Method enable

src/scale-manager/ScaleManager.js:49–56

* Enables the scale manager listener. Will not be enabled if a callback is not supplied. * @param {Function} callback The function to be called on resize events.

(callback)

   * @param {Function} callback The function to be called on resize events.
   */
  enable(callback) {
    if (callback instanceof Function) {
      this.callback = callback;
      this.resizer.enabled = true;
    } else {
      console.warn('Scale Manager was not passed a function');
    }
  }

  /**
   * Disables the scale manager.