/*
* 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.pages.home;
import java.util.List;
import org.apache.wicket.authroles.authorization.strategies.role.annotations.AuthorizeInstantiation;
import org.apache.wicket.model.IModel;
import org.apache.wicket.request.mapper.parameter.PageParameters;
import org.apache.isis.applib.annotation.Where;
import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
import org.apache.isis.core.metamodel.consent.Consent;
import org.apache.isis.core.metamodel.consent.InteractionInitiatedBy;
import org.apache.isis.core.metamodel.facets.actions.homepage.HomePageFacet;
import org.apache.isis.core.metamodel.spec.ObjectSpecification;
import org.apache.isis.core.metamodel.spec.feature.Contributed;
import org.apache.isis.core.metamodel.spec.feature.ObjectAction;
import org.apache.isis.viewer.wicket.model.models.ActionModel;
import org.apache.isis.viewer.wicket.model.models.EntityModel;
import org.apache.isis.viewer.wicket.ui.ComponentType;
import org.apache.isis.viewer.wicket.ui.pages.PageAbstract;
import org.apache.isis.viewer.wicket.ui.util.Components;
/**
* Web page representing the home page (showing a welcome message).
*/
@AuthorizeInstantiation("org.apache.isis.viewer.wicket.roles.USER")
public class HomePage extends PageAbstract {
private static final long serialVersionUID = 1L;
public HomePage(final PageParameters parameters) {
super(parameters, null);
addChildComponents(themeDiv, null);
buildGui();
addBookmarkedPages(themeDiv);
}
private void buildGui() {
final ObjectAndAction objectAndAction = lookupHomePageAction();
if(objectAndAction != null) {
Components.permanentlyHide(themeDiv, ComponentType.WELCOME);
final IModel<?> actionModel = ActionModel.create(new EntityModel(objectAndAction.objectAdapter), objectAndAction.action);
getComponentFactoryRegistry().addOrReplaceComponent(themeDiv, ComponentType.ACTION_PROMPT, actionModel);
} else {
Components.permanentlyHide(themeDiv, ComponentType.ACTION_PROMPT);
getComponentFactoryRegistry().addOrReplaceComponent(themeDiv, ComponentType.WELCOME, null);
}
}
private static class ObjectAndAction {
ObjectAndAction(final ObjectAdapter serviceAdapter, final ObjectAction objectAction) {
this.objectAdapter = serviceAdapter;
action = objectAction;
}
ObjectAdapter objectAdapter;
ObjectAction action;
}
private ObjectAndAction lookupHomePageAction() {
final List<ObjectAdapter> serviceAdapters = getPersistenceSession().getServices();
for (final ObjectAdapter serviceAdapter : serviceAdapters) {
final ObjectSpecification serviceSpec = serviceAdapter.getSpecification();
final List<ObjectAction> objectActions = serviceSpec.getObjectActions(Contributed.EXCLUDED);
for (final ObjectAction objectAction : objectActions) {
final ObjectAndAction oaa = objectAndActionIfHomePageAndUsable(serviceAdapter, objectAction);
if(oaa != null) {
return oaa;
}
}
}
return null;
}
private ObjectAndAction objectAndActionIfHomePageAndUsable(ObjectAdapter serviceAdapter, ObjectAction objectAction) {
if (!objectAction.containsDoOpFacet(HomePageFacet.class)) {
return null;
}
final Consent visibility =
objectAction.isVisible(
serviceAdapter,
InteractionInitiatedBy.USER,
Where.ANYWHERE);
if (visibility.isVetoed()) {
return null;
}
final Consent usability =
objectAction.isUsable(
serviceAdapter,
InteractionInitiatedBy.USER,
Where.ANYWHERE
);
if (usability.isVetoed()) {
return null;
}
return new ObjectAndAction(serviceAdapter, objectAction);
}
}