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 webkit-dev@lists.webkit.org http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev