Merge remote-tracking branch 'upstream/main'

frontend/node_modules/svg-baker/lib/transformations/prefix-style-selectors.js

@@ -0,0 +1,30 @@
+const Promise = require('bluebird');
+const decodeEntities = require('he').decode;
+const postcss = require('postcss');
+const prefixSelectors = require('postcss-prefix-selector');
+
+/**
+ * @return {Function} PostHTML plugin
+ */
+function prefixStyleSelectors(prefix) {
+  return (tree) => {
+    const styleNodes = [];
+
+    tree.match({ tag: 'style' }, (node) => {
+      styleNodes.push(node);
+      return node;
+    });
+
+    return Promise.map(styleNodes, (node) => {
+      const content = node.content ? decodeEntities(node.content.join('')) : '';
+
+      return postcss()
+        .use(prefixSelectors({ prefix }))
+        .process(content)
+        .then(prefixedStyles => node.content = prefixedStyles.css);
+    }).then(() => tree);
+  };
+}
+
+module.exports = prefixStyleSelectors;
+