在fancybox2上触发角度控制器功能箭头单击

Question

我用fancybox创建了一个ng-repeat循环图像来显示它们。我添加了一个ng-click来触发控制器功能，该功能定义了所选择的图像＆＃39; var和一切都很好。我正在寻找一种方法来更新所选图像＆＃39;使用箭头更改图像时的var。我尝试过使用ng-change，但到目前为止还没有运气。

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$scope.openPopUp = function(picture) {
  $scope.selectedPicture = picture;
};

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<div class="col-md-4 col-sm-4 mix" ng-repeat="picture in $parent.campaign.pictures">

  <a href="{{picture.facebookPicture.source}}" class="transparent-box campaign-picture-popup" rel="campaign-picture-popup" title="My title" ng-click="openPopUp(picture)">

    <div class="campaign_picturs_grid_col" style="background-image: url('{{picture.facebookPicture.source}}')">
      <div class="campaign_picture_user_info"></div>
    </div>
  </a>

</div>

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