nextcloud-pride-flags/js/pride.js

97 lines
3.2 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)'
}, {
id: 'pan',
colors: ['#FE218C', '#FFD800', '#21B1FF'],
transform: 'rotate(90)'
}, {
id: 'nonbinary',
colors: ['#FCF434', '#FFFFFF', '#9C59D1', '#2C2C2C'],
transform: 'rotate(90)'
}, {
id: 'bi',
// colors: ['#C42A6F', '#915392', '#1437A1'],
colors: ['#D60270', '#9B4F96', '#0038A8'],
transform: 'rotate(90)'
}, {
id: 'asexual',
colors: ['#000000', '#9F9F9F', '#FFFFFF', '#5E1984'],
transform: 'rotate(90)'
}, {
id: 'lesbian',
colors: ['#D52D00', '#EF7627', '#FF9A56', '#FFFFFF', '#D162A4', '#B55690', '#A30262'],
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}">
${generateStops(colors, opacity).join('\n')}
</linearGradient>
</defs>
<style>
rect { height: 100%; width: 100%; }
</style>
<rect fill="url(#gradient-${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 = `
body {
--image-background-pride-${flag.id}: url('data:image/svg+xml;base64,${btoa(svg_html)}');
--image-background-pride-gradient-${flag.id}: url("#gradient-${flag.id}");
}
`;
document.body.prepend(container);
document.head.prepend(style_c);
});
fetch(OC.generateUrl('/apps/pride_flags/settings'))
.then(response => response.json())
.then(({folderVariant, buttonVariant}) => {
if (document.querySelector('head > style#pride_flag_settings') == null) {
const node = document.createElement('style');
node.id = 'pride_flag_settings';
document.head.prepend(node);
}
const style_settings = document.querySelector('head > style#pride_flag_settings');
style_settings.textContent = `
body {
--image-background-pride-button: var(--image-background-pride-${buttonVariant});
--image-background-pride-folder: var(--image-background-pride-${folderVariant});
--image-background-pride-button-gradient: var(--image-background-pride-gradient-${buttonVariant});
--image-background-pride-folder-gradient: var(--image-background-pride-gradient-${folderVariant});
}
`;
});