Add ol.DeviceOrientation

src/ol/deviceorientation.exports

@@ -0,0 +1 @@
+@exportSymbol ol.DeviceOrientation

src/ol/deviceorientation.js

@@ -0,0 +1,104 @@
+// FIXME: tracking property (same as ol.Geolocation)
+// FIXME: event.absolute
+goog.provide('ol.DeviceOrientation');
+goog.provide('ol.DeviceOrientationProperty');
+
+goog.require('goog.events');
+goog.require('goog.math');
+goog.require('ol.Object');
+
+
+/**
+ * @enum {string}
+ */
+ol.DeviceOrientationProperty = {
+  ALPHA: 'alpha',
+  BETA: 'beta',
+  GAMMA: 'gamma'
+};
+
+
+
+/**
+ * @constructor
+ * @extends {ol.Object}
+ */
+ol.DeviceOrientation = function() {
+
+  goog.base(this);
+
+  if (ol.DeviceOrientation.SUPPORTED) {
+    goog.events.listen(window, 'deviceorientation',
+        this.orientationChange_, false, this);
+  }
+};
+goog.inherits(ol.DeviceOrientation, ol.Object);
+
+
+/**
+ * Is supported.
+ * @const
+ * @type {boolean}
+ */
+ol.DeviceOrientation.SUPPORTED = 'DeviceOrientationEvent' in window;
+
+
+/**
+ * @private
+ * @param {goog.events.BrowserEvent} browserEvent Event.
+ */
+ol.DeviceOrientation.prototype.orientationChange_ = function(browserEvent) {
+  var event = /** @type {DeviceOrientationEvent} */
+      (browserEvent.getBrowserEvent());
+  if (goog.isDefAndNotNull(event.alpha)) {
+    this.set(ol.DeviceOrientationProperty.ALPHA,
+        goog.math.toRadians(event.alpha));
+  }
+  if (goog.isDefAndNotNull(event.beta)) {
+    this.set(ol.DeviceOrientationProperty.BETA,
+        goog.math.toRadians(event.beta));
+  }
+  if (goog.isDefAndNotNull(event.gamma)) {
+    this.set(ol.DeviceOrientationProperty.GAMMA,
+        goog.math.toRadians(event.gamma));
+  }
+};
+
+
+/**
+ * @return {number|undefined} alpha.
+ */
+ol.DeviceOrientation.prototype.getAlpha = function() {
+  return /** @type {number} */ (
+      this.get(ol.DeviceOrientationProperty.ALPHA));
+};
+goog.exportProperty(
+    ol.DeviceOrientation.prototype,
+    'getAlpha',
+    ol.DeviceOrientation.prototype.getAlpha);
+
+
+/**
+ * @return {number|undefined} beta.
+ */
+ol.DeviceOrientation.prototype.getBeta = function() {
+  return /** @type {number} */ (
+      this.get(ol.DeviceOrientationProperty.BETA));
+};
+goog.exportProperty(
+    ol.DeviceOrientation.prototype,
+    'getBeta',
+    ol.DeviceOrientation.prototype.getBeta);
+
+
+/**
+ * @return {number|undefined} gamma.
+ */
+ol.DeviceOrientation.prototype.getGamma = function() {
+  return /** @type {number} */ (
+      this.get(ol.DeviceOrientationProperty.GAMMA));
+};
+goog.exportProperty(
+    ol.DeviceOrientation.prototype,
+    'getGamma',
+    ol.DeviceOrientation.prototype.getGamma);