[Bug 22462] New: [Shadow]: Consider adding an applyAuthorHostStyles flag

https://www.w3.org/Bugs/Public/show_bug.cgi?id=22462

            Bug ID: 22462
           Summary: [Shadow]: Consider adding an applyAuthorHostStyles
                    flag
    Classification: Unclassified
           Product: WebAppsWG
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Component Model
          Assignee: dglazkov@chromium.org
          Reporter: sorvell@chromium.org
        QA Contact: public-webapps-bugzilla@w3.org
            Blocks: 14978

The ::part() api allows a convenient way to target parts of a shadowRoot from a
scope in which the host element is targetable. However, the host is only
targetable in the styling scope in which it exists. An author may want to make
its parts style-able from any scope. e.g.

  #host::part(header) { ... }

The applyAuthorStyles flag exists for a similar use case: to allow styling
shadowRoot contents from any enclosing scope. However, it is undesirable in the
case that an author wants only to expose specifically defined parts to the
enclosing scopes.

For this case, we should introduce a new flag: applyAuthorHostStyles. This
would make the shadowRoot host element and any ::part targetable from any
enclosing scope. Selectors that can match the host element when
applyAuthorHostStyles is used would be required to match entirely within the
scope of the host element.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.

Received on Tuesday, 25 June 2013 18:05:03 UTC