ConfirmDialogFragment.java

/**
 *  Copyright (C) 2012   The FreeCol-Android Team
 *
 *  This file is part of FreeCol-Android.
 *
 *  FreeCol-Android 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.
 *
 *  FreeCol 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 FreeCol-Android.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.freecolandroid.ui;

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicBoolean;

import net.sf.freecol.client.gui.i18n.Messages;

import org.freecolandroid.R;
import org.freecolandroid.debug.FCLog;

import android.app.Dialog;
import android.app.FragmentManager;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

public class ConfirmDialogFragment extends FreeColDialogFragment {

    private static final String KEY_MESSAGE = "message";

    private static final String KEY_POSITIVE = "positive";

    private static final String KEY_NEGATIVE = "negative";

    private DialogListener mListener;

    private boolean mDialogCanceled = true;

    public static ConfirmDialogFragment newInstance(String message, String positiveText,
            String negativeText) {
        ConfirmDialogFragment d = new ConfirmDialogFragment();
        Bundle args = new Bundle();
        args.putString(KEY_MESSAGE, message);
        args.putString(KEY_POSITIVE, positiveText);
        args.putString(KEY_NEGATIVE, negativeText);
        d.setArguments(args);
        return d;
    }

    public static boolean showDialogAndWaitForResult(FragmentManager fragmentManager,
            String message, String positiveText, String negativeText) {
        final CountDownLatch latch = new CountDownLatch(1);
        final AtomicBoolean result = new AtomicBoolean(false);
        ConfirmDialogFragment dialog = newInstance(message, positiveText, negativeText);
        dialog.setListener(new DialogListener() {

            @Override
            public void onResult(boolean res) {
                result.set(res);
                latch.countDown();
            }
        });
        dialog.show(fragmentManager, "");
        try {
            FCLog.log("Dialog - starting to wait for result");
            latch.await();
            FCLog.log("Dialog - finshed waiting for result");
        } catch (InterruptedException e) {
            result.set(false);
        }
        return result.get();
    }

    public void setListener(DialogListener listener) {
        mListener = listener;
    }

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        Bundle args = getArguments();
        Dialog d = new Dialog(getActivity(), R.style.GameMenu);
        d.setContentView(R.layout.frag_dialog_alert);
        // d.setOnDismissListener(new OnDismissListener() {
        //
        // @Override
        // public void onDismiss(DialogInterface dialog) {
        // if (mDialogCanceled) {
        // FCLog.log("Dialog - canceled");
        // mListener.onResult(false);
        // }
        // }
        // });
        d.setCancelable(false);

        TextView message = (TextView) d.findViewById(R.id.message);
        message.setText(Messages.message(args.getString(KEY_MESSAGE)));

        Button btn = (Button) d.findViewById(R.id.positive);
        btn.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                FCLog.log("Dialog - positive selected");
                mDialogCanceled = false;
                mListener.onResult(true);
                dismiss();
            }
        });
        btn.setText(Messages.message(args.getString(KEY_POSITIVE)));
        btn = (Button) d.findViewById(R.id.negative);
        btn.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                FCLog.log("Dialog - negative selected");
                mDialogCanceled = false;
                mListener.onResult(false);
                dismiss();
            }
        });
        btn.setText(Messages.message(args.getString(KEY_NEGATIVE)));
        return d;
    }

    private interface DialogListener {

        void onResult(boolean result);

    }

}