removeAttributesBySelector.js•2.42 kB
'use strict';
const { querySelectorAll } = require('../lib/xast.js');
exports.name = 'removeAttributesBySelector';
exports.description =
'removes attributes of elements that match a css selector';
/**
* Removes attributes of elements that match a css selector.
*
* @example
* <caption>A selector removing a single attribute</caption>
* plugins: [
* {
* name: "removeAttributesBySelector",
* params: {
* selector: "[fill='#00ff00']"
* attributes: "fill"
* }
* }
* ]
*
* <rect x="0" y="0" width="100" height="100" fill="#00ff00" stroke="#00ff00"/>
* ↓
* <rect x="0" y="0" width="100" height="100" stroke="#00ff00"/>
*
* <caption>A selector removing multiple attributes</caption>
* plugins: [
* {
* name: "removeAttributesBySelector",
* params: {
* selector: "[fill='#00ff00']",
* attributes: [
* "fill",
* "stroke"
* ]
* }
* }
* ]
*
* <rect x="0" y="0" width="100" height="100" fill="#00ff00" stroke="#00ff00"/>
* ↓
* <rect x="0" y="0" width="100" height="100"/>
*
* <caption>Multiple selectors removing attributes</caption>
* plugins: [
* {
* name: "removeAttributesBySelector",
* params: {
* selectors: [
* {
* selector: "[fill='#00ff00']",
* attributes: "fill"
* },
* {
* selector: "#remove",
* attributes: [
* "stroke",
* "id"
* ]
* }
* ]
* }
* }
* ]
*
* <rect x="0" y="0" width="100" height="100" fill="#00ff00" stroke="#00ff00"/>
* ↓
* <rect x="0" y="0" width="100" height="100"/>
*
* @link https://developer.mozilla.org/docs/Web/CSS/CSS_Selectors|MDN CSS Selectors
*
* @author Bradley Mease
*
* @type {import('./plugins-types').Plugin<'removeAttributesBySelector'>}
*/
exports.fn = (root, params) => {
const selectors = Array.isArray(params.selectors)
? params.selectors
: [params];
for (const { selector, attributes } of selectors) {
const nodes = querySelectorAll(root, selector);
for (const node of nodes) {
if (node.type === 'element') {
if (Array.isArray(attributes)) {
for (const name of attributes) {
delete node.attributes[name];
}
} else {
delete node.attributes[attributes];
}
}
}
}
return {};
};