HTML 5
Why HTML5 ?
To bring the web to maturity as a fully fledged application
platform, where media and interactivity are standardized.
New Elements / Capabilities
Off-line Storage: Google dumps it's own
'Gears' framework in favour of HTML 5.
http://www.readwriteweb.com/archives/google_dumps_gears_for_html5.php
Standards & Adoption
"...the truth is the web moves at the speed of people actually
building and using it, not the speed of recommendations
from the W3C."
- from "Microsoft Still Chasing the Competition With IE9"
www.webmonkey.com
Possible reason: SilverLight
<Shoot Self In Foot='false' />
Architectural Considerations
Development:
- accessible / easy to learn (?)
- doesn't require special software - text based
- wider skill pool since HTML is so core to web development
- cross-browser support
- will developers be able to write more code that can be used on more platforms (such as mobile ones?)
Use:
- widely available / mulit-platform, including mobile devices
- no special software / players
- relies on browser support (IE?)
Standards based
- which is good - but only as good as adoption by browser vendors
- impact on corporate users?
- impact on Government guidelines - how will this affect the NZ e-Govt standards in the next few years?
Security
- new raft of vunerabilities?
Resources
<irony definition='using a Flash based app to talk about HTML 5' />
<defence strength='mega' input='xmas, day job, family, blah blah' />
HTML 5 differences from HTML 4
http://www.w3.org/TR/html5-diff
Dedicated tags for video and audio
(no more <object> or <embed>)
A Brief History
A Preview of HTML 5
http://www.alistapart.com/articles/previewofhtml5
Off-line storage (SqlLite)
Vector Graphics: bezier and
quadratic curves, etc...
Theory: Standards based - universal
adoption and consistent results
HTML 5 Reference: A Web Developer’s Guide to HTML 5
http://dev.w3.org/html5/html-author/
Nov 1995 - HTML 2.0
Jan 1997 - HTML 3.2
Dec 1997 - HTML 4.0
Dec 1999 - HTML 4.01
Jan 2000 - XHTML 1.0...
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Jan 2009 - HTML 5 (Working Draft Only)
Practice: market grabbing rapid development
Web 2.0
API's for in-browser editing,
drag+drop and more
When can I use...
http://a.deveria.com/caniuse/#agents=All&eras=All&cats=HTML5&statuses=rec,cr,wd,ietf
(2004)
Influenced by
Older style presentation tags will be
phased out in favour of CSS
W3C (World Wide Web Consortium)
- oversea standards
Waves with Canvas (tutorial)
http://nutt.im/waves/#1
Web Workers: "...API for running scripts in
the background independently of any user
interface scripts."
- http://www.whatwg.org/specs/web-workers/current-work/
WHATWG (Web Hypertext Application
Technology Working Group)
- Experimental / incubator
- Development of HTML APIs
- Includes reps from Mozilla, Apple & Opera
Public Lab: Impressionist Inspired Demo
http://lab.publicreative.com/impressionist/
Goal
Google Chrome: HTML 5 Demos
http://htmlfive.appspot.com/
New elements to define page structure.
HTML 5
pre-HTML 5
You Know it's 2000 when...
WebKit
http://webkit.org/blog/
...You have to cross-browser test
until you're blue in the face
Mozilla
http://developer.mozilla.org/devnews/
Opera
http://my.opera.com/desktopteam/blog/
You know it's 2005 when...
...You have to cross-browser test
until you're blue in the face
...Microsoft "extends" HTML and
everyone else cries "non-standard!"
You know it's 2010 when...
...You have to cross-browser test
until you're blue in the face
...everyone embraces HTML 5 and
Microsoft cries "non-standard!"
When can I use...
http://a.deveria.com/caniuse/#agents=All&eras=All&cats=HTML5&statuses=rec,cr,wd,ietf
<suck strength='very' />