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/*
* Copyright (C) 2014 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.admin.DevicePolicyManager;
import android.content.Context;
import android.content.Intent;
import android.content.res.Resources;
import android.os.Bundle;
import android.os.UserHandle;
import android.preference.Preference;
import android.preference.Preference.OnPreferenceChangeListener;
import android.preference.PreferenceScreen;
import android.preference.SwitchPreference;
import android.provider.Settings;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Switch;
import com.android.internal.logging.MetricsLogger;
import com.android.internal.widget.LockPatternUtils;
import com.android.settings.search.BaseSearchIndexProvider;
import com.android.settings.search.Indexable;
import com.android.settings.search.SearchIndexableRaw;
import com.android.settings.widget.SwitchBar;
import java.util.ArrayList;
import java.util.List;
/**
* Screen pinning settings.
*/
public class ScreenPinningSettings extends SettingsPreferenceFragment
implements SwitchBar.OnSwitchChangeListener, Indexable {
private static final CharSequence KEY_USE_SCREEN_LOCK = "use_screen_lock";
private static final int CHANGE_LOCK_METHOD_REQUEST = 43;
private SwitchBar mSwitchBar;
private SwitchPreference mUseScreenLock;
private LockPatternUtils mLockPatternUtils;
@Override
protected int getMetricsCategory() {
return MetricsLogger.SCREEN_PINNING;
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
final SettingsActivity activity = (SettingsActivity) getActivity();
mLockPatternUtils = new LockPatternUtils(activity);
View emptyView = LayoutInflater.from(activity)
.inflate(R.layout.screen_pinning_instructions, null);
((ViewGroup) getListView().getParent()).addView(emptyView);
getListView().setEmptyView(emptyView);
mSwitchBar = activity.getSwitchBar();
mSwitchBar.addOnSwitchChangeListener(this);
mSwitchBar.show();
mSwitchBar.setChecked(isLockToAppEnabled(getActivity()));
}
@Override
public void onDestroyView() {
super.onDestroyView();
mSwitchBar.removeOnSwitchChangeListener(this);
mSwitchBar.hide();
}
private static boolean isLockToAppEnabled(Context context) {
return Settings.System.getInt(context.getContentResolver(),
Settings.System.LOCK_TO_APP_ENABLED, 0) != 0;
}
private void setLockToAppEnabled(boolean isEnabled) {
Settings.System.putInt(getContentResolver(), Settings.System.LOCK_TO_APP_ENABLED,
isEnabled ? 1 : 0);
if (isEnabled) {
// Set the value to match what we have defaulted to in the UI.
setScreenLockUsedSetting(isScreenLockUsed());
}
}
private boolean isScreenLockUsed() {
int def = getCurrentSecurityTitle() != R.string.screen_pinning_unlock_none ? 1 : 0;
return Settings.Secure.getInt(getContentResolver(),
Settings.Secure.LOCK_TO_APP_EXIT_LOCKED, def) != 0;
}
private boolean setScreenLockUsed(boolean isEnabled) {
if (isEnabled) {
LockPatternUtils lockPatternUtils = new LockPatternUtils(getActivity());
int passwordQuality = lockPatternUtils
.getKeyguardStoredPasswordQuality(UserHandle.myUserId());
if (passwordQuality == DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) {
Intent chooseLockIntent = new Intent(DevicePolicyManager.ACTION_SET_NEW_PASSWORD);
chooseLockIntent.putExtra(
ChooseLockGeneric.ChooseLockGenericFragment.MINIMUM_QUALITY_KEY,
DevicePolicyManager.PASSWORD_QUALITY_SOMETHING);
startActivityForResult(chooseLockIntent, CHANGE_LOCK_METHOD_REQUEST);
return false;
}
}
setScreenLockUsedSetting(isEnabled);
return true;
}
private void setScreenLockUsedSetting(boolean isEnabled) {
Settings.Secure.putInt(getContentResolver(), Settings.Secure.LOCK_TO_APP_EXIT_LOCKED,
isEnabled ? 1 : 0);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == CHANGE_LOCK_METHOD_REQUEST) {
LockPatternUtils lockPatternUtils = new LockPatternUtils(getActivity());
boolean validPassQuality = lockPatternUtils.getKeyguardStoredPasswordQuality(
UserHandle.myUserId())
!= DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
setScreenLockUsed(validPassQuality);
// Make sure the screen updates.
mUseScreenLock.setChecked(validPassQuality);
}
}
private int getCurrentSecurityTitle() {
int quality = mLockPatternUtils.getKeyguardStoredPasswordQuality(
UserHandle.myUserId());
switch (quality) {
case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC:
case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX:
return R.string.screen_pinning_unlock_pin;
case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC:
case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC:
case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX:
return R.string.screen_pinning_unlock_password;
case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING:
if (mLockPatternUtils.isLockPatternEnabled(UserHandle.myUserId())) {
return R.string.screen_pinning_unlock_pattern;
}
}
return R.string.screen_pinning_unlock_none;
}
/**
* Listens to the state change of the lock-to-app master switch.
*/
@Override
public void onSwitchChanged(Switch switchView, boolean isChecked) {
setLockToAppEnabled(isChecked);
updateDisplay();
}
public void updateDisplay() {
PreferenceScreen root = getPreferenceScreen();
if (root != null) {
root.removeAll();
}
if (isLockToAppEnabled(getActivity())) {
addPreferencesFromResource(R.xml.screen_pinning_settings);
root = getPreferenceScreen();
mUseScreenLock = (SwitchPreference) root.findPreference(KEY_USE_SCREEN_LOCK);
mUseScreenLock.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
@Override
public boolean onPreferenceChange(Preference preference, Object newValue) {
return setScreenLockUsed((boolean) newValue);
}
});
mUseScreenLock.setChecked(isScreenLockUsed());
mUseScreenLock.setTitle(getCurrentSecurityTitle());
}
}
/**
* For search
*/
public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
new BaseSearchIndexProvider() {
@Override
public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) {
final List<SearchIndexableRaw> result = new ArrayList<SearchIndexableRaw>();
final Resources res = context.getResources();
// Add fragment title
SearchIndexableRaw data = new SearchIndexableRaw(context);
data.title = res.getString(R.string.screen_pinning_title);
data.screenTitle = res.getString(R.string.screen_pinning_title);
result.add(data);
if (isLockToAppEnabled(context)) {
// Screen lock option
data = new SearchIndexableRaw(context);
data.title = res.getString(R.string.screen_pinning_unlock_none);
data.screenTitle = res.getString(R.string.screen_pinning_title);
result.add(data);
} else {
// Screen pinning description.
data = new SearchIndexableRaw(context);
data.title = res.getString(R.string.screen_pinning_description);
data.screenTitle = res.getString(R.string.screen_pinning_title);
result.add(data);
}
return result;
}
};
}
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