Simple Dynamic Slideshow With jQuery And JSON - Slider.js

A simple jQuery plugin to dynamically generate a crossfading image slideshow from either local or remote JSON file.

Features:

• Easy to implement.
• Responsive design.
• Allows multiple slideshow instances on a page.
• Beautiful loader.

How to use it:

1. Create a container to hold the slideshows.

<div class="galleries imageSlider"></div>

2. Define your own image data in the images.json as follows:

// images.json
{
  "data": [
    // slideshow 1
    [
      {
        "url": "1.jpg",
        "alt": "Image Alt 1"
      },
      {
        "url": "2.jpg",
        "alt": "Image Alt 2"
      },
      {
        "url": "3.jpg",
        "alt": "Image Alt 3"
      },
      // ...
    ],
    // slideshow 2
    [
      {
        "url": "4.jpg",
        "alt": "Image Alt 4"
      },
      {
        "url": "5.jpg",
        "alt": "Image Alt 52"
      },
      {
        "url": "6.jpg",
        "alt": "Image Alt 6"
      },
      // ...
    ],
  ]
}

3. Load the main script slider.js after jQuery.

<script src="/path/to/cdn/jquery.min.js"></script>
<script src="slider.js"></script>

4. The necessary CSS styles.

.galleries {
  width: 100%;
  margin-top: 150px;
}

/* Loader */

@keyframes glowAnim {
    0% { 
      opacity: 1;
      background-color: #ff4500;
      transform: scale(100%);
    }
    50% { 
      opacity: 0.8;
      background-color: #ff3c00;
      transform: scale(125%);
    }
    100% { 
      opacity: 1;
      background-color: #ff4500;
      transform: scale(100%);
    }
}

@keyframes rotateAnim {
    0%   { transform: rotate(-360deg);}
    100% { transform: rotate(0deg);}
}

@keyframes traversalAnim {
    0%   { transform: rotate(-360deg) translate(0, 0);}
    50%  { transform: translate(30px 10px);}
    100% { transform: rotate(0deg) translate(0, 0); }
}

.loader-container {
  height: calc(60vh - 150px);
  display: flex;
  align-items: center;
}

.loader {
  position: relative;
  margin: 0 auto;
  width: 200px;
  height: 200px;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: rotateAnim 3s linear infinite;
}

.loader__sun,
.loader__earth,
.loader__earth::after,
.loader__jupiter {
  border-radius: 50%;
}

.loader__sun {
  width: 50px;
  height: 50px;
  background-color: orangered;
  animation: glowAnim 3s ease-in-out infinite;
}

.loader__jupiter {
  position: absolute;
  left: 0;
  width: 30px;
  height: 30px;
  background-color: rgb(218, 142, 30);
  content: '';
}

.loader__earth {
  position: absolute;
  top: 50px;
  right: 40px;
  width: 15px;
  height: 15px;
  background-color: #20859e;
  content: '';
  animation: rotateAnim 3s backwards infinite;
}

.loader__earth::after {
  position: absolute;
  top: 20px;
  left: 20px;
  width: 8px;
  height: 8px;
  background-color: #3a3a3a;
  content: '';
}

/* Loader end */

.slider {
  position: relative;
  height: calc(100vh - 150px);
  margin: 0 auto 50px;
  background-color: #000;
}

.slider .image,
.slider .image .image__caption {
  transition: 0.8s ease-in-out;
}

.slider .image img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.image__caption {
  position: absolute;
  bottom: 3%;
  right: 3%;
  padding: 10px 20px;
  font-size: 20px;
  background-color: #fff;
}

.image__caption h3 {
  margin: 0;
}

.image:not(.active),
.image__caption:not(.active) {
  opacity: 0;
}

.slider .image.active img,
.slider .image.active .image__caption {
  opacity: 1;
}

.slider button {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  color: inherit;
  border: none;
  padding: 0;
  font: inherit;
  cursor: pointer;
  outline: inherit;
}

.slider button::after {
  position: relative;
  content: url('./arrow.svg');
}

.slider button.prev {
  transform: rotate(180deg) translateY(25px);
}

.slider .next {
  right: 0;
}

.slider button[disabled],
.slider button[disabled=disabled] {
  opacity: 0.6;
  transition: opacity 0.5s ease-in-out;
  pointer-events: none;
}

5. Use a remote data source instead.

const remoteJson =  {
    url: 'http://localhost:5000/images',
    method: 'post',
    headers: {"Content-Type": "application/json"},
    dataType: 'json'
}
const imageResource = remoteJson

Changelog:

2021-10-10

• minor fix

2021-10-08

• add conditions

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This awesome jQuery plugin is developed by miklos-sz. For more Advanced Usages, please check the demo page or visit the official website.