Hugo-theme-stack/assets/ts/color.ts
2020-08-22 13:20:08 +02:00

49 lines
1.2 KiB
TypeScript

interface colorScheme {
DarkMuted: {
hex: string,
rgb: Number[],
bodyTextColor: string
},
Vibrant: {
hex: string,
rgb: Number[],
bodyTextColor: string
}
}
let colorsCache: { [key: string]: colorScheme } = {};
if (localStorage.hasOwnProperty('colorsCache')) {
try {
colorsCache = JSON.parse(localStorage.getItem('colorsCache'));
}
catch (e) {
colorsCache = {};
}
}
async function getColor(imageURL: string) {
if (!colorsCache.hasOwnProperty(imageURL)) {
const palette = await Vibrant.from(imageURL).getPalette();
colorsCache[imageURL] = {
Vibrant: {
hex: palette.Vibrant.hex,
rgb: palette.Vibrant.rgb,
bodyTextColor: palette.Vibrant.bodyTextColor
},
DarkMuted: {
hex: palette.DarkMuted.hex,
rgb: palette.DarkMuted.rgb,
bodyTextColor: palette.DarkMuted.bodyTextColor
}
}
localStorage.setItem('colorsCache', JSON.stringify(colorsCache));
}
return colorsCache[imageURL];
}
export {
getColor
}