/*
 * Hedgewars, a free turn based strategy game
 * Copyright (C) 2012 Simeon Maxein <smaxein@googlemail.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

package org.hedgewars.hedgeroid;

import org.hedgewars.hedgeroid.netplay.Netplay;
import org.hedgewars.hedgeroid.netplay.Netplay.State;

import android.app.Dialog;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.support.v4.app.DialogFragment;
import android.support.v4.content.LocalBroadcastManager;

/**
 * Helper class for DialogFragments that are supposed to be dismissed when the
 * network connection is lost. This is used for some dialog fragments that
 * appear during connecting (e.g. username input)
 */
public class ConnectionDependendDialogFragment extends DialogFragment {
	@Override
	public void onStart() {
		super.onStart();
		LocalBroadcastManager.getInstance(getActivity().getApplicationContext()).registerReceiver(dismissReceiver, new IntentFilter(Netplay.ACTION_DISCONNECTED));
		if(Netplay.getAppInstance(getActivity().getApplicationContext()).getState() == State.NOT_CONNECTED) {
			dismiss();
		}
	}
	
	@Override
	public void onStop() {
		super.onStop();
		LocalBroadcastManager.getInstance(getActivity().getApplicationContext()).unregisterReceiver(dismissReceiver);
	}
	
	private BroadcastReceiver dismissReceiver = new BroadcastReceiver() {
		@Override
		public void onReceive(Context context, Intent intent) {
			Dialog dialog = getDialog();
			if(dialog != null) {
				dialog.dismiss();
			} else {
				dismiss();
			}
		}
	};
}