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HTML5 and Designing a Rich Internet Experience
4/15/2017 HTML5 and Designing a Rich Internet Experience Garth Colasurdo HSLIC Web and Applications Group
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In This Presentation HTML5 ≈ HTML 5 + CSS 3 + JavaScript
Rich Internet Applications (RIA) HTML5 x 5 Caution and Progress Example and Reference Sites
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4/15/2017 O’Reilly Media Web 2.0 in 2004
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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
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A Rough History of Web Standards
91-92 93-94 95-96 97-98 99-00 01-02 03-04 05-06 07-08 09-10 11-12 13-14 HTML 1 HTML 2 HTML 4 XHTML 1 HTML 5 CSS 1 CSS 2 T-less D Web 2.0 CSS3 JS ECMA, DOM DOM 2 Ajax DOM, APIs HTML 5 CSS 2004 WHATWG started 2008 W3C Working Draft 2012 (2010) W3C Candidate Rec 2022 W3C Rec 1996 – CSS 1 W3C Rec 1998 – CSS 2 1999 – CSS 3 Proposed 2005 – CSS 2.1 W3C Candidate Rec 2001 – CSS 3 W3C Working Draft
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Rich Internet Applications (RIA)
4/15/2017 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 Coined in 2002 (Macromedia)
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RIA Examples
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5 HTML Enhancements HTML Forms CSS Offline applications Local storage
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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)
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Image, Video, Quote, Table, etc…
HTML Header Figure Navigation Image, Video, Quote, Table, etc… Aside Section Article Footer Article Footer Article Footer Legend Footer
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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); }
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Form Enhancements Placeholder text
Specific text input: , URL, number, search Slider Date picker User Agent validation
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CSS Effects Rounded corners Gradients Box and text shadows Fonts
4/15/2017 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 Last, first, odd, even, previous, first n, last n
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CSS Effect Example Amazing CSS Effects http://css3generator.com/
.amazing { border: 1px solid blue; color: red; background-color: gold; -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); }
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CSS Timelines
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Programmer Tools Offline Applications Storage Communication
Web Workers Web Sockets Desktop experience Drag and Drop Notifications Geolocation
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Offline Applications <html mainfest=“ … </html> 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 someapp.manifest
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Local Storage Beyond cookies- local storage Session 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
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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) { … });
![Local Storage Web storage window.localStorage[‘value’] = ‘Save this!’;](http://slideplayer.com./slide/4334373/14/images/19/Local+Storage+Web+storage+window.localStorage%5B%E2%80%98value%E2%80%99%5D+%3D+%E2%80%98Save+this%21%E2%80%99%3B.jpg "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) { … });")
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User Agent Storage
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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
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Progress Multiple support levels Astounding user agent development
4/15/2017 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 Java script- faster, Engines- faster, Device awareness in the general pop., Blue E != Internet, SproutCore, jQTouch, Sencha
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Advocacy Sites Total clearing house of HTML5 (start with the presentation) HTML5 Watch is a list of interesting RIA advances CSS3 Blog
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Demos and Experiments Chrome Experiments Apple HTML5 Showcase Canvas Demos RIA Demos with browser support listed Our Solar System Pure CSS3 Animated AT-AT Walker from Star Wars
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Developer Reference Sites
W3C W3Schools HTML 5 Reference Dive Into HTML 5 (prerelease site for an O’Reilly book) WebKit (Safari and Chromium) Mozilla IE 8 & 9
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