Click and impression tracking code for espots

espot-track.js

if (typeof handleTrackableClickEvent !== "function") {
  var handleTrackableClickEvent = function(event) {
    var trackableSelector = '.trackable';
    if (event.target) {
      // msMatches is for IE
      var matches = event.target.matches || event.target.msMatches;
      if (matches && matches.call(event.target, trackableSelector)) {

        var et = event.target;

        dLayer = {
          "promo_spot_id": et.getAttribute("promo_spot_id"),
          "promo_spot_name": et.getAttribute("promo_spot_name"),
          "promo_spot_creative": et.getAttribute("promo_spot_creative"),
        };

        postMessageToHost({
          type: "trackContentEspotClick",
          otherData: dLayer
        })
      }
    }
  }

  // set up click tracking
  document.addEventListener(
    'click',
    handleTrackableClickEvent,
    { capture: true, passive: true }
  );
}

// send impression tracking
postMessageToHost({
  type: "trackContentEspotImpression",
  otherData: {
    "promo_spot_id": "promo_spot_id",
    "promo_spot_name": "promo_spot_name",
    "promo_spot_creative": "promo_spot_creative"
  }
});