JS: AngularJS Masonry Directive. http://plnkr.co/edit/ZuSrSh?p=preview

MasonryWall.Directive.js

define(['angular', 'masonry', 'imagesLoaded', 'lodash'], function(angular, Masonry, imagesLoaded, _){

	'use strict';

	/**
	 * Masonry Directive for a wall of item.
	 * This directive is intended to be used along with ng-repeat directive.
	 * Put masonryWallDir on the container element and pass in a class selector for each item to be laid out.
	 * Pass in optional options via masonryWallOptions.
	 * Put the masonryItemDir next to ng-repeat directive on the item to be repeated.
	 * You're done!
	 * 
	 * @param {String} masonryWallDir        Class selector of each item
	 * @param {Object} masonryWallOptions    Optional options that are directly passed into Masonry
	 */
	angular.module('Directives')
		.directive('masonryWallDir', function(){
			return {
				controller: [
					'$scope',
					'$element',
					'$attrs', 
					function($scope, $element, $attrs){

						var wallContainer, masonryOptions;

						wallContainer = $element[0];

						masonryOptions = _.assign(
							{},
							$scope.$eval($attrs.masonryWallOptions), 
							{ itemSelector: $attrs.masonryWallDir }
						);

						this.masonry = new Masonry(
							wallContainer,
							masonryOptions
						);

						this.masonry.bindResize();

						var self = this;
						this.debouncedReload = _.debounce(function(){
							self.masonry.reloadItems();
							self.masonry.layout();
						}, 100);

					}
				]
			};
		})
		.directive('masonryItemDir', 
			function(){
				return {
					require: '^masonryWallDir',
					link: function(scope, element, attributes, masonryWallDirCtrl){

						imagesLoaded(element, function(){
							if(scope.$first){
								masonryWallDirCtrl.masonry.prepended(element);
							}else{
								masonryWallDirCtrl.masonry.appended(element);
							}
						});

						scope.$on('$destroy', masonryWallDirCtrl.debouncedReload);

					}
				};
			}
		);

});

Great job, thanks a lot for sharing! You should create a repo for this. Looks like the best implementation so far.

@CMCDragonkal, I'm wondering if there's a way to get the instance of Masonry ? I'm already working with Directives that communicate between them, but there's one case in special that's not nested, so I can't require another directive and then call the controller method - I know I can have an intermediate one, but it's too much configuration, for such a small case.

So, I guess this is not a good practice but this is what I'm doing, please correct me if I'm wrong:

$( $element ).data("masonry", self.masonry );

Any suggestion is appreciated, thank you!

@HelderOliveira

Masonry would be attached the DOM element. It may be possible to extract from the DOM. However that's not very elegant. It would best if you attached the Masonry object to a third party service. This will require modification of the container directive. I haven't tried that, but see if both ways works for you.

Douglas Jardine had an issue with modifying Masonry after it's been loaded. So he contributed his version:

$attrs.$observe('masonryWallOptions', function(actual_value) {
    masonryOptions = _.assign(
        {},
        $scope.$eval(actual_value), //$attrs.masonryWallOptions), 
        { itemSelector: $attrs.masonryWallDir }
    );

        self.masonry = new Masonry(
        wallContainer,
        masonryOptions
    );

    self.masonry.bindResize();

    self.debouncedReload = _.debounce(function(){
        self.masonry.reloadItems();
        self.masonry.layout();
    }, 100);
});

The above code replaces: https://gist.github.com/CMCDragonkai/6191419#file-masonrywall-directive-js-L29-L46