I want to add a click event in chart, here is my js code,

    render_top_customer_graph:function(){
     var self = this
      var ctx = self.$(".top_user");
          rpc.query({
              model: "request.request",
              method: "get_the_top_customer",
          }).then(function (arrays) {


        var data = {
          labels: arrays[1],
          datasets: [
            {
              label: "Ticket Count",
              data: arrays[0],
              backgroundColor: [
                "rgba(255, 99, 132,1)",
                "rgba(54, 162, 235,1)",
                "rgba(75, 192, 192,1)",
                "rgba(153, 102, 255,1)",
                "rgba(10,20,30,1)"
              ],
              borderColor: [
               "rgba(255, 99, 132, 0.2)",
                "rgba(54, 162, 235, 0.2)",
                "rgba(75, 192, 192, 0.2)",
                "rgba(153, 102, 255, 0.2)",
                "rgba(10,20,30,0.3)"
              ],
              borderWidth: 1
            },

          ]
        };

//options
        var options = {
          responsive: true,
          title: {
            display: true,
            position: "top",
            text: "Helpdesk User vs Requests",
            fontSize: 18,
            fontColor: "#121"
          },
          legend: {
            display: true,
            position: "bottom",
            labels: {
              fontColor: "#333",
              fontSize: 16
            }
          },
          scales: {
            yAxes: [{
              ticks: {
                min: 0
              }
            }]
          }
        };

        //create Chart class object
        var chart = new Chart(ctx, {
          type: "horizontalBar",
          data: data,
          options: options,
        });
      });
      },

xml file: