آموزش ساخت تصاویر لایت باکس

دانلود آموزش طراحی سایت

 آموزش ساخت لایت باکس LightBox

در این مقاله می آموزید که چطور یک گالری تصویر مدرن (LightBox) با استفاده از CSS و جاوا اسکريپت ایجاد کنید

روی یکی از تصاویر زیر کلیک کنید تا Lightbox باز شود :

مثال زیر ترکیبی از کدهای Modal و Slideshow را برای ایجاد Lightbox نشان میدهد :

قدم اول : کد HTML را اضافه کنید.
مثال :

          <!-- Images used to open the lightbox -->
<div class="row">
  <div class="column">
    <img src=" http://articles.tahlildadeh.com/image.axd?picture=img_nature_wide.jpg" onclick="openModal();currentSlide(1)" class="hover-shadow">
  </div>
  <div class="column">
    <img src=" http://articles.tahlildadeh.com/image.axd?picture=img_snow_wide.jpg" onclick="openModal();currentSlide(2)" class="hover-shadow">
  </div>
  <div class="column">
    <img src=" http://articles.tahlildadeh.com/image.axd?picture=img_mountains_wide.jpg" onclick="openModal();currentSlide(3)" class="hover-shadow">
  </div>
  <div class="column">
    <img src="img4.jpg" onclick="openModal();currentSlide(4)" class="hover-shadow">
  </div>
</div>
 
                    <!-- The Modal/Lightbox -->
<div id="myModal" class="modal">
  <span class="close cursor" onclick="closeModal()">×</span>
  <div class="modal-content">
 
    <div class="mySlides" style="display: block;">
      <div class="numbertext">1 / 4</div>
      <img src=" http://articles.tahlildadeh.com/image.axd?picture=img_nature_wide.jpg" style="width:100%">
    </div>
 
    <div class="mySlides" style="display: none;">
      <div class="numbertext">2 / 4</div>
      <img src=" http://articles.tahlildadeh.com/image.axd?picture=img_snow_wide.jpg" style="width:100%">
    </div>
 
    <div class="mySlides" style="display: none;">
      <div class="numbertext">3 / 4</div>
      <img src=" http://articles.tahlildadeh.com/image.axd?picture=img_mountains_wide.jpg" style="width:100%">
    </div>
 
    <div class="mySlides" style="display: none;">
      <div class="numbertext">4 / 4</div>
      <img src="img4_wide.jpg" style="width:100%">
    </div>
 
      <!-- Next/previous controls -->
    <a class="prev" onclick="plusSlides(-1)">❮</a>
    <a class="next" onclick="plusSlides(1)">❯</a>
 
      <!-- Caption text -->
    <div class="caption-container">
      <p id="caption">Nature</p>
    </div>
 
      <!-- Thumbnail image controls -->
    <div class="column">
      <img class="demo active" src="img1.jpg" onclick="currentSlide(1)" alt="Nature">
    </div>
 
    <div class="column">
      <img class="demo" src="img2.jpg" onclick="currentSlide(2)" alt="Snow">
    </div>
 
    <div class="column">
      <img class="demo" src="img3.jpg" onclick="currentSlide(3)" alt="Mountains">
    </div>
 
    <div class="column">
      <img class="demo" src="img4.jpg" onclick="currentSlide(4)" alt="Lights">
    </div>
  </div>
</div>

قدم دوم :   کد CSS را اضافه کنید.
مثال :

 .row > .column {
  padding: 0 8px;
}
 
.row:after {
  content: "";
  display: table;
  clear: both;
}
 
/* Create four equal columns that floats next to eachother */
.column {
  float: left;
  width: 25%;
}
 
/* The Modal (background) */
.modal {
  display: none;
  position: fixed;
  z-index: 1;
  padding-top: 100px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: black;
}
 
/* Modal Content */
.modal-content {
  position: relative;
  background-color: #fefefe;
  margin: auto;
  padding: 0;
  width: 90%;
  max-width: 1200px;
}
 
/* The Close Button */
.close {
  color: white;
  position: absolute;
  top: 10px;
  right: 25px;
  font-size: 35px;
  font-weight: bold;
}
 
.close:hover,
.close:focus {
  color: #999;
  text-decoration: none;
  cursor: pointer;
}
 
/* Hide the slides by default */
.mySlides {
  display: none;
}
 
/* Next & previous buttons */
.prev,
.next {
  cursor: pointer;
  position: absolute;
  top: 50%;
  width: auto;
  padding: 16px;
  margin-top: -50px;
  color: white;
  font-weight: bold;
  font-size: 20px;
  transition: 0.6s ease;
  border-radius: 0 3px 3px 0;
  user-select: none;
  -webkit-user-select: none;
}
 
/* Position the "next button" to the right */
.next {
  right: 0;
  border-radius: 3px 0 0 3px;
}
 
/* On hover, add a black background color with a little bit see-through */
.prev:hover,
.next:hover {
  background-color: rgba(0, 0, 0, 0.8);
}
 
/* Number text (1/3 etc) */
.numbertext {
  color: #f2f2f2;
  font-size: 12px;
  padding: 8px 12px;
  position: absolute;
  top: 0;
}
 
/* Caption text */
.caption-container {
  text-align: center;
  background-color: black;
  padding: 2px 16px;
  color: white;
}
 
img.demo {
  opacity: 0.6;
}
 
.active,
.demo:hover {
  opacity: 1;
}
 
img.hover-shadow {
  transition: 0.3s;
}
 
.hover-shadow:hover {
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);

قدم سوم :   کد جاوا اسکریپت را اضافه کنید.
مثال :

<script>
// Open the Modal
function openModal() {
    document.getElementById("myModal").style.display = "block";
}
 
// Close the Modal
function closeModal() {
    document.getElementById("myModal").style.display = "none";
}
 
var slideIndex = 1;
showSlides(slideIndex);
 
// Next/previous controls
function plusSlides(n) {
    showSlides(slideIndex += n);
}
 
// Thumbnail image controls
function currentSlide(n) {
    showSlides(slideIndex = n);
}
 
function showSlides(n) {
    var i;
    var slides = document.getElementsByClassName("mySlides");
    var dots = document.getElementsByClassName("demo");
    var captionText = document.getElementById("caption");
    if (n > slides.length) {slideIndex = 1}
    if (n < 1) {slideIndex = slides.length}
    for (i = 0; i < slides.length; i++) {
        slides[i].style.display = "none";
    }
    for (i = 0; i < dots.length; i++) {
        dots[i].className = dots[i].className.replace(" active", "");
    }
    slides[slideIndex-1].style.display = "block";
    dots[slideIndex-1].className += " active";
    captionText.innerHTML = dots[slideIndex-1].alt;
}
</script>

نمونه مثال Lightbox: