926386 - Momentum scroll carries over after page changes

Status: NEW

(Core :: Widget, defect)

Description

[Armin Ronacher]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:27.0) Gecko/20100101 Firefox/27.0 (Beta/Release)
Build ID: 20131009055629

Steps to reproduce:

I used the momentum based scrolling on OS X on my touchpad on a page to scroll to the top on a page.

As I hit the top, I pressed `backspace` to to back to the previous page which was left somewhere on the half page.


Actual results:

The page I navigated back to, started scrolling at the top.


Expected results:

The page I navigated back to, should not have scrolled at all as the scroll motion was intended for the other page.

Either hitting top or going back should have stopped the momentum based scroll motion. Instead right now it just eventually approaches zero.

Comment 1

[Armin Ronacher]

Once more thing that should be added: the momentum is also not stopped when the space key is pressed which leaves a weird user experience.

Comment 2

[Suzanne Smedberg]

This same behavior happens in Safari using the CMND+[ back command, i.e. scrolling continues on previous page.  Possibly a behavior of Mac OS, not Firefox?  Does is happen in other Mac applications?

Comment 3

[Liz Henry (:lizzard) (relman/hg->git project)]

I can duplicate this in Safari and in Firefox but not in another Mac application, Preview.

Comment 4

[Jesse Ruderman]

See also bug 605751 (for switching tabs)

Comment 5

[BugBot [:suhaib / :marco/ :calixte]]

Clear a needinfo that is pending on an inactive user.

Inactive users most likely will not respond; if the missing information is essential and cannot be collected another way, the bug maybe should be closed as INCOMPLETE.

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