Image slider

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Here's a simple image slider written 100% in JavaScript and jQuery. It converts any div elements of class "image-slider" containing img elements into a slider like the one below. You can use your own CSS rules to give the next/prev links a nicer style and make a frame around the image. The images should all be the same size for it to work properly. The code is in our Git repository here (Github here). Just copy the JavaScript into your wiki's MediaWiki:Common.js article, and any CSS rules into your wiki's MediaWiki:Common.css article.

Configuration options

There are a few configuration options which you can include in the slider element's data attributes, using the syntax shown in the usage section below. The available configuration options are as follows:

Name Default Description
thumbs 0 The pixel size of the thumbnails shown below the sliding image (0 means don't show thumbnails)
direction 1 Specifies whether the images' automatically slide to the left (-1) or right (1)
delay 5 The number of seconds delay until the image automatically slides to the next image
duration 1000 The number of milliseconds that the transition effect takes (note that this must be less than the delay)

Usage

In the wiki you can use image links as follows:

<div class="image-slider" data-thumbs="100" data-direction="-1">
    [[File:Butterfly3.jpg|512px]]
    [[File:YellowButterfly.jpg|512px]]
    [[File:MonarchOnPinkTree3.jpg|512px]]
    [[File:Butterfly1.jpg|512px]]
</div>


Here's an example of a pure HTML page which has the links to the scripts and images included:

<!DOCTYPE html>
<html lang="en">
   <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
   <head>
      <title>Image Slider</title>
      <script src="http://code.jquery.com/jquery-1.11.1.min.js" type="text/javascript"></script>
      <script src="https://code.organicdesign.co.nz/extensions/raw/master/jQuery/ImageSlider.js" type="text/javascript"></script>
   </head>
   <body>
      <div class="image-slider" data-thumbs="100">
         <img src="http://www.organicdesign.co.nz/files/thumb/1/12/Yellow_caterpillar_with_red_face.jpg/500px-Yellow_caterpillar_with_red_face.jpg" />
         <img src="http://www.organicdesign.co.nz/files/thumb/f/f2/Red_hairy_caterpillar.jpg/500px-Red_hairy_caterpillar.jpg" />
         <img src="http://www.organicdesign.co.nz/files/thumb/1/17/Green_and_red_caterpillar_2.jpg/500px-Green_and_red_caterpillar_2.jpg" />
         <img src="http://www.organicdesign.co.nz/files/thumb/1/13/Black_caterpillar_with_yellow_stripes_1.jpg/500px-Black_caterpillar_with_yellow_stripes_1.jpg" />
         <img src="http://www.organicdesign.co.nz/files/thumb/3/39/Yellow_hairy_caterpillar_2.jpg/500px-Yellow_hairy_caterpillar_2.jpg" />
      </div>
   </body>
</html>


Example

Here's a working example which has the following syntax.

<div class="image-slider" data-thumbs="100">
  [[File:Butterfly3.jpg|520px]]
  [[File:Orange and yellow butterfly 1.jpg|520px]]
  [[File:Butterfly1.jpg|520px]]
  [[File:Blue butterfly on chia.jpg|520px]]
  [[File:2015 red butterfly 2.jpg|520px]]
</div>


Butterfly3.jpg Orange and yellow butterfly 1.jpg Butterfly1.jpg Blue butterfly on chia.jpg 2015 red butterfly 2.jpg


CSS styles

If you want to use the same CSS as this working example, the rules are as follows. Or you can see the CSS class attributes used here to make your own rules.

/* style for next/prev links in "Image slider" page */
.image-slider .is-next, .image-slider .is-prev {
    background-color: black;
    color: white;
    text-decoration: none;
    outline: 0;
    font-size: 15px;
    font-weight: bold;
    -moz-border-radius: 11px;
    -webkit-border-radius: 11px;
    -khtml-border-radius: 11px;
    border-radius: 11px;
    padding: 5px 14px;
    margin: 5px;
    -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=50)"; /* IE 8 */
    filter: alpha(opacity=50);  /* IE 5-7 */
    -moz-opacity: 0.5;          /* Netscape */
    -khtml-opacity: 0.5;        /* Safari 1.x */
    opacity: 0.5;               /* Good browsers */
}
.image-slider .is-next:hover, .image-slider .is-prev:hover {
    text-decoration: none;
    outline: 0;
    -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)";
    filter: alpha(opacity=100);
    -moz-opacity: 1;
    -khtml-opacity: 1;
    opacity: 1;
}
.image-slider .thumbs {
    width: 525px !important;
}
.image-slider .thumbs img {
    margin: 5px 5px 0 0;
}

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