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RE: ISSUE-59: inconsistencies regarding animatability of style properties [DFXP 1.0]

From: Sean Hayes <Sean.Hayes@microsoft.com>
Date: Sun, 19 Apr 2009 15:36:24 +0100
To: Timed Text Working Group WG <public-tt@w3.org>
Message-ID: <AB3FC8E280628440B366A29DABB6B6E8070E507C90@EA-EXMSG-C334.europe.corp.microsoft.com>
It occurs to me also that by the same argument, there is no reason that attributes like @region and @style could not also be animatable, (it which might even give motivation for the inherit value).

e.g.:

<p begin="1s" dur="3s" region="ordinaryCaption">
   <set begin="2s" dur="1s" region="offsetCaptionLeft"/>Phrase being interrupted</p>
<p begin="2s" dur="2s" region="offsetCaptionRight">
   <set begin="1s" region="ordinaryCaption "/>Interrupting phrase</p>

In such a case, it might be useful to be able to override a local style to the inherited value, but where one might not know what the currently applicable inherit was.

Just a thought.

Sean Hayes
Media Accessibility Strategist
Accessibility Business Unit
Microsoft


-----Original Message-----
From: public-tt-request@w3.org [mailto:public-tt-request@w3.org] On Behalf Of Timed Text Working Group Issue Tracker
Sent: 19 April 2009 1:42 PM
To: public-tt@w3.org
Subject: ISSUE-59: inconsistencies regarding animatability of style properties [DFXP 1.0]


ISSUE-59: inconsistencies regarding animatability of style properties [DFXP 1.0]

http://www.w3.org/AudioVideo/TT/tracker/issues/59


Raised by: Glenn Adams
On product: DFXP 1.0

properties

tts:direction
tts:displayAlign
tts:dynamicFlow
tts:extent
tts:origin
tts:overflow
tts:unicodeBidi
tts:writingMode

are not defined as animatable, and no rationale for lack of animatability is described;

to simplify animation model, i propose to make all style properties animatable




Received on Sunday, 19 April 2009 14:35:12 GMT

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