HeaderTemplate.java

/**
 * Licensed to the Austrian Association for Software Tool Integration (AASTI)
 * under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright
 * ownership. The AASTI licenses this file to you 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.openengsb.ui.admin.global.header;

import java.util.List;
import java.util.Locale;

import javax.inject.Inject;
import javax.inject.Named;

import org.apache.wicket.authroles.authentication.AuthenticatedWebSession;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.image.Image;
import org.apache.wicket.markup.html.link.BookmarkablePageLink;
import org.apache.wicket.markup.html.link.Link;
import org.apache.wicket.markup.html.list.ListItem;
import org.apache.wicket.markup.html.list.ListView;
import org.apache.wicket.markup.html.panel.Panel;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.StringResourceModel;
import org.apache.wicket.protocol.http.WebSession;
import org.openengsb.core.api.context.ContextCurrentService;
import org.openengsb.core.api.context.ContextHolder;
import org.openengsb.ui.admin.index.Index;
import org.openengsb.ui.admin.loginPage.LoginPage;
import org.openengsb.ui.admin.model.OpenEngSBFallbackVersion;
import org.openengsb.ui.api.OpenEngSBVersionService;
import org.openengsb.ui.common.OpenEngSBWebSession;
import org.openengsb.ui.common.resources.images.CommonPictureLocator;

@SuppressWarnings("serial")
public class HeaderTemplate extends Panel {

    @Inject
    @Named("openengsbVersion")
    private OpenEngSBFallbackVersion openengsbVersion;
    @Inject
    @Named("openengsbVersionService")
    private List<OpenEngSBVersionService> openengsbVersionService;
    @Inject
    @Named("contextCurrentService")
    private ContextCurrentService contextService;

    public HeaderTemplate(String id) {
        super(id);

        baseInitialization();
        initializeTopMenu();
    }

    private void baseInitialization() {

        BookmarkablePageLink<Index> homelink = new BookmarkablePageLink<Index>("logo", Index.class);
        homelink.add(new Image("topImage", CommonPictureLocator.getGreyscaleLogo()));
        add(homelink);

        if (openengsbVersionService == null || openengsbVersionService.size() == 0) {
            if (openengsbVersion == null) {
                add(new Label("version", new StringResourceModel("unknown.version", this, null)));
            } else {
                add(new Label("version", openengsbVersion.getVersionNumber()));
            }
            return;
        } else {
            add(new Label("version", openengsbVersionService.get(0).getOpenEngSBVersion()));
        }
    }

    private void initializeTopMenu() {
        Link<Object> link = new Link<Object>("logout") {
            @Override
            public void onClick() {
                boolean signedIn = ((OpenEngSBWebSession) WebSession.get()).isSignedIn();
                if (signedIn) {
                    ((AuthenticatedWebSession) getSession()).signOut();
                }
                setResponsePage(LoginPage.class);
            }
        };
        add(link);

        // Adds the context choice list
        final Label projectLabel = new Label("currentProject", new IModel<String>() {

            @Override
            public void detach() {
            }

            @Override
            public String getObject() {
                return ContextHolder.get().getCurrentContextId();
            }

            @Override
            public void setObject(String object) {
            }
        });
        add(projectLabel);

        ListView<String> avaliableContexts = new ListView<String>("availableContexts",
            contextService.getAvailableContexts()) {

            @Override
            protected void populateItem(ListItem<String> item) {
                item.add(new Link<String>("availableContext", item.getModel()) {

                    @Override
                    public void onClick() {
                        String obj = getModelObject();
                        ContextHolder.get().setCurrentContextId(obj);
                        setResponsePage(this.getPage());
                    }
                }.add(new Label("availableContextLabel", item.getModelObject())));
            }
        };
        add(avaliableContexts);

        // Adds the language choice list
        final Label languageLabel = new Label("currentLanguage", new IModel<String>() {

            @Override
            public void detach() {
            }

            @Override
            public String getObject() {
                return getSession().getLocale().getDisplayLanguage();
            }

            @Override
            public void setObject(String object) {
            }
        });
        languageLabel.setOutputMarkupId(true);
        add(languageLabel);

        add(new Link<Object>("lang.en") {

            @Override
            public void onClick() {
                getSession().setLocale(Locale.ENGLISH);
                setResponsePage(this.getPage());
            }
        });

        add(new Link<Object>("lang.de") {

            @Override
            public void onClick() {
                getSession().setLocale(Locale.GERMAN);
                setResponsePage(this.getPage());
            }
        });
    }
}