查看“︁MediaWiki:Randownload.js”︁的源代码

// The function to download a single random link
function downloadRandomLink(links) {
  if (!links || links.length === 0) {
    console.error("The provided links array is empty or invalid.");
    return;
  }
  const randomIndex = Math.floor(Math.random() * links.length);
  const randomLink = links[randomIndex];
  const linkElement = document.createElement('a');
  linkElement.href = randomLink;
  // You might want to extract a more meaningful filename from the URL
  linkElement.download = `random_download_${Date.now()}`;
  document.body.appendChild(linkElement);
  linkElement.click();
  setTimeout(() => {
    document.body.removeChild(linkElement);
  }, 100);
}

document.addEventListener('DOMContentLoaded', () => {
  // Select all paragraphs that are designated as link list containers
  const linkListContainers = document.querySelectorAll('.link-list-container');

  linkListContainers.forEach(container => {
    const linkElements = container.querySelectorAll('a'); // Select links *within this specific container*
    const extractedLinks = [];

    linkElements.forEach(link => {
      if (link.href) {
        extractedLinks.push(link.href);
      }
    });

    if (extractedLinks.length > 0) {
      console.log("Found links in container:", extractedLinks);

      // Create a button for this specific link list
      const downloadButton = document.createElement('button');
      downloadButton.textContent = 'Download Random Link from this list';
      downloadButton.style.marginLeft = '10px'; // Add some spacing

      // Add an event listener to the button
      downloadButton.onclick = () => {
        downloadRandomLink(extractedLinks);
      };

      // Append the button to the container (or near it)
      // We'll append it after the paragraph for better placement
      container.parentNode.insertBefore(downloadButton, container.nextSibling);
    } else {
      console.log("No links found within a .link-list-container.");
    }
  });
});