com.cachirulop.moneybox.common.PromptDialog.java Source code

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Here is the source code for com.cachirulop.moneybox.common.PromptDialog.java

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/*******************************************************************************
 *   Copyright (c) 2012 David Magro Martin.
 *   All rights reserved. This program and the accompanying materials
 *   are made available under the terms of the GNU Public License v3.0
 *   which accompanies this distribution, and is available at
 *   http://www.gnu.org/licenses/gpl.html
 *   
 * Contributors:
 *       David Magro Martin
 *******************************************************************************/

package com.cachirulop.moneybox.common;

import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import com.cachirulop.moneybox.R;

/**
 * helper for Prompt-Dialog creation
 */
public abstract class PromptDialog extends DialogFragment implements View.OnClickListener {
    private EditText _input;
    private int _titleId;
    private int _messageId;

    public PromptDialog(int titleId, int messageId) {
        super();

        _titleId = titleId;
        _messageId = messageId;
    }

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        AlertDialog.Builder builder;

        _input = new EditText(getActivity());

        builder = new AlertDialog.Builder(getActivity());
        builder.setTitle(_titleId);
        builder.setMessage(_messageId);
        builder.setView(_input);

        builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
                // Do nothing here because we
                // override this button later to
                // change the close behaviour.
                // However, we still need this
                // because on older versions of
                // Android unless we
                // pass a handler the button doesn't
                // get instantiated
            }
        });

        builder.setNegativeButton(android.R.string.cancel, null);

        return builder.create();
    }

    @Override
    public void onStart() {
        super.onStart();

        AlertDialog dialog;

        dialog = (AlertDialog) getDialog();
        if (dialog != null) {
            Button positive;

            positive = (Button) dialog.getButton(Dialog.BUTTON_POSITIVE);

            positive.setOnClickListener(this);
        }
    }

    public void onClick(View v) {
        String txt;

        txt = _input.getText().toString();
        if (txt.trim().equals("")) {
            Toast t;

            t = Toast.makeText(getActivity(), R.string.empty_text_not_allowed, Toast.LENGTH_LONG);
            t.show();
        } else {
            if (onOkClicked(txt)) {
                ((AlertDialog) getDialog()).dismiss();
            }
        }
    }

    /**
     * called when "ok" pressed.
     * 
     * @param input
     * @return true, if the dialog should be closed. false, if not.
     */
    abstract public boolean onOkClicked(String input);
}