ProjectMenu.java

/*
 * Copyright 2015 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * 
 *      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.kie.workbench.common.screens.projecteditor.client.menu;

import java.util.ArrayList;
import java.util.List;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.event.Observes;
import javax.inject.Inject;

import org.guvnor.common.services.project.context.ProjectContext;
import org.guvnor.common.services.project.context.ProjectContextChangeEvent;
import org.kie.workbench.common.services.shared.project.KieProject;
import org.kie.workbench.common.widgets.client.resources.i18n.ToolsMenuConstants;
import org.uberfire.client.mvp.PlaceManager;
import org.uberfire.mvp.Command;
import org.uberfire.workbench.model.menu.MenuFactory;
import org.uberfire.workbench.model.menu.MenuItem;

@ApplicationScoped
public class ProjectMenu {

    private PlaceManager placeManager;
    private ProjectContext context;

    public ProjectMenu() {
        //Zero argument constructor for CDI proxies
    }

    @Inject
    public ProjectMenu( final PlaceManager placeManager,
                        final ProjectContext context ) {
        this.placeManager = placeManager;
        this.context = context;
    }

    private MenuItem projectScreen = MenuFactory.newSimpleItem( ToolsMenuConstants.INSTANCE.ProjectEditor() ).respondsWith(
            new Command() {
                @Override
                public void execute() {
                    placeManager.goTo( "projectScreen" );
                }
            } ).endMenu().build().getItems().get( 0 );

    private MenuItem projectStructureScreen = MenuFactory.newSimpleItem( ToolsMenuConstants.INSTANCE.RepositoryStructure() ).respondsWith(
            new Command() {
                @Override
                public void execute() {
                    placeManager.goTo( "repositoryStructureScreen" );
                }
            } ).endMenu().build().getItems().get( 0 );

    public List<MenuItem> getMenuItems() {
        enableToolsMenuItems( (KieProject) context.getActiveProject() );

        ArrayList<MenuItem> menuItems = new ArrayList<MenuItem>();

        menuItems.add( projectScreen );
        menuItems.add( projectStructureScreen );

        return menuItems;
    }

    public void onProjectContextChanged( @Observes final ProjectContextChangeEvent event ) {
        enableToolsMenuItems( (KieProject) event.getProject() );
    }

    private void enableToolsMenuItems( final KieProject project ) {
        final boolean enabled = ( project != null );
        projectScreen.setEnabled( enabled );
    }

}