HTML5 and Designing a Rich Internet Experience Garth Colasurdo

HTML5 and Designing a Rich Internet Experience Garth Colasurdo HSLIC Web and Applications Group [email protected]

In This Presentation HTML5 HTML 5 CSS 3 JavaScript Rich Internet Applications (RIA) HTML5 x 5 Caution and Progress Example and Reference Sites

HTML5 HTML 5 CSS 3 JavaScript HTML5 is a suite of tools for: – Markup (HTML 5) – Presentation (CSS 3) – Interaction (DOM, Ajax, APIs) Brought on by the evolving use of the web http://slides.html5rocks.com/

A Rough History of Web Standards 91-92 93-94 HTML 1 HTML 2 95-96 97-98 99-00 HTML 4 XHTML 1 CSS 1 CSS 2 JS ECMA, DOM 01-02 05-06 07-08 09-10 11-12 13-14 HTML 5 T-less D DOM 2 03-04 Web 2.0 CSS3 Ajax HTML 5 DOM, APIs CSS 2004 WHATWG started 1996 – CSS 1 W3C Rec 2008 W3C Working Draft 1998 – CSS 2 W3C Rec 2012 (2010) W3C Candidate Rec 1999 – CSS 3 Proposed 2022 W3C Rec 2005 – CSS 2.1 W3C Candidate Rec 2001 – CSS 3 W3C Working Draft

Rich Internet Applications (RIA) Space between the internet and the desktop Apps that look good and behave well Adobe Air/Flash, Java, Silverlight, Gears Availability – Anywhere a web browser is available – As a desktop widget or application – Part of a mobile application store

RIA Examples

5 HTML Enhancements HTML Forms CSS Offline applications Local storage

HTML Extended Document Flow: div, section, article, nav, aside, header, footer Audio, Video and Embed Canvas: paths, gradients, image manipulation, events Microdata for semantics and enhanced search engine results (Google Rich Snippets)

HTML Header Figure Navigation Section Article Footer Article Aside Image, Video, Quote, Table, etc Footer Article Footer Legend Footer

Canvas canvas id “canvas” width “150” height “150” /canvas function draw() { var canvas document.getElementById(“canvas”); if (canvas.getContext) { var ctx canvas.getContext(“2d”); ctx.fillStyle “rgb(200,0,0)”; ctx.fillRect (10,10,55,50); ctx.fillStyle “rgb(0,0,200)”; ctx.fillRect (30,30,55,50); } }

Form Enhancements Placeholder text Specific text input: email, URL, number, search Slider Date picker User Agent validation

CSS Effects Rounded corners Gradients Box and text shadows Fonts Transparencies Multiple background images and border images Multiple columns and grid layout Box sizing Stroke and outlines Animation, movement and rotation Improved selectors

CSS Effect Example .amazing { border: 1px solid blue; color: red; background-color: gold; Amazing Amazing CSS CSS Effects Effects -webkit-border-radius: 40px; -moz-border-radius: 40px; border-radius: 40px; -webkit-box-shadow: 8px 8px 6px #474747; -moz-box-shadow: 8px 8px 6px #474747; box-shadow: 8px 8px 6px #474747; text-shadow: 8px 8px 2px #595959; filter: dropshadow(color #595959, offx 8, offy 8); } http://css3generator.com/

CSS Timelines http://mattbango.com/notebook/web-development/pure-css-timeline/

Programmer Tools Offline Applications Storage Communication – Web Workers – Web Sockets Desktop experience – Drag and Drop – Notifications Geolocation

Offline Applications html mainfest “http://m.health.unm.edu/someapp.manifest” /html someapp.manifest CACHE MANIFEST #v1.01 #Explicitly cached files CACHE: index.html Stylesheet.css Images/logo.png NETWORK: Search.cfm Login.cfm /dynamicpages FALLBACK: /dynamicpage.cfm /static.html http://www.whatwg.org/specs/web-apps/current-work/multipage/offline.html

Local Storage Beyond cookies- local storage – – – – Manipulated by JavaScript Persistent 5MB storage per “origin” Secure (no communication out of the browser) Session storage – Lasts as long as the browser is open – Each page and tab is a new session Browser based SQLite or IndexedDB

Local Storage Web storage window.localStorage[‘value’] ‘Save this!’; Session storage sessionStorage.useLater(‘fullname’, ‘Garth Colasurdo’); alert(“Hello ” sessionStorage.fullname); Database storage var database openDatabase(“Database Name”, “Database Version”); database.executeSql(“SELECT * FROM test”, function(result1) { }); http://dev.w3.org/html5/webstorage/

User Agent Storage

Cautions Browser implementation is fragmented Standards are in development – HTML Candidate Recommendation is scheduled for 2012 – CSS3 is in multiple drafts and proposals – ECMA-262 (edition 3) (or JavaScript 1.5) New markup and architecture design

Progress Multiple support levels – HTML editors – CSS editors and frameworks – JavaScript libraries and frameworks Astounding user agent development – – – – – JavaScript engines Rendering engines Device awareness Widget adoption Robust vendor competition and cooperation Continue with progressive enhancement/graceful failure methods

Advocacy Sites Total clearing house of HTML5 (start with the presentation) http://html5rocks.com HTML5 Watch is a list of interesting RIA advances http://html5watch.tumblr.com CSS3 Blog http://www.css3.info

Demos and Experiments Chrome Experiments http://www.chromeexperiments.com Apple HTML5 Showcase http://www.apple.com/html5/ Canvas Demos http://www.canvasdemos.com RIA Demos with browser support listed http://html5demos.com Our Solar System http://neography.com/experiment/circles/solarsystem/ Pure CSS3 Animated AT-AT Walker from Star Wars http://blog.optimum7.com/anthony/website-design/pure-css3-animated-at-at-w alker-from-star-wars-2.html

Developer Reference Sites W3C http://dev.w3.org/html5/html-author/ http://w3.org/TR/css3-roadmap/ W3Schools HTML 5 Reference http://www.w3schools.com/html5/ Dive Into HTML 5 (prerelease site for an O’Reilly book) http://diveintohtml5.org WebKit (Safari and Chromium) http://developer.apple.com/safari/library/navigation/ http://www.chromium/home/ Mozilla http://developer.mozilla.org/en/html/html5/ IE 8 & 9 http://msdn.microsoft.com/en-us/library/aa737439.aspx http://ie.microsoft.com/testdrive/