/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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.apache.isis.viewer.wicket.ui.components.widgets.breadcrumbs;
import java.util.Collection;
import com.vaynberg.wicket.select2.Response;
import com.vaynberg.wicket.select2.Select2Choice;
import com.vaynberg.wicket.select2.Settings;
import com.vaynberg.wicket.select2.TextChoiceProvider;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.form.AjaxFormComponentUpdatingBehavior;
import org.apache.wicket.markup.head.IHeaderResponse;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.Model;
import org.apache.isis.core.runtime.system.context.IsisContext;
import org.apache.isis.core.commons.authentication.MessageBroker;
import org.apache.isis.viewer.wicket.model.mementos.PageParameterNames;
import org.apache.isis.viewer.wicket.model.models.EntityModel;
import org.apache.isis.viewer.wicket.ui.errors.JGrowlUtil;
import org.apache.isis.viewer.wicket.ui.pages.PageClassRegistry;
import org.apache.isis.viewer.wicket.ui.pages.PageClassRegistryAccessor;
import org.apache.isis.viewer.wicket.ui.pages.entity.EntityPage;
import org.apache.isis.viewer.wicket.ui.panels.PanelAbstract;
import org.apache.isis.viewer.wicket.ui.panels.PanelUtil;
public class BreadcrumbPanel extends PanelAbstract<IModel<Void>> {
private static final long serialVersionUID = 1L;
private static final String ID_BREADCRUMBS = "breadcrumbs";
public BreadcrumbPanel(String id) {
super(id);
}
@Override
protected void onInitialize() {
super.onInitialize();
final BreadcrumbModelProvider session = (BreadcrumbModelProvider) getSession();
final BreadcrumbModel breadcrumbModel = session.getBreadcrumbModel();
final IModel<EntityModel> entityModel = new Model<EntityModel>();
final Select2Choice<EntityModel> breadcrumbChoice = new Select2Choice<EntityModel>(ID_BREADCRUMBS, entityModel);
breadcrumbChoice.add(
new AjaxFormComponentUpdatingBehavior("change"){
private static final long serialVersionUID = 1L;
@Override
protected void onUpdate(AjaxRequestTarget target) {
final String oidStr = breadcrumbChoice.getInput();
final EntityModel selectedModel = breadcrumbModel.lookup(oidStr);
if(selectedModel == null) {
final MessageBroker messageBroker = IsisContext.getAuthenticationSession().getMessageBroker();
messageBroker.addWarning("Cannot find object");
String feedbackMsg = JGrowlUtil.asJGrowlCalls(messageBroker);
target.appendJavaScript(feedbackMsg);
breadcrumbModel.remove(oidStr);
return;
}
setResponsePage(EntityPage.class, selectedModel.getPageParameters());
}
});
final Settings settings = breadcrumbChoice.getSettings();
settings.setMinimumInputLength(0);
settings.setWidth("100%");
breadcrumbChoice.setProvider(new TextChoiceProvider<EntityModel>() {
private static final long serialVersionUID = 1L;
@Override
protected String getDisplayText(EntityModel choice) {
return breadcrumbModel.titleFor(choice);
}
@Override
protected Object getId(EntityModel choice) {
try {
return PageParameterNames.OBJECT_OID.getStringFrom(choice.getPageParameters());
} catch(Exception ex) {
breadcrumbModel.remove(choice);
return null;
}
}
@Override
public void query(String term, int page, Response<EntityModel> response) {
response.addAll(breadcrumbModel.getList());
}
@Override
public Collection<EntityModel> toChoices(Collection<String> ids) {
return breadcrumbModel.getList();
}
});
addOrReplace(breadcrumbChoice);
}
@Override
public void renderHead(IHeaderResponse response) {
super.renderHead(response);
PanelUtil.renderHead(response, BreadcrumbPanel.class);
}
// //////////////////////////////////////
protected PageClassRegistry getPageClassRegistry() {
final PageClassRegistryAccessor pcra = (PageClassRegistryAccessor) getApplication();
return pcra.getPageClassRegistry();
}
}