X-Git-Url: https://git-public.kairo.at/?p=tricorder.git;a=blobdiff_plain;f=js%2Ftricorder.js;h=bd11f73b7232cba30a25a6db537536992e44edd8;hp=707910a9ba0d9f7e6fd8633bfbccfea70709e83f;hb=HEAD;hpb=d3e5ba11e304b4a5f3ed3c0625c2dc6cc2a4073b

diff --git a/js/tricorder.js b/js/tricorder.js
index 707910a..bd11f73 100644
--- a/js/tricorder.js
+++ b/js/tricorder.js
@@ -5,6 +5,9 @@
 var gStardate, gSDBase;
 var gSounds = {};
 
+navigator.getUserMedia = (navigator.getUserMedia || navigator.webkitGetUserMedia ||
+                          navigator.mozGetUserMedia || navigator.msGetUserMedia);
+
 window.onload = function() {
   setTimeout(updateStardate, 0);
   gSounds.scan = new Audio("sound/scan.opus");
@@ -14,20 +17,42 @@ window.onload = function() {
   gSounds.keyaction = new Audio("sound/key-action.opus");
   gSounds.keypress = new Audio("sound/key-press.opus");
 
+  document.getElementById("fullScreenButton").addEventListener("click",
+      function(aEvent) { toggleFullscreen(); }, false);
+
+  var navItems = document.getElementById("navlist").children;
+  for (var i = 0; i <= navItems.length - 1; i++) {
+    navItems[i].addEventListener("click",
+        function(aEvent) {
+          switchModule(aEvent.target.id.replace("nav", ""));
+        }, false);
+  }
+
   gSounds.launch.play();
-  window.addEventListener("beforeunload", function( event ) {
-    gSounds.shutdown.play();
-  }, false);
+  window.addEventListener("beforeunload",
+      function(aEvent) { gSounds.shutdown.play(); }, false);
+}
+
+window.onresize = function() {
+  if (document.getElementById("sectSound").classList.contains("active")) {
+    gModSound.resize();
+  }
 }
 
 function updateStardate() {
+  // Stardate rules foggy at best. See http://en.wikipedia.org/wiki/Stardate
+  // and the Memory Alpha article linked there for more details.
+  // We roughly lean on TNG scale by splitting an Earth year into exactly 1000
+  // units, but we put the 0 point at the TV premiere of The Original Series.
   if (!gStardate)
     gStardate = document.getElementById("stardate");
 
   var curDate = new Date();
 
+  // Star Trek famously premiered on Thursday, September 8, 1966, at 8:30 p.m.
+  // See http://www.startrek.com/article/what-if-the-original-star-trek-had-debuted-on-friday-nights
   if (!gSDBase)
-    gSDBase = new Date("September 8, 1966 20:00:00 EST");
+    gSDBase = new Date("September 8, 1966 20:30:00 EST");
 
   var sdateval = (curDate - gSDBase) / (86400 * 365.2425);
   gStardate.textContent = sdateval.toFixed(1);
@@ -60,7 +85,7 @@ function toggleFullscreen() {
   }
 }
 
-function switchModule(modname) {
+function switchModule(aModname) {
   gSounds.keyaction.play();
   var sections = document.getElementsByTagName('section');
   for (var i = 0; i <= sections.length - 1; i++) {
@@ -74,10 +99,13 @@ function switchModule(modname) {
     navs[i].classList.remove("active");
   }
 
-  document.getElementById("nav" + modname).classList.add("active");
-  document.getElementById("sect" + modname).classList.add("active");
+  var navItem = document.getElementById("nav" + aModname);
+  navItem.classList.add("active");
+  document.getElementById("sect" + aModname).classList.add("active");
+  document.getElementById("mainHeader").textContent =
+      (aModname == "Other") ? "Web Tricorder" : navItem.textContent;
 
-  window["gMod" + modname].activate();
+  window["gMod" + aModname].activate();
 }
 
 var gModPos = {
@@ -87,21 +115,28 @@ var gModPos = {
       document.getElementById("posunavail").style.display = "none";
       document.getElementById("posavail").style.display = "block";
       this.watchID = navigator.geolocation.watchPosition(
-        function(position) {
-           document.getElementById("posLat").textContent = position.coords.latitude;
-           document.getElementById("posLong").textContent = position.coords.longitude;
-           document.getElementById("posAlt").textContent = position.coords.altitude;
-           document.getElementById("posAcc").textContent = position.coords.accuracy;
-           document.getElementById("posAltAcc").textContent = position.coords.altitudeAccuracy;
-           document.getElementById("posHead").textContent = position.coords.heading || "---";
-           document.getElementById("posSpd").textContent = position.coords.speed || "---";
-           var locTime = new Date(position.timestamp);
+        function(aPosition) {
+           document.getElementById("posLat").textContent =
+               aPosition.coords.latitude + "°";
+           document.getElementById("posLong").textContent =
+               aPosition.coords.longitude + "°";
+           document.getElementById("posAlt").textContent =
+               aPosition.coords.altitude.toFixed(0) + " m";
+           document.getElementById("posAcc").textContent =
+               aPosition.coords.accuracy.toFixed(0) + " m";
+           document.getElementById("posAltAcc").textContent =
+               aPosition.coords.altitudeAccuracy.toFixed(0) + " m";
+           document.getElementById("posHead").textContent =
+               aPosition.coords.heading ? aPosition.coords.heading.toFixed(0) + "°" : "---";
+           document.getElementById("posSpd").textContent =
+               aPosition.coords.speed ? aPosition.coords.speed.toFixed(1) + " m/s" : "---";
+           var locTime = new Date(aPosition.timestamp);
            document.getElementById("posTime").textContent = locTime.toISOString();
         },
-        function(error) {
+        function(aError) {
           // See https://developer.mozilla.org/en/Using_geolocation#Handling_errors
-          if (error.message) {
-            document.getElementById("posLat").textContent = error.message;
+          if (aError.message) {
+            document.getElementById("posLat").textContent = aError.message;
             document.getElementById("posLong").textContent = "...";
             document.getElementById("posAlt").textContent = "...";
             document.getElementById("posAcc").textContent = "...";
@@ -109,13 +144,15 @@ var gModPos = {
             document.getElementById("posHead").textContent = "...";
             document.getElementById("posSpd").textContent = "...";
             document.getElementById("posTime").textContent = "...";
+            setTimeout(function() { gModPos.deactivate(); }, 5000);
           }
           else {
             document.getElementById("posunavail").style.display = "block";
             document.getElementById("posavail").style.display = "none";
           }
+          gSounds.scan.pause();
         },
-        {enableHighAccuracy: true}
+        {enableHighAccuracy: true, maximumAge: 10000, timeout: 60000}
       );
     }
     else {
@@ -166,23 +203,245 @@ var gModGrav = {
     document.getElementById("gravAlpha").textContent = "...";
     document.getElementById("gravBeta").textContent = "...";
     document.getElementById("gravGamma").textContent = "...";
+    document.getElementById("gravTotal").textContent = "...";
     document.getElementById("gravX").textContent = "...";
     document.getElementById("gravY").textContent = "...";
     document.getElementById("gravZ").textContent = "...";
     //document.getElementById("gravRot").textContent = "...";
   },
-  orientEvent: function(orientData) {
-    //document.getElementById("gravAbs").textContent = orientData.absolute;
-    document.getElementById("gravAlpha").textContent = orientData.alpha.toFixed(1) + "°";
-    document.getElementById("gravBeta").textContent = orientData.beta.toFixed(1) + "°";
-    document.getElementById("gravGamma").textContent = orientData.gamma.toFixed(1) + "°";
+  orientEvent: function(aOrientData) {
+    //document.getElementById("gravAbs").textContent = aOrientData.absolute;
+    document.getElementById("gravAlpha").textContent =
+        aOrientData.alpha.toFixed(1) + "°";
+    document.getElementById("gravBeta").textContent =
+        aOrientData.beta.toFixed(1) + "°";
+    document.getElementById("gravGamma").textContent =
+        aOrientData.gamma.toFixed(1) + "°";
+  },
+  motionEvent: function(aEvent) {
+    var gravTotal =
+        Math.sqrt(Math.pow(aEvent.accelerationIncludingGravity.x, 2) +
+                  Math.pow(aEvent.accelerationIncludingGravity.y, 2) +
+                  Math.pow(aEvent.accelerationIncludingGravity.z, 2));
+    document.getElementById("gravTotal").textContent =
+        gravTotal.toFixed(2) + " m/s²";
+    document.getElementById("gravX").textContent =
+        aEvent.accelerationIncludingGravity.x.toFixed(2) + " m/s²";
+    document.getElementById("gravY").textContent =
+        aEvent.accelerationIncludingGravity.y.toFixed(2) + " m/s²";
+    document.getElementById("gravZ").textContent =
+        aEvent.accelerationIncludingGravity.z.toFixed(2) + " m/s²";
+    //document.getElementById("gravRot").textContent = aEvent.rotationRate;
+  },
+}
+
+var gModSound = {
+  activate: function() {
+    //gSounds.scan.play();
+    if (navigator.getUserMedia &&
+        (window.AudioContext || window.webkitAudioContext)) {
+      document.getElementById("soundunavail").style.display = "none";
+      document.getElementById("soundavail").style.display = "block";
+      navigator.getUserMedia({ audio: true },
+         function(aLocalMediaStream) {
+           gModSound.mAudio.stream = aLocalMediaStream;
+           gModSound.mAudio.context = new (window.AudioContext ||
+                                           window.webkitAudioContext)();
+           gModSound.mAudio.input =
+               gModSound.mAudio.context.createMediaStreamSource(gModSound.mAudio.stream);
+           // Could put a filter in between like in http://webaudioapi.com/samples/microphone/
+           gModSound.mDisplay.canvas = document.getElementById("soundcanvas");
+           gModSound.mDisplay.context = gModSound.mDisplay.canvas.getContext("2d");
+           gModSound.rebuildCanvas();
+         },
+         function(aError) {
+           document.getElementById("soundunavail").style.display = "block";
+           document.getElementById("soundavail").style.display = "none";
+           console.log(aError);
+         }
+      );
+    }
+    else {
+      document.getElementById("soundunavail").style.display = "block";
+      document.getElementById("soundavail").style.display = "none";
+    }
   },
-  motionEvent: function(event) {
-    document.getElementById("gravX").textContent = event.accelerationIncludingGravity.x.toFixed(2) + " m/s²";
-    document.getElementById("gravY").textContent = event.accelerationIncludingGravity.y.toFixed(2) + " m/s²";
-    document.getElementById("gravZ").textContent = event.accelerationIncludingGravity.z.toFixed(2) + " m/s²";
-    //document.getElementById("gravRot").textContent = event.rotationRate;
+  rebuildCanvas: function() {
+    if (gModSound.mDisplay.AFRequestID) {
+      window.cancelAnimationFrame(gModSound.mDisplay.AFRequestID);
+      gModSound.mDisplay.AFRequestID = 0;
+    }
+    gModSound.mDisplay.canvas.height =
+        document.getElementById("soundavail").clientHeight - 4;
+    gModSound.mDisplay.canvas.width =
+        document.getElementById("soundavail").clientWidth;
+    gModSound.mAudio.frequencySlices = (gModSound.mDisplay.canvas.width > 512) ?
+        512 :
+        Math.pow(2, Math.floor(Math.log(gModSound.mDisplay.canvas.width) / Math.LN2));
+    //console.log("slices: " + gModSound.mAudio.frequencySlices);
+    gModSound.mAudio.analyzer = gModSound.mAudio.context.createAnalyser();
+    // Make the FFT four times as large as needed as the upper three quarters turn out to be useless.
+    gModSound.mAudio.analyzer.fftSize = gModSound.mAudio.frequencySlices * 4;
+    //console.log("FFT: " + gModSound.mAudio.analyzer.fftSize);
+    gModSound.mAudio.input.connect(gModSound.mAudio.analyzer);
+    gModSound.mDisplay.context.setTransform(1, 0, 0,
+                                            -(gModSound.mDisplay.canvas.height/256),
+                                            0, gModSound.mDisplay.canvas.height);
+    gModSound.mDisplay.active = true;
+    gModSound.mDisplay.AFRequestID =
+        window.requestAnimationFrame(gModSound.paintAnalyzerFrame);
+  },
+  mAudio: {
+    frequencySlices: 32, // Must be a multiple of 2 (see AnalyserNode.fftSize)
+  },
+  mDisplay: {
+    active: false,
+  },
+  paintAnalyzerFrame: function(aTimestamp) {
+    var data = new Uint8Array(gModSound.mAudio.frequencySlices);
+    gModSound.mAudio.analyzer.getByteFrequencyData(data);
+    gModSound.mDisplay.context.clearRect(0, 0, gModSound.mDisplay.canvas.width,
+                                         gModSound.mDisplay.canvas.height);
+    // Out of experience, only the first half of the slices are actually useful.
+    var wid = gModSound.mDisplay.canvas.width / gModSound.mAudio.frequencySlices;
+    var fill = "#9C9CFF";
+    for (var i = 0; i < gModSound.mAudio.frequencySlices; ++i) {
+      var newFill = (data[i] > 200) ? "#FF0000" :
+                                      ((data[i] > 100) ? "#FFCF00" : "#9C9CFF");
+      if (fill != newFill) {
+        gModSound.mDisplay.context.fillStyle = newFill; fill = newFill;
+      }
+      gModSound.mDisplay.context.fillRect(i*wid, 0, wid, data[i]);
+    }
+    if (gModSound.mDisplay.active)
+      gModSound.mDisplay.AFRequestID =
+          window.requestAnimationFrame(gModSound.paintAnalyzerFrame);
+  },
+  resize: function() {
+    gModSound.rebuildCanvas();
+  },
+  deactivate: function() {
+    if (gModSound.mDisplay.active) {
+      gModSound.mAudio.stream.stop();
+      gModSound.mDisplay.active = false;
+    }
+    gSounds.scan.pause();
+  },
+}
+
+var gModEnv = {
+  activate: function() {
+    gSounds.scan.play();
+    document.getElementById("envunavail").style.display = "none";
+    document.getElementById("envavail").style.display = "block";
+    window.addEventListener("devicelight", this.lightEvent, true);
+    window.addEventListener("deviceproximity", this.proxEvent, true);
+    setTimeout(function() {
+      if ((document.getElementById("envLight").textContent == "...") &&
+          (document.getElementById("envDistance").textContent == "...")) {
+        gModEnv.deactivate();
+      }
+    }, 5000);
+    try {
+      var cameras = navigator.mozCameras.getListOfCameras();
+      for (i = 0; i < cameras.length; i++) {
+        var promise = navigator.mozCameras.getCamera(cameras[i], {},
+          function(aCamera) {
+            if (aCamera.capabilities.flashModes.indexOf('torch') !== -1) {
+              gModEnv.foundFlashCamera(aCamera);
+            }
+          },
+          function(aError) { console.log("camera error: " + aError); }
+        );
+      }
+    } catch (e) {
+      // camera api not supported
+      document.getElementById("envFlashUnavail").style.display = "block";
+      document.getElementById("envFlashAvail").style.display = "none";
+    }
+  },
+  foundFlashCamera: function(aCamera) {
+    this.flashCamera = aCamera;
+    document.getElementById("envFlashOn").onclick =
+        function() { console.log("on"); gModEnv.switchFlashlight(true); };
+    document.getElementById("envFlashOff").onclick =
+        function() { console.log("off"); gModEnv.switchFlashlight(false); };
+    document.getElementById("envFlashUnavail").style.display = "none";
+    document.getElementById("envFlashAvail").style.display = "block";
+  },
+  deactivate: function() {
+    gSounds.scan.pause();
+    window.removeEventListener("devicelight", this.lightEvent, true);
+    window.removeEventListener("deviceproximity", this.proxEvent, true);
+    document.getElementById("envunavail").style.display = "block";
+    document.getElementById("envavail").style.display = "none";
+    document.getElementById("envLight").textContent = "...";
+    document.getElementById("envDistance").textContent = "...";
+  },
+  lightEvent: function(aLightData) {
+    // See http://www.w3.org/TR/ambient-light/
+    document.getElementById("envLight").textContent = aLightData.value + " lux";
+  },
+  proxEvent: function(aProxData) {
+    // See http://www.w3.org/TR/2012/WD-proximity-20120712/
+    if (aProxData.value >= aProxData.max) {
+      document.getElementById("envDistance").textContent =
+          "(maximum, >= " + aProxData.value + " cm)";
+    }
+    else if (aProxData.value <= aProxData.min) {
+      document.getElementById("envDistance").textContent =
+          "(minimum, <= " + aProxData.value + " cm)";
+    }
+    else {
+      document.getElementById("envDistance").textContent =
+          aProxData.value + " cm";
+    }
+  },
+  flashCamera: null,
+  switchFlashlight: function(aEnabled) {
+    if (this.flashCamera) {
+      this.flashCamera.flashMode = aEnabled ? 'torch' : 'off';
+      document.getElementById("envFlashOn").disabled = aEnabled;
+      document.getElementById("envFlashOff").disabled = !aEnabled;
+    }
+  }
+}
+
+var gModDev = {
+  activate: function() {
+    gSounds.scan.play();
+    this.batteryTimer =
+        setInterval(function () { gModDev.updateBattery(); }, 100);
+  },
+  deactivate: function() {
+    clearTimeout(this.batteryTimer);
+    gSounds.scan.pause();
+  },
+  updateBattery: function() {
+    document.getElementById("devBattLevel").textContent =
+        (navigator.battery.level * 100).toFixed(1) + "%";
+    if (navigator.battery.charging) {
+      if (navigator.battery.chargingTime == 0 ||
+          navigator.battery.chargingTime == Infinity) {
+        document.getElementById("devBattStatus").textContent = "charging";
+      }
+      else {
+        document.getElementById("devBattStatus").textContent =
+            "charging, " + navigator.battery.chargingTime + "s remaining";
+      }
+    }
+    else {
+      if (navigator.battery.dischargingTime == 0 ||
+          navigator.battery.dischargingTime == Infinity) {
+        document.getElementById("devBattStatus").textContent = "discharging";
+      }
+      else {
+        document.getElementById("devBattStatus").textContent =
+            navigator.battery.dischargingTime + "s usage remaining";
+      }
+    }
   },
+  batteryTimer: null,
 }
 
 var gModOther = {