> On Apr 29, 2015, at 4:15 PM, Dimitri Glazkov <dglaz...@google.com> wrote: > > On Mon, Apr 27, 2015 at 8:48 PM, Ryosuke Niwa <rn...@apple.com> wrote: >> One thing that worries me about the `distribute` callback approach (a.k.a. >> Anne's approach) is that it bakes distribution algorithm into the platform >> without us having thoroughly studied how subclassing will be done upfront. >> >> Mozilla tried to solve this problem with XBS, and they seem to think what >> they have isn't really great. Google has spent multiple years working on >> this problem but they come around to say their solution, multiple >> generations of shadow DOM, may not be as great as they thought it would be. >> Given that, I'm quite terrified of making the same mistake in spec'ing how >> distribution works and later regretting it. > > At least the way I understand it, multiple shadow roots per element and > distributions are largely orthogonal bits of machinery that solve largely > orthogonal problems.
Sorry, I wasn't clear about my point. I'm specifically talking about re-distributions. It would be great if you or someone working on Polymer could point me to an example of a concrete use case for redistributions that come up in a nested shadow DOM. As far as I looked around, I couldn't find any use case for which selective re-distribution; i.e. the case in which an outer shadow DOM's insertion point needs to filter nodes distributed into an inner shadow DOM's insertion point. - R. Niwa
