[Webkit-unassigned] [Bug 61997] Cloning elements with shadow DOM does redundant element creation

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=61997





--- Comment #3 from Dominic Cooney <dominicc at chromium.org>  2011-06-03 03:42:16 PST ---
Reverting 84528 will ensure that there is no redundant element creation. However it does not ensure that cloned elements end up with valid shadow trees. (For example, <keygen> has no hook to clone its shadow.)

I think we need a general solution where elements with shadow roots get notified when they are cloned, so that they can participate in the clone. For elements like <input type="…"> where setting the type attribute will create a shadow tree anyway, it can just assert that the shadow tree was created.

For elements like keygen, it can create the clone shadow tree at that point.

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