X-Git-Url: https://git-public.kairo.at/?p=tricorder.git;a=blobdiff_plain;f=js%2Ftricorder.js;h=de33ae3a630e2c2eed70a95e946c314aea24b8fd;hp=093f5171a79851e73569993fd587ad7b85ff8d81;hb=bdfbab86ab3c17a41ab88de60a69427738661392;hpb=1b0ec1c4bdcbf99873caf5ebe7035d13a8b2d6fc

diff --git a/js/tricorder.js b/js/tricorder.js
index 093f517..de33ae3 100644
--- a/js/tricorder.js
+++ b/js/tricorder.js
@@ -5,6 +5,8 @@
 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 +16,39 @@ 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.onresize = function() {
+  if (document.getElementById("sectSound").classList.contains("active")) {
+    gModSound.resize();
+  }
+}
+
 function updateStardate() {
   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 +81,7 @@ 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++) {
@@ -74,13 +95,13 @@ function switchModule(modname) {
     navs[i].classList.remove("active");
   }
 
-  var navItem = document.getElementById("nav" + modname);
+  var navItem = document.getElementById("nav" + aModname);
   navItem.classList.add("active");
-  document.getElementById("sect" + modname).classList.add("active");
+  document.getElementById("sect" + aModname).classList.add("active");
   document.getElementById("mainHeader").textContent =
-      (modname == "Other") ? "Web Tricorder" : navItem.textContent;
+      (aModname == "Other") ? "Web Tricorder" : navItem.textContent;
 
-  window["gMod" + modname].activate();
+  window["gMod" + aModname].activate();
 }
 
 var gModPos = {
@@ -119,13 +140,15 @@ 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 {
@@ -201,6 +224,124 @@ var gModGrav = {
   },
 }
 
+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(err) {
+           document.getElementById("soundunavail").style.display = "block";
+           document.getElementById("soundavail").style.display = "none";
+           console.log(err);
+         }
+      );
+    }
+    else {
+      document.getElementById("soundunavail").style.display = "block";
+      document.getElementById("soundavail").style.display = "none";
+    }
+  },
+  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 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 = {
   activate: function() {
     //gSounds.scan.play();