- Lightbox လုပ်နည်း
CSS နှင့် JavaScript ဖြင့် modal image gallery (lightbox) ကို ဖန်တီးနည်းကို လေ့လာပါ။
Lightbox (ပုံစံပုံပြခန်း)
lightbox ကိုဖွင့်ရန် ပုံများထဲမှ တစ်ခုကို နှိပ်ပါ။
Lightbox တစ်ခုဖန်တီးပါ။
အောက်ဖော်ပြပါ ဥပမာသည် lightbox ကိုဖန်တီးရန်အတွက် Modals နှင့် Slideshows များမှ ကုဒ်များကို ပေါင်းစပ်ထားသည်။
အဆင့် 1) HTML ကိုထည့်ပါ
ဥပမာ
<!-- Images used to open the lightbox -->
<div class="row">
<div class="column">
<img src="img1.jpg" onclick="openModal();currentSlide(1)" class="hover-shadow">
</div>
<div class="column">
<img src="img2.jpg" onclick="openModal();currentSlide(2)" class="hover-shadow">
</div>
<div class="column">
<img src="img3.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">
<div class="numbertext">1 / 4</div>
<img src="img1_wide.jpg" style="width:100%">
</div>
<div class="mySlides">
<div class="numbertext">2 / 4</div>
<img src="img2_wide.jpg" style="width:100%">
</div>
<div class="mySlides">
<div class="numbertext">3 / 4</div>
<img src="img3_wide.jpg" style="width:100%">
</div>
<div class="mySlides">
<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"></p>
</div>
<!-- Thumbnail image controls -->
<div class="column">
<img class="demo" 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>
အဆင့် 2) CSS ကိုထည့်ပါ
ဥပမာ
.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);
}
အဆင့် 3) JavaScript ကိုထည့်ပါ။
ဥပမာ
<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>
Tip: Also check out Modals and Slideshows.