web standards @ opera talk oslo
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Web Standards
Opera 2010
by Zi Bin Cheah
Canvas, SVG, GeoLocation, Widgets
Monday, April 26, 2010
OpenWeb stack
SVG Vector Graphics
PNG/JPG/GIF Raster Graphics
[OGG/ VMS/Dirac]? Audio & VideoSMIL
Sycronise-ation
Med
ia
DOM Document API
ECMA/JavaScriptBe
havi
our
CSS Style sheets
Pres
enta
tion
XML
HTML 5/XHTML Markup
RDFa Semantics
ARIA AccessibilitySt
ruct
ure
<canvas> Drawing API
Widgets
GeoLoc
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SVG
Opera 2010
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<svg></svg> XML-based file format for describing two-dimensional vector graphics, both static and dynamic (i.e.
interactive or animated)
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W3C StandardsSearch engine friendlyMobile friendlyresource friendly
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Opera 10
Safari 4
Firefox 3.5
IE 8
0 25 50 75 100
60.40
81.93
93.89
SVG 1.1 support (%)
Source: http://www.codedread.com/svg-support.php
Industry leading SVG support
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Example !
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Canvas
Opera 2010
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<canvas></canvas>The canvas element is part of HTML5 and allows for dynamic, scriptable rendering of 2D shapes and
bitmap images.
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canvas has standard API methods for drawingctx = canvas.getContext("2d");ctx.fillRect(x, y, width, height);ctx.beginPath();ctx.moveTo(x, y);ctx.lineTo(x, y);ctx.bezierCurveTo(x1, y1, x2, y2, c1, c2);
and loads of other exciting functions – if you like maths and stuff
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Example Time!
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Widgets
Opera 2010
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W3C StandardsBrowser IndependentRuns on phone, TV, desktop
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More Example !
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Geolocation
Opera 2010
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A set of API to retrieve location
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More Example !
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www.opera.com/developer zibin@opera.comtwitter: zibin
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Creative Commons license image
Phone booth http://www.flickr.com/photos/rickharris/261846074/Speedometer: http://www.flickr.com/photos/adc/391594014/Danish sockets: http://www.flickr.com/photos/xoxoryan/3767746478/ People Globe http://www.flickr.com/photos/linhngan/2645589939/Norwegian mountains Baby face http://www.flickr.com/photos/hypertypos/Baby face 2 http://www.flickr.com/photos/dq090702/World map http://www.flickr.com/photos/kahtava/Rojak http://www.flickr.com/photos/stuart_spivack/
Other Slides/images
HTML5 scientist by Bruce LawsonClosed and Open platform by David StoreyACID3 test snapshot by David StoreyOpera Unite globe by Oleg Melnychuk
Slides design and contents by Zibin Cheah
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Demo links
Operating System Chrome using SVG, CSShttp://people.opera.com/dstorey/user-interfacesvgcss.html
Canvas shooting game, and flower gamehttp://www.benjoffe.com/code/demos/canvascape/http://htmlfive.appspot.com/static/gifter.html
Geolocationhttp://experimenting.in/other/demo_geo_twitter_mashup.htmGeolocation Opera Buildhttp://my.opera.com/core/blog/geolocation-enabled-build
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