Possible to attach event handlers to widgets in theme/plugin?

[hawm]

About the Widget and Component:

How different are Ember component and Discourse widget?

Components are broadly used across most of Discourse. Where widgets come in useful is on some of our most highly-trafficked elements, such as the topic post stream and the header with its multiple menus. You’ll often see widgets used in plugins and themes to add to or modify existing widgets. Take for example this widget in the discourse-calendar plugin: This is a button rendered in the original post of a topic. It needs to be a widget because the post itself is rendered as a widget for per…