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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 com.android.internal.logging.MetricsLogger;
import com.android.internal.widget.LockPatternUtils;
import com.android.settings.R;
import com.android.settings.SettingsActivity;
import com.android.settings.SettingsPreferenceFragment;
import java.util.List;
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.DialogInterface.OnClickListener;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.accessibility.AccessibilityManager;
import android.widget.RadioButton;
import android.widget.TextView;
public class EncryptionInterstitial extends SettingsActivity {
protected static final String EXTRA_PASSWORD_QUALITY = "extra_password_quality";
public static final String EXTRA_REQUIRE_PASSWORD = "extra_require_password";
@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) {
return new Intent(ctx, EncryptionInterstitial.class)
.putExtra(EXTRA_PREFS_SHOW_BUTTON_BAR, true)
.putExtra(EXTRA_PREFS_SET_BACK_TEXT, (String) null)
.putExtra(EXTRA_PREFS_SET_NEXT_TEXT, ctx.getString(
R.string.encryption_continue_button))
.putExtra(EXTRA_PASSWORD_QUALITY, quality)
.putExtra(EXTRA_SHOW_FRAGMENT_TITLE_RESID, R.string.encryption_interstitial_header)
.putExtra(EXTRA_REQUIRE_PASSWORD, requirePasswordDefault);
}
public static class EncryptionInterstitialFragment extends SettingsPreferenceFragment
implements View.OnClickListener, OnClickListener {
private static final int ACCESSIBILITY_WARNING_DIALOG = 1;
private RadioButton mRequirePasswordToDecryptButton;
private RadioButton mDontRequirePasswordToDecryptButton;
private TextView mEncryptionMessage;
private boolean mPasswordRequired;
@Override
protected int getMetricsCategory() {
return MetricsLogger.ENCRYPTION;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
final int layoutId = R.layout.encryption_interstitial;
View view = inflater.inflate(layoutId, container, false);
mRequirePasswordToDecryptButton =
(RadioButton) view.findViewById(R.id.encrypt_require_password);
mDontRequirePasswordToDecryptButton =
(RadioButton) view.findViewById(R.id.encrypt_dont_require_password);
mEncryptionMessage =
(TextView) view.findViewById(R.id.encryption_message);
int quality = getActivity().getIntent().getIntExtra(EXTRA_PASSWORD_QUALITY, 0);
final int msgId;
final int enableId;
final int disableId;
switch (quality) {
case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING:
msgId = 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 = R.string.encryption_interstitial_message_pin;
enableId = R.string.encrypt_require_pin;
disableId = R.string.encrypt_dont_require_pin;
break;
default:
msgId = R.string.encryption_interstitial_message_password;
enableId = R.string.encrypt_require_password;
disableId = R.string.encrypt_dont_require_password;
break;
}
mEncryptionMessage.setText(msgId);
mRequirePasswordToDecryptButton.setOnClickListener(this);
mRequirePasswordToDecryptButton.setText(enableId);
mDontRequirePasswordToDecryptButton.setOnClickListener(this);
mDontRequirePasswordToDecryptButton.setText(disableId);
setRequirePasswordState(getActivity().getIntent().getBooleanExtra(
EXTRA_REQUIRE_PASSWORD, true));
return view;
}
@Override
public void onClick(View v) {
if (v == mRequirePasswordToDecryptButton) {
final boolean accEn = AccessibilityManager.getInstance(getActivity()).isEnabled();
if (accEn && !mPasswordRequired) {
setRequirePasswordState(false); // clear the UI state
showDialog(ACCESSIBILITY_WARNING_DIALOG);
} else {
setRequirePasswordState(true);
}
} else {
setRequirePasswordState(false);
}
}
@Override
public Dialog onCreateDialog(int dialogId) {
switch(dialogId) {
case ACCESSIBILITY_WARNING_DIALOG: {
final int quality = new LockPatternUtils(getActivity())
.getKeyguardStoredPasswordQuality();
final int titleId;
final int messageId;
switch (quality) {
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;
mRequirePasswordToDecryptButton.setChecked(required);
mDontRequirePasswordToDecryptButton.setChecked(!required);
// Updates value returned by SettingsActivity.onActivityResult().
SettingsActivity sa = (SettingsActivity)getActivity();
Intent resultIntentData = sa.getResultIntentData();
if (resultIntentData == null) {
resultIntentData = new Intent();
sa.setResultIntentData(resultIntentData);
}
resultIntentData.putExtra(EXTRA_REQUIRE_PASSWORD, mPasswordRequired);
}
@Override
public void onClick(DialogInterface dialog, int which) {
if (which == DialogInterface.BUTTON_POSITIVE) {
setRequirePasswordState(true);
} else if (which == DialogInterface.BUTTON_NEGATIVE) {
setRequirePasswordState(false);
}
}
}
}
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