/*
 *
 * Created on January 24, 2002
 */

package com.nuance.tools.voicexml.template;
import javax.swing.*;
import org.openide.util.NbBundle;
import org.openide.loaders.DataFolder;
import org.openide.loaders.DataObject;
import org.openide.cookies.*;
import org.openide.loaders.TemplateWizard;
import java.io.File;
import java.io.IOException;
import org.openide.WizardDescriptor.Panel;
import org.openide.filesystems.FileObject;


/** A template wizard iterator (sequence of panels).
 * Used to fill in the second and subsequent panels in the New wizard.
 * Associate this to a template inside a layer using the
 * Sequence of Panels extra property.
 * Create one or more panels from template as needed too.
 *
 * @author  jsinai
 */
public class TemplateWizardIterator implements org.openide.loaders.TemplateWizard.Iterator {

    protected Panel[] createPanels() {
        return new Panel[] {
            new VoicexmlWizardPanel(),
        };
    }

    // And the list of step names:

    protected String[] createSteps () {
        return new String[] {
            null
        };
    }

    public java.util.Set instantiate(final TemplateWizard wiz) throws IOException {

    Runnable r = new Runnable () {
        public void run () {
          try {  
            String name = (String)wiz.getProperty("name");
            FileObject dir = (FileObject)wiz.getProperty("folder");
            if (dir == null) {
                com.nuance.tools.swing.SwingUtils.showErrorMessageDialog(
                      "No V-Builder Project Open",
                      "You must open or create a V-Builder Project first!");
                return;
            }
            DataFolder targetFolder = DataFolder.findFolder (dir);
            DataObject template = wiz.getTemplate();
            DataObject result;
            if (name == null) {
                // Default name.
                result = template.createFromTemplate(targetFolder);
            } else {
                result = template.createFromTemplate(targetFolder, name);
            }
            // Do something with the result, e.g. open it:
            OpenCookie open = (OpenCookie) result.getCookie(OpenCookie.class);
            if (open != null) {
                open.open();
            }
        }  catch (IOException e) {
            com.nuance.tools.swing.SwingUtils.showErrorMessageDialog(
                  "Cannot create file",
                  "Error creating " + wiz.getProperty("name") + ".vxml -- please try a different name");
                return;
        }
    }};
    org.openide.util.Task task = new org.openide.util.Task(r);
    org.openide.util.RequestProcessor.getDefault().post(task);
    return null;
    
    }
    
    // --- The rest probably does not need to be touched. ---

    private transient int index;
    private transient Panel[] panels;
    private transient TemplateWizard wiz;

    private static final long serialVersionUID = 5510302492703140173L;
    
    // You can keep a reference to the TemplateWizard which can
    // provide various kinds of useful information such as
    // the currently selected target name.
    // Also the panels will receive wiz as their "settings" object.
    public void initialize (TemplateWizard wiz) {
        this.wiz = wiz;
        index = 0;
        panels = createPanels ();
        // Make sure list of steps is accurate.
        String[] steps = createSteps ();
        for (int i = 0; i < panels.length; i++) {
            java.awt.Component c = panels[i].getComponent ();
            if (steps[i] == null) {
                // Default step name to component name of panel.
                // Mainly useful for getting the name of the target
                // chooser to appear in the list of steps.
                steps[i] = c.getName ();
            }
            if (c instanceof javax.swing.JComponent) { // assume Swing components
                javax.swing.JComponent jc = (javax.swing.JComponent) c;
                // Step #.
                jc.putClientProperty ("WizardPanel_contentSelectedIndex", new Integer (i)); // NOI18N
                // Step name (actually the whole list for reference).
                jc.putClientProperty ("WizardPanel_contentData", steps); // NOI18N
            }
        }
    }
    public void uninitialize (TemplateWizard wiz) {
        this.wiz = null;
        panels = null;
    }

    // --- WizardDescriptor.Iterator METHODS: ---
    // Note that this is very similar to WizardDescriptor.Iterator, but with a
    // few more options for customization. If you e.g. want to make panels appear
    // or disappear dynamically, go ahead.

    public String name () {
        return NbBundle.getMessage(TemplateWizardIterator.class, "TITLE_x_of_y",
            new Integer (index + 1), new Integer (panels.length));
    }

    public boolean hasNext () {
        return index < panels.length - 1;
    }
    public boolean hasPrevious () {
        return index > 0;
    }
    public void nextPanel () {
        if (! hasNext ()) throw new java.util.NoSuchElementException ();
        index++;
    }
    public void previousPanel () {
        if (! hasPrevious ()) throw new java.util.NoSuchElementException ();
        index--;
    }
    public Panel current() {
        return panels[index];
    }

    // If nothing unusual changes in the middle of the wizard, simply:
    public final void addChangeListener(javax.swing.event.ChangeListener l) {}
    public final void removeChangeListener(javax.swing.event.ChangeListener l) {}
    
 
}