package sidekick.css;

import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.*;
import org.gjt.sp.jedit.jEdit;
import org.gjt.sp.jedit.EditBus;
import org.gjt.sp.jedit.EBComponent;
import org.gjt.sp.jedit.msg.PropertiesChanged;

/**
 * This is a toolbar to be added to SideKick. It provides the ability to sort
 * by line or name and toggle line numbers on and off without having to open
 * the plugin option panes.
 */
public class CSSModeToolBar extends JPanel {

    private JMenuItem byLine;
    private JMenuItem byName;
    private JCheckBoxMenuItem toggleLineNumbers;
    
    private EBComponent parent;
    
    public static final int SORT_BY_LINE = 0;
    public static final int SORT_BY_NAME = 1;
    
    /**
     * @param parent An EBComponent to include with PropertyChanged messages.
     * This will be a JavaParser.
     */
    public CSSModeToolBar( EBComponent parent ) {
        this.parent = parent;
        installComponents();
        installListeners();
    }

    private void installComponents() {
        JMenuBar menuBar = new JMenuBar();

        JMenu sortMenu = new JMenu( jEdit.getProperty("options.sidekick.css.sortBy", "Sorting") );
        byLine = new JMenuItem( jEdit.getProperty("options.sidekick.css.sortByLine", "Line") );
        byName = new JMenuItem( jEdit.getProperty("options.sidekick.css.sortByName", "Name") );

        toggleLineNumbers = new JCheckBoxMenuItem( jEdit.getProperty("options.sidekick.css.showLineNums", "Line Numbers") );
        toggleLineNumbers.setSelected( jEdit.getBooleanProperty( "sidekick.css.showLineNums", false ) );

        add( menuBar );
        menuBar.add( sortMenu );

        sortMenu.add( byLine );
        sortMenu.add( byName );

        menuBar.add( toggleLineNumbers );
    }

    private void installListeners() {
        byLine.addActionListener(
            new ActionListener() {
                public void actionPerformed( ActionEvent ae ) {
                    jEdit.setIntegerProperty( "sidekick.css.sortBy", SORT_BY_LINE );
                    EditBus.send( new PropertiesChanged( parent ) );
                }
            }
        );

        byName.addActionListener(
            new ActionListener() {
                public void actionPerformed( ActionEvent ae ) {
                    jEdit.setIntegerProperty( "sidekick.css.sortBy", SORT_BY_NAME );
                    EditBus.send( new PropertiesChanged( parent ) );
                }
            }
        );

        toggleLineNumbers.addActionListener(
            new ActionListener() {
                public void actionPerformed( ActionEvent ae ) {
                    jEdit.setBooleanProperty( "sidekick.css.showLineNums", toggleLineNumbers.isSelected() );
                    EditBus.send( new PropertiesChanged( parent ) );
                }
            }
        );
    }
}