Add Sensors Off QS tile and display status bar icon when active

This CL will replace the SensorPrivacyTile with a new tile that can be
enabled from the developer settings. When this new tile is enabled only
the camera, mic, and sensors controlled by the SensorManager will be
disabled; the location and airplane mode tiles will not be modified.
The user will be notified when this tile is enabled with the sensors
off icon in the status bar.

Fixes: 126618519
Test: Manually verified airplane and location are not modified when sensors
      off is enabled; also verified icon is displayed when mode is active.

Change-Id: Iabf099d0d76c015015ce9859edc0b225ec554020
diff --git a/packages/SystemUI/src/com/android/systemui/Dependency.java b/packages/SystemUI/src/com/android/systemui/Dependency.java
index b7d1900..70f2cce 100644
--- a/packages/SystemUI/src/com/android/systemui/Dependency.java
+++ b/packages/SystemUI/src/com/android/systemui/Dependency.java
@@ -97,6 +97,7 @@
 import com.android.systemui.statusbar.policy.RemoteInputQuickSettingsDisabler;
 import com.android.systemui.statusbar.policy.RotationLockController;
 import com.android.systemui.statusbar.policy.SecurityController;
+import com.android.systemui.statusbar.policy.SensorPrivacyController;
 import com.android.systemui.statusbar.policy.SmartReplyConstants;
 import com.android.systemui.statusbar.policy.UserInfoController;
 import com.android.systemui.statusbar.policy.UserSwitcherController;
@@ -291,6 +292,7 @@
     @Inject Lazy<ActivityManagerWrapper> mActivityManagerWrapper;
     @Inject Lazy<DevicePolicyManagerWrapper> mDevicePolicyManagerWrapper;
     @Inject Lazy<PackageManagerWrapper> mPackageManagerWrapper;
+    @Inject Lazy<SensorPrivacyController> mSensorPrivacyController;
 
     @Inject
     public Dependency() {
@@ -461,6 +463,7 @@
         mProviders.put(ActivityManagerWrapper.class, mActivityManagerWrapper::get);
         mProviders.put(DevicePolicyManagerWrapper.class, mDevicePolicyManagerWrapper::get);
         mProviders.put(PackageManagerWrapper.class, mPackageManagerWrapper::get);
+        mProviders.put(SensorPrivacyController.class, mSensorPrivacyController::get);
 
 
         // TODO(b/118592525): to support multi-display , we start to add something which is
diff --git a/packages/SystemUI/src/com/android/systemui/DependencyBinder.java b/packages/SystemUI/src/com/android/systemui/DependencyBinder.java
index 3c6f081..53050bf 100644
--- a/packages/SystemUI/src/com/android/systemui/DependencyBinder.java
+++ b/packages/SystemUI/src/com/android/systemui/DependencyBinder.java
@@ -60,6 +60,8 @@
 import com.android.systemui.statusbar.policy.RotationLockControllerImpl;
 import com.android.systemui.statusbar.policy.SecurityController;
 import com.android.systemui.statusbar.policy.SecurityControllerImpl;
+import com.android.systemui.statusbar.policy.SensorPrivacyController;
+import com.android.systemui.statusbar.policy.SensorPrivacyControllerImpl;
 import com.android.systemui.statusbar.policy.UserInfoController;
 import com.android.systemui.statusbar.policy.UserInfoControllerImpl;
 import com.android.systemui.statusbar.policy.ZenModeController;
@@ -225,5 +227,11 @@
     /**
      */
     @Binds
+    public abstract SensorPrivacyController provideSensorPrivacyControllerImpl(
+            SensorPrivacyControllerImpl controllerImpl);
+
+    /**
+     */
+    @Binds
     public abstract QSHost provideQsHost(QSTileHost controllerImpl);
 }
diff --git a/packages/SystemUI/src/com/android/systemui/qs/tileimpl/QSFactoryImpl.java b/packages/SystemUI/src/com/android/systemui/qs/tileimpl/QSFactoryImpl.java
index d26cee9..2956ad0 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/tileimpl/QSFactoryImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/tileimpl/QSFactoryImpl.java
@@ -41,7 +41,6 @@
 import com.android.systemui.qs.tiles.NfcTile;
 import com.android.systemui.qs.tiles.NightDisplayTile;
 import com.android.systemui.qs.tiles.RotationLockTile;
-import com.android.systemui.qs.tiles.SensorPrivacyTile;
 import com.android.systemui.qs.tiles.UserTile;
 import com.android.systemui.qs.tiles.WifiTile;
 import com.android.systemui.qs.tiles.WorkModeTile;
@@ -73,7 +72,6 @@
     private final Provider<DataSaverTile> mDataSaverTileProvider;
     private final Provider<NightDisplayTile> mNightDisplayTileProvider;
     private final Provider<NfcTile> mNfcTileProvider;
-    private final Provider<SensorPrivacyTile> mSensorPrivacyTileProvider;
     private final Provider<GarbageMonitor.MemoryTile> mMemoryTileProvider;
 
     private QSTileHost mHost;
@@ -96,7 +94,6 @@
             Provider<DataSaverTile> dataSaverTileProvider,
             Provider<NightDisplayTile> nightDisplayTileProvider,
             Provider<NfcTile> nfcTileProvider,
-            Provider<SensorPrivacyTile> sensorPrivacyTileProvider,
             Provider<GarbageMonitor.MemoryTile> memoryTileProvider) {
         mWifiTileProvider = wifiTileProvider;
         mBluetoothTileProvider = bluetoothTileProvider;
@@ -115,7 +112,6 @@
         mDataSaverTileProvider = dataSaverTileProvider;
         mNightDisplayTileProvider = nightDisplayTileProvider;
         mNfcTileProvider = nfcTileProvider;
-        mSensorPrivacyTileProvider = sensorPrivacyTileProvider;
         mMemoryTileProvider = memoryTileProvider;
     }
 
@@ -168,8 +164,6 @@
                 return mNightDisplayTileProvider.get();
             case "nfc":
                 return mNfcTileProvider.get();
-            case "sensorprivacy":
-                return mSensorPrivacyTileProvider.get();
         }
 
         // Intent tiles.
diff --git a/packages/SystemUI/src/com/android/systemui/qs/tiles/SensorPrivacyTile.java b/packages/SystemUI/src/com/android/systemui/qs/tiles/SensorPrivacyTile.java
deleted file mode 100644
index 7ee37d5..0000000
--- a/packages/SystemUI/src/com/android/systemui/qs/tiles/SensorPrivacyTile.java
+++ /dev/null
@@ -1,131 +0,0 @@
-/*
- * Copyright (C) 2018 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 android.content.Intent;
-import android.hardware.SensorPrivacyManager;
-import android.service.quicksettings.Tile;
-import android.widget.Switch;
-
-import com.android.internal.logging.MetricsLogger;
-import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
-import com.android.systemui.R;
-import com.android.systemui.plugins.ActivityStarter;
-import com.android.systemui.plugins.qs.QSTile.BooleanState;
-import com.android.systemui.qs.QSHost;
-import com.android.systemui.qs.tileimpl.QSTileImpl;
-import com.android.systemui.statusbar.policy.KeyguardMonitor;
-
-import javax.inject.Inject;
-
-/** Quick settings tile: SensorPrivacy mode **/
-public class SensorPrivacyTile extends QSTileImpl<BooleanState> implements
-        SensorPrivacyManager.OnSensorPrivacyChangedListener {
-    private static final String TAG = "SensorPrivacy";
-    private final Icon mIcon =
-            ResourceIcon.get(R.drawable.ic_signal_sensors);
-    private final KeyguardMonitor mKeyguard;
-    private final SensorPrivacyManager mSensorPrivacyManager;
-    private final ActivityStarter mActivityStarter;
-
-    @Inject
-    public SensorPrivacyTile(QSHost host, SensorPrivacyManager sensorPrivacyManager,
-            KeyguardMonitor keyguardMonitor, ActivityStarter activityStarter) {
-        super(host);
-
-        mSensorPrivacyManager = sensorPrivacyManager;
-        mKeyguard = keyguardMonitor;
-        mActivityStarter = activityStarter;
-    }
-
-    @Override
-    public BooleanState newTileState() {
-        return new BooleanState();
-    }
-
-    @Override
-    public void handleClick() {
-        final boolean wasEnabled = mState.value;
-        // Don't allow disabling from the lockscreen.
-        if (wasEnabled && mKeyguard.isSecure() && mKeyguard.isShowing()) {
-            mActivityStarter.postQSRunnableDismissingKeyguard(() -> {
-                MetricsLogger.action(mContext, getMetricsCategory(), !wasEnabled);
-                setEnabled(!wasEnabled);
-            });
-            return;
-        }
-
-        MetricsLogger.action(mContext, getMetricsCategory(), !wasEnabled);
-        setEnabled(!wasEnabled);
-    }
-
-    private void setEnabled(boolean enabled) {
-        mSensorPrivacyManager.setSensorPrivacy(enabled);
-    }
-
-    @Override
-    public CharSequence getTileLabel() {
-        return mContext.getString(R.string.sensor_privacy_mode);
-    }
-
-    @Override
-    public Intent getLongClickIntent() {
-        return new Intent();
-    }
-
-    @Override
-    protected void handleUpdateState(BooleanState state, Object arg) {
-        final boolean enabled = arg instanceof Boolean ? (Boolean) arg
-                : mSensorPrivacyManager.isSensorPrivacyEnabled();
-        state.value = enabled;
-        state.label = mContext.getString(R.string.sensor_privacy_mode);
-        state.icon = mIcon;
-        state.state = enabled ? Tile.STATE_ACTIVE : Tile.STATE_INACTIVE;
-        state.contentDescription = state.label;
-        state.expandedAccessibilityClassName = Switch.class.getName();
-    }
-
-    @Override
-    public int getMetricsCategory() {
-        return MetricsEvent.QS_SENSOR_PRIVACY;
-    }
-
-    @Override
-    protected String composeChangeAnnouncement() {
-        if (mState.value) {
-            return mContext
-                    .getString(R.string.accessibility_quick_settings_sensor_privacy_changed_on);
-        } else {
-            return mContext
-                    .getString(R.string.accessibility_quick_settings_sensor_privacy_changed_off);
-        }
-    }
-
-    @Override
-    protected void handleSetListening(boolean listening) {
-        if (listening) {
-            mSensorPrivacyManager.addSensorPrivacyListener(this);
-        } else {
-            mSensorPrivacyManager.removeSensorPrivacyListener(this);
-        }
-    }
-
-    @Override
-    public void onSensorPrivacyChanged(boolean enabled) {
-        refreshState(enabled);
-    }
-}
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarPolicy.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarPolicy.java
index 4a86484..b7a7873 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarPolicy.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarPolicy.java
@@ -60,6 +60,7 @@
 import com.android.systemui.statusbar.policy.NextAlarmController;
 import com.android.systemui.statusbar.policy.RotationLockController;
 import com.android.systemui.statusbar.policy.RotationLockController.RotationLockControllerCallback;
+import com.android.systemui.statusbar.policy.SensorPrivacyController;
 import com.android.systemui.statusbar.policy.UserInfoController;
 import com.android.systemui.statusbar.policy.ZenModeController;
 
@@ -100,6 +101,7 @@
     private final String mSlotLocation;
     private final String mSlotMicrophone;
     private final String mSlotCamera;
+    private final String mSlotSensorsOff;
 
     private final Context mContext;
     private final Handler mHandler = new Handler();
@@ -118,6 +120,7 @@
     private final LocationController mLocationController;
     private final PrivacyItemController mPrivacyItemController;
     private final UiOffloadThread mUiOffloadThread = Dependency.get(UiOffloadThread.class);
+    private final SensorPrivacyController mSensorPrivacyController;
 
     // Assume it's all good unless we hear otherwise.  We don't always seem
     // to get broadcasts that it *is* there.
@@ -149,6 +152,7 @@
         mKeyguardMonitor = Dependency.get(KeyguardMonitor.class);
         mLocationController = Dependency.get(LocationController.class);
         mPrivacyItemController = Dependency.get(PrivacyItemController.class);
+        mSensorPrivacyController = Dependency.get(SensorPrivacyController.class);
 
         mSlotCast = context.getString(com.android.internal.R.string.status_bar_cast);
         mSlotHotspot = context.getString(com.android.internal.R.string.status_bar_hotspot);
@@ -165,6 +169,7 @@
         mSlotLocation = context.getString(com.android.internal.R.string.status_bar_location);
         mSlotMicrophone = context.getString(com.android.internal.R.string.status_bar_microphone);
         mSlotCamera = context.getString(com.android.internal.R.string.status_bar_camera);
+        mSlotSensorsOff = context.getString(com.android.internal.R.string.status_bar_sensors_off);
 
         // listen for broadcasts
         IntentFilter filter = new IntentFilter();
@@ -232,6 +237,11 @@
                 mContext.getString(R.string.accessibility_location_active));
         mIconController.setIconVisibility(mSlotLocation, false);
 
+        // sensors off
+        mIconController.setIcon(mSlotSensorsOff, R.drawable.stat_sys_sensors_off, null);
+        mIconController.setIconVisibility(mSlotSensorsOff,
+                mSensorPrivacyController.isSensorPrivacyEnabled());
+
         mRotationLockController.addCallback(this);
         mBluetooth.addCallback(this);
         mProvisionedController.addCallback(this);
@@ -242,6 +252,7 @@
         mDataSaver.addCallback(this);
         mKeyguardMonitor.addCallback(this);
         mPrivacyItemController.addCallback(this);
+        mSensorPrivacyController.addCallback(mSensorPrivacyListener);
 
         SysUiServiceProvider.getComponent(mContext, CommandQueue.class).addCallback(this);
     }
@@ -514,6 +525,16 @@
                 }
             };
 
+    private final SensorPrivacyController.OnSensorPrivacyChangedListener mSensorPrivacyListener =
+            new SensorPrivacyController.OnSensorPrivacyChangedListener() {
+                @Override
+                public void onSensorPrivacyChanged(boolean enabled) {
+                    mHandler.post(() -> {
+                        mIconController.setIconVisibility(mSlotSensorsOff, enabled);
+                    });
+                }
+            };
+
     @Override
     public void appTransitionStarting(int displayId, long startTime, long duration,
             boolean forced) {
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/SensorPrivacyController.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/SensorPrivacyController.java
new file mode 100644
index 0000000..6d5ce60
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/SensorPrivacyController.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2019 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;
+
+/**
+ * Interface for classes to control sensor privacy state and notification.
+ */
+public interface SensorPrivacyController extends
+        CallbackController<SensorPrivacyController.OnSensorPrivacyChangedListener> {
+
+    /**
+     * Returns whether sensor privacy is enabled.
+     */
+    boolean isSensorPrivacyEnabled();
+
+    /**
+     * Interface for classes to receive callbacks when sensor privacy state changes.
+     */
+    interface OnSensorPrivacyChangedListener {
+        void onSensorPrivacyChanged(boolean enabled);
+    }
+}
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/SensorPrivacyControllerImpl.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/SensorPrivacyControllerImpl.java
new file mode 100644
index 0000000..5db6693
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/SensorPrivacyControllerImpl.java
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2019 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.hardware.SensorPrivacyManager;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.inject.Inject;
+import javax.inject.Singleton;
+
+/**
+ * Controls sensor privacy state and notification.
+ */
+@Singleton
+public class SensorPrivacyControllerImpl implements SensorPrivacyController,
+        SensorPrivacyManager.OnSensorPrivacyChangedListener {
+    private SensorPrivacyManager mSensorPrivacyManager;
+    private final List<OnSensorPrivacyChangedListener> mListeners;
+    private Object mLock = new Object();
+    private boolean mSensorPrivacyEnabled;
+
+    /**
+     * Public constructor.
+     */
+    @Inject
+    public SensorPrivacyControllerImpl(Context context) {
+        mSensorPrivacyManager = (SensorPrivacyManager) context.getSystemService(
+                Context.SENSOR_PRIVACY_SERVICE);
+        mSensorPrivacyEnabled = mSensorPrivacyManager.isSensorPrivacyEnabled();
+        mSensorPrivacyManager.addSensorPrivacyListener(this);
+        mListeners = new ArrayList<>(1);
+    }
+
+    /**
+     * Returns whether sensor privacy is enabled.
+     */
+    public boolean isSensorPrivacyEnabled() {
+        synchronized (mLock) {
+            return mSensorPrivacyEnabled;
+        }
+    }
+
+    /**
+     * Adds the provided listener for callbacks when sensor privacy state changes.
+     */
+    public void addCallback(OnSensorPrivacyChangedListener listener) {
+        synchronized (mLock) {
+            mListeners.add(listener);
+            notifyListenerLocked(listener);
+        }
+    }
+
+    /**
+     * Removes the provided listener from callbacks when sensor privacy state changes.
+     */
+    public void removeCallback(OnSensorPrivacyChangedListener listener) {
+        synchronized (mLock) {
+            mListeners.remove(listener);
+        }
+    }
+
+    /**
+     * Callback invoked by the SensorPrivacyService when sensor privacy state changes.
+     */
+    public void onSensorPrivacyChanged(boolean enabled) {
+        synchronized (mLock) {
+            mSensorPrivacyEnabled = enabled;
+            for (OnSensorPrivacyChangedListener listener : mListeners) {
+                notifyListenerLocked(listener);
+            }
+        }
+    }
+
+    private void notifyListenerLocked(OnSensorPrivacyChangedListener listener) {
+        listener.onSensorPrivacyChanged(mSensorPrivacyEnabled);
+    }
+}