Proposal. mediaObject element.

["Dave Pawson" <dave.pawson@gmail.com>]

Attached, initial proposal for a syntax for mediaObject.
Also inline


Issues:

I do not know the mime-types well enough to be explicit for audio, video etc
so I have used a general reference to the rfc.
I'm not sure if my naming conventions match those in use in office,
but I have no issue with the syntax changes there.

Comments will be appreciated.


<?xml version="1.0" encoding="iso-8859-1"?>
<grammar xmlns="http://relaxng.org/ns/structure/1.0";
datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes";
xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0"
xmlns:style="urn:oasis:names:tc:opendocument:xmlns:style:1.0"
xmlns:text="urn:oasis:names:tc:opendocument:xmlns:text:1.0"
xmlns:draw="urn:oasis:names:tc:opendocument:xmlns:drawing:1.0"
xmlns:xlink="http://www.w3.org/1999/xlink";
xmlns:dc="http://purl.org/dc/elements/1.1/";
xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0"
xmlns:number="urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0"
xmlns:svg="urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0"
xmlns:chart="urn:oasis:names:tc:opendocument:xmlns:chart:1.0"
xmlns:dr3d="urn:oasis:names:tc:opendocument:xmlns:dr3d:1.0"
xmlns:math="http://www.w3.org/1998/Math/MathML";

xmlns:html="http://www.w3.org/1999/xhtml";
xmlns:med="urn:oasis:names:tc:opendocument:xmlns:media:1.0"
>
  <!-- Root for any media object-->
  <start>
    <ref name="Mediaobject"/>
  </start>

<define name="med-mediaobject">
  <element name="med:mediaObject">
    <oneOrMore>
      <ref name="med-imageobject"/>
      <ref name="med-textobject"/>
      <ref name="med-audioobject"/>
      <ref name="med-videoobject"/>
    </oneOrMore>
  </element>
</define>


<!-- Basic image.  -->
<define name="med-imageobject">
  <element name="med:imageObject">
    <ref name="draw-frame"/>
  </element>
</define>

<!-- Basic text alternative form.
Reduced version of text-content.
Is text-box needed ? -->
<define name="med-textobject">
  <element name="med:textObject">
    <ref name="text-content-reduced"/>
  </element>
</define>


<!-- General text descriptor. Reduced general text-content -->

<define name="text-content-reduced">
  <choice>
    <ref name="text-h"/>
    <ref name="text-p"/>
    <ref name="text-list"/>
    <ref name="text-numbered-paragraph"/>
    <ref name="text-section"/>
    <ref name="change-marks"/>
  </choice>
</define>

<!-- Basic audio alternative -->
<define name="med-audioobject">
  <ref name="med-frame"/>
</define>


<!-- Basic video alternative -->
<define name="med-videoobject">
  <ref name="med-frame"/>
</define>




<!-- Modified draw-frame -->
<!-- Used for audio and video -->

<define name="med-frame">
  <element name="med:audio-frame">
    <ref name="common-draw-shape-with-text-and-styles-attlist"/>
    <ref name="common-draw-position-attlist"/>
    <ref name="common-draw-rel-size-attlist"/>
    <ref name="presentation-shape-attlist"/>
    <ref name="draw-frame-attlist"/>
    <element name="med:src">
      <ref name="common-draw-data-attlist"/>
      <ref name="Mime-types"/>
      <!-- Enable parameterisation of objects -->
      <ref name="draw-param"/>
    </element>
    <optional>
      <ref name="office-event-listeners"/>
    </optional>
    <zeroOrMore>
      <ref name="draw-glue-point"/>
    </zeroOrMore>
    <optional>
      <ref name="draw-image-map"/>
    </optional>
    <optional>
      <ref name="svg-desc"/>
    </optional>
    <optional>
      <choice>
	<ref name="draw-contour-polygon"/>
	<ref name="draw-contour-path"/>
      </choice>
    </optional>
  </element>
</define>



<div>
<html:h3>Mime types</html:h3>
<html:p>All media-type attribute values must conform to RFC 2046. In
addition, the media-type attribute must have the value of the
IANA-registered MIME media type for that type of file, if one exists
(see RFC 2048 for information on the registration process for MIME
media types). If no MIME media type has been registered for the file
type, then the MIME media type recommended in the applicable standard
for that file type must be used. If there is no standard MIME media
type for the file, then an appropriate "x-" MIME media type must be
used, following the rules of RFC 2046. In the case of WAV files, this
standard mandates the use of the media type value
"audio/x-wav".</html:p>

<define name="Mime-types">
  <attribute name="mime-type">
    <data type="String"/>
  </attribute>
</define>
</div>



</grammar>

regards
--
Dave Pawson
XSLT XSL-FO FAQ.
http://www.dpawson.co.uk

mediaObject.rng