1 files changed, 193 insertions, 0 deletions
diff --git a/src/com/android/settings/LocationSettings.java b/src/com/android/settings/LocationSettings.java
new file mode 100644
index 0000000..645e6d7
--- /dev/null
+++ b/src/com/android/settings/LocationSettings.java
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+/*
+ * Copyright (C) 2011 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.settings;
+
+
+import android.content.ContentQueryMap;
+import android.content.ContentResolver;
+import android.content.Intent;
+import android.database.Cursor;
+import android.location.LocationManager;
+import android.preference.CheckBoxPreference;
+import android.preference.Preference;
+import android.preference.Preference.OnPreferenceChangeListener;
+import android.preference.PreferenceScreen;
+import android.provider.Settings;
+
+import java.util.Observable;
+import java.util.Observer;
+
+/**
+ * Gesture lock pattern settings.
+ */
+public class LocationSettings extends SettingsPreferenceFragment
+        implements OnPreferenceChangeListener {
+
+    // Location Settings
+    private static final String KEY_LOCATION_NETWORK = "location_network";
+    private static final String KEY_LOCATION_GPS = "location_gps";
+    private static final String KEY_ASSISTED_GPS = "assisted_gps";
+    private static final String KEY_USE_LOCATION = "location_use_for_services";
+
+    private CheckBoxPreference mNetwork;
+    private CheckBoxPreference mGps;
+    private CheckBoxPreference mAssistedGps;
+    private CheckBoxPreference mUseLocation;
+
+    // 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;
+
+    @Override
+    public void onStart() {
+        super.onStart();
+        // listen for Location Manager settings changes
+        Cursor settingsCursor = 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);
+        }
+    }
+
+    private PreferenceScreen createPreferenceHierarchy() {
+        PreferenceScreen root = getPreferenceScreen();
+        if (root != null) {
+            root.removeAll();
+        }
+        addPreferencesFromResource(R.xml.location_settings);
+        root = getPreferenceScreen();
+
+        mNetwork = (CheckBoxPreference) root.findPreference(KEY_LOCATION_NETWORK);
+        mGps = (CheckBoxPreference) root.findPreference(KEY_LOCATION_GPS);
+        mAssistedGps = (CheckBoxPreference) root.findPreference(KEY_ASSISTED_GPS);
+        if (GoogleLocationSettingHelper.isAvailable(getActivity())) {
+            // GSF present, Add setting for 'Use My Location'
+            CheckBoxPreference useLocation = new CheckBoxPreference(getActivity());
+            useLocation.setKey(KEY_USE_LOCATION);
+            useLocation.setTitle(R.string.use_location_title);
+            useLocation.setSummaryOn(R.string.use_location_summary_enabled);
+            useLocation.setSummaryOff(R.string.use_location_summary_disabled);
+            useLocation.setChecked(
+                    GoogleLocationSettingHelper.getUseLocationForServices(getActivity())
+                    == GoogleLocationSettingHelper.USE_LOCATION_FOR_SERVICES_ON);
+            useLocation.setPersistent(false);
+            useLocation.setOnPreferenceChangeListener(this);
+            getPreferenceScreen().addPreference(useLocation);
+            mUseLocation = useLocation;
+        }
+
+        // Change the summary for wifi-only devices
+        if (Utils.isWifiOnly()) {
+            mNetwork.setSummaryOn(R.string.location_neighborhood_level_wifi);
+        }
+
+        return root;
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+
+        // Make sure we reload the preference hierarchy since some of these settings
+        // depend on others...
+        createPreferenceHierarchy();
+        updateLocationToggles();
+
+        if (mSettingsObserver == null) {
+            mSettingsObserver = new Observer() {
+                public void update(Observable o, Object arg) {
+                    updateLocationToggles();
+                }
+            };
+            mContentQueryMap.addObserver(mSettingsObserver);
+        }
+    }
+
+    @Override
+    public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
+
+        if (preference == mNetwork) {
+            Settings.Secure.setLocationProviderEnabled(getContentResolver(),
+                    LocationManager.NETWORK_PROVIDER, mNetwork.isChecked());
+        } else if (preference == mGps) {
+            boolean enabled = mGps.isChecked();
+            Settings.Secure.setLocationProviderEnabled(getContentResolver(),
+                    LocationManager.GPS_PROVIDER, enabled);
+            if (mAssistedGps != null) {
+                mAssistedGps.setEnabled(enabled);
+            }
+        } else if (preference == mAssistedGps) {
+            Settings.Secure.putInt(getContentResolver(), Settings.Secure.ASSISTED_GPS_ENABLED,
+                    mAssistedGps.isChecked() ? 1 : 0);
+        } else {
+            // If we didn't handle it, let preferences handle it.
+            return super.onPreferenceTreeClick(preferenceScreen, preference);
+        }
+
+        return true;
+    }
+
+    /*
+     * Creates toggles for each available location provider
+     */
+    private void updateLocationToggles() {
+        ContentResolver res = getContentResolver();
+        boolean gpsEnabled = Settings.Secure.isLocationProviderEnabled(
+                res, LocationManager.GPS_PROVIDER);
+        mNetwork.setChecked(Settings.Secure.isLocationProviderEnabled(
+                res, LocationManager.NETWORK_PROVIDER));
+        mGps.setChecked(gpsEnabled);
+        if (mAssistedGps != null) {
+            mAssistedGps.setChecked(Settings.Secure.getInt(res,
+                    Settings.Secure.ASSISTED_GPS_ENABLED, 2) == 1);
+            mAssistedGps.setEnabled(gpsEnabled);
+        }
+    }
+
+    /**
+     * see confirmPatternThenDisableAndClear
+     */
+    @Override
+    public void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+        createPreferenceHierarchy();
+    }
+
+    public boolean onPreferenceChange(Preference preference, Object value) {
+        if (preference == mUseLocation) {
+            boolean newValue = (value == null ? false : (Boolean) value);
+            GoogleLocationSettingHelper.setUseLocationForServices(getActivity(), newValue);
+            // We don't want to change the value immediately here, since the user may click
+            // disagree in the dialog that pops up. When the activity we just launched exits, this
+            // activity will be restated and the new value re-read, so the checkbox will get its
+            // new value then.
+            return false;
+        }
+        return true;
+    }
+}