HTML5 Developer's Cookbook

Chuck Hudson has developed mobile web and mobile solutions since the 1990s. A successful “techpreneur” and long-time geek-in-training, he is a certified PHP programmer and PayPal developer. He teaches web programming, mobile technology, and entrepreneurship throughout the Boston and Atlanta regions. In 2008, he received the eBay Star Developer award for the first iPhone mobile web and native apps.   Tom Leadbetter is a web designer and developer based in Liverpool, England. He has been working with HTML5 since early 2009 and blogs about it at HTML5Doctor.com.

Introduction xix Acknowledgments xxvii

About the Authors xxix

 

Chapter 1: New Structural Elements in HTML5 1

BEGINNER RECIPE: Building an HTML5 Starter Document 2

Where Do All the New Elements Come From? 4

BEGINNER RECIPE: Using the header Element to Create a Site Header 5

BEGINNER RECIPE: Using the hgroup Element to Group Headings 7

BEGINNER RECIPE: Creating Navigation with the nav Element 8

INTERMEDIATE RECIPE: Using the New article Element 11

INTERMEDIATE RECIPE: Grouping Content with the section Element 12

BEGINNER RECIPE: Creating a Sidebar with the aside Element 15

BEGINNER RECIPE: Using the footer Element 17

INTERMEDIATE RECIPE: Using the HTML5 Outliner to Ensure the Correct Structure 19

ADVANCED RECIPE: Using All the New Elements to Build a News Page 21

ADVANCED RECIPE: Using All the New Elements to Build a Search Results Page 25

Summary 30

 

Chapter 2: Grouping, Text-Level, and Redefined Semantics 31

BEGINNER RECIPE: Marking Up Figures and Captions with the figure and figcaption Elements 31

BEGINNER RECIPE: Marking Up the Date and Time with the time Element 34

BEGINNER RECIPE: Making a Native Toggle Widget with the details Element 35

BEGINNER RECIPE: Using the address Element for Contact Information 37

BEGINNER RECIPE: Highlighting Text with the mark Element 38

BEGINNER RECIPE: Using the s Element to Show Inaccurate or Irrelevant Content 39

Changes to Existing Elements 39

BEGINNER RECIPE: Wrapping Links Around Elements 47

INTERMEDIATE RECIPE: Adding Semantic Information with Microdata 47

INTERMEDIATE RECIPE: Using WAI-ARIA with HTML5 49

ADVANCED RECIPE: Marking Up an Article Page with Comments 51

Summary 54

 

Chapter 3: Browser Handling in HTML5 55

BEGINNER RECIPE: Dealing with Internet Explorer 55

Boilerplates 57

BEGINNER RECIPE: Testing for HTML5 Features 57

INTERMEDIATE RECIPE: Leveraging jQuery to Replace a Calendar 59

INTERMEDIATE RECIPE: Using Modernizr to Detect Features 62

Polyfilling 66

Useful HTML5 Verification Sites 67

Summary 67

 

Chapter 4: New Layout and Style Techniques with CSS3 69

INTERMEDIATE RECIPE: Creating a Responsive Design with CSS3 Media Queries 69

BEGINNER RECIPE: Using Custom Fonts with @font-face 77

INTERMEDIATE RECIPE: Making Buttons with CSS Gradients and Multiple Backgrounds 80

INTERMEDIATE RECIPE: Enhancing a Site with Transformations and Transitions 84

ADVANCED RECIPE: Creating Animations with CSS 89

Summary 94

 

Chapter 5: HTML5 Web Forms 95

Validation 95

HTML 4 Input Types 95

BEGINNER RECIPE: Creating a Form to Collect Contact Information 97

BEGINNER RECIPE: Creating a Search Form with input type="search" 101

BEGINNER RECIPE: Creating Calendar and Time Controls 102

BEGINNER RECIPE: Creating a Number Picker 105

BEGINNER RECIPE: Creating a Slider (Without the Need for JavaScript) 106

BEGINNER RECIPE: Creating a Color Picker 107

BEGINNER RECIPE: Displaying Results with the output Element 108

BEGINNER RECIPE: Using Form Placeholder Text 109

BEGINNER RECIPE: Creating an Autocomplete Feature with list and datalist 110

BEGINNER RECIPE: Tracking the Completion of a Task with the progress Element 111

BEGINNER RECIPE: Measuring with the meter Element 112

BEGINNER RECIPE: Jumping to a form Element When the Page Loads 114

BEGINNER RECIPE: Allowing Multiple Entries 115

BEGINNER RECIPE: Basic Validation with the required Attribute 116

INTERMEDIATE RECIPE: Writing Your Own Validation Rule 117

BEGINNER RECIPE: Limiting User Input 118

INTERMEDIATE RECIPE: Customizing and Styling the Form 119

Error Messages 121

ADVANCED RECIPE: Putting It All Together to Make a Sign-Up Form 121

Summary 125

 

Chapter 6: Drawing with Canvas 127

Canvas Overview 127

BEGINNER RECIPE: Laying a Grid on the Canvas 130

Canvas Tools 134

BEGINNER RECIPE: Making Simple Shapes and Lines 134

INTERMEDIATE RECIPE: Drawing Polygons with a Path 139

INTERMEDIATE RECIPE: Drawing Arcs and Circles 143

BEGINNER RECIPE: Adding Text 144

BEGINNER RECIPE: Drawing an Image 145

INTERMEDIATE RECIPE: Cropping an Image 146

INTERMEDIATE RECIPE: Animating a Sprite Map 147

Canvas Transformations 150

ADVANCED RECIPE: Animating an Image 151

ADVANCED RECIPE: Animating a Vertical Bar Chart 155

Summary 162

 

Chapter 7: Embedding Video with HTML5 163

BEGINNER RECIPE: Including Video with the video Element 163

INTERMEDIATE RECIPE: Enabling Video for All Browsers 166

INTERMEDIATE RECIPE: Creating a Video with Subtitles and Captions 173

The Media API 177

ADVANCED RECIPE: Making Your Own Custom Controls 178

Summary 186

 

Chapter 8: Embedding Audio with HTML5 187

BEGINNER RECIPE: Including Audio with the audio Element 187

INTERMEDIATE RECIPE: Enabling Audio for All Browsers 188

New Audio Attributes 190

The Media API 192

INTERMEDIATE RECIPE: Creating a Beat Mixer 193

ADVANCED RECIPE: Adding Streaming Radio 197

Summary 206

 

Chapter 9: Changing Browser History 207

History Basics 207

BEGINNER RECIPE: Adding to History with pushState 208

BEGINNER RECIPE: Creating an Image Viewer 211

INTERMEDIATE RECIPE: Popping State in the Image Viewer 214

BEGINNER RECIPE: Changing History with replaceState 216

INTERMEDIATE RECIPE: Changing the Page History 218

ADVANCED RECIPE: Using Advanced State Data Objects to Pass Information Across Pages 221

INTERMEDIATE RECIPE: Testing History Security 225

Helpful Libraries 228

Summary 228

 

Chapter 10: Location Awareness with the Geolocation API 231

Geolocation Overview 231

BEGINNER RECIPE: Determining Your Location with a Simple getCurrentPosition 233

INTERMEDIATE RECIPE: Mapping a Location with getCurrentPosition 237

INTERMEDIATE RECIPE: Determining Distance with PositionOptions 243

ADVANCED RECIPE: Following a Moving Location with watchPosition 250

Summary 257

 

Chapter 11: Client-Side Storage 259

Client-Side Storage Overview 259

BEGINNER RECIPE: Getting and Setting Session Storage 263

BEGINNER RECIPE: Styling from Session Storage 266

INTERMEDIATE RECIPE: Storing Forms with Local Storage 271

ADVANCED RECIPE: Catching Events in Local Storage 275

Web SQL Database API 283

ADVANCED RECIPE: Using a Web Database for a Grocery List 286

Summary 295

 

Chapter 12: Communication and Threading 297

WebSocket API Overview 297

BEGINNER RECIPE: Talking Through Web Sockets 299

Threading Through Web Workers 302

BEGINNER RECIPE: Creating a Web Worker 304

INTERMEDIATE RECIPE: Adding Two-Way Communication 308

ADVANCED RECIPE: Leveraging a Shared Web Worker 311

Summary 318

 

Chapter 13: Browser Experience in HTML5 319

Drag and Drop API 319

BEGINNER RECIPE: Dragging and Dropping Across divs 321

ADVANCED RECIPE: Leveraging Events and dataTransfer 325

Application Cache and API 334

BEGINNER RECIPE: Creating a Manifest File 335

BEGINNER RECIPE: Using Web Pages Offline 337

Application Cache API 340

Notification API 341

BEGINNER RECIPE: Displaying a Simple Notification 344

ADVANCED RECIPE: Creating a Tweet Notification Page 348

Summary 357

 

Chapter 14: Working with Local Files 359

File API Overview 359

BEGINNER RECIPE: Getting File Attributes 360

BEGINNER RECIPE: Processing Multiple Files with Drag and Drop 362

The FileReader Interface 367

INTERMEDIATE RECIPE: Previewing Images Through readAsDataURL 368

ADVANCED RECIPE: Parsing a CSV File with readAsText 373

File API Extended Specifications 381

ADVANCED RECIPE: Creating a Local File 382

Summary 388

 

Chapter 15: Integrating Device Data 389

Brief Device APIs History 389

Contacts API 391

BEGINNER RECIPE: Retrieving All Contacts and Mobile Numbers 393

Messaging API 396

Network Information API 397

Battery Status Events 398

HTML Media Capture 398

INTERMEDIATE RECIPE: Capturing Pictures with File Input 399

Device Orientation and Motion Events 403

INTERMEDIATE RECIPE: Creating a Bubble Level 404

Summary 409

 

Recipes 411

 

Index 415