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RK		 1<!DOCTYPE html>
2<html>
3<head>
4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
5 <meta name="Author" content="KaiRo - Robert Kaiser">
6 <title>Firefox OS Tricorder</title>
7 <link rel="stylesheet" type="text/css" href="slides.css">
8 <script type="text/javascript" src="slides.js"></script>
9 <link rel="contents" href="#index" title="Überblick">
10 <link rel="index" id="link-toc" href="#toc" title="Inhalt">
11 <link rel="start" id="link-start" href="#index" title="Start">
12</head>
13<body onload="docLoaded();">
14<header id="header"><div id="header-text">Tricorder</div>
15 <div id="subheader-text"></div>
16 <a id="headerlogo" href="#index" title="Startseite">Mozilla</a>
17</header>
18<nav id="slidenav">
19 <a href="#toc" id="nav-toc" accesskey="t">Inhalt</a> ||
20 <a href="#index" id="nav-start" accesskey="s">Start</a> ||
21 <a href="#" id="nav-prev" accesskey="p" hidden>&lt; zurück</a>
22 <span id="nav-prev-nolink" class="nolink">&lt; zurück</span> |
23 <a href="#" id="nav-next" id="goNext" accesskey="n" hidden>weiter &gt;</a>
24 <span id="nav-next-nolink" class="nolink">weiter &gt;</span>
25</nav>
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>
KaiRo's slides for various talks, see slides.kairo.at