How can lazy loading of images be implemented in HTL code in AEM 6.5?

Looking to implement a Javascript for lazy loading images on a website in AEM 6.5. How should I proceed?

I've set up a dialog for the component and added the necessary Javascript in clientlibs in AEM 6.5. What modifications do I need to make in the HTL code to enable lazy loading of images?

Answer №1

The AEM Core WCM Components provide built-in support for lazy loading of images:

  • Lazy loading is enabled for Image (v3) using the browser's native capabilities. Check out an example here
<img ... loading="${image.lazyEnabled ? 'lazy' : ''}" ...
  • For Image (v2), lazy loading can be achieved through JavaScript. See the example markup and JS code
<div ...
    data-cmp-lazy="${image.lazyEnabled}"
    data-cmp-lazythreshold="${image.lazyThreshold}"
    ...
update = function() {
    if (that._properties.lazy) {
        if (isLazyVisible()) {
            loadImage();
        }
    } else {
        loadImage();
    }
};

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