Thread: [jxtaim-cvs] jxtaim/src/vsis/im/view/util BBStyledEditorKit.java, 1.2, 1.3

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Update of /cvsroot/jxtaim/jxtaim/src/vsis/im/view/util
In directory sc8-pr-cvs6.sourceforge.net:/tmp/cvs-serv21042/src/vsis/im/view/util

Modified Files:
	BBStyledEditorKit.java 
Log Message:
New autodetect and display URL and URI feature for rich BB editor kit.
Hyperlink events are properly emitted if mouse click on such a link happens.

Index: BBStyledEditorKit.java
===================================================================
RCS file: /cvsroot/jxtaim/jxtaim/src/vsis/im/view/util/BBStyledEditorKit.java,v
retrieving revision 1.2
retrieving revision 1.3
diff -C2 -d -r1.2 -r1.3
*** BBStyledEditorKit.java	23 Jul 2006 17:23:27 -0000	1.2
--- BBStyledEditorKit.java	24 Jul 2006 11:53:28 -0000	1.3
***************
*** 26,37 ****
--- 26,48 ----
  package vsis.im.view.util;

+ import java.awt.Color;
  import java.awt.event.ActionEvent;
+ import java.awt.event.MouseAdapter;
+ import java.awt.event.MouseEvent;
+ import java.awt.event.MouseMotionAdapter;
  import java.io.IOException;
  import java.io.Reader;
  import java.io.Writer;
+ import java.net.MalformedURLException;
+ import java.net.URI;
+ import java.net.URISyntaxException;
+ import java.net.URL;
  import java.util.LinkedList;
  import java.util.ListIterator;

  import javax.swing.JEditorPane;
+ import javax.swing.event.CaretEvent;
+ import javax.swing.event.CaretListener;
+ import javax.swing.event.HyperlinkEvent;
  import javax.swing.text.AbstractDocument;
  import javax.swing.text.AttributeSet;
***************
*** 39,49 ****
--- 50,63 ----
  import javax.swing.text.BoxView;
  import javax.swing.text.ComponentView;
+ import javax.swing.text.DefaultStyledDocument;
  import javax.swing.text.Document;
  import javax.swing.text.Element;
  import javax.swing.text.IconView;
  import javax.swing.text.LabelView;
+ import javax.swing.text.MutableAttributeSet;
  import javax.swing.text.ParagraphView;
  import javax.swing.text.SimpleAttributeSet;
  import javax.swing.text.StyleConstants;
+ import javax.swing.text.StyledDocument;
  import javax.swing.text.StyledEditorKit;
  import javax.swing.text.View;
***************
*** 137,140 ****
--- 151,205 ----
  	}

+ //	 action classes
+ 	static public class BBUrlifyAction extends StyledEditorKit.StyledTextAction
+ 	{
+ 		public BBUrlifyAction()
+ 		{
+ 			super("URL");
+ 		}
+ 		
+ 		public void actionPerformed(ActionEvent e) {
+ 			JEditorPane editor = getEditor(e);
+ 			BBStyledEditorKit editorKit = (BBStyledEditorKit) editor.getEditorKit();
+ 
+ 			String potentialUrl = editor.getSelectedText();
+ 			URL parsedUrl = null;
+ 			try {
+ 				parsedUrl = new URL(potentialUrl);
+ 			} catch (MalformedURLException e1) {
+ 			}
+ 
+ 			if(parsedUrl != null)
+ 			{
+ 				SimpleAttributeSet anAttributeSet =
+ 					new SimpleAttributeSet(editorKit.getCharacterAttributeRun().getAttributes());
+ 			
+ 				Object oldValue = editorKit.getCharacterAttributeRun().getAttributes().getAttribute("URL");
+ 				if(oldValue != null && "true".equals(oldValue))
+ 				{
+ 					anAttributeSet.removeAttribute("URL");
+ 				} else {
+ 					anAttributeSet.addAttribute("URL","true");
+ 				}
+ 
+ 				setCharacterAttributes(editor, anAttributeSet, true);
+ 			} else {
+ 				SimpleAttributeSet anAttributeSet =
+ 					new SimpleAttributeSet(editorKit.getCharacterAttributeRun().getAttributes());
+ 			
+ 				Object oldValue = editorKit.getCharacterAttributeRun().getAttributes().getAttribute("URL");
+ 				if(oldValue != null && "true".equals(oldValue))
+ 				{
+ 					anAttributeSet.removeAttribute("URL");
+ 				}
+ 				
+ 				setCharacterAttributes(editor, anAttributeSet, true);
+ 			}
+ 		}
+ 	}
+ 
+ 	
+ 	private JEditorPane installedEditor;
+ 
  	public BBStyledEditorKit() {
  		super();
***************
*** 179,182 ****
--- 244,388 ----
  	}

+ 	public void install(final JEditorPane c) {
+ 		if(c.isEditable())
+ 			c.setToolTipText("JUXIM BBCode Editor");
+ 		else
+ 			c.setToolTipText("JUXIM BBCode Viewer");
+ 		
+ 		c.addMouseListener(new MouseAdapter()
+ 		{
+ 			@Override
+ 			public void mouseClicked(MouseEvent e) {
+ 				super.mouseClicked(e);
+ 				
+ 				int caretPos = c.viewToModel(e.getPoint());
+ 	    		if(caretPos > -1)
+ 	    		{
+ 	    			Element elem = ((DefaultStyledDocument) c.getDocument()).getCharacterElement(caretPos);
+ 	    			if(elem == null)
+ 	    				return;
+ 	    			
+ 	    			String urlString = null;
+ 					try {
+ 						urlString = c.getDocument().getText(elem.getStartOffset(), elem.getEndOffset() - elem.getStartOffset());
+ 					} catch (BadLocationException e1) {
+ 						e1.printStackTrace();
+ 					}
+ 					
+ 					if(urlString != null)
+ 	    			{
+ 						Object urlValue = ((MutableAttributeSet)elem.getAttributes()).getAttribute("URL");
+ 						if( urlValue != null)
+ 						{	
+ 							URL url = null;
+ 							try {
+ 								url = new URL(urlString);
+ 							} catch (MalformedURLException e2) {
+ 							}
+ 							
+ 							if(url != null)
+ 							{
+ 								HyperlinkEvent e1 = new HyperlinkEvent(c, HyperlinkEvent.EventType.ACTIVATED, url);
+ 								c.fireHyperlinkUpdate(e1);
+ 							}
+ 						}
+ 	    			}
+ 	    		}
+ 			}
+ 		});
+ 	    
+ 		c.addMouseMotionListener(new MouseMotionAdapter()
+ 	    {
+ 			Element current = null;
+ 			AttributeSet oldSet = null;
+ 			URL currentRealUrl = null;
+ 			
+ 			@Override
+ 	    	public void mouseMoved(MouseEvent e) {
+ 	    		super.mouseMoved(e);
+ 	    		int caretPos = c.viewToModel(e.getPoint());
+ 	    		if(caretPos > -1)
+ 	    		{
+ 	    			Element elem = ((DefaultStyledDocument) c.getDocument()).getCharacterElement(caretPos);
+ 	    			if(elem == null)
+ 	    				return;
+ 	    			
+ 	    			String urlString = null;
+ 					try {
+ 						urlString = c.getDocument().getText(elem.getStartOffset(), elem.getEndOffset() - elem.getStartOffset());
+ 					} catch (BadLocationException e1) {
+ 						e1.printStackTrace();
+ 					}
+ 					//System.out.println("Elem : "+elem);
+ 					if(elem != current && current != null){
+ 						MutableAttributeSet newSet = new SimpleAttributeSet(oldSet);
+ 						newSet.removeAttribute("URLOVER");
+ 						
+ 	    				((StyledDocument)c.getDocument()).setCharacterAttributes(current.getStartOffset(),
+ 	    							current.getEndOffset() - current.getStartOffset(),
+ 	    							newSet,
+ 	    							true);
+ 	    				current = null;
+ 	    				oldSet = null;
+ 	    				
+ 	    				if(c.isEditable())
+ 	    					c.setToolTipText("JUXIM BBCode Editor");
+ 	    				else
+ 	    					c.setToolTipText("JUXIM BBCode Viewer");
+ 	    				
+ 	    				if(currentRealUrl != null)
+ 						{
+ 							HyperlinkEvent e1 = new HyperlinkEvent(c, HyperlinkEvent.EventType.EXITED, currentRealUrl);
+ 							c.fireHyperlinkUpdate(e1);
+ 							currentRealUrl = null;
+ 						}
+ 					}
+ 					
+ 					if(urlString != null)
+ 	    			{
+ 						Object urlValue = ((MutableAttributeSet)elem.getAttributes()).getAttribute("URL");
+ 						if( urlValue != null)
+ 						{
+ 							try {
+ 								currentRealUrl = new URL(urlString);
+ 							} catch (MalformedURLException e2) {
+ 							
+ 							}
+ 							
+ 							if(currentRealUrl != null)
+ 							{
+ 								current = elem;
+ 								oldSet = new SimpleAttributeSet(elem.getAttributes().copyAttributes());
+ 								MutableAttributeSet newSet = new SimpleAttributeSet(oldSet);
+ 								newSet.addAttribute("URLOVER", "true");
+ 								newSet.addAttribute("URL", "true");
+ 							
+ 								((StyledDocument)c.getDocument()).setCharacterAttributes(current.getStartOffset(),
+ 	    							current.getEndOffset() - current.getStartOffset(),
+ 	    							newSet,
+ 	    							true);
+ 		    				
+ 								c.setToolTipText("URL: " + urlString);
+ 							
+ 							
+ 								HyperlinkEvent e1 = new HyperlinkEvent(c, HyperlinkEvent.EventType.ENTERED, currentRealUrl);
+ 								c.fireHyperlinkUpdate(e1);
+ 							}
+ 						}
+ 	    			}
+ 	    			
+ 	    		}
+ 	    	}
+ 	    });
+ 		c.addCaretListener(new CaretListener() 
+ 		{
+ 			public void caretUpdate(CaretEvent e) {
+ 				
+ 			}
+ 		});
+ 		super.install(c);
+ 		installedEditor = c;
+ 	}
+ 
  	protected AttributeSet mapAttributeSetForRendering(AttributeSet set) {
  		SimpleAttributeSet renderAttributes = new SimpleAttributeSet();
***************
*** 196,200 ****
  			StyleConstants.setUnderline(renderAttributes, true);
  		}
! 		
  		// TODO ... all other BB tags must be mapped too here
  		return renderAttributes;
--- 402,417 ----
  			StyleConstants.setUnderline(renderAttributes, true);
  		}
! 
! 		if("true".equals(set.getAttribute("URL")))
! 		{
! 			StyleConstants.setUnderline(renderAttributes, true);
! 			StyleConstants.setForeground(renderAttributes, Color.BLUE);
! 		}
! 
! 		if("true".equals(set.getAttribute("URLOVER")))
! 		{
! 			StyleConstants.setForeground(renderAttributes, Color.RED);
! 		}
! 
  		// TODO ... all other BB tags must be mapped too here
  		return renderAttributes;
***************
*** 233,237 ****
  		String curContent = "";
  		SimpleAttributeSet curSet = new SimpleAttributeSet();
- 		
  		while(next > -1)
  		{
--- 450,453 ----
***************
*** 255,259 ****
  				if(curContent.length() > 0)
  				{
! 					doc.insertString(pos + offset, curContent, curSet.copyAttributes());
  					offset += curContent.length();
  					curContent = "";
--- 471,475 ----
  				if(curContent.length() > 0)
  				{
! 					doc.insertString(pos + offset, curContent, new SimpleAttributeSet(curSet));
  					offset += curContent.length();
  					curContent = "";
***************
*** 285,290 ****
  		{
  			curContent += fullSource.substring(cur);
! 			doc.insertString(pos + offset, curContent, curSet.copyAttributes());
  		}
  	}

--- 501,571 ----
  		{
  			curContent += fullSource.substring(cur);
! 			doc.insertString(pos + offset, curContent, new SimpleAttributeSet(curSet));
  		}
+ 
+ 		// first, remove all URL attributes from all elements currently in this kit
+ 		StyledDocument sDoc = (StyledDocument) doc;
+ 		Element lastElement = null;
+ 		for(int j = 0; j < doc.getLength(); j++)
+ 		{
+ 			Element maybeNew = sDoc.getCharacterElement(j);
+ 			if(maybeNew != lastElement)
+ 			{
+ 				lastElement = maybeNew;
+ 				if (maybeNew.getAttributes().getAttribute("URL") != null)
+ 				{
+ 					SimpleAttributeSet newSet = new SimpleAttributeSet(maybeNew.getAttributes());
+ 					newSet.removeAttribute("URL");
+ 					newSet.removeAttribute("URLOVER");
+ 					sDoc.setCharacterAttributes(maybeNew.getStartOffset(), maybeNew.getEndOffset() - maybeNew.getStartOffset(), newSet, true);
+ 				}
+ 			}
+ 		}
+ 
+ 		// second, parse and mark url runs
+ 		String fullText = doc.getText(0, doc.getLength());
+ 		String splits[] = fullText.split("[ \t\n]");
+ 		int realOffs = 0;
+ 		for(int i = 0; i < splits.length; i++)
+ 		{
+ 			URL maybeUrl = null;
+ 			URI maybeUri = null;
+ 			// lets do it dirty: exception decides if this is a valid url
+ 			try {
+ 				maybeUrl = new URL(splits[i]);
+ 			} catch (MalformedURLException e) {
+ 			}
+ 			
+ 			if(maybeUrl == null)
+ 			{
+ 				try {
+ 					maybeUri = new URI(splits[i]);
+ 					
+ 					if(!uriHasHandler(maybeUri))
+ 						maybeUri = null;
+ 				} catch (URISyntaxException e) {
+ 				}
+ 			}
+ 			
+ 			if(maybeUrl != null || maybeUri != null)
+ 			{
+ 				realOffs = fullText.indexOf(splits[i], realOffs); 
+ 				// we have an url ... now mark the run (from offset to offset + maybeUrl.length()
+ 				MutableAttributeSet newSet = new SimpleAttributeSet();
+ 				newSet.addAttribute("URL", "true");
+ 				
+ 				if(maybeUrl != null)
+ 					((StyledDocument) doc).setCharacterAttributes(realOffs, maybeUrl.toString().length(), newSet, false);
+ 				else
+ 					((StyledDocument) doc).setCharacterAttributes(realOffs, maybeUri.toString().length(), newSet, false);
+ 			} 
+ 		}
+ 	}
+ 
+ 	private boolean uriHasHandler(URI maybeUri) {
+ 		
+ 		if(maybeUri.getScheme() != null)
+ 			return true;
+ 		return false;
  	}

***************
*** 306,310 ****

  	private void writeElement(Writer out, Element element, int pos, int len) throws IOException, BadLocationException {
! 		AttributeSet copySet = element.getAttributes().copyAttributes();
  		LinkedList<String> surroundingTags = new LinkedList<String>();

--- 587,591 ----

  	private void writeElement(Writer out, Element element, int pos, int len) throws IOException, BadLocationException {
! 		AttributeSet copySet = element.getAttributes();
  		LinkedList<String> surroundingTags = new LinkedList<String>();

***************
*** 321,324 ****
--- 602,609 ----
  			surroundingTags.addLast("U");
  		}
+ 		if(copySet.containsAttribute("URL", "true"))
+ 		{
+ 			surroundingTags.addLast("URL");
+ 		}

  		ListIterator i = surroundingTags.listIterator();