Add custom button to Galleria

I want to add a 'Buy Now' button to Galleria which will trigger adding the im开发者_运维百科age to a visitors cart.

I have the cart code already set up but I am struggling to figure out how to add the custom button to Galleria.

I am currently using the classic theme and have added the image into the map.png. I can set up the CSS no problem but can't figure out how to code the extension to Galleria.

Any help greatly appreciated!

You could attach a buy url to the data object and then assign the url to the button on the image event:

HTML

<div>
  <img src="one.jpg">
  <a href="buyone.html">Buy now</a>
</div>
<div>
  <img src="two.jpg">
  <a href="buytwo.html">Buy now</a>
</div>

CSS (example, style as you wish)

.galleria-button {
    z-index:3;
    padding:5px 10px;
    background:#000;
    color:#fff;
    position:absolute;
    top:20px;
    left:20px;
    cursor:pointer;
}

JS

$('#galleria').galleria({
  dataConfig: function(img) {
    // return a new buylink key that points to the 
    // next anchor’s href attribute
    return { buylink: $(img).next().attr('href') }; 
  },
  extend: function() {

    // the current buy link
    var buy;

    // create the button and append it
    this.addElement('button').appendChild('container','button');

    // Add text & click event using jQuery
    this.$('button').text('Buy now').click(function() {
        window.location = buy;
    });

    // change the buy link on image
    this.bind('image', function(e) {
      buy = this.getData(e.index).buylink;
    });
  }
});

you should consider building your own theme. Galleria is 'extensively extendable', and you can add your cart button in the init function of your theme