All About making your own web browser

[Frank Senkrovich]

Seeing Different videos on the net and reading basic books about Java I managed to create a basic web browser but the problem was that I couldn't translate the web pages as they are presented in google chrome for example and when I was pressing the google button in order to search for something it turned to do nothing except an annoying voice like beeep.How can I solve this problem.Thank you all in advance and most of you I
thank this forum that have helped me many times in the past . Code is below:

package javagui.views;

import java.awt.AWTEvent;


public class ReadFileMain extends JFrame {

	private JPanel contentPane;
	private JTextField addressBar;
	private JEditorPane display;
	private String HoldPreviousURL;
	private String HoldCurrentURL,CorrectURL;
	public String[] UrlStrings;
	public List<String> list1 = new ArrayList<String>();
	public int i=0;
	//private MouseListener mouseListener;
	public static int k=0;
	public static int p=-1;
	public String Common = "";
	public String Home = "http://google.com";
	public JTextField jtf;
	private JPopupMenu Pmenu;
	public JMenuItem menuItem;
	private JButton Bck;
	private JButton Fwd;
	private JButton btnHome;
	private JTextField txtHome;
	public static JProgressBar progressBar = new JProgressBar();
	private int value;
	private JButton btnStart;
	public static int Enab = 0;
	public static int i1 = 0;
	public static int i2 = 0;
	public static int i3 = 0;
	public static int i4 = 0;
	public static int i5 = 0;
	public static int i6 = 0;
	public static int i7 = 0;
	public static int life;
	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		try {
			UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
		} catch (Throwable e) {
			e.printStackTrace();
		}
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					ReadFileMain frame = new ReadFileMain();
					frame.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	/**
	 * Create the frame.
	 */
	public ReadFileMain() {
		setIconImage(Toolkit.getDefaultToolkit().getImage(ReadFileMain.class.getResource("/javagui/resources/img16x16/16x16-Gear.jpg")));
		setBackground(new Color(0, 102, 0));
		setTitle("PetroS Browser");
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setBounds(100, 100, 765, 498);
		HandClass2 Handler2 = new HandClass2();
		JMenuBar menuBar = new JMenuBar();
		setJMenuBar(menuBar);
		
		JMenu mnNew = new JMenu("New");
		menuBar.add(mnNew);
		
		JMenuItem mntmNewTab = new JMenuItem("New Tab");
		mnNew.add(mntmNewTab);
		
		JMenuItem mntmCloseInstance = new JMenuItem("Close Instance");
		mntmCloseInstance.addActionListener(Handler2);
		mnNew.add(mntmCloseInstance);
		contentPane = new JPanel();
		contentPane.setBackground(new Color(0, 0, 0));
		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
		setContentPane(contentPane);
		
		addressBar = new JTextField("enter a URL !");
		addressBar.setColumns(10);
		
		addressBar.selectAll();
		
		addressBar.addActionListener(
				new ActionListener(){
					public void actionPerformed(ActionEvent event){
						k=1;
						CorrectURL=event.getActionCommand();
						p++;
						progressBar.setValue(0);
						if(CorrectURL.startsWith("http://")){
							Common = loadCrap(CorrectURL);
						}
						else{
						    Common = loadCrap("http://" + event.getActionCommand());
						}
					}
				}	
			);
		MouseEvent1 mouseListener1 = new MouseEvent1();
		addressBar.addMouseListener(mouseListener1);
		MouseEvent2 mouseListener2 = new MouseEvent2();
		/*display.invalidate();
		jScrollPane.validate();
		scrollBar.setValue(scrollBar.getMaximum() - scrollBar.getVisibleAmount());*/
		//getContentPane().add(new JScrollPane(display));
		//setSize(774,451);
		//setVisible(true);
		btnHome = new JButton("");
		btnHome.setIcon(new ImageIcon(ReadFileMain.class.getResource("/javagui/resources/img16x16/16x16-home-icon.png")));
		
		Bck = new JButton("");
		Bck.setIcon(new ImageIcon(ReadFileMain.class.getResource("/javagui/resources/img16x16/16x16-Arrow-back.png")));
		
		Fwd = new JButton("");
		Fwd.setIcon(new ImageIcon(ReadFileMain.class.getResource("/javagui/resources/img16x16/16x16-Arrow forward.png")));
		
		JScrollPane scrollPane = new JScrollPane();
		
		txtHome = new JTextField();
		txtHome.setBackground(new Color(51, 51, 51));
		txtHome.setText("Home:");
		txtHome.setColumns(10);
		txtHome.setVisible(false);
		
		//progressBar = new JProgressBar(0,100);
		progressBar.setStringPainted(true);
		progressBar.setBorderPainted(true);
		progressBar.setForeground(new Color(0, 128, 0));
		//progressBar.setValue(0);
		
		btnStart = new JButton("");
		btnStart.setIcon(new ImageIcon(ReadFileMain.class.getResource("/javagui/resources/img16x16/16x16-start4.jpg")));
		//progressBar.updateUI();
		GroupLayout gl_contentPane = new GroupLayout(contentPane);
		gl_contentPane.setHorizontalGroup(
			gl_contentPane.createParallelGroup(Alignment.LEADING)
				.addGroup(gl_contentPane.createSequentialGroup()
					.addContainerGap()
					.addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
						.addGroup(gl_contentPane.createSequentialGroup()
							.addGroup(gl_contentPane.createParallelGroup(Alignment.TRAILING)
								.addComponent(scrollPane, GroupLayout.DEFAULT_SIZE, 703, Short.MAX_VALUE)
								.addGroup(gl_contentPane.createSequentialGroup()
									.addComponent(Bck, GroupLayout.PREFERRED_SIZE, 45, GroupLayout.PREFERRED_SIZE)
									.addPreferredGap(ComponentPlacement.RELATED)
									.addComponent(Fwd, GroupLayout.PREFERRED_SIZE, 41, GroupLayout.PREFERRED_SIZE)
									.addGap(2)
									.addComponent(addressBar, GroupLayout.DEFAULT_SIZE, 493, Short.MAX_VALUE)
									.addPreferredGap(ComponentPlacement.UNRELATED)
									.addComponent(btnStart)
									.addGap(8)
									.addComponent(btnHome))
								.addComponent(txtHome, Alignment.LEADING, GroupLayout.DEFAULT_SIZE, 703, Short.MAX_VALUE))
							.addGap(26))
						.addGroup(gl_contentPane.createSequentialGroup()
							.addComponent(progressBar, GroupLayout.DEFAULT_SIZE, 701, Short.MAX_VALUE)
							.addGap(28))))
		);
		gl_contentPane.setVerticalGroup(
			gl_contentPane.createParallelGroup(Alignment.TRAILING)
				.addGroup(gl_contentPane.createSequentialGroup()
					.addComponent(txtHome, GroupLayout.PREFERRED_SIZE, 18, GroupLayout.PREFERRED_SIZE)
					.addPreferredGap(ComponentPlacement.RELATED)
					.addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
						.addGroup(gl_contentPane.createParallelGroup(Alignment.TRAILING, false)
							.addComponent(Bck, Alignment.LEADING, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
							.addComponent(Fwd, Alignment.LEADING, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
						.addComponent(btnHome)
						.addComponent(addressBar, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
						.addComponent(btnStart))
					.addPreferredGap(ComponentPlacement.RELATED)
					.addComponent(scrollPane, GroupLayout.DEFAULT_SIZE, 340, Short.MAX_VALUE)
					.addPreferredGap(ComponentPlacement.RELATED)
					.addComponent(progressBar, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
					.addContainerGap())
		);
		display = new JEditorPane();
		scrollPane.setViewportView(display);
		display.setContentType("text/html");
		display.setEditable(false);
		display.addMouseListener(mouseListener2);
		display.addHyperlinkListener(
			new HyperlinkListener(){
				public void hyperlinkUpdate(HyperlinkEvent event){
					if(event.getEventType()==HyperlinkEvent.EventType.ACTIVATED){
						k=1;
						p++;
						Common = loadCrap(event.getURL().toString());
					}
				}
			}	
		);
		display.setEnabled(false);
		HandlerClass1 handler1 = new HandlerClass1();
		HandlerClass2 handler2 = new HandlerClass2();
		HandlerClass3 handler3 = new HandlerClass3();
		HandlerClass4 handler4 = new HandlerClass4();
		Bck.addActionListener(handler1);
		Fwd.addActionListener(handler2);
		btnHome.addActionListener(handler3);
		btnStart.addActionListener(handler4);
		contentPane.setLayout(gl_contentPane);
	}
	//load crap to display on the screen
		@SuppressWarnings("deprecation")
		private String loadCrap(String userText){
			try{
				String Com;
				int N=0;
				if(k==1){
				  list1.add(userText);
				}
				//progressBar.setValue(0);
				for(life = 0; life <= 100; life++){
					progressBar.setValue(life);
					Thread.sleep(20);
				}
				HoldCurrentURL=userText;
				display.setPage(userText);
				addressBar.setText((userText));
			}catch(Exception e){
				System.out.println("crap!");
				//Correction(list1);
			}
			//progressBar.setValue(0);
			return userText;
		}
		//Button Listener Methods
		private class HandlerClass1 implements ActionListener{
			public void actionPerformed(ActionEvent event){
				UrlStrings=editlist1(HoldCurrentURL,HoldPreviousURL,list1);
				k=0;
				Common = loadCrap(UrlStrings[0]);
			}
		}
		private class HandlerClass2 implements ActionListener{
			public void actionPerformed(ActionEvent event){
				UrlStrings=editlist2(HoldCurrentURL,HoldPreviousURL,list1);
				Common = loadCrap(UrlStrings[1]);
			}
		}
		private class HandlerClass3 implements ActionListener{
			
			public void actionPerformed(ActionEvent event){
				if(Common.startsWith("http://")){
					 value = 0;
					 progressBar.setValue(value);
					 Common = loadCrap(Home);
					 progressBar.setValue(0);
			
				   }
				else{
					 if(!Home.startsWith("http://")){
						 value = 0;
						 progressBar.setValue(value);
						 Common = loadCrap("http://" + Home);
						 progressBar.setValue(0);
						 
				     }
					 else{
						 value = 0;
						 progressBar.setValue(value);
						 Common = loadCrap(Home);
						 progressBar.setValue(0);
					 }
				}
			}
		}
		private class HandlerClass4 implements ActionListener{
			public void actionPerformed(ActionEvent event){
				if(Enab == 0 ){
				  display.setEnabled(true);
				  if(!addressBar.isEnabled()){
				    addressBar.setEnabled(true);
				  }
				  Enab = 1;
				}
				else{
					display.setEnabled(false);
					if(addressBar.isEnabled()){
					  addressBar.setEnabled(false);
					}
					Enab = 0;
				}
				i6 = 0;
				if(!addressBar.isEnabled()){
					i6 = 1;
				}
			}
		}
		private class MouseEvent1 implements MouseListener{
			public void actionPerformed(MouseEvent e){
				
			}

			@Override
			public void mouseClicked(MouseEvent e) {
				// TODO Auto-generated method stub
				//addressBar.setText("");
				if(!addressBar.isEnabled()){
					addressBar.setEnabled(true);
				}
				addressBar.selectAll();
			}

			@Override
			public void mouseEntered(MouseEvent e) {
				// TODO Auto-generated method stub
				
			}

			@Override
			public void mouseExited(MouseEvent e) {
				// TODO Auto-generated method stub
				
			}

			@Override
			public void mousePressed(MouseEvent e) {
				// TODO Auto-generated method stub
				
			}

			@Override
			public void mouseReleased(MouseEvent e) {
				// TODO Auto-generated method stub
			}
		}
		private class MouseEvent2  extends MouseAdapter{
			private MouseEvent2() {}

				public void mouseReleased(MouseEvent e) { 

					if (e.getButton() == MouseEvent.BUTTON1) { 
						System.out.println("Left mouse clicked!");
						 //the first button (left?) 
						addressBar.setEnabled(false);

					} else if (e.getButton() == MouseEvent.BUTTON2) { 
	                    System.out.println("Wheel mouse clicked!");
						 //the second button (center?) 

					} else if (e.getButton() == MouseEvent.BUTTON3) {
						 PopUpMenu(e);
				         System.out.println("Right mouse clicked!");
				         //Pmenu.show(e.getComponent(),e.getX(),e.getY());
				         super.mouseReleased(e);
				         
						
				         //if(e.isPopupTrigger()){
				        	// Pmenu.show(e.getComponent(),e.getX(),e.getY());
				         //}
						 //the third button (right?) 

					} 
				}
	 
		}
		private class MouseEvent3 implements MouseListener{
			public void actionPerformed(MouseEvent e){
				
			}

			@Override
			public void mouseClicked(MouseEvent e) {
				// TODO Auto-generated method stub
				//addressBar.setText("");
				txtHome.selectAll();
			}

			@Override
			public void mouseEntered(MouseEvent e) {
				// TODO Auto-generated method stub
				
			}

			@Override
			public void mouseExited(MouseEvent e) {
				// TODO Auto-generated method stub
				
			}

			@Override
			public void mousePressed(MouseEvent e) {
				// TODO Auto-generated method stub
				
			}

			@Override
			public void mouseReleased(MouseEvent e) {
				// TODO Auto-generated method stub
			}
		}
		public static String[] editlist1(String HoldCurrentURL,String HoldPreviousURL,Collection<String> l1){
			//Iterator<String> it = l1.iterator();
			int j;
			k=0;
			String[] TwoURLS = {HoldPreviousURL,HoldCurrentURL};
			System.out.println("l1:" + l1);
			for(j=0;j<p+1;j++){
				if(j==p){
					p--;
					break;
				}
			}
			TwoURLS[0] = ((List<String>) l1).get(p);
			
			return TwoURLS;
		}
		public static String[] editlist2(String HoldCurrentURL,String HoldPreviousURL,Collection<String> l1){
			
			String[] TwoURLS = {HoldPreviousURL,HoldCurrentURL};
			System.out.println("l1:" + l1);
			if(p!=l1.size()){
			  p++;
			}
			else{
				p--;
			}
			TwoURLS[1] = ((List<String>) l1).get(p);
		
			return TwoURLS;
		}
		public void PopUpMenu(MouseEvent e){
			JPopupMenu Pmenu = new JPopupMenu();
			//Pmenu.addSeparator();
			HandClass1 Handler1 = new HandClass1();
			menuItem = new JMenuItem("Bck");
			menuItem.addActionListener(Handler1);
			Pmenu.add(menuItem);
			//Pmenu.addSeparator();
			menuItem = new JMenuItem("Fwd");
			menuItem.addActionListener(Handler1);
			Pmenu.add(menuItem);
			//Pmenu.addSeparator();
			menuItem = new JMenuItem("Reload");
			menuItem.addActionListener(Handler1);
			Pmenu.add(menuItem);
			//Pmenu.addSeparator();
			menuItem = new JMenuItem("Set Home");
			menuItem.addActionListener(Handler1);
			Pmenu.add(menuItem);
			//Pmenu.addSeparator();
			menuItem = new JMenuItem("Home");
			menuItem.addActionListener(Handler1);
			Pmenu.add(menuItem);
			//Pmenu.addSeparator();
			menuItem = new JMenuItem("Enable");
			menuItem.addActionListener(Handler1);
			if(i6 == 0){
				  menuItem.setEnabled(false);
				}
				else{
					menuItem.setEnabled(true);
				}
			Pmenu.add(menuItem);
			//Pmenu.addSeparator();
			menuItem = new JMenuItem("Disable");
			menuItem.addActionListener(Handler1);
			if(i6 == 1 ){
			  menuItem.setEnabled(false);
			}
			else{
				menuItem.setEnabled(true);
			}
			Pmenu.add(menuItem);
			//Pmenu.addSeparator();
			menuItem = new JMenuItem("Close");
			menuItem.addActionListener(Handler1);
			Pmenu.add(menuItem);
			//Pmenu.addSeparator();
			getContentPane().add(Pmenu);
			Pmenu.show(e.getComponent(),e.getX(),e.getY());
			enableEvents(AWTEvent.MOUSE_EVENT_MASK);
			Pmenu.setPopupSize(150,150);
			Pmenu.setBackground(Color.GRAY);
		}
		private class HandClass1 implements ActionListener{
			public void actionPerformed(ActionEvent event){
			   String command = event.getActionCommand();
			   if(command.equals("Bck")){
				   //System.out.println("1");
				   Bck.doClick(0);
				   //perform Back operation
			   }
			   if(command.equals("Fwd")){
				   //System.out.println("2");
				   Fwd.doClick(0);
				   //perform Forward operation
			   }
			   if(command.equals("Reload")){
				   //System.out.println("3");
			       Common = loadCrap(Common);
				   //perform Reload operation
			   }
			   if(command.equals("Set Home")){
				   txtHome.setVisible(true);
				   MouseEvent3 mouseListener3 = new MouseEvent3();
				   txtHome.addMouseListener(mouseListener3);
				   txtHome.addActionListener(
						   new ActionListener(){
							   public void actionPerformed(ActionEvent event){
								   if(event.getActionCommand() !=null){
									   Home = txtHome.getText();
								   }
							   }
						   }
				   );
			   }
			   if(command.equals("Home")){
				   //System.out.println("5");
				   if(Common.startsWith("http://")){
					 Common = loadCrap(Home);
				   }
				   else{
					   if(Common.startsWith("Home:")){
						   Common.replaceFirst("Home:", "");
						   Common = loadCrap("http://" + Home);
					   }
					   else{
						   if(!Home.startsWith("http://")){
					         Common = loadCrap("http://" + Home);
						   }
						   else{
							   Common = loadCrap(Home);
						   }
					   }
				   }
				   //perform Home operation
			   }
			   if(command.equals("Enable")){
					 //System.out.println("6");
					 if(addressBar.isEnabled() || !display.isEnabled()){
					   i6 = 0;
					   display.setEnabled(true);
					 }
				   }
			   if(command.equals("Disable")){
				 //System.out.println("7");
				 if(addressBar.isEnabled() || display.isEnabled()){
				   i6 = 1;
				   display.setEnabled(false);
				   
				 }
			   }
			   if(command.equals("Close")){
				   //System.out.println("8");
				   dispose();
				   //perform Extra operation
			   }
			}
		}
		private class HandClass2 implements ActionListener{
			public void actionPerformed(ActionEvent event){
				String command2 = event.getActionCommand();
				if(command2.equals("Close Instance")){
					dispose();
				}
				if(command2.equals("New Tab")){
					System.out.println("New Tab");
				}
			}
		}
}

[Ulf Dittmer]

At a quick glance, it seems you're using Swing's JEditorPane class to display HTML. Note that this is extremely limited in what it can do. Just about anything new on the web in the last 10 years won't be displayed, or not displayed correctly. For starters, try a page that uses nothing but HTML 3.2, no CSS, no JavaScript - that's what it can handle.

[Frank Senkrovich]

I am a begginner in Java so you say that I have to include CSS and Javascript in my web browser. Can I use JavaFx for that .I hear from people saying that It can display modern framework
crap.Is it true. If yes then what can I do ?Many Thanks. P.S.: Of course I don't and can't even try make better or look like chrome browser .I just wonna understand how things working.Thanks again.