Reputation: 6660

What's the best jQuery "click a thumbnail and change the main image" module?

Here's what I have (all generated dynamically, if that makes a difference) :

A list of images
A caption for each image
A thumbnail for each image

The page should load with one full-size image and all the thumbnails. When a user clicks a thumbnail, the full-size image shows that new image with its caption. If they click another thumbnail, the picture (and caption) change again.

It's not very complex. I hacked together a solution a few months ago, but I need to do it again and I'm looking at this crappy code and thinking that there has to be a better way (and knowing jQuery, someone else has already done it, and done it well).

Thoughts? Links?

Thanks!

Upvotes: 9

Answers (9)

Evan B

Reputation: 655

I had issues with the replace method. This is hands down the easiest way to do this dynamically.

$('img.thumb').click(function () {
  let clickSrc = $(this).attr('src')

  $('img.large').removeAttr('src')
  $('img.large').attr('src', clickSrc)
})

.image-container {
    display: flex;
    flex-direction: row;
}
.thumbnails {
    display: flex;
    flex-direction: column;
}
img.thumb {
    display: flex;
    max-width: 60px;
    height: auto;
}
img.large {
    display: flex;
    max-width: 400px;
    height: auto;
    margin-left: 20px;
}

<div class="image-container">
  <div class="thumbnails">
      <image class="thumb" src="assets/1.jpg"></image>
        <image class="thumb" src="assets/2.png"></image>
        <image class="thumb" src="assets/3.jpg"></image>
        <image class="thumb" src="assets/4.jpg"></image>
        <image class="thumb" src="assets/5.jpg"></image>
        <image class="thumb" src="assets/6.jpg"></image>
        <image class="thumb" src="assets/7.jpg"></image>
    </div>

    <div class="image-div">
        <image class="large" src="assets/1.jpg"></image>
    </div>
</div>

Upvotes: 0

SJacks

Reputation: 438

A lot of these scripts are out of date and don't work for me plus require a set of different images for thumbnails. I had a serious hunt around and found something very light which is plain js, no need for jquery.

<html>
<head>
<style>
* {margin:0; padding:0; border:0; outline:0; box-sizing:border-box;}
.image, .thumb {width:100%; height:100%;}
#product-image-wrap {position:relative; float:left; width:250px; height:325px; margin:50px 0 50px 50px;}
#product-image {position:relative; float:left; width:250px; height:250px; border:1px solid #d0d0d0; padding:20px; cursor:pointer; display:inline-block; transition:0.9s;}
#product-image:hover {opacity:0.7;}
.product-image-thumbnail {position:relative; float:left; width:55px; height:55px; border:1px solid #d0d0d0; margin-top:20px; padding:10px; cursor:pointer; display:inline-block; transition:0.9s;}
.product-image-thumbnail:hover {opacity:0.7;}
.product-image-thumbnail-spacer {position:relative; float:left; width:10px; height:130px;}
</style>

</head>
<body>

<div id='product-image-wrap'>

<!-- Main -->
<div id='product-image'><img src='http://workshop.rs/demo/gallery-in-4-lines/images/image_01_large.jpg' id='0' class='image' alt='image 0'></div>

<!-- Thumbs -->
<div class='product-image-thumbnail'><img src='http://workshop.rs/demo/gallery-in-4-lines/images/image_01_large.jpg' id='1' class='thumb' onclick='preview(this)' alt='image 0'></div>
<div class='product-image-thumbnail-spacer'></div>
<div class='product-image-thumbnail'><img src='http://workshop.rs/demo/gallery-in-4-lines/images/image_02_large.jpg' id='2' class='thumb' onclick='preview(this)' alt='image 2'></div>
<div class='product-image-thumbnail-spacer'></div>
<div class='product-image-thumbnail'><img src='http://workshop.rs/demo/gallery-in-4-lines/images/image_03_large.jpg' id='3' class='thumb' onclick='preview(this)' alt='image 3'></div>
<div class='product-image-thumbnail-spacer'></div>
<div class='product-image-thumbnail'><img src='http://workshop.rs/demo/gallery-in-4-lines/images/image_04_large.jpg' id='4' class='thumb' onclick='preview(this)' alt='image 4'></div>

</div>

<!-- Javascript -->
<script>
var lastImg = 1;
document.getElementById(lastImg).className = "thumb selected";
function preview(img) {
document.getElementById(lastImg).className = "thumb";
img.className = "thumb selected";
document.getElementById(0).src = img.src;
lastImg = img.id;
}
</script>

</body>
</html>

https://jsfiddle.net/uo6js5v7/

Upvotes: 1

M. Cotter

Reputation: 31

Building off of krembo99's answer he linked here, I wanted to share my solution as I had already uploaded hundreds of photos when my client had requested a feature like this. With that in mind, by adding a few extra lines to the provided code, I was able to get a solution that fit my parameters.

I was also working with smaller images as well, so I had no need to go through creating small & large versions of the same file.

$('.thumbnails img').click(function(){

 // Grab img.thumb class src attribute
 // NOTE: ALL img tags must have use this class, 
 // otherwise you can't click back to the first image.

 var thumbSrc = $('.thumb').attr('src');

 // Grab img#largeImage src attribute
 var largeSrc = $('#largeImage').attr('src');

  // Use variables to replace src instead of relying on file names.
  $('#largeImage').attr('src',$(this).attr('src').replace(thumbSrc,largeSrc));
  $('#description').html($(this).attr('alt'));

});

Here's how my HTML looks.

    <img src="path/to/file1.jpg" id="largeImage" class="thumb">
    <div id="description">1st image Description</div>

    <div class="thumbnails">

     <img src="path/to/file1.jpg" class="thumb" alt="1st image description">
     <img src="path/to/file2.jpg" class="thumb"alt="2nd image description">
     <img src="path/to/file3.jpg" class="thumb" alt="3rd image description">
     <img src="path/to/file4.jpg" class="thumb" alt="4th image description">
     <img src="path/to/file5.jpg" class="thumb" alt="5th image description">

    </div>

Upvotes: 2

Kenco Gold

Reputation: 11

Check out my galleria implementation: Garden design Landscaper in Essex Gallery

Upvotes: 1

krembo99

Reputation: 1479

Most of the answers here are like shooting a fly with a canon !!

$('#thumbs img').click(function(){
    $('#largeImage').attr('src',$(this).attr('src').replace('thumb','large'));
    $('#description').html($(this).attr('alt'));
});

this is all you need .. 4 lines of code .

look here : gallery-in-4-lines

Upvotes: 49