linuxwochen2015/index.html

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   5   <meta name="Author" content="KaiRo - Robert Kaiser">
   6   <title>Firefox OS Tricorder</title>
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  14 <header id="header"><div id="header-text">Tricorder</div>
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  16   <a id="headerlogo" href="#index" title="Startseite">Mozilla</a>
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  26
  27 <article id="toc" title="Inhalt">
  28 <h1>Inhalt</h1>
  29 <h2>Firefox OS Tricorder</h2>
  30
  31 <div class="captionedbox">
  32 <p class="captionedbox-caption">Folgende Folien sind in dieser Präsentation enthalten:</p>
  33 <div class="captionedbox-content">
  34 <ul id="toc-list">
  35 </ul>
  36 </article>
  37
  38 <article id="index" title="Start Page">
  39 <h1>Firefox OS Tricorder</h1>
  40 <h2>Auslesen von Gerätesensoren mittels JavaScript</h2>
  41
  42 <div class="simplebox">
  43 <mark><a href="http://home.kairo.at/">Robert Kaiser</a></mark>,
  44 "KaiRo" &lt;kairo@kairo.at&gt;
  45 <br><small>Release Quality Manager, Mozilla</small>
  46 </div>
  47
  48 <div class="captionedbox">
  49 <p class="captionedbox-caption">Folien:
  50   <a href="https://slides.kairo.at/linuxwochen2015/">https://slides.kairo.at/linuxwochen2015/</a></p>
  51 <div class="captionedbox-content small">
  52 <ul class="small">
  53   <li>Erstellt für einen
  54     <a href="https://cfp.linuxwochen.at/de/LWW15/public/events/283">Vortrag</a>
  55     auf den <a href="http://www.linuxwochen.at/">Linuxwochen 2015</a> in Wien.</li>
  56   <li>Geschrieben in HTML 5 mit CSS 3 und JavaScript.</li>
  57   <li>Navigation mit Links auf allen Folien, mit Accesskeys
  58    (z.B. "n"/Alt+Umschalt+N für "next"/weiter) oder vor/zurück-Pfeilasten</li>
  59   <li><a href="#toc">Inhalt</a></li>
  60   <li><a rel="license" href="http://creativecommons.org/licenses/by-sa/3.0/at/"><img
  61       alt="Lizenziert unter CC-BY-SA," style="border-width:0;vertical-align:bottom;"
  62       src="cc-by-sa-80x15.png"></a> 04/2015 Robert Kaiser -
  63     "Mozilla", "Firefox" und deren Logos sind
  64     <a href="http://www.mozilla.org/foundation/trademarks/list.html">Handelsmarken
  65     der Mozilla Foundation</a>; <a href="http://www.startrek.com/">Star Trek</a>
  66     und zugehörige Elemente sind Warenzeichen von
  67     <a href="http://www.paramount.com/">Paramount Pictures</a>.</li>
  68 </ul>
  69 </div>
  70 </div>
  71 </article>
  72
  73 <article id="tricorder" title="Tricorder">
  74 <h1>Was ist ein Tricorder?</h1>
  75
  76 <div class="simplebox">
  77 <img src="starfleet_tricorder_2370.jpg" class="slidepic"
  78  alt="Starfleet Tricorder, 2370">
  79 <p>Sensorgerät wie in "Star Trek" zu sehen</p>
  80 <p>Zeigt jegliche Daten an, die gerade benötigt werden, in Plot-Geschwindigkeit und -auflösung.</p>
  81 <p class="ensurepicinbox"></p>
  82 </div>
  83 </article>
  84
  85 <article id="fxos-tricorder" title="Firefox OS Tricorder">
  86 <h1>Firefox-OS-Tricorder-App</h1>
  87
  88 <div class="simplebox">
  89 <p>Zeigt Daten von Gerätesensoren an, die von WebAPIs zur Verfügung gestellt werden.</p>
  90 <p><a href="https://marketplace.firefox.com/app/tricorder/">marketplace.firefox.com/app/tricorder/</a></p>
  91 <p>Code: <a href="https://github.com/KaiRo-at/tricorder">github.com/KaiRo-at/tricorder</a></p>
  92 </div>
  93 </article>
  94
  95 <article id="ui" title="UI">
  96 <h1>Firefox-OS-Tricorder-Oberfläche</h1>
  97
  98 <div class="simplebox cent">
  99 <img src="tricorder-ui.svg"
 100      alt="Beschreibung der Tricorder-Oberfläche">
 101 </div>
 102 </article>
 103
 104 <article id="module" title="Modul">
 105 <h1>Modul</h1>
 106
 107 <div class="simplebox">
 108 <ul>
 109   <li>HTML (Schalter, Anzeige)</li>
 110   <li>JS-Objekt
 111     <ul>
 112       <li>2 Methoden: activate(), deactivate()</li>
 113     </ul>
 114   </li>
 115 </ul>
 116 </div>
 117 </article>
 118
 119 <article id="position" title="Positions-Modul">
 120 <h1>Positions-Modul</h1>
 121
 122 <div class="simplebox">
 123 <p>GPS, WLAN/Handysender-Peilung</p>
 124 <p>API: <a href="https://developer.mozilla.org/en-US/docs/Web/API/Geolocation">Geolocation</a></p>
 125 <p>Berechtigung: geolocation</p>
 126 </div>
 127 </article>
 128
 129 <article id="position-code" title="Position: Code">
 130 <h1>Position: Code</h1>
 131
 132 <div class="simplebox">
 133 <pre>
 134   this.watchID = <a href="https://developer.mozilla.org/en-US/docs/Web/API/Geolocation.watchPosition">navigator.geolocation.watchPosition</a>(
 135     function(position) {
 136       position.coords.latitude / .longitude / .accuracy / ...
 137     },
 138     function(error) { ... },
 139     {enableHighAccuracy: true, maximumAge: 10000, timeout: 60000}
 140   );
 141
 142   navigator.geolocation.clearWatch(this.watchID);
 143 </pre>
 144 </div>
 145 </article>
 146
 147 <article id="gravity" title="Schwerkraft-Modul">
 148 <h1>Schwerkraft-Modul ("Gravity")</h1>
 149
 150 <div class="simplebox">
 151 <p>Accelerometer, Magnetometer</p>
 152 <p>APIs: <a href="https://developer.mozilla.org/en-US/docs/Web/API/DeviceOrientationEvent">deviceorientation</a>-,
 153 <a href="https://developer.mozilla.org/en-US/docs/Web/API/DeviceMotionEvent">devicemotion</a>-Erignisse</p>
 154 <p>Berechtigungen: ---</p>
 155 </div>
 156 </article>
 157
 158 <article id="gravity-code" title="Schwerkraft: Code">
 159 <h1>Schwerkraft: Code</h1>
 160
 161 <div class="simplebox">
 162 <pre>
 163   window.addEventListener("<a href="https://developer.mozilla.org/en-US/docs/Web/Events/deviceorientation">deviceorientation</a>", this.orientEvent, true);
 164   window.addEventListener("<a href="https://developer.mozilla.org/en-US/docs/Web/Events/devicemotion">devicemotion</a>", this.motionEvent, true);
 165
 166   orientEvent: function(orientData) {
 167     orientData.alpha / .beta / .gamma (in °)
 168   },
 169   motionEvent: function(event) {
 170     event.accelerationIncludingGravity.x / .y / .z (in m/s²)
 171   },
 172
 173   window.removeEventListener("deviceorientation", this.orientEvent, true);
 174   window.removeEventListener("devicemotion", this.motionEvent, true);
 175 </pre>
 176 </div>
 177 </article>
 178
 179 <article id="sound" title="Schall-Modul">
 180 <h1>Schall-Modul ("Sound")</h1>
 181
 182 <div class="simplebox">
 183 <p>Mikrofon</p>
 184 <p>APIs: <a href="https://developer.mozilla.org/en-US/docs/Web/Guide/API/WebRTC">WebRTC</a>(getUserMedia),
 185 <a href="https://developer.mozilla.org/en-US/docs/Web/API/Web_Audio_API">WebAudio</a></p>
 186 <p>Berechtigungen: audio-capture</p>
 187 </div>
 188 </article>
 189
 190 <article id="sound-code" title="Schall: Code">
 191 <h1>Schall: Code</h1>
 192
 193 <div class="simplebox">
 194 <pre>
 195   <a href="https://developer.mozilla.org/en-US/docs/NavigatorUserMedia.getUserMedia">navigator.getUserMedia</a>({ audio: true },
 196     function(aLocalMediaStream) {
 197       gModSound.mAudio.stream = aLocalMediaStream;
 198       gModSound.mAudio.context = new <a href="https://developer.mozilla.org/en-US/docs/Web/API/AudioContext">window.AudioContext</a>();
 199       gModSound.mAudio.input =
 200           gModSound.mAudio.context.createMediaStreamSource(gModSound.mAudio.stream);
 201       gModSound.mAudio.analyzer = gModSound.mAudio.context<a href="https://developer.mozilla.org/en-US/docs/Web/API/AnalyserNode">.createAnalyser</a>();
 202       gModSound.mAudio.input.connect(gModSound.mAudio.analyzer);
 203     },
 204     function(err) { ... }
 205   );
 206
 207   // in window.requestAnimationFrame():
 208   var data = new Uint8Array(gModSound.mAudio.frequencySlices);
 209   gModSound.mAudio.analyzer<a href="https://developer.mozilla.org/en-US/docs/Web/API/AnalyserNode.getByteFrequencyData">.getByteFrequencyData</a>(data);
 210   // ... do something with data ...
 211
 212   gModSound.mAudio.stream.stop();
 213 </pre>
 214 </div>
 215 </article>
 216
 217 <article id="environment" title="Umgebungs-Modul">
 218 <h1>Umgebungs-Modul ("Environment")</h1>
 219
 220 <div class="simplebox">
 221 <p>Licht, Entfernung; Taschenlampe</p>
 222 <p>APIs: <a href="https://developer.mozilla.org/en-US/docs/Web/API/DeviceLightEvent">devicelight</a>-,
 223 <a href="https://developer.mozilla.org/en-US/docs/Web/API/DeviceProximityEvent">deviceproximity</a>-Ereignisse;
 224 <a href="https://developer.mozilla.org/en-US/docs/Web/API/Camera_API">Camera API</a></p>
 225 <p>Berechtigungen: ---; camera (für Lampe)</p>
 226 </div>
 227 </article>
 228
 229 <article id="environment-code" title="Umgebung: Code">
 230 <h1>Umgebung: Code</h1>
 231
 232 <div class="simplebox">
 233 <pre>
 234   window.addEventListener("<a href="https://developer.mozilla.org/en-US/docs/Web/Events/devicelight">devicelight</a>", this.lightEvent, true);
 235   window.addEventListener("<a href="https://developer.mozilla.org/en-US/docs/Web/Events/deviceproximity">deviceproximity</a>", this.proxEvent, true);
 236
 237   lightEvent: function(lightData) {
 238     lightData.value (in lux)
 239   },
 240   proxEvent: function(proxData) {
 241     proxData.min &lt;= .value &lt;= .max (in cm)
 242   },
 243
 244   window.removeEventListener("devicelight", this.lightEvent, true);
 245   window.removeEventListener("deviceproximity", this.proxEvent, true);
 246
 247   // Taschenlampe mittels <a href="https://developer.mozilla.org/en-US/docs/Web/API/CameraManager.getCamera">navigator.mozCameras.getCamera</a>
 248   // Funktioniert nicht immer und kann sich jederzeit ändern, bitte Code aif GitHub nachlesen.
 249 </pre>
 250 </div>
 251 </article>
 252
 253 <article id="device" title="Geräte-Modul">
 254 <h1>Geräte-Modul ("Device")</h1>
 255
 256 <div class="simplebox">
 257 <p>Batterie</p>
 258 <p>APIs: <a href="https://developer.mozilla.org/en-US/docs/Web/API/Battery_Status_API">Battery Status API</a></p>
 259 <p>Berechtigungen: ---</p>
 260 </div>
 261 </article>
 262
 263 <article id="device-code" title="Gerät: Code">
 264 <h1>Gerät: Code</h1>
 265
 266 <div class="simplebox">
 267 <pre>
 268   0 &lt;= <a href="https://developer.mozilla.org/en-US/docs/Web/API/Navigator.battery">navigator.battery</a>.level &lt;= 1
 269
 270   .charging (true/false)
 271
 272   .chargingTime (in s; 0 or Infinity: unbekannt)
 273
 274   .dischargingTime (in s; 0 or Infinity: unbekannt)
 275 </pre>
 276 </div>
 277 </article>
 278
 279 <article id="end" title="Ende">
 280
 281 <div class="simplebox">
 282 <h1 class="cent" style="position: relative; z-index: 3; color: #FFFFFF; font-size: 2.5em;">Fragen?</h1>
 283 <img src="mister_tricorder.jpg" class="sshot"
 284      style="width: 100%; margin-top: -4.5em; position: relative; z-index: 1;"
 285      alt="Data &amp; Mister Tricorder">
 286 </div>
 287 </article>
 288
 289 </body>
 290 </html>