430931 - The page is not informed about form filling (no event fired when the form is filled)

Status: RESOLVED INVALID

(Toolkit :: Form Manager, defect)

Description

[naktinis]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9b5) Gecko/2008041514 Firefox/3.0b5
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9b5) Gecko/2008041514 Firefox/3.0b5

Firefox fills forms silently. The DOM is not aware of the changing values. For example, I have a login form where I want to immediately react to the change of content of name and password fields.

First case: you simply open a page where browser remembers your password and username and they are already there without notice.

Second case: you choose from an autocomplete list of name and the password is entered without notice.

For example, a formchange event (or another event conforming to the Web Forms 2.0 standard) could be fired.

Reproducible: Always

Steps to Reproduce:
1. Open a page that has saved some form values.
2. The values are filled.

1. Open a login page that has saved some form values.
2. Choose a username from a list.
3. Password is filled automatically without firing any event.
Actual Results:  
There is no way of knowing that values have changed.

Expected Results:  
Some event should be fired.

Comment 1

[Justin Dolske [:Dolske]]

Events shouldn't fire fire when JS modifies node values. You could probably watch for DOM mutation events, though.

Comment 2

[naktinis]

What do you mean by "JS modified node values" - there's no user JS running? It's Firefox built-in password manager code that modifies the password field value and an some event (like 'input') must be triggered. Just like when you choose a value from the autocomplete dropdown. See: https://bugzilla.mozilla.org/show_bug.cgi?id=320462