simple-flashcards/flashcards.html
2019-08-04 16:35:09 -05:00

309 lines
6.3 KiB
HTML

<!doctype html>
<html>
<head>
<title>Simple Flashcards</title>
<meta charset=utf-8>
<style type="text/css">
* {
box-sizing: border-box;
margin: 0;
padding: 0;
}
html {
font-family: sans-serif;
}
body {
display: flex;
flex-direction: column;
}
.title {
font-size: 1.5em;
margin: 1rem auto;
}
#settings {
display: flex;
flex-direction: column;
flex-grow: 1;
opacity: 0;
}
#settings label {
display: block;
margin-top: 1.5rem;
}
#settings textarea {
flex-grow: 2;
font-size: 100%;
}
#settings input, #settings select {
font-size: 100%;
flex-grow: 1;
}
#adv-settings label {
display: flex;
}
#adv-settings label span {
flex-grow: 1;
}
button {
background-color: #FFF;
border: solid thin #000;
border-radius: 4px;
cursor: pointer;
font-size: inherit;
padding: .2em .5em;
}
.btn-primary {
background-color: #1CB841;
border: 0;
border-radius: 4px;
color: #FFF;
}
#settings .visibility-indicator {
display: inline-block;
transition: all linear 0.2s;
}
#settings #adv-settings {
max-height: 0;
overflow: hidden;
transition: max-height linear 0.3s;
}
#settings.adv-settings-visible .visibility-indicator {
transform: rotate(90deg);
}
.toggle-adv-settings {
cursor: pointer;
}
/* Settings Visible */
#settings {
transition: opacity 0.2s linear;
z-index: -1;
}
.settings-visible #settings {
opacity: 1;
z-index: 1;
}
/* Card View Visible */
#cards {
opacity: 1;
transition: opacity 0.2s linear;
transition-delay: 0.2s;
z-index: 1;
}
.settings-visible #cards {
opacity: 0;
z-index: -1;
}
/* Mobile View */
@media ( max-width: 600px ) {
body {
font-size: 125%;
height: calc(100vh - 1em);
margin: 0.5em;
width: calc(100vw - 1em);
}
#settings {
align-items: stretch;
}
#settings > button {
font-size: 125%;
margin: 1em auto;
padding: 0.5em 3em;
}
#settings.adv-settings-visible #adv-settings {
max-height: 12em;
}
}
/* Tablet View */
@media (max-width: 1279px) and (min-width: 601px) {
body {
font-size: 125%;
margin: 1em;
height: calc(100vh - 2em);
width: calc(100vw - 2em);
}
#settings > button {
font-size: 125%;
margin: 1em auto;
padding: 0.5em 3em;
}
#settings.adv-settings-visible #adv-settings {
max-height: 10em;
}
}
/* Desktop View */
@media (min-width: 1280px) {
body {
font-size: 150%;
margin: 2em auto;
min-height: calc(100vh - 4em);
width: 32em;
}
#settings button {
align-self: flex-end;
}
#settings.adv-settings-visible #adv-settings {
max-height: 8em;
}
}
</style>
<script>
const FC = {
items: [],
slidePeriod: 3,
nextCardIdx: 0,
cardOrder: []
};
// http://stackoverflow.com/questions/2450954/how-to-randomize-shuffle-a-javascript-array
// modified to be a pure function, not mutating it's input
FC.shuffle = function(inArray) {
var currentIndex = inArray.length
, temporaryValue
, randomIndex
;
var outArray = inArray.slice(0);
// While there remain elements to shuffle...
while (0 !== currentIndex) {
// Pick a remaining element...
randomIndex = Math.floor(Math.random() * currentIndex);
currentIndex -= 1;
// And swap it with the current element.
temporaryValue = outArray[currentIndex];
outArray[currentIndex] = outArray[randomIndex];
outArray[randomIndex] = temporaryValue;
}
return outArray;
}
FC.isRunning = function() {
return !FC.bodyEl.classList.contains('settings-visible');
}
FC.toggleAdvSettings = function() {
FC.settingsEl.classList.toggle('adv-settings-visible');
}
FC.startCards = function() {
FC.items = FC.itemsEl.value.split('\n');
FC.slidePeriod =
parseInt(FC.settingsEl.querySelector('input[name=slidePeriod]').value);
FC.nextCardIdx = 0;
const orderedIndices = [...Array(FC.items.length).keys()];
switch (document.querySelector('select[name=cardOrder]').value) {
default:
case 'in-order':
FC.cardOrder = orderedIndices;
break;
case 'reverse':
FC.cardOrder = orderedIndices.reverse();
break;
case 'random':
FC.cardOrder = FC.shuffle(orderedIndices);
}
FC.showNextCard();
FC.runningInterval = setInterval(FC.showNextCard, FC.slidePeriod * 1000);
FC.bodyEl.classList.remove('settings-visible');
}
FC.stopCards = function() {
clearInterval(FC.runningInterval);
FC.bodyEl.classList.add('settings-visible');
}
FC.showNextCard = function() {
const curItem = FC.items[FC.cardOrder[FC.nextCardIdx]];
FC.cardContentEl.innerHTML = curItem;
FC.nextCardIdx = (FC.nextCardIdx + 1) % FC.items.length;
}
window.onload = function() {
FC.settingsEl = document.querySelector('#settings');
FC.itemsEl = document.querySelector('#items-input');
FC.bodyEl = document.querySelector('body');
FC.cardsEl = document.querySelector('#cards');
FC.cardContentEl = document.querySelector('#card-content');
}
</script>
</head>
<body class=settings-visible>
<h1 class=title>Simple Flashcards</h1>
<form id=settings action=#>
<label>Items</label>
<textarea id=items-input></textarea>
<label class=toggle-adv-settings onclick=FC.toggleAdvSettings()>Advanced Settings <span class=visibility-indicator></span></label>
<div id=adv-settings>
<label>
<span>Seconds per slide:</span>
<input type=number name=slidePeriod value=3>
</label>
<label>
<span>Show cards </span>
<select name=cardOrder>
<option value=in-order>in order.</option>
<option value=reverse>in reverse order.</option>
<option value=random>in random order.</option>
</select>
<label>
<span>Saved sets:</span>
<select name=loadSetName disabled>
<option>choose a set to load</option>
</select>
<button disabled>Load</button>
</label>
<label>
<span>Save this set as:</span>
<input type=text name=saveSetname disabled>
<button disabled>Save</button>
</label>
</div>
<button class=btn-primary onclick=FC.startCards()>Go!</button>
</form>
<div id=cards>
<div id=card-content>
</div>
</div>
</body>
</html>