[Webkit-unassigned] [Bug 52988] New: REGRESSION (r75555): Safari RSS sidebar jiggles when scrolling

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=52988

           Summary: REGRESSION (r75555): Safari RSS sidebar jiggles when
                    scrolling
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: InRadar
          Severity: Major
          Priority: P1
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: mitz at webkit.org
                CC: darin at apple.com, fishd at chromium.org, aestes at apple.com,
                    mihaip at chromium.org


<rdar://problem/8905599>

* STEPS TO REPRODUCE
1. Navigate to <feed://images.apple.com/main/rss/hotnews/hotnews.rss>
2. Drag the vertical scroller down

* RESULTS
The sidebar jiggles vertically as the content scrolls.

Caused by r75555 <http://trac.webkit.org/changeset/75555>, which made scroll events asynchronous. WebKit now lets the sidebar draw after scrolling and before the scroll event handler gets a chance to reposition it.

See also bug 52790.

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