Highlighter

ts/highlighter.ts

@@ -0,0 +1,21 @@
+import { ElemWrapper } from "./elemwrapper";
+import { SingleTimer } from "./singletimer";
+
+export class Highlighter {
+    private elem: ElemWrapper;
+    private timer: SingleTimer;
+
+    constructor(elem: ElemWrapper) {
+        this.elem = elem;
+        this.elem.classList.add("preHighlight");
+
+        this.timer = new SingleTimer(() => {
+            this.elem.classList.remove("highlight");
+        }, 1000);
+    }
+
+    public highlight() {
+        this.elem.classList.add("highlight");
+        this.timer.start();
+    }
+}