SetupWizard: Update Location services page

* Remove usage of deprecated setLocationProviderEnabled and
  isLocationProviderEnabled
* Use BroadcastReceiver to listen for changes to mode
* Replace GPS option with Battery Saving option (there is no longer a
  mode available in Android which disables GPS)

TODO: Create CMStats entry for ENABLE_BATTERY_SAVING_LOCATION

Change-Id: I2efe69125518637ae9b7d0dce285c39dae654d4c

3 files changed, 130 insertions, 86 deletions

diff --git a/res/layout/location_settings.xml b/res/layout/location_settings.xml
index 07142e3..53ae954 100644
--- a/res/layout/location_settings.xml
+++ b/res/layout/location_settings.xml
@@ -118,7 +118,7 @@
                 </LinearLayout>
 
                 <LinearLayout
-                    android:id="@+id/gps"
+                    android:id="@+id/battery_saving"
                     android:orientation="horizontal"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
@@ -128,7 +128,7 @@
                     android:clickable="true">
 
                     <CheckBox
-                        android:id="@+id/gps_checkbox"
+                        android:id="@+id/battery_saving_checkbox"
                         android:layout_width="wrap_content"
                         android:layout_height="wrap_content"
                         android:layout_gravity="top"
@@ -138,7 +138,7 @@
 
 
                     <TextView
-                        android:id="@+id/gps_summary"
+                        android:id="@+id/battery_saving_summary"
                         android:layout_width="0px"
                         android:layout_height="wrap_content"
                         android:layout_weight="1"
@@ -148,7 +148,7 @@
                         android:layout_marginLeft="@dimen/location_text_margin_left"
                         android:layout_marginRight="@dimen/location_text_margin_right"
                         android:paddingBottom="@dimen/content_margin_bottom"
-                        android:text="@string/location_gps"
+                        android:text="@string/location_battery_saving"
                         android:maxLines="5" />
 
                 </LinearLayout>
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 8fab9a1..5f1f183 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -51,8 +51,7 @@
     <string name="other_services_summary">These services put Google to work for you, and you can turn them on or off at any time. Data will be used in accordance with Google\'s <xliff:g id="name" example="Privacy Policy">%s</xliff:g>.</string>
     <string name="location_services_summary">Location services allows system and third party apps to gather and use data such as your approximate location. For example, an app may use your approximate location to locate nearby coffee shops.</string>
     <string name="location_access_summary"><b>Allow apps that have asked your permission</b> to use your location information. This may include your current location and past locations.</string>
-    <string name="location_gps" product="tablet"><b>Improve location accuracy</b> by allowing apps to use the GPS on your tablet.</string>
-    <string name="location_gps" product="default"><b>Improve location accuracy</b> by allowing apps to use the GPS on your phone.</string>
+    <string name="location_battery_saving"><b>Reduce battery consumption</b> by restricting the number of GPS updates per hour.</string>
     <string name="location_network"><b>Use Wi-Fi</b> to help apps determine your location.</string>
     <string name="location_network_telephony"><b>Use Wi-Fi and mobile networks</b> to help apps determine your location.</string>
     <string name="location_network_gms"><b>Use Google\'s location service</b> to help apps determine your location. This means sending anonymous location data to Google, even when no apps are running.</string>
diff --git a/src/com/cyanogenmod/setupwizard/setup/OtherSettingsPage.java b/src/com/cyanogenmod/setupwizard/setup/OtherSettingsPage.java
index 1ebd161..0ed17ff 100644
--- a/src/com/cyanogenmod/setupwizard/setup/OtherSettingsPage.java
+++ b/src/com/cyanogenmod/setupwizard/setup/OtherSettingsPage.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013 The CyanogenMod Project
+ * 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.
@@ -19,12 +19,10 @@ package com.cyanogenmod.setupwizard.setup;
 import android.app.Fragment;
 import android.app.FragmentManager;
 import android.app.backup.IBackupManager;
-import android.content.ComponentName;
-import android.content.ContentQueryMap;
+import android.content.BroadcastReceiver;
 import android.content.ContentResolver;
 import android.content.Context;
 import android.content.Intent;
-import android.database.Cursor;
 import android.location.LocationManager;
 import android.net.Uri;
 import android.os.Bundle;
@@ -44,12 +42,8 @@ import com.cyanogenmod.setupwizard.R;
 import com.cyanogenmod.setupwizard.SetupWizardApp;
 import com.cyanogenmod.setupwizard.cmstats.SetupStats;
 import com.cyanogenmod.setupwizard.ui.SetupPageFragment;
-import com.cyanogenmod.setupwizard.ui.WebViewDialogFragment;
 import com.cyanogenmod.setupwizard.util.SetupWizardUtils;
 
-import java.util.Observable;
-import java.util.Observer;
-
 public class OtherSettingsPage extends SetupPage {
 
     private static final String TAG = "OtherSettingsPage";
@@ -92,22 +86,25 @@ public class OtherSettingsPage extends SetupPage {
 
         private View mBackupRow;
         private View mLocationRow;
-        private View mGpsRow;
+        private View mBatteryRow;
         private View mNetworkRow;
         private CheckBox mBackup;
         private CheckBox mNetwork;
-        private CheckBox mGps;
+        private CheckBox mBattery;
         private CheckBox mLocationAccess;
 
         private ContentResolver mContentResolver;
 
         private IBackupManager mBackupManager;
 
-        // These provide support for receiving notification when Location Manager settings change.
-        // This is necessary because the Network Location Provider can change settings
-        // if the user does not confirm enabling the provider.
-        private ContentQueryMap mContentQueryMap;
-        private Observer mSettingsObserver;
+        /** Broadcast intent action when the location mode is about to change. */
+        private static final String MODE_CHANGING_ACTION =
+                "com.android.settings.location.MODE_CHANGING";
+        private static final String CURRENT_MODE_KEY = "CURRENT_MODE";
+        private static final String NEW_MODE_KEY = "NEW_MODE";
+
+        private int mCurrentMode = Settings.Secure.LOCATION_MODE_OFF;
+        private BroadcastReceiver mReceiver;
 
 
         private View.OnClickListener mBackupClickListener = new View.OnClickListener() {
@@ -124,19 +121,17 @@ public class OtherSettingsPage extends SetupPage {
             }
         };
 
-        private View.OnClickListener mGpsClickListener = new View.OnClickListener() {
+        private View.OnClickListener mBatteryClickListener = new View.OnClickListener() {
             @Override
             public void onClick(View view) {
-                Settings.Secure.setLocationProviderEnabled(mContentResolver,
-                        LocationManager.GPS_PROVIDER, !mGps.isChecked());
+                onToggleBatterySaving(!mBattery.isChecked());
             }
         };
 
         private View.OnClickListener mNetworkClickListener = new View.OnClickListener() {
             @Override
             public void onClick(View view) {
-                Settings.Secure.setLocationProviderEnabled(mContentResolver,
-                        LocationManager.NETWORK_PROVIDER, !mNetwork.isChecked());
+                onToggleNetwork(!mNetwork.isChecked());
             }
         };
 
@@ -181,9 +176,9 @@ public class OtherSettingsPage extends SetupPage {
             mLocationRow = mRootView.findViewById(R.id.location);
             mLocationRow.setOnClickListener(mLocationClickListener);
             mLocationAccess = (CheckBox) mRootView.findViewById(R.id.location_checkbox);
-            mGpsRow = mRootView.findViewById(R.id.gps);
-            mGpsRow.setOnClickListener(mGpsClickListener);
-            mGps = (CheckBox) mRootView.findViewById(R.id.gps_checkbox);
+            mBatteryRow = mRootView.findViewById(R.id.battery_saving);
+            mBatteryRow.setOnClickListener(mBatteryClickListener);
+            mBattery = (CheckBox) mRootView.findViewById(R.id.battery_saving_checkbox);
             mNetworkRow = mRootView.findViewById(R.id.network);
             mNetworkRow.setOnClickListener(mNetworkClickListener);
             mNetwork = (CheckBox) mRootView.findViewById(R.id.network_checkbox);
@@ -205,40 +200,22 @@ public class OtherSettingsPage extends SetupPage {
         @Override
         public void onResume() {
             super.onResume();
-            updateLocationToggles();
+            refreshLocationMode();
             updateBackupToggle();
-            if (mSettingsObserver == null) {
-                mSettingsObserver = new Observer() {
-                    public void update(Observable o, Object arg) {
-                        updateLocationToggles();
-                        updateBackupToggle();
-                    }
-                };
-            }
-
-            mContentQueryMap.addObserver(mSettingsObserver);
-        }
-
-        @Override
-        public void onStart() {
-            super.onStart();
-            // listen for Location Manager settings changes
-            Cursor settingsCursor = getActivity().getContentResolver()
-                    .query(Settings.Secure.CONTENT_URI, null,
-                    "(" + Settings.System.NAME + "=?)",
-                    new String[]{Settings.Secure.LOCATION_PROVIDERS_ALLOWED},
-                    null);
-            mContentQueryMap =
-                    new ContentQueryMap(settingsCursor, Settings.System.NAME, true, null);
         }
 
         @Override
-        public void onStop() {
-            super.onStop();
-            if (mSettingsObserver != null) {
-                mContentQueryMap.deleteObserver(mSettingsObserver);
-            }
-            mContentQueryMap.close();
+        public void onCreate(Bundle savedInstanceState) {
+            super.onCreate(savedInstanceState);
+            mReceiver = new BroadcastReceiver() {
+                @Override
+                public void onReceive(Context context, Intent intent) {
+                    if (Log.isLoggable(TAG, Log.DEBUG)) {
+                        Log.d(TAG, "Received location mode change intent: " + intent);
+                    }
+                    refreshLocationMode();
+                }
+            };
         }
 
         private boolean isBackupRestoreEnabled() {
@@ -263,40 +240,108 @@ public class OtherSettingsPage extends SetupPage {
             updateBackupToggle();
         }
 
-        private void updateLocationToggles() {
-            boolean gpsEnabled = Settings.Secure.isLocationProviderEnabled(
-                    mContentResolver, LocationManager.GPS_PROVIDER);
-            boolean networkEnabled = Settings.Secure.isLocationProviderEnabled(
-                    mContentResolver, LocationManager.NETWORK_PROVIDER);
-            mGps.setChecked(gpsEnabled);
-            SetupStats.addEvent(SetupStats.Categories.SETTING_CHANGED,
-                    SetupStats.Action.ENABLE_GPS_LOCATION,
-                    SetupStats.Label.CHECKED, String.valueOf(gpsEnabled));
-            mNetwork.setChecked(networkEnabled);
-            SetupStats.addEvent(SetupStats.Categories.SETTING_CHANGED,
-                    SetupStats.Action.ENABLE_NETWORK_LOCATION,
-                    SetupStats.Label.CHECKED, String.valueOf(networkEnabled));
-            mLocationAccess.setChecked(gpsEnabled || networkEnabled);
-            mGps.setEnabled(gpsEnabled || networkEnabled);
-            mGpsRow.setEnabled(gpsEnabled || networkEnabled);
-            mNetwork.setEnabled(gpsEnabled || networkEnabled);
-            mNetworkRow.setEnabled(gpsEnabled || networkEnabled);
+        private void setLocationMode(int mode) {
+            Intent intent = new Intent(MODE_CHANGING_ACTION);
+            intent.putExtra(CURRENT_MODE_KEY, mCurrentMode);
+            intent.putExtra(NEW_MODE_KEY, mode);
+            getActivity().sendBroadcast(intent, android.Manifest.permission.WRITE_SECURE_SETTINGS);
+            Settings.Secure.putInt(mContentResolver, Settings.Secure.LOCATION_MODE, mode);
+            refreshLocationMode();
+        }
+
+        private void refreshLocationMode() {
+            int mode = Settings.Secure.getInt(mContentResolver, Settings.Secure.LOCATION_MODE,
+                    Settings.Secure.LOCATION_MODE_OFF);
+
+            if (mCurrentMode != mode) {
+                mCurrentMode = mode;
+                if (Log.isLoggable(TAG, Log.INFO)) {
+                    Log.i(TAG, "Location mode has been changed");
+                }
+                updateLocationToggles(mode);
+            }
+        }
+
+        private void updateLocationToggles(int mode) {
+            switch (mode) {
+                case Settings.Secure.LOCATION_MODE_OFF:
+                    mLocationAccess.setChecked(false);
+                    mBattery.setChecked(false);
+                    mBattery.setEnabled(false);
+                    mBatteryRow.setEnabled(false);
+                    mNetwork.setChecked(false);
+                    mNetwork.setEnabled(false);
+                    mNetworkRow.setEnabled(false);
+                    break;
+                case Settings.Secure.LOCATION_MODE_SENSORS_ONLY:
+                    mLocationAccess.setChecked(true);
+                    mBattery.setChecked(false);
+                    mBattery.setEnabled(true);
+                    mBatteryRow.setEnabled(true);
+                    mNetwork.setChecked(false);
+                    mNetwork.setEnabled(true);
+                    mNetworkRow.setEnabled(true);
+                    break;
+                case Settings.Secure.LOCATION_MODE_BATTERY_SAVING:
+                    mLocationAccess.setChecked(true);
+                    mBattery.setChecked(true);
+                    mNetwork.setChecked(false);
+                    mNetwork.setEnabled(false);
+                    mNetworkRow.setEnabled(false);
+                    break;
+                case Settings.Secure.LOCATION_MODE_HIGH_ACCURACY:
+                    mLocationAccess.setChecked(true);
+                    mNetwork.setChecked(true);
+                    mBattery.setChecked(false);
+                    mBattery.setEnabled(false);
+                    mBatteryRow.setEnabled(false);
+                    break;
+                default:
+                    mLocationAccess.setChecked(false);
+                    mBattery.setChecked(false);
+                    mBattery.setEnabled(false);
+                    mBatteryRow.setEnabled(false);
+                    mNetwork.setChecked(false);
+                    mNetwork.setEnabled(false);
+                    mNetworkRow.setEnabled(false);
+                    break;
+            }
         }
 
         private void onToggleLocationAccess(boolean checked) {
             SetupStats.addEvent(SetupStats.Categories.SETTING_CHANGED,
                     SetupStats.Action.ENABLE_LOCATION,
                     SetupStats.Label.CHECKED, String.valueOf(checked));
-            Settings.Secure.setLocationProviderEnabled(mContentResolver,
-                    LocationManager.GPS_PROVIDER, checked);
-            mGps.setEnabled(checked);
-            mGpsRow.setEnabled(checked);
-            Settings.Secure.setLocationProviderEnabled(mContentResolver,
-                    LocationManager.NETWORK_PROVIDER, checked);
-            mNetwork.setEnabled(checked);
-            mNetworkRow.setEnabled(checked);
-            updateLocationToggles();
+
+            if (checked) {
+                setLocationMode(Settings.Secure.LOCATION_MODE_SENSORS_ONLY);
+            } else {
+                setLocationMode(Settings.Secure.LOCATION_MODE_OFF);
+            }
+        }
+
+        private void onToggleBatterySaving(boolean checked) {
+            /* SetupStats.addEvent(SetupStats.Categories.SETTING_CHANGED,
+                    SetupStats.Action.ENABLE_BATTERY_SAVING_LOCATION,
+                    SetupStats.Label.CHECKED, String.valueOf(checked)); */
+
+            if (checked) {
+                setLocationMode(Settings.Secure.LOCATION_MODE_BATTERY_SAVING);
+            } else {
+                setLocationMode(Settings.Secure.LOCATION_MODE_SENSORS_ONLY);
+            }
         }
 
+        private void onToggleNetwork(boolean checked) {
+            SetupStats.addEvent(SetupStats.Categories.SETTING_CHANGED,
+                    SetupStats.Action.ENABLE_NETWORK_LOCATION,
+                    SetupStats.Label.CHECKED, String.valueOf(checked));
+
+            if (checked) {
+                setLocationMode(Settings.Secure.LOCATION_MODE_HIGH_ACCURACY);
+            } else {
+                setLocationMode(Settings.Secure.LOCATION_MODE_SENSORS_ONLY);
+            }
+        }
     }
 }