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/*
* Copyright (C) 2013 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.systemui.settings;
import android.app.ActivityManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.UserHandle;
public abstract class CurrentUserTracker extends BroadcastReceiver {
private Context mContext;
private int mCurrentUserId;
public CurrentUserTracker(Context context) {
mContext = context;
}
public int getCurrentUserId() {
return mCurrentUserId;
}
@Override
public void onReceive(Context context, Intent intent) {
if (Intent.ACTION_USER_SWITCHED.equals(intent.getAction())) {
int oldUserId = mCurrentUserId;
mCurrentUserId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0);
if (oldUserId != mCurrentUserId) {
onUserSwitched(mCurrentUserId);
}
}
}
public void startTracking() {
mCurrentUserId = ActivityManager.getCurrentUser();
IntentFilter filter = new IntentFilter(Intent.ACTION_USER_SWITCHED);
mContext.registerReceiver(this, filter);
}
public void stopTracking() {
mContext.unregisterReceiver(this);
}
public abstract void onUserSwitched(int newUserId);
public boolean isCurrentUserOwner() {
return mCurrentUserId == UserHandle.USER_OWNER;
}
}
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