Apress Pro HTML5 with Visual Studio 2012 (2012).pdf

For your convenience Apress has placed some of the front

matter material after the index. Please use the Bookmarks

and Contents at a Glance links to access them.

Contents at a Glance

About the Author ........................................................................................................ xvii

About the Technical Reviewer ..................................................................................... xix

Acknowledgments ....................................................................................................... xxi

Introduction ............................................................................................................... xxiii

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Part 1: What is HTML5?

........................................................................... 1

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Chapter 1: Before You Begin

........................................................................................ 3

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Part 2: Using the New HTML5 Features

................................................. 17

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Chapter 2: ASP.NET Web Forms

................................................................................. 19

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Chapter 3: MVC Web Applications

............................................................................. 41

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Chapter 4: Cascading Style Sheets

............................................................................ 75

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Chapter 5: Scripting Enhancements

........................................................................ 107

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Chapter 6: Mobile Web Applications

........................................................................ 125

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Part 3: Developing with HTML5

........................................................... 145

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Chapter 7: Supporting Older Browsers

.................................................................... 147

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Chapter 8: Audio and Video

..................................................................................... 169

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Chapter 9: Scalable Vector Graphics

....................................................................... 193

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Chapter 10: Canvas

................................................................................................. 223

■ Contents at a GlanCe

■

Part 4: Digging Deeper

......................................................................... 253

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Chapter 11: Indexed DB

........................................................................................... 255

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Chapter 12: Geolocation and Mapping

.................................................................... 281

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Chapter 13: WebSockets

.......................................................................................... 299

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Chapter 14: Drag and Drop

...................................................................................... 343

Appendix A: Chapter 4 - Sample Content ................................................................... 371

Appendix B: Chapter 4 – Completed Style .................................................................. 377

Appendix C: Chapter 14 – Final Code.......................................................................... 383

Index........................................................................................................................... 391

Introduction

HTML5 is such an exciting opportunity for software developers. For a long time, the web has been the favorite

platform for providing software applications to both external and internal users because of its reach and ease of

deployment and maintenance. he primary limitation has been the client-side support, which can severely limit

the user experience. With the lack of cross-browser standardization, using any of the advanced features often

meant broken pages on older browsers or diicult polyills.

HTML5 is a game-changer. Not only does it bring browser vendors together with a common set of

speciications, but the features included in HTML5 enable web applications to provide a user experience that

rivals even client applications. With mobile devices rapidly jumping on the HTML5 bandwagon, the number of

HTML5 devices is expected to exceed 1 billion in the next year. I have seen the rise of many technologies and

standards that promised to change the future of software development, but the momentum and support for

HTML5 seems unprecedented.

Having said that, we are not quite there yet. Many of the speciications are still in draft and browsers, even

current releases of them, do not all support the features that have been agreed upon. However, there are already

enough features that are generally supported by browser vendors to make the switch to HTML5 very attractive.

And the future is even more promising.

Who This Book Is For

HTML5 consists of changes in the markup, CSS improvements, and JavaScript enhancements and can be used

with any implementation platform. However, this book presents these new features with the professional Visual

Studio developer in mind. My goal is to answer the question “What would most ASP.NET developers need to

know to incorporate the beneits of HTML5?” he sample applications are written using Visual Studio 2012 and

many of the examples are speciic to the ASP.NET platform, including web forms and MVC 4.

How This Book Is Structured

I’ve split the book into four parts, each going a bit deeper into the more advanced features.

Part 1 provides a quick introduction into web application technologies. his explains the operating

environment that web developers ind themselves in and where the HTML5 umbrella its in.

Part 2 covers the basics of HTML5, including form development with both traditional web forms as well

as the MVC model. Chapter 4 provides a really good overview of CSS with a focus on the new features available

in CSS3. his part also demonstrates some of the scripting enhancements in Visual Studio 2012 and includes a

discussion of how to support mobile devices with HTML5.

Part 3 takes this further and demonstrates some of the really cool features, including the new audio and

video elements. I then demonstrate the graphics support available using both SVG and Canvas. his part also

includes a discussion of how to use polyills to deal with older browsers.

Part 4 explains some of the more advanced features such as Indexed DB, which provides for a persistent,

client-side data store. his section includes a demonstration of geolocation and mapping using Bing Maps. It also

explains how web sockets and drag-and-drop can be used for advanced applications.

xxiii

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