ES6 Class - Call method from within event handler

I am trying to write an ES6 class for an interactive calendar on my current project.

The Class looks similar to the below:

class Calendar {

constructor (s) {

    this.eventButtons = s.eventButtons;
    this.eventButtons.forEach(button => button.addEventListener('click', this.method1);
    this.eventBoxes = s.eventBoxes;


method1 (e) {
    e.preventDefault();
    this.method2(e.target.href);
}

method2 (url) {
    console.log(url);
}

}


export default Calendar;

I know that the context of the 'this' keyword has changed from the constructor to the button which has been clicked within the method1 function. However I don't know how to keep the context of the button and the constructor within the same function. I tried changing the button event listener code to the following:

this.eventButtons.forEach(button => button.addEventListener('click', this.method1).bind(this);

But this just switches the context of the 'this' keyword to the constructor rather than the button. I need to use both in my function.

Any ideas? I'm hoping this is quite a common issue?