[Webkit-unassigned] [Bug 80808] absolutely-positioned element does not update width when container width changes

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=80808


SravanKumar S(:sravan) <ssandela at innominds.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
         AssignedTo|webkit-unassigned at lists.web |ssandela at innominds.com
                   |kit.org                     |
                 CC|                            |mrahaman at innominds.com
     Ever Confirmed|0                           |1




--- Comment #3 from SravanKumar S(:sravan) <ssandela at innominds.com>  2012-05-17 21:10:47 PST ---
I debugged this, and i found that layout for span element(with absolute positioning and top attribute) does'not happen because of following statements in void RenderBlock::layoutPositionedObjects(bool relayoutChildren)

if (relayoutChildren || (r->style()->hasStaticBlockPosition(isHorizontalWritingMode()) && r->parent() != this))
            r->setChildNeedsLayout(true, MarkOnlyThis);

1. In case of css "top: 0;" attribute being mentioned, the hasStaticBlockPosition function returns false as top(and/or bottom) is not Auto type, but rather fixed.

2. When "top: 0;"(and/or bottom) is not mentioned, it becomes auto and hence setChildNeedsLayout gets called, hence there is no issue.

Need to figure out why hasStaticBlockPosition is imposing topandBottom to be auto.

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