Merge branch 'master' of linz:/srv/git/tricorder

[tricorder.git] / js / tricorder.js

diff --git a/js/tricorder.js b/js/tricorder.js
index de33ae3a630e2c2eed70a95e946c314aea24b8fd..3887a533936ad8b028c5d329f47490dd5b4fb66c 100644 (file)
--- a/js/tricorder.js
+++ b/js/tricorder.js
@@ -40,6 +40,10 @@ window.onresize = function() {
 }
 
 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");
 
@@ -305,6 +309,72 @@ var gModSound = {
   },
 }
 
+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 {
+      for (var cameraId of window.navigator.mozCameras.getListOfCameras()) {
+        window.navigator.mozCameras.getCamera({camera: cameraId}, function(aCamera) {
+            if (aCamera.capabilities.flashModes.indexOf('torch') !== -1) {
+              this.flashCamera = aCamera;
+            }
+        });
+      }
+      if (this.flashCamera) {
+        document.getElementById("envFlashOn").onclick = gModEnv.switchFlashlight(true);
+        document.getElementById("envFlashOff").onclick = gModEnv.switchFlashlight(false);
+        document.getElementById("envFlashUnavail").style.display = "none";
+        document.getElementById("envFlashAvail").style.display = "block";
+      }
+    } catch (e) {
+      // camera api not supported
+      document.getElementById("envFlashUnavail").style.display = "block";
+      document.getElementById("envFlashAvail").style.display = "none";
+    }
+  },
+  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(lightData) {
+    // See http://www.w3.org/TR/ambient-light/
+    document.getElementById("envLight").textContent = lightData.value + " lux";
+  },
+  proxEvent: function(proxData) {
+    // See http://www.w3.org/TR/2012/WD-proximity-20120712/
+    if (proxData.value >= proxData.max) {
+      document.getElementById("envDistance").textContent = "(maximum, >= " + proxData.value + " cm)";
+    }
+    else if (proxData.value <= proxData.min) {
+      document.getElementById("envDistance").textContent = "(minimum, <= " + proxData.value + " cm)";
+    }
+    else {
+      document.getElementById("envDistance").textContent = proxData.value + " cm";
+    }
+  },
+  flashCamera: null,
+  switchFlashlight: function(aEnabled) {
+    if (this.flashCamera) {
+      this.flashCamera.flashMode = aEnabled ? 'torch' : 'off';
+    }
+  }
+}
+
 var gModDev = {
   activate: function() {
     gSounds.scan.play();