Bug 32180

Summary:

Video can overlap position:fixed element when scrolling

Product:

WebKit

Reporter:

Simon Fraser (smfr) <simon.fraser>

Component:

Layout and Rendering

Assignee:

Simon Fraser (smfr) <simon.fraser>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

eric.carlson, mitz

Priority:

Version:

528+ (Nightly build)

Hardware:

Mac

OS:

OS X 10.5

URL:

http://camendesign.com/code/video_for_everybody

Attachments:

Description	Flags
Patch	mitz: review+

Description Simon Fraser (smfr) 2009-12-04 16:32:58 PST

On the page in the URL, make the window short enough so that when you scroll up, the video overlaps the position:fixed bar at the bottom. Note that it's possible to get into a state where the video can overlap the position:fixed bar. Resizing the window fixes it.

The issue here is that we're not doing layout on scroll, so we're not running the overlap logic in RenderLayerCompositor::computeCompositingRequirements().

Comment 1 Simon Fraser (smfr) 2010-01-25 21:21:51 PST

Also seen on nyt.com, and in NetNewsWire themes.

Comment 2 Simon Fraser (smfr) 2010-01-27 16:48:39 PST

Created attachment 47574 [details]
Patch

Comment 3 Simon Fraser (smfr) 2010-01-28 10:07:29 PST

http://trac.webkit.org/changeset/54006