com.elasticgrid.admin.client.widget.cluster.AddNodeDialog.java Source code

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Here is the source code for com.elasticgrid.admin.client.widget.cluster.AddNodeDialog.java

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/**
 * Elastic Grid
 * Copyright (C) 2008-2010 Elastic Grid, LLC.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.elasticgrid.admin.client.widget.cluster;

import com.extjs.gxt.ui.client.Style.HorizontalAlignment;
import com.extjs.gxt.ui.client.event.ButtonEvent;
import com.extjs.gxt.ui.client.event.ComponentEvent;
import com.extjs.gxt.ui.client.event.KeyListener;
import com.extjs.gxt.ui.client.event.SelectionListener;
import com.extjs.gxt.ui.client.util.IconHelper;
import com.extjs.gxt.ui.client.widget.Dialog;
import com.extjs.gxt.ui.client.widget.Status;
import com.extjs.gxt.ui.client.widget.button.Button;
import com.extjs.gxt.ui.client.widget.form.TextField;
import com.extjs.gxt.ui.client.widget.layout.FormLayout;
import com.extjs.gxt.ui.client.widget.toolbar.FillToolItem;
import com.google.gwt.user.client.Timer;

public class AddNodeDialog extends Dialog {
    protected TextField<String> userName;
    protected TextField<String> password;
    protected Button reset;
    protected Button login;
    protected Status status;

    public AddNodeDialog() {
        FormLayout layout = new FormLayout();
        layout.setLabelWidth(90);
        layout.setDefaultWidth(155);
        setLayout(layout);

        setButtonAlign(HorizontalAlignment.LEFT);
        setButtons("");
        setIcon(IconHelper.createStyle("user"));
        setHeading("Increase cluster size...");
        setModal(true);
        setBodyBorder(true);
        setBodyStyle("padding: 8px;background: none");
        setWidth(300);
        setResizable(false);

        KeyListener keyListener = new KeyListener() {
            public void componentKeyUp(ComponentEvent event) {
                validate();
            }
        };

        userName = new TextField<String>();
        userName.setMinLength(4);
        userName.setFieldLabel("Username");
        userName.addKeyListener(keyListener);
        add(userName);

        password = new TextField<String>();
        password.setMinLength(4);
        password.setPassword(true);
        password.setFieldLabel("Password");
        password.addKeyListener(keyListener);
        add(password);

        setFocusWidget(userName);
    }

    @Override
    protected void createButtons() {
        super.createButtons();
        status = new Status();
        status.setBusy("please wait...");
        status.hide();
        status.setAutoWidth(true);
        getButtonBar().add(status);

        getButtonBar().add(new FillToolItem());

        reset = new Button("Reset");
        reset.addSelectionListener(new SelectionListener<ButtonEvent>() {
            public void componentSelected(ButtonEvent ce) {
                userName.reset();
                password.reset();
                validate();
                userName.focus();
            }

        });

        login = new Button("Login");
        login.disable();
        login.addSelectionListener(new SelectionListener<ButtonEvent>() {
            public void componentSelected(ButtonEvent ce) {
                onSubmit();
            }
        });

        addButton(reset);
        addButton(login);
    }

    protected void onSubmit() {
        status.show();
        getButtonBar().disable();
        Timer t = new Timer() {
            @Override
            public void run() {
                AddNodeDialog.this.hide();
            }
        };
        t.schedule(2000);
    }

    protected boolean hasValue(TextField<String> field) {
        return field.getValue() != null && field.getValue().length() > 0;
    }

    protected void validate() {
        login.setEnabled(hasValue(userName) && hasValue(password) && password.getValue().length() > 3);
    }

}