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

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

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

// index.js
[HTMLElement, SVGElement, DocumentFragment].forEach((e) => {
	let { append: t } = e.prototype;
	e.prototype.append = function(...n) {
		return t.apply(this, n), this;
	};
});
export {
	w as assign,
	T as classListDeclarative,
	V as createElement,
	Q as dispatchEvent,
	V as el,
	$ as empty,
	y as on,
	P as registerReactivity,
	x as scope
};