samsung: doze: Add service for using proximity sensor for wake-up

* Added custom service that uses proximity sensor in wake-up mode
  to trigger display on
* If more sensor triggers are suitable to use, they can be added
  to the service

Change-Id: Id0849fb5c17ff569d771a19cebfc579dc93dbc48

9 files changed, 387 insertions, 0 deletions

diff --git a/Android.mk b/Android.mk
index 5cc8f62..a5ad563 100644
--- a/Android.mk
+++ b/Android.mk
@@ -43,6 +43,7 @@ endif
 ifeq ($(BOARD_VENDOR),samsung)
 include $(SAM_ROOT)/AdvancedDisplay/Android.mk
 include $(SAM_ROOT)/audio/Android.mk
+include $(SAM_ROOT)/doze/Android.mk
 include $(SAM_ROOT)/dtbhtool/Android.mk
 include $(SAM_ROOT)/hidl/Android.mk
 include $(SAM_ROOT)/modemloader/Android.mk
diff --git a/doze/Android.mk b/doze/Android.mk
new file mode 100644
index 0000000..6d597c6
--- /dev/null
+++ b/doze/Android.mk
@@ -0,0 +1,16 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_SRC_FILES := $(call all-java-files-under, src)
+
+LOCAL_PACKAGE_NAME := SamsungDoze
+LOCAL_CERTIFICATE := platform
+LOCAL_PRIVILEGED_MODULE := true
+
+LOCAL_PROGUARD_FLAG_FILES := proguard.flags
+
+include $(BUILD_PACKAGE)
+
+include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/doze/AndroidManifest.xml b/doze/AndroidManifest.xml
new file mode 100644
index 0000000..804b80d
--- /dev/null
+++ b/doze/AndroidManifest.xml
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.cyanogenmod.settings.device"
+    android:versionCode="1"
+    android:versionName="1.0"
+    android:sharedUserId="android.uid.system">
+
+    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
+    <uses-permission android:name="android.permission.VIBRATE"/>
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
+
+    <uses-sdk
+        android:minSdkVersion="21"
+        android:targetSdkVersion="21"/>
+
+    <application
+        android:label="SamsungDoze"
+        android:persistent="true">
+
+        <receiver android:name="com.cyanogenmod.settings.device.BootCompletedReceiver">
+            <intent-filter>
+                <action android:name="android.intent.action.BOOT_COMPLETED" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+        </receiver>
+
+        <service android:name="com.cyanogenmod.settings.device.SamsungDozeService"
+                 android:permission="SamsungDozeService">
+        </service>
+
+        <activity
+            android:name=".TouchscreenGestureSettings"
+            android:label="@string/screen_gestures_panel_title"
+            android:theme="@android:style/Theme.Material.Settings">>
+            <intent-filter>
+                <action android:name="com.cyanogenmod.action.LAUNCH_TOUCHSCREEN_GESTURE_SETTINGS" />
+            </intent-filter>
+            <meta-data
+                android:name="com.android.settings.title"
+                android:resource="@string/screen_gestures_panel_title"/>
+            <meta-data
+                android:name="com.android.settings.summary"
+                android:resource="@string/screen_gestures_panel_summary"/>
+        </activity>
+
+    </application>
+</manifest>
diff --git a/doze/proguard.flags b/doze/proguard.flags
new file mode 100644
index 0000000..3bb1f2c
--- /dev/null
+++ b/doze/proguard.flags
@@ -0,0 +1,3 @@
+-keep class com.cyanogenmod.settings.device.* {
+  *;
+}
diff --git a/doze/res/values/strings.xml b/doze/res/values/strings.xml
new file mode 100644
index 0000000..2b54bfb
--- /dev/null
+++ b/doze/res/values/strings.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2015 The CyanogenMod 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.
+-->
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Gesture shortcuts -->
+    <string name="screen_gestures_panel_title">Gestures</string>
+    <string name="screen_gestures_panel_summary">Use gestures to perform actions</string>
+
+    <string name="hand_wave_gesture_title">Hand wave</string>
+    <string name="hand_wave_gesture_summary">Pulse notifications on hand wave</string>
+
+    <string name="pocket_gesture_title">Pocket</string>
+    <string name="pocket_gesture_summary">Pulse notifications on removal from pocket</string>
+
+</resources>
diff --git a/doze/res/xml/gesture_panel.xml b/doze/res/xml/gesture_panel.xml
new file mode 100644
index 0000000..29963d1
--- /dev/null
+++ b/doze/res/xml/gesture_panel.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2015 The CyanogenMod 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.
+-->
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <SwitchPreference
+        android:key="gesture_hand_wave"
+        android:defaultValue="true"
+        android:title="@string/hand_wave_gesture_title"
+        android:summary="@string/hand_wave_gesture_summary" />
+
+    <SwitchPreference
+        android:key="gesture_pocket"
+        android:defaultValue="false"
+        android:title="@string/pocket_gesture_title"
+        android:summary="@string/pocket_gesture_summary" />
+
+</PreferenceScreen>
diff --git a/doze/src/com/cyanogenmod/settings/device/BootCompletedReceiver.java b/doze/src/com/cyanogenmod/settings/device/BootCompletedReceiver.java
new file mode 100644
index 0000000..9fe615e
--- /dev/null
+++ b/doze/src/com/cyanogenmod/settings/device/BootCompletedReceiver.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2015 The CyanogenMod 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.cyanogenmod.settings.device;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.util.Log;
+
+public class BootCompletedReceiver extends BroadcastReceiver {
+
+    private static final boolean DEBUG = false;
+    private static final String TAG = "SamsungDoze";
+
+    @Override
+    public void onReceive(final Context context, Intent intent) {
+        if (DEBUG) Log.d(TAG, "Starting service");
+        context.startService(new Intent(context, SamsungDozeService.class));
+    }
+
+}
diff --git a/doze/src/com/cyanogenmod/settings/device/SamsungDozeService.java b/doze/src/com/cyanogenmod/settings/device/SamsungDozeService.java
new file mode 100644
index 0000000..0eff337
--- /dev/null
+++ b/doze/src/com/cyanogenmod/settings/device/SamsungDozeService.java
@@ -0,0 +1,190 @@
+/*
+ * Copyright (c) 2015 The CyanogenMod 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.cyanogenmod.settings.device;
+
+import android.app.Service;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.SharedPreferences;
+import android.hardware.Sensor;
+import android.hardware.SensorEvent;
+import android.hardware.SensorEventListener;
+import android.hardware.SensorManager;
+import android.os.IBinder;
+import android.os.PowerManager;
+import android.preference.PreferenceManager;
+import android.provider.Settings;
+import android.util.Log;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class SamsungDozeService extends Service {
+    private static final String TAG = "SamsungDozeService";
+    private static final boolean DEBUG = false;
+
+    private static final String DOZE_INTENT = "com.android.systemui.doze.pulse";
+
+    private static final String GESTURE_HAND_WAVE_KEY = "gesture_hand_wave";
+    private static final String GESTURE_POCKET_KEY = "gesture_pocket";
+
+    private static final int POCKET_DELTA_NS = 1000 * 1000 * 1000;
+
+    private Context mContext;
+    private SamsungProximitySensor mSensor;
+    private PowerManager mPowerManager;
+
+    private boolean mHandwaveGestureEnabled = false;
+    private boolean mPocketGestureEnabled = false;
+
+    class SamsungProximitySensor implements SensorEventListener {
+        private SensorManager mSensorManager;
+        private Sensor mSensor;
+
+        private boolean mSawNear = false;
+        private long mInPocketTime = 0;
+
+        public SamsungProximitySensor(Context context) {
+            mSensorManager = (SensorManager)context.getSystemService(Context.SENSOR_SERVICE);
+            mSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY);
+        }
+
+        @Override
+        public void onSensorChanged(SensorEvent event) {
+            boolean isNear = event.values[0] < mSensor.getMaximumRange();
+            if (mSawNear && !isNear) {
+                if (shouldPulse(event.timestamp)) {
+                    launchDozePulse();
+                }
+            } else {
+                mInPocketTime = event.timestamp;
+            }
+            mSawNear = isNear;
+        }
+
+        @Override
+        public void onAccuracyChanged(Sensor sensor, int accuracy) {
+            /* Empty */
+        }
+
+        private boolean shouldPulse(long timestamp) {
+            long delta = timestamp - mInPocketTime;
+
+            if (mHandwaveGestureEnabled && mPocketGestureEnabled) {
+                return true;
+            } else if (mHandwaveGestureEnabled && !mPocketGestureEnabled) {
+                return delta < POCKET_DELTA_NS;
+            } else if (!mHandwaveGestureEnabled && mPocketGestureEnabled) {
+                return delta >= POCKET_DELTA_NS;
+            }
+            return false;
+        }
+
+        public void enable() {
+            if (mHandwaveGestureEnabled || mPocketGestureEnabled) {
+                mSensorManager.registerListener(this, mSensor, SensorManager.SENSOR_DELAY_NORMAL);
+            }
+        }
+
+        public void disable() {
+            mSensorManager.unregisterListener(this, mSensor);
+        }
+    }
+
+    @Override
+    public void onCreate() {
+        if (DEBUG) Log.d(TAG, "SamsungDozeService Started");
+        mContext = this;
+        mPowerManager = (PowerManager)getSystemService(Context.POWER_SERVICE);
+        mSensor = new SamsungProximitySensor(mContext);
+        SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(mContext);
+        loadPreferences(sharedPrefs);
+        sharedPrefs.registerOnSharedPreferenceChangeListener(mPrefListener);
+        if (!isInteractive() && isDozeEnabled()) {
+            mSensor.enable();
+        }
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        if (DEBUG) Log.d(TAG, "Starting service");
+        IntentFilter screenStateFilter = new IntentFilter(Intent.ACTION_SCREEN_ON);
+        screenStateFilter.addAction(Intent.ACTION_SCREEN_OFF);
+        mContext.registerReceiver(mScreenStateReceiver, screenStateFilter);
+        return START_STICKY;
+    }
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        return null;
+    }
+
+    private void launchDozePulse() {
+        mContext.sendBroadcast(new Intent(DOZE_INTENT));
+    }
+
+    private boolean isInteractive() {
+        return mPowerManager.isInteractive();
+    }
+
+    private boolean isDozeEnabled() {
+        return Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.DOZE_ENABLED, 1) != 0;
+    }
+
+    private void onDisplayOn() {
+        if (DEBUG) Log.d(TAG, "Display on");
+        mSensor.disable();
+    }
+
+    private void onDisplayOff() {
+        if (DEBUG) Log.d(TAG, "Display off");
+        if (isDozeEnabled()) {
+            mSensor.enable();
+        }
+    }
+
+    private void loadPreferences(SharedPreferences sharedPreferences) {
+        mHandwaveGestureEnabled = sharedPreferences.getBoolean(GESTURE_HAND_WAVE_KEY, true);
+        mPocketGestureEnabled = sharedPreferences.getBoolean(GESTURE_POCKET_KEY, true);
+    }
+
+    private BroadcastReceiver mScreenStateReceiver = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) {
+                onDisplayOff();
+            } else if (intent.getAction().equals(Intent.ACTION_SCREEN_ON)) {
+                onDisplayOn();
+            }
+        }
+    };
+
+    private SharedPreferences.OnSharedPreferenceChangeListener mPrefListener =
+            new SharedPreferences.OnSharedPreferenceChangeListener() {
+        @Override
+        public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
+            if (GESTURE_HAND_WAVE_KEY.equals(key)) {
+                mHandwaveGestureEnabled = sharedPreferences.getBoolean(GESTURE_HAND_WAVE_KEY, true);
+            } else if (GESTURE_POCKET_KEY.equals(key)) {
+                mPocketGestureEnabled = sharedPreferences.getBoolean(key, true);
+            }
+        }
+    };
+}
diff --git a/doze/src/com/cyanogenmod/settings/device/TouchscreenGestureSettings.java b/doze/src/com/cyanogenmod/settings/device/TouchscreenGestureSettings.java
new file mode 100644
index 0000000..bb40546
--- /dev/null
+++ b/doze/src/com/cyanogenmod/settings/device/TouchscreenGestureSettings.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2015 The CyanogenMod 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.cyanogenmod.settings.device;
+
+import com.android.internal.util.cm.ScreenType;
+
+import android.os.Bundle;
+import android.preference.PreferenceActivity;
+
+public class TouchscreenGestureSettings extends PreferenceActivity {
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        addPreferencesFromResource(R.xml.gesture_panel);
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+
+        // If running on a phone, remove padding around the listview
+        if (!ScreenType.isTablet(this)) {
+            getListView().setPadding(0, 0, 0, 0);
+        }
+    }
+}