SystemUI: port compass tile to cm-13.0

Change-Id: I4cce9c849a702947c0cf00e3e1293f89c985b9e9

6 files changed, 275 insertions, 0 deletions

diff --git a/packages/SystemUI/res/drawable/ic_qs_compass_off.xml b/packages/SystemUI/res/drawable/ic_qs_compass_off.xml
new file mode 100644
index 0000000..e1ebfec
--- /dev/null
+++ b/packages/SystemUI/res/drawable/ic_qs_compass_off.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+ * Copyright (C) 2015 The CyanogenMod 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="48"
+    android:viewportHeight="48">
+
+    <path
+        android:fillColor="#4DFFFFFF"
+        android:pathData="M42,39.2L8.8,6L6,8.8l9.8,9.8l-1.5,3.7c-0.4,1-0.4,2.2,0,3.3l7.8,19.1c0.7,1.7,3.1,1.7,3.8,0l4.6-11.3
+l8.6,8.6L42,39.2Z
+M24,28c-2.2,0-4-1.8-4-4c0-0.4,0.1-0.7,0.1-1l4.9,4.9C24.7,27.9,24.4,28,24,28z
+M33.8,25.3L19.1,10.7l3-7.4
+c0.7-1.7,3.1-1.7,3.8,0l7.8,19.1C34.1,23.3,34.1,24.4,33.8,25.3z" />
+</vector>
\ No newline at end of file
diff --git a/packages/SystemUI/res/drawable/ic_qs_compass_on.xml b/packages/SystemUI/res/drawable/ic_qs_compass_on.xml
new file mode 100644
index 0000000..f66f64c
--- /dev/null
+++ b/packages/SystemUI/res/drawable/ic_qs_compass_on.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+ * Copyright (C) 2015 The CyanogenMod 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="48dp"
+    android:height="48dp"
+    android:viewportWidth="48"
+    android:viewportHeight="48">
+
+    <path
+        android:fillColor="#FFFFFF"
+        android:pathData="M25.9,3.3l7.8,19.1c0.4,1,0.4,2.2,0,3.3l-7.8,19.1c-0.7,1.7-3.1,1.7-3.8,0l-7.8-19.1c-0.4-1-0.4-2.2,0-3.3
+l7.8-19.1C22.8,1.6,25.2,1.6,25.9,3.3Z
+M24,20c-2.2,0-4,1.8-4,4s1.8,4,4,4s4-1.8,4-4S26.2,20,24,20z
+M26,14v-4c0-1.1-0.9-2-2-2 s-2,0.9-2,2v4c0,1.1,0.9,2,2,2S26,15.1,26,14z" />
+</vector>
\ No newline at end of file
diff --git a/packages/SystemUI/res/values/cm_arrays.xml b/packages/SystemUI/res/values/cm_arrays.xml
index a9e3654..cabf612 100644
--- a/packages/SystemUI/res/values/cm_arrays.xml
+++ b/packages/SystemUI/res/values/cm_arrays.xml
@@ -24,4 +24,16 @@
         <item>369</item><item>157</item>
         <item>369</item><item>0</item>
     </array>
+
+    <!-- Cardinal directions for the compass tile -->
+    <string-array name="cardinal_directions">
+        <item>N</item>  <!-- North -->
+        <item>NE</item> <!-- North east -->
+        <item>E</item>  <!-- East -->
+        <item>SE</item> <!-- South east -->
+        <item>S</item>  <!-- South -->
+        <item>SW</item> <!-- South west -->
+        <item>W</item>  <!-- West -->
+        <item>NW</item> <!-- North west -->
+    </string-array>
 </resources>
diff --git a/packages/SystemUI/res/values/cm_strings.xml b/packages/SystemUI/res/values/cm_strings.xml
index 69c8ee0..964b217 100644
--- a/packages/SystemUI/res/values/cm_strings.xml
+++ b/packages/SystemUI/res/values/cm_strings.xml
@@ -68,6 +68,9 @@
 
     <!-- Content description of the light brightness slider (not shown on the screen). [CHAR LIMIT=NONE] -->
     <string name="accessibility_notification_brightness">Light brightness</string>
+    <string name="quick_settings_compass_value" translatable="false"><xliff:g id="degrees">%1$.0f</xliff:g>\u00b0 <xliff:g id="direction">%2$s</xliff:g></string>
+    <string name="quick_settings_compass_off">Compass off</string>
+    <string name="quick_settings_compass_init">Initializing\u2026</string>
 
     <!-- Lights settings, LED notification -->
     <string name="led_notification_title">Light settings</string>
@@ -91,4 +94,5 @@
     <string name="quick_settings_network_adb_enabled_label">Enabled</string>
     <string name="quick_settings_network_adb_disabled_label">Disabled</string>
     <string name="qs_tile_adb_over_network">ADB over network</string>
+    <string name="qs_tile_compass">Compass</string>
 </resources>
diff --git a/packages/SystemUI/src/com/android/systemui/qs/tiles/CompassTile.java b/packages/SystemUI/src/com/android/systemui/qs/tiles/CompassTile.java
new file mode 100644
index 0000000..f7af7f9
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/qs/tiles/CompassTile.java
@@ -0,0 +1,193 @@
+/*
+ * 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.android.systemui.qs.tiles;
+
+import android.content.Context;
+import android.hardware.Sensor;
+import android.hardware.SensorEvent;
+import android.hardware.SensorEventListener;
+import android.hardware.SensorManager;
+import android.widget.ImageView;
+
+import com.android.internal.logging.MetricsConstants;
+import com.android.systemui.R;
+import com.android.systemui.qs.QSTile;
+import com.android.systemui.qs.QSTileView;
+
+public class CompassTile extends QSTile<QSTile.BooleanState> implements SensorEventListener {
+    private final static float ALPHA = 0.97f;
+
+    private boolean mActive = false;
+
+    private SensorManager mSensorManager;
+    private Sensor mAccelerationSensor;
+    private Sensor mGeomagneticFieldSensor;
+
+    private float[] mAcceleration;
+    private float[] mGeomagnetic;
+
+    private ImageView mImage;
+    private boolean mListeningSensors;
+
+    public CompassTile(Host host) {
+        super(host);
+        mSensorManager = (SensorManager) mContext.getSystemService(Context.SENSOR_SERVICE);
+        mAccelerationSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
+        mGeomagneticFieldSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD);
+    }
+
+    @Override
+    protected BooleanState newTileState() {
+        return new BooleanState();
+    }
+
+    @Override
+    protected void handleDestroy() {
+        super.handleDestroy();
+        setListeningSensors(false);
+        mSensorManager = null;
+        mImage = null;
+    }
+
+    @Override
+    public QSTileView createTileView(Context context) {
+        QSTileView tileView = super.createTileView(context);
+        mImage = (ImageView) tileView.findViewById(android.R.id.icon);
+        return tileView;
+    }
+
+    @Override
+    protected void handleClick() {
+        mActive = !mActive;
+        refreshState();
+        setListeningSensors(mActive);
+    }
+
+    private void setListeningSensors(boolean listening) {
+        if (listening == mListeningSensors) return;
+        mListeningSensors = listening;
+        if (mListeningSensors) {
+            mSensorManager.registerListener(
+                    this, mAccelerationSensor, SensorManager.SENSOR_DELAY_GAME);
+            mSensorManager.registerListener(
+                    this, mGeomagneticFieldSensor, SensorManager.SENSOR_DELAY_GAME);
+        } else {
+            mSensorManager.unregisterListener(this);
+        }
+    }
+
+    @Override
+    protected void handleUpdateState(BooleanState state, Object arg) {
+        Float degrees = arg == null ? 0 :(float) arg;
+
+        state.visible = true;
+        state.value = mActive;
+
+        if (state.value) {
+            state.icon = ResourceIcon.get(R.drawable.ic_qs_compass_on);
+            if (arg != null) {
+                state.label = formatValueWithCardinalDirection(degrees);
+
+                float target = 360 - degrees;
+                float relative = target - mImage.getRotation();
+                if (relative > 180) relative -= 360;
+
+                mImage.setRotation(mImage.getRotation() + relative / 2);
+
+            } else {
+                state.label = mContext.getString(R.string.quick_settings_compass_init);
+                mImage.setRotation(0);
+            }
+        } else {
+            state.icon = ResourceIcon.get(R.drawable.ic_qs_compass_off);
+            state.label = mContext.getString(R.string.quick_settings_compass_off);
+            mImage.setRotation(0);
+        }
+    }
+
+    @Override
+    public int getMetricsCategory() {
+        return MetricsConstants.DONT_TRACK_ME_BRO;
+    }
+
+    @Override
+    public void setListening(boolean listening) {
+        if (!listening) {
+            setListeningSensors(false);
+            mActive = false;
+        }
+    }
+
+    private String formatValueWithCardinalDirection(float degree) {
+        int cardinalDirectionIndex = (int) (Math.floor(((degree - 22.5) % 360) / 45) + 1) % 8;
+        String[] cardinalDirections = mContext.getResources().getStringArray(
+                R.array.cardinal_directions);
+
+        return mContext.getString(R.string.quick_settings_compass_value, degree,
+                cardinalDirections[cardinalDirectionIndex]);
+    }
+
+    @Override
+    public void onSensorChanged(SensorEvent event) {
+        float[] values;
+        if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
+            if (mAcceleration == null) {
+                mAcceleration = event.values.clone();
+            }
+
+            values = mAcceleration;
+        } else {
+            // Magnetic field sensor
+            if (mGeomagnetic == null) {
+                mGeomagnetic = event.values.clone();
+            }
+
+            values = mGeomagnetic;
+        }
+
+        for (int i = 0; i < 3; i++) {
+            values[i] = ALPHA * values[i] + (1 - ALPHA) * event.values[i];
+        }
+
+        if (!mActive || !mListeningSensors || mAcceleration == null || mGeomagnetic == null) {
+            // Nothing to do at this moment
+            return;
+        }
+
+        float R[] = new float[9];
+        float I[] = new float[9];
+        if (!SensorManager.getRotationMatrix(R, I, mAcceleration, mGeomagnetic)) {
+            // Rotation matrix couldn't be calculated
+            return;
+        }
+
+        // Get the current orientation
+        float[] orientation = new float[3];
+        SensorManager.getOrientation(R, orientation);
+
+        // Convert azimuth to degrees
+        Float newDegree = Float.valueOf((float) Math.toDegrees(orientation[0]));
+        newDegree = (newDegree + 360) % 360;
+
+        refreshState(newDegree);
+    }
+
+    @Override
+    public void onAccuracyChanged(Sensor sensor, int accuracy) {
+        // noop
+    }
+}
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/QSTileHost.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/QSTileHost.java
index de7e96e..f1dba43 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/QSTileHost.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/QSTileHost.java
@@ -42,6 +42,7 @@ import com.android.systemui.qs.tiles.BluetoothTile;
 import com.android.systemui.qs.tiles.CastTile;
 import com.android.systemui.qs.tiles.CellularTile;
 import com.android.systemui.qs.tiles.ColorInversionTile;
+import com.android.systemui.qs.tiles.CompassTile;
 import com.android.systemui.qs.tiles.CustomQSTile;
 import com.android.systemui.qs.tiles.DndTile;
 import com.android.systemui.qs.tiles.EditTile;
@@ -330,6 +331,7 @@ public class QSTileHost implements QSTile.Host, Tunable {
         else if (tileSpec.equals("cast")) return new CastTile(this);
         else if (tileSpec.equals("hotspot")) return new HotspotTile(this);
         else if (tileSpec.equals("edit")) return new EditTile(this);
+        else if (tileSpec.equals("compass")) return new CompassTile(this);
         else if (tileSpec.startsWith(IntentTile.PREFIX)) return IntentTile.create(this,tileSpec);
         else throw new IllegalArgumentException("Bad tile spec: " + tileSpec);
     }
@@ -401,6 +403,7 @@ public class QSTileHost implements QSTile.Host, Tunable {
         else if (spec.equals("hotspot")) return R.string.quick_settings_hotspot_label;
         else if (spec.equals("edit")) return R.string.quick_settings_edit_label;
         else if (spec.equals("adb_network")) return R.string.qs_tile_adb_over_network;
+        else if (spec.equals("compass")) return R.string.qs_tile_compass;
         return 0;
     }