[Kafenio-cvs-commit] kafenio_main/src/de/xeinfach/kafenio/action HyperlinkAction.java,NONE,1.1

[<ne...@pr...>]

Update of /cvsroot/kafenio/kafenio_main/src/de/xeinfach/kafenio/action
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv26488/src/de/xeinfach/kafenio/action

Added Files:
	HyperlinkAction.java 
Log Message:
added new Hyperlink insertion dialog from maxym (insert link from server is currently not available.)

--- NEW FILE: HyperlinkAction.java ---
package de.xeinfach.kafenio.action;

import de.xeinfach.kafenio.KafenioMenuItem;
import de.xeinfach.kafenio.KafenioPanel;
import de.xeinfach.kafenio.util.Translatrix;

import java.awt.event.ActionEvent;
import java.util.Arrays;
import java.util.Enumeration;
import java.util.Vector;

import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
import javax.swing.JTextPane;
import javax.swing.text.BadLocationException;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyledEditorKit;
import javax.swing.text.html.HTML;
import javax.swing.text.html.HTMLDocument;

/**
 *
 * @author  Maxym Mykhalchuk
 */
public class HyperlinkAction extends StyledEditorKit.StyledTextAction {
    
    private KafenioPanel parentKafenio;
    
    /** 
     * Creates a new instance of HyperlinkAction
     * @param kafenio the parent KafenioPanel object. 
     */
    public HyperlinkAction(KafenioPanel kafenio) {
        super(Translatrix.getTranslationString("InsertAnchor") + KafenioMenuItem.DOTS);
        this.parentKafenio = kafenio;
    }
    
    /** 
     * The method, which actually does insertion of a link.
     * @param event the ActionEvent to process.
     */
    public void actionPerformed(ActionEvent event) {
        JTextPane pane = parentKafenio.getTextPane();
        HTMLDocument document = ((HTMLDocument) pane.getDocument());
        Object attrs = pane.getCharacterAttributes().getAttribute(HTML.Tag.A);
        
        // if the link is not under the caret, and the selection is not empty,
        // then checking the whole selection
        int caret = pane.getCaretPosition();
        int selStart = pane.getSelectionStart();
        int selEnd = pane.getSelectionEnd();
        
        if( ( attrs == null ) && ( selEnd > selStart ) ) {
            for(int i=selStart; i<selEnd; i++) {
                pane.setCaretPosition(i);
                attrs = pane.getCharacterAttributes().getAttribute(HTML.Tag.A);
                if( attrs != null )
                    break;
            }
            pane.setCaretPosition(caret);
            pane.select(selStart, selEnd);
        }
        
        String currentLink = "";
        String currentTarget = "";
        if( (attrs != null) && (attrs instanceof SimpleAttributeSet) ) {
            SimpleAttributeSet as = (SimpleAttributeSet)attrs;
            Enumeration names = as.getAttributeNames();
            while(names.hasMoreElements()) {
                Object name = names.nextElement();
                if(name.toString().toLowerCase().equals("href")) {
                    currentLink = as.getAttribute(name).toString();
                }
                else if(name.toString().toLowerCase().equals("target")) {
                    currentTarget = as.getAttribute(name).toString();
                }
            }
        }
                
        JTextField text = new JTextField(20);
        if( selEnd > selStart ) {
            text.setText(pane.getSelectedText());
        }
        
        JTextField url = new JTextField(currentLink, 20);
        
        Vector targets = new Vector(Arrays.asList(new String[] {"", "_new", "_blank", "_parent", "top"}));
        if( targets.indexOf(currentTarget) == -1 )
            targets.add(0,currentTarget);
        JComboBox target = new JComboBox(targets);
        target.setEditable(true);
        
        
        Object[] controls = new Object[] {
            new JLabel(Translatrix.getTranslationString("InsertAnchorTextField")),
            text,
            new JLabel(Translatrix.getTranslationString("InsertAnchorURLField")),
            url,
            new JLabel(Translatrix.getTranslationString("InsertAnchorTargetField")),
            target
        };
        
        Object[] options;
        if( attrs != null )
            options = new String[] {
                Translatrix.getTranslationString("InsertAnchorInsertLinkButton"), 
                Translatrix.getTranslationString("DialogCancel"), 
                Translatrix.getTranslationString("InsertAnchorRemoveLinkButton")};
        else
            options = new String[] {
                Translatrix.getTranslationString("InsertAnchorInsertLinkButton"), 
                Translatrix.getTranslationString("DialogCancel")};
        
        int option = JOptionPane.showOptionDialog(
            parentKafenio, 
            controls, 
            Translatrix.getTranslationString("AnchorDialogTitle"), 
            JOptionPane.DEFAULT_OPTION,
            JOptionPane.PLAIN_MESSAGE,
            null,
            options, 
            options[0] );
        
        SimpleAttributeSet as = new SimpleAttributeSet(pane.getCharacterAttributes().copyAttributes());
        switch( option ) {
            case 0: // insert link
                // removing previous link
                as.removeAttribute(HTML.Tag.A);
                SimpleAttributeSet a = new SimpleAttributeSet();
                a.addAttribute(HTML.Attribute.HREF, url.getText());
                if( target.getSelectedItem().toString() != "" )
                    a.addAttribute(HTML.Attribute.TARGET, target.getSelectedItem().toString());
                as.addAttribute(HTML.Tag.A, a);
                
                // and adding new link
                try {
                    if( selEnd > selStart )
                        document.remove(selStart, selEnd-selStart);
                    document.insertString(selStart, text.getText(), as);
                }
                catch( BadLocationException ble ) {
                    System.out.println("BadLocationException in insertLink: "+ble.getLocalizedMessage());
                }
                break;
            case 2: // remove link
                as.removeAttribute(HTML.Tag.A);
                if( selEnd > selStart )
                    document.setCharacterAttributes(selStart, selEnd-selStart, as, true);
                break;
            case 1: // cancel
            case JOptionPane.CLOSED_OPTION:
                break;
        }
        
    }
}