Peter Lubbers - Pro HTML 5 Programming

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274 ■ INDEX Web SQL database support in, 235, 236 WebSockets support in, 146 Web Storage support in, 214 Web Workers support in, 194 video support in, 69 XMLHttpRequest support in, 129 viewing offline cache in, 245 Flash video, 70 Flow content type, 10 form validationm 180–185 passwords, 190–191 turning off, 185 validation feedback, 184–185 validation fields and functions, 183–184 validity constraints, 181–183 ValidityState object, 180–181 element, 169 Forms API, 169–191 autocomplete attribute, 177 autofocus attribute, 177–178 browser support, 170–171 building application with, 185–191 controls, 169 datalist element, 178 form validation, 180–185 functional behavior, 170 list attribute, 178 max attribute, 178 min attribute, 178 new attributes and functions, 176–179 new elements in, 171–175 new functionality, 170 overview, 169–174 placeholder attribute, 176 required attribute, 179 step attribute, 179 using, 176–185 valueAsNumber function, 179 vs. XForms, 170 framebusting, 135 frameHeight variable, 79 frameWidth variable, 79 full-screen video, 68 functional forms, 170 ■ G Geolocation API, 87–114 browser support for, 91–92, 95 building application with, 101–110 code sample, 108–110 processing geolocation data, 104– 107 writing HTML display, 104 Google Maps and, 113–114 location information, 87–91 location tracker application and, 162 position requests, 96–101 privacy and, 92–95 request attributes, optional, 99–100 status bar, 111–112 tracking code 255
uses of, 87 using, 95–101 geolocation data cell phone, 90–91 GPS, 89–90 IP address, 89 processing, 104–107 user-defined, 91 Wi-Fi, 90 gestures, 264–265 getColor() function, 62 getContext() function, 34, 260 getCurrentPosition() function, 112 getElementById() function, 18 getElementsByName() function, 18 getElementsByTagName() function, 18 getImageData() function, 57–59 getItem(key) function, 220 GL Shading Language (GLSL), 261 glass pane, 63 Google Chrome. See Chrome Google Maps, 113–114 GPS geolocation data, 89–90 gradients, 45–47 ■ H handleLocationError() function, 98–99 handshake headers, 148 Heading content type, 10 heads-up displays (HUDs), 260 heatmaps, 59–62 height attribute, 77 Hickson, Ian, 139 HTML, history of, 1 html element, 246 HTML page adding canvas element to, 30–32 background noise in, 84 HTML5 browser support for, 259 content types, 10 design principles, 3 compatibility, 3 interoperability, 5 security, 4 separation of presentation and content, 4 universal access, 5 utility, 4 future of, 259–267 history of, 1–2 new features in, 8–23 organizations developing, 3 overview, 1–23 plug-in free paradigm, 5, 6 specification, 2, 6–7 HTML5 Canvas API. See Canvas API HTML5 Forms API. See Forms API ■ INDEX HTML5 Geolocation API. See Geolocation API 275
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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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Download from Wow! eBook 32 CHAPTE
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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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Page 296 and 297: 276 ■ INDEX HTML5 page CSS file f
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Page 304: 284 ■ INDEX stopping Web Workers,
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Peter Lubbers - Pro HTML 5 Programming

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