brtabbed.java

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/*
 * Copyright (C) 2008 Sun Microsystems, Inc. All rights reserved. Use is
 * subject to license terms.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the Lesser GNU General Public License as
 * published by the Free Software Foundation; either version 2 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA.
 */

package org.jdic.web;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.beans.PropertyDescriptor;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.lang.reflect.Method;
import java.net.URL;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.event.ChangeEvent;
import org.jdic.web.BrComponent;
import javax.swing.*;
import javax.swing.event.ChangeListener;
import org.jdic.web.event.BrComponentEvent;
import org.jdic.web.event.BrComponentListener;


/**
 * Tabbed <code>BrBrowser</code> component with ability to navigate the link in 
 * new bad instead of new window
 * @author  uta
 */
class JTabPanel extends JPanel {
    // Variables declaration - do not modify                     
    public javax.swing.JLabel lbAddress;
    public javax.swing.JProgressBar pbDownloadDoc;
    public javax.swing.JButton bnClose;
    // End of variables declaration                   
    protected static ImageIcon ico_close = new ImageIcon(JTabPanel.class.getResource("images/img_close_big.png"));

    @Override
    public Dimension getPreferredSize() {
        return new java.awt.Dimension(180, 16);
    }
    
    public JTabPanel(final BrTabbed tbPane, String stTitle){
        super();

        setBorder(null);
        int orientation = tbPane.getTabbedPane().getTabPlacement();
        int box_orientation = (orientation==JTabbedPane.TOP || orientation==JTabbedPane.BOTTOM)
                    ? BoxLayout.LINE_AXIS
                    : BoxLayout.PAGE_AXIS;
	setLayout( new BoxLayout(this, box_orientation) );
        
        setOpaque(false); 
        
        java.awt.Dimension dm = new java.awt.Dimension(180, 16);        
        java.awt.Dimension dm1 = new java.awt.Dimension((int)dm.getWidth()-16, (int)dm.getHeight());        
        java.awt.Dimension dm2 = new java.awt.Dimension(16, 16);        
        
        setMinimumSize(dm);
        setMaximumSize(dm);
        setPreferredSize(dm);
        
        lbAddress = new javax.swing.JLabel();
        bnClose = new javax.swing.JButton();
        pbDownloadDoc = new javax.swing.JProgressBar(){
            @Override
            protected void paintComponent(Graphics g) {
                super.paintComponent(g);
                g.setColor(Color.BLACK);
                g.drawString(getString(), 0, getHeight()-3);
            }
        };

        stTitle = (null==stTitle ? "(empty)" : stTitle);
        
        pbDownloadDoc.setBorder(BorderFactory.createEmptyBorder(1,0,1,0));
        pbDownloadDoc.setOpaque(false); 
        pbDownloadDoc.setString(stTitle);
        pbDownloadDoc.setMinimumSize(dm1);
        pbDownloadDoc.setMaximumSize(dm1);
        pbDownloadDoc.setPreferredSize(dm1);
        add(pbDownloadDoc); 
        
        lbAddress.setText(stTitle);
        lbAddress.setOpaque(false); 
        lbAddress.setVisible(false);
        lbAddress.setMinimumSize(dm1);
        lbAddress.setMaximumSize(dm1);
        lbAddress.setPreferredSize(dm1);
        add(lbAddress);
        
        bnClose.setIcon(ico_close);
        bnClose.setFocusable(false);
        bnClose.setContentAreaFilled(false);
        bnClose.setBorder(BorderFactory.createEmptyBorder(1,1,1,1));
        bnClose.setBorderPainted(false);
        bnClose.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {                
                tbPane.closePage(
                        tbPane.getTabbedPane().indexOfTabComponent(JTabPanel.this));
            }
        });
        bnClose.setMaximumSize(dm2);
        bnClose.setMinimumSize(dm2);
        bnClose.setPreferredSize(dm2);
        add(bnClose);
        
        //add(lbAddress);
    }
}
public class BrTabbed 
        extends JPanel
        implements ChangeListener,
                   BrComponentListener
{
    protected void init(String stUrl){
        initComponents();
        setupTabLabel(brCurrentPage, stUrl);
        jTabbedPane.addChangeListener(this);
    }
    
    /**
     * Creates new BrTabbed object with a web-page 
     * @param stUrl the String that contains the page URL 
     */
    public BrTabbed(String stUrl) {
        init(stUrl);
    }
    
    /**
     * Creates new BrTabbed object with an empty web-page 
     */
    public BrTabbed() {
        init(null);
    }
    
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        jTabbedPane = new javax.swing.JTabbedPane();
        brCurrentPage = new org.jdic.web.BrComponent();

        jTabbedPane.setTabLayoutPolicy(javax.swing.JTabbedPane.SCROLL_TAB_LAYOUT);

        javax.swing.GroupLayout brCurrentPageLayout = new javax.swing.GroupLayout(brCurrentPage);
        brCurrentPage.setLayout(brCurrentPageLayout);
        brCurrentPageLayout.setHorizontalGroup(
            brCurrentPageLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 295, Short.MAX_VALUE)
        );
        brCurrentPageLayout.setVerticalGroup(
            brCurrentPageLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 175, Short.MAX_VALUE)
        );

        jTabbedPane.addTab("tab1", brCurrentPage);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jTabbedPane, javax.swing.GroupLayout.DEFAULT_SIZE, 300, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jTabbedPane, javax.swing.GroupLayout.DEFAULT_SIZE, 200, Short.MAX_VALUE)
        );
    }// </editor-fold>//GEN-END:initComponents
    
    
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private org.jdic.web.BrComponent brCurrentPage;
    private javax.swing.JTabbedPane jTabbedPane;
    // End of variables declaration//GEN-END:variables
    //private org.jdic.web.BrComponent brCurrentPage;
    
    /**
     * Utility field used by bound properties.
     */
    private java.beans.PropertyChangeSupport propertyChangeSupport =  new java.beans.PropertyChangeSupport(this);
    
    /**
     * Adds a PropertyChangeListener to the listener list.
     * @param ls The listener to add.
     */
    @Override
    public void addPropertyChangeListener(java.beans.PropertyChangeListener ls) {
        propertyChangeSupport.addPropertyChangeListener(ls);
    }

    /**
     * Removes a PropertyChangeListener from the listener list.
     * @param ls The listener to remove.
     */
    @Override
    public void removePropertyChangeListener(java.beans.PropertyChangeListener ls) {
        propertyChangeSupport.removePropertyChangeListener(ls);
    }

    
    /**
     * Getter for property CurrentPage 
     * @return the BrComponent object
     */
    public BrComponent getCurrentPage() {
        return brCurrentPage;
    }

    /**
     * Collection of property names that are long-time-calculated.
     */
    private String longCalculatedProps[] = {"HTML", "XHTML", "sprites"};
    
    /**
     * Collection of property names that don't change while changing of 
     * active HTML page.
     */
    HashSet<String> hsPropNotForReplication = new HashSet<String>(
        Arrays.asList(longCalculatedProps)
    );
    
    /**
     * Setter for property CurrentPage
     * @param brCurrentPage
     */
    public void setCurrentPage(BrComponent _brCurrentPage)  {
        BrComponent oldCurrentPage = brCurrentPage;
        brCurrentPage = _brCurrentPage;
        propertyChangeSupport.firePropertyChange(
                "CurrentPage", 
                oldCurrentPage, 
                brCurrentPage);
        
        try {
            java.beans.BeanInfo bi = java.beans.Introspector.getBeanInfo(
                    brCurrentPage.getClass(), 
                    JComponent.class
            );
            
            for( PropertyDescriptor pd: bi.getPropertyDescriptors() ){
                String name = pd.getName();
                if( hsPropNotForReplication.contains(name) )
                    continue;
                Method id = pd.getReadMethod();
                if(null!=id){
                    //System.out.println(name);                    
                    propertyChangeSupport.firePropertyChange(
                            name, 
                            id.invoke(oldCurrentPage),
                            id.invoke(brCurrentPage));
                }    
            }
        } catch (Exception ex) {
            Logger.getLogger(BrTabbed.class.getName()).log(Level.SEVERE, null, ex);
        } 
    }
    
    public void closePage(int iPageIndex){    
        if( isLastTab() ){
            setURL((String)null);
        } else {
            jTabbedPane.removeTabAt(iPageIndex);
        }    
    }
    
    public void closeCurrentPage(){
        closePage(jTabbedPane.getSelectedIndex());
    }
    
   public void setupTabLabel(final BrComponent brComponent, String stUrl){
        final JTabPanel lb = new JTabPanel(this, stUrl);