[Bug 27637] New: [Shadow]: Explain the CSS inheritance in terms of ComposedTree

https://www.w3.org/Bugs/Public/show_bug.cgi?id=27637

            Bug ID: 27637
           Summary: [Shadow]: Explain the CSS inheritance in terms of
                    ComposedTree
           Product: WebAppsWG
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Component Model
          Assignee: dglazkov@chromium.org
          Reporter: hayato@chromium.org
        QA Contact: public-webapps-bugzilla@w3.org
                CC: mike@w3.org, public-webapps@w3.org
            Blocks: 14978

Although css-scoping spec, 3.3.2. Inheritance [1], explains how the inheritance
works for Shadow DOM, I think that should be moved to Shadow DOM spec and
should be explained in terms of Composed Tree so that we can make it more
strict definition.

One more goal is to get rid of the following paragraph from the Shadow DOM spec
[2]:

> In rendering a document tree, or presenting it visually, the composed tree must be used instead of the document tree.

> The composed tree must be updated before the rendering occurs.


We should also mention that if a node is not in the composed tree (with
document as root), the node doesn't have a CSS layout boxes explicitly.
The exact condition of that should be worth considering, though.


[1]: http://dev.w3.org/csswg/css-scoping/#inheritance
[2]: http://w3c.github.io/webcomponents/spec/shadow/#composed-trees

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Received on Wednesday, 17 December 2014 11:35:57 UTC