complete the FOSDEM 2015 slides
authorRobert Kaiser <kairo@kairo.at>
Thu, 29 Jan 2015 02:10:45 +0000 (03:10 +0100)
committerRobert Kaiser <kairo@kairo.at>
Thu, 29 Jan 2015 02:10:45 +0000 (03:10 +0100)
fosdem2015/index.html
fosdem2015/tricorder-ui.svg [new file with mode: 0644]
fosdem2015/tricorder_20150124_01.png [new file with mode: 0644]

index 1522846..b976577 100755 (executable)
@@ -87,7 +87,7 @@
 <h1>Firefox OS Tricorder App</h1>
 
 <div class="simplebox">
-<p>Displays sensor data</p>
+<p>Displays data from device sensors as exposed by WebAPIs</p>
 <p><a href="https://marketplace.firefox.com/app/tricorder/">marketplace.firefox.com/app/tricorder/</a></p>
 <p>Code: <a href="https://github.com/KaiRo-at/tricorder">github.com/KaiRo-at/tricorder</a></p>
 </div>
@@ -96,7 +96,9 @@
 <article id="ui" title="UI">
 <h1>Firefox OS Tricorder UI</h1>
 
-<div class="simplebox">
+<div class="simplebox cent">
+<img src="tricorder-ui.svg"
+     alt="Tricorder UI description">
 </div>
 </article>
 
 <div class="simplebox">
 <pre>
   this.watchID = navigator.geolocation.watchPosition(
-    function(position) { ... },
+    function(position) {
+      position.coords.latitude / .longitude / .accuracy / ...
+    },
     function(error) { ... },
     {enableHighAccuracy: true, maximumAge: 10000, timeout: 60000}
   );
 <h1>Gravity Module</h1>
 
 <div class="simplebox">
-<p>Accelerometer, Magnetic Compass</p>
+<p>Accelerometer, Magnetometer</p>
 <p>APIs: deviceorientation, devicemotion events</p>
 <p>Permissions: ---</p>
 </div>
 
 <div class="simplebox">
 <pre>
+  navigator.getUserMedia({ audio: true },
+    function(aLocalMediaStream) {
+      gModSound.mAudio.stream = aLocalMediaStream;
+      gModSound.mAudio.context = new window.AudioContext();
+      gModSound.mAudio.input = gModSound.mAudio.context.createMediaStreamSource(gModSound.mAudio.stream);
+      gModSound.mAudio.analyzer = gModSound.mAudio.context.createAnalyser();
+      gModSound.mAudio.input.connect(gModSound.mAudio.analyzer);
+    },
+    function(err) { ... }
+  );
+
+  // in window.requestAnimationFrame():
+  var data = new Uint8Array(gModSound.mAudio.frequencySlices);
+  gModSound.mAudio.analyzer.getByteFrequencyData(data);
+  // ... do something with data ...
+
+  gModSound.mAudio.stream.stop();
 </pre>
 </div>
 </article>
 
 <div class="simplebox">
 <pre>
+  window.addEventListener("devicelight", this.lightEvent, true);
+  window.addEventListener("deviceproximity", this.proxEvent, true);
+
+  lightEvent: function(lightData) {
+    lightData.value (in lux)
+  },
+  proxEvent: function(proxData) {
+    proxData.min &lt;= .value &lt;= .max (in cm)
+  },
+
+  window.removeEventListener("devicelight", this.lightEvent, true);
+  window.removeEventListener("deviceproximity", this.proxEvent, true);
+
+  // flash/torch code works via navigator.mozCameras.getCamera
+  // flaky and subject to change, please consult code on github
 </pre>
 </div>
 </article>
 
 <div class="simplebox">
 <pre>
+  (navigator.battery.level * 100).toFixed(1) + "%";
+
+  if (navigator.battery.charging) {
+    if (navigator.battery.chargingTime == 0 ||
+        navigator.battery.chargingTime == Infinity) {
+      "charging";
+    }
+    else {
+      "charging, " + navigator.battery.chargingTime + "s remaining";
+    }
+  }
+  else {
+    if (navigator.battery.dischargingTime == 0 ||
+        navigator.battery.dischargingTime == Infinity) {
+      "discharging";
+    }
+    else {
+      navigator.battery.dischargingTime + "s usage remaining";
+    }
+  }
 </pre>
 </div>
 </article>
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diff --git a/fosdem2015/tricorder_20150124_01.png b/fosdem2015/tricorder_20150124_01.png
new file mode 100644 (file)
index 0000000..04cef2d
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