Exception thrown in Ember canary (3.1)

[cibernox]

The exception is that this._bubbleEvent is not a function:

ember-native-dom-event-dispatcher/addon/index.js

Line 72 in 8c10506

result = this._bubbleEvent(view, event, eventName);

Steps to reproduce it:

1. Clone https://github.com/cibernox/ember-basic-dropdown
2. Update to canary: "ember-source": "http://builds.emberjs.com/canary/daily/20180110.tgz",
3. Boot the app without fastboot (which is also broken): FASTBOOT_DISABLED=true ember serve
4. Interact with the dropdown in the top of the page and see the error being logged many times.

[cibernox]

@rwjblue I can fix it easily by just adding a check, but I'd like to understand what changed in 3.1 to make this fail.

[rwjblue]

Ember canary (and soon beta) removed support for eventManager, and did some additional cleanup resulting in_bubbleEvent not being a function any longer.

[rwjblue]

This was done in emberjs/ember.js#16099

[rwjblue]

We need to make this addon a noop when using Ember 3.0+ (Ember internally supports native event handling when jQuery is not present)...

[cibernox]

I can take care. How would you do it? With ember-version-checker and a funnel to completely remove everything in the addon?

[rwjblue]

I think I would use ember-cli-version-checker to detect Ember version and do something like this:

module.exports = {
  name: 'ember-native-dom-event-dispatcher',
  
  init() {
    this._super && this._super.init.apply(this, arguments);

    let checker = new VersionChecker(this);  
    this._shouldDisable = checker.forEmber().gt('3.0.0-beta.2');
  },

  treeFor(type) {
    if (this._shouldDisable) {
      return null;
    }

    return this._super.treeFor.apply(this, arguments);
  }
}