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Issue 594074 link

Starred by 2 users

Issue metadata

Status: Fixed
Owner:
Closed: Mar 2016
Cc:
EstimatedDays: ----
NextAction: ----
OS: Linux , Windows
Pri: 1
Type: Bug-Regression



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Regression: Unable to scroll the page via mouse wheel on hovering the mouse over scrollbar.

Project Member Reported by radhakri...@techmahindra.com, Mar 11 2016

Issue description

Chrome Version       : 51.0.2674.0 (Official Build)
OS Version : Ubuntu 14.04

What steps will reproduce the problem?
(1)Launch chrome and open any page with scrollbar.
(2)Hover the mouse over scrollbar and try to scroll the page through mouse wheel


What is the expected result?
Should be able to scroll the page.

What happens instead?
The page does not scroll.

This is a regression issue broken in M-51.



 
Labels: Needs-Bisect OS-Windows
Status: Untriaged (was: Unconfirmed)
Able to reproduce the issue on windows 7 using chrome version 51.0.2674.0.

Radha@ Please provide bisect infromation 
actual.mp4
824 KB Download
expected.mp4
998 KB Download
Labels: -Needs-Bisect hasbisect
Owner: bokan@chromium.org
Status: Assigned (was: Untriaged)
Good Build: 51.0.2673.0
Bad Build : 51.0.2674.0

CHANGELOG URL:
  https://chromium.googlesource.com/chromium/src/+log/cb9d633e2f1f1f13881899fa92f356bf8cd79e02..fd7ede807eb0e64820c805e8d5d0caf7ba9c5516

Suspecting https://codereview.chromium.org/1752043002 from changelog

@bokan: Please look into the issue.


Comment 4 by bokan@chromium.org, Mar 11 2016

Yes, this was caused by that CL. I'll submit a fix shortly.

Comment 5 by bokan@chromium.org, Mar 14 2016

Labels: Hotlist-Input-Dev
Project Member

Comment 6 by bugdroid1@chromium.org, Mar 16 2016

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/2931e932cacf7c7e7ca1629971c169b5b52c18c0

commit 2931e932cacf7c7e7ca1629971c169b5b52c18c0
Author: bokan <bokan@chromium.org>
Date: Wed Mar 16 20:51:33 2016

Fix wheel scrolling over scrollbar not scrolling page.

I introduced this bug in my refactoring in r380403. The fix is to simply use the
document node as the element to scroll if the hit test doesn't return a node but
does hit a scrollbar.

BUG= 594074 

Review URL: https://codereview.chromium.org/1804063002

Cr-Commit-Position: refs/heads/master@{#381533}

[add] https://crrev.com/2931e932cacf7c7e7ca1629971c169b5b52c18c0/third_party/WebKit/LayoutTests/fast/events/wheel-in-scrollbar-expected.txt
[add] https://crrev.com/2931e932cacf7c7e7ca1629971c169b5b52c18c0/third_party/WebKit/LayoutTests/fast/events/wheel-in-scrollbar.html
[modify] https://crrev.com/2931e932cacf7c7e7ca1629971c169b5b52c18c0/third_party/WebKit/Source/core/input/EventHandler.cpp

Comment 7 by bokan@chromium.org, Mar 16 2016

Status: Fixed (was: Assigned)

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