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Welcome to Internet Explorer 8

Welcome to Internet Explorer 8. Damian Edwards Senior Consultant Readify. Lachlan Hardy Design Engineer Atlassian. Agenda. What are we going to talk about?. The driving principles behind Internet Explorer 8 What are web standards and why should you care? Compatibility

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Welcome to Internet Explorer 8

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  1. Welcome to Internet Explorer 8 Damian Edwards Senior Consultant Readify Lachlan Hardy Design Engineer Atlassian

  2. Agenda What are we going to talk about? • The driving principles behind Internet Explorer 8 • What are web standards and why should you care? • Compatibility • What about innovation? • WebSlices & Activities • What should I do now? • Questions

  3. The driving principles behind IE8 • Interoperability • Write web pages once and have them work cross browser • Compatibility • Don’t break web pages that are already out there • Innovation • Introduce new features without effecting the first two principles

  4. Web Standards Driving interoperability between browsers

  5. The Three Layers of Web Design The Content Layer • The bare content of a web page: text, paragraph structure, images, tabular data • Defined in W3C standards like HTML 4.01 and XHTML • Represented by tags with semantic, contextual meaning • Content tags include: • <p>, <code> • <h1>, <h2>, <h3> • <em>, <strong>, <cite>, <abbr> • <img>, <a>, <hr> • <ul>, <ol>, <dl>, <table> • Structural tags include: • <div> • <span> • Markup file should consist of mostly content & structure

  6. demo marking up content

  7. Web Standards

  8. The Three Layers of Web Design The Presentation Layer • Typography • Dimensions and positioning • Background images and colours • Borders, outlines and bullets • Media specific support for visual browsers, aural devices, printers, Braille devices, handheld devices, etc. • Defined in the W3C standard CSS 2.1

  9. demo Acid2

  10. demo adding style with CSS

  11. Web Standards

  12. The Three Layers of Web Design The Behaviour Layer • ECMAscript-262 (JavaScript) • Manipulation of the HTML document • Defined in W3C standard DOM 1.0 Level 2 • Plug-ins

  13. demo adding behaviour with JavaScript

  14. demo does it work?

  15. Compatibility How do we not “break the web” • Who knows what a DOCTYPE switch is? • First introduced in IE5 for Mac • Worked for a while… • Moving forward… version targeting

  16. Compatibility Version Targeting • IE8 uses a completely new rendering engine for standards mode, this is used by default for standards mode rendering • Old rendering engine (IE7) is available in both quirks and standards mode • IE8 includes improvements to the DOM implementation that may break existing sites, e.g. no more document.all • Use the X-UA-Compatible http-equiv meta tag to target a rendering/scripting engine mode: IE8, IE7, IE5 (IE7 quirks) • This will be supported going forward so that in IE9 you can target the IE8 rendering engine (no more quirks mode!)

  17. demo version targeting

  18. What about Innovation? • How does it fit with web standards? • Graceful degradation • Progressive enhancement • Extend functionality • Wide adoption brings wide implementation • Standardisation!

  19. Innovations in IE8 WebSlices • Defines a portion of a page that’s likely to change • User can subscribe to that portion • Highlighted in the page and toolbar like an RSS feed • Added to the favourites bar, highlighted when new content is received • Two classes from hAtommicroformat and an extra container <div class="hslice" id="1"> <p class="entry-title">item - $66.00</p> <div class="entry-content">high bidder:buyer1 … </div> </div>

  20. Innovations in IE8 Activities • Contextual menu options which quickly access a service from any web page • Easiest way to create a “plug-in” that exposes the services of your web site • Used for “look up” and “send to” operations • Described via an XML file • Installed via JavaScript:<button onclick="javascript:window.external.addService('GetMap.xml')">Add Map Activity</button>

  21. Innovations in IE8 Sample Activity <?xml version="1.0" encoding="UTF-8"?><openServiceDescriptionxmlns="http://www.microsoft.com/schemas/openservicedescription/1.0">  <homepageUrl>http://maps.live.com</homepageUrl>  <display>    <name>Map with Windows Live</name>    <icon>http://www.live.com/favicon.ico</icon>  </display>  <activity category="map">    <activityAction context="selection">      <preview action= "http://maps.live.com/geotager.aspx">        <parameter name="b" value="{selection}"/>        <parameter name="clean" value="true"/>        <parameter name="w" value="320"/>        <parameter name="h" value="240"/>        </preview>      <execute action="http://maps.live.com/default.aspx">        <parameter name="where1" value="{selection}" type="text" />      </execute>    </activityAction>  </activity></openServiceDescription>

  22. demo WebSlices & Activities

  23. Innovations in IE8 Other improvements • Vastly improved JavaScript performance • Adaptive Zoom • DOM: Storage, Cross Document Messaging (XDM) • CSS Selectors API • ARIA support • Consolidated Add-on management • Security improvements • Loosely-Coupled IE (LCIE) e.g. tabs run out-of-process • Address bar improvements

  24. Summary What have we seen? • Web standards are important to interoperability • Web standards apply to the three layers of web design: • Content • Presentation • Behaviour • IE8 is better adhering to web standards, Acid2 • Version targeting allows for compatibility • Innovation is good when done correctly • WebSlices & Activities

  25. What should you do now? • Download IE8 Beta 1 for Developers • Check your websites • Add version targeting if needed • Update your browser detection code • User agent sniffing • Conditional comments • Learn to use CSS 2.1 • WebSlices & Activities • Be prepared for lacking tooling, put pressure back on the tooling vendors via blogs, etc.

  26. Resources • IE Blog: http://blogs.msdn.com/ie • W3Schools: http://w3schools.com • http://xhtml.com/en/css/reference • PositionIsEverything: http://www.positioniseverything.net • A List Apart: http://www.alistapart.com • W3C Validators • (X)HTML: http://validator.w3.org • CSS: http://jigsaw.w3.org/css-validator • MSDN • HTML & CSS reference:http://msdn.microsoft.com/en-us/library/aa155110.aspx • CSS Compatibility & Internet Explorer:http://msdn.microsoft.com/en-us/library/cc351024(VS.85).aspx

  27. © 2008 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

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