org.mobicents.slee.container.management.console.client.common.SmartTabPanel.java Source code

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Here is the source code for org.mobicents.slee.container.management.console.client.common.SmartTabPanel.java

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/*
 * JBoss, Home of Professional Open Source
 * Copyright 2003-2011, Red Hat, Inc. and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.mobicents.slee.container.management.console.client.common;

import java.util.ArrayList;

import org.mobicents.slee.container.management.console.client.common.SmartTabPage.SmartTabPageInfo;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.ui.FlexTable;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Hyperlink;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;

/**
 * 
 * @author <a href="mailto:brainslog@gmail.com"> Alexandre Mendonca </a>
 */
public class SmartTabPanel extends HorizontalPanel {

    private class TabsPanel extends VerticalPanel implements ClickHandler {

        private int selectedItem = -1;

        private SmartTabPanel parent;

        private FlexTable links = new FlexTable();

        private int linkCount = 0;

        public TabsPanel(SmartTabPanel parent) {
            this.parent = parent;

            setWidth("100%");
            setHeight("100%");

            setStyleName("common-SmartTabPanel-Menu");

            HTML highPadding = new HTML();
            highPadding.setHeight("30px");

            links.setCellPadding(2);
            links.setCellSpacing(5);

            Label lowPadding = new Label(" ");

            add(highPadding);
            add(links);
            add(lowPadding);

            setCellHeight(lowPadding, "100%");
        }

        @SuppressWarnings("deprecation") // GWT 1.x vs 2.x
        public void add(SmartTabPageInfo page) {

            Hyperlink link = new Hyperlink(page.getTabText(), true, page.getTabText());

            link.setStyleName("common-SmartTabPanel-Menu-Item-unselected");
            link.addStyleName("common-SmartTabPanel-Menu-Link");
            link.addClickHandler(this);

            links.setWidget(linkCount, 0, link);
            links.getCellFormatter().setWordWrap(linkCount, 0, false);
            linkCount++;
        }

        public void selectTab(int pos) {
            if (pos < 0 || pos >= linkCount)
                return;

            if (selectedItem != -1) {
                Widget oldSelectedLink = links.getWidget(selectedItem, 0);
                oldSelectedLink.removeStyleName("common-SmartTabPanel-Menu-Item-selected");
                oldSelectedLink.addStyleName("common-SmartTabPanel-Menu-Item-unselected");
            }

            Hyperlink newSelectedLink = (Hyperlink) links.getWidget(pos, 0);
            newSelectedLink.removeStyleName("common-SmartTabPanel-Menu-Item-unselected");
            newSelectedLink.addStyleName("common-SmartTabPanel-Menu-Item-selected");

            selectedItem = pos;
        }

        //public void onClick(Widget sender) {
        //}

        public void onClick(ClickEvent event) {
            for (int i = 0; i < linkCount; i++) {
                if (links.getWidget(i, 0) == event.getSource()) {
                    parent.openPage(i);
                    return;
                }
            }
        }
    }

    private class MainPanel extends VerticalPanel {

        private Label title = new Label();
        VerticalPanel dummyPanel = new VerticalPanel();
        VerticalPanel dummyPanel2 = new VerticalPanel();
        private SmartTabPage content;

        public MainPanel(SmartTabPanel parent) {
            setHeight("100%");
            setWidth("100%");

            setStyleName("common-SmartTabPanel");

            title.setText("");
            title.setStyleName("common-SmartTabPanel-Title");
            title.setHeight("19px");
            add(title);

            dummyPanel.setWidth("100%");
            dummyPanel.setHeight("100%");
            dummyPanel.setSpacing(5);
            add(dummyPanel);
            setCellHeight(dummyPanel, "100%");
            setCellWidth(dummyPanel, "100%");

            dummyPanel2.setWidth("100%");
            dummyPanel2.setHeight("100%");
            dummyPanel2.setSpacing(5);
            dummyPanel2.setStyleName("common-SmartTabPanel-Content");
            dummyPanel.add(dummyPanel2);
            dummyPanel.setCellHeight(dummyPanel2, "100%");
            dummyPanel.setCellWidth(dummyPanel2, "100%");
        }

        public void showPage(SmartTabPageInfo page) {
            title.setText(page.getTitle());

            if (content != null)
                content.onHide();

            try {
                dummyPanel2.remove(content);
            } catch (Exception e) {
            }

            content = page.getInstance();
            dummyPanel2.add(content);

            content.onShow();
        }
    }

    private ArrayList<SmartTabPageInfo> pages = new ArrayList<SmartTabPageInfo>();

    private TabsPanel tabsPanel;
    private MainPanel mainPanel;

    public SmartTabPanel() {

        tabsPanel = new TabsPanel(this);
        mainPanel = new MainPanel(this);

        add(tabsPanel);
        add(mainPanel);

        setWidth("100%");
        setHeight("100%");

        setCellWidth(mainPanel, "100%");
        setCellHeight(mainPanel, "100%");
    }

    public void add(SmartTabPageInfo page) {
        pages.add(page);
        tabsPanel.add(page);

        if (pages.size() == 1)
            openPage(0);
    }

    public void openPage(int i) {
        SmartTabPageInfo page = (SmartTabPageInfo) pages.get(i);

        tabsPanel.selectTab(i);
        mainPanel.showPage(page);
    }
}