Unable to trigger ng-click event on svg created by D3 framework

I am currently working with D3 and Angular, trying to insert text elements into my svg and have an ng-click event on them to trigger functions in my controller. Unfortunately, the ng-click event does not seem to be firing at all. I have attempted to use $compile as recommended in various posts:

  • How do I use angularjs directives in generated d3 html?
  • Angular ng-click's inside a dynamically created d3 chart are not working

Unfortunately, none of those solutions have worked for me. It seems that $compile is making some changes because it adds the attributes role="button" and tabindex="0" to my element like this:

Before $compile:

<svg>
   <text y="30" cursor="pointer" ng-click="alert('clicked')">CLICK ME</text>
</svg>

After $compile:

<svg>
   <text y="30" cursor="pointer" ng-click="alert('clicked')" role="button" tabindex="0">CLICK ME</text>
</svg>

I'm starting to think that something else on the page might be intercepting the click event. It appears that Angular has added a click handler to the root HTML element, which is something I have not noticed before.

https://i.sstatic.net/LViEa.png

This is the directive code I am using:

.directive('clickMe', function ($compile) {
  return {
    restrict: 'A',
    link: function (scope, element, attributes) {
      var svg = d3.select(element[0])
        .append('svg');
        svg.append('text')
          .text('CLICK ME')
          .attr('y', '30')
          .attr('cursor', 'pointer')
          .attr('ng-click', 'alert(\'clicked\')');

      var compiledSvg = $compile(svg.node())(scope);
      element[0].children[0].replaceWith(compiledSvg[0]);
})

Here is a jsfiddle showcasing the issue with the versions of D3 and Angular I am using: https://jsfiddle.net/soultrip/604pts5v/3/

Answer №1

It seems that the alert function may not be accessible within your template scope. It would be best to create a custom method within your directive's scope and use it with the ngClick directive.

var myApp = angular.module('myApp', []);

myApp.directive('myDirective', function($compile) {
  return {
    restrict: 'A',
    link: function(scope, element, attributes) {
      let svg = d3.select(element[0])
        .append('svg');
      svg.append('text')
        .text('CLICK HERE')
        .attr('y', '30')
        .attr('cursor', 'pointer')
        .attr('ng-click', 'showMessage(\'clicked\')');
      let compiledSvg = $compile(svg.node())(scope);
      element[0].children[0].replaceWith(compiledSvg[0]);

      scope.showMessage = function(msg) {
        alert(msg);
      };
    }
  }
});

Visit this link for an example

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