Uncaught (in promise) TypeError: Cannot read property '__eventTarget' of null

[haleksandre]

When using some type of charts such as GeoChart, the events implementation is throwing the following error:

Uncaught (in promise) TypeError: Cannot read property '__eventTarget' of null

After troubleshooting, it seems that when the chart type is GeoChart the component's data chart doesn't get set before the eventsBinder(self, self.chart, self.chartEvents) gets called.

[haleksandre]

google.visualization.events.addOneTimeListener(self.wrapper, 'ready', function () {
     self.chart = self.wrapper.getChart();
});

It seems with GeoChart this listener gets trigger after the Promise is fufilled, but is fine with BarChart... Haven't tested other charts yet.

[haydenbbickerton]

Thanks for finding and debugging this! Just pushed a fix that should take care of this. Now it waits to bind events until the chart promise is resolved.

[rzb]

I'm getting the same error when binding a "select" event to a bar chart (material). I haven't tracked it down, but my first thought was that it might have something to do with loading data from remote? There's nothing to select when the component is mounted in this case.