v5: Revenge of the JavaScript 🦸 (#711)

Hugo ➡️ Next.js

components/loading/Loading.tsx

@@ -0,0 +1,56 @@
+type Props = {
+  boxes?: number;
+  timing?: number;
+  width: number;
+};
+
+export default function Loading({ boxes = 3, timing = 0.1, width }: Props) {
+  // each box is just an empty div
+  const divs = [];
+
+  // allow a custom number of pulsing boxes (defaults to 3)
+  for (let i = 0; i < boxes; i++) {
+    // width of each box correlates with number of boxes (with a little padding)
+    // each individual box's animation has a staggered start in corresponding order
+    divs.push(
+      <div key={i}>
+        <style jsx>{`
+          div {
+            display: inline-block;
+            width: ${width / (boxes + 1)}px;
+            height: 100%;
+            animation: loading 1.5s infinite ease-in-out both;
+            animation-delay: ${i * timing}s;
+            background-color: var(--medium-light);
+          }
+
+          /* modified from https://tobiasahlin.com/spinkit/ */
+          @keyframes loading {
+            0%,
+            80%,
+            100% {
+              transform: scale(0);
+            }
+            40% {
+              transform: scale(0.6);
+            }
+          }
+        `}</style>
+      </div>
+    );
+  }
+
+  return (
+    <div>
+      {divs}
+      <style jsx>{`
+        div {
+          width: ${width}px;
+          height: ${width / 2}px;
+          display: inline-block;
+          text-align: center;
+        }
+      `}</style>
+    </div>
+  );
+}