From b6beb5f02e8c291f2b5f2bc7d0c15d0955336c32 Mon Sep 17 00:00:00 2001
From: Jan Tuomi <jans.tuomi@gmail.com>
Date: Fri, 2 Jul 2021 11:19:25 +0300
Subject: Implement research papers

---
 frontend/components/Marquees/Marquee.module.css | 38 +++++++++++++++++++++++++
 frontend/components/Marquees/Marquee.tsx        | 20 +++++++++++++
 frontend/components/Marquees/Marquees.tsx       | 35 +++++++++++++++++++++++
 3 files changed, 93 insertions(+)
 create mode 100644 frontend/components/Marquees/Marquee.module.css
 create mode 100644 frontend/components/Marquees/Marquee.tsx
 create mode 100644 frontend/components/Marquees/Marquees.tsx

(limited to 'frontend/components')

diff --git a/frontend/components/Marquees/Marquee.module.css b/frontend/components/Marquees/Marquee.module.css
new file mode 100644
index 0000000..0fb8ece
--- /dev/null
+++ b/frontend/components/Marquees/Marquee.module.css
@@ -0,0 +1,38 @@
+.marqueeContainer {
+  height: 100vh;
+  overflow: hidden;
+  position: relative;
+  background: #fefefe;
+  color: #333;
+  z-index: 10;
+}
+
+.marquee {
+  position: absolute;
+  width: 100%;
+  height: 50px;
+  margin: 0;
+  line-height: 50px;
+  text-align: center;
+  transform: translateX(100%);
+  animation: scroll-left 10s linear infinite;
+  text-decoration: underline;
+}
+
+@keyframes scroll-left {
+  0% {
+      transform: translateX(100%);
+  }
+  100% {
+      transform: translateX(-100%);
+  }
+}
+
+@keyframes scroll-right {
+  0% {
+      transform: translateX(-100%);
+  }
+  100% {
+      transform: translateX(100%);
+  }
+}
diff --git a/frontend/components/Marquees/Marquee.tsx b/frontend/components/Marquees/Marquee.tsx
new file mode 100644
index 0000000..4cc41a2
--- /dev/null
+++ b/frontend/components/Marquees/Marquee.tsx
@@ -0,0 +1,20 @@
+import React, { ReactElement } from "react";
+import styles from "./Marquee.module.css";
+
+interface Props {
+  delayShorthand: string;
+  topShorthand: string;
+  url: string;
+  text: string;
+  direction: "left" | "right";
+}
+
+const Marquee = ({ delayShorthand, url, text, topShorthand, direction }: Props): ReactElement => (
+    <a className={styles.marquee} href={url} style={{
+        animationDelay: delayShorthand,
+        top: topShorthand,
+        animationDirection: direction === "left" ? "normal" : "reverse",
+    }}>{text}</a>
+);
+
+export default Marquee;
diff --git a/frontend/components/Marquees/Marquees.tsx b/frontend/components/Marquees/Marquees.tsx
new file mode 100644
index 0000000..04747fb
--- /dev/null
+++ b/frontend/components/Marquees/Marquees.tsx
@@ -0,0 +1,35 @@
+import React, { ReactElement } from "react";
+import styles from "./Marquee.module.css";
+import Marquee from "./Marquee";
+
+export interface MarqueeLink {
+  title: string;
+  url: string;
+}
+
+interface Props {
+    links: MarqueeLink[]
+}
+
+const getRandomDelayBetween = (start: number, end: number) => `${Math.random() * (end - start) + start}s`;
+const getTopFromIndex = (index: number, n: number) => `calc((100% - 50px) * (${index} / ${n - 1}))`;
+const getRandomAnimationName = () => Math.random() > 0.5 ? "right" : "left";
+
+const Marquees = ({ links }: Props): ReactElement => {
+    return (
+        <div className={styles.marqueeContainer}>
+            { links.map((link, idx) => (
+                <Marquee
+                    key={idx}
+                    url={link.url}
+                    text={link.title}
+                    delayShorthand={getRandomDelayBetween(0, 9)}
+                    topShorthand={getTopFromIndex(idx, links.length)}
+                    direction={getRandomAnimationName()}
+                />
+            ))}
+        </div>
+    );
+};
+
+export default Marquees;
-- 
cgit v1.3