Having trouble getting angular-masonry to function properly as it keeps throwing an error saying it does not recognize the method 'imagesLoaded'

I am currently attempting to integrate the angular-masonry plugin by passy with an infinite scroll directive, but I'm encountering some issues. I have set up a plunk for this here. The console is displaying an error message that reads "TypeError: Object [object Object] has no method 'imagesLoaded'."

Below is my HTML code:

<!DOCTYPE html>
<html>

  <head>
    <script data-require="angular.js@*" data-semver="1.2.13" src="http://code.angularjs.org/1.2.13/angular.js"></script>
    <script data-require="jquery@*" data-semver="2.0.3" src="http://code.jquery.com/jquery-2.0.3.min.js"></script>
    <script data-require="masonry@*" data-semver="2.1.0-7" src="//cdnjs.cloudflare.com/ajax/libs/masonry/2.1.07/jquery.masonry.min.js"></script>
    <script data-require="imagesloaded@*" data-semver="v3.0.2" src="http://desandro.github.io/imagesloaded/imagesloaded.pkgd.min.js"></script>
    <link rel="stylesheet" href="style.css" />
    <script src="angular-masonry.js"></script>
    <script src="myApp.js"></script>
  </head>

  <body ng-app="myApp" ng-controller="DemoController">
    <div masonry="">
      <img class="repeated-img masonry-brick" ng-repeat="image in images" ng-src="http://placehold.it/225x{{image.height}}/{{image.color.bg}}/{{image.color.text}}&text={{image.num}}" />
    </div>
    <div scroll-trigger="loadMore()" threshold="100">Trigger element</div>
  </body>

</html>

Here are my infinite scroll directive and app module:

var myApp = angular.module('myApp', ['wu.masonry']);
myApp.controller('DemoController', function($scope) {
  $scope.images = [
    {num: 1, height:400}, {num: 2, height:250}, 
    {num: 3, height:225}, {num: 4, height:200}, 
    {num: 5, height:200}, {num: 6, height:225}, 
    {num: 7, height:300}, {num: 8, height:250}, 
    {num: 9, height:275}, {num: 10, height:350}, 
    {num: 11, height:450}, {num: 12, height:275}, 
    {num: 13, height:225}, {num: 14, height:250}, 
    {num: 15, height:250}, {num: 16, height:225}]

  $scope.loadMore = function() {
    var last = $scope.images[$scope.images.length - 1].num;
    var heights = [200, 225, 250, 275, 300, 350, 400, 450]
    var colors = ["859994", "51C0C4", "C3D9C6", "EBE2C7", "F5E6D3"]
    var textColor = "ffffff";
    for(var i = 1; i <= 8; i++) {
      var randColor = colors[Math.floor(Math.random()*colors.length)];
      $scope.images.push({num: last + i, height: (heights[Math.floor(Math.random()*heights.length)]), color: {bg: randColor, text: textColor}});
    }
  };
});

myApp.directive('scrollTrigger', function($window) {
    return {
        link : function(scope, element, attrs) {
            var offset = parseInt(attrs.threshold) || 0;
            var e = jQuery(element[0]);
            var doc = jQuery(document);
            angular.element(document).bind('scroll', function() {
                if (doc.scrollTop() + $window.innerHeight + offset > e.offset().top) {
                    scope.$apply(attrs.scrollTrigger);
                }
            });
        }
    };
});

Thank you for your help, I am new to angular so any assistance is appreciated.

Answer №1

To ensure proper functionality, it is important to load jQuery before angular in your web development project. Additionally, using a newer version of masonry (3.1.2) is recommended as imagesloaded may depend on the latest updates:

<script src="//code.jquery.com/jquery-3.5.1.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/masonry/3.1.2/masonry.pkgd.min.js"></script>
<script src="//desandro.github.io/imagesloaded/imagesloaded.pkgd.min.js"></script>
<script src="//code.angularjs.org/1.8.3/angular.js"></script>

As stated in the angular.element(jqLite) documentation:

If jQuery is present, angular.element serves as an alias for the jQuery function. In cases where jQuery is not available, angular.element defaults to Angular's internal subset known as "jQuery lite" or "jqLite."

You can find the source code at (https://github.com/angular/angular.js/blob/v1.8.3/src/Angular.js#L1257):

function bindJQuery() {
  // establish binding with jQuery if available
  jQuery = window.jQuery;
  // revert to jQuery or fallback to jqLite
  if (jQuery) {
    jqLite = jQuery;
    extend(jQuery.fn, {
      scope: JQLitePrototype.scope,
      isolateScope: JQLitePrototype.isolateScope,
      controller: JQLitePrototype.controller,
      injector: JQLitePrototype.injector,
      inheritedData: JQLitePrototype.inheritedData
    });
    // Method syntax:
    //     jqLitePatchJQueryRemove(name, dispatchThis, filterElems, getterIfNoArguments)
    jqLitePatchJQueryRemove('remove', true, true, false);
    jqLitePatchJQueryRemove('empty', false, false, false);
    jqLitePatchJQueryRemove('html', false, false, true);
  } else {
    jqLite = JQLite;
  }
  angular.element = jqLite;
}

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