Need help with modification of print plus widget

QiranLiang

Hi,

I'm trying to use our own print service in the print plus widget. But later I found out that it doesn't execute the "Get Layout Templates Info" GP services like the WAB print widget did.  I need some help with adding the "Get Layout Templates Info" in there. 

I tried to add the code 

LayerInfos, in the functions 

and then 

LayerInfos.getInstance(this.map, this.map.itemInfo)
  .then(lang.hitch(this, function(layerInfosObj) {
    this.layerInfosObj = layerInfosObj;
    return all([this._getPrintTaskInfo(), this._getLayerTemplatesInfo()])
      .then(lang.hitch(this, function(results) {
        var taksInfo = results[0],
          templatesInfo = results[1];
        if (templatesInfo && !templatesInfo.error) {
          var parameters = templatesInfo && templatesInfo.results;