PriorityPreference.java

/**
 * Copyright (c) 2013, Redsolution LTD. All rights reserved.
 *
 * This file is part of Xabber project; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License, Version 3.
 *
 * Xabber 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, see http://www.gnu.org/licenses/.
 */
package com.xabber.android.ui.widget;

import android.content.Context;
import android.preference.EditTextPreference;
import android.util.AttributeSet;
import android.widget.Toast;

import com.xabber.android.R;

/**
 * Preference to validate xmpp priority input and to show related hint.
 *
 * @author alexander.ivanov
 */
public class PriorityPreference extends EditTextPreference {

    private final Context context;

    public PriorityPreference(Context context) {
        super(context);
        this.context = context;
    }

    public PriorityPreference(Context context, AttributeSet attrs) {
        super(context, attrs);
        this.context = context;
    }

    public PriorityPreference(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        this.context = context;
    }

    @Override
    protected boolean callChangeListener(Object newValue) {
        try {
            int value = Integer.parseInt((String) newValue);
            if (value < -128 || value > 127)
                throw new NumberFormatException();
        } catch (NumberFormatException e) {
            Toast.makeText(context,
                    context.getString(R.string.account_invalid_priority),
                    Toast.LENGTH_LONG).show();
            return false;
        }
        return super.callChangeListener(newValue);
    }

    @Override
    public void setText(String text) {
        super.setText(text);
        String summary = text;
        try {
            if (Integer.parseInt(text) < 0)
                summary = context.getString(R.string.negative_priotiry_summary,
                        text);
        } catch (NumberFormatException e) {
        }
        setSummary(summary);
    }

}