Merge "Add data saver tile"

10 files changed, 240 insertions, 1 deletions

diff --git a/packages/SystemUI/res/drawable/ic_data_saver.xml b/packages/SystemUI/res/drawable/ic_data_saver.xml
new file mode 100644
index 000000000000..426238c05f4b
--- /dev/null
+++ b/packages/SystemUI/res/drawable/ic_data_saver.xml
@@ -0,0 +1,28 @@
+<!--
+    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.
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24.0dp"
+        android:height="24.0dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FFFFFFFF"
+        android:pathData="
+        M9.0,16.0l2.0,0.0L11.0,8.0L9.0,8.0l0.0,8.0z
+        m3.0,-14.0C6.48,2.0 2.0,6.48 2.0,12.0s4.48,10.0 10.0,10.0 10.0,-4.48 10.0,-10.0S17.52,2.0 12.0,2.0z
+        m0.0,18.0c-4.41,0.0 -8.0,-3.59 -8.0,-8.0s3.59,-8.0 8.0,-8.0 8.0,3.59 8.0,8.0 -3.59,8.0 -8.0,8.0z
+        m1.0,-4.0l2.0,0.0l0.0,-8.0l-2.0,0.0l0.0,8.0z"/>
+</vector>
diff --git a/packages/SystemUI/res/drawable/ic_data_saver_off.xml b/packages/SystemUI/res/drawable/ic_data_saver_off.xml
new file mode 100644
index 000000000000..0713548fcd4d
--- /dev/null
+++ b/packages/SystemUI/res/drawable/ic_data_saver_off.xml
@@ -0,0 +1,28 @@
+<!--
+    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.
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24.0dp"
+        android:height="24.0dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#4DFFFFFF"
+        android:pathData="
+        M9.0,16.0l2.0,0.0L11.0,8.0L9.0,8.0l0.0,8.0z
+        m3.0,-14.0C6.48,2.0 2.0,6.48 2.0,12.0s4.48,10.0 10.0,10.0 10.0,-4.48 10.0,-10.0S17.52,2.0 12.0,2.0z
+        m0.0,18.0c-4.41,0.0 -8.0,-3.59 -8.0,-8.0s3.59,-8.0 8.0,-8.0 8.0,3.59 8.0,8.0 -3.59,8.0 -8.0,8.0z
+        m1.0,-4.0l2.0,0.0l0.0,-8.0l-2.0,0.0l0.0,8.0z"/>
+</vector>
diff --git a/packages/SystemUI/res/values/strings.xml b/packages/SystemUI/res/values/strings.xml
index 814e7eae0474..faf36eca176f 100644
--- a/packages/SystemUI/res/values/strings.xml
+++ b/packages/SystemUI/res/values/strings.xml
@@ -1333,4 +1333,13 @@
     <!-- Explanation of the status bar section of the tuner [CHAR LIMIT=NONE] -->
     <string name="tuner_status_bar_explanation">Enable or disable icons from being shown in the status bar.</string>
 
+    <!-- Label for quick settings tile for data saver [CHAR LIMIT=30] -->
+    <string name="data_saver">Data Saver</string>
+
+    <!-- Accessibility description for data saver being on [CHAR LIMIT=NONE] -->
+    <string name="accessibility_data_saver_on">Data Saver is on</string>
+
+    <!-- Accessibility description for data saver being off [CHAR LIMIT=NONE] -->
+    <string name="accessibility_data_saver_off">Data Saver is off</string>
+
 </resources>
diff --git a/packages/SystemUI/src/com/android/systemui/qs/customize/TileAdapter.java b/packages/SystemUI/src/com/android/systemui/qs/customize/TileAdapter.java
index 6e22dde542d0..543a2f32b090 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/customize/TileAdapter.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/customize/TileAdapter.java
@@ -73,7 +73,7 @@ public class TileAdapter extends BaseAdapter {
             mCurrentTiles = tileSpecs;
             final TileGroup group = new TileGroup("com.android.settings", mContext);
             String possible = mContext.getString(R.string.quick_settings_tiles_default)
-                    + ",user,hotspot,inversion";
+                    + ",user,hotspot,inversion,saver";
             String[] possibleTiles = possible.split(",");
             for (int i = 0; i < possibleTiles.length; i++) {
                 final String spec = possibleTiles[i];
diff --git a/packages/SystemUI/src/com/android/systemui/qs/tiles/DataSaverTile.java b/packages/SystemUI/src/com/android/systemui/qs/tiles/DataSaverTile.java
new file mode 100644
index 000000000000..1aeb0fe6c9dd
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/qs/tiles/DataSaverTile.java
@@ -0,0 +1,73 @@
+/*
+ * 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.systemui.qs.tiles;
+
+import com.android.internal.logging.MetricsProto.MetricsEvent;
+import com.android.systemui.R;
+import com.android.systemui.qs.QSTile;
+import com.android.systemui.statusbar.policy.DataSaverController;
+
+public class DataSaverTile extends QSTile<QSTile.BooleanState> implements
+        DataSaverController.Listener{
+
+    private final DataSaverController mDataSaverController;
+
+    public DataSaverTile(Host host) {
+        super(host);
+        mDataSaverController = host.getNetworkController().getDataSaverController();
+    }
+
+    @Override
+    protected BooleanState newTileState() {
+        return new BooleanState();
+    }
+
+    @Override
+    public void setListening(boolean listening) {
+        if (listening) {
+            mDataSaverController.addListener(this);
+        } else {
+            mDataSaverController.remListener(this);
+        }
+    }
+
+    @Override
+    protected void handleClick() {
+        mState.value = !mDataSaverController.isDataSaverEnabled();
+        mDataSaverController.setDataSaverEnabled(mState.value);
+        refreshState(mState.value);
+    }
+
+    @Override
+    protected void handleUpdateState(BooleanState state, Object arg) {
+        state.value = arg instanceof Boolean ? (Boolean) arg
+                : mDataSaverController.isDataSaverEnabled();
+        state.label = mContext.getString(R.string.data_saver);
+        state.contentDescription = mContext.getString(state.value ?
+                R.string.accessibility_data_saver_on : R.string.accessibility_data_saver_off);
+        state.icon = ResourceIcon.get(state.value ? R.drawable.ic_data_saver
+                : R.drawable.ic_data_saver_off);
+    }
+
+    @Override
+    public int getMetricsCategory() {
+        return MetricsEvent.QS_DATA_SAVER;
+    }
+
+    @Override
+    public void onDataSaverChanged(boolean isDataSaving) {
+        refreshState(isDataSaving);
+    }
+}
\ No newline at end of file
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 7e278560ba55..9c2159be1b98 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/QSTileHost.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/QSTileHost.java
@@ -38,6 +38,7 @@ 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.DataSaverTile;
 import com.android.systemui.qs.tiles.DndTile;
 import com.android.systemui.qs.tiles.FlashlightTile;
 import com.android.systemui.qs.tiles.HotspotTile;
@@ -346,6 +347,7 @@ public final class QSTileHost implements QSTile.Host, Tunable {
         else if (tileSpec.equals("hotspot")) return new HotspotTile(this);
         else if (tileSpec.equals("user")) return new UserTile(this);
         else if (tileSpec.equals("battery")) return new BatteryTile(this);
+        else if (tileSpec.equals("saver")) return new DataSaverTile(this);
         else if (tileSpec.equals(ColorMatrixTile.COLOR_MATRIX_SPEC))
             return new ColorMatrixTile(this);
         // Intent tiles.
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/DataSaverController.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/DataSaverController.java
new file mode 100644
index 000000000000..186e8b51d58c
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/DataSaverController.java
@@ -0,0 +1,89 @@
+/*
+ * 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.systemui.statusbar.policy;
+
+import android.content.Context;
+import android.net.INetworkPolicyListener;
+import android.net.NetworkPolicyManager;
+import android.os.Handler;
+import android.os.RemoteException;
+
+import java.util.ArrayList;
+
+public class DataSaverController {
+
+    private final Handler mHandler = new Handler();
+    private final ArrayList<Listener> mListeners = new ArrayList<>();
+    private final NetworkPolicyManager mPolicyManager;
+
+    public DataSaverController(Context context) {
+        mPolicyManager = NetworkPolicyManager.from(context);
+    }
+
+    private void handleRestrictBackgroundChanged(boolean isDataSaving) {
+        final int N = mListeners.size();
+        for (int i = 0; i < N; i++) {
+            mListeners.get(i).onDataSaverChanged(isDataSaving);
+        }
+    }
+
+    public void addListener(Listener listener) {
+        mListeners.add(listener);
+        if (mListeners.size() == 1) {
+            mPolicyManager.registerListener(mPolicyListener);
+        }
+        listener.onDataSaverChanged(isDataSaverEnabled());
+    }
+
+    public void remListener(Listener listener) {
+        mListeners.remove(listener);
+        if (mListeners.size() == 0) {
+            mPolicyManager.unregisterListener(mPolicyListener);
+        }
+    }
+
+    public boolean isDataSaverEnabled() {
+        return mPolicyManager.getRestrictBackground();
+    }
+
+    public void setDataSaverEnabled(boolean enabled) {
+        mPolicyManager.setRestrictBackground(enabled);
+    }
+
+    private final INetworkPolicyListener mPolicyListener = new INetworkPolicyListener.Stub() {
+        @Override
+        public void onUidRulesChanged(int i, int i1) throws RemoteException {
+        }
+
+        @Override
+        public void onMeteredIfacesChanged(String[] strings) throws RemoteException {
+        }
+
+        @Override
+        public void onRestrictBackgroundChanged(final boolean isDataSaving) throws RemoteException {
+            mHandler.post(new Runnable() {
+                @Override
+                public void run() {
+                    handleRestrictBackgroundChanged(isDataSaving);
+                }
+            });
+        }
+    };
+
+    public interface Listener {
+        void onDataSaverChanged(boolean isDataSaving);
+    }
+
+}
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkController.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkController.java
index b2bcde3db937..755a5b3f511d 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkController.java
@@ -33,6 +33,7 @@ public interface NetworkController {
     void onUserSwitched(int newUserId);
     AccessPointController getAccessPointController();
     DataUsageController getMobileDataController();
+    DataSaverController getDataSaverController();
 
     public interface SignalCallback {
         void setWifiIndicators(boolean enabled, IconState statusIcon, IconState qsIcon,
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkControllerImpl.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkControllerImpl.java
index 3385c820a64f..dbb0295e7029 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkControllerImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkControllerImpl.java
@@ -78,6 +78,7 @@ public class NetworkControllerImpl extends BroadcastReceiver
     private final SubscriptionManager mSubscriptionManager;
     private final boolean mHasMobileDataFeature;
     private final SubscriptionDefaults mSubDefaults;
+    private final DataSaverController mDataSaverController;
     private Config mConfig;
 
     // Subcontrollers.
@@ -156,6 +157,7 @@ public class NetworkControllerImpl extends BroadcastReceiver
         mConfig = config;
         mReceiverHandler = new Handler(bgLooper);
         mCallbackHandler = callbackHandler;
+        mDataSaverController = new DataSaverController(context);
 
         mSubscriptionManager = subManager;
         mSubDefaults = defaultsHandler;
@@ -189,6 +191,10 @@ public class NetworkControllerImpl extends BroadcastReceiver
         updateAirplaneMode(true /* force callback */);
     }
 
+    public DataSaverController getDataSaverController() {
+        return mDataSaverController;
+    }
+
     private void registerListeners() {
         for (MobileSignalController mobileSignalController : mMobileSignalControllers.values()) {
             mobileSignalController.registerListener();
diff --git a/proto/src/metrics_constants.proto b/proto/src/metrics_constants.proto
index 88e55ddb4fda..697777c718a3 100644
--- a/proto/src/metrics_constants.proto
+++ b/proto/src/metrics_constants.proto
@@ -339,5 +339,8 @@ message MetricsEvent {
 
     // Logged when the user calls an emergency contact.
     ACTION_CALL_EMERGENCY_CONTACT = 283;
+
+    // QS Tile for Data Saver.
+    QS_DATA_SAVER = 284;
   }
 }