# BasePage.java

    /*
     * Copyright 2011 Marc Grue.
     *
     * Licensed  under the  Apache License,  Version 2.0  (the "License");
     * you may not use  this file  except in  compliance with the License.
     * You may obtain a copy of the License at
     *
     *   http://www.apache.org/licenses/LICENSE-2.0
     *
     * Unless required by applicable law or agreed to in writing, software
     * distributed  under the  License is distributed on an "AS IS" BASIS,
     * WITHOUT  WARRANTIES OR CONDITIONS  OF ANY KIND, either  express  or
     * implied.
     *
     * See the License for the specific language governing permissions and
     * limitations under the License.
     */
    package org.qi4j.sample.dcicargo.sample_b.communication.web;

    import com.google.code.joliratools.StatelessAjaxFallbackLink;
    import org.apache.wicket.AttributeModifier;
    import org.apache.wicket.ajax.AjaxRequestTarget;
    import org.apache.wicket.markup.html.basic.Label;
    import org.apache.wicket.markup.html.link.Link;
    import org.apache.wicket.markup.html.panel.Fragment;
    import org.apache.wicket.model.Model;
    import org.apache.wicket.request.mapper.parameter.PageParameters;
    import org.qi4j.sample.dcicargo.sample_b.infrastructure.WicketQi4jApplication;
    import org.qi4j.sample.dcicargo.sample_b.infrastructure.wicket.page.BaseWebPage;
    import org.qi4j.sample.dcicargo.sample_b.infrastructure.wicket.tabs.TabsPanel;
    //import org.wicketstuff.stateless.StatelessAjaxFallbackLink;

    /**
     * Base Wicket page of the DCI Sample application
     */
    public class BasePage extends BaseWebPage
    {
        private final Link toggleLinks;
        private static boolean showLInks = false;
        private Fragment links = new Fragment( "links", "linksFragment", this );

        public BasePage( String activeTab )
        {
            this( activeTab, null );
        }

        public BasePage( String activeTab, PageParameters pageParameters )
        {
            super( pageParameters );

            toggleLinks = new StatelessAjaxFallbackLink<Void>( "toggleLinks" )
            {
                @Override
                public void onClick( AjaxRequestTarget target )
                {
                    // Open/close triangle of this toggle link
                    add( new AttributeModifier( "class", Model.of( showLInks ? "closed" : "open" ) ) );

                    // Show/hide links
                    links.setVisible( showLInks = !showLInks );

                    // Update with ajax if browser allows
                    if( target != null )
                    {
                        target.add( links, toggleLinks );
                    }
                }
            };
            add( toggleLinks );
            add( links.setOutputMarkupPlaceholderTag( true ).setVisible( false ) );

            add( new Label( "version", ( (WicketQi4jApplication) getApplication() ).appVersion() ) );

            add( new TabsPanel( activeTab ) );
        }
    }