379763 - Need way to determine if a given element has an event handler of a certain type

Status: RESOLVED FIXED

(Core :: DOM: Events, defect)

Description

[Aaron Leventhal]

In order to fix bug 301621 I need a way, in C++, to determine if a given element has an onclick handler (assigned from JS).

Eventually we'll be expanding this further, but for now onclick is enough.

As it stands we only expose objects with an onclick action if it's an inline onclick="foo()".

If this is very slow, another possibility is for us to just get a list of all the elements in the current document with an onclick handler, and then we can go create an accessible object for each. But that would make mozilla/accessible more complicated.

Comment 1

[Aaron Leventhal]

Note: it doesn't matter if it was added by JS or C++, or whatever.

Comment 2

[Olli Pettay [:smaug][[e-mail]](vacation until Nov 16)]

Attachment: possible patch

Comment 3

[Olli Pettay [:smaug][[e-mail]](vacation until Nov 16)]

Attachment: possible patch

Aaron, could you test this?

Comment 4

[Aaron Leventhal]

Yes, it works great. I developed a patch based on it over in bug 301621 -- seeking your r= on that.

Comment 5

[Johnny Stenback (:jst)]

Comment on attachment 263773 [details] [diff] [review]
possible patch

Looks good to me.