1 files changed, 85 insertions, 0 deletions
diff --git a/java/com/android/incallui/answerproximitysensor/PseudoProximityWakeLock.java b/java/com/android/incallui/answerproximitysensor/PseudoProximityWakeLock.java
new file mode 100644
index 000000000..c7844d47d
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+++ b/java/com/android/incallui/answerproximitysensor/PseudoProximityWakeLock.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.incallui.answerproximitysensor;
+
+import android.content.Context;
+import android.hardware.Sensor;
+import android.hardware.SensorEvent;
+import android.hardware.SensorEventListener;
+import android.hardware.SensorManager;
+import android.support.annotation.Nullable;
+import com.android.dialer.common.LogUtil;
+
+/**
+ * A fake PROXIMITY_SCREEN_OFF_WAKE_LOCK implemented by the app. It will use {@link
+ * PseudoScreenState} to fake a black screen when the proximity sensor is near.
+ */
+public class PseudoProximityWakeLock implements AnswerProximityWakeLock, SensorEventListener {
+
+  private final Context context;
+  private final PseudoScreenState pseudoScreenState;
+  private final Sensor proximitySensor;
+
+  @Nullable private ScreenOnListener listener;
+  private boolean isHeld;
+
+  public PseudoProximityWakeLock(Context context, PseudoScreenState pseudoScreenState) {
+    this.context = context;
+    this.pseudoScreenState = pseudoScreenState;
+    pseudoScreenState.setOn(true);
+    proximitySensor =
+        context.getSystemService(SensorManager.class).getDefaultSensor(Sensor.TYPE_PROXIMITY);
+  }
+
+  @Override
+  public void acquire() {
+    isHeld = true;
+    context
+        .getSystemService(SensorManager.class)
+        .registerListener(this, proximitySensor, SensorManager.SENSOR_DELAY_NORMAL);
+  }
+
+  @Override
+  public void release() {
+    isHeld = false;
+    context.getSystemService(SensorManager.class).unregisterListener(this);
+    pseudoScreenState.setOn(true);
+  }
+
+  @Override
+  public boolean isHeld() {
+    return isHeld;
+  }
+
+  @Override
+  public void setScreenOnListener(ScreenOnListener listener) {
+    this.listener = listener;
+  }
+
+  @Override
+  public void onSensorChanged(SensorEvent sensorEvent) {
+    boolean near = sensorEvent.values[0] < sensorEvent.sensor.getMaximumRange();
+    LogUtil.i("AnswerProximitySensor.PseudoProximityWakeLock.onSensorChanged", "near: " + near);
+    pseudoScreenState.setOn(!near);
+    if (!near && listener != null) {
+      listener.onScreenOn();
+    }
+  }
+
+  @Override
+  public void onAccuracyChanged(Sensor sensor, int i) {}
+}