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Custom range slider

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This commit is contained in:
Brad Traversy 2020-10-23 18:59:52 -04:00
parent 01ae675ae5
commit c35276c73a
4 changed files with 156 additions and 0 deletions
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3
custom-range-slider/.vscode/settings.json vendored Normal file
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{
"liveServer.settings.port": 5501
}

18
custom-range-slider/index.html Normal file
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" href="style.css" />
<title>Custom Range Slider</title>
</head>
<body>
<h2>Custom Range Slider</h2>
<div class="range-container">
<input type="range" id="range" min="0" max="100">
<label for="range">50</label>
</div>
<script src="script.js"></script>
</body>
</html>

27
custom-range-slider/script.js Normal file
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const range = document.getElementById('range')
range.addEventListener('input', (e) => {
const value = +e.target.value
const label = e.target.nextElementSibling
const range_width = getComputedStyle(e.target).getPropertyValue('width')
const label_width = getComputedStyle(label).getPropertyValue('width')
const num_width = +range_width.substring(0, range_width.length - 2)
const num_label_width = +label_width.substring(0, label_width.length - 2)
const max = +e.target.max
const min = +e.target.min
const left = value * (num_width / max) - num_label_width / 2 + scale(value, min, max, 10, -10)
label.style.left = `${left}px`
label.innerHTML = value
})
// https://stackoverflow.com/questions/10756313/javascript-jquery-map-a-range-of-numbers-to-another-range-of-numbers
const scale = (num, in_min, in_max, out_min, out_max) => {
return (num - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
}

108
custom-range-slider/style.css Normal file
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@import url('https://fonts.googleapis.com/css?family=Lato&display=swap');
* {
box-sizing: border-box;
}
body {
background-image: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
font-family: 'Lato', sans-serif;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
height: 100vh;
overflow: hidden;
margin: 0;
}
h2 {
position: absolute;
top: 10px;
}
.range-container {
position: relative;
}
input[type='range'] {
width: 300px;
margin: 18px 0;
-webkit-appearance: none;
}
input[type='range']:focus {
outline: none;
}
input[type='range'] + label {
background-color: #fff;
position: absolute;
top: -25px;
left: 110px;
width: 80px;
padding: 5px 0;
text-align: center;
border-radius: 4px;
box-shadow: 0 0 5px rgba(0, 0, 0, 0.3);
}
/* Chrome & Safari */
input[type='range']::-webkit-slider-runnable-track {
background: purple;
border-radius: 4px;
width: 100%;
height: 10px;
cursor: pointer;
}
input[type='range']::-webkit-slider-thumb {
-webkit-appearance: none;
height: 24px;
width: 24px;
background: #fff;
border-radius: 50%;
border: 1px solid purple;
margin-top: -7px;
cursor: pointer;
}
/* Firefox */
input[type='range']::-moz-range-track {
background: purple;
border-radius: 4px;
width: 100%;
height: 13px;
cursor: pointer;
}
input[type='range']::-moz-range-thumb {
-webkit-appearance: none;
height: 24px;
width: 24px;
background: #fff;
border-radius: 50%;
border: 1px solid purple;
margin-top: -7px;
cursor: pointer;
}
/* IE */
input[type='range']::-ms-track {
background: purple;
border-radius: 4px;
width: 100%;
height: 13px;
cursor: pointer;
}
input[type='range']::-ms-thumb {
-webkit-appearance: none;
height: 24px;
width: 24px;
background: #fff;
border-radius: 50%;
border: 1px solid purple;
margin-top: -7px;
cursor: pointer;
}