topic Re: How to get widget's config.json inside isFeatureSupported() in Web AppBuilder Custom Widgets Questions

How to get widget's config.json inside isFeatureSupported()

KevinTelles — Fri, 21 Aug 2020 15:34:19 GMT

I am building a FeatureAction for my custom widget. I want to allow only features of services defined in the widget's config.json to have access to this FeatureAction. So I need the contents of the config.json file.

I could get it from the widget object using the WidgetManager, problem is that when the widget is not loaded the object won't be found. I don't want to force the user to open the widget before using the FeatureAction. Is there a way to accomplish this?

Here's a conceptual and simplified example of what I am trying to accomplish.

isFeatureSupported: function(featureSet) {
   if (featureSet.features.length !== 1)
      var feature = featureSet.features[0]
      var config = getWidgetConfig() // how?
      return config.supportedServices.includes(feature.layer.url)
},

Re: How to get widget's config.json inside isFeatureSupported()

RobertScheitlin__GISP — Sun, 12 Dec 2021 10:47:02 GMT

Kevin,

How would the widget not be loaded if this is a feature action of that widget?...

I use a test like this to make sure the action is only shown for a particular widget.

    isFeatureSupported: function(featureSet, layer){
      var supported = false;
      supported = featureSet.features.length > 1 && layer;
      var tWidget = WidgetManager.getInstance().getWidgetById(this.widgetId);
      if(tWidget && tWidget.state === 'active'){
        return supported;
      }else{
        return false;
      };
    },‍‍‍‍‍‍‍‍‍‍

Re: How to get widget's config.json inside isFeatureSupported()

KevinTelles — Fri, 21 Aug 2020 16:39:08 GMT

Robert Scheitlin, GISP escreveu:

How would the widget not be loaded if this is a feature action of that widget?...

I don't know. `getWidgetById()` only works after I open the widget. The code you provided actually forces the user to open and keep the widget open for the FeatureAction to work.

Edit: I found a solution in case anyone is curious:

_getWidgetObj: function(widgetId) {
   return this.appConfig.widgetOnScreen.widgets
      .concat(this.appConfig.widgetPool.widgets)
      .find(function(widget){
         return widget.id === widgetId
      })
},

The function above will find the widget object regardless of it being loaded or not.

Re: How to get widget's config.json inside isFeatureSupported()

RobertScheitlin__GISP — Fri, 21 Aug 2020 16:50:14 GMT

Kevin,

Here is a more simple one line solution:

this.appConfig.getConfigElementById(this.widgetId).config