[Webkit-unassigned] [Bug 105480] Implement element type selectors for the WebVTT ::cue pseudo class

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=105480





--- Comment #11 from Antti Koivisto <koivisto at iki.fi>  2013-01-08 05:15:02 PST ---
It seems to me that what we want is:

- Make WebVTTParser generate a tree of Elements corresponding to "WebVTT Node Objects" with tag names and attributes set for selector matching (http://dev.w3.org/html5/webvtt/#the-'::cue'-pseudo-element).
- getCueAsHTML() should not be used internally. It should be invoked on API access only and traverse the internal tree, constructing a new tree with mappings described in http://dev.w3.org/html5/webvtt/#webvtt-cue-text-dom-construction-rules
- I see no obvious need to make a copy of the node tree for rendering. It looks like we could just use it as-is, simplifying things (eliminate m_allDocumentNodes).
- Instead of marking the tree with bits, :future and :past should be implemented in SelectorChecker by grabbing the media elements time stamp and walking to the nearest timestamp node.

What do you think?

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