[Webkit-unassigned] [Bug 17004] New: Acid3: Assertion failure in VisiblePosition::previous when clicking on results

[bugzilla-daemon at webkit.org]

http://bugs.webkit.org/show_bug.cgi?id=17004

           Summary: Acid3: Assertion failure in VisiblePosition::previous
                    when clicking on results
           Product: WebKit
           Version: 525+ (Nightly build)
          Platform: Macintosh
               URL: http://hixie.ch/tests/evil/acid/003/NOT_READY_PLEASE_DO_
                    NOT_USE.html
        OS/Version: Mac OS X 10.4
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: HTML Editing
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: ap at webkit.org
                CC: justin.garcia at apple.com


Steps to reproduce:
1. Open http://hixie.ch/tests/evil/acid/003/NOT_READY_PLEASE_DO_NOT_USE.html
2. As it finishes, click on the result numbers (e.g. 67/100).

An assertion fails:
(/Users/ap/Safari/OpenSource/WebCore/editing/VisiblePosition.cpp:85
WebCore::VisiblePosition WebCore::VisiblePosition::previous(bool) const)

Thread 0 Crashed:
0   com.apple.WebCore                   0x01f9439d
WebCore::VisiblePosition::previous(bool) const + 169 (VisiblePosition.cpp:85)
1   com.apple.WebCore                   0x02005e90
WebCore::positionAvoidingFirstPositionInTable(WebCore::VisiblePosition const&)
+ 38 (visible_units.cpp:271)
2   com.apple.WebCore                   0x02006088
WebCore::startPositionForLine(WebCore::VisiblePosition const&) + 426
(visible_units.cpp:321)
3   com.apple.WebCore                   0x020060aa
WebCore::startOfLine(WebCore::VisiblePosition const&) + 18
(visible_units.cpp:328)
4   com.apple.WebCore                   0x02006304
WebCore::inSameLine(WebCore::VisiblePosition const&, WebCore::VisiblePosition
const&) + 50 (visible_units.cpp:415)
5   com.apple.WebCore                   0x01f93de7
WebCore::VisiblePosition::init(WebCore::Position const&, WebCore::EAffinity) +
149 (VisiblePosition.cpp:61)
6   com.apple.WebCore                   0x01f93ea5
WebCore::VisiblePosition::VisiblePosition(WebCore::Node*, int,
WebCore::EAffinity) + 133 (VisiblePosition.cpp:51)
7   com.apple.WebCore                   0x01f93edc
WebCore::VisiblePosition::VisiblePosition(WebCore::Node*, int,
WebCore::EAffinity) + 38 (VisiblePosition.cpp:52)
8   com.apple.WebCore                   0x01e58599
WebCore::RenderText::positionForCoordinates(int, int) + 885
(RenderText.cpp:296)
9   com.apple.WebCore                   0x01b8309f
WebCore::RenderObject::positionForPoint(WebCore::IntPoint const&) + 77
(RenderObject.h:523)
10  com.apple.WebCore                   0x01b7dc2d
WebCore::EventHandler::handleMousePressEventSingleClick(WebCore::MouseEventWithHitTestResults
const&) + 443 (EventHandler.cpp:260)
11  com.apple.WebCore                   0x01b7e4b6
WebCore::EventHandler::handleMousePressEvent(WebCore::MouseEventWithHitTestResults
const&) + 680 (EventHandler.cpp:344)
12  com.apple.WebCore                   0x01b82dd7
WebCore::EventHandler::handleMousePressEvent(WebCore::PlatformMouseEvent
const&) + 1717 (EventHandler.cpp:905)
13  com.apple.WebCore                   0x01b870e8
WebCore::EventHandler::mouseDown(NSEvent*) + 554 (EventHandlerMac.mm:480)
14  com.apple.WebKit                    0x001d1b5d -[WebHTMLView mouseDown:] +
499 (WebHTMLView.mm:2979)


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