a whole load of work in progress

static/framework.js

@@ -0,0 +1,30 @@
+export function listen(...listenerSpecs) {
+    return new Promise((resolve) => {
+        let removeAllEventListeners;
+
+        let listeners = listenerSpecs.map(([element, eventName]) => {
+            let listener = (event) => {
+                removeAllEventListeners();
+                resolve(event);
+            };
+            element.addEventListener(eventName, listener);
+            return { element, eventName, func: listener };
+        });
+
+        removeAllEventListeners = () => {
+            for (let listener of listeners) {
+                listener.element.removeEventListener(listener.eventName, listener.func);
+            }
+        };
+    });
+}
+
+export function debounce(time, fn) {
+    let timeout = null;
+    return (...args) => {
+        if (timeout == null) {
+            fn(...args);
+            timeout = setTimeout(() => (timeout = null), time);
+        }
+    };
+}