show-modal.js

/*
Permission is hereby granted, free of charge, to any person obtaining a copy of this
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.
*/

// Global variables
const dialog = document.querySelector("dialog");
const showButton = document.querySelector("dialog + button");
const closeButton = document.querySelector("dialog button");

// "Show the dialog" button opens the dialog modally
showButton.addEventListener("click", () => {
  dialog.showModal();
});

// "Close" button closes the dialog
closeButton.addEventListener("click", () => {
  dialog.close();
});

// Close the dialog when clicking outside of it
dialog.addEventListener("click", (e) => {
  const dialogDimensions = dialog.getBoundingClientRect();
  if (
    e.clientX < dialogDimensions.left ||
    e.clientX > dialogDimensions.right ||
    e.clientY < dialogDimensions.top ||
    e.clientY > dialogDimensions.bottom
  ) {
    dialog.close();
  }
});

// When the DOM is ready
document.addEventListener("DOMContentLoaded", () => {
  // Check if the modal has been shown before
  let modalShown = localStorage.getItem("modalShown") === "true";

  // Show the modal after 15 seconds if
  // the modal hasn't been shown before
  const showModal = () => {
    if (!modalShown) {
      localStorage.setItem("modalShown", true);
      modalShown = true;
      dialog.showModal();
      console.log("Modal shown");
    }
  };

  setTimeout(showModal, 15000);

  // Show the modal if the user leaves
  // the page and hasn't seen the modal before
  document.addEventListener("mouseleave", (event) => {
    if (event.clientY <= 0) {
      showModal();
    }
  });
});