Bug 48873 - Overlapped nested iframes show smearing when scrolled
Summary: Overlapped nested iframes show smearing when scrolled
Alias: None
Product: WebKit
Classification: Unclassified
Component: Layout and Rendering (show other bugs)
Version: 528+ (Nightly build)
Hardware: All OS X 10.5
: P2 Normal
Assignee: Simon Fraser (smfr)
Keywords: InRadar
Depends on:
Reported: 2010-11-02 14:44 PDT by Simon Fraser (smfr)
Modified: 2010-11-02 17:59 PDT (History)
1 user (show)

See Also:

Patch (8.41 KB, patch)
2010-11-02 14:47 PDT, Simon Fraser (smfr)
simon.fraser: review+
Details | Formatted Diff | Diff

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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
Comment 2 Simon Fraser (smfr) 2010-11-02 14:47:50 PDT
Created attachment 72740 [details]
Comment 3 Simon Fraser (smfr) 2010-11-02 17:54:07 PDT
Comment on attachment 72740 [details]

r=mitz in person with comments.
Comment 4 Simon Fraser (smfr) 2010-11-02 17:59:29 PDT