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Java Web Browser Term Project- I am facing multiple problem...pls help
I am currently trying to make a web browser in JAVA.....but i am in big trouble in writing the code of saving a web page.....it is a bit tough as there are texts and images in a web page......can anyone help???? Please let me know if you can
Also I am having problem managing the cookies and enabling Javascript in my code....can anyone help me in this regard?
I am posting my code here
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Re: Java Web Browser Term Project- I am facing multiple problem...pls help
Way beyond me to figure that out, but at any rate, what code? It says "Page not found".Originally Posted by tazbinur
A web browser as a term project? Are you going for your doctorate or Masters or something? That seems a bit hard, an entire browser!
Last edited by javapenguin; October 6th, 2010 at 07:57 PM.
Re: Java Web Browser Term Project- I am facing multiple problem...pls help
For future reference, please copy and paste the code into the post itself (be sure to flank the code with the code tags). To save the page simply, just save the html, and change all the links (url, img, etc...) in the page to full url links based upon the url of the webpage. If you wish to save as an archive, you must save all images and html into a directory, and redirect the image links to the downloaded images (changing the clickable links to full path). Cookies are a bit more difficult as you must send them on a per webpage basis based upon the cookie. Javascript is even more difficult as this is a language in and of itself.
Re: Java Web Browser Term Project- I am facing multiple problem...pls help
Here is my entire code.....I have not included the icons though.....pls help me with the save option....i tried....but i failed to complete this option...
package webbrowser; import java.util.*; import java.awt.*; import java.awt.event.*; import java.awt.event.MouseListener; import java.net.*; import java.io.*; import javax.swing.*; import javax.swing.event.*; import java.awt.datatransfer.*; import javax.swing.text.html.*; import javax.swing.UIManager; import javax.swing.SwingUtilities; class Main extends JFrame implements ActionListener{ public JPanel addressPanel,descriptionPanel,buttonPanel,socialPanel,siPanel; public JButton Home,Stop,Reload,backPage,forwardPage,bookmarks,facebook,twitter,gmail,yahoo,cricinfo,bbc,Openfile,cutbutton,copybutton,pastebutton,sourcebutton,historybutton,infobutton; public JButton blockbutton,unblockbutton,bpbutton,passbutton; public JTextField address,searchHere; public JComboBox Combo; public JEditorPane contents; public JLabel description,l1; public String[] searchItem={"Bing","Ask.com","Yahoo","Amazon.com","Answer.com","eBay","Wikipedia"}; final String key="http://"; Clipboard clip = getToolkit().getSystemClipboard(); public String str,copiedStr; JMenu skins,file,edit,view,history,bookmark,tool,help,security; JSeparator js1; File saveas; private String newtxtad=""; JMenuItem winlook = new JMenuItem("Windows"); JMenuItem unixlook = new JMenuItem("Motif"); JMenuItem nimbuslook= new JMenuItem("Nimbus"); Stack<String> backLog=new Stack<String>(); Stack<String> forLog=new Stack<String>(); boolean backButtonClicked=false; boolean forwardButtonClicked=false; boolean copyClicked=false; boolean addressClicked=false,searchHereClicked=false; int flag2=0; int search=0; int index = 0; String a[]; int bookmarkIndex=0; boolean bookmarkFlag=false; /***************************************CONSTRUCTOR*************************************************/ public Main(){ setLocation(100,80); setTitle("Infinity Web Browser"); setSize(new Dimension(1000,600)); setDefaultCloseOperation(EXIT_ON_CLOSE); try { UIManager.setLookAndFeel ("com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel"); updater(); } catch(Exception e) {} MouseKarikuri Mouse = new MouseKarikuri(); int i; ImageIcon backIcon=new ImageIcon("Back.png"); ImageIcon forwardIcon=new ImageIcon("next.png"); ImageIcon stopIcon=new ImageIcon("Delete.png"); ImageIcon reloadIcon=new ImageIcon("refresh.png"); ImageIcon homeIcon=new ImageIcon("home.png"); ImageIcon bookmarkIcon=new ImageIcon("star.png"); ImageIcon facebookIcon=new ImageIcon("facebook.png"); ImageIcon twitterIcon=new ImageIcon("twitter.png"); ImageIcon gmailIcon=new ImageIcon("Gmail.png"); ImageIcon yahooIcon=new ImageIcon("yahoo.png"); ImageIcon cricinfoIcon=new ImageIcon("cricinfo.png"); ImageIcon bbcIcon=new ImageIcon("bbc.png"); addressPanel=new JPanel(); siPanel=new JPanel(); JPanel head=new JPanel(); head.setLayout(new FlowLayout()); buttonPanel=new JPanel(); socialPanel= new JPanel(); head.add(buttonPanel,BorderLayout.WEST); head.add(socialPanel,BorderLayout.EAST); buttonPanel.setBackground(Color.LIGHT_GRAY); socialPanel.setBackground(Color.LIGHT_GRAY); ImageIcon ofIcon=new ImageIcon("File1.png"); ImageIcon cutIcon=new ImageIcon("Cut1.png"); ImageIcon copyIcon=new ImageIcon("Copy1.png"); ImageIcon pasteIcon=new ImageIcon("paste1.png"); ImageIcon sourceIcon=new ImageIcon("Document1.png"); ImageIcon historyIcon=new ImageIcon("history1.png"); ImageIcon asIcon=new ImageIcon("Info1.png"); ImageIcon blockIcon=new ImageIcon("block.png"); ImageIcon unblockIcon=new ImageIcon("Unblock.png"); ImageIcon blockpageIcon=new ImageIcon("delete_page.png"); ImageIcon passIcon=new ImageIcon("lock1.png"); Openfile=new JButton(ofIcon); Openfile.setToolTipText("Open File"); Openfile.addActionListener(this); cutbutton=new JButton(cutIcon); cutbutton.setToolTipText("Cut"); cutbutton.addActionListener(this); copybutton=new JButton(copyIcon); copybutton.setToolTipText("Copy"); copybutton.addActionListener(this); pastebutton=new JButton(pasteIcon); pastebutton.setToolTipText("Paste"); pastebutton.addActionListener(this); sourcebutton=new JButton(sourceIcon); sourcebutton.setToolTipText("Source code"); sourcebutton.addActionListener(this); historybutton=new JButton(historyIcon); historybutton.setToolTipText("History"); historybutton.addActionListener(this); infobutton=new JButton(asIcon); infobutton.setToolTipText("Information"); infobutton.addActionListener(this); blockbutton=new JButton(blockIcon); blockbutton.setToolTipText("Block Web Page"); blockbutton.addActionListener(this); unblockbutton=new JButton(unblockIcon); unblockbutton.setToolTipText("Unblock Web Page"); unblockbutton.addActionListener(this); bpbutton=new JButton(blockpageIcon); bpbutton.setToolTipText("View Blocked Pages"); bpbutton.addActionListener(this); passbutton=new JButton(passIcon); passbutton.setToolTipText("Reset Password"); passbutton.addActionListener(this); siPanel.add(Openfile); siPanel.add(cutbutton); siPanel.add(copybutton); siPanel.add(pastebutton); siPanel.add(sourcebutton); siPanel.add(historybutton); siPanel.add(infobutton); siPanel.add(blockbutton); siPanel.add(unblockbutton); siPanel.add(bpbutton); siPanel.add(passbutton); Openfile.setBackground(Color.lightGray); cutbutton.setBackground(Color.lightGray); copybutton.setBackground(Color.lightGray); pastebutton.setBackground(Color.lightGray); sourcebutton.setBackground(Color.lightGray); historybutton.setBackground(Color.lightGray); infobutton.setBackground(Color.lightGray); blockbutton.setBackground(Color.lightGray); unblockbutton.setBackground(Color.lightGray); bpbutton.setBackground(Color.lightGray); passbutton.setBackground(Color.lightGray); backPage=new JButton(backIcon); backPage.setToolTipText("Click to go back"); backPage.setBounds(10,02,40,35); if(backLog.size()<=1) backPage.setEnabled(false); backPage.addActionListener(this); forwardPage=new JButton(forwardIcon); forwardPage.setToolTipText("Click to go forward"); forwardPage.setBounds(60,02,40,35); if(forLog.size()==0)forwardPage.setEnabled(false); forwardPage.addActionListener(this); Reload=new JButton(reloadIcon); Reload.setToolTipText("Reload this page"); Reload.addActionListener(this); Stop=new JButton(stopIcon); Stop.setToolTipText("Stop this page"); Stop.addActionListener(this); Home=new JButton(homeIcon); Home.setToolTipText("Open the Home page"); Home.addActionListener(this); bookmarks=new JButton(bookmarkIcon); bookmarks.setToolTipText("Bookmark this page"); bookmarks.addActionListener(this); facebook=new JButton(facebookIcon); facebook.setToolTipText("Open Facebook"); facebook.addActionListener(this); twitter=new JButton(twitterIcon); twitter.setToolTipText("Open Twitter"); twitter.addActionListener(this); gmail=new JButton(gmailIcon); gmail.setToolTipText("Open Gmail"); gmail.addActionListener(this); yahoo=new JButton(yahooIcon); yahoo.setToolTipText("Open Yahoo Mail"); yahoo.addActionListener(this); cricinfo=new JButton(cricinfoIcon); cricinfo.setToolTipText("Open Cricinfo"); cricinfo.addActionListener(this); bbc=new JButton(bbcIcon); bbc.setToolTipText("Read latest news"); bbc.addActionListener(this); buttonPanel.add(backPage); buttonPanel.add(forwardPage); buttonPanel.add(Reload); buttonPanel.add(Stop); buttonPanel.add(Home); buttonPanel.add(bookmarks); socialPanel.add(facebook); socialPanel.add(twitter); socialPanel.add(gmail); socialPanel.add(yahoo); socialPanel.add(cricinfo); socialPanel.add(bbc); Font font=new Font("Georgia",Font.PLAIN,18); l1=new JLabel(" Web Address :"); l1.setFont(font); addressPanel.add(l1); address=new JTextField(30); address.setSize(2000,10); address.setText("Enter Address Here"); address.setFont(font); address.addActionListener(this); address.addMouseListener(Mouse); addressPanel.add(address); Combo=new JComboBox(); Combo.addActionListener(this); for(i=0;i<searchItem.length;i++) Combo.addItem(searchItem[i]); addressPanel.add(Combo); Combo.setEditable(true); searchHere=new JTextField(10); searchHere.setText("Search Here!!!"); searchHere.setFont(font); searchHere.addMouseListener(Mouse); searchHere.addActionListener(this); addressPanel.add(searchHere); MenuInterface(); contents = new JEditorPane(); contents.setEditable(false); LinkListener linkHandler = new LinkListener(); contents.addHyperlinkListener(linkHandler); add(new JScrollPane(contents),BorderLayout.CENTER); descriptionPanel=new JPanel(); description=new JLabel(""); descriptionPanel.add(description); Stop.setBackground(Color.lightGray); Home.setBackground(Color.lightGray); Reload.setBackground(Color.lightGray); backPage.setBackground(Color.lightGray); forwardPage.setBackground(Color.lightGray); bookmarks.setBackground(Color.lightGray); facebook.setBackground(Color.white); twitter.setBackground(Color.white); gmail.setBackground(Color.white); yahoo.setBackground(Color.white); cricinfo.setBackground(Color.white); bbc.setBackground(Color.white); Combo.setBackground(Color.white); addressPanel.setBackground(Color.black); JPanel ananta=new JPanel(); ananta.setBackground(Color.white); ananta.setLayout(new GridLayout(2,1)); ananta.add(siPanel); siPanel.setBackground(Color.white); ananta.add(addressPanel); addressPanel.setBackground(Color.gray); JPanel Shovon=new JPanel(); Shovon.setBackground(Color.white); Shovon.setLayout(new GridLayout(2,1)); Shovon.add(head); head.setBackground(Color.lightGray); Shovon.add(ananta); ananta.setBackground(Color.GRAY); add(BorderLayout.NORTH,Shovon); add(BorderLayout.SOUTH,descriptionPanel); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setVisible(true); pack(); } JMenuBar menuBar; JMenuItem j[]=new JMenuItem[23]; JMenuItem b[]=new JMenuItem[10]; JMenuItem r[]=new JMenuItem[10]; JMenuItem clearbook,block,setPassword,blockedPage,unblock; int recentItem; public void MenuInterface(){ menuBar=new JMenuBar(); file=new JMenu("File"); file.setMnemonic('F'); edit=new JMenu("Edit"); edit.setMnemonic('E'); view=new JMenu("View"); view.setMnemonic('V'); history=new JMenu("History"); history.setMnemonic('H'); bookmark=new JMenu("Bookmarks"); bookmark.setMnemonic('B'); tool=new JMenu("Tools"); tool.setMnemonic('T'); help=new JMenu("Help"); help.setMnemonic('I'); security=new JMenu("Security"); security.setMnemonic('S'); j[0] = new JMenuItem("Open Location"); j[0].setIcon(new ImageIcon("url.png")); j[1] = new JMenuItem("Open File"); j[1].setIcon(new ImageIcon("File.png")); j[2] = new JMenuItem("Save"); j[2].setIcon(new ImageIcon("save.png")); j[3] = new JMenuItem("Exit"); j[3].setIcon(new ImageIcon("exit.png")); j[4] = new JMenuItem("Undo");//not used j[5] = new JMenuItem("Redo");//not used j[6] = new JMenuItem("Cut"); j[6].setIcon(new ImageIcon("Cut.png")); j[7] = new JMenuItem("Copy"); j[7].setIcon(new ImageIcon("Copy.png")); j[8] = new JMenuItem("Paste"); j[8].setIcon(new ImageIcon("paste.png")); j[9] = new JMenuItem("Find");//not used j[12] = new JMenuItem("Status Bar"); j[11] = new JMenuItem("Menu Bar");//not used j[10] = new JMenuItem("Navigation Bar");//not used j[13] = new JMenuItem("Page Source"); j[13].setIcon(new ImageIcon("Document.png")); j[14] = new JMenuItem("Back"); j[14].setIcon(new ImageIcon("Backward.png")); j[14].setEnabled(false); j[15] = new JMenuItem("Forward"); j[15].setIcon(new ImageIcon("Forward.png")); j[15].setEnabled(false); j[16] = new JMenuItem("Show All History"); j[16].setIcon(new ImageIcon("history.png")); j[17] = new JMenuItem("Recent Pages"); j[18] = new JMenuItem("Bookmark This Page"); j[18].setIcon(new ImageIcon("Stars.png")); j[19] = new JMenuItem("Recently Bookmarked"); j[19].setIcon(new ImageIcon("Green.png")); j[20] = new JMenuItem("Page Info"); j[20].setIcon(new ImageIcon("Info.png")); j[21] = new JMenuItem("Clear History"); j[21].setIcon(new ImageIcon("Clear.png")); clearbook=new JMenuItem("Clear All Bookmark"); clearbook.setIcon(new ImageIcon("broom.png")); block=new JMenuItem("Block Web Page"); block.setIcon(new ImageIcon("block1.png")); unblock=new JMenuItem("Unblock Page"); unblock.setIcon(new ImageIcon("page_accept.png")); blockedPage=new JMenuItem("Blocked Pages"); blockedPage.setIcon(new ImageIcon("delete_page1.png")); setPassword=new JMenuItem("Set Password"); setPassword.setIcon(new ImageIcon("lock.png")); skins=new JMenu("Skins"); j[22] = new JMenuItem("About Us"); j[22].setIcon(new ImageIcon("Info.png")); j[22].setBackground(Color.white); js1=new JSeparator(); int k; for(k=0;k<=3;k++) file.add(j[k]); for(k=6;k<=8;k++) edit.add(j[k]); for(k=13;k<=13;k++) view.add(j[k]); for(k=14;k<=17;k++) history.add(j[k]); for(k=18;k<=19;k++) bookmark.add(j[k]); for(k=20;k<=21;k++) tool.add(j[k]); help.add(j[22]); tool.add(clearbook); tool.add(js1); tool.add(skins); security.add(block); security.add(setPassword); security.add(blockedPage); security.add(unblock); unblock.addActionListener(this); blockedPage.addActionListener(this); block.addActionListener(this); setPassword.addActionListener(this); clearbook.addActionListener(this); skins.add(winlook); skins.add(unixlook); skins.add(nimbuslook); winlook.addActionListener(this); unixlook.addActionListener(this); nimbuslook.addActionListener(this); history.addSeparator(); bookmark.addSeparator(); for(k=0;k<j.length;k++) j[k].addActionListener(this); menuBar.add(file); menuBar.add(edit); menuBar.add(view); menuBar.add(history); menuBar.add(bookmark); menuBar.add(tool); menuBar.add(help); menuBar.add(security); try{ addBookmark(); }catch(IOException e){ System.out.println("Error Reading File"); } addRecentHistory(); setJMenuBar(menuBar); } public void addBookmark()throws IOException { FileReader ff=null; try{ ff=new FileReader("bookmarkLog.txt"); }catch(FileNotFoundException e){ System.out.println("File Not Found"); } BufferedReader br=new BufferedReader(ff); String s; int i=0; while((s=br.readLine())!=null){ b[i]=new JMenuItem(s); bookmark.add(b[i]); b[i].addActionListener(this); i++; if(i>=10){ break; } } bookmarkIndex=i; ff.close(); } public void addRecentHistory(){ FileReader f=null; try{ f=new FileReader("historyLog.txt"); BufferedReader br=new BufferedReader(f); int count=0; String s=null; while((s=br.readLine())!=null)count++; f.close(); br=null; String ss[]=new String[10]; s=null; f=new FileReader("historyLog.txt"); br=new BufferedReader(f); int v=count-ss.length; for(int i=0;i<v;i++){ s=br.readLine(); } int j=0; while((s=br.readLine())!=null){ ss[j]=s; j++; } recentItem=j; j--; int k=0; while(j>=0){ r[k]=new JMenuItem(ss[j]); r[k].addActionListener(this); history.add(r[k]); k++;j--; } }catch(FileNotFoundException e){ System.out.println("File Not Found"); }catch(IOException ee){ System.out.println("Error Reading File"); } } private class MouseKarikuri implements MouseListener{ public void mousePressed(MouseEvent e) { if(e.getComponent()==address){ if(copyClicked)j[8].setEnabled(true); } else if(e.getComponent()==searchHere){ if(copyClicked)j[8].setEnabled(true); } else j[8].setEnabled(false); if(e.getComponent()==address) { if(addressClicked==false){ address.setSelectionStart(0); addressClicked=true; } else addressClicked=false; } else if(e.getComponent()==searchHere)searchHere.setSelectionStart(0); } public void mouseReleased(MouseEvent e) { if(e.getComponent()==contents){ str=contents.getSelectedText(); if(str!=null){ j[7].setEnabled(true); } else j[7].setEnabled(false); } else if(e.getComponent()==address){ str=address.getSelectedText(); if(str!=null){ j[7].setEnabled(true); } else j[7].setEnabled(false); } else if(e.getComponent()==searchHere){ str=searchHere.getSelectedText(); if(str!=null){ j[7].setEnabled(true); } else j[7].setEnabled(false); } else { j[7].setEnabled(false); } } public void mouseEntered(MouseEvent e) {} public void mouseExited(MouseEvent e) {} public void mouseClicked(MouseEvent e) {} } private class LinkListener implements HyperlinkListener{ public void hyperlinkUpdate(HyperlinkEvent event) { if (event.getEventType() == HyperlinkEvent.EventType.ACTIVATED) showPage(event.getURL().toString()); if (event.getEventType() == HyperlinkEvent.EventType.ENTERED){ description.setText(event.getURL().toString()); } else description.setText(""); } } public void actionPerformed(ActionEvent ae){ if(ae.getSource()==address){ showPage(address.getText()); } ///********************************************************************************************************************************//// /***************************************OPEN LOCATION*************************************************/ if(ae.getSource()==j[0]) showPage(address.getText()); /***************************************OPEN*************************************************/ else if((ae.getSource()==j[1])||(ae.getSource()==Openfile)) { try { JFileChooser ch=new javax.swing.JFileChooser(); ch.setFileSelectionMode(javax.swing.JFileChooser.FILES_ONLY); int i=ch.showOpenDialog(contents); File f=ch.getSelectedFile(); contents.setPage("file:///"+f.getAbsolutePath()); } catch(Exception ec){} } /***************************************EXIT*************************************************/ else if(ae.getSource()==j[3]){ int i=JOptionPane.showConfirmDialog(this,"Do you want to exit Browser?","Web Browser",JOptionPane.OK_CANCEL_OPTION); if(i==JOptionPane.OK_OPTION) System.exit(1); } /***************************************CUT*************************************************/ else if((ae.getSource()==j[6])||(ae.getSource()==cutbutton)){ address.cut(); searchHere.cut(); } /***************************************COPY*************************************************/ else if((ae.getSource()==j[7])||(ae.getSource()==copybutton)){//copy copiedStr=str; copyClicked=true; address.copy(); } /***************************************PASTE*************************************************/ else if((ae.getSource()==j[8])||(ae.getSource()==pastebutton)){ address.paste(); } /***************************************PAGE SOURCE*************************************************/ else if((ae.getSource()==j[13])||(ae.getSource()==sourcebutton)){ JFrame pageFrame=new JFrame("SOURCE CODE"); pageFrame.setLocation(300,150); pageFrame.setSize(600,400); JTextArea pageArea=new JTextArea(); pageFrame.add(new JScrollPane(pageArea)); pageFrame.setVisible(true); float f2[]=new float[3]; Color.RGBtoHSB(211,218,237,f2); pageArea.setBackground(Color.getHSBColor(f2[0],f2[1],f2[2])); Font f=new Font("Georgia",Font.PLAIN,14); pageArea.setFont(f); try { URL PageUrl; URLConnection GetConn = null; GetConn = null; PageUrl = new URL(address.getText()); GetConn = PageUrl.openConnection(); GetConn.connect(); InputStreamReader ReadIn = new InputStreamReader(GetConn.getInputStream()); BufferedReader BufData = new BufferedReader(ReadIn); String TextFileName = ("crossword.txt"); FileWriter FWriter = new FileWriter(TextFileName); BufferedWriter BWriter = new BufferedWriter(FWriter); String UrlData = null; while ((UrlData = BufData.readLine()) != null) { BWriter.write(UrlData); BWriter.newLine(); } BWriter.close(); } catch(IOException io) { try{ FileWriter input=new FileWriter("crossword.txt"); input.write(""); input.close(); }catch(IOException e){ System.out.println(e); } //System.out.println(io); } try{ String g=null; StringBuffer sb1=new StringBuffer(""); FileReader ff1=new FileReader("crossword.txt"); BufferedReader br1=new BufferedReader(ff1); boolean flag1=true; while((g=br1.readLine())!=null) { flag1=false; sb1.append(g+'\n'); } if(flag1) sb1.append("\t\tNo Source Code Found"); pageArea.setText(sb1.toString()); pageArea.setEditable(false); ff1.close(); } catch(FileNotFoundException e){ System.out.println("File Not Found"); } catch(IOException ee){ System.out.println("File Reading Error!!!"); } } /***************************************BACK*************************************************/ else if(ae.getSource()==j[14]){ ae.setSource(backPage); return; } /***************************************FORWARD*************************************************/ else if(ae.getSource()==j[15]){ ae.setSource(forwardPage); return; } /************************************HISTORY***********************************/ else if((ae.getSource()==j[16])||(ae.getSource()==historybutton)){ JFrame histFrame=new JFrame("History"); histFrame.setSize(400,400); JTextArea histArea=new JTextArea(); histFrame.add(new JScrollPane(histArea)); histFrame.setVisible(true); histArea.setBackground(Color.gray); Font f=new Font("Georgia",Font.PLAIN,18); histArea.setFont(f); BufferedReader br=null; FileReader ff=null; try{ String s=null; StringBuffer sb=new StringBuffer(""); ff=new FileReader("historyLog.txt"); br=new BufferedReader(ff); boolean flag=true; while((s=br.readLine())!=null) { flag=false; sb.append(s+'\n'); } if(flag) sb.append("\tNo History Found"); histArea.setText(sb.toString()); histArea.setEditable(false); ff.close(); } catch(FileNotFoundException e){ System.out.println("File Not Found"); } catch(IOException ee){ System.out.println("File Reading Error!!!"); } } /******************************************BOOKMARK*********************************************/ else if(ae.getSource()==j[18]){ FileWriter f=null; if(bookmarkFlag==true) { String s=address.getText()+'\n'; char buffer[]=new char[s.length()]; s.getChars(0,s.length(),buffer,0); try{ f=new FileWriter("bookmarkLog.txt",true); f.write(buffer); f.close(); for(int i=0;i<bookmarkIndex;i++)bookmark.remove(b[i]); addBookmark(); }catch(IOException e){ System.out.println("File Error!"); } } } /***********************************PAGE INFO**************************************/ else if(ae.getSource()==j[20]){ URL hp=null; String loc,st=address.getText(); if(st.startsWith(key)==false)loc=key+st; else loc=st; System.out.println(loc); try{ hp=new URL(loc); st="Protocol: "+hp.getProtocol()+'\n'+ "Port: "+hp.getPort()+'\n'+ "Host: "+hp.getHost()+'\n'+ "File: "+hp.getFile()+'\n'+ "Ext: "+hp.toExternalForm(); contents.setText(st); }catch(MalformedURLException e){ st="Unable to Retrive Any Information"; JOptionPane.showMessageDialog(this,"Page Info:\n"+st,"Page Info",JOptionPane.INFORMATION_MESSAGE); } } /***********************************CLEAR HISTORY*************************************/ else if(ae.getSource()==j[21]){ FileWriter f=null; int i=JOptionPane.showConfirmDialog(this,"Are You Sure To Clear History?","History",JOptionPane.OK_CANCEL_OPTION); if(i==JOptionPane.CANCEL_OPTION)return; if(i==JOptionPane.CLOSED_OPTION)return; try{ f=new FileWriter("historyLog.txt"); f.write(""); f.close(); for(int p=0;p<recentItem;p++)history.remove(r[p]); }catch(FileNotFoundException e){ System.out.println("History Can't be cleared"); }catch(IOException ee){ System.out.println("History Can't be cleared"); } } /*********************************ABOUT US************************************/ else if((ae.getSource()==j[22])||(ae.getSource()==infobutton)){ String s=" Term Project \n"+ " ****WEB BROWSER**** \n"+ "Adviser: Shebuti Rayana\n"+ " Lecturer,BUET\n"+ "Programmers: Mir Tazbinur Shovon (0805040) \n"+ " Ananta Ghosh (0805041)\n"+ " For further information you can mail us at\n"+ " [email]tazbinur@gmail.com[/email]\n"+ " [email]g_ananta@hotmail.com[/email]"; JOptionPane.showMessageDialog(this,s,"About Us",JOptionPane.INFORMATION_MESSAGE); } /*****************************CLEAR BOOKMARK***************************/ else if(ae.getSource()==clearbook){ FileWriter f=null; int i=JOptionPane.showConfirmDialog(this,"Are You Sure To Clear All Bookmarks?","Bookmark",JOptionPane.OK_CANCEL_OPTION); if(i==JOptionPane.CANCEL_OPTION)return; if(i==JOptionPane.CLOSED_OPTION)return; try{ f=new FileWriter("bookmarkLog.txt"); f.write(""); f.close(); System.out.println(bookmarkIndex); for(int p=0;p<bookmarkIndex;p++)bookmark.remove(b[p]); }catch(FileNotFoundException e){ System.out.println("Bookmark Can't be cleared"); }catch(IOException ee){ System.out.println("Bookmark Can't be cleared"); } } /*****************************BLOCK PAGE*******************************/ else if((ae.getSource()==block)||(ae.getSource()==blockbutton)){ WebBlocker ob=new WebBlocker(true); } /*****************************UNBLOCK PAGE*******************************/ else if((ae.getSource()==unblock)||(ae.getSource()==unblockbutton)){ WebBlocker ob=new WebBlocker(false); } /**************************SHOW BLOCKED PAGES***************************/ else if((ae.getSource()==blockedPage)||(ae.getSource()==bpbutton)){ try{ FileReader f=new FileReader("block.txt"); BufferedReader br=new BufferedReader(f); String s=br.readLine(); if(s==null){ JOptionPane.showConfirmDialog(this,"No Blocked Pages","Page Blocker",JOptionPane.PLAIN_MESSAGE); } else{ JFrame pageFrame=new JFrame("Blocked Pages"); pageFrame.setLocation(300,150); pageFrame.setSize(600,400); pageFrame.setVisible(true); JTextArea pageArea=new JTextArea(); pageFrame.add(new JScrollPane(pageArea)); pageFrame.setVisible(true); Font ff=new Font("Georgia",Font.PLAIN,14); pageArea.setFont(ff); float f2[]=new float[3]; Color.RGBtoHSB(211,218,237,f2); pageArea.setBackground(Color.getHSBColor(f2[0],f2[1],f2[2])); pageArea.setEditable(false); StringBuffer sbuf=new StringBuffer(s+'\n'); while((s=br.readLine())!=null){ sbuf.append(s+'\n'); } pageArea.setText(sbuf.toString()); } f.close(); }catch(IOException e){ } } /***************************SET PASSWORD******************************/ else if((ae.getSource()==setPassword)||(ae.getSource()==passbutton)){ PasswordSetter ob=new PasswordSetter(); } /*****************************CLEAR BOOKMARK***************************/ else if(ae.getSource()==clearbook){ FileWriter f=null; int i=JOptionPane.showConfirmDialog(this,"Are You Sure To Clear All Bookmarks?","Bookmark",JOptionPane.OK_CANCEL_OPTION); if(i==JOptionPane.CANCEL_OPTION)return; if(i==JOptionPane.CLOSED_OPTION)return; try{ f=new FileWriter("bookmarkLog.txt"); f.write(""); f.close(); System.out.println(bookmarkIndex); for(int p=0;p<bookmarkIndex;p++)bookmark.remove(b[p]); }catch(FileNotFoundException e){ System.out.println("Bookmark Can't be cleared"); }catch(IOException ee){ System.out.println("Bookmark Can't be cleared"); } } for(int q=0;q<bookmarkIndex;q++){ if(ae.getSource()==b[q]){ showPage(b[q].getText()); } } for(int p=0;p<recentItem;p++){ if(ae.getSource()==r[p]){ showPage(r[p].getText()); } } ////*********************************************************************************************************************************////// /***************************************FOR BUTTONS*************************************************/ if(ae.getSource()==Home){ showPage("http://www.google.com"); } else if(ae.getSource()==facebook){ showPage("http://www.facebook.com"); } else if(ae.getSource()==twitter){ showPage("http://www.twitter.com"); } else if(ae.getSource()==gmail){ showPage("http://www.gmail.com"); } else if(ae.getSource()==yahoo){ showPage("http://mail.yahoo.com/"); } else if(ae.getSource()==cricinfo){ showPage("http://www.cricinfo.com/"); } else if(ae.getSource()==bbc){ showPage("http://www.bbc.co.uk"); } else if(ae.getSource()==Reload){ showPage(address.getText()); } else if(ae.getSource()==Stop){ try{ File gt=new File("C:/White.html"); if(gt.isFile() && gt.exists()) { contents.setPage(new URL("file://localhost/C:/White.html")); } else { FileWriter m=new FileWriter("C:/stop.html"); m.write("<html>"+"\n" +" <body>"+"\n" +"</body>" +"\n" +" </html> " ); m.close(); contents.setPage(new URL("file://localhost/C:/stop.html")); } } catch(Exception gty){} } else if(ae.getSource()==backPage){ forLog.push(backLog.pop()); backButtonClicked=true; showPage(backLog.peek()); } else if(ae.getSource()==forwardPage){ forwardButtonClicked=true; showPage(forLog.pop()); } /*******************************Skin Updater******************************/ /********************Windows******************************/ else if(ae.getSource()==winlook){ try { UIManager.setLookAndFeel ("com.sun.java.swing.plaf.windows.WindowsLookAndFeel"); updater(); } catch(Exception e) {} } /******************************Motif**********************************/ else if(ae.getSource()==unixlook){ try { UIManager.setLookAndFeel ("com.sun.java.swing.plaf.motif.MotifLookAndFeel"); updater(); } catch(Exception e) {} } /*******************Nimbus***************/ else if(ae.getSource()==nimbuslook){ /* try { UIManager.setLookAndFeel ("com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel"); updater(); } catch(Exception e) {}*/ try { UIManager.setLookAndFeel("com.jtattoo.plaf.hifi.HiFiLookAndFeel"); updater(); } catch (Exception e) { } } /*******************************************************************************************************************/ else if(ae.getSource()==bookmarks){ FileWriter f=null; if(bookmarkFlag==true) { String s=address.getText()+'\n'; char buffer[]=new char[s.length()]; s.getChars(0,s.length(),buffer,0); try{ f=new FileWriter("bookmarkLog.txt",true); f.write(buffer); f.close(); for(int i=0;i<bookmarkIndex;i++)bookmark.remove(b[i]); addBookmark(); }catch(IOException e){ System.out.println("File Error!"); } } } /******************************SEARCH ENGINE**********************************************/ else if(ae.getSource()==Combo){ String select = (String)Combo.getSelectedItem(); if(select.equals("Bing")) { search = 1; } if(select.equals("Ask.com")) { search = 2; } else if(select.equals("Yahoo")) { search = 3; } else if(select.equals("Amazon.com")) { search = 4; } else if(select.equals("Answer.com")) { search = 5; } else if(select.equals("eBay")) { search = 6; } else if(select.equals("Wikipedia")) { search = 7; } } else if(ae.getSource()==searchHere){ if(search == 1) // Google { String google = "http://www.bing.com/search?q="+searchHere.getText()+"&go=&form=QBLH&qs=n&sk=&sc=8-3" ; address.setText(google); showPage(google); } if(search == 2) // Ask.com { String ask = "http://www.ask.com/web?q="+searchHere.getText()+"&search=&qsrc=0&o=0&l=dir" ; address.setText(ask); showPage(ask); } if(search == 3) // Yahoo { String yahoo = "http://search.yahoo.com/search?p="+searchHere.getText()+"&fr=yfp-t-501&toggle=1&cop=mss&ei=UTF-8" ; address.setText(yahoo); showPage(yahoo); } if(search == 4) // Amazon { String amazon = "http://www.amazon.com/s/192-2503304-2985467?ie=UTF8&tag=mozilla-20&index=blended&link_code=qs&field-keywords="+searchHere.getText()+"&sourceid=Mozilla-search" ; address.setText(amazon); showPage(amazon); } if(search == 5) // Answer.com { String answer = "http://www.answers.com/main/ntquery?s="+searchHere.getText()+"&gwp=13" ; address.setText(answer); showPage(answer); } if(search == 6) // eBay.com { String ebay = "http://shop.ebay.com/i.html?_nkw="+searchHere.getText()+"&_armrs=1&_from=&_ipg=" ; address.setText(ebay); showPage(ebay); } if(search == 7) // Wikipedia { String wiki = "http://en.wikipedia.org/wiki/Special:Search?search="+searchHere.getText()+"&go=Go"; address.setText(wiki); showPage(wiki); } } } /*****************************************************************************************************************************************/ public boolean isBlocked(String loc){ try{ FileReader f=new FileReader("block.txt"); BufferedReader br=new BufferedReader(f); String s=null; while((s=br.readLine())!=null){ if(loc.equals(s)){ f.close(); return true; } } f.close(); return false; }catch(IOException e){ return false; } } public void showPage(String str){ if(str.equals("Enter Address Here") || str.equals("")) return; String location; if(str.startsWith(key)==false) location=key+str; else location=str; if(backButtonClicked==false){ backLog.push(location); //forLog.clear(); } else backButtonClicked=false; if(backLog.size()<=1) { backPage.setEnabled(false); j[14].setEnabled(false); } else { backPage.setEnabled(true); j[14].setEnabled(true); } if(forLog.size()==0) { forwardPage.setEnabled(false); j[15].setEnabled(false); } else { forwardPage.setEnabled(true); j[15].setEnabled(false); } if(isBlocked(location)){ JOptionPane.showMessageDialog(this,"This WebSite is Blocked","Infinity",JOptionPane.ERROR_MESSAGE); return; } try{ address.setText(location); contents.setPage(location); bookmarkFlag=true; FileWriter f=new FileWriter("historyLog.txt",true); String ss=location+'\n'; f.write(ss); f.close(); for(int k=0;k<recentItem;k++)history.remove(r[k]); addRecentHistory(); }catch(IOException hyu){ bookmarkFlag=false; try{ File rt=new File("C:/error.html"); if(rt.isFile() && rt.exists()) contents.setPage(new URL("file://localhost/C:/Error.html")); else{ FileWriter w=new FileWriter("C:/error.html"); w.write("<Html> <head> Server not Found (Mirror Error Details) <head>"+"\n\r" +" <Title> Error</Title></head>" +"<Body> <Body> <h1> The page cannot be displayed </h1>" +"The page you are looking for is currently unavailable.</br> \n\r The Web site might be experiencing technical difficulties,</br> \n\r or you may need to adjust your browser settings.</br>" +" <h3> <u><b>Url ="+address.getText()+"</b></u></h3><br> Please Search On <a href a=http://www.google.co.in> Google </a> </body><html>" ); w.close(); contents.setPage(new URL("file://localhost/C:/error.html")); } } catch(Exception gty){} } } /*******************************CLASS for Skin Updater*************************************/ public void updater() { addressPanel.updateUI(); descriptionPanel.updateUI(); buttonPanel.updateUI(); socialPanel.updateUI(); siPanel.updateUI(); js1.updateUI(); skins.updateUI(); file.updateUI(); edit.updateUI(); view.updateUI(); history.updateUI(); bookmark.updateUI(); tool.updateUI(); help.updateUI(); security.updateUI(); Home.updateUI(); Stop.updateUI(); Reload.updateUI(); backPage.updateUI(); forwardPage.updateUI(); bookmarks.updateUI(); facebook.updateUI(); twitter.updateUI(); gmail.updateUI(); yahoo.updateUI(); cricinfo.updateUI(); bbc.updateUI(); Openfile.updateUI(); cutbutton.updateUI(); copybutton.updateUI(); pastebutton.updateUI(); sourcebutton.updateUI(); historybutton.updateUI(); infobutton.updateUI(); blockbutton.updateUI(); unblockbutton.updateUI(); bpbutton.updateUI(); passbutton.updateUI(); address.updateUI(); searchHere.updateUI(); Combo.updateUI(); description.updateUI(); l1.updateUI(); winlook.updateUI(); unixlook.updateUI(); nimbuslook.updateUI(); contents.updateUI(); menuBar.updateUI(); file.updateUI(); edit.updateUI(); clearbook.updateUI(); view.updateUI(); history.updateUI(); bookmark.updateUI(); tool.updateUI(); help.updateUI(); security.updateUI(); int counter=0; while(j[counter]!=null){ j[counter].updateUI(); counter++; } clearbook.updateUI(); block.updateUI(); blockedPage.updateUI(); unblock.updateUI(); setPassword.updateUI(); } /******************************************MAIN***************************************************/ static Main frame; public static void main(String[] args) { frame=new Main(); frame.setVisible(true); frame.setSize(new Dimension(1200,600)); } }
Last edited by copeg; October 7th, 2010 at 08:45 AM. Reason: Please use the code tags
Re: Java Web Browser Term Project- I am facing multiple problem...pls help
Way beyond me to figure that out, but at any rate, what code? It says "Page not found".
A web browser as a term project? Are you going for your doctorate or Masters or something? That seems a bit hard, an entire browser!
Nope bro...I am doing my BSc...and I am a 2nd year student.....and well its not a browser with full functionality.....its beyond my capability now
Re: Java Web Browser Term Project- I am facing multiple problem...pls help
That's a lot of code. Could you reduce it to just the portion that deals with with the question at hand (ie saves)?
Re: Java Web Browser Term Project- I am facing multiple problem...pls help
I have not written action for "save"....i just need that part of code.....i tried every possible step...but couldn't make it
Re: Java Web Browser Term Project- I am facing multiple problem...pls help
What do you mean by "save?"
Re: Java Web Browser Term Project- I am facing multiple problem...pls help
I mean saving a webpage like google chrome and firefox do(Both text and images)
Re: Java Web Browser Term Project- I am facing multiple problem...pls help
Read my post above. You need to get the webpage html. Then parse the html to look for <img src=""> tags, for each of these you download the image to local and change the webpage html to reflect where the images were saves (for example if you save the page to a folder named web, and your images to web/images, you change the img src="" to point to images/imagename). Then you must parse the html to look for links, changing each <a href="" to a full path link. Then lastly save the modified html.
Re: Java Web Browser Term Project- I am facing multiple problem...pls help
Can you help me with the code.....i have not worked with tag and parse.....and my submission is tomorrow....so i also don't have the chance to experiment
Re: Java Web Browser Term Project- I am facing multiple problem...pls help
We can help guide you when you have problems, but will not do your assignment. Given the above descriptions, you should have more than enough information to get started. If not, here's more.
For files: Lesson: Basic I/O (The Java™ Tutorials > Essential Classes)
For parsing, see String and/or Lesson: Regular Expressions (The Java™ Tutorials > Essential Classes)
Being short on time is no excuse to ditch the learning process.
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