codepens/hsl-monochromatic-palette-g.../dist/script.js

54 lines
1.2 KiB
JavaScript

const { $ } = window;
const CODE_BLOCK = document.querySelector('code');
const STYLE_BLOCK = document.querySelector('#update');
const CODE_TEMPLATE = (hue, saturation, lightness) => {
const STEP = (lightness[1] - lightness[0]) / 7;
let RESULT = `:root {\n`;
for (let s = 0; s < 8; s++) {
RESULT += ` --shade-${s + 1}: hsl(${hue}, ${saturation}%, ${Math.floor(
lightness[1] - s * STEP)
}%);\n`;
}
return RESULT += '}';
};
const UPDATE = () => {
const CODE = CODE_TEMPLATE(
$('#hue').slider('value'),
$('#saturation').slider('value'),
$('#lightness').slider('values'));
const HTML = Prism.highlight(CODE, Prism.languages.css, 'css');
STYLE_BLOCK.innerHTML = CODE;
CODE_BLOCK.innerHTML = HTML;
};
$('#hue').slider({
min: 0,
max: 360,
step: 1,
slide: UPDATE,
change: UPDATE });
$('#saturation').slider({
min: 0,
max: 100,
step: 1,
slide: UPDATE,
change: UPDATE });
$('#lightness').slider({
range: true,
min: 0,
max: 100,
values: [0, 100],
step: 1,
slide: UPDATE,
change: UPDATE });
$('#hue').slider('value', Math.floor(Math.random() * 360));
$('#saturation').slider('value', Math.floor(Math.random() * 100));
UPDATE();