blob: 7b91b1541525aa92b57a0b2b7fca172c077d15be [file] [log] [blame]
/*
* Copyright (C) 2017 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.security;
import android.content.Context;
import android.os.UserManager;
import android.security.KeyStore;
import android.support.v7.preference.PreferenceScreen;
import com.android.settingslib.RestrictedPreference;
import com.android.settingslib.core.lifecycle.Lifecycle;
import com.android.settingslib.core.lifecycle.LifecycleObserver;
import com.android.settingslib.core.lifecycle.events.OnResume;
public class ResetCredentialsPreferenceController extends RestrictedEncryptionPreferenceController
implements LifecycleObserver, OnResume {
private static final String KEY_RESET_CREDENTIALS = "credentials_reset";
private final KeyStore mKeyStore;
private RestrictedPreference mPreference;
public ResetCredentialsPreferenceController(Context context, Lifecycle lifecycle) {
super(context, UserManager.DISALLOW_CONFIG_CREDENTIALS);
mKeyStore = KeyStore.getInstance();
if (lifecycle != null) {
lifecycle.addObserver(this);
}
}
@Override
public String getPreferenceKey() {
return KEY_RESET_CREDENTIALS;
}
@Override
public void displayPreference(PreferenceScreen screen) {
super.displayPreference(screen);
mPreference = (RestrictedPreference) screen.findPreference(getPreferenceKey());
}
@Override
public void onResume() {
if (mPreference != null && !mPreference.isDisabledByAdmin()) {
mPreference.setEnabled(!mKeyStore.isEmpty());
}
}
}