54 lines
1.7 KiB
JavaScript
54 lines
1.7 KiB
JavaScript
const flags = [
|
|
{
|
|
id: 'pride',
|
|
colors: ['#E04641', '#DE7E41', '#E4D56F', '#55B85F', '#2473B5', '#6F5DA5'],
|
|
transform: 'rotate(90)'
|
|
}, {
|
|
id: 'trans',
|
|
colors: ['#55CDFC', '#F7A8B8', '#FFFFFF', '#F7A8B8', '#55CDFC'],
|
|
transform: 'rotate(90)'
|
|
}
|
|
];
|
|
|
|
const generateGradient = colors => {
|
|
const steps = colors.length;
|
|
return colors.map((color, index) => { return [
|
|
[color, (index / steps)],
|
|
[color, (index + 1) / steps]
|
|
]}).flat();
|
|
};
|
|
|
|
const generateStops = (colors, opacity) => {
|
|
return generateGradient(colors).map(([color, offset]) => {
|
|
return `<stop stop-color="${color}" stop-opacity="${opacity}" offset="${offset * 100}%"></stop>`;
|
|
});
|
|
};
|
|
|
|
const makeLinearGradientSvg = (id, colors, opacity, transform) => {
|
|
return `<svg xmlns="http://www.w3.org/2000/svg" id="svg-${id}" preserveAspectRatio="none" width="100%" height="100%">
|
|
<defs>
|
|
<linearGradient id="gradient-${id}" gradientTransform="${transform}">
|
|
${generateStops(colors, opacity).join('\n')}
|
|
</linearGradient>
|
|
</defs>
|
|
<style>
|
|
rect { height: 100%; width: 100%; }
|
|
</style>
|
|
<rect fill="#gradient-${id}" width="100%" height="100%" />
|
|
</svg>`;
|
|
};
|
|
|
|
flags.forEach(flag => {
|
|
const svg_html = makeLinearGradientSvg(flag.id, flag.colors, flag.opacity ?? '0.8', flag.transform ?? 'rotate(0)');
|
|
const container = document.createElement('div');
|
|
container.classList.add('hidden-visually');
|
|
container.ariaHidden = true;
|
|
container.innerHTML = svg_html;
|
|
const style_c = document.createElement('style');
|
|
style_c.textContent = `.btn_pride_${flag.id} {
|
|
background: var(--color-primary-element) url('data:image/svg+xml;base64,${btoa(svg_html)}') no-repeat left top;
|
|
}`;
|
|
document.body.prepend(container);
|
|
document.head.prepend(style_c);
|
|
});
|