Peter Lubbers - Pro HTML 5 Programming

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276 ■ INDEX HTML5 page CSS file for, 13, 16 example, 11, 13, 17 HTML5 WebSocket API. See WebSocket API HTML5 Web SQL Database, 235–238 HTML5 Web Storage API. See Web Storage API HTML5 Web Workers API. See Web Workers API HTTP/1.1 101 WebSocket Protocol Handshake, 148 HTTP request headers, 138, 142–143 HTTP response headers, 138, 143 ■ I ID attribute, 30 iframes, 116–117 image data, 205 imageData objects, 205 images inserting into a canvas, 44–45 loading, 44 local and remote sources, 58–59 processing, 205 rotating, 52 using background patterns, 47–49 indexed databases, 235–236 input controls, autocomplete behavior in, 177 input control, 173– 174 input types, new in HTML5 Forms, 172– 173 interaction handling, 263 Interactive content type, 10 intermittent connectivity, 243, 247 Internet Engineering Task Force (IETF), 3 Internet Explorer, 2, 17, 259 Canvas support in, 28, 29 Cross Document Messaging support in, 118 developer tools, 20 DOM and, 22 event model, 22 Forms support in, 171, 177 Geolocation support in, 92 JavaScript engine, 22 offline web application support in, 245 rendering of new elements by, 17 video support in, 69 Web Sockets support in, 146 Web SQL database support in, 235 Web Storage support in, 214 Web Workers support in, 194 XMLHttpRequest support in, 129 interoperability, 5 invalid events, event handlers for, 184–185, 189 IP geolocation, 89, 250
■ J JägerMonkey, 22 JavaScript coding Web Worker JavaScript file, 197 loading and executing, 195 logging and debugging, 20–21 JavaScript engine, 22 JavaScript methods, to find elements, 18 JavaScript Object Notation (JSON), 21 JSON object storage, 238–239 JSON.parse() function, 239 just-in-time (JIT) compilation engine, 22 ■ K Kaazing WebSocket Gateway, 147 key attribute, 222 key(index) function, 220 ■ L latency, reduction in with WebSockets, 144 latitude coordinates, 88 length attribute, 220 lineCap property, 38 lineTo(x, y) function, 31, 36 list attribute, 178, 187 load() function, 74 loadData() function, 239 loadDemo() function, 61–62, 104–107, 154, 161, 231 localStorage object, 214, 219 location information, 87–91 ■ INDEX cell phone data, 90–91 GPS data, 89–90 IP address-based, 89 latitude and longitude coordinates, 88 privacy issues and, 95 sources of, 88–89 user-defined data, 91 Wi-Fi data, 90 location tracker application building, with WebSockets, 158–164 adding Geolocation code, 162 adding WebSocket code, 161–162 code listing, 164–167 coding HTML file, 159–160 logging, JavaScript, 20–21 longitude coordinates, 88 long-polling, 138 loop attribute, 75, 84 ■ M manifest attribute, 246 manifest files, 247–251 markup elements deprecated, 10 new, 9–13 max attribute, 178 maximumAge attribute, 100 maxLength constraint, 188 media controls, 74, 76 277
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THE EXPERT’S VOICE ® IN WEB DEVE
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■ ■ ■ Pro HTML5 Programming P
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For my beautiful wife, Vittoria, an
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Contents ■Foreword ..............
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■ CONTENTS Implementing Canvas Se
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■ CONTENTS Summary ..............
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■ CONTENTS Setting and Retrieving
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Foreword In June 2004, representati
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About the Technical Reviewer � Pa
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Introduction HTML5 is brand new. In
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C H A P T E R 1 ■ ■ ■ Overvie
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CHAPTER 1 ■ OVERVIEW OF HTML5 wit
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Interoperability Simplification CHA
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• MathML • Microdata • Server
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Figure 1-1. A page rendered in stan
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Table 1-2. New sectioning HTML5 ele
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CHAPTER 1 ■ OVERVIEW OF HTML5 Wit
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article { background-color: #eee; d
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Figure 1-2. An HTML5 page with all
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CHAPTER 1 ■ OVERVIEW OF HTML5 The
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Figure 1-3. Developer Tools view in
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CHAPTER 1 ■ OVERVIEW OF HTML5 All
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26 CHAPTER 2 ■ USING THE HTML5 CA
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C H A P T E R 3 ■ ■ ■ Working
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Audio and Video Codecs CHAPTER 3
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Table 3-1. Browser support for HTML
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MEDIA FOR EVERYONE CHAPTER 3 ■ WO
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CHAPTER 3 ■ WORKING WITH HTML5 AU
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Table 3-4 shows a few of the read-o
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find the actual frame since the vid
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LOSING VIEWERS IN THE OF AN EYE CH
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C H A P T E R 4 ■ ■ ■ Using t
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A device can use any of the followi
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Table 4-4. Pros and cons of cell ph
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Figure 4-1. HTML5 Geolocation brows
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CHAPTER 4 ■ USING THE HTML5 GEOLO
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Listing 4-6. The Haversine formula
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Listing 4-9. Adding the loadDemo()
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THE EASIEST WAY TO TRAVEL CHAPTER 4
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var deltaLatitude = toRadians(latit
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Practical Extras CHAPTER 4 ■ USIN
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Show Me on a Google Map CHAPTER 4
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CHAPTER 5 ■ USING THE COMMUNICATI
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var defaultTitle = "Portal [http://
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Send Notification CHAPTER 5 ■ U
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Figure 5-4. Difference between clie
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“SEEMINGLY ARBITRARY” TIMES CHA
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crossOriginRequest.upload.onprogres
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Figure 6-1. The complexity of real-
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Listing 6-2. The WebSocket interfac
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Listing 6-4. HTTP response header H
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Figure 6-4. Latency comparison betw
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EXISTING WEBSOCKET SERVERS CHAPTER
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CHAPTER 6 ■ USING THE HTML5 WEBSO
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def terminate(self): self.ready_sta
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self.sessions = [] self.port = port
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Basic API Usage CHAPTER 6 ■ USING
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HTML5 WebSocket / Geolocation Track
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} } Summary incomingRow = docume
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170 CHAPTER 7 ■ USING THE HTML5 F
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194 CHAPTER 8 ■ USING THE HTML5 W
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