HTML, CSS en JavaScript Modal popup

Door Tim Wolf op 06-06-2016 18:04 gewijzigd op 07-06-2016 17:34

1.489 views

Hallo PHPHulp,

Ik heb weer een vraagje: Hoe kan ik de gebruiker waarschuwen door middel van JavaScript als het tabblet wordt gesloten, alleen als de Modal geopend is?

Huidige codes:


<!DOCTYPE html>
<html>
<head>
<style>
/* The Modal (background) */
.modal {
    display: none; /* Hidden by default */
    position: fixed; /* Stay in place */
    z-index: 1; /* Sit on top */
    left: 0;
    top: 0;
    width: 100%; /* Full width */
    height: 100%; /* Full height */
    overflow: auto; /* Enable scroll if needed */
    background-color: rgb(0,0,0); /* Fallback color */
    background-color: rgba(0,0,0,0.4); /* Black w/ opacity */
    -webkit-animation-name: fadeIn; /* Fade in the background */
    -webkit-animation-duration: 0.4s;
    animation-name: fadeIn;
    animation-duration: 0.4s
}

/* Modal Content */
.modal-content {
    position: fixed;
    bottom: 0;
    background-color: #fefefe;
    width: 100%;
    -webkit-animation-name: slideIn;
    -webkit-animation-duration: 0.4s;
    animation-name: slideIn;
    animation-duration: 0.4s
}

/* The Close Button */
.close {
    color: white;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close:hover,
.close:focus {
    color: #000;
    text-decoration: none;
    cursor: pointer;
}

.modal-header {
    padding: 2px 16px;
    background-color: #5cb85c;
    color: white;
}

.modal-body {padding: 2px 16px;}

.modal-footer {
    padding: 2px 16px;
    background-color: #5cb85c;
    color: white;
}

/* Add Animation */
@-webkit-keyframes slideIn {
    from {bottom: -300px; opacity: 0} 
    to {bottom: 0; opacity: 1}
}

@keyframes slideIn {
    from {bottom: -300px; opacity: 0}
    to {bottom: 0; opacity: 1}
}

@-webkit-keyframes fadeIn {
    from {opacity: 0} 
    to {opacity: 1}
}

@keyframes fadeIn {
    from {opacity: 0} 
    to {opacity: 1}
}
</style>
</head>
<body>

<h2>Bottom Modal</h2>

<!-- Trigger/Open The Modal -->
<button id="myBtn">Open Modal</button>

<!-- The Modal -->
<div id="myModal" class="modal">

  <!-- Modal content -->
  <div class="modal-content">
    <div class="modal-header">
      <span class="close">&times</span>
      <h2>Modal Header</h2>
    </div>
    <div class="modal-body">
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
    </div>
    <div class="modal-footer">
      <h3>Modal Footer</h3>
    </div>
  </div>

</div>

<script>
// Get the modal
var modal = document.getElementById('myModal');

// Get the button that opens the modal
var btn = document.getElementById("myBtn");

// Get the <span> element that closes the modal
var span = document.getElementsByClassName("close")[0];

// When the user clicks the button, open the modal 
btn.onclick = function() {
    modal.style.display = "block";
}

// When the user clicks on <span> (x), close the modal
span.onclick = function() {
    modal.style.display = "none";
}

// When the user clicks anywhere outside of the modal, close it
window.onclick = function(event) {
    if (event.target == modal) {
        modal.style.display = "none";
    }
}
</script>

</body>
</html>


<script type="text/javascript">
     var popit = true;
     window.onbeforeunload = function() { 
          if(popit == true) {
               popit = false;
               return "Are you sure you want to leave?"; 
          }
     }
</script>

Dus hoe kan ik ervoor zorgen dat als de modal actief is dat als je op F5 of reload klikt of het tabblet sluit dat hij die Javascript popup laat zien?
En als de popup weg en op reload klikt dat hij het gewoon weer doet?

Mvg,
Tim

Bronnen:
http://www.w3schools.com/howto/tryit.asp?filename=tryhow_css_modal_bottom
http://kbeezie.com/cross-browser-exit-pop