lingator/dom-scanner.js

A plug-and-play npm package to auto-translate webpages using Google's Gemini AI.

export function getAllTextNodes(root = document.body) {
  const walker = document.createTreeWalker(
    root,
    NodeFilter.SHOW_TEXT,
    {
      acceptNode: (node) => {
        const text = node.nodeValue.trim();
        if (!text) return NodeFilter.FILTER_REJECT;
        if (
          node.parentNode &&
          ["SCRIPT", "STYLE", "NOSCRIPT"].includes(node.parentNode.nodeName)
        ) {
          return NodeFilter.FILTER_REJECT;
        }
        return NodeFilter.FILTER_ACCEPT;
      }
    }
  );

  const nodes = [];
  while (walker.nextNode()) nodes.push(walker.currentNode);
  return nodes;
}