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/*
* Copyright (C) 2009 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.app.AlertDialog;
import android.app.Dialog;
import android.backup.IBackupManager;
import android.content.ContentResolver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.SharedPreferences;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Bundle;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.preference.CheckBoxPreference;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceScreen;
import android.provider.Settings;
import android.text.method.LinkMovementMethod;
import android.widget.TextView;
/**
* Gesture lock pattern settings.
*/
public class PrivacySettings extends PreferenceActivity implements
DialogInterface.OnDismissListener, DialogInterface.OnClickListener {
private static final String PREFS_NAME = "location_prefs";
private static final String PREFS_USE_LOCATION = "use_location";
// Vendor specific
private static final String GSETTINGS_PROVIDER = "com.google.android.providers.settings";
private static final String LOCATION_CATEGORY = "location_category";
private static final String SETTINGS_CATEGORY = "settings_category";
private static final String USE_LOCATION = "use_location";
private static final String BACKUP_SETTINGS = "backup_settings";
private static final String KEY_DONE_USE_LOCATION = "doneLocation";
private CheckBoxPreference mUseLocation;
private CheckBoxPreference mBackup;
private boolean mOkClicked;
private Dialog mConfirmDialog;
private static final int DIALOG_USE_LOCATION = 1;
private static final int DIALOG_ERASE_BACKUP = 2;
private int mDialogType;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.privacy_settings);
mUseLocation = (CheckBoxPreference) getPreferenceScreen().findPreference(USE_LOCATION);
mBackup = (CheckBoxPreference) getPreferenceScreen().findPreference(BACKUP_SETTINGS);
// Vendor specific
try {
if (mUseLocation != null) {
getPackageManager().getPackageInfo(GSETTINGS_PROVIDER, 0);
}
} catch (NameNotFoundException nnfe) {
getPreferenceScreen().removePreference(findPreference(LOCATION_CATEGORY));
getPreferenceScreen().removePreference(findPreference(SETTINGS_CATEGORY));
}
updateToggles();
boolean doneUseLocation = savedInstanceState == null
? false : savedInstanceState.getBoolean(KEY_DONE_USE_LOCATION, true);
if (!doneUseLocation && (getIntent().getBooleanExtra("SHOW_USE_LOCATION", false)
|| savedInstanceState != null)) {
showUseLocationDialog(true);
}
}
@Override
public void onStop() {
if (mConfirmDialog != null && mConfirmDialog.isShowing()) {
mConfirmDialog.dismiss();
}
mConfirmDialog = null;
mDialogType = 0;
super.onStop();
}
@Override
public void onSaveInstanceState(Bundle icicle) {
if (mConfirmDialog != null && mConfirmDialog.isShowing()
&& mDialogType == DIALOG_USE_LOCATION) {
icicle.putBoolean(KEY_DONE_USE_LOCATION, false);
}
super.onSaveInstanceState(icicle);
}
@Override
public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen,
Preference preference) {
if (preference == mUseLocation) {
//normally called on the toggle click
if (mUseLocation.isChecked()) {
showUseLocationDialog(false);
} else {
updateUseLocation();
}
} else if (preference == mBackup) {
if (!mBackup.isChecked()) {
showEraseBackupDialog();
} else {
setBackupEnabled(true);
}
}
return false;
}
private void showUseLocationDialog(boolean force) {
// Show a warning to the user that location data will be shared
mOkClicked = false;
if (force) {
mUseLocation.setChecked(true);
}
if (hasAgreedToUseLocation()) {
updateUseLocation();
return;
}
mDialogType = DIALOG_USE_LOCATION;
CharSequence msg = getResources().getText(R.string.use_location_warning_message);
mConfirmDialog = new AlertDialog.Builder(this).setMessage(msg)
.setTitle(R.string.use_location_title)
.setIcon(android.R.drawable.ic_dialog_alert)
.setPositiveButton(R.string.agree, this)
.setNegativeButton(R.string.disagree, this)
.show();
((TextView)mConfirmDialog.findViewById(android.R.id.message))
.setMovementMethod(LinkMovementMethod.getInstance());
mConfirmDialog.setOnDismissListener(this);
}
private void showEraseBackupDialog() {
// Show a warning to the user that location data will be shared
mOkClicked = false;
mBackup.setChecked(true);
mDialogType = DIALOG_ERASE_BACKUP;
CharSequence msg = getResources().getText(R.string.backup_erase_dialog_message);
mConfirmDialog = new AlertDialog.Builder(this).setMessage(msg)
.setTitle(R.string.backup_erase_dialog_title)
.setIcon(android.R.drawable.ic_dialog_alert)
.setPositiveButton(android.R.string.ok, this)
.setNegativeButton(android.R.string.cancel, this)
.show();
mConfirmDialog.setOnDismissListener(this);
}
/*
* Creates toggles for each available location provider
*/
private void updateToggles() {
ContentResolver res = getContentResolver();
mUseLocation.setChecked(Settings.Secure.getInt(res,
Settings.Secure.USE_LOCATION_FOR_SERVICES, 2) == 1);
mBackup.setChecked(Settings.Secure.getInt(res,
Settings.Secure.BACKUP_ENABLED, 0) == 1);
}
private void updateUseLocation() {
boolean use = mUseLocation.isChecked();
Settings.Secure.putInt(getContentResolver(),
Settings.Secure.USE_LOCATION_FOR_SERVICES, use ? 1 : 0);
}
public void onClick(DialogInterface dialog, int which) {
if (which == DialogInterface.BUTTON_POSITIVE) {
//updateProviders();
mOkClicked = true;
if (mDialogType == DIALOG_USE_LOCATION) {
setAgreedToUseLocation(true);
} else if (mDialogType == DIALOG_ERASE_BACKUP) {
setBackupEnabled(false);
}
} else {
if (mDialogType == DIALOG_USE_LOCATION) {
// Reset the toggle
mUseLocation.setChecked(false);
} else if (mDialogType == DIALOG_ERASE_BACKUP) {
mBackup.setChecked(true);
}
}
updateUseLocation();
mDialogType = 0;
}
public void onDismiss(DialogInterface dialog) {
// Assuming that onClick gets called first
if (!mOkClicked) {
if (mDialogType == DIALOG_USE_LOCATION) {
mUseLocation.setChecked(false);
}
}
}
/**
* Checks if the user has agreed to the dialog in the past.
*/
private boolean hasAgreedToUseLocation() {
SharedPreferences sp = getSharedPreferences(PREFS_NAME, 0);
if (sp == null) {
return false;
}
return sp.getBoolean(PREFS_USE_LOCATION, false);
}
/**
* Notes that the user has agreed to the dialog and won't need to be prompted in the
* future.
*/
private void setAgreedToUseLocation(boolean agreed) {
if (agreed) {
SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
SharedPreferences.Editor editor = settings.edit();
editor.putBoolean(PREFS_USE_LOCATION, true);
editor.commit();
}
}
/**
* Informs the BackupManager of a change in backup state - if backup is disabled,
* the data on the server will be erased.
* @param enable whether to enable backup
*/
private void setBackupEnabled(boolean enable) {
IBackupManager bm = IBackupManager.Stub.asInterface(
ServiceManager.getService(Context.BACKUP_SERVICE));
if (bm != null) {
try {
bm.setBackupEnabled(enable);
} catch (RemoteException e) {
mBackup.setChecked(!enable);
return;
}
}
mBackup.setChecked(enable);
}
}
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