Status.java

package com.rectang.xsm.pages.cms;

import com.rectang.xsm.io.XSMDocument;
import com.rectang.xsm.UserData;

import java.util.List;

import org.apache.wicket.PageParameters;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.WebMarkupContainer;
import org.apache.wicket.markup.html.form.Button;
import org.apache.wicket.markup.html.form.Form;
import org.apache.wicket.markup.html.list.ListView;
import org.apache.wicket.markup.html.list.ListItem;
import org.apache.wicket.model.Model;
import org.apache.wicket.model.StringResourceModel;

/**
 * The main CMS status tab
 *
 * @author Andrew Williams
 * @version $Id: Status.java 802 2009-05-16 17:25:24Z andy $
 * @since 2.0
 */
public class Status
        extends DocumentPage
{
    public Status( PageParameters parameters )
    {
        super( parameters );
    }

    public void layout()
    {
        super.layout();
        if ( hasError() )
        {
            return;
        }

        XSMDocument xsmDoc = getDoc();

        Label locked = new Label( "locked" );
        if ( xsmDoc.isLocked() )
        {
            locked.setDefaultModel( new StringResourceModel( "locked.is", locked,
                    new Model( new UserData( xsmDoc.getLocked(),
                            getXSMSession().getSite(), false ) ) ) );
        }
        else
        {
            locked.setDefaultModel( new StringResourceModel( "locked.not", locked, null ) );
        }
        add( locked );

        List watcherList = xsmDoc.getWatchers();
        WebMarkupContainer watchers = new WebMarkupContainer( "watchers" );
        watchers.setVisible( watcherList.size() > 0 );
        add( watchers );
        boolean watching = watcherList.contains( getXSMSession().getUser().getUsername() );

        Label watched = new Label( "watched" );
        if ( watcherList.size() == 0 )
        {
            watched.setDefaultModel( new StringResourceModel( "watched.not", watched, null ) );
            (new WebMarkupContainer( "watchers" )).setVisible( false );
        }
        else
        {
            watched.setDefaultModel( new StringResourceModel( "watched.is", watched, null ) );

            watchers.add( new ListView( "watcher", watcherList )
            {
                protected void populateItem( ListItem listItem )
                {
                    listItem.add( new Label( "username", (String) listItem.getModelObject() ) );
                }
            } );
        }
        add( watched );

        // TODO fix the problem where we have to redirect to the same page on success
        Button watch = new Button( "watch" )
        {
            public void onSubmit()
            {
                UserData userdata = getXSMSession().getUser();
                List watchers = getDoc().getWatchers();
                if ( watchers.contains( userdata.getUsername() ) )
                {
                    warn( "You are already watching page " + getDocumentPage().getPath() );
                }
                else
                {
                    watchers.add( userdata.getUsername() );
                    if ( getDoc().setWatchers( watchers, userdata ) )
                    {
                        setResponsePage( Status.class, getPageNameParams() );
                    }
                    else
                    {
                        info( "Failed to add user " + userdata.getUsername() +
                                " to watchers of page " + getDocumentPage().getPath() );
                    }
                }
            }
        };
        Button unwatch = new Button( "unwatch" )
        {
            public void onSubmit()
            {
                UserData userdata = getXSMSession().getUser();

                List watchers = getDoc().getWatchers();
                if ( !watchers.contains( userdata.getUsername() ) )
                {
                    warn( "You are not watching page " + getDocumentPage().getPath() );
                }
                else
                {
                    watchers.remove( userdata.getUsername() );
                    if ( getDoc().setWatchers( watchers, userdata ) )
                    {
                        setResponsePage( Status.class, getPageNameParams() );
                    }
                    else
                    {
                        info( "Failed to remove user " + userdata.getUsername() +
                                " from watchers of page " + getDocumentPage().getPath() );
                    }
                }
            }
        };

        Form update = new Form( "update" );
        watch.setVisible( !watching );
        update.add( watch );
        unwatch.setVisible( watching );
        update.add( unwatch );
        add( update );
    }
}