Bug 112229 - REGRESSION (Subpixel Layout): "Popover" arrow shifts up at end of fade transition at hulu.com
Summary: REGRESSION (Subpixel Layout): "Popover" arrow shifts up at end of fade transi...
Status: RESOLVED DUPLICATE of bug 115304
Alias: None
Product: WebKit
Classification: Unclassified
Component: Layout and Rendering (show other bugs)
Version: 528+ (Nightly build)
Hardware: Mac Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2013-03-13 00:01 PDT by Jon Lee
Modified: 2013-12-09 11:06 PST (History)
8 users (show)

See Also:

Attachments
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Jon Lee 2013-03-13 00:01:48 PDT 
1. Navigate to <http://www.hulu.com>
2. Hover over one of the items under “TRENDING NOW” to show a white “popover” with details

The popover fades in, then when it reaches maximum opacity, the triangular part pointing at the hovered item shifts up by a pixel or two.

It seems to depend on a calculation that divides by two. Depending on the thumbnail you hover (for example, further below in the page), you get either top: xxx.5 or top: xxx.0 (integer).

<rdar://problem/13345303>
Comment 1 Alexey Proskuryakov 2013-03-13 08:39:38 PDT 
From <http://trac.webkit.org/changeset/133351>.
Comment 2 Simon Fraser (smfr) 2013-03-26 14:07:30 PDT 
Another subpixel jiggle
Comment 3 zalan 2013-12-09 11:06:00 PST 

*** This bug has been marked as a duplicate of bug 115304 ***