[Webkit-unassigned] [Bug 18329] New: REGRESSION: Assertion failure in -[WebViewFactory endOfTextMarkerRange:] when invoking the Dictionary pop-up

[bugzilla-daemon at webkit.org]

http://bugs.webkit.org/show_bug.cgi?id=18329

           Summary: REGRESSION: Assertion failure in -[WebViewFactory
                    endOfTextMarkerRange:] when invoking the Dictionary pop-
                    up
           Product: WebKit
           Version: 526+ (Nightly build)
          Platform: Macintosh
        OS/Version: Mac OS X 10.5
            Status: NEW
          Keywords: Regression
          Severity: Normal
          Priority: P2
         Component: Accessibility
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: mitz at webkit.org
                CC: bdakin at apple.com, alice.liu at apple.com


Steps to reproduce:
1. On this page, move the mouse cursor over a word.
2. Press Command-Control-D (or whatever the keyboard shortcut for Look up in
Dictionary is; see System Preferences > Keyboard & Mouse).

Result:
ASSERTION FAILED: range != nil
(WebKit/mac/WebCoreSupport/WebViewFactory.mm:405 WebCoreTextMarker*
-[WebViewFactory endOfTextMarkerRange:](WebViewFactory*, objc_selector*,
WebCoreTextMarkerRange*))

Backtrace:
#0  0x003b5103 in -[WebViewFactory endOfTextMarkerRange:] (self=0x3eb58a0,
_cmd=0x26d7548, range=0x0) at WebKit/mac/WebCoreSupport/WebViewFactory.mm:405
#1  0x0236310b in visiblePositionForEndOfTextMarkerRange (textMarkerRange=0x0)
at WebCore/page/mac/AccessibilityObjectWrapper.mm:160
#2  0x02363136 in -[AccessibilityObjectWrapper
visiblePositionRangeForTextMarkerRange:] (self=0x17aa8c70, _cmd=0x26d77c0,
textMarkerRange=0x0) at WebCore/page/mac/AccessibilityObjectWrapper.mm:575
#3  0x02366323 in -[AccessibilityObjectWrapper
accessibilityAttributeValue:forParameter:] (self=0x17aa8c70, _cmd=0x94df6efc,
attribute=0x19d0617c, parameter=0x17aa0220) at
WebCore/page/mac/AccessibilityObjectWrapper.mm:1214
#4  0x19d0391b in DSAXGetTextOrigin ()
(More stack frames follow...)


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