nopaque/web/app/static/js/nopaque.InteractionElement.js

class InteractionElement {
  constructor(htmlId="",
              checkStatus=true,
              disabledBefore=true,
              disabledAfter=false,
              hideBefore=true,
              hideAfter=false) {
    this.htmlId = htmlId;
    this.element = (htmlId) => {this.element = document.getElementById(htmlId);}
    this.checkStatus = checkStatus;
    this.callbacks = {};
    this.disabledBefore = disabledBefore;
    this.disabledAfter = disabledAfter;
    this.hideBefore = hideBefore;
    this.hideAfter = hideAfter;
    this.element(this.htmlId);
  }

  setCallback(trigger, callback, bindThis, args=[]) {
    this.callbacks[trigger] = {
                                 "function": callback,
                                 "bindThis": bindThis,
                                 "args": args
                              };
  }

  bindThisToCallback(trigger) {
    let callback = this.callbacks[trigger];
    let boundedCallback = callback["function"].bind(callback.bindThis);
    return boundedCallback;
  }
}