brief history of html5
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A brief history of HTML5
http://www.flickr.com/photos/smokingpermitted/1952627233/sizes/l/in/photostream/
Monday, May 16, 2011
http://www.flickr.com/photos/smokingpermitted/1952627233/sizes/l/in/photostream/
不登长城非好汉if you havenʼt been to the great wall, you are not a gentleman
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History of HTML
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I created HTML
http://mediaarchive.cern.ch/MediaArchive/Photo/Public/1998/9806033/9806033/9806033-A4-at-144-dpi.jpg
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XML
SOAP
RDF
HTTP
XSLT
HTMLSVG
GeoLocation
W3C maintains different technologies
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http://www.flickr.com/photos/soldiersmediacenter/5576794534/sizes/l/in/photostream/
Browser War
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http://www.computerhistory.org/timeline/images/1994_netscape_large.jpg
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http://www.computerhistory.org/timeline/images/1994_netscape_large.jpg
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http://pica.nipic.com/2008-05-08/200858114947970_2.jpg
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HTML 2.0 1995HTML 3.2 1997HTML 4.0 1997HTML 4.01 1999
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Why wasn’t there HTML5 soon after?
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W3C has no intention to extend HTML4 as such. Instead, further work is focusing on a reformulation of HTML in XML.
November 1999
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...while the ancestry of XHTML2 comes from HTML4, XHTML 1.0 and XHTML 1.1. It is not intended to be backward compatible with its earlier versions
August 2002
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<img>
XHTML2
<p src="map.png"></p>
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Paper to W3C
http://www.w3.org/2004/04/webapps-cdf-ws/papers/opera.htmlMonday, May 16, 2011
http://www.w3.org/2004/04/webapps-cdf-ws/papers/opera.html
WHAT-WG
Paper to W3C
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2007 W3C and WHATWG jointly develops WebApps1.0, calls it HTML5
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Paper to W3C
http://www.w3.org/2004/04/webapps-cdf-ws/papers/opera.html
2007 W3C and WHATWG jointly develops WebApps1.0, calls it HTML5
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HTML evolution
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HTML5 == HTML4 ++
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DesignPattern
http://www.flickr.com/photos/bbaunach/495123533/sizes/o/in/photostream/
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http://www.flickr.com/photos/leejordan/2484541616/sizes/l/in/photostream/
Backward compatibilities
support what HTML4 has been doing
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Documents must be well-formed
Element and attribute names must be in lower case
For non-empty elements, end tags are required
XHTML characteristics
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Documents must be well-formed
Element and attribute names must be in lower case
For non-empty elements, end tags are required
XHTML characteristics
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well-defined error handling
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new elements, practical
http://www.flickr.com/photos/sebleedelisle/3519515347/sizes/l/in/photostream/
HTML4 / XHTML HTML5
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Text
http://devfiles.myopera.com/articles/572/idlist-url.htm
common ID＝“”values
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no plugin
http://www.flickr.com/photos/sebleedelisle/3519515347/sizes/l/in/photostream/
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openness
http://www.flickr.com/photos/sebleedelisle/3519515347/sizes/l/in/photostream/
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Avoid needless complexity
http://www.flickr.com/photos/sebleedelisle/3519515347/sizes/l/in/photostream/
HTML 4.01<meta http-equiv="Content-Type"content="text/html; charset=utf-8">
XHTML 1.0<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
HTML5 <!DOCTYPE html>
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Avoid needless complexity
http://www.flickr.com/photos/sebleedelisle/3519515347/sizes/l/in/photostream/
<link rel="stylesheet" type="text/css"href="file.css">
<script type="text/javascript"></script>
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source: http://zibin.tehais.com/?p=1641
http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2007-February/009702.html
The VideoStory
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source: http://zibin.tehais.com/?p=1641
Video
http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2007-February/009702.html
Opera proposed video tag in WHAT WG mailing list in 2007
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source: http://zibin.tehais.com/?p=1641
http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2007-February/009702.html
Code <video src=”video.ogv” controls autoplayposter=”poster.jpg” width=”320”height=”240”>fallback</video>
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no love for flash？
Apple abandon support for flash in 2010
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Adobe？
Adobe CTO goes for WebM support and shows HTML extension pack
http://ntt.cc/wp-content/uploads/2010/05/AdobeCTOKevinLynchDemosHTML5ToolsAtGoogleIO.jpg
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source: http://zibin.tehais.com/?p=1641
format
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source: http://zibin.tehais.com/?p=1641
WebM H.264
format
CODEC
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<video src="movie.mp4"><!-- fallback content --></video>
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<object data="movie.swf"><!-- fallback content --></object>
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<video><source src="movie.mp4"><source src="movie.ogv"><object data="movie.swf"><a href="movie.mp4">download</a></object></video>
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2014?HTML5
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http://nadita.com/murakami/epub-css/
HTML5 timeline
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Challenges toStandards
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http://farm4.static.flickr.com/3640/3315062242_c21a4fd24c.jpg
Die IE6!!
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http://farm4.static.flickr.com/3640/3315062242_c21a4fd24c.jpg
Die IE7!!
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Politics of standards
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Software, like all technologies, is inherently political.Code inevitably reflects the choices, biases and desiresof its creators.
—Jamais Cascio
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tool or trade
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branding
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中国
Where in the world is Standards?
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slideshare.net/zibin
twitter: zibin
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