1 files changed, 48 insertions, 0 deletions
diff --git a/ka.js b/ka.js
new file mode 100644
index 0000000..17370e9
--- /dev/null
+++ b/ka.js
@@ -0,0 +1,48 @@
+var doc = document;
+var elAttr = (tag, name) => tag.getAttribute(name);
+function el$Attr(name, value) {
+  this.setAttribute(name, value);
+  return this;
+}
+function el$OnClick(callback) {
+  this.onclick = callback;
+  return this;
+}
+function tag(name, attrs, ...children) {
+  const el = doc.createElement(name);
+  el.attr = elAttr;
+  el.$attr = el$Attr;
+  el.$onclick = el$OnClick;
+  for (const child of children) {
+    el.appendChild((typeof(child) === 'string') ? doc.createTextNode(child) : child);
+  }
+  for (const [attr, value] of Object.entries(attrs||{})) {
+    el.$attr(attr, value);
+  }
+  return el;
+}
+
+const TRIVIAL = "h1,h2,h3,p,a,div,span,select";
+for (let name of TRIVIAL.split(",")) {
+    window[name] = (...children) => tag(name, null, ...children);
+}
+
+var ahref = (href, ...children) => tag("a", {href}, ...children);
+var divcls = (klass, ...children) => tag("div", {class: klass}, ...children);
+var img = (src) => tag("img", {src});
+var input = (type) => tag("input", {type});
+
+function router(root, routes, onreload) {
+    function reload() {
+        let h = doc.location.hash.substr(1) || "/";
+        if (!(h in routes)) {
+            h = "";
+        }
+        root.replaceChildren(routes[h]());
+        onreload && onreload(h);
+    };
+    reload();
+    window.addEventListener("hashchange", reload);
+    root.reload = reload;
+}
+