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