Lightweight lazy load images plugin. Only 1kb after gziping. Pure JavaScript, only Angular as dependency.
JavaScript
Latest commit 93e8d3e Apr 9, 2016 @Pentiado Merge pull request #19 from jalenhunter/master
Deregister the attributes observer for angular >= 1.3

README.md

angular-lazy-img

Lightweight lazy load images plugin. Only 1kb after gziping. Pure JavaScript, only Angular as dependency.

Installation

  1. bower install --save angular-lazy-img
  2. Include angular-lazy-img in your HTML.

    <script src="<your-bower-components>/angular-lazy-img/release/angular-lazy-img.js"></script>
  3. Inject the angular-lazy-img module in your application.

    angular.module('your.module', [
        'angularLazyImg'
    ]);

Usage

Just add lazy-img attribute with source to file that you want to lazy load

  <img lazy-img='photo.jpeg' />

If you want show spinner put it in src attribute

  <img src='spinner.gif' lazy-img='photo.jpeg' />

You want to lazy load background image? No problem, add directive to anything you like and it will handle the rest.

  <div lazy-img='photo.jpeg'></div>

If you need to run the image check manually (for example when clicking on tabs that filter your image result), you can trigger it that way:

  $rootScope.$emit('lazyImg:refresh');

On success and error lazyImg will trigger events on $rootScope - lazyImg:success and lazyImg:error, passing as first param image

Configuration

Inside your config require 'lazyImgConfigProvider' and set custom options.

  angular.module('your.module', [
    'angularLazyImg'
  ]).config(['lazyImgConfigProvider', function(lazyImgConfigProvider){
    var scrollable = document.querySelector('#scrollable');
    lazyImgConfigProvider.setOptions({
      offset: 100, // how early you want to load image (default = 100)
      errorClass: 'error', // in case of loading image failure what class should be added (default = null)
      successClass: 'success', // in case of loading image success what class should be added (default = null)
      onError: function(image){}, // function fired on loading error
      onSuccess: function(image){}, // function fired on loading success
      container: angular.element(scrollable) // if scrollable container is not $window then provide it here
    });
  }])

Use a scrollable container in a dynamic page

Just add lazyImgContainer attribute to your scrollable container to be considered when you scroll him.

Author

Copyright 2014, Paweł Wszoła (wszola.p@gmail.com)