[Webkit-unassigned] [Bug 102538] Introduce a new renderer for grid areas

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=102538





--- Comment #1 from Ojan Vafai <ojan at chromium.org>  2012-11-16 11:27:51 PST ---
I've thought about this more since we last talked about it and I think we probably don't want anonymous grid areas. Before, I was confused and thought containing block implied it would also be a positioning root. But, since you can't style the grid area, it can never be a positioning root.

I think we'll end up with something easier to manage that uses less memory and performs better if we avoid creating grid area renderers since they are only there for positioning/sizing the grid items.

The only complexity here is that we need to make sure to resolve percentage/calc values using the grid-area as the containing block. We will already need to do this calculation for the margins, width and height. So, I think the only complexity added by not having grid area renderers is that we'll also need to do so for percentage paddings.

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