java/java.debug/src/org/netbeans/modules/java/debug/ErrorNavigatorProviderImpl.java

/*
 * 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.netbeans.modules.java.debug;

import java.awt.BorderLayout;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import javax.swing.ActionMap;
import javax.swing.JComponent;
import javax.swing.JPanel;
import javax.swing.ListSelectionModel;
import org.netbeans.api.java.source.CancellableTask;
import org.netbeans.api.java.source.CompilationInfo;
import org.netbeans.spi.navigator.NavigatorPanel;
import org.openide.explorer.ExplorerManager;
import org.openide.explorer.ExplorerUtils;
import org.openide.explorer.view.BeanTreeView;
import org.openide.util.Lookup;
import org.openide.util.NbBundle;

/**
 *
 * @author Max Sauer
 */
public class ErrorNavigatorProviderImpl implements NavigatorPanel {

    private JComponent panel;
    private final ExplorerManager manager = new ExplorerManager();
    
    /**
     * Default constructor for layer instance.
     */
    public ErrorNavigatorProviderImpl() {
        manager.addPropertyChangeListener(new PropertyChangeListener() {
            public void propertyChange(PropertyChangeEvent evt) {
                if (ExplorerManager.PROP_SELECTED_NODES.equals(evt.getPropertyName())) {
                    TreeNavigatorProviderImpl.setHighlights(ElementNavigatorJavaSourceFactory.getInstance().getFile(), manager);
                }
            }
        });
    }
    
    public String getDisplayName() {
        return NbBundle.getMessage(ErrorNavigatorProviderImpl.class, "NM_Errors");
    }
    
    public String getDisplayHint() {
        return NbBundle.getMessage(ErrorNavigatorProviderImpl.class, "SD_Errors");
    }
    
    public JComponent getComponent() {
        if (panel == null) {
            final BeanTreeView view = new BeanTreeView();
            view.setRootVisible(false);
            view.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
            class Panel extends JPanel implements ExplorerManager.Provider, Lookup.Provider {
                // Make sure action context works correctly:
                private final Lookup lookup = ExplorerUtils.createLookup(manager, new ActionMap());
                {
                    setLayout(new BorderLayout());
                    add(view, BorderLayout.CENTER);
                }
                public ExplorerManager getExplorerManager() {
                    return manager;
                }
                public Lookup getLookup() {
                    return lookup;
                }
            }
            panel = new Panel();
        }
        return panel;
    }

    public Lookup getLookup() {
        return null;
    }

    public void panelActivated(Lookup context) {
        ElementNavigatorJavaSourceFactory.getInstance().setLookup(context, new TaskImpl());
    }

    public void panelDeactivated() {
        ElementNavigatorJavaSourceFactory.getInstance().setLookup(Lookup.EMPTY, null);
    }
    
    private final class TaskImpl implements CancellableTask<CompilationInfo> {
        
        public void cancel() {
        }

        public void run(CompilationInfo info) {
            //XXX set proper root
            manager.setRootContext(ErrorNode.getTree(info));
        }
        
    }
    
}