mousewheel event not working in Firefox 20

[spaquette]

If I use dojo/on to attach an event for mousewheel, it won't work for Firefox. I have to explicitly attach an event for DOMMouseScroll to get an event to work in Firefox.

In this super simple test, if you scrollwheel over the DIV, the console will show "mousewheel!" in Chrome and IE, but only "DOMMouseScroll!" in Firefox (each message is attached to the appropriate event).

I haven't confirmed if older Dojo releases and/or older Firefoxes are having the same issue. Searching the bugs seemed to suggest this was intended to be normalized, but I'm not sure if it was left separate on purpose.

[spaquette]

Firefox Mousewheel Test

[spaquette]

Since I know OS can matter: It's happening on Windows 7 64-bit, don't have access to another OS to try.

[spaquette]

I dug at this some more, and came up with this.

• Firefox will support wheel and DOMMouseScroll, but not mousewheel.
• Chrome will support mousewheel, but not wheel nor DOMMouseScroll.
• IE9 supports wheel. (Unsure about the other two.)
• IE8 supports mousewheel in a haphazard manner, but not wheel nor DOMMouseScroll.

I'm not sure it makes sense to have mousewheel and wheel work for one another, but if that's not done, to get multibrowser support at least 2 event handlers have to be set up to deal with the Chrome/FF difference.

[dylan]

Given that no one has shown interest in creating a patch in more than 3 years, I'm closing this as patchwelcome. Please let us know if you would like to get involved in helping make this change to Dojo!