[Webkit-unassigned] [Bug 49035] SVG <path> inside a <defs> is still marked as needing layout at the end of FrameView::layout
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Fri Nov 5 01:00:42 PDT 2010
https://bugs.webkit.org/show_bug.cgi?id=49035
--- Comment #4 from Nikolas Zimmermann <zimmermann at kde.org> 2010-11-05 01:00:42 PST ---
(In reply to comment #0)
> The assertions in https://bugs.webkit.org/show_bug.cgi?id=49019 trigger on several SVG tests. Here's a reduction of one of the issues that triggers on svg/custom/recursive-mask.svg:
>
> <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
> <defs>
> <rect id="rect" x="0" y="100" width="50" height="50" fill="white" mask="url(#mask4)"/>
> <mask id="mask4">
> <use xlink:href="#rect"/>
> </mask>
> </defs>
> </svg>
>
> At the end of FrameView::layout() the render tree looks like this:
>
>
> RenderView 0x3dbc2d8 #document 0x3e67420
> RenderSVGRoot 0x3eba5a8 svg 0x3eb85c0
> RenderSVGHiddenContainer 0x3ebc6b8 defs 0x3ebc460
> * RenderSVGPath 0x3ebdde8 rect 0x3ebca40
> RenderSVGResourceMasker 0x3ec0168 mask 0x3ebfa40
> RenderSVGContainer 0x3daf418 use 0x3ebf260
> RenderSVGContainer 0x3db05b8 g 0x3daf4e0
> RenderSVGPath 0x3db0738 rect 0x3dafd90
>
>
> and the RenderSVGPath associated with the <rect> is still marked as m_needsLayout.
The one marked with the star * ? Or the one cloned <rect> within the <use> subtree?
I guess that's RenderSVGHiddenContainer::layout's fault. More precisely the SVGRenderSupport::layoutChildren optimizations, we could end up with an inconsistent tree there...
Can you investigate a bit further, where it fails to go in the subtree?
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