Open Bug 824870 Opened 8 years ago Updated 2 years ago

Provide preference to set deltaMode value of DOM WheelEvent

Categories

(Core :: DOM: Events, defect, P3)

17 Branch
x86
Linux
defect

Tracking

()

UNCONFIRMED

People

(Reporter: lida.tang, Unassigned)

References

Details

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:17.0) Gecko/20100101 Firefox/17.0
Build ID: 20121128204232

Steps to reproduce:

As documented in 
https://wiki.mozilla.org/Gecko:Mouse_Wheel_Scrolling#Mozilla_17_.28Firefox_17.29_or_later
Firefox 17 no longer provide a way to scroll by pixel in response to a mouse wheel event


Actual results:

In Firefox 16 and below, setting mousewheel.withnokey.action to 4 allows per pixel scrolling in response to a mouse wheel event.

I use this under Linux to have Firefox respond to trackpad scrolling events by translating them into mouse wheel events.


Expected results:

Please provide a preference like
mousewheel.default.deltaMode which can be set to pixel, line or page to override the OS specific behavior that is currently specified.
OS: Mac OS X → Linux
Component: Untriaged → DOM: Events
Product: Firefox → Core
See Also: → 1392460
Priority: -- → P3
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