Just a stab in the dark here, and without knowledge about recent changes that could have caused your code to break (so this could be wildly off). The difference between the 2 versions AFAICT is whether m_isAnonymous is set or not, which leads me to the question: have you properly overridden createsAnonymousWrapper() in the parent?
Cheers, Roland On Tue, Feb 9, 2010 at 6:28 AM, Alex Milowski <[email protected]> wrote: > I've been struggling with odd issues with anonymous blocks that I don't > quite > understand. For example, to build a fraction in MathML I wrap the > numerator > and denominator in an anonymous block: > > RenderBlock* row = new (renderArena()) RenderBlock(document()); > > I then set border, padding, and text-align style properties on the style > for > that anonymous block. These settings seem to have stopped working > in the latest round of work. > > If I change the construction of the row wrapper to: > > RenderBlock* row = new (renderArena()) RenderBlock(node()); > > which is backed by the 'mfrac' element, all the border/etc. style > properties > work. > > When I trace through with the debugger, the border properties seem to > disappear from the style object when the node is the document node > and the block is anonymous. > > Any ideas on what is happening? > > I see that there is little code that uses an anonymous blocks directly > as I do. Is there are a preferred way to do this? > > My intended design for fractions was: > > 1. The mfrac is a inline-block with block flows for its children > > 2. The numerator and denominator are blocks that stack vertically. > > 3. The denominator has a border property for the fraction line > separator. > > 4. These wrapper blocks for the numerator and denominator can > have arbitrarily complicated flows of their own. > > Currently, if I use the second construct above and use node() as > the backing node for the block wrappers for the numerator and > denominator, it almost works. There seem to be situations where > the border is drawn short of the overall width--which is a another > problem I'm struggling with but may be unrelated to this issue. > > -- > --Alex Milowski > "The excellence of grammar as a guide is proportional to the paucity of the > inflexions, i.e. to the degree of analysis effected by the language > considered." > > Bertrand Russell in a footnote of Principles of Mathematics > _______________________________________________ > webkit-dev mailing list > [email protected] > http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev >
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