Wijmo 5 - Context Menu on a FlexGrid

HTML

<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
<link rel="stylesheet" href="https://cdn.grapecity.com/wijmo/5.20182.524/styles/wijmo.min.css">
<script src="https://cdn.grapecity.com/wijmo/5.20182.524/controls/wijmo.min.js"></script>
<script src="https://cdn.grapecity.com/wijmo/5.20182.524/controls/wijmo.input.min.js"></script>
<script src="https://cdn.grapecity.com/wijmo/5.20182.524/controls/wijmo.grid.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.7.3/angular.min.js"></script>
<script src="https://cdn.grapecity.com/wijmo/5.20182.524/interop/angular/wijmo.angular.min.js"></script>
<div ng-app="app" ng-controller="appCtrl">
    

    <wj-flex-grid
        control="ctrl.control"
        initialized="initGrid(s)"
        selection-mode="CellRange"
        allow-dragging="0"
        items-source="ctrl.data"
        control="grid"
        initialized="init(grid)">
    </wj-flex-grid>
    
    <button ng-click="do()">
      log ctrl.control
    </button>
    
</div>

CSS

.wj-flexgrid {
     height:300px;
     margin-top: 45px;
}

JavaScript

// define app, include Wijmo 5 directives
var app = angular.module('app', ['wj']);

// controller
app.controller('appCtrl', function ($scope) {
		
   	$scope.ctrl = {};
    $scope.ctrl.data = getData(50);
    
    $scope.initGrid = function(grid){
    	// grid initialized
    }

    $scope.do = function(){
    	console.log($scope.ctrl.control);
    }
});

function getData(count){
	 // create some random data
    var countries = 'US,Germany,UK,Japan,Italy,Greece'.split(','),
        data = [];
    for (var i = 0; i < count; i++) {
        data.push({
            country: countries[i % countries.length],
            downloads: Math.round(Math.random() * 20000),
            sales: Math.random() * 10000,
            expenses: Math.random() * 5000
        });
    }
    
    return data;
}