Bug 697641, part 1: Export Android Sensor Manager API to Gecko. r=cjones

embedding/android/GeckoAppShell.java

@@ -679,6 +679,42 @@ public class GeckoAppShell
             });
     }
 
+    /*
+     * Keep these values consistent with |SensorType| in Hal.h
+     */
+    private static final int SENSOR_ORIENTATION = 1;
+    private static final int SENSOR_ACCELERATION = 2;
+    private static final int SENSOR_PROXIMITY = 3;
+
+    private static Sensor gProximitySensor = null;
+
+    public static void enableSensor(int aSensortype) {
+        SensorManager sm = (SensorManager)
+            GeckoApp.surfaceView.getContext().
+            getSystemService(Context.SENSOR_SERVICE);
+
+        switch(aSensortype) {
+        case SENSOR_PROXIMITY:
+            if(gProximitySensor == null)
+                gProximitySensor = sm.getDefaultSensor(Sensor.TYPE_PROXIMITY);
+            sm.registerListener(GeckoApp.surfaceView, gProximitySensor,
+                                SensorManager.SENSOR_DELAY_GAME);
+            break;
+        }
+    }
+
+    public static void disableSensor(int aSensortype) {
+        SensorManager sm = (SensorManager)
+            GeckoApp.surfaceView.getContext().
+            getSystemService(Context.SENSOR_SERVICE);
+
+        switch(aSensortype) {
+        case SENSOR_PROXIMITY:
+            sm.unregisterListener(GeckoApp.surfaceView, gProximitySensor);
+            break;
+        }
+    }
+
     public static void moveTaskToBack() {
         GeckoApp.mAppContext.moveTaskToBack(true);
     }

widget/android/AndroidBridge.cpp

@@ -107,6 +107,12 @@ AndroidBridge::Init(JNIEnv *jEnv,
 
     jEnableDeviceMotion = (jmethodID) jEnv->GetStaticMethodID(jGeckoAppShellClass, "enableDeviceMotion", "(Z)V");
     jEnableLocation = (jmethodID) jEnv->GetStaticMethodID(jGeckoAppShellClass, "enableLocation", "(Z)V");
+    jEnableSensor =
+        (jmethodID) jEnv->GetStaticMethodID(jGeckoAppShellClass,
+                                            "enableSensor", "(I)V");
+    jDisableSensor =
+        (jmethodID) jEnv->GetStaticMethodID(jGeckoAppShellClass,
+                                            "disableSensor", "(I)V");
     jReturnIMEQueryResult = (jmethodID) jEnv->GetStaticMethodID(jGeckoAppShellClass, "returnIMEQueryResult", "(Ljava/lang/String;II)V");
     jScheduleRestart = (jmethodID) jEnv->GetStaticMethodID(jGeckoAppShellClass, "scheduleRestart", "()V");
     jNotifyXreExit = (jmethodID) jEnv->GetStaticMethodID(jGeckoAppShellClass, "onXreExit", "()V");
@@ -315,6 +321,20 @@ AndroidBridge::EnableLocation(bool aEnable)
     env->CallStaticVoidMethod(mGeckoAppShellClass, jEnableLocation, aEnable);
 }
 
+void
+AndroidBridge::EnableSensor(int aSensorType) {
+    ALOG_BRIDGE("AndroidBridge::EnableSensor");
+    mJNIEnv->CallStaticVoidMethod(mGeckoAppShellClass, jEnableSensor,
+                                  aSensorType);
+}
+
+void
+AndroidBridge::DisableSensor(int aSensorType) {
+    ALOG_BRIDGE("AndroidBridge::DisableSensor");
+    mJNIEnv->CallStaticVoidMethod(mGeckoAppShellClass, jDisableSensor,
+                                  aSensorType);
+}
+
 void
 AndroidBridge::ReturnIMEQueryResult(const PRUnichar *aResult, PRUint32 aLen,
                                     int aSelStart, int aSelLen)

widget/android/AndroidBridge.h

@@ -162,6 +162,10 @@ public:
 
     void EnableLocation(bool aEnable);
 
+    void EnableSensor(int aSensorType);
+
+    void DisableSensor(int aSensorType);
+
     void ReturnIMEQueryResult(const PRUnichar *aResult, PRUint32 aLen, int aSelStart, int aSelLen);
 
     void NotifyXreExit();
@@ -419,6 +423,8 @@ protected:
     jmethodID jAcknowledgeEventSync;
     jmethodID jEnableDeviceMotion;
     jmethodID jEnableLocation;
+    jmethodID jEnableSensor;
+    jmethodID jDisableSensor;
     jmethodID jReturnIMEQueryResult;
     jmethodID jNotifyAppShellReady;
     jmethodID jNotifyXreExit;