/*
* 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.accessibilityservice.AccessibilityServiceInfo;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.admin.DevicePolicyManager;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.res.Resources;
import android.os.Bundle;
import android.support.v7.preference.Preference;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.accessibility.AccessibilityManager;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.android.internal.logging.MetricsProto.MetricsEvent;
import com.android.settings.utils.SettingsDividerItemDecoration;
import com.android.setupwizardlib.GlifPreferenceLayout;
import java.util.List;
public class EncryptionInterstitial extends SettingsActivity {
private static final String TAG = EncryptionInterstitial.class.getSimpleName();
protected static final String EXTRA_PASSWORD_QUALITY = "extra_password_quality";
protected static final String EXTRA_UNLOCK_METHOD_INTENT = "extra_unlock_method_intent";
public static final String EXTRA_REQUIRE_PASSWORD = "extra_require_password";
private static final int CHOOSE_LOCK_REQUEST = 100;
@Override
public Intent getIntent() {
Intent modIntent = new Intent(super.getIntent());
modIntent.putExtra(EXTRA_SHOW_FRAGMENT, EncryptionInterstitialFragment.class.getName());
return modIntent;
}
@Override
protected boolean isValidFragment(String fragmentName) {
return EncryptionInterstitialFragment.class.getName().equals(fragmentName);
}
public static Intent createStartIntent(Context ctx, int quality,
boolean requirePasswordDefault, Intent unlockMethodIntent) {
return new Intent(ctx, EncryptionInterstitial.class)
.putExtra(EXTRA_PASSWORD_QUALITY, quality)
.putExtra(EXTRA_SHOW_FRAGMENT_TITLE_RESID, R.string.encryption_interstitial_header)
.putExtra(EXTRA_REQUIRE_PASSWORD, requirePasswordDefault)
.putExtra(EXTRA_UNLOCK_METHOD_INTENT, unlockMethodIntent);
}
@Override
protected void onCreate(Bundle savedInstance) {
super.onCreate(savedInstance);
LinearLayout layout = (LinearLayout) findViewById(R.id.content_parent);
layout.setFitsSystemWindows(false);
}
public static class EncryptionInterstitialFragment extends SettingsPreferenceFragment
implements DialogInterface.OnClickListener {
private static final int ACCESSIBILITY_WARNING_DIALOG = 1;
private static final String KEY_ENCRYPT_REQUIRE_PASSWORD = "encrypt_require_password";
private static final String KEY_ENCRYPT_DONT_REQUIRE_PASSWORD =
"encrypt_dont_require_password";
private Preference mRequirePasswordToDecrypt;
private Preference mDontRequirePasswordToDecrypt;
private boolean mPasswordRequired;
private Intent mUnlockMethodIntent;
private int mRequestedPasswordQuality;
@Override
protected int getMetricsCategory() {
return MetricsEvent.ENCRYPTION;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.security_settings_encryption_interstitial);
// Used for testing purposes
findPreference(KEY_ENCRYPT_DONT_REQUIRE_PASSWORD)
.setViewId(R.id.encrypt_dont_require_password);
mRequirePasswordToDecrypt = findPreference(KEY_ENCRYPT_REQUIRE_PASSWORD);
mDontRequirePasswordToDecrypt = findPreference(KEY_ENCRYPT_DONT_REQUIRE_PASSWORD);
boolean forFingerprint = getActivity().getIntent().getBooleanExtra(
ChooseLockSettingsHelper.EXTRA_KEY_FOR_FINGERPRINT, false);
Intent intent = getActivity().getIntent();
mRequestedPasswordQuality = intent.getIntExtra(EXTRA_PASSWORD_QUALITY, 0);
mUnlockMethodIntent = intent.getParcelableExtra(EXTRA_UNLOCK_METHOD_INTENT);
final int msgId;
final int enableId;
final int disableId;
switch (mRequestedPasswordQuality) {
case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING:
msgId = forFingerprint ?
R.string.encryption_interstitial_message_pattern_for_fingerprint :
R.string.encryption_interstitial_message_pattern;
enableId = R.string.encrypt_require_pattern;
disableId = R.string.encrypt_dont_require_pattern;
break;
case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC:
case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX:
msgId = forFingerprint ?
R.string.encryption_interstitial_message_pin_for_fingerprint :
R.string.encryption_interstitial_message_pin;
enableId = R.string.encrypt_require_pin;
disableId = R.string.encrypt_dont_require_pin;
break;
default:
msgId = forFingerprint ?
R.string.encryption_interstitial_message_password_for_fingerprint :
R.string.encryption_interstitial_message_password;
enableId = R.string.encrypt_require_password;
disableId = R.string.encrypt_dont_require_password;
break;
}
TextView message = (TextView) LayoutInflater.from(getActivity()).inflate(
R.layout.encryption_interstitial_header, null, false);
message.setText(msgId);
setHeaderView(message);
mRequirePasswordToDecrypt.setTitle(enableId);
mDontRequirePasswordToDecrypt.setTitle(disableId);
setRequirePasswordState(getActivity().getIntent().getBooleanExtra(
EXTRA_REQUIRE_PASSWORD, true));
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
GlifPreferenceLayout layout = (GlifPreferenceLayout) view;
layout.setDividerItemDecoration(new SettingsDividerItemDecoration(getContext()));
layout.setIcon(getContext().getDrawable(R.drawable.ic_lock));
layout.setHeaderText(getActivity().getTitle());
// Use the dividers in SetupWizardRecyclerLayout. Suppress the dividers in
// PreferenceFragment.
setDivider(null);
}
@Override
public RecyclerView onCreateRecyclerView(LayoutInflater inflater, ViewGroup parent,
Bundle savedInstanceState) {
GlifPreferenceLayout layout = (GlifPreferenceLayout) parent;
return layout.onCreateRecyclerView(inflater, parent, savedInstanceState);
}
protected void startLockIntent() {
if (mUnlockMethodIntent != null) {
mUnlockMethodIntent.putExtra(EXTRA_REQUIRE_PASSWORD, mPasswordRequired);
startActivityForResult(mUnlockMethodIntent, CHOOSE_LOCK_REQUEST);
} else {
Log.wtf(TAG, "no unlock intent to start");
finish();
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == CHOOSE_LOCK_REQUEST && resultCode != RESULT_CANCELED) {
getActivity().setResult(resultCode, data);
finish();
}
}
@Override
public boolean onPreferenceTreeClick(Preference preference) {
final String key = preference.getKey();
if (key.equals(KEY_ENCRYPT_REQUIRE_PASSWORD)) {
final boolean accEn = AccessibilityManager.getInstance(getActivity()).isEnabled();
if (accEn && !mPasswordRequired) {
setRequirePasswordState(false); // clear the UI state
showDialog(ACCESSIBILITY_WARNING_DIALOG);
} else {
setRequirePasswordState(true);
startLockIntent();
}
} else {
setRequirePasswordState(false);
startLockIntent();
}
return true;
}
@Override
public Dialog onCreateDialog(int dialogId) {
switch(dialogId) {
case ACCESSIBILITY_WARNING_DIALOG: {
final int titleId;
final int messageId;
switch (mRequestedPasswordQuality) {
case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING:
titleId = R.string.encrypt_talkback_dialog_require_pattern;
messageId = R.string.encrypt_talkback_dialog_message_pattern;
break;
case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC:
case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX:
titleId = R.string.encrypt_talkback_dialog_require_pin;
messageId = R.string.encrypt_talkback_dialog_message_pin;
break;
default:
titleId = R.string.encrypt_talkback_dialog_require_password;
messageId = R.string.encrypt_talkback_dialog_message_password;
break;
}
List<AccessibilityServiceInfo> list =
AccessibilityManager.getInstance(getActivity())
.getEnabledAccessibilityServiceList(
AccessibilityServiceInfo.FEEDBACK_ALL_MASK);
final CharSequence exampleAccessibility;
if (list.isEmpty()) {
// This should never happen. But we shouldn't crash
exampleAccessibility = "";
} else {
exampleAccessibility = list.get(0).getResolveInfo()
.loadLabel(getPackageManager());
}
return new AlertDialog.Builder(getActivity())
.setTitle(titleId)
.setMessage(getString(messageId, exampleAccessibility))
.setCancelable(true)
.setPositiveButton(android.R.string.ok, this)
.setNegativeButton(android.R.string.cancel, this)
.create();
}
default: throw new IllegalArgumentException();
}
}
private void setRequirePasswordState(boolean required) {
mPasswordRequired = required;
}
@Override
public void onClick(DialogInterface dialog, int which) {
if (which == DialogInterface.BUTTON_POSITIVE) {
setRequirePasswordState(true);
startLockIntent();
} else if (which == DialogInterface.BUTTON_NEGATIVE) {
setRequirePasswordState(false);
}
}
}
}