mue/src/utils/background/gradient/getGradient.js

47 lines
1.6 KiB
JavaScript

/**
* It takes a gradient object and returns a style object
* @returns An object with two properties: type and style.
*/
export function gradientStyleBuilder({ type, angle, gradient }) {
// Note: Append the gradient for additional browser support.
const steps = gradient?.map((v) => `${v.colour} ${v.stop}%`);
const grad = `background: ${type}-gradient(${type === 'linear' ? `${angle}deg,` : ''}${steps})`;
return {
type: 'colour',
style: `background:${gradient[0]?.colour};${grad}`,
};
}
/**
* It gets the gradient settings from localStorage, parses it, and returns the gradient style.
* @returns A string.
*/
export function getGradient() {
const customBackgroundColour = localStorage.getItem('customBackgroundColour') || {
angle: '180',
gradient: [{ colour: '#ffb032', stop: 0 }],
type: 'linear',
};
let gradientSettings = '';
try {
gradientSettings = JSON.parse(customBackgroundColour);
} catch (e) {
const hexColorRegex = /#[0-9a-fA-F]{6}/s;
if (hexColorRegex.exec(customBackgroundColour)) {
// Colour used to be simply a hex colour or a NULL value before it was a JSON object. This automatically upgrades the hex colour value to the new standard. (NULL would not trigger an exception)
gradientSettings = {
type: 'linear',
angle: '180',
gradient: [{ colour: customBackgroundColour, stop: 0 }],
};
localStorage.setItem('customBackgroundColour', JSON.stringify(gradientSettings));
}
}
if (typeof gradientSettings === 'object' && gradientSettings !== null) {
return gradientStyleBuilder(gradientSettings);
}
}