem;
-	--marked: #fb3779;
-	--code: #0d47a1;
-	--accent: #d81b60;
+:root {
+	--primary: #b71c1c;
+	--primary-light: #f05545;
+	--primary-dark: #7f0000;
+	--primary-rgb: 183, 28, 28;
+	--secondary: #700037;
+	--secondary-light: #ae1357;
+	--secondary-dark: #4a0027;
+	--secondary-rgb: 112, 0, 55;
+
+	--font-main: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
+	--font-mono: 'Fira Code', 'JetBrains Mono', 'SF Mono', SFMono-Regular, Consolas, 'Liberation Mono', Menlo, monospace;
+
+	--body-max-width: 40rem;
+	--sidebar-width: 20rem;
+	--header-height: 4rem;
+	--border-radius: 0.375rem;
+
+	--bg: #ffffff;
+	--bg-sidebar: #fff5f5;
+	--text: #1a1313;
+	--text-light: #555050;
+	--code-bg: #f9f2f2;
+	--code-text: #9a0000;
+	--border: #d8c0c0;
+	--selection: rgba(183, 28, 28, 0.15);
+	--marked: #b71c1c;
+	--accent: var(--secondary);
+	--shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
+
+	--link-color: #9a0000;
+	--link-hover: #7f0000;
+	--button-text: #ffffff;
 }
-@media (prefers-color-scheme:dark) {
+
+@media (prefers-color-scheme: dark) {
 	:root {
-		--accent: #f06292;
-		--code: #62c1f0;
+		--bg: #121212;
+		--bg-sidebar: #1a1212;
+		--text: #ffffff;
+		--text-light: #cccccc;
+		--code-bg: #2c2020;
+		--code-text: #ff9e80;
+		--border: #4d3939;
+		--selection: rgba(255, 99, 71, 0.25);
+		--primary: #b74141;
+		--primary-light: #ff867f;
+		--primary-dark: #c62828;
+		--secondary: #f02b47;
+		--secondary-light: #ff6090;
+		--secondary-dark: #b0003a;
+		--accent: var(--secondary);
+
+		--link-color: #ff5252;
+		--link-hover: #ff867f;
+		--button-text: #ffffff;
+
+		--nav-current-bg: #aa2222;
+		--nav-current-text: #ffffff;
+
+		--primary-rgb: 255, 82, 82;
+		--secondary-rgb: 233, 30, 99;
 	}
 }
-body {
-	grid-template-columns: 100%;
-	grid-template-areas: "header" "sidebar" "content";
-}
-@media (min-width:768px) {
-	body{
-		grid-template-rows: auto auto;
-		grid-template-columns: calc(10 * var(--body-max-width) / 27) auto;
-		grid-template-areas:
-			"header header"
-			"sidebar content"
-	}
-}
-body > *{
-	grid-column: unset;
-}
-body > header{
-	grid-area: header;
-	padding: 0;
-}
-body > nav{
-	grid-area: sidebar;
-	background-color: var(--accent-bg);
-	display: flex;
-	flex-flow: column nowrap;
-}
-body > nav {
-	font-size: 1rem;
-	line-height: 2;
-	padding: 1rem 0 0 0;
-}
-body > nav ol,
-body > nav ul {
-	align-content: space-around;
-	align-items: center;
-	display: flex;
-	flex-direction: row;
-	flex-wrap: wrap;
-	justify-content: center;
-	list-style-type: none;
+
+/* Base styling */
+* {
+	box-sizing: border-box;
 	margin: 0;
 	padding: 0;
 }
-body > nav ol li,
-body > nav ul li {
-	display:inline-block
+
+html {
+	scroll-behavior: smooth;
 }
-body > nav a,
-body > nav a:visited {
-	margin: 0 .5rem 1rem .5rem;
-	border: 1px solid currentColor;
-	border-radius: var(--standard-border-radius);
-	color: var(--text-light);
-	display: inline-block;
-	padding: .1rem 1rem;
+
+/* Accessibility improvements */
+:focus {
+	outline: 3px solid rgba(63, 81, 181, 0.5);
+	outline-offset: 2px;
+}
+
+:focus:not(:focus-visible) {
+	outline: none;
+}
+
+:focus-visible {
+	outline: 3px solid rgba(63, 81, 181, 0.5);
+	outline-offset: 2px;
+}
+
+/* Ensure reduced motion preferences are respected */
+@media (prefers-reduced-motion: reduce) {
+	html {
+		scroll-behavior: auto;
+	}
+
+	*, *::before, *::after {
+		animation-duration: 0.01ms !important;
+		animation-iteration-count: 1 !important;
+		transition-duration: 0.01ms !important;
+	}
+}
+
+/* Skip link for better keyboard navigation */
+.skip-link {
+	position: absolute;
+	top: 0;
+	left: 0;
+	transform: translateX(-100%);
+	z-index: 9999;
+	background-color: var(--primary);
+	color: white;
+	padding: 0.5rem 1rem;
 	text-decoration: none;
-	cursor: pointer;
-	transition: all .15s;
+	transition: transform 0.3s ease-in-out;
 }
-body > nav a.current,
-body > nav a[aria-current=page] {
+
+.skip-link:focus {
+	transform: translateX(0);
+}
+
+body {
+	font-family: var(--font-main);
 	background-color: var(--bg);
 	color: var(--text);
+	line-height: 1.6;
+	font-size: 1rem;
+	display: grid;
+	grid-template-columns: 100%;
+	grid-template-areas:
+		"header"
+		"sidebar"
+		"content";
+	min-height: 100vh;
 }
-body > nav a:hover{
-	background-color: var(--bg);
-	color: var(--accent);
+
+::selection {
+	background-color: var(--selection);
 }
-@media only screen and (max-width:720px) {
-	body > nav{
-		flex-flow: row wrap;
-		padding-block: .5rem;
-	}
-	body > nav a {
-		border:none;
-		text-decoration:underline;
-		margin-block: .1rem;
-		padding-block:.1rem;
-		line-height: 1rem;
-		font-size: .9rem;
+
+/* Typography */
+h1, h2, h3, h4, h5, h6 {
+	margin-bottom: 1rem;
+	margin-top: 2rem;
+	font-weight: 700;
+	line-height: 1.25;
+	color: var(--text);
+}
+
+h1 {
+	font-size: 2.25rem;
+	margin-top: 0;
+	color: var(--primary-dark);
+}
+h1 > a {
+	font-weight: unset;
+	color: unset;
+}
+
+h2 {
+	font-size: 1.5rem;
+	border-bottom: 2px solid var(--border);
+	padding-bottom: 0.5rem;
+	color: var(--primary);
+}
+
+h3 {
+	font-size: 1.25rem;
+	color: var(--secondary);
+}
+
+p {
+	margin-bottom: 1.5rem;
+}
+
+a {
+	color: var(--link-color, var(--primary));
+	transition: color 0.2s ease;
+	font-weight: 500;
+	text-underline-offset: 3px;
+	transition: color 0.2s ease, text-underline-offset 0.2s ease;
+}
+a:visited {
+	--link-color: var(--secondary, #700037);
+}
+a:hover {
+	--link-color: var(--link-hover, var(--primary-light));
+	text-underline-offset: 5px;
+}
+
+code, pre {
+	font-family: var(--font-mono);
+	font-size: 0.9em;
+	border-radius: var(--border-radius);
+}
+
+code {
+	background-color: var(--code-bg);
+	color: var(--code-text);
+	padding: 0.2em 0.4em;
+}
+
+pre {
+	background-color: var(--code-bg);
+	padding: 1rem;
+	overflow-x: auto;
+	margin-bottom: 1.5rem;
+	border: 1px solid var(--border);
+}
+
+pre code {
+	background-color: transparent;
+	padding: 0;
+}
+
+/* Layout */
+@media (min-width: 768px) {
+	body {
+		grid-template-rows: var(--header-height) 1fr;
+		grid-template-columns: var(--sidebar-width) 1fr;
+		grid-template-areas:
+			"header header"
+			"sidebar content";
 	}
 }
-main{
+
+/* Main content */
+body > main {
 	grid-area: content;
+	padding: 2rem;
+	max-width: 100%;
+	overflow-x: hidden;
 	display: grid;
 	grid-template-columns:
 	[full-main-start] 1fr
 	[main-start] min(var(--body-max-width), 90%) [main-end]
 	1fr [full-main-end];
 }
-main > *, main slot > *{
+
+body > main > *, body > main slot > * {
+	width: 100%;
+	max-width: 100%;
+	margin-inline: auto;
 	grid-column: main;
 }
+
+/* Page title with ID anchor for skip link */
+body > main .page-title {
+	margin-top: 0;
+	border-bottom: 1px solid var(--border);
+	padding-bottom: 0.75rem;
+	margin-bottom: 1.5rem;
+	color: var(--primary);
+	position: relative;
+}
+
+/* Section headings with better visual hierarchy */
+body > main h2, body > main h3 {
+	scroll-margin-top: calc(var(--header-height) + 1rem);
+	position: relative;
+}
+
+body > main h3 {
+	border-left: 3px solid var(--primary);
+	position: relative;
+	left: -1.5rem;
+	padding-inline-start: 1em;
+}
+
+/* Make clickable heading links for better navigation */
+.heading-anchor {
+	position: absolute;
+	color: var(--text-light);
+	left: -2rem;
+	text-decoration: none;
+	font-weight: normal;
+	opacity: 0;
+	transition: opacity 0.2s;
+}
+h2:hover .heading-anchor,
+h3:hover .heading-anchor {
+	opacity: 0.8;
+}
+
+@media (max-width: 767px) {
+	body > main {
+		padding: 1.5rem 1rem;
+	}
+	body > main h2, body > main h3 {
+		left: 1rem;
+		width: calc(100% - 1rem);
+	}
+	.heading-anchor {
+		opacity: 0.4;
+	}
+}
+
+/* Example boxes */
+.example {
+	border: 1px solid var(--border);
+	border-radius: var(--border-radius);
+	margin: 2rem 0;
+	overflow: hidden;
+	box-shadow: var(--shadow-sm);
+	transition: box-shadow 0.2s;
+}
+
+.example:hover {
+	box-shadow: var(--shadow);
+}
+
+.example-header {
+	background-color: var(--bg-sidebar);
+	padding: 0.75rem 1rem;
+	border-bottom: 1px solid var(--border);
+	font-weight: 600;
+	display: flex;
+	justify-content: space-between;
+	align-items: center;
+}
+
+.example-content {
+	padding: 1.25rem;
+}
+
+/* Icon styling */
 .icon {
-	vertical-align: sub;
-	padding-right: .25rem;
 	display: inline-block;
 	width: 1em;
-	height: 1.3em;
-	margin-right: 0.2rem;
+	height: 1em;
+	vertical-align: -0.125em;
 	stroke-width: 0;
 	stroke: currentColor;
 	fill: currentColor;
 }
-.note{
-	font-size: .9rem;
-	font-style: italic;
+
+/* Information blocks */
+.note, .tip, .warning {
+	padding: 1rem 1.25rem;
+	margin: 1.5rem 0;
+	border-radius: var(--border-radius);
+	position: relative;
+	font-size: 0.95rem;
+	line-height: 1.5;
+}
+
+.note {
+	background-color: rgba(63, 81, 181, 0.08);
+	border-left: 4px solid var(--primary);
+	border-radius: 0 var(--border-radius) var(--border-radius) 0;
+}
+
+.tip {
+	background-color: rgba(46, 204, 113, 0.08);
+	border-left: 4px solid #2ecc71;
+	border-radius: 0 var(--border-radius) var(--border-radius) 0;
+}
+
+.warning {
+	background-color: rgba(241, 196, 15, 0.08);
+	border-left: 4px solid #f1c40f;
+	border-radius: 0 var(--border-radius) var(--border-radius) 0;
+}
+
+.note::before, .tip::before, .warning::before {
+	font-weight: 600;
+	display: block;
+	margin-bottom: 0.5rem;
+}
+
+.note::before {
+	content: "Note";
+	color: var(--primary);
+}
+
+.tip::before {
+	content: "Tip";
+	color: #2ecc71;
+}
+
+.warning::before {
+	content: "Warning";
+	color: #f1c40f;
+}
+
+/* Prev/Next buttons */
+.prev-next {
+	display: flex;
+	justify-content: space-between;
+	margin-top: 3rem;
+	padding-top: 1.5rem;
+	border-top: 1px solid var(--border);
+}
+
+.prev-next a {
+	display: flex;
+	align-items: center;
+	padding: 0.5rem 1rem;
+	border-radius: var(--border-radius);
+	background-color: var(--primary);
+	color: white;
+	transition: background-color 0.2s ease;
+}
+
+.prev-next a:hover {
+	background-color: var(--primary-dark);
+	text-decoration: none;
+}
+
+.prev-next a:empty {
+	display: none;
+}
+
+.prev-next a[rel="prev"]::before {
+	content: "←";
+	margin-right: 0.5rem;
+}
+
+.prev-next a[rel="next"]::after {
+	content: "→";
+	margin-left: 0.5rem;
 }
 `;

docs/layout/head.html.js

@@ -1,38 +1,239 @@
 import { el, elNS } from "deka-dom-el";
-import { pages } from "../ssr.js";
+import { pages, styles } from "../ssr.js";
+const host= "."+header.name;
+const host_nav= "."+nav.name;
+styles.css`
+/* Header */
+${host} {
+	grid-area: header;
+	display: flex;
+	flex-wrap: wrap;
+	align-items: center;
+	justify-content: space-between;
+	padding: 0.75rem 1.5rem;
+	background-color: var(--primary);
+	color: white;
+	box-shadow: var(--shadow);
+	min-height: var(--header-height);
+}
+
+${host} .header-title {
+	display: flex;
+	align-items: center;
+	gap: 0.75rem;
+}
+
+${host} h1 {
+	font-size: 1.25rem;
+	margin: 0;
+	white-space: nowrap;
+	overflow: hidden;
+	text-overflow: ellipsis;
+	color: white;
+}
+
+${host} .version-badge {
+	font-size: 0.75rem;
+	background-color: rgba(150, 150, 150, 0.2);
+	padding: 0.25rem 0.5rem;
+	border-radius: var(--border-radius);
+}
+
+${host} p {
+	display: block;
+	font-size: 0.875rem;
+	opacity: 0.9;
+	margin: 0;
+}
+
+${host} .github-link {
+	display: flex;
+	align-items: center;
+	gap: 0.5rem;
+	color: white;
+	font-size: 0.875rem;
+	padding: 0.375rem 0.75rem;
+	border-radius: var(--border-radius);
+	background-color: rgba(0, 0, 0, 0.2);
+	text-decoration: none;
+	transition: background-color 0.2s;
+}
+
+${host} .github-link:hover {
+	background-color: rgba(0, 0, 0, 0.3);
+	text-decoration: none;
+}
+
+/* Navigation */
+${host_nav} {
+	grid-area: sidebar;
+	background-color: var(--bg-sidebar);
+	border-right: 1px solid var(--border);
+	padding: 1.5rem 1rem;
+	overflow-y: auto;
+	display: flex;
+	flex-direction: column;
+	gap: 0.5rem;
+}
+
+${host_nav} a {
+	display: flex;
+	align-items: center;
+	padding: 0.625rem 0.75rem;
+	border-radius: var(--border-radius);
+	color: var(--text);
+	text-decoration: none;
+	transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
+	line-height: 1.2;
+}
+
+${host_nav} a:hover {
+	background-color: rgba(var(--primary-rgb), 0.08); /* Using CSS variables for better theming */
+	text-decoration: none;
+	transform: translateY(-1px);
+	color: var(--primary);
+}
+
+${host_nav} a.current,
+${host_nav} a[aria-current=page] {
+	background-color: var(--nav-current-bg, var(--primary-dark));
+	color: var(--nav-current-text, white);
+	font-weight: 600;
+	box-shadow: 0 2px 4px rgba(0, 0, 0, 0.25);
+}
+
+${host_nav} a.current:hover,
+${host_nav} a[aria-current=page]:hover {
+	background-color: var(--primary);
+	color: white;
+	transform: translateY(-1px);
+}
+
+${host_nav} a .nav-number {
+	display: inline-block;
+	width: 1.5rem;
+	text-align: right;
+	margin-right: 0.5rem;
+	opacity: 0.7;
+}
+
+${host_nav} a:first-child {
+	display: flex;
+	align-items: center;
+	font-weight: 600;
+	margin-bottom: 0.5rem;
+}
+
+/* Mobile navigation */
+@media (max-width: 767px) {
+	${host_nav} {
+		padding: 0.75rem;
+		display: flex;
+		flex-direction: row;
+		flex-wrap: wrap;
+		gap: 0.5rem;
+		border-bottom: 1px solid var(--border);
+		border-right: none;
+		justify-content: center;
+	}
+
+	${host_nav} a {
+		font-size: 0.875rem;
+		padding: 0.375rem 0.75rem;
+		white-space: nowrap;
+	}
+
+	${host_nav} a .nav-number {
+		width: auto;
+		margin-right: 0.25rem;
+	}
+
+	${host_nav} a:first-child {
+		margin-bottom: 0;
+		margin-right: 0.5rem;
+		min-width: 100%;
+		justify-content: center;
+	}
+}
+`;
 /**
  * @param {object} def
  * @param {import("../types.d.ts").Info} def.info
  * @param {import("../types.d.ts").Pkg} def.pkg Package information.
  * */
 export function header({ info: { href, title, description }, pkg }){
-	title= `\`${pkg.name}\` — ${title}`;
+	const pageTitle = `${pkg.name} — ${title}`;
+
+	// Add meta elements to the head
 	document.head.append(
-		head({ title, description, pkg })
+		head({ title: pageTitle, description, pkg })
 	);
+
+	// Add theme color meta tag
+	document.head.append(
+		el("meta", { name: "theme-color", content: "#3f51b5" })
+	);
+
 	return el().append(
-		el("header").append(
-			el("h1", title),
-			el("p", description)
-		),
-		el("nav").append(
-			el("a", { href: pkg.homepage }).append(
-				el(iconGitHub),
-				"GitHub"
+		// Header section with accessibility support
+		el("header", { role: "banner", className: header.name }).append(
+			el("div", { className: "header-title" }).append(
+				el("a", {
+					href: pkg.homepage,
+					className: "github-link",
+					"aria-label": "View on GitHub",
+					target: "_blank",
+					rel: "noopener noreferrer"
+				}).append(
+					el(iconGitHub),
+				),
+				el("h1").append(
+					el("a", { href: pages[0].href, textContent: pkg.name, title: "Go to documentation homepage" }),
+				),
+				el("span", {
+					className: "version-badge",
+					"aria-label": "Version",
+					textContent: pkg.version || ""
+				})
 			),
-			...pages.map((p, i)=> el("a", {
-				href: p.href==="index" ? "./" : p.href,
-				textContent: (i+1) + ". " + p.title,
-				title: p.description,
-				classList: { current: p.href===href }
-			}))
-		)
+			el("p", description),
+		),
+
+		// Navigation between pages
+		nav({ href })
+	);
+}
+function nav({ href }){
+	return el("nav", {
+		role: "navigation",
+		"aria-label": "Main navigation",
+		className: nav.name
+	}).append(
+		...pages.map((p, i) => {
+			const isIndex = p.href === "index";
+			const isCurrent = p.href === href;
+
+			return el("a", {
+				href: isIndex ? "./" : p.href,
+				title: p.description || `Go to ${p.title}`,
+				"aria-current": isCurrent ? "page" : null,
+				classList: { current: isCurrent }
+			}).append(
+				el("span", {
+					className: "nav-number",
+					"aria-hidden": "true",
+					textContent: `${i+1}.`
+				}),
+				p.title
+			);
+		})
 	);
 }
 function head({ title, description, pkg }){
 	return el().append(
 		el("meta", { name: "viewport", content: "width=device-width, initial-scale=1" }),
 		el("meta", { name: "description", content: description }),
+		el("meta", { name: "theme-color", content: "#b71c1c" }),
 		el("title", title),
 		el(metaAuthor),
 		el(metaTwitter, pkg),

docs/layout/simplePage.html.js

@@ -7,9 +7,25 @@ import { prevNext } from "../components/pageUtils.html.js";
 /** @param {Pick<import("../types.d.ts").PageAttrs, "pkg" | "info">} attrs */
 export function simplePage({ pkg, info }){
 	return simulateSlots(el().append(
+		// Skip link for keyboard navigation
+		el("a", {
+			href: "#main-content",
+			className: "skip-link",
+			textContent: "Skip to main content"
+		}),
+
+		// Header with site information
 		el(header, { info, pkg }),
-		el("main").append(
+
+		// Main content area
+		el("main", { id: "main-content", role: "main" }).append(
+			// Page title as an h1
+			el("h1", { className: "page-title", textContent: info.title }),
+
+			// Main content from child elements
 			el("slot"),
+
+			// Navigation between pages
 			el(prevNext, info)
 		)
 	));

docs/p04-signals.html.js

@@ -1,7 +1,7 @@
 import { T, t } from "./utils/index.js";
 export const info= {
 	title: t`Signals and reactivity`,
-	description: t`Handling reactivity in UI via signals.`,
+	description: t`Managing reactive UI state with signals.`,
 };
 
 import { el } from "deka-dom-el";
@@ -69,9 +69,9 @@ export function page({ pkg, info }){
 			some manner independent and still connected to the same reactive entity.
 		`),
 		el("p").append(...T`
-			Signals are implemented in the library as functions. To see current value of signal, just call it without
-			any arguments ${el("code", "console.log(signal())")}. To update the signal value, pass any argument
-			${el("code", `signal('${t`a new value`}')`)}. For listenning the signal value changes, use
+			Signals are implemented in the library as objects with methods. To see current value of signal,
+			call the get method ${el("code", "console.log(signal.get())")}. To update the signal value, use the set method
+			${el("code", `signal.set('${t`a new value`}')`)}. For listenning the signal value changes, use
 			${el("code", "S.on(signal, console.log)")}.
 		`),
 		el("p").append(...T`
@@ -100,10 +100,10 @@ export function page({ pkg, info }){
 		`),
 
 		el(h3, t`Reactive DOM attributes and elements`),
-		el("p", t`There are on basic level two distinc situation to mirror dynamic value into the DOM/UI`),
+		el("p", t`There are two fundamental ways to make your DOM reactive with signals:`),
 		el("ol").append(
-			el("li", t`to change some attribute(s) of existing element(s)`),
-			el("li", t`to generate elements itself dynamically – this covers conditions and loops`)
+			el("li", t`Reactive attributes: Update properties, attributes, and styles of existing elements`),
+			el("li", t`Reactive elements: Dynamically create or update DOM elements based on data changes (for conditions and loops)`)
 		),
 		el(example, { src: fileURL("./components/examples/signals/dom-attrs.js"), page_id }),
 		el("p").append(...T`
@@ -114,7 +114,7 @@ export function page({ pkg, info }){
 		`),
 		el("p").append(...T`
 			For computation, you can use the “derived signal” (see above) like
-			${el("code", "assign(element, { textContent: S(()=> 'Hello '+WorldSignal()) })")}. This is read-only signal
+			${el("code", "assign(element, { textContent: S(()=> 'Hello '+WorldSignal.get()) })")}. This is read-only signal
 			its value is computed based on given function and updated when any signal used in the function changes.
 		`),
 		el("p").append(...T`

examples/components/3rd-party.js

@@ -15,7 +15,7 @@ export function thirdParty(){
 	}, {
 		set(key, value){
 			const p=  this.value[key] || S();
-			p(value);
+			p.set(value);
 			this.value[key]= p;
 		}
 	});
@@ -32,7 +32,7 @@ export function thirdParty(){
 	})();
 	return el("input", {
 		className,
-		value: store().value(),
+		value: store.get().value.get(),
 		type: "text",
 		onchange: ev=> S.action(store, "set", "value", ev.target.value)
 	});

examples/components/fullNameComponent.js

@@ -9,24 +9,24 @@ export function fullNameComponent(){
 	const labels= [ "Name", "Surname" ];
 	const name= labels.map(_=> S(""));
 	const full_name= S(()=>
-		name.map(l=> l()).filter(Boolean).join(" ") || "-");
+		name.map(l=> l.get()).filter(Boolean).join(" ") || "-");
 	scope.host(
 		on.connected(()=> console.log(fullNameComponent)),
 		on.disconnected(()=> console.log(fullNameComponent))
 	);
 
 	const count= S(0);
-	setInterval(()=> count(count()+1), 5000);
+	setInterval(()=> count.set(count.get()+1), 5000);
 	const style= { height: "80px", display: "block", fill: "currentColor" };
 	const elSVG= elNS("http://www.w3.org/2000/svg");
 	return el("div", { className }).append(
 		el("h2", "Simple form:"),
-		el("p", { textContent: S(()=> "Count: "+count()),
-			dataset: { count }, classList: { count: S(() => count()%2 === 0) } }),
+		el("p", { textContent: S(()=> "Count: "+count.get()),
+			dataset: { count }, classList: { count: S(() => count.get()%2 === 0) } }),
 		el("form", { onsubmit: ev=> ev.preventDefault() }).append(
 			...name.map((v, i)=>
 				el("label", labels[i]).append(
-					el("input", { type: "text", name: labels[i], value: v() }, on("change", ev=> v(ev.target.value)))
+					el("input", { type: "text", name: labels[i], value: v.get() }, on("change", ev=> v.set(ev.target.value)))
 				))
 		),
 		el("p").append(

examples/components/todosComponent.js

@@ -58,7 +58,7 @@ export function todosComponent({ todos= [ "Task A" ] }= {}){
 		),
 		el("div").append(
 			el("h3", "Output (JSON):"),
-			el("output", S(()=> JSON.stringify(Array.from(todosO()), null, "\t")))
+			el("output", S(()=> JSON.stringify(Array.from(todosO.get()), null, "\t")))
 		)
 	)
 }
@@ -80,13 +80,13 @@ function todoComponent({ textContent, value }){
 	const is_editable= S(false);
 	const onedited= on("change", ev=> {
 		const el= /** @type {HTMLInputElement} */ (ev.target);
-		textContent(el.value);
-		is_editable(false);
+		textContent.set(el.value);
+		is_editable.set(false);
 	});
 	return el("li").append(
 		S.el(is_editable, is=> is
-			? el("input", { value: textContent(), type: "text" }, onedited)
-			: el("span", { textContent, onclick: is_editable.bind(null, true) })
+			? el("input", { value: textContent.get(), type: "text" }, onedited)
+			: el("span", { textContent, onclick: ()=> is_editable.set(true) })
 		),
 		el("button", { type: "button", value, textContent: "-" }, onclick)
 	);

examples/components/webComponent.js

@@ -34,7 +34,7 @@ export class CustomHTMLTestElement extends HTMLElement{
 			text(test),
 			text(name),
 			text(preName),
-			el("button", { type: "button", textContent: "pre-name", onclick: ()=> preName("Ahoj") }),
+			el("button", { type: "button", textContent: "pre-name", onclick: ()=> preName.set("Ahoj") }),
 			" | ",
 			el("slot", { className: "test", name: "test" }),
 		);

examples/index.js

@@ -20,7 +20,7 @@ document.body.append(
 		el("span", { textContent: "test", slot: "test" }),
 	),
 	el(thirdParty),
-	el(CustomSlottingHTMLElement.tagName, { onclick: ()=> toggle(!toggle()) }).append(
+	el(CustomSlottingHTMLElement.tagName, { onclick: ()=> toggle.set(!toggle.get()) }).append(
 		el("strong", { slot: "name", textContent: "Honzo" }),
 		S.el(toggle, is=> is
 			? el("span", "…default slot")

index.d.ts

@@ -52,9 +52,12 @@ type IsReadonly<T, K extends keyof T> =
  * @private
  */
 type ElementAttributes<T extends SupportedElement>= Partial<{
-	[K in keyof _fromElsInterfaces<T>]: IsReadonly<_fromElsInterfaces<T>, K> extends false
-		? _fromElsInterfaces<T>[K] | ddeSignal<_fromElsInterfaces<T>[K]>
-		: ddeStringable
+	[K in keyof _fromElsInterfaces<T>]:
+		_fromElsInterfaces<T>[K] extends ((...p: any[])=> any)
+			? _fromElsInterfaces<T>[K] | ((...p: Parameters<_fromElsInterfaces<T>[K]>)=> ddeSignal<ReturnType<_fromElsInterfaces<T>[K]>>)
+			: (IsReadonly<_fromElsInterfaces<T>, K> extends false
+				? _fromElsInterfaces<T>[K] | ddeSignal<_fromElsInterfaces<T>[K]>
+				: ddeStringable)
 } & AttrsModified> & Record<string, any>;
 export function classListDeclarative<El extends SupportedElement>(
 	element: El,

package.json

@@ -29,8 +29,8 @@
 			"types": "./jsdom.d.ts"
 		},
 		"./src/signals-lib": {
-			"import": "./src/signals-lib.js",
-			"types": "./src/signals-lib.d.ts"
+			"import": "./src/signals-lib/signals-lib.js",
+			"types": "./src/signals-lib/signals-lib.d.ts"
 		}
 	},
 	"files": [
@@ -53,7 +53,8 @@
 		"globals": {
 			"requestIdleCallback": false,
 			"AbortController": false,
-			"AbortSignal": false
+			"AbortSignal": false,
+			"FinalizationRegistry": false
 		}
 	},
 	"size-limit": [
@@ -65,7 +66,7 @@
 		},
 		{
 			"path": "./signals.js",
-			"limit": "12 kB",
+			"limit": "12.5 kB",
 			"gzip": false,
 			"brotli": false
 		},
@@ -77,7 +78,7 @@
 		},
 		{
 			"path": "./index-with-signals.js",
-			"limit": "5.25 kB"
+			"limit": "5.5 kB"
 		}
 	],
 	"modifyEsbuildConfig": {

signals.d.ts

@@ -1,4 +1,12 @@
-export type Signal<V, A>= (set?: V)=> V & A;
+export interface Signal<V, A> {
+	/** The current value of the signal */
+	get(): V;
+	/** Set new value of the signal */
+	set(value: V): V;
+	toJSON(): V;
+	valueOf(): V;
+}
+
 type Action<V>= (this: { value: V, stopPropagation(): void }, ...a: any[])=> typeof signal._ | void;
 //type SymbolSignal= Symbol;
 type SymbolOnclear= symbol;
@@ -27,7 +35,7 @@ interface signal{
 	 * ```js
 	 * const name= S("Jan");
 	 * const surname= S("Andrle");
-	 * const fullname= S(()=> name()+" "+surname());
+	 * const fullname= S(()=> name.get()+" "+surname.get());
 	 * ```
 	 * @param value Initial signal value. Or function computing value from other signals.
 	 * @param actions Use to define actions on the signal. Such as add item to the array.

signals.js

@@ -1,4 +1,4 @@
-export { signal, S, isSignal } from "./src/signals-lib.js";
-import { signals_config } from "./src/signals-lib.js";
-import { registerReactivity } from "./src/signals-common.js";
+export { signal, S, isSignal } from "./src/signals-lib/signals-lib.js";
+import { signals_config } from "./src/signals-lib/signals-lib.js";
+import { registerReactivity } from "./src/signals-lib/common.js";
 registerReactivity(signals_config);

src/customElement.js

@@ -1,6 +1,15 @@
 import { keyLTE, evc, evd, eva } from "./dom-common.js";
 import { scope } from "./dom.js";
 import { c_ch_o } from "./events-observer.js";
+
+/**
+ * Renders content into a custom element or shadow root
+ *
+ * @param {Element|ShadowRoot} target - The custom element or shadow root to render into
+ * @param {Function} render - The render function that returns content
+ * @param {Function|Object} [props=observedAttributes] - Props to pass to the render function
+ * @returns {Node} The rendered content
+ */
 export function customElementRender(target, render, props= observedAttributes){
 	const custom_element= target.host || target;
 	scope.push({
@@ -17,6 +26,13 @@ export function customElementRender(target, render, props= observedAttributes){
 	scope.pop();
 	return target.append(out);
 }
+
+/**
+ * Transforms custom element lifecycle callbacks into events
+ *
+ * @param {Function|Object} class_declaration - Custom element class or instance
+ * @returns {Function|Object} The modified class or instance
+ */
 export function lifecyclesToEvents(class_declaration){
 	wrapMethod(class_declaration.prototype, "connectedCallback", function(target, thisArg, detail){
 		target.apply(thisArg, detail);
@@ -38,12 +54,30 @@ export function lifecyclesToEvents(class_declaration){
 	class_declaration.prototype[keyLTE]= true;
 	return class_declaration;
 }
+
+/** Public API */
 export { lifecyclesToEvents as customElementWithDDE };
+
+/**
+ * Wraps a method with a proxy to intercept calls
+ *
+ * @param {Object} obj - Object containing the method
+ * @param {string} method - Method name to wrap
+ * @param {Function} apply - Function to execute when method is called
+ * @private
+ */
 function wrapMethod(obj, method, apply){
 	obj[method]= new Proxy(obj[method] || (()=> {}), { apply });
 }
 
 import { observedAttributes as oA } from "./helpers.js";
+
+/**
+ * Gets observed attributes for a custom element
+ *
+ * @param {Element} instance - Custom element instance
+ * @returns {Object} Object mapping camelCase attribute names to their values
+ */
 export function observedAttributes(instance){
 	return oA(instance, (i, n)=> i.getAttribute(n));
 }

src/dom-common.js

@@ -1,3 +1,15 @@
+/**
+ * Environment configuration and globals for the library
+ * @typedef {Object} Environment
+ * @property {typeof setDeleteAttr} setDeleteAttr - Function to safely set or delete attributes
+ * @property {string} ssr - Server-side rendering flag
+ * @property {Document} D - Document global
+ * @property {typeof DocumentFragment} F - DocumentFragment constructor
+ * @property {typeof HTMLElement} H - HTMLElement constructor
+ * @property {typeof SVGElement} S - SVGElement constructor
+ * @property {typeof MutationObserver} M - MutationObserver constructor
+ * @property {Function} q - Promise wrapper for Promse queue feature
+ */
 export const enviroment= {
 	setDeleteAttr,
 	ssr: "",
@@ -8,26 +20,43 @@ export const enviroment= {
 	M: globalThis.MutationObserver,
 	q: p=> p || Promise.resolve(),
 };
-import { isUndef } from './helpers.js';
+import { isInstance, isUndef } from './helpers.js';
+
+/**
+ * Handles attribute setting with special undefined handling
+ *
+ * @param {Object} obj - The object to set the property on
+ * @param {string} prop - The property name
+ * @param {any} val - The value to set
+ * @returns {void}
+ *
+ * Issue:
+ *   For some native attrs you can unset only to set empty string.
+ *   This can be confusing as it is seen in inspector `<… id=""`.
+ *   Options:
+ *     1. Leave it, as it is native behaviour
+ *     2. Sets as empty string and removes the corresponding attribute when also has empty string
+ *     3. (*) Sets as undefined and removes the corresponding attribute when "undefined" string discovered
+ *     4. Point 2. with checks for coincidence (e.g. use special string)
+ */
 function setDeleteAttr(obj, prop, val){
-	/* Issue
-		For some native attrs you can unset only to set empty string.
-		This can be confusing as it is seen in inspector `<… id=""`.
-		Options:
-			1. Leave it, as it is native behaviour
-			2. Sets as empty string and removes the corresponding attribute when also has empty string
-			3. (*) Sets as undefined and removes the corresponding attribute when "undefined" string discovered
-			4. Point 2. with checks for coincidence (e.g. use special string)
-	*/
 	Reflect.set(obj, prop, val);
 	if(!isUndef(val)) return;
 	Reflect.deleteProperty(obj, prop);
-	if(obj instanceof enviroment.H && obj.getAttribute(prop)==="undefined")
+	if(isInstance(obj, enviroment.H) && obj.getAttribute(prop)==="undefined")
 		return obj.removeAttribute(prop);
 	if(Reflect.get(obj, prop)==="undefined")
 		return Reflect.set(obj, prop, "");
 }
+
+/** Property key for tracking lifecycle events */
 export const keyLTE= "__dde_lifecyclesToEvents"; //boolean
+
+/** Event name for connected lifecycle event */
 export const evc= "dde:connected";
+
+/** Event name for disconnected lifecycle event */
 export const evd= "dde:disconnected";
+
+/** Event name for attribute changed lifecycle event */
 export const eva= "dde:attributeChanged";

src/dom.js

@@ -1,38 +1,104 @@
-import { signals } from "./signals-common.js";
+import { signals } from "./signals-lib/common.js";
 import { enviroment as env } from './dom-common.js';
+import { isInstance, isUndef, oAssign } from "./helpers.js";
 
-//TODO: add type, docs ≡ make it public
+/**
+ * Queues a promise, this is helpful for crossplatform components (on server side we can wait for all registered
+ * promises to be resolved before rendering).
+ * @param {Promise} promise - Promise to process
+ * @returns {Promise} Processed promise
+ */
 export function queue(promise){ return env.q(promise); }
-/** @type {{ scope: object, prevent: boolean, host: function }[]} */
+
+/**
+ * Array of scope contexts for tracking component hierarchies
+ * @type {{ scope: object, prevent: boolean, host: function }[]}
+ */
 const scopes= [ {
 	get scope(){ return  env.D.body; },
 	host: c=> c ? c(env.D.body) : env.D.body,
 	prevent: true,
 } ];
+/**
+ * Scope management utility for tracking component hierarchies
+ */
 export const scope= {
+	/**
+	 * Gets the current scope
+	 * @returns {Object} Current scope context
+	 */
 	get current(){ return scopes[scopes.length-1]; },
+
+	/**
+	 * Gets the host element of the current scope
+	 * @returns {Function} Host accessor function
+	 */
 	get host(){ return this.current.host; },
 
+	/**
+	 * Prevents default behavior in the current scope
+	 * @returns {Object} Current scope context
+	 */
 	preventDefault(){
 		const { current }= this;
 		current.prevent= true;
 		return current;
 	},
 
+	/**
+	 * Gets a copy of the current scope stack
+	 * @returns {Array} Copy of scope stack
+	 */
 	get state(){ return [ ...scopes ]; },
-	push(s= {}){ return scopes.push(Object.assign({}, this.current, { prevent: false }, s)); },
+
+	/**
+	 * Pushes a new scope to the stack
+	 * @param {Object} [s={}] - Scope object to push
+	 * @returns {number} New length of the scope stack
+	 */
+	push(s= {}){ return scopes.push(oAssign({}, this.current, { prevent: false }, s)); },
+
+	/**
+	 * Pushes the root scope to the stack
+	 * @returns {number} New length of the scope stack
+	 */
 	pushRoot(){ return scopes.push(scopes[0]); },
+
+	/**
+	 * Pops the current scope from the stack
+	 * @returns {Object|undefined} Popped scope or undefined if only one scope remains
+	 */
 	pop(){
 		if(scopes.length===1) return;
 		return scopes.pop();
 	},
 };
-//NOTE: following chainableAppend implementation is OK as the ElementPrototype.append description already is { writable: true, enumerable: true, configurable: true } // editorconfig-checker-disable-line
+/**
+ * Chainable append function for elements
+ * @private
+ */
 function append(...els){ this.appendOriginal(...els); return this; }
+
+/**
+ * Makes an element's append method chainable. NOTE: following chainableAppend implementation is OK as the
+ * ElementPrototype.append description already is { writable: true, enumerable: true, configurable: true }
+ * @param {Element} el - Element to modify
+ * @returns {Element} Modified element
+ */
 export function chainableAppend(el){
 	if(el.append===append) return el; el.appendOriginal= el.append; el.append= append; return el;
 }
+/** Current namespace for element creation */
 let namespace;
+
+/**
+ * Creates a DOM element with specified tag, attributes and addons
+ *
+ * @param {string|Function} tag - Element tag name or component function
+ * @param {Object|string|number} [attributes] - Element attributes
+ * @param {...Function} addons - Functions to call with the created element
+ * @returns {Element|DocumentFragment} Created element
+ */
 export function createElement(tag, attributes, ...addons){
 	/* jshint maxcomplexity: 15 */
 	const s= signals(this);
@@ -47,7 +113,7 @@ export function createElement(tag, attributes, ...addons){
 				(scoped===1 ? addons.unshift(...c) : c.forEach(c=> c(el_host)), undefined);
 			scope.push({ scope: tag, host });
 			el= tag(attributes || undefined);
-			const is_fragment= el instanceof env.F;
+			const is_fragment= isInstance(el, env.F);
 			if(el.nodeName==="#comment") break;
 			const el_mark= createElement.mark({
 				type: "component",
@@ -70,10 +136,15 @@ export function createElement(tag, attributes, ...addons){
 	scoped= 2;
 	return el;
 }
+
 /**
- * @param { { type: "component", name: string, host: "this" | "parentElement" } | { type: "reactive" | "later" } } attrs
- * @param {boolean} [is_open=false]
- * */
+ * Creates a marker comment for elements
+ *
+ * @param {{ type: "component"|"reactive"|"later", name?: string, host?: "this"|"parentElement" }} attrs - Marker
+ * attributes
+ * @param {boolean} [is_open=false] - Whether the marker is open-ended
+ * @returns {Comment} Comment node marker
+ */
 createElement.mark= function(attrs, is_open= false){
 	attrs= Object.entries(attrs).map(([ n, v ])=> n+`="${v}"`).join(" ");
 	const end= is_open ? "" : "/";
@@ -81,8 +152,16 @@ createElement.mark= function(attrs, is_open= false){
 	if(is_open) out.end= env.D.createComment("</dde:mark>");
 	return out;
 };
+/** Alias for createElement */
 export { createElement as el };
+
 //TODO?: const namespaceHelper= ns=> ns==="svg" ? "http://www.w3.org/2000/svg" : ns;
+/**
+ * Creates a namespaced element creation function
+ *
+ * @param {string} ns - Namespace URI
+ * @returns {Function} Element creation function for the namespace
+ */
 export function createElementNS(ns){
 	const _this= this;
 	return function createElementNSCurried(...rest){
@@ -92,9 +171,17 @@ export function createElementNS(ns){
 		return el;
 	};
 }
+
+/** Alias for createElementNS */
 export { createElementNS as elNS };
 
-/** @param {HTMLElement} element @param {HTMLElement} [root] */
+/**
+ * Simulates slot functionality for elements
+ *
+ * @param {HTMLElement} element - Parent element
+ * @param {HTMLElement} [root=element] - Root element containing slots
+ * @returns {HTMLElement} The root element
+ */
 export function simulateSlots(element, root= element){
 	const mark_e= "¹⁰", mark_s= "✓"; //NOTE: Markers to identify slots processed by this function. Also “prevents” native behavior as it is unlikely to use these in names. // editorconfig-checker-disable-line
 	const slots= Object.fromEntries(
@@ -128,17 +215,34 @@ export function simulateSlots(element, root= element){
 	return root;
 }
 
+/** Store for element assignment contexts */
 const assign_context= new WeakMap();
 const { setDeleteAttr }= env;
+
+/**
+ * Assigns attributes to an element
+ *
+ * @param {Element} element - Element to assign attributes to
+ * @param {...Object} attributes - Attribute objects to assign
+ * @returns {Element} The element with attributes assigned
+ */
 export function assign(element, ...attributes){
 	if(!attributes.length) return element;
 	assign_context.set(element, assignContext(element, this));
 
-	for(const [ key, value ] of Object.entries(Object.assign({}, ...attributes)))
+	for(const [ key, value ] of Object.entries(oAssign({}, ...attributes)))
 		assignAttribute.call(this, element, key, value);
 	assign_context.delete(element);
 	return element;
 }
+/**
+ * Assigns a single attribute to an element
+ *
+ * @param {Element} element - Element to assign attribute to
+ * @param {string} key - Attribute name
+ * @param {any} value - Attribute value
+ * @returns {any} Result of the attribute assignment
+ */
 export function assignAttribute(element, key, value){
 	const { setRemoveAttr, s }= assignContext(element, this);
 	const _this= this;
@@ -170,13 +274,28 @@ export function assignAttribute(element, key, value){
 	}
 	return isPropSetter(element, key) ? setDeleteAttr(element, key, value) : setRemoveAttr(key, value);
 }
+/**
+ * Gets or creates assignment context for an element
+ *
+ * @param {Element} element - Element to get context for
+ * @param {Object} _this - Context object
+ * @returns {Object} Assignment context
+ * @private
+ */
 function assignContext(element, _this){
 	if(assign_context.has(element)) return assign_context.get(element);
-	const is_svg= element instanceof env.S;
+	const is_svg= isInstance(element, env.S);
 	const setRemoveAttr= (is_svg ? setRemoveNS : setRemove).bind(null, element, "Attribute");
 	const s= signals(_this);
 	return { setRemoveAttr, s };
 }
+/**
+ * Applies a declarative classList object to an element
+ *
+ * @param {Element} element - Element to apply classes to
+ * @param {Object} toggle - Object with class names as keys and boolean values
+ * @returns {Element} The element with classes applied
+ */
 export function classListDeclarative(element, toggle){
 	const s= signals(this);
 	forEachEntries(s, "classList", element, toggle,
@@ -184,18 +303,45 @@ export function classListDeclarative(element, toggle){
 			element.classList.toggle(class_name, val===-1 ? undefined : Boolean(val)) );
 	return element;
 }
+
+/**
+ * Generic element attribute manipulation
+ *
+ * @param {Element} element - Element to manipulate
+ * @param {string} op - Operation ("set" or "remove")
+ * @param {string} key - Attribute name
+ * @param {any} [value] - Attribute value
+ * @returns {void}
+ */
 export function elementAttribute(element, op, key, value){
-	if(element instanceof env.H)
+	if(isInstance(element, env.H))
 		return element[op+"Attribute"](key, value);
 	return element[op+"AttributeNS"](null, key, value);
 }
-import { isUndef } from "./helpers.js";
+
 //TODO: add cache? `(Map/Set)<el.tagName+key,isUndef>`
+/**
+ * Checks if a property can be set on an element
+ *
+ * @param {Element} el - Element to check
+ * @param {string} key - Property name
+ * @returns {boolean} Whether the property can be set
+ * @private
+ */
 function isPropSetter(el, key){
 	if(!(key in el)) return false;
 	const des= getPropDescriptor(el, key);
 	return !isUndef(des.set);
 }
+
+/**
+ * Gets a property descriptor from a prototype chain
+ *
+ * @param {Object} p - Prototype object
+ * @param {string} key - Property name
+ * @returns {PropertyDescriptor} Property descriptor
+ * @private
+ */
 function getPropDescriptor(p, key){
 	p= Object.getPrototypeOf(p);
 	if(!p) return {};
@@ -224,9 +370,44 @@ function forEachEntries(s, target, element, obj, cb){
 	});
 }
 
+/**
+ * Sets or removes an attribute based on value
+ *
+ * @param {Element} obj - Element to modify
+ * @param {string} prop - Property suffix ("Attribute")
+ * @param {string} key - Attribute name
+ * @param {any} val - Attribute value
+ * @returns {void}
+ * @private
+ */
 function setRemove(obj, prop, key, val){
-	return obj[ (isUndef(val) ? "remove" : "set") + prop ](key, val); }
+	return obj[ (isUndef(val) ? "remove" : "set") + prop ](key, val);
+}
+
+/**
+ * Sets or removes a namespaced attribute based on value
+ *
+ * @param {Element} obj - Element to modify
+ * @param {string} prop - Property suffix ("Attribute")
+ * @param {string} key - Attribute name
+ * @param {any} val - Attribute value
+ * @param {string|null} [ns=null] - Namespace URI
+ * @returns {void}
+ * @private
+ */
 function setRemoveNS(obj, prop, key, val, ns= null){
-	return obj[ (isUndef(val) ? "remove" : "set") + prop + "NS" ](ns, key, val); }
+	return obj[ (isUndef(val) ? "remove" : "set") + prop + "NS" ](ns, key, val);
+}
+
+/**
+ * Sets or deletes a property based on value
+ *
+ * @param {Object} obj - Object to modify
+ * @param {string} key - Property name
+ * @param {any} val - Property value
+ * @returns {void}
+ * @private
+ */
 function setDelete(obj, key, val){
-	Reflect.set(obj, key, val); if(!isUndef(val)) return; return Reflect.deleteProperty(obj, key); }
+	Reflect.set(obj, key, val); if(!isUndef(val)) return; return Reflect.deleteProperty(obj, key);
+}

src/events-observer.js

@@ -1,11 +1,27 @@
 import { enviroment as env, evc, evd } from './dom-common.js';
+import { isInstance } from "./helpers.js";
+
+/**
+ * Connection changes observer for tracking element connection/disconnection
+ * Falls back to a dummy implementation if MutationObserver is not available
+ */
 export const c_ch_o= env.M ? connectionsChangesObserverConstructor() : new Proxy({}, {
 	get(){ return ()=> {}; }
 });
 
+/**
+ * Creates an observer that tracks elements being connected to and disconnected from the DOM
+ * @returns {Object} Observer with methods to register element listeners
+ */
 function connectionsChangesObserverConstructor(){
 	const store= new Map();
 	let is_observing= false;
+
+	/**
+	 * Creates a mutation observer callback
+	 * @param {Function} stop - Function to stop observation when no longer needed
+	 * @returns {Function} MutationObserver callback
+	 */
 	const observerListener= stop=> function(mutations){
 		for(const mutation of mutations){
 			if(mutation.type!=="childList") continue;
@@ -17,13 +33,26 @@ function connectionsChangesObserverConstructor(){
 				stop();
 		}
 	};
+
 	const observer= new env.M(observerListener(stop));
+
 	return {
+		/**
+		 * Creates an observer for a specific element
+		 * @param {Element} element - Element to observe
+		 * @returns {Function} Cleanup function
+		 */
 		observe(element){
 			const o= new env.M(observerListener(()=> {}));
 			o.observe(element, { childList: true, subtree: true });
 			return ()=> o.disconnect();
 		},
+
+		/**
+		 * Register a connection listener for an element
+		 * @param {Element} element - Element to watch
+		 * @param {Function} listener - Callback for connection event
+		 */
 		onConnected(element, listener){
 			start();
 			const listeners= getElementStore(element);
@@ -31,6 +60,12 @@ function connectionsChangesObserverConstructor(){
 			listeners.connected.add(listener);
 			listeners.length_c+= 1;
 		},
+
+		/**
+		 * Unregister a connection listener
+		 * @param {Element} element - Element being watched
+		 * @param {Function} listener - Callback to remove
+		 */
 		offConnected(element, listener){
 			if(!store.has(element)) return;
 			const ls= store.get(element);
@@ -39,6 +74,12 @@ function connectionsChangesObserverConstructor(){
 			ls.length_c-= 1;
 			cleanWhenOff(element, ls);
 		},
+
+		/**
+		 * Register a disconnection listener for an element
+		 * @param {Element} element - Element to watch
+		 * @param {Function} listener - Callback for disconnection event
+		 */
 		onDisconnected(element, listener){
 			start();
 			const listeners= getElementStore(element);
@@ -46,6 +87,12 @@ function connectionsChangesObserverConstructor(){
 			listeners.disconnected.add(listener);
 			listeners.length_d+= 1;
 		},
+
+		/**
+		 * Unregister a disconnection listener
+		 * @param {Element} element - Element being watched
+		 * @param {Function} listener - Callback to remove
+		 */
 		offDisconnected(element, listener){
 			if(!store.has(element)) return;
 			const ls= store.get(element);
@@ -55,12 +102,24 @@ function connectionsChangesObserverConstructor(){
 			cleanWhenOff(element, ls);
 		}
 	};
+
+	/**
+	 * Cleanup element tracking when all listeners are removed
+	 * @param {Element} element - Element to potentially remove from tracking
+	 * @param {Object} ls - Element's listener store
+	 */
 	function cleanWhenOff(element, ls){
 		if(ls.length_c || ls.length_d)
 			return;
 		store.delete(element);
 		stop();
 	}
+
+	/**
+	 * Gets or creates a store for element listeners
+	 * @param {Element} element - Element to get store for
+	 * @returns {Object} Listener store for the element
+	 */
 	function getElementStore(element){
 		if(store.has(element)) return store.get(element);
 		const out= {
@@ -72,32 +131,58 @@ function connectionsChangesObserverConstructor(){
 		store.set(element, out);
 		return out;
 	}
+
+	/**
+	 * Start observing DOM changes
+	 */
 	function start(){
 		if(is_observing) return;
 		is_observing= true;
 		observer.observe(env.D.body, { childList: true, subtree: true });
 	}
+
+	/**
+	 * Stop observing DOM changes when no longer needed
+	 */
 	function stop(){
 		if(!is_observing || store.size) return;
 		is_observing= false;
 		observer.disconnect();
 	}
+
 	//TODO: remount support?
+	/**
+	 * Schedule a task during browser idle time
+	 * @returns {Promise<void>} Promise that resolves when browser is idle
+	 */
 	function requestIdle(){ return new Promise(function(resolve){
 		(requestIdleCallback || requestAnimationFrame)(resolve);
 	}); }
+
+	/**
+	 * Collects child elements from the store that are contained by the given element
+	 * @param {Element} element - Parent element
+	 * @returns {Promise<Element[]>} Promise resolving to array of child elements
+	 */
 	async function collectChildren(element){
 		if(store.size > 30)//TODO?: limit
 			await requestIdle();
 		const out= [];
-		if(!(element instanceof Node)) return out;
+		if(!isInstance(element, Node)) return out;
 		for(const el of store.keys()){
-			if(el===element || !(el instanceof Node)) continue;
+			if(el===element || !isInstance(el, Node)) continue;
 			if(element.contains(el))
 				out.push(el);
 		}
 		return out;
 	}
+
+	/**
+	 * Process nodes added to the DOM
+	 * @param {NodeList} addedNodes - Nodes that were added
+	 * @param {boolean} is_root - Whether these are root-level additions
+	 * @returns {boolean} Whether any relevant elements were processed
+	 */
 	function observerAdded(addedNodes, is_root){
 		let out= false;
 		for(const element of addedNodes){
@@ -115,6 +200,13 @@ function connectionsChangesObserverConstructor(){
 		}
 		return out;
 	}
+
+	/**
+	 * Process nodes removed from the DOM
+	 * @param {NodeList} removedNodes - Nodes that were removed
+	 * @param {boolean} is_root - Whether these are root-level removals
+	 * @returns {boolean} Whether any relevant elements were processed
+	 */
 	function observerRemoved(removedNodes, is_root){
 		let out= false;
 		for(const element of removedNodes){
@@ -128,6 +220,12 @@ function connectionsChangesObserverConstructor(){
 		}
 		return out;
 	}
+
+	/**
+	 * Creates a function to dispatch the disconnect event
+	 * @param {Element} element - Element that was removed
+	 * @returns {Function} Function to dispatch event after confirming disconnection
+	 */
 	function dispatchRemove(element){
 		return ()=> {
 			if(element.isConnected) return;

src/events.js

@@ -1,6 +1,15 @@
-export { registerReactivity } from './signals-common.js';
+export { registerReactivity } from './signals-lib/common.js';
 import { enviroment as env, keyLTE, evc, evd, eva } from './dom-common.js';
+import { oAssign, onAbort } from './helpers.js';
 
+/**
+ * Creates a function to dispatch events on elements
+ *
+ * @param {string} name - Event name
+ * @param {Object} [options] - Event options
+ * @param {Element|Function} [host] - Host element or function returning host element
+ * @returns {Function} Function that dispatches the event
+ */
 export function dispatchEvent(name, options, host){
 	if(!options) options= {};
 	return function dispatch(element, ...d){
@@ -9,10 +18,19 @@ export function dispatchEvent(name, options, host){
 			element= typeof host==="function"? host() : host;
 		}
 		//TODO: what about re-emmitting?
-		const event= d.length ? new CustomEvent(name, Object.assign({ detail: d[0] }, options)) : new Event(name, options);
+		const event= d.length ? new CustomEvent(name, oAssign({ detail: d[0] }, options)) : new Event(name, options);
 		return element.dispatchEvent(event);
 	};
 }
+
+/**
+ * Creates a function to register event listeners on elements
+ *
+ * @param {string} event - Event name
+ * @param {Function} listener - Event handler
+ * @param {Object} [options] - Event listener options
+ * @returns {Function} Function that registers the listener
+ */
 export function on(event, listener, options){
 	return function registerElement(element){
 		element.addEventListener(event, listener, options);
@@ -21,10 +39,23 @@ export function on(event, listener, options){
 }
 
 import { c_ch_o } from "./events-observer.js";
-import { onAbort } from './helpers.js';
-const lifeOptions= obj=> Object.assign({}, typeof obj==="object" ? obj : null, { once: true });
+
+/**
+ * Prepares lifecycle event options with once:true default
+ * @private
+ */
+const lifeOptions= obj=> oAssign({}, typeof obj==="object" ? obj : null, { once: true });
+
 //TODO: cleanUp when event before abort?
 //TODO: docs (e.g.) https://nolanlawson.com/2024/01/13/web-component-gotcha-constructor-vs-connectedcallback/
+
+/**
+ * Creates a function to register connected lifecycle event listeners
+ *
+ * @param {Function} listener - Event handler
+ * @param {Object} [options] - Event listener options
+ * @returns {Function} Function that registers the connected listener
+ */
 on.connected= function(listener, options){
 	options= lifeOptions(options);
 	return function registerElement(element){
@@ -37,6 +68,14 @@ on.connected= function(listener, options){
 		return element;
 	};
 };
+
+/**
+ * Creates a function to register disconnected lifecycle event listeners
+ *
+ * @param {Function} listener - Event handler
+ * @param {Object} [options] - Event listener options
+ * @returns {Function} Function that registers the disconnected listener
+ */
 on.disconnected= function(listener, options){
 	options= lifeOptions(options);
 	return function registerElement(element){
@@ -48,7 +87,16 @@ on.disconnected= function(listener, options){
 		return element;
 	};
 };
+
+/** Store for disconnect abort controllers */
 const store_abort= new WeakMap();
+
+/**
+ * Creates an AbortController that triggers when the element disconnects
+ *
+ * @param {Element|Function} host - Host element or function taking an element
+ * @returns {AbortController} AbortController that aborts on disconnect
+ */
 on.disconnectedAsAbort= function(host){
 	if(store_abort.has(host)) return store_abort.get(host);
 
@@ -57,7 +105,17 @@ on.disconnectedAsAbort= function(host){
 	host(on.disconnected(()=> a.abort()));
 	return a;
 };
+
+/** Store for elements with attribute observers */
 const els_attribute_store= new WeakSet();
+
+/**
+ * Creates a function to register attribute change event listeners
+ *
+ * @param {Function} listener - Event handler
+ * @param {Object} [options] - Event listener options
+ * @returns {Function} Function that registers the attribute change listener
+ */
 on.attributeChanged= function(listener, options){
 	if(typeof options !== "object")
 		options= {};

src/helpers.js

@@ -1,13 +1,43 @@
+/**
+ * Safe method to check if an object has a specific property
+ * @param {...any} a - Arguments to pass to Object.prototype.hasOwnProperty.call
+ * @returns {boolean} Result of hasOwnProperty check
+ */
 export const hasOwn= (...a)=> Object.prototype.hasOwnProperty.call(...a);
+
+/**
+ * Checks if a value is undefined
+ * @param {any} value - The value to check
+ * @returns {boolean} True if the value is undefined
+ */
 export function isUndef(value){ return typeof value==="undefined"; }
+
+/**
+ * Enhanced typeof that handles null and objects better
+ * @param {any} v - The value to check
+ * @returns {string} Type as a string
+ */
 export function typeOf(v){
 	const t= typeof v;
 	if(t!=="object") return t;
 	if(v===null) return "null";
 	return Object.prototype.toString.call(v);
 }
+
+export function isInstance(obj, cls){ return obj instanceof cls; }
+/** @type {typeof Object.prototype.isPrototypeOf.call} */
+export function isProtoFrom(obj, cls){ return Object.prototype.isPrototypeOf.call(cls, obj); }
+export function oCreate(proto= null, p= {}){ return Object.create(proto, p); }
+export function oAssign(...o){ return Object.assign(...o); }
+
+/**
+ * Handles AbortSignal registration and cleanup
+ * @param {AbortSignal} signal - The AbortSignal to listen to
+ * @param {Function} listener - The abort event listener
+ * @returns {Function|undefined|boolean} Cleanup function or undefined if already aborted
+ */
 export function onAbort(signal, listener){
-	if(!signal || !(signal instanceof AbortSignal))
+	if(!signal || !isInstance(signal, AbortSignal))
 		return true;
 	if(signal.aborted)
 		return;
@@ -16,6 +46,13 @@ export function onAbort(signal, listener){
 		signal.removeEventListener("abort", listener);
 	};
 }
+
+/**
+ * Processes observed attributes for custom elements
+ * @param {object} instance - The custom element instance
+ * @param {Function} observedAttribute - Function to process each attribute
+ * @returns {object} Object with processed attributes
+ */
 export function observedAttributes(instance, observedAttribute){
 	const { observedAttributes= [] }= instance.constructor;
 	return observedAttributes
@@ -24,4 +61,28 @@ export function observedAttributes(instance, observedAttribute){
 			return out;
 		}, {});
 }
+
+/**
+ * Converts kebab-case strings to camelCase
+ * @param {string} name - The kebab-case string
+ * @returns {string} The camelCase string
+ */
 function kebabToCamel(name){ return name.replace(/-./g, x=> x[1].toUpperCase()); }
+
+/**
+ * Error class for definition tracking
+ * Shows the correct stack trace for debugging (signal) creation
+ */
+export class Defined extends Error{
+	constructor(){
+		super();
+		const [ curr, ...rest ]= this.stack.split("\n");
+		const curr_file= curr.slice(curr.indexOf("@"), curr.indexOf(".js:")+4);
+		const curr_lib= curr_file.includes("src/helpers.js") ? "src/" : curr_file;
+		this.stack= rest.find(l=> !l.includes(curr_lib)) || curr;
+	}
+	get compact(){
+		const { stack }= this;
+		return stack.slice(0, stack.indexOf("@")+1)+"…"+stack.slice(stack.lastIndexOf("/"));
+	}
+}

src/observables-lib.js

@@ -1,292 +0,0 @@
-export const mark= "__dde_signal";
-import { hasOwn } from "./helpers.js";
-
-export function isSignal(candidate){
-	try{ return hasOwn(candidate, mark); }
-	catch(e){ return false; }
-}
-/** @type {function[]} */
-const stack_watch= [];
-/**
- * ### `WeakMap<function, Set<ddeSignal<any, any>>>`
- * The `Set` is in the form of `[ source, ...depended signals (DSs) ]`.
- * When the DS is cleaned (`S.clear`) it is removed from DSs,
- * if remains only one (`source`) it is cleared too.
- * ### `WeakMap<object, function>`
- * This is used for revesed deps, the `function` is also key for `deps`.
- * @type {WeakMap<function|object,Set<ddeSignal<any, any>>|function>}
- * */
-const deps= new WeakMap();
-export function signal(value, actions){
-	if(typeof value!=="function")
-		return create(false, value, actions);
-	if(isSignal(value)) return value;
-
-	const out= create(true);
-	const contextReWatch= function(){
-		const [ origin, ...deps_old ]= deps.get(contextReWatch);
-		deps.set(contextReWatch, new Set([ origin ]));
-
-		stack_watch.push(contextReWatch);
-		write(out, value());
-		stack_watch.pop();
-
-		if(!deps_old.length) return;
-		const deps_curr= deps.get(contextReWatch);
-		for (const dep_signal of deps_old){
-			if(deps_curr.has(dep_signal)) continue;
-			removeSignalListener(dep_signal, contextReWatch);
-		}
-	};
-	deps.set(out[mark], contextReWatch);
-	deps.set(contextReWatch, new Set([ out ]));
-	contextReWatch();
-	return out;
-}
-export { signal as S };
-signal.action= function(s, name, ...a){
-	const M= s[mark], { actions }= M;
-	if(!actions || !(name in actions))
-		throw new Error(`'${s}' has no action with name '${name}'!`);
-	actions[name].apply(M, a);
-	if(M.skip) return (delete M.skip);
-	M.listeners.forEach(l=> l(M.value));
-};
-signal.on= function on(s, listener, options= {}){
-	const { signal: as }= options;
-	if(as && as.aborted) return;
-	if(Array.isArray(s)) return s.forEach(s=> on(s, listener, options));
-	addSignalListener(s, listener);
-	if(as) as.addEventListener("abort", ()=> removeSignalListener(s, listener));
-	//TODO: cleanup when signal removed
-};
-signal.symbols= {
-	//signal: mark,
-	onclear: Symbol.for("Signal.onclear")
-};
-signal.clear= function(...signals){
-	for(const s of signals){
-		const M= s[mark];
-		if(!M) continue;
-		delete s.toJSON;
-		M.onclear.forEach(f=> f.call(M));
-		clearListDeps(s, M);
-		delete s[mark];
-	}
-	function clearListDeps(s, o){
-		o.listeners.forEach(l=> {
-			o.listeners.delete(l);
-			if(!deps.has(l)) return;
-
-			const ls= deps.get(l);
-			ls.delete(s);
-			if(ls.size>1) return;
-
-			s.clear(...ls);
-			deps.delete(l);
-		});
-	}
-};
-const key_reactive= "__dde_reactive";
-import { enviroment as env } from "./dom-common.js";
-import { el } from "./dom.js";
-import { scope } from "./dom.js";
-// TODO: third argument for handle `cache_tmp` in re-render
-signal.el= function(s, map){
-	const mark_start= el.mark({ type: "reactive" }, true);
-	const mark_end= mark_start.end;
-	const out= env.D.createDocumentFragment();
-	out.append(mark_start, mark_end);
-	const { current }= scope;
-	let cache= {};
-	const reRenderReactiveElement= v=> {
-		if(!mark_start.parentNode || !mark_end.parentNode) // === `isConnected` or wasn’t yet rendered
-			return removeSignalListener(s, reRenderReactiveElement);
-		const cache_tmp= cache; // will be reused in the useCache or removed in the while loop on the end
-		cache= {};
-		scope.push(current);
-		let els= map(v, function useCache(key, fun){
-			let value;
-			if(hasOwn(cache_tmp, key)){
-				value= cache_tmp[key];
-				delete cache_tmp[key];
-			} else
-				value= fun();
-			cache[key]= value;
-			return value;
-		});
-		scope.pop();
-		if(!Array.isArray(els))
-			els= [ els ];
-		const el_start_rm= document.createComment("");
-		els.push(el_start_rm);
-		mark_start.after(...els);
-		let el_r;
-		while(( el_r= el_start_rm.nextSibling ) && el_r !== mark_end)
-			el_r.remove();
-		el_start_rm.remove();
-		if(mark_start.isConnected)
-			requestCleanUpReactives(current.host());
-	};
-	addSignalListener(s, reRenderReactiveElement);
-	removeSignalsFromElements(s, reRenderReactiveElement, mark_start, map);
-	reRenderReactiveElement(s());
-	return out;
-};
-function requestCleanUpReactives(host){
-	if(!host || !host[key_reactive]) return;
-	(requestIdleCallback || setTimeout)(function(){
-		host[key_reactive]= host[key_reactive]
-			.filter(([ s, el ])=> el.isConnected ? true : (removeSignalListener(...s), false));
-	});
-}
-import { on } from "./events.js";
-import { observedAttributes } from "./helpers.js";
-const observedAttributeActions= {
-	_set(value){ this.value= value; },
-};
-function observedAttribute(store){
-	return function(instance, name){
-		const varS= (...args)=> !args.length
-			? read(varS)
-			: instance.setAttribute(name, ...args);
-		const out= toSignal(varS, instance.getAttribute(name), observedAttributeActions);
-		store[name]= out;
-		return out;
-	};
-}
-const key_attributes= "__dde_attributes";
-signal.observedAttributes= function(element){
-	const store= element[key_attributes]= {};
-	const attrs= observedAttributes(element, observedAttribute(store));
-	on.attributeChanged(function attributeChangeToSignal({ detail }){
-		/*! This maps attributes to signals (`S.observedAttributes`).
-			* Investigate `__dde_attributes` key of the element.*/
-		const [ name, value ]= detail;
-		const curr= this[key_attributes][name];
-		if(curr) return signal.action(curr, "_set", value);
-	})(element);
-	on.disconnected(function(){
-		/*! This removes all signals mapped to attributes (`S.observedAttributes`).
-			* Investigate `__dde_attributes` key of the element.*/
-		signal.clear(...Object.values(this[key_attributes]));
-	})(element);
-	return attrs;
-};
-
-import { typeOf } from './helpers.js';
-export const signals_config= {
-	isSignal,
-	processReactiveAttribute(element, key, attrs, set){
-		if(!isSignal(attrs)) return attrs;
-		const l= attr=> {
-			if(!element.isConnected)
-				return removeSignalListener(attrs, l);
-			set(key, attr);
-		};
-		addSignalListener(attrs, l);
-		removeSignalsFromElements(attrs, l, element, key);
-		return attrs();
-	}
-};
-function removeSignalsFromElements(s, listener, ...notes){
-	const { current }= scope;
-	if(current.prevent) return;
-	current.host(function(element){
-		if(!element[key_reactive]){
-			element[key_reactive]= [];
-			on.disconnected(()=>
-				/*!
-				 * Clears all Signals listeners added in the current scope/host (`S.el`, `assign`, …?).
-				 * You can investigate the `__dde_reactive` key of the element.
-				 * */
-				element[key_reactive].forEach(([ [ s, listener ] ])=>
-					removeSignalListener(s, listener, s[mark] && s[mark].host && s[mark].host() === element))
-			)(element);
-		}
-		element[key_reactive].push([ [ s, listener ], ...notes ]);
-	});
-}
-
-function create(is_readonly, value, actions){
-	const varS= is_readonly
-		? ()=> read(varS)
-		: (...value)=> value.length ? write(varS, ...value) : read(varS);
-	return toSignal(varS, value, actions, is_readonly);
-}
-const protoSigal= Object.assign(Object.create(null), {
-	stopPropagation(){
-		this.skip= true;
-	}
-});
-class SignalDefined extends Error{
-	constructor(){
-		super();
-		const [ curr, ...rest ]= this.stack.split("\n");
-		const curr_file= curr.slice(curr.indexOf("@"), curr.indexOf(".js:")+4);
-		this.stack= rest.find(l=> !l.includes(curr_file));
-	}
-}
-function toSignal(s, value, actions, readonly= false){
-	const onclear= [];
-	if(typeOf(actions)!=="[object Object]")
-		actions= {};
-	const { onclear: ocs }= signal.symbols;
-	if(actions[ocs]){
-		onclear.push(actions[ocs]);
-		delete actions[ocs];
-	}
-	const { host }= scope;
-	Reflect.defineProperty(s, mark, {
-		value: {
-			value, actions, onclear, host,
-			listeners: new Set(),
-			defined: (new SignalDefined()).stack,
-			readonly
-		},
-		enumerable: false,
-		writable: false,
-		configurable: true
-	});
-	s.toJSON= ()=> s();
-	s.valueOf= ()=> s[mark] && s[mark].value;
-	Object.setPrototypeOf(s[mark], protoSigal);
-	return s;
-}
-function currentContext(){
-	return stack_watch[stack_watch.length - 1];
-}
-function read(s){
-	if(!s[mark]) return;
-	const { value, listeners }= s[mark];
-	const context= currentContext();
-	if(context) listeners.add(context);
-	if(deps.has(context)) deps.get(context).add(s);
-	return value;
-}
-function write(s, value, force){
-	if(!s[mark]) return;
-	const M= s[mark];
-	if(!force && M.value===value) return;
-	M.value= value;
-	M.listeners.forEach(l=> l(value));
-	return value;
-}
-
-function addSignalListener(s, listener){
-	if(!s[mark]) return;
-	return s[mark].listeners.add(listener);
-}
-function removeSignalListener(s, listener, clear_when_empty){
-	const M= s[mark];
-	if(!M) return;
-	const out= M.listeners.delete(listener);
-	if(clear_when_empty && !M.listeners.size){
-		signal.clear(s);
-		if(!deps.has(M)) return out;
-		const c= deps.get(M);
-		if(!deps.has(c)) return out;
-		deps.get(c).forEach(sig=> removeSignalListener(sig, c, true));
-	}
-	return out;
-}

src/signals-common.js

@@ -1,13 +0,0 @@
-export const signals_global= {
-	isSignal(attributes){ return false; },
-	processReactiveAttribute(obj, key, attr, set){ return attr; },
-};
-export function registerReactivity(def, global= true){
-	if(global) return Object.assign(signals_global, def);
-	Object.setPrototypeOf(def, signals_global);
-	return def;
-}
-/** @param {unknown} _this @returns {typeof signals_global} */
-export function signals(_this){
-	return signals_global.isPrototypeOf(_this) && _this!==signals_global ? _this : signals_global;
-}

src/signals-lib.js

@@ -1,293 +0,0 @@
-export const mark= "__dde_signal";
-import { hasOwn } from "./helpers.js";
-
-export function isSignal(candidate){
-	try{ return hasOwn(candidate, mark); }
-	catch(e){ return false; }
-}
-/** @type {function[]} */
-const stack_watch= [];
-/**
- * ### `WeakMap<function, Set<ddeSignal<any, any>>>`
- * The `Set` is in the form of `[ source, ...depended signals (DSs) ]`.
- * When the DS is cleaned (`S.clear`) it is removed from DSs,
- * if remains only one (`source`) it is cleared too.
- * ### `WeakMap<object, function>`
- * This is used for revesed deps, the `function` is also key for `deps`.
- * @type {WeakMap<function|object,Set<ddeSignal<any, any>>|function>}
- * */
-const deps= new WeakMap();
-export function signal(value, actions){
-	if(typeof value!=="function")
-		return create(false, value, actions);
-	if(isSignal(value)) return value;
-
-	const out= create(true);
-	const contextReWatch= function(){
-		const [ origin, ...deps_old ]= deps.get(contextReWatch);
-		deps.set(contextReWatch, new Set([ origin ]));
-
-		stack_watch.push(contextReWatch);
-		write(out, value());
-		stack_watch.pop();
-
-		if(!deps_old.length) return;
-		const deps_curr= deps.get(contextReWatch);
-		for (const dep_signal of deps_old){
-			if(deps_curr.has(dep_signal)) continue;
-			removeSignalListener(dep_signal, contextReWatch);
-		}
-	};
-	deps.set(out[mark], contextReWatch);
-	deps.set(contextReWatch, new Set([ out ]));
-	contextReWatch();
-	return out;
-}
-export { signal as S };
-signal.action= function(s, name, ...a){
-	const M= s[mark], { actions }= M;
-	if(!actions || !(name in actions))
-		throw new Error(`'${s}' has no action with name '${name}'!`);
-	actions[name].apply(M, a);
-	if(M.skip) return (delete M.skip);
-	M.listeners.forEach(l=> l(M.value));
-};
-signal.on= function on(s, listener, options= {}){
-	const { signal: as }= options;
-	if(as && as.aborted) return;
-	if(Array.isArray(s)) return s.forEach(s=> on(s, listener, options));
-	addSignalListener(s, listener);
-	if(as) as.addEventListener("abort", ()=> removeSignalListener(s, listener));
-	//TODO: cleanup when signal removed
-};
-signal.symbols= {
-	//signal: mark,
-	onclear: Symbol.for("Signal.onclear")
-};
-signal.clear= function(...signals){
-	for(const s of signals){
-		const M= s[mark];
-		if(!M) continue;
-		delete s.toJSON;
-		M.onclear.forEach(f=> f.call(M));
-		clearListDeps(s, M);
-		delete s[mark];
-	}
-	function clearListDeps(s, o){
-		o.listeners.forEach(l=> {
-			o.listeners.delete(l);
-			if(!deps.has(l)) return;
-
-			const ls= deps.get(l);
-			ls.delete(s);
-			if(ls.size>1) return;
-
-			s.clear(...ls);
-			deps.delete(l);
-		});
-	}
-};
-const key_reactive= "__dde_reactive";
-import { enviroment as env } from "./dom-common.js";
-import { el } from "./dom.js";
-import { scope } from "./dom.js";
-// TODO: third argument for handle `cache_tmp` in re-render
-// TODO: clear cache on disconnect
-// TODO: extract cache to separate (exportable) function
-signal.el= function(s, map){
-	const mark_start= el.mark({ type: "reactive" }, true);
-	const mark_end= mark_start.end;
-	const out= env.D.createDocumentFragment();
-	out.append(mark_start, mark_end);
-	const { current }= scope;
-	let cache= {};
-	const reRenderReactiveElement= v=> {
-		if(!mark_start.parentNode || !mark_end.parentNode) // === `isConnected` or wasn’t yet rendered
-			return removeSignalListener(s, reRenderReactiveElement);
-		const cache_tmp= cache; // will be reused in the useCache or removed in the while loop on the end
-		cache= {};
-		scope.push(current);
-		let els= map(v, function useCache(key, fun){
-			let value;
-			if(hasOwn(cache_tmp, key)){
-				value= cache_tmp[key];
-				delete cache_tmp[key];
-			} else
-				value= fun();
-			cache[key]= value;
-			return value;
-		});
-		scope.pop();
-		if(!Array.isArray(els))
-			els= [ els ];
-		const el_start_rm= document.createComment("");
-		els.push(el_start_rm);
-		mark_start.after(...els);
-		let el_r;
-		while(( el_r= el_start_rm.nextSibling ) && el_r !== mark_end)
-			el_r.remove();
-		el_start_rm.remove();
-		if(mark_start.isConnected)
-			requestCleanUpReactives(current.host());
-	};
-	addSignalListener(s, reRenderReactiveElement);
-	removeSignalsFromElements(s, reRenderReactiveElement, mark_start, map);
-	reRenderReactiveElement(s());
-	return out;
-};
-function requestCleanUpReactives(host){
-	if(!host || !host[key_reactive]) return;
-	(requestIdleCallback || setTimeout)(function(){
-		host[key_reactive]= host[key_reactive]
-			.filter(([ s, el ])=> el.isConnected ? true : (removeSignalListener(...s), false));
-	});
-}
-import { on } from "./events.js";
-import { observedAttributes } from "./helpers.js";
-const observedAttributeActions= {
-	_set(value){ this.value= value; },
-};
-function observedAttribute(store){
-	return function(instance, name){
-		const varS= (...args)=> !args.length
-			? read(varS)
-			: instance.setAttribute(name, ...args);
-		const out= toSignal(varS, instance.getAttribute(name), observedAttributeActions);
-		store[name]= out;
-		return out;
-	};
-}
-const key_attributes= "__dde_attributes";
-signal.observedAttributes= function(element){
-	const store= element[key_attributes]= {};
-	const attrs= observedAttributes(element, observedAttribute(store));
-	on.attributeChanged(function attributeChangeToSignal({ detail }){
-		/*! This maps attributes to signals (`S.observedAttributes`).
-			* Investigate `__dde_attributes` key of the element.*/
-		const [ name, value ]= detail;
-		const curr= this[key_attributes][name];
-		if(curr) return signal.action(curr, "_set", value);
-	})(element);
-	on.disconnected(function(){
-		/*! This removes all signals mapped to attributes (`S.observedAttributes`).
-			* Investigate `__dde_attributes` key of the element.*/
-		signal.clear(...Object.values(this[key_attributes]));
-	})(element);
-	return attrs;
-};
-
-import { typeOf } from './helpers.js';
-export const signals_config= {
-	isSignal,
-	processReactiveAttribute(element, key, attrs, set){
-		if(!isSignal(attrs)) return attrs;
-		const l= attr=> {
-			if(!element.isConnected)
-				return removeSignalListener(attrs, l);
-			set(key, attr);
-		};
-		addSignalListener(attrs, l);
-		removeSignalsFromElements(attrs, l, element, key);
-		return attrs();
-	}
-};
-function removeSignalsFromElements(s, listener, ...notes){
-	const { current }= scope;
-	current.host(function(element){
-		if(element[key_reactive])
-			return element[key_reactive].push([ [ s, listener ], ...notes ]);
-		element[key_reactive]= [];
-		if(current.prevent) return; // typically document.body, doenst need auto-remove as it should happen on page leave
-		on.disconnected(()=>
-			/*!
-				* Clears all Signals listeners added in the current scope/host (`S.el`, `assign`, …?).
-				* You can investigate the `__dde_reactive` key of the element.
-				* */
-			element[key_reactive].forEach(([ [ s, listener ] ])=>
-				removeSignalListener(s, listener, s[mark] && s[mark].host && s[mark].host() === element))
-		)(element);
-	});
-}
-
-function create(is_readonly, value, actions){
-	const varS= is_readonly
-		? ()=> read(varS)
-		: (...value)=> value.length ? write(varS, ...value) : read(varS);
-	return toSignal(varS, value, actions, is_readonly);
-}
-const protoSigal= Object.assign(Object.create(null), {
-	stopPropagation(){
-		this.skip= true;
-	}
-});
-class SignalDefined extends Error{
-	constructor(){
-		super();
-		const [ curr, ...rest ]= this.stack.split("\n");
-		const curr_file= curr.slice(curr.indexOf("@"), curr.indexOf(".js:")+4);
-		this.stack= rest.find(l=> !l.includes(curr_file));
-	}
-}
-function toSignal(s, value, actions, readonly= false){
-	const onclear= [];
-	if(typeOf(actions)!=="[object Object]")
-		actions= {};
-	const { onclear: ocs }= signal.symbols;
-	if(actions[ocs]){
-		onclear.push(actions[ocs]);
-		delete actions[ocs];
-	}
-	const { host }= scope;
-	Reflect.defineProperty(s, mark, {
-		value: {
-			value, actions, onclear, host,
-			listeners: new Set(),
-			defined: (new SignalDefined()).stack,
-			readonly
-		},
-		enumerable: false,
-		writable: false,
-		configurable: true
-	});
-	s.toJSON= ()=> s();
-	s.valueOf= ()=> s[mark] && s[mark].value;
-	Object.setPrototypeOf(s[mark], protoSigal);
-	return s;
-}
-function currentContext(){
-	return stack_watch[stack_watch.length - 1];
-}
-function read(s){
-	if(!s[mark]) return;
-	const { value, listeners }= s[mark];
-	const context= currentContext();
-	if(context) listeners.add(context);
-	if(deps.has(context)) deps.get(context).add(s);
-	return value;
-}
-function write(s, value, force){
-	if(!s[mark]) return;
-	const M= s[mark];
-	if(!force && M.value===value) return;
-	M.value= value;
-	M.listeners.forEach(l=> l(value));
-	return value;
-}
-
-function addSignalListener(s, listener){
-	if(!s[mark]) return;
-	return s[mark].listeners.add(listener);
-}
-function removeSignalListener(s, listener, clear_when_empty){
-	const M= s[mark];
-	if(!M) return;
-	const out= M.listeners.delete(listener);
-	if(clear_when_empty && !M.listeners.size){
-		signal.clear(s);
-		if(!deps.has(M)) return out;
-		const c= deps.get(M);
-		if(!deps.has(c)) return out;
-		deps.get(c).forEach(sig=> removeSignalListener(sig, c, true));
-	}
-	return out;
-}

src/signals-lib/common.js

@@ -0,0 +1,44 @@
+import { isProtoFrom, oAssign } from "../helpers.js";
+/**
+ * Global signals object with default implementation
+ * @type {Object}
+ */
+export const signals_global= {
+	/**
+	 * Checks if a value is a signal
+	 * @param {any} attributes - Value to check
+	 * @returns {boolean} Whether the value is a signal
+	 */
+	isSignal(attributes){ return false; },
+
+	/**
+	 * Processes an attribute that might be reactive
+	 * @param {Element} obj - Element that owns the attribute
+	 * @param {string} key - Attribute name
+	 * @param {any} attr - Attribute value
+	 * @param {Function} set - Function to set the attribute
+	 * @returns {any} Processed attribute value
+	 */
+	processReactiveAttribute(obj, key, attr, set){ return attr; },
+};
+
+/**
+ * Registers a reactivity implementation
+ * @param {Object} def - Reactivity implementation
+ * @param {boolean} [global=true] - Whether to set globally or create a new implementation
+ * @returns {Object} The registered reactivity implementation
+ */
+export function registerReactivity(def, global= true){
+	if(global) return oAssign(signals_global, def);
+	Object.setPrototypeOf(def, signals_global);
+	return def;
+}
+
+/**
+ * Gets the signals implementation from a context
+ * @param {unknown} _this - Context to check for signals implementation
+ * @returns {typeof signals_global} Signals implementation
+ */
+export function signals(_this){
+	return isProtoFrom(_this, signals_global) && _this!==signals_global ? _this : signals_global;
+}

src/signals-lib/helpers.js

@@ -0,0 +1,39 @@
+/**
+ * Symbol used to identify signals in objects
+ * @type {string}
+ */
+export const mark= "__dde_signal";
+
+/**
+ * Batches signal updates to improve performance
+ * @type {Function}
+ */
+export const queueSignalWrite= (()=> {
+	let pendingSignals= new Set();
+	let scheduled= false;
+
+	/**
+	 * Processes all pending signal updates
+	 * @private
+	 */
+	function flushSignals() {
+		scheduled = false;
+		const todo= pendingSignals;
+		pendingSignals= new Set();
+		for(const signal of todo){
+			const M = signal[mark];
+			if(M) M.listeners.forEach(l => l(M.value));
+		}
+	}
+
+	/**
+	 * Queues a signal for update
+	 * @param {Object} s - Signal to queue
+	 */
+	return function(s){
+		pendingSignals.add(s);
+		if(scheduled) return;
+		scheduled = true;
+		queueMicrotask(flushSignals);
+	};
+})();

src/signals-lib/signals-lib.d.ts

@@ -1,4 +1,4 @@
-import type { Action, Actions, signal as s, Signal, SymbolOnclear } from "../signals.d.ts";
+import type { Action, Actions, signal as s, Signal, SymbolOnclear } from "../../signals.js";
 export { Action, Actions, Signal, SymbolOnclear };
 export const S: s;
 export const signal: s;

src/signals-lib/signals-lib.js

@@ -0,0 +1,487 @@
+import { queueSignalWrite, mark } from "./helpers.js";
+export { mark };
+import { hasOwn, Defined, oCreate, isProtoFrom, oAssign } from "../helpers.js";
+
+const Signal = oCreate(null, {
+	get: { value(){ return read(this); } },
+	set: { value(...v){ return write(this, ...v); } },
+	toJSON: { value(){ return read(this); } },
+	valueOf: { value(){ return this[mark] && this[mark].value; } }
+});
+const SignalReadOnly= oCreate(Signal, {
+	set: { value(){ return; } },
+});
+/**
+ * Checks if a value is a signal
+ *
+ * @param {any} candidate - Value to check
+ * @returns {boolean} True if the value is a signal
+ */
+export function isSignal(candidate){
+	return isProtoFrom(candidate, Signal);
+}
+
+/**
+ * Stack for tracking nested signal computations
+ * @type {function[]}
+ */
+const stack_watch= [];
+
+/**
+ * Dependencies tracking map for signals
+ *
+ * ### `WeakMap<function, Set<ddeSignal<any, any>>>`
+ * The `Set` is in the form of `[ source, ...depended signals (DSs) ]`.
+ * When the DS is cleaned (`S.clear`) it is removed from DSs,
+ * if remains only one (`source`) it is cleared too.
+ * ### `WeakMap<object, function>`
+ * This is used for revesed deps, the `function` is also key for `deps`.
+ * @type {WeakMap<function|object,Set<ddeSignal<any, any>>|function>}
+ */
+const deps= new WeakMap();
+/**
+ * Creates a new signal or converts a function into a derived signal
+ *
+ * @param {any|function} value - Initial value or function that computes the value
+ * @param {Object} [actions] - Custom actions for the signal
+ * @returns {Object} Signal object with get() and set() methods
+ */
+export function signal(value, actions){
+	if(typeof value!=="function")
+		return create(false, value, actions);
+	if(isSignal(value)) return value;
+
+	const out= create(true);
+
+	/**
+	 * Updates the derived signal when dependencies change
+	 * @private
+	 */
+	function contextReWatch(){
+		const [ origin, ...deps_old ]= deps.get(contextReWatch);
+		deps.set(contextReWatch, new Set([ origin ]));
+
+		stack_watch.push(contextReWatch);
+		write(out, value());
+		stack_watch.pop();
+
+		if(!deps_old.length) return;
+		const deps_curr= deps.get(contextReWatch);
+		for (const dep_signal of deps_old){
+			if(deps_curr.has(dep_signal)) continue;
+			removeSignalListener(dep_signal, contextReWatch);
+		}
+	}
+	deps.set(out[mark], contextReWatch);
+	deps.set(contextReWatch, new Set([ out ]));
+	contextReWatch();
+	return out;
+}
+
+/** Alias for signal */
+export { signal as S };
+/**
+ * Calls a custom action on a signal
+ *
+ * @param {Object} s - Signal object to call action on
+ * @param {string} name - Action name
+ * @param {...any} a - Arguments to pass to the action
+ */
+signal.action= function(s, name, ...a){
+	const M= s[mark];
+	if(!M) return;
+	const { actions }= M;
+	if(!actions || !hasOwn(actions, name))
+		throw new Error(`Action "${name}" not defined. See ${mark}.actions.`);
+	actions[name].apply(M, a);
+	if(M.skip) return (delete M.skip);
+	queueSignalWrite(s);
+};
+
+/**
+ * Subscribes a listener to signal changes
+ *
+ * @param {Object|Object[]} s - Signal object or array of signal objects to subscribe to
+ * @param {function} listener - Callback function receiving signal value
+ * @param {Object} [options={}] - Subscription options
+ * @param {AbortSignal} [options.signal] - Signal to abort subscription
+ */
+signal.on= function on(s, listener, options= {}){
+	const { signal: as }= options;
+	if(as && as.aborted) return;
+	if(Array.isArray(s)) return s.forEach(s=> on(s, listener, options));
+	addSignalListener(s, listener);
+	if(as) as.addEventListener("abort", ()=> removeSignalListener(s, listener));
+};
+
+/**
+ * Symbol constants for signal internals
+ */
+signal.symbols= {
+	//signal: mark,
+	onclear: Symbol.for("Signal.onclear")
+};
+
+/**
+ * Cleans up signals and their dependencies
+ *
+ * @param {...Object} signals - Signal objects to clean up
+ */
+signal.clear= function(...signals){
+	for(const s of signals){
+		const M= s[mark];
+		if(!M) continue;
+		delete s.toJSON;
+		M.onclear.forEach(f=> f.call(M));
+		clearListDeps(s, M);
+		delete s[mark];
+	}
+
+	/**
+	 * Cleans up signal dependencies
+	 * @param {function} s - Signal being cleared
+	 * @param {Object} o - Signal metadata
+	 * @private
+	 */
+	function clearListDeps(s, o){
+		o.listeners.forEach(l=> {
+			o.listeners.delete(l);
+			if(!deps.has(l)) return;
+
+			const ls= deps.get(l);
+			ls.delete(s);
+			if(ls.size>1) return;
+
+			s.clear(...ls);
+			deps.delete(l);
+		});
+	}
+};
+/** Property key for tracking reactive elements */
+const key_reactive= "__dde_reactive";
+import { enviroment as env } from "../dom-common.js";
+import { el } from "../dom.js";
+import { scope } from "../dom.js";
+import { on } from "../events.js";
+
+export function cache(store= oCreate()){
+	return (key, fun)=> hasOwn(store, key) ? store[key] : (store[key]= fun());
+}
+/**
+ * Creates a reactive DOM element that re-renders when signal changes
+ *
+ * @TODO Third argument for handle `cache_tmp` in re-render
+ * @param {Object} s - Signal object to watch
+ * @param {Function} map - Function mapping signal value to DOM elements
+ * @returns {DocumentFragment} Fragment containing reactive elements
+ */
+signal.el= function(s, map){
+	const mark_start= el.mark({ type: "reactive", source: new Defined().compact }, true);
+	const mark_end= mark_start.end;
+	const out= env.D.createDocumentFragment();
+	out.append(mark_start, mark_end);
+	const { current }= scope;
+	let cache_shared= oCreate();
+	const reRenderReactiveElement= v=> {
+		if(!mark_start.parentNode || !mark_end.parentNode) // === `isConnected` or wasn’t yet rendered
+			return removeSignalListener(s, reRenderReactiveElement);
+		const memo= cache(cache_shared);
+		cache_shared= oCreate();
+		scope.push(current);
+		let els= map(v, function useCache(key, fun){
+			return (cache_shared[key]= memo(key, fun));
+		});
+		scope.pop();
+		if(!Array.isArray(els))
+			els= [ els ];
+		const el_start_rm= document.createComment("");
+		els.push(el_start_rm);
+		mark_start.after(...els);
+		let el_r;
+		while(( el_r= el_start_rm.nextSibling ) && el_r !== mark_end)
+			el_r.remove();
+		el_start_rm.remove();
+		if(mark_start.isConnected)
+			requestCleanUpReactives(current.host());
+	};
+	addSignalListener(s, reRenderReactiveElement);
+	removeSignalsFromElements(s, reRenderReactiveElement, mark_start, map);
+	reRenderReactiveElement(s.get());
+	current.host(on.disconnected(()=>
+		/*! Clears cached elements for reactive element `S.el` */
+		cache_shared= {}
+	));
+	return out;
+};
+/**
+ * Cleans up reactive elements that are no longer connected
+ *
+ * @param {Element} host - Host element containing reactive elements
+ * @private
+ */
+function requestCleanUpReactives(host){
+	if(!host || !host[key_reactive]) return;
+	(requestIdleCallback || setTimeout)(function(){
+		host[key_reactive]= host[key_reactive]
+			.filter(([ s, el ])=> el.isConnected ? true : (removeSignalListener(...s), false));
+	});
+}
+import { observedAttributes } from "../helpers.js";
+
+/**
+ * Actions for observed attribute signals
+ * @private
+ */
+const observedAttributeActions= {
+	_set(value){ this.value= value; },
+};
+
+/**
+ * Creates a function that returns signals for element attributes
+ *
+ * @param {Object} store - Storage object for attribute signals
+ * @returns {Function} Function creating attribute signals
+ * @private
+ */
+function observedAttribute(store){
+	return function(instance, name){
+		const varS= oCreate(Signal, {
+			set: { value(...v){ return instance.setAttribute(name, ...v); } }
+		});
+		const out= toSignal(varS, instance.getAttribute(name), observedAttributeActions);
+		store[name]= out;
+		return out;
+	};
+}
+/** Property key for storing attribute signals */
+const key_attributes= "__dde_attributes";
+
+/**
+ * Creates signals for observed attributes in custom elements
+ *
+ * @param {Element} element - Custom element instance
+ * @returns {Object} Object with attribute signals
+ */
+signal.observedAttributes= function(element){
+	const store= element[key_attributes]= {};
+	const attrs= observedAttributes(element, observedAttribute(store));
+	on.attributeChanged(function attributeChangeToSignal({ detail }){
+		/*! This maps attributes to signals (`S.observedAttributes`).
+			Investigate `__dde_attributes` key of the element. */
+		const [ name, value ]= detail;
+		const curr= this[key_attributes][name];
+		if(curr) return signal.action(curr, "_set", value);
+	})(element);
+	on.disconnected(function(){
+		/*! This removes all signals mapped to attributes (`S.observedAttributes`).
+			Investigate `__dde_attributes` key of the element. */
+		signal.clear(...Object.values(this[key_attributes]));
+	})(element);
+	return attrs;
+};
+
+import { typeOf } from '../helpers.js';
+
+/**
+ * Signal configuration for the library
+ * Implements processReactiveAttribute to handle signal-based attributes
+ */
+export const signals_config= {
+	isSignal,
+
+	/**
+	 * Processes attributes that might be signals
+	 *
+	 * @param {Element} element - Element with the attribute
+	 * @param {string} key - Attribute name
+	 * @param {any} attrs - Attribute value (possibly a signal)
+	 * @param {Function} set - Function to set attribute value
+	 * @returns {any} Processed attribute value
+	 */
+	processReactiveAttribute(element, key, attrs, set){
+		if(!isSignal(attrs)) return attrs;
+		const l= attr=> {
+			if(!element.isConnected)
+				return removeSignalListener(attrs, l);
+			set(key, attr);
+		};
+		addSignalListener(attrs, l);
+		removeSignalsFromElements(attrs, l, element, key);
+		return attrs.get();
+	}
+};
+/**
+ * Registers signal listener for cleanup when element is removed
+ *
+ * @param {Object} s - Signal object to track
+ * @param {Function} listener - Signal listener
+ * @param {...any} notes - Additional context information
+ * @private
+ */
+function removeSignalsFromElements(s, listener, ...notes){
+	const { current }= scope;
+	current.host(function(element){
+		if(element[key_reactive])
+			return element[key_reactive].push([ [ s, listener ], ...notes ]);
+		element[key_reactive]= [];
+		if(current.prevent) return; // typically document.body, doenst need auto-remove as it should happen on page leave
+		on.disconnected(()=>
+			/*! Clears all Signals listeners added in the current scope/host (`S.el`, `assign`, …?).
+				You can investigate the `__dde_reactive` key of the element. */
+			element[key_reactive].forEach(([ [ s, listener ] ])=>
+				removeSignalListener(s, listener, s[mark] && s[mark].host && s[mark].host() === element))
+		)(element);
+	});
+}
+
+/**
+ * Registry for cleaning up signals when they are garbage collected
+ * @type {FinalizationRegistry}
+ */
+const cleanUpRegistry = new FinalizationRegistry(function(s){
+	signal.clear({ [mark]: s });
+});
+/**
+ * Creates a new signal object
+ *
+ * @param {boolean} is_readonly - Whether the signal is readonly
+ * @param {any} value - Initial signal value
+ * @param {Object} actions - Custom actions for the signal
+ * @returns {Object} Signal object with get() and set() methods
+ * @private
+ */
+function create(is_readonly, value, actions){
+	const varS = oCreate(is_readonly ? SignalReadOnly : Signal);
+	const SI= toSignal(varS, value, actions, is_readonly);
+	cleanUpRegistry.register(SI, SI[mark]);
+	return SI;
+}
+
+/**
+ * Prototype for signal internal objects
+ * @private
+ */
+const protoSigal= oAssign(oCreate(), {
+	/**
+	 * Prevents signal propagation
+	 */
+	stopPropagation(){
+		this.skip= true;
+	}
+});
+/**
+ * Transforms an object into a signal
+ *
+ * @param {Object} s - Object to transform
+ * @param {any} value - Initial value
+ * @param {Object} actions - Custom actions
+ * @param {boolean} [readonly=false] - Whether the signal is readonly
+ * @returns {Object} Signal object with get() and set() methods
+ * @private
+ */
+function toSignal(s, value, actions, readonly= false){
+	const onclear= [];
+	if(typeOf(actions)!=="[object Object]")
+		actions= {};
+	const { onclear: ocs }= signal.symbols;
+	if(actions[ocs]){
+		onclear.push(actions[ocs]);
+		delete actions[ocs];
+	}
+	const { host }= scope;
+	Reflect.defineProperty(s, mark, {
+		value: oAssign(oCreate(protoSigal), {
+			value, actions, onclear, host,
+			listeners: new Set(),
+			defined: new Defined().stack,
+			readonly
+		}),
+		enumerable: false,
+		writable: false,
+		configurable: true
+	});
+	return s;
+}
+/**
+ * Gets the current computation context
+ * @returns {function|undefined} Current context function
+ * @private
+ */
+function currentContext(){
+	return stack_watch[stack_watch.length - 1];
+}
+
+/**
+ * Reads a signal's value and tracks dependencies
+ *
+ * @param {Object} s - Signal object to read
+ * @returns {any} Signal value
+ * @private
+ */
+function read(s){
+	if(!s[mark]) return;
+	const { value, listeners }= s[mark];
+	const context= currentContext();
+	if(context) listeners.add(context);
+	if(deps.has(context)) deps.get(context).add(s);
+	return value;
+}
+
+/**
+ * Writes a new value to a signal
+ *
+ * @param {Object} s - Signal object to update
+ * @param {any} value - New value
+ * @param {boolean} [force=false] - Force update even if value is unchanged
+ * @returns {any} The new value
+ * @private
+ */
+function write(s, value, force){
+	const M= s[mark];
+	if(!M || (!force && M.value===value)) return;
+
+	M.value= value;
+	queueSignalWrite(s);
+	return value;
+}
+
+/**
+ * Adds a listener to a signal
+ *
+ * @param {Object} s - Signal object to listen to
+ * @param {Function} listener - Callback function
+ * @returns {Set} Listener set
+ * @private
+ */
+function addSignalListener(s, listener){
+	if(!s[mark]) return;
+	return s[mark].listeners.add(listener);
+}
+
+/**
+ * Removes a listener from a signal
+ *
+ * @param {Object} s - Signal object to modify
+ * @param {Function} listener - Listener to remove
+ * @param {boolean} [clear_when_empty] - Whether to clear the signal when no listeners remain
+ * @returns {boolean} Whether the listener was found and removed
+ * @private
+ */
+function removeSignalListener(s, listener, clear_when_empty){
+	const M= s[mark];
+	if(!M) return;
+
+	const { listeners: L }= M;
+	const out= L.delete(listener);
+	if(!out || !clear_when_empty || L.size) return out;
+
+	signal.clear(s);
+	const depList= deps.get(M);
+	if(!depList) return out;
+
+	const depSource= deps.get(depList);
+	if(!depSource) return out;
+
+	for(const sig of depSource) removeSignalListener(sig, depList, true);
+	return out;
+}