How to simulate/trigger a click on the map/view

Question

In the ArcGIS Server JavaScript API v4x, is it possible to simulate or programatically trigger a click on the map at a given location?

I've seen Simulate a mouse-click inside an ArcGIS Online JavaScript Application as a workaround, but in my case I'd like to trigger the view's hitTest function, which runs after the user clicks. This is a shorthand way to get all visible features on the map, without having to iterate through them all and manually run a QueryTask.

Edit: to illustrate why this is useful, I have a map with 7 layers. When I manually click on the map, the view's hitTest function instantly returns the attribute values of all features at the location clicked. See the response.results object in the debugger:

There was no need for me to run 7 asynchronous QueryTask operations then collate the responses after waiting for each to return - the view handles this without requiring a single network request. The view also handles changing layer visibility automatically, so if (eg) one layer was switched off when I clicked, then only 6 graphics would be returned, etc.

Given a known coordinate, is it possible to trigger a click at that location?

Answer 1

Given the coordinate as you stated, you could use the Mapview.toScreen function to get the screen point and then use hitTest which takes either a mouseEvent or a screen point.

Something like this should work.

var mapPoint = {
  x: -49.97,
  y: 41.73,
  spatialReference:{
     wkid: 4326
  }
};

var screenPoint = view.toScreen(mapPoint);

view.hitTest(screenPoint).then(function (response) {
    if (response.results.length) {
      var graphic = response.results.filter(function (result) {
        // check if the graphic belongs to the layer of interest
        return result.graphic.layer === myLayer;
      })[0].graphic;

      // do something with the result graphic
      console.log(graphic.attributes);
    }
  });

Edit

Just in case anyone is looking for other web mapping frameworks to this with,
I got to this solution because I knew of leaflet.js' map.latLngToContainerPoint function which does the same thing as MapView.toScreen