How to execute Widget-action automatically after page loads?

[TobiasFimpel1]

Hi all. I would love to be able to open a web app with a widget open AND already executed with some parameters. In my specific case this would be Robert Scheitlin, GISP​​​ 's awesome Identify Widget, so that when user opens the app he/she is presented with a map and a dashboard-like list of features (e.g. incidents, projects, etc.). Using browser debug tools I can see the query that is sent to the server with a number of parameters, but that's pretty much where my dev. skills end. How/where would I even start placing a function that makes that call after the page has fully loaded?

I think this same idea can be applied to many widgets, for example charts, or elevation profile, etc. Thanks for any help/suggestions/comments!

[RobertScheitlin__GISP]

Tobias,

   This is a pretty involved request. So let me get some details before I can even begin to point you in the right direction.

1. Are you wanting to supply variable that are dynamic and possibly coming from the URL or are you talking something more static and coming from the identifyWidgets json file?
2. Will you have the Identify widget preloaded using openAtStart=true?

[TobiasFimpel1]

Robert:

#1 - a static, hard coded query in some place is absolutely sufficient in my case *

#2 - I assume openAtStart=true makes it simpler, so yes. Either way works, though.

Some more background: Currently a user needs to open this app​ that shows capital projects as polygon features (sorry, really early prototype). To get a list of all the capital projects the user needs to use the Identify Widget and draw a large polygon around the general area. He then gets this really nice list in the "Results" tab, with hover effects and all sorts of good stuff (thank you!). What I want to accomplish is that the nice "Results" list is there in the first place already.

*I can see that the Identify Widget make a call like http://...[my server + service] ...query?f=json&where=&returnGeometry=true&spatialRel=esriSpatialRelIntersects&geometry=%7B%22rings%22%3A%5B%5B%5B-10383528.531827696%2C5615152.250596391%5D%2C%5B-10383528.531827696%2C5622318.221998118%5D%2C%5B-10369846.303764667%2C5622318.221998118%5D%2C%5B-10369846.303764667%2C5615152.250596391%5D%2C%5B-10383528.531827696%2C5615152.250596391%5D%5D%5D%2C%22spatialReference%22%3A%7B%22wkid%22%3A102100%7D%7D&geometryType=esriGeometryPolygon&inSR=102100&outFields=*&outSR=102100 . Hard coding this url in some place would work just fine for me.

Thank you very much. Tobias

[RobertScheitlin__GISP · Accepted solution]

Tobias,

  Well based on your use case this was a lot simpler then I thought. In your \server\apps\xx\widgets\Identify\widget.js change your startup function to look like this (lines 3 through 6):

      startup: function () {
        this.inherited(arguments);
        if(this.config.identifyGeom){
          html.setStyle(this.btnClear, 'display', 'block');
          this.identifyGeom = new Polygon(this.config.identifyGeom);
          this.identifyFeatures(this.identifyGeom);
        }
      },

Then add this to your \server\apps\xx\configs\Identify\config_Identify.json:

"identifyGeom": {"rings":[[[-10383528.531827696,5615152.250596391],[-10383528.531827696,5622318.221998118],[-10369846.303764667,5622318.221998118],[-10369846.303764667,5615152.250596391],[-10383528.531827696,5615152.250596391]]],"spatialReference":{"wkid":102100}},

[TobiasFimpel1]

Robert, all I can say is: you rock!

Thanks again,

Tobias