simple-timer
<html>
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<script src="https://cdn.tailwindcss.com"></script>
<link
rel="stylesheet"
href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css"
integrity="sha512-DTOQO9RWCH3ppGqcWaEA1BIZOC6xxalwEsw9c2QQeAIftl+Vegovlnee1c9QX4TctnWMn13TZye+giMm8e2LwA=="
crossorigin="anonymous"
referrerpolicy="no-referrer"
/>
<style>
:root {
--degrees: 0deg;
}
.bg-conic {
background: conic-gradient(
transparent 0deg,
transparent var(--degrees),
white var(--degrees),
white 360deg
);
}
.hand {
transform-origin: bottom center;
transform: rotate(var(--degrees));
}
</style>
<title>Simple Timer</title>
</head>
<body class="bg-gray-700 flex justify-center items-center min-h-screen">
<div class="bg-gray-900 p-16 rounded-2xl shadow w-full max-w-sm">
<h1 class="text-4xl text-center text-white">Timer</h1>
<!-- Create the circle -->
<div
id="conic"
class="bg-conic flex items-center justify-center w-60 h-60 mx-auto my-10 rounded-full relative"
>
<p id="timer" class="text-blue-200 relative text-5xl z-10">00:00</p>
<!-- Create the inner cirlce and line -->
<div
class="w-[calc(100%-4px)] aspect-square bg-gray-800 rounded-full absolute inset-[2px]"
></div>
<!-- Create the hand/marker -->
<div class="hand h-1/2 absolute top-0">
<span
class="w-2 h-2 bg-white rounded-full absolute -top-1 -left-1"
></span>
</div>
</div>
<div class="flex justify-center gap-6">
<button
id="reset"
class="flex justify-center items-center w-10 h-10 bg-blue-300 rounded-full"
>
<i class="fas fa-refresh"></i>
</button>
<button
id="play"
class="flex justify-center items-center w-10 h-10 bg-blue-300 rounded-full group"
>
<i class="fas fa-play"></i>
</button>
</div>
</div>
<script>const resetBtn = document.querySelector('#reset');
const playBtn = document.querySelector('#play');
const timerEl = document.querySelector('#timer');
const root = document.querySelector(':root');
// Initial setup
const totalSeconds = 60;
let playing = false;
let currentSeconds = totalSeconds;
timerEl.innerText = formatTime(totalSeconds);
const timerInterval = setInterval(run, 1000);
playBtn.addEventListener('click', () => {
playing = !playing;
playBtn.classList.toggle('play');
playBtn.classList.toggle('bg-green-500'); // Toggle the color class
const playIcon = playBtn.querySelector('i');
playIcon.classList.toggle('fa-play'); // Toggle the play icon
playIcon.classList.toggle('fa-pause'); // Toggle the pause icon
});
resetBtn.addEventListener('click', resetAll);
// Run the timer
function run() {
if (playing) {
currentSeconds -= 1;
if (currentSeconds <= 0) {
clearInterval(timerInterval);
resetAll();
}
timerEl.innerText = formatTime(currentSeconds);
root.style.setProperty('--degrees', calcDeg());
}
}
// Format the time
function formatTime(seconds) {
const minutes = Math.floor(seconds / 60);
const newSeconds = seconds % 60;
return `${minutes.toString().padStart(2, '0')}:${newSeconds
.toString()
.padStart(2, '0')}`;
}
// Calculate the degrees
function calcDeg() {
return `${360 - (currentSeconds / totalSeconds) * 360}deg`;
}
// Reset all the values
function resetAll() {
playing = false;
playBtn.classList.remove('play');
playBtn.classList.remove('bg-green-500'); // Remove the color class
const playIcon = playBtn.querySelector('i');
playIcon.classList.remove('fa-pause'); // Remove the pause icon
playIcon.classList.add('fa-play'); // Add the play icon
currentSeconds = totalSeconds;
timerEl.innerText = formatTime(totalSeconds);
root.style.setProperty('--degrees', '0deg');
}
</script>
</body>
</html>