Show dialog with each external link to confirm

external-links.js

/*
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software and associated documentation files (the "Software"), to deal in the Software
without restriction, including without limitation the rights to use, copy, modify, merge,
publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or
substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/

// This function will create a modal dialog
function createModal(externalUrl) {
  // Create the dialog element
  var dialog = document.createElement('dialog');
  dialog.setAttribute('style', 'position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);');

  // Add content to the dialog
  var dialogContent = `
    <p>Do you want to continue to the external link?</p>
    <p><a href="${externalUrl}" target="_blank">Yes, proceed</a></p>
    <button id="closeDialog">Cancel</button>
  `;
  dialog.innerHTML = dialogContent;

  // Append the dialog to the body
  document.body.appendChild(dialog);

  // Add event listener to the close button
  var closeButton = document.getElementById('closeDialog');
  closeButton.addEventListener('click', function() {
    dialog.close();
  });

  return dialog;
}

// This function will add event listeners to all external links
function addExternalLinkListeners() {
  var allLinks = document.getElementsByTagName('a');

  for (var i = 0; i < allLinks.length; i++) {
    if (allLinks[i].hostname !== window.location.hostname) {
      allLinks[i].addEventListener('click', function(e) {
        e.preventDefault(); // Prevent the default link behavior

        // Create and open the modal dialog
        var dialog = createModal(this.href);
        dialog.showModal();

        // When the dialog is closed, remove it from the document
        dialog.addEventListener('close', function() {
          document.body.removeChild(dialog);
        });
      });
    }
  }
}

// Run the function to add event listeners to external links
addExternalLinkListeners();