interim commit

src/lib/fix-pmc.js

@@ -0,0 +1,26 @@
+import { options } from 'preact';
+
+const classNameDescriptor = {
+	enumerable: false,
+	configurable: true,
+	get() {
+		return this.class;
+	},
+	set(value) {
+		this.class = value;
+	}
+};
+
+let old = options.vnode;
+options.vnode = vnode => {
+	let a = vnode.attributes;
+	if (a!=null) {
+		if ('className' in a) {
+			a.class = a.className;
+		}
+		if ('class' in a) {
+			Object.defineProperty(a, 'className', classNameDescriptor);
+		}
+	}
+	if (old != null) old(vnode);
+};

src/lib/util.js

@@ -0,0 +1,10 @@
+export function updater(obj, property, value) {
+	return e => {
+		let update = {};
+		update[property] = typeof value === 'function' ? value(obj.state[property], e) : value;
+		obj.setState(update);
+	};
+}
+
+export const toggle = value => !value;
+