hammerhead: doze: Hello doze!

from hammerheadcaf at e6dffe2b

Change-Id: I008a35d2d4ad85167f2201af1ace34a8c9db6e0f

12 files changed, 735 insertions, 0 deletions

diff --git a/device.mk b/device.mk
index f080cf8..28143a9 100644
--- a/device.mk
+++ b/device.mk
@@ -171,6 +171,10 @@ PRODUCT_PACKAGES += \
 PRODUCT_PACKAGES += \
     power.msm8974
 
+# Doze mode
+PRODUCT_PACKAGES += \
+    HammerheadDoze
+
 # Gello
 PRODUCT_PACKAGES += \
     Gello
diff --git a/doze/Android.mk b/doze/Android.mk
new file mode 100644
index 0000000..2bf2102
--- /dev/null
+++ b/doze/Android.mk
@@ -0,0 +1,19 @@
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_SRC_FILES := $(call all-java-files-under, src)
+
+LOCAL_PACKAGE_NAME := HammerheadDoze
+LOCAL_CERTIFICATE := platform
+LOCAL_PRIVILEGED_MODULE := true
+
+LOCAL_PROGUARD_FLAG_FILES := proguard.flags
+
+LOCAL_RESOURCE_DIR := $(LOCAL_PATH)/res \
+    $(LOCAL_PATH)/../../../../packages/resources/devicesettings/res
+
+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..0f3392f
--- /dev/null
+++ b/doze/AndroidManifest.xml
@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.cyanogenmod.settings.doze"
+    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.WAKE_LOCK" />
+
+    <protected-broadcast android:name="com.android.systemui.doze.pulse" />
+
+    <uses-sdk
+        android:minSdkVersion="21"
+        android:targetSdkVersion="21"/>
+
+    <application
+        android:label="HammerheadDoze"
+        android:persistent="true">
+
+        <receiver android:name="com.cyanogenmod.settings.doze.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.doze.DozeService"
+                 android:permission="HammerheadDozeService">
+        </service>
+
+        <activity
+            android:name=".DozeSettings"
+            android:label="@string/ambient_display_title"
+            android:theme="@android:style/Theme.Material.Settings">
+            <intent-filter>
+                <action android:name="com.android.settings.action.EXTRA_SETTINGS" />
+            </intent-filter>
+            <meta-data
+                android:name="com.android.settings.category"
+                android:value="com.android.settings.category.device" />
+            <meta-data
+                android:name="com.android.settings.icon"
+                android:resource="@drawable/ic_settings_doze" />
+        </activity>
+
+    </application>
+</manifest>
diff --git a/doze/proguard.flags b/doze/proguard.flags
new file mode 100644
index 0000000..a21e62f
--- /dev/null
+++ b/doze/proguard.flags
@@ -0,0 +1,3 @@
+-keep class com.cyanogenmod.settings.doze.* {
+  *;
+}
diff --git a/doze/res/drawable/ic_settings_doze.xml b/doze/res/drawable/ic_settings_doze.xml
new file mode 100644
index 0000000..8386024
--- /dev/null
+++ b/doze/res/drawable/ic_settings_doze.xml
@@ -0,0 +1,51 @@
+<!--
+Copyright (C) 2014 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.
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="64dp"
+        android:height="64dp"
+        android:viewportWidth="64"
+        android:viewportHeight="64">
+
+    <group
+            android:translateY="-988.583">
+        <path
+                android:fillColor="@android:color/white"
+                android:pathData="M15.0133
+1051.24c-1.3615-0.2479-2.37425-1.2789-2.57968-2.6262-0.06554-0.4298-0.06571-55.8484-0.00018-56.28
+0.09875-0.65024 0.367851-1.20544 0.812983-1.6773 0.402211-0.42637
+0.920053-0.7356 1.49909-0.8952l0.299302-0.0825h16.845 16.845l0.291174
+0.0804c1.24697 0.34447 2.13039 1.32473 2.32019 2.57456 0.06515 0.42898 0.06541
+55.8484 0.0003 56.28-0.188067 1.2461-1.07608 2.2305-2.32306 2.5752l-0.288567
+0.08h-16.755c-13.5267 0-16.7958
+0-16.9665-0.034zm29.8065-31.1862v-19.23h-12.99-12.99v19.23 19.23h12.99
+12.99v-19.23zm-13.459
+11.687c-1.03547-0.2354-1.77837-1.1208-1.83292-2.1845l-0.01654-0.3225h1.87175c1.02946
+0 2.10645 0.01 2.3933 0.02l0.521553 0.02-0.01945 0.253c-0.02847 0.3705-0.09559
+0.6134-0.267159 0.9672-0.135477 0.2794-0.18522 0.3474-0.439626 0.6013-0.31197
+0.3114-0.571617 0.4707-0.976866 0.5995-0.269196 0.085-0.949163 0.111-1.23404
+0.046zm-9.04096-4.1842v-0.6872l1.10534-1.0831 1.10534-1.0831
+0.02483-1.2072c0.01366-0.664 0.02781-2.213 0.03145-3.4422 0.007-2.3727
+0.01776-2.5909 0.162279-3.3 0.234013-1.1483 0.861931-2.2993 1.7263-3.1643
+0.762874-0.7634 1.91951-1.4813 3.00204-1.8633 0.262572-0.093 0.512691-0.1813
+0.555819-0.1969l0.07842-0.029 0.01577-0.426c0.01284-0.3469 0.03018-0.4706
+0.09332-0.666 0.197394-0.6109 0.642609-1.0525 1.21018-1.2004 0.365688-0.095
+0.860153-0.043 1.2089 0.1282 0.234414 0.1149 0.589851 0.4783 0.725931 0.7422
+0.171483 0.3325 0.207933 0.491 0.225975 0.9825 0.01148 0.3126 0.02671 0.4425
+0.0519 0.4425 0.01961 0 0.2844 0.088 0.588423 0.1954 2.74734 0.9715 4.21726
+2.7794 4.71985 5.805 0.171696 1.0336 0.211308 1.7926 0.259098 4.9646l0.03345
+2.22 1.10911 1.095 1.1091 1.095-0.0014 0.6825-0.0014 0.6825h-9.57-9.57v-0.6872z" />
+    </group>
+</vector>
diff --git a/doze/res/xml/doze_settings.xml b/doze/res/xml/doze_settings.xml
new file mode 100644
index 0000000..c3e3bd8
--- /dev/null
+++ b/doze/res/xml/doze_settings.xml
@@ -0,0 +1,58 @@
+<?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="ambient_display"
+        android:defaultValue="true"
+        android:title="@string/ambient_display_enable_title"
+        android:summary="@string/ambient_display_enable_summary" />
+
+    <PreferenceCategory
+        android:key="tilt_sensor"
+        android:title="@string/tilt_sensor_title" >
+
+        <SwitchPreference
+            android:key="pick_up"
+            android:defaultValue="false"
+            android:title="@string/pick_up_gesture_title"
+            android:summary="@string/pick_up_gesture_summary"
+            android:dependency="ambient_display" />
+
+    </PreferenceCategory>
+
+    <PreferenceCategory
+        android:key="priximity_sensor"
+        android:title="@string/proximity_sensor_title" >
+
+        <SwitchPreference
+            android:key="gesture_hand_wave"
+            android:defaultValue="false"
+            android:title="@string/hand_wave_gesture_title"
+            android:summary="@string/hand_wave_gesture_summary"
+            android:dependency="ambient_display" />
+
+        <SwitchPreference
+            android:key="gesture_pocket"
+            android:defaultValue="false"
+            android:title="@string/pocket_gesture_title"
+            android:summary="@string/pocket_gesture_summary"
+            android:dependency="ambient_display" />
+
+    </PreferenceCategory>
+
+</PreferenceScreen>
diff --git a/doze/src/com/cyanogenmod/settings/doze/BootCompletedReceiver.java b/doze/src/com/cyanogenmod/settings/doze/BootCompletedReceiver.java
new file mode 100644
index 0000000..2b3c35a
--- /dev/null
+++ b/doze/src/com/cyanogenmod/settings/doze/BootCompletedReceiver.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2016 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.doze;
+
+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 = "HammerheadDoze";
+
+    @Override
+    public void onReceive(final Context context, Intent intent) {
+        if (Utils.isDozeEnabled(context) && Utils.sensorsEnabled(context)) {
+            if (DEBUG) Log.d(TAG, "Starting service");
+            Utils.startService(context);
+        }
+    }
+
+}
diff --git a/doze/src/com/cyanogenmod/settings/doze/DozeService.java b/doze/src/com/cyanogenmod/settings/doze/DozeService.java
new file mode 100644
index 0000000..fda63a4
--- /dev/null
+++ b/doze/src/com/cyanogenmod/settings/doze/DozeService.java
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2016 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.doze;
+
+import android.app.Service;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.os.IBinder;
+import android.util.Log;
+
+public class DozeService extends Service {
+    private static final String TAG = "DozeService";
+    private static final boolean DEBUG = false;
+
+    private ProximitySensor mProximitySensor;
+    private TiltSensor mTiltSensor;
+
+    @Override
+    public void onCreate() {
+        if (DEBUG) Log.d(TAG, "Creating service");
+        mProximitySensor = new ProximitySensor(this);
+        mTiltSensor = new TiltSensor(this);
+
+        IntentFilter screenStateFilter = new IntentFilter(Intent.ACTION_SCREEN_ON);
+        screenStateFilter.addAction(Intent.ACTION_SCREEN_OFF);
+        registerReceiver(mScreenStateReceiver, screenStateFilter);
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        if (DEBUG) Log.d(TAG, "Starting service");
+        return START_STICKY;
+    }
+
+    @Override
+    public void onDestroy() {
+        if (DEBUG) Log.d(TAG, "Destroying service");
+        super.onDestroy();
+        this.unregisterReceiver(mScreenStateReceiver);
+        mProximitySensor.disable();
+        mTiltSensor.disable();
+    }
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        return null;
+    }
+
+    private void onDisplayOn() {
+        if (DEBUG) Log.d(TAG, "Display on");
+        if (Utils.pickUpEnabled(this)) {
+            mTiltSensor.disable();
+        }
+        if (Utils.handwaveGestureEnabled(this) ||
+                Utils.pocketGestureEnabled(this)) {
+            mProximitySensor.disable();
+        }
+    }
+
+    private void onDisplayOff() {
+        if (DEBUG) Log.d(TAG, "Display off");
+        if (Utils.pickUpEnabled(this)) {
+            mTiltSensor.enable();
+        }
+        if (Utils.handwaveGestureEnabled(this) ||
+                Utils.pocketGestureEnabled(this)) {
+            mProximitySensor.enable();
+        }
+    }
+
+    private BroadcastReceiver mScreenStateReceiver = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            if (intent.getAction().equals(Intent.ACTION_SCREEN_ON)) {
+                onDisplayOn();
+            } else if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) {
+                onDisplayOff();
+            }
+        }
+    };
+}
diff --git a/doze/src/com/cyanogenmod/settings/doze/DozeSettings.java b/doze/src/com/cyanogenmod/settings/doze/DozeSettings.java
new file mode 100644
index 0000000..2d178dd
--- /dev/null
+++ b/doze/src/com/cyanogenmod/settings/doze/DozeSettings.java
@@ -0,0 +1,148 @@
+/*
+ * Copyright (C) 2016 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.doze;
+
+import android.app.ActionBar;
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.app.DialogFragment;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.preference.Preference;
+import android.preference.Preference.OnPreferenceChangeListener;
+import android.preference.PreferenceActivity;
+import android.preference.PreferenceScreen;
+import android.preference.SwitchPreference;
+import android.provider.Settings;
+import android.view.Menu;
+import android.view.MenuItem;
+
+public class DozeSettings extends PreferenceActivity implements OnPreferenceChangeListener {
+
+    private Context mContext;
+    private SharedPreferences mPreferences;
+
+    private SwitchPreference mAmbientDisplayPreference;
+    private SwitchPreference mPickUpPreference;
+    private SwitchPreference mHandwavePreference;
+    private SwitchPreference mPocketPreference;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        addPreferencesFromResource(R.xml.doze_settings);
+        mContext = getApplicationContext();
+        boolean dozeEnabled = Utils.isDozeEnabled(mContext);
+
+        // get shared preference
+        mPreferences = mContext.getSharedPreferences("doze_settings", Activity.MODE_PRIVATE);
+        if (savedInstanceState == null && !mPreferences.getBoolean("first_help_shown", false)) {
+            showHelp();
+        }
+
+        mAmbientDisplayPreference =
+            (SwitchPreference) findPreference(Utils.AMBIENT_DISPLAY_KEY);
+        // Read from DOZE_ENABLED secure setting
+        mAmbientDisplayPreference.setChecked(dozeEnabled);
+        mAmbientDisplayPreference.setOnPreferenceChangeListener(this);
+
+        mPickUpPreference =
+            (SwitchPreference) findPreference(Utils.PICK_UP_KEY);
+        mPickUpPreference.setOnPreferenceChangeListener(this);
+
+        mHandwavePreference =
+            (SwitchPreference) findPreference(Utils.GESTURE_HAND_WAVE_KEY);
+        mHandwavePreference.setOnPreferenceChangeListener(this);
+
+        mPocketPreference =
+            (SwitchPreference) findPreference(Utils.GESTURE_POCKET_KEY);
+        mPocketPreference.setOnPreferenceChangeListener(this);
+
+        final ActionBar actionBar = getActionBar();
+        actionBar.setDisplayHomeAsUpEnabled(true);
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        if (item.getItemId() == android.R.id.home) {
+            onBackPressed();
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        final String key = preference.getKey();
+        final boolean value = (Boolean) newValue;
+        if (Utils.AMBIENT_DISPLAY_KEY.equals(key)) {
+            mAmbientDisplayPreference.setChecked(value);
+            Utils.enableDoze(value, mContext);
+            return true;
+        } else if (Utils.PICK_UP_KEY.equals(key)) {
+            mPickUpPreference.setChecked(value);
+            Utils.startService(mContext);
+            return true;
+        } else if (Utils.GESTURE_HAND_WAVE_KEY.equals(key)) {
+            mHandwavePreference.setChecked(value);
+            Utils.startService(mContext);
+            return true;
+        } else if (Utils.GESTURE_POCKET_KEY.equals(key)) {
+            mPocketPreference.setChecked(value);
+            Utils.startService(mContext);
+            return true;
+        }
+        return false;
+    }
+
+    public static class HelpDialogFragment extends DialogFragment {
+        @Override
+        public Dialog onCreateDialog(Bundle savedInstanceState) {
+            return new AlertDialog.Builder(getActivity())
+                    .setTitle(R.string.doze_settings_help_title)
+                    .setMessage(R.string.doze_settings_help_text)
+                    .setNegativeButton(R.string.dialog_ok, new DialogInterface.OnClickListener() {
+                        @Override
+                        public void onClick(DialogInterface dialog, int which) {
+                            dialog.cancel();
+                        }
+                    })
+                    .create();
+        }
+
+        @Override
+        public void onCancel(DialogInterface dialog) {
+            getActivity().getSharedPreferences("doze_settings", Activity.MODE_PRIVATE)
+                    .edit()
+                    .putBoolean("first_help_shown", true)
+                    .commit();
+        }
+    }
+
+    private void showHelp() {
+        HelpDialogFragment fragment = new HelpDialogFragment();
+        fragment.show(getFragmentManager(), "help_dialog");
+    }
+}
diff --git a/doze/src/com/cyanogenmod/settings/doze/ProximitySensor.java b/doze/src/com/cyanogenmod/settings/doze/ProximitySensor.java
new file mode 100644
index 0000000..0f62b11
--- /dev/null
+++ b/doze/src/com/cyanogenmod/settings/doze/ProximitySensor.java
@@ -0,0 +1,91 @@
+/*
+ * 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.doze;
+
+import android.content.Context;
+import android.hardware.Sensor;
+import android.hardware.SensorEvent;
+import android.hardware.SensorEventListener;
+import android.hardware.SensorManager;
+import android.util.Log;
+
+public class ProximitySensor implements SensorEventListener {
+
+    private static final boolean DEBUG = false;
+    private static final String TAG = "ProximitySensor";
+
+    private static final int POCKET_DELTA_NS = 1000 * 1000 * 1000;
+
+    private SensorManager mSensorManager;
+    private Sensor mSensor;
+    private Context mContext;
+
+    private boolean mSawNear = false;
+    private long mInPocketTime = 0;
+
+    public ProximitySensor(Context context) {
+        mContext = context;
+        mSensorManager = (SensorManager)
+                mContext.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)) {
+                Utils.launchDozePulse(mContext);
+            }
+        } else {
+            mInPocketTime = event.timestamp;
+        }
+        mSawNear = isNear;
+    }
+
+    private boolean shouldPulse(long timestamp) {
+        long delta = timestamp - mInPocketTime;
+
+        if (Utils.handwaveGestureEnabled(mContext)
+                    && Utils.pocketGestureEnabled(mContext)) {
+            return true;
+        } else if (Utils.handwaveGestureEnabled(mContext)
+                    && !Utils.pocketGestureEnabled(mContext)) {
+            return delta < POCKET_DELTA_NS;
+        } else if (!Utils.handwaveGestureEnabled(mContext)
+                    && Utils.pocketGestureEnabled(mContext)) {
+            return delta >= POCKET_DELTA_NS;
+        }
+        return false;
+    }
+
+    @Override
+    public void onAccuracyChanged(Sensor sensor, int accuracy) {
+        /* Empty */
+    }
+
+    protected void enable() {
+        if (DEBUG) Log.d(TAG, "Enabling");
+        mSensorManager.registerListener(this, mSensor,
+                SensorManager.SENSOR_DELAY_NORMAL);
+    }
+
+    protected void disable() {
+        if (DEBUG) Log.d(TAG, "Disabling");
+        mSensorManager.unregisterListener(this, mSensor);
+    }
+}
diff --git a/doze/src/com/cyanogenmod/settings/doze/TiltSensor.java b/doze/src/com/cyanogenmod/settings/doze/TiltSensor.java
new file mode 100644
index 0000000..e5de942
--- /dev/null
+++ b/doze/src/com/cyanogenmod/settings/doze/TiltSensor.java
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2016 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.doze;
+
+import android.content.Context;
+import android.hardware.Sensor;
+import android.hardware.SensorEvent;
+import android.hardware.SensorEventListener;
+import android.hardware.SensorManager;
+import android.os.PowerManager;
+import android.os.PowerManager.WakeLock;
+import android.os.SystemClock;
+import android.util.Log;
+
+public class TiltSensor implements SensorEventListener {
+
+    private static final boolean DEBUG = false;
+    private static final String TAG = "TiltSensor";
+
+    private static final int SENSOR_WAKELOCK_DURATION = 200;
+    private static final int BATCH_LATENCY_IN_MS = 100;
+    private static final int MIN_PULSE_INTERVAL_MS = 2500;
+
+    private PowerManager mPowerManager;
+    private SensorManager mSensorManager;
+    private Sensor mSensor;
+    private WakeLock mSensorWakeLock;
+    private Context mContext;
+
+    private long mEntryTimestamp;
+
+    public TiltSensor(Context context) {
+        mContext = context;
+        mPowerManager = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);
+        mSensorManager = (SensorManager) mContext.getSystemService(Context.SENSOR_SERVICE);
+        mSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_TILT_DETECTOR);
+        mSensorWakeLock = mPowerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
+                "SensorWakeLock");
+    }
+
+    @Override
+    public void onSensorChanged(SensorEvent event) {
+        if (DEBUG) Log.d(TAG, "Got sensor event: " + event.values[0]);
+
+        long delta = SystemClock.elapsedRealtime() - mEntryTimestamp;
+        if (delta < MIN_PULSE_INTERVAL_MS) {
+            return;
+        } else {
+            mEntryTimestamp = SystemClock.elapsedRealtime();
+        }
+
+        if (event.values[0] == 1) {
+            Utils.launchDozePulse(mContext);
+        }
+    }
+
+    @Override
+    public void onAccuracyChanged(Sensor sensor, int accuracy) {
+        /* Empty */
+    }
+
+    protected void enable() {
+        if (DEBUG) Log.d(TAG, "Enabling");
+        mSensorManager.registerListener(this, mSensor,
+                SensorManager.SENSOR_DELAY_NORMAL, BATCH_LATENCY_IN_MS * 1000);
+        mEntryTimestamp = SystemClock.elapsedRealtime();
+    }
+
+    protected void disable() {
+        if (DEBUG) Log.d(TAG, "Disabling");
+        mSensorManager.unregisterListener(this, mSensor);
+    }
+}
diff --git a/doze/src/com/cyanogenmod/settings/doze/Utils.java b/doze/src/com/cyanogenmod/settings/doze/Utils.java
new file mode 100644
index 0000000..4802f5c
--- /dev/null
+++ b/doze/src/com/cyanogenmod/settings/doze/Utils.java
@@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 2016 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.doze;
+
+import android.app.ActivityManager;
+import android.app.ActivityManager.RunningServiceInfo;
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.UserHandle;
+import android.preference.PreferenceManager;
+import android.provider.Settings;
+import android.util.Log;
+
+public final class Utils {
+
+    private static final String TAG = "DozeUtils";
+    private static final boolean DEBUG = false;
+
+    private static final String DOZE_INTENT = "com.android.systemui.doze.pulse";
+
+    protected static final String AMBIENT_DISPLAY_KEY = "ambient_display";
+    protected static final String PICK_UP_KEY = "pick_up";
+    protected static final String GESTURE_HAND_WAVE_KEY = "gesture_hand_wave";
+    protected static final String GESTURE_POCKET_KEY = "gesture_pocket";
+
+    protected static void startService(Context context) {
+        if (DEBUG) Log.d(TAG, "Starting service");
+        context.startService(new Intent(context, DozeService.class));
+    }
+
+    protected static void stopService(Context context) {
+        if (DEBUG) Log.d(TAG, "Stopping service");
+        context.stopService(new Intent(context, DozeService.class));
+    }
+
+    protected static boolean isDozeEnabled(Context context) {
+        return Settings.Secure.getInt(context.getContentResolver(),
+                Settings.Secure.DOZE_ENABLED, 1) != 0;
+    }
+
+    protected static boolean enableDoze(boolean enable, Context context) {
+        boolean dozeEnabled = Settings.Secure.putInt(context.getContentResolver(),
+                Settings.Secure.DOZE_ENABLED, enable ? 1 : 0);
+        if (enable) {
+            startService(context);
+        } else {
+            stopService(context);
+        }
+        return dozeEnabled;
+    }
+
+    protected static void launchDozePulse(Context context) {
+        if (DEBUG) Log.d(TAG, "Launch doze pulse");
+        context.sendBroadcastAsUser(new Intent(DOZE_INTENT),
+                new UserHandle(UserHandle.USER_CURRENT));
+    }
+
+    protected static boolean pickUpEnabled(Context context) {
+        return PreferenceManager.getDefaultSharedPreferences(context)
+                .getBoolean(PICK_UP_KEY, false);
+    }
+
+    protected static boolean handwaveGestureEnabled(Context context) {
+        return PreferenceManager.getDefaultSharedPreferences(context)
+                .getBoolean(GESTURE_HAND_WAVE_KEY, false);
+    }
+
+    protected static boolean pocketGestureEnabled(Context context) {
+        return PreferenceManager.getDefaultSharedPreferences(context)
+                .getBoolean(GESTURE_POCKET_KEY, false);
+    }
+
+    protected static boolean sensorsEnabled(Context context) {
+        return pickUpEnabled(context) || handwaveGestureEnabled(context)
+                || pocketGestureEnabled(context);
+    }
+}