[Webkit-unassigned] [Bug 114878] New: ASSERT(!isUndefined()) in animation on max-height

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=114878

           Summary: ASSERT(!isUndefined()) in animation on max-height
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: allan.jensen at digia.com


Assertion observed in Length::isZero() on is !isUndefined().

It appears the problem is an animation on max-height going from undefined to a defined value.

#5  0x00007fb86fc5b012 in WebCore::Length::isZero (this=0x7fff370b83f0) at /src/qtwebkit-23/Source/WebCore/platform/Length.h:195
#6  0x00007fb86fc5b0f2 in WebCore::Length::blend (this=0x7fff370b83e0, from=..., progress=0) at /src/qtwebkit-23/Source/WebCore/platform/Length.h:235
#7  0x00007fb86fc5d774 in WebCore::blendFunc (from=..., to=..., progress=0) at /src/qtwebkit-23/Source/WebCore/page/animation/CSSPropertyAnimation.cpp:83
#8  0x00007fb86fc70c87 in WebCore::PropertyWrapper<WebCore::Length>::blend (this=0x440c550, anim=0x4c3c440, dst=0x4c3c6d0, a=0x2e8f2c0, b=0x2f28a80, progress=0) at /src/qtwebkit-23/Source/WebCore/page/animation/CSSPropertyAnimation.cpp:379
#9  0x00007fb86fc67e95 in WebCore::CSSPropertyAnimation::blendProperties (anim=0x4c3c440, prop=WebCore::CSSPropertyMaxHeight, dst=0x4c3c6d0, a=0x2e8f2c0, b=0x2f28a80, progress=0) at /src/qtwebkit-23/Source/WebCore/page/animation/CSSPropertyAnimation.cpp:1265
#10 0x00007fb86fc72b29 in WebCore::ImplicitAnimation::animate (this=0x4c3c440, targetStyle=0x2f28a80, animatedStyle=...) at /src/qtwebkit-23/Source/WebCore/page/animation/ImplicitAnimation.cpp:81

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