[Bug 11327] New: media.canPlayType() should be generalized


           Summary: media.canPlayType() should be generalized
           Product: HTML WG
           Version: unspecified
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: HTML5 spec (editor: Ian Hickson)
        AssignedTo: ian@hixie.ch
        ReportedBy: glenn@skynav.com
         QAContact: public-html-bugzilla@w3.org
                CC: mike@w3.org, public-html-wg-issue-tracking@w3.org,

The media.canPlayType() should be generalized to support querying for support
for image (and perhaps other content type decoding/presentation) support as
well as A/V media types. Furthermore, it seems odd to define on HTMLMediaType,
when it is more specifically a property of the user agent. I suggest that this
method be removed, and a new method canSupportType(String mimeMediaType) be
defined on the Window object instead; alternatively, that an
HTMLUserAgentCapabilities interface be defined and implemented by the same
object that implements the Window interface, in which case canSupportType()
could be defined on this new HTMLUserAgentCapabilities interface.

It would also be useful to define a canSupportScheme(String uriScheme) method
on this same HTMLUserAgentCapabilities interface, so that script content can
learn what URI schemes (and protocols) are supported by the UA.


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Received on Tuesday, 16 November 2010 18:37:33 UTC