Bug 48873

Summary:

Overlapped nested iframes show smearing when scrolled

Product:

WebKit

Reporter:

Simon Fraser (smfr) <simon.fraser>

Component:

Layout and Rendering

Assignee:

Simon Fraser (smfr) <simon.fraser>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

simon.fraser

Priority:

Keywords:

InRadar

Version:

528+ (Nightly build)

Hardware:

All

OS:

OS X 10.5

See Also:

https://bugs.webkit.org/show_bug.cgi?id=265326

Attachments:

Description	Flags
Patch	simon.fraser: review+

Description Simon Fraser (smfr) 2010-11-02 14:44:00 PDT

We have logic that detects when an iframe is overlapped, and then calls -setCopiesOnScroll:NO on the iframe's content view so that AppKit does a full repaint of the view when it gets scrolled.

However, this logic only works for a single level of iframe. Nested iframes are not told that they are overlapped.

Comment 1 Simon Fraser (smfr) 2010-11-02 14:44:19 PDT

<rdar://problem/8621567>

Comment 2 Simon Fraser (smfr) 2010-11-02 14:47:50 PDT

Created attachment 72740 [details]
Patch

Comment 3 Simon Fraser (smfr) 2010-11-02 17:54:07 PDT

Comment on attachment 72740 [details]
Patch

r=mitz in person with comments.

Comment 4 Simon Fraser (smfr) 2010-11-02 17:59:29 PDT

http://trac.webkit.org/changeset/71194