HTML5 Developer's Cookbook

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.

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

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