/*
* Copyright 2011 JBoss Inc
*
* 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.drools.guvnor.client.explorer.navigation;
import com.google.gwt.event.shared.EventBus;
import com.google.gwt.event.shared.ResettableEventBus;
import com.google.gwt.user.client.ui.IsWidget;
import com.google.gwt.user.client.ui.Widget;
import org.drools.guvnor.client.explorer.ClientFactory;
import org.drools.guvnor.client.perspective.ChangePerspectiveEvent;
public class NavigationPanel implements ChangePerspectiveEvent.Handler, IsWidget {
private final NavigationPanelView view;
private final ClientFactory clientFactory;
private final ResettableEventBus eventBus;
public NavigationPanel(ClientFactory clientFactory, EventBus eventBus) {
view = clientFactory.getNavigationViewFactory().getNavigationPanelView();
eventBus.addHandler(ChangePerspectiveEvent.TYPE, this);
this.eventBus = new ResettableEventBus(eventBus);
this.clientFactory = clientFactory;
}
public void add(IsWidget header, IsWidget content) {
view.add(header, content);
}
public void onChangePerspective(ChangePerspectiveEvent changePerspectiveEvent) {
view.clear();
eventBus.removeHandlers();
addNavigationItems(changePerspectiveEvent);
}
private void addNavigationItems(ChangePerspectiveEvent changePerspectiveEvent) {
for (NavigationItemBuilder navigationItemBuilder : changePerspectiveEvent.getPerspective().getBuilders(clientFactory, eventBus)) {
addNavigationItem(navigationItemBuilder);
}
}
private void addNavigationItem(NavigationItemBuilder navigationItemBuilder) {
if (navigationItemBuilder.hasPermissionToBuild()) {
view.add(navigationItemBuilder.getHeader(), navigationItemBuilder.getContent());
}
}
public Widget asWidget() {
return view.asWidget();
}
}