How to find out which JavaScript events fired?

Question

I have a select list:

<select id="filter">
  <option value="Open" selected="selected">Open</option>
  <option value="Closed">Closed</option>
</select>

When I select Closed the page reloads. In this case it shows closed tickets (instead of opened). It works fine when I do it manually.

The problem is that the page does not reload when I select Closed with Watir:

browser.select_list(:id => "filter").select "Closed"

That usually means that some JavaScript event is not fired. I can fire events with Watir:

browser.select_list(:id => "filter").fire_event "onclick"

but I need to know which event to fire.

Is there a way to find out which events are defined for an element?

Answer 1

Looks like Firebug (Firefox add-on) has the answer:

• open Firebug
• right click the element in HTML tab
• click Log Events
• enable Console tab
• click Persist in Console tab (otherwise Console tab will clear after the page is reloaded)
• select Closed (manually)

• there will be something like this in Console tab:

  ...
  mousemove clientX=1097, clientY=292
  popupshowing
  mousedown clientX=1097, clientY=292
  focus
  mouseup clientX=1097, clientY=292
  click clientX=1097, clientY=292
  mousemove clientX=1096, clientY=293
  ...
  

Source: Firebug Tip: Log Events