scale-directive

<div class="imgBox" data-ng-repeat="img in imgs">
        <img class="imgPreview" data-ng-src="{{img.url}}" data-scale data-ng-click="active = $id" data-ng-class="{'scaledUp': $id === active}" />
</div>

/* direktive */
var module = angular.module("spotlight");

module.directive("scale", [function() {
    return {
        restrict: "A",
        scope: {
            active: "="
        }
    }
}]);