// src/signals-common.js
var E = {
	isSignal(e) {
		return !1;
	},
	processReactiveAttribute(e, t, r, n) {
		return r;
	}
};
function N(e, t = !0) {
	return t ? Object.assign(E, e) : (Object.setPrototypeOf(e, E), e);
}
function m(e) {
	return E.isPrototypeOf(e) && e !== E ? e : E;
}

// src/helpers.js
function p(e) {
	return typeof e > "u";
}
function _(e, t) {
	if (!e || !(e instanceof AbortSignal))
		return !0;
	if (!e.aborted)
		return e.addEventListener("abort", t), function() {
			e.removeEventListener("abort", t);
		};
}

// src/dom-common.js
var O = { setDeleteAttr: P };
function P(e, t, r) {
	if (Reflect.set(e, t, r), !!p(r)) {
		if (Reflect.deleteProperty(e, t), e instanceof HTMLElement && e.getAttribute(t) === "undefined")
			return e.removeAttribute(t);
		if (Reflect.get(e, t) === "undefined")
			return Reflect.set(e, t, "");
	}
}

// src/dom.js
var h = "html", S = {
	elNamespace(e) {
		return h = e === "svg" ? "http://www.w3.org/2000/svg" : e, {
			append(...t) {
				return h = "html", t.length === 1 ? t[0] : document.createDocumentFragment().append(...t);
			}
		};
	},
	get namespace() {
		return h;
	},
	set namespace(e) {
		return h = e;
	}
}, H = Object.assign((e) => e ? e(document.body) : document.body, S);
function I(e, t, ...r) {
	let n = this, u = m(this), i;
	switch ((Object(t) !== t || u.isSignal(t)) && (t = { textContent: t }), !0) {
		case typeof e == "function": {
			let a = Object.assign((f) => f ? (r.unshift(f), void 0) : i, S);
			i = e(t || void 0, a), h = "html";
			break;
		}
		case e === "#text":
			i = w.call(n, document.createTextNode(""), t);
			break;
		case e === "<>":
			i = w.call(n, document.createDocumentFragment(), t);
			break;
		case h !== "html":
			i = w.call(n, document.createElementNS(h, e), t);
			break;
		case !i:
			i = w.call(n, document.createElement(e), t);
	}
	return r.forEach((a) => a(i)), i;
}
var { setDeleteAttr: R } = O;
function w(e, ...t) {
	let r = this, n = m(this);
	if (!t.length)
		return e;
	let i = (e instanceof SVGElement ? T : M).bind(null, e, "Attribute");
	return Object.entries(Object.assign({}, ...t)).forEach(function a([f, d]) {
		d = n.processReactiveAttribute(e, f, d, a);
		let [g] = f;
		if (g === "=")
			return i(f.slice(1), d);
		if (g === ".")
			return C(e, f.slice(1), d);
		if (/(aria|data)([A-Z])/.test(f))
			return f = f.replace(/([a-z])([A-Z])/g, "$1-$2").toLowerCase(), i(f, d);
		switch (f === "className" && (f = "class"), f) {
			case "xlink:href":
				return i(f, d, "http://www.w3.org/1999/xlink");
			case "textContent":
				return R(e, f, d);
			case "style":
				if (typeof d != "object")
					break;
			case "dataset":
				return A(n, d, C.bind(null, e[f]));
			case "ariaset":
				return A(n, d, (b, c) => i("aria-" + b, c));
			case "classList":
				return j.call(r, e, d);
		}
		return F(e, f) ? R(e, f, d) : i(f, d);
	}), e;
}
function j(e, t) {
	let r = m(this);
	return A(
		r,
		t,
		(n, u) => e.classList.toggle(n, u === -1 ? void 0 : !!u)
	), e;
}
function Z(e) {
	return Array.from(e.children).forEach((t) => t.remove()), e;
}
function F(e, t) {
	if (!Reflect.has(e, t))
		return !1;
	let r = y(e, t);
	return !p(r.set);
}
function y(e, t) {
	if (e = Object.getPrototypeOf(e), !e)
		return {};
	let r = Object.getOwnPropertyDescriptor(e, t);
	return r || y(e, t);
}
function A(e, t, r) {
	if (!(typeof t != "object" || t === null))
		return Object.entries(t).forEach(function([u, i]) {
			u && (i = e.processReactiveAttribute(t, u, i, (a) => r(...a)), r(u, i));
		});
}
function D(e) {
	return Array.isArray(e) ? e.filter(Boolean).join(" ") : e;
}
function M(e, t, r, n) {
	return e[(p(n) ? "remove" : "set") + t](r, D(n));
}
function T(e, t, r, n, u = null) {
	return e[(p(n) ? "remove" : "set") + t + "NS"](u, r, D(n));
}
function C(e, t, r) {
	if (Reflect.set(e, t, r), !!p(r))
		return Reflect.deleteProperty(e, t);
}

// src/events.js
function K(e, t, ...r) {
	let n = r.length ? new CustomEvent(t, { detail: r[0] }) : new Event(t);
	return e.dispatchEvent(n);
}
function L(e, t, r) {
	return function(u) {
		return u.addEventListener(e, t, r), u;
	};
}
var x = U();
L.connected = function(e, t) {
	return typeof t != "object" && (t = {}), t.once = !0, function(n) {
		return n.addEventListener("dde:connected", e, t), typeof n.connectedCallback == "function" ? n : n.isConnected ? (n.dispatchEvent(new Event("dde:connected")), n) : (_(t.signal, () => x.offConnected(n, e)) && x.onConnected(n, e), n);
	};
};
L.disconnected = function(e, t) {
	return typeof t != "object" && (t = {}), t.once = !0, function(n) {
		return n.addEventListener("dde:disconnected", e, t), typeof n.disconnectedCallback == "function" || _(t.signal, () => x.offDisconnected(n, e)) && x.onDisconnected(n, e), n;
	};
};
function U() {
	let e = /* @__PURE__ */ new Map(), t = !1, r = new MutationObserver(function(c) {
		for (let o of c)
			if (o.type === "childList") {
				if (g(o.addedNodes, !0)) {
					a();
					continue;
				}
				b(o.removedNodes, !0) && a();
			}
	});
	return {
		onConnected(c, o) {
			i();
			let s = u(c);
			s.connected.has(o) || (s.connected.add(o), s.length_c += 1);
		},
		offConnected(c, o) {
			if (!e.has(c))
				return;
			let s = e.get(c);
			s.connected.has(o) && (s.connected.delete(o), s.length_c -= 1, n(c, s));
		},
		onDisconnected(c, o) {
			i();
			let s = u(c);
			s.disconnected.has(o) || (s.disconnected.add(o), s.length_d += 1);
		},
		offDisconnected(c, o) {
			if (!e.has(c))
				return;
			let s = e.get(c);
			s.disconnected.has(o) && (s.disconnected.delete(o), s.length_d -= 1, n(c, s));
		}
	};
	function n(c, o) {
		o.length_c || o.length_d || (e.delete(c), a());
	}
	function u(c) {
		if (e.has(c))
			return e.get(c);
		let o = {
			connected: /* @__PURE__ */ new WeakSet(),
			length_c: 0,
			disconnected: /* @__PURE__ */ new WeakSet(),
			length_d: 0
		};
		return e.set(c, o), o;
	}
	function i() {
		t || (t = !0, r.observe(document.body, { childList: !0, subtree: !0 }));
	}
	function a() {
		!t || e.size || (t = !1, r.disconnect());
	}
	function f() {
		return new Promise(function(c) {
			(requestIdleCallback || requestAnimationFrame)(c);
		});
	}
	async function d(c) {
		e.size > 30 && await f();
		let o = [];
		if (!(c instanceof Node))
			return o;
		for (let s of e.keys())
			s === c || !(s instanceof Node) || c.contains(s) && o.push(s);
		return o;
	}
	function g(c, o) {
		let s = !1;
		for (let l of c) {
			if (o && d(l).then(g), !e.has(l))
				continue;
			let v = e.get(l);
			v.length_c && (l.dispatchEvent(new Event("dde:connected")), v.connected = /* @__PURE__ */ new WeakSet(), v.length_c = 0, v.length_d || e.delete(l), s = !0);
		}
		return s;
	}
	function b(c, o) {
		let s = !1;
		for (let l of c)
			o && d(l).then(b), !(!e.has(l) || !e.get(l).length_d) && (l.dispatchEvent(new Event("dde:disconnected")), e.delete(l), s = !0);
		return s;
	}
}

// index.js
[HTMLElement, SVGElement, DocumentFragment].forEach((e) => {
	let { append: t } = e.prototype;
	e.prototype.append = function(...r) {
		return t.apply(this, r), this;
	};
});
export {
	w as assign,
	j as classListDeclarative,
	I as createElement,
	K as dispatchEvent,
	I as el,
	Z as empty,
	L as on,
	N as registerReactivity,
	H as scope
};