Hi Dave, thanks very much for your comments and feedback, this information is great to document the whole design process of the code.
I agree with the goals you are pointing out, actually I think the change to use flexbox was a good option to try at that point. But currently considering the result of the design in the code we can see that the devil is in the detail. Trying to use box spacing to create complex anonymous render trees that produce the complex layout result of some mathml formula, brings a complex code difficult to improve to get the best math render possible. That is the main reason for this change, you can see bugs such as this were developers are not even sure how the whole layout is happening: https://bugs.webkit.org/show_bug.cgi?id=137330 The problem is worse if we try to add more complex layout calculations to match best formula rendering. Also we can find flexbox changes just avoiding mathml tests because it is not clear how the anonymous nodes structure is handled for some cases. So this takes us to the current proposal, if we do not get more feedback probably we will start asking for reviews in the next weeks, and we can discuss in more detail in the bugs the pros and cons of the change. Thanks again, Alex _______________________________________________ webkit-dev mailing list firstname.lastname@example.org https://lists.webkit.org/mailman/listinfo/webkit-dev