From 32523cdcd9eaa4ad9363d79ebe82d5de4b852676 Mon Sep 17 00:00:00 2001
From: tomsmeding <tom.smeding@gmail.com>
Date: Wed, 22 Nov 2017 21:23:14 +0100
Subject: Add module 'zelfoverhoor'

Beta stage
---
 modules/zelfoverhoor/qs.js | 76 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 modules/zelfoverhoor/qs.js

(limited to 'modules/zelfoverhoor/qs.js')

diff --git a/modules/zelfoverhoor/qs.js b/modules/zelfoverhoor/qs.js
new file mode 100644
index 0000000..cc68af9
--- /dev/null
+++ b/modules/zelfoverhoor/qs.js
@@ -0,0 +1,76 @@
+var setname=questionset.name;
+var setdescription=questionset.description;
+var questions=questionset.questions;
+
+var currentidx=0;
+var numcorrect=0;
+
+function clearElement(el){
+	while(el.lastChild)el.removeChild(el.lastChild);
+}
+
+function shuffle(a){
+	var j,v,i;
+	for(var i=a.length-1;i>0;i--){
+		j=Math.floor(Math.random()*(i+1));
+		v=a[i]; a[i]=a[j]; a[j]=v;
+	}
+}
+
+function startQuiz(){
+	currentidx=0;
+	numcorrect=0;
+	showCurrent();
+}
+
+function showCurrent(){
+	document.getElementById("qcontainer").classList.remove("invisible");
+	document.getElementById("rescontainer").classList.add("invisible");
+	document.getElementById("answercontainer").classList.add("invisible");
+	document.getElementById("showAnswerButton").classList.remove("invisible");
+
+	var qdiv=document.getElementById("question");
+	clearElement(qdiv);
+	qdiv.appendChild(document.createTextNode(questions[currentidx].q));
+}
+
+function showAnswer(){
+	document.getElementById("answercontainer").classList.remove("invisible");
+	document.getElementById("showAnswerButton").classList.add("invisible");
+
+	var adiv=document.getElementById("answer");
+	clearElement(adiv);
+	adiv.appendChild(document.createTextNode(questions[currentidx].a));
+}
+
+function finishQuiz(){
+	document.getElementById("qcontainer").classList.add("invisible");
+	document.getElementById("rescontainer").classList.remove("invisible");
+	document.getElementById("numcorrect").innerHTML=numcorrect;
+	document.getElementById("numtotal").innerHTML=questions.length;
+	if(numcorrect==questions.length){
+		document.getElementById("allcorrectp").classList.remove("invisible");
+	} else {
+		document.getElementById("allcorrectp").classList.add("invisible");
+	}
+}
+
+function advance(corr){
+	if(corr)numcorrect++;
+	currentidx++;
+	if(currentidx<questions.length){
+		showCurrent();
+	} else {
+		finishQuiz();
+	}
+}
+
+window.addEventListener("load",function(){
+	document.getElementById("qsetname").appendChild(document.createTextNode(setname));
+	document.getElementById("qsetdescr").appendChild(document.createTextNode(setdescription));
+	if(questions.length==0){
+		alert("Deze lijst heeft geen vragen, dus er kan weinig overhoord worden, eerlijk gezegd...");
+		return;
+	}
+	startQuiz();
+});
-- 
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