/*
    * Copyright (C) 2007-2012 Argeo GmbH
    *
    * 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.argeo.eclipse.ui.jcr;
  
  import javax.jcr.Node;
  import javax.jcr.Property;
  import javax.jcr.RepositoryException;
  import javax.jcr.nodetype.NodeType;
  
  import org.argeo.eclipse.ui.EclipseUiException;
  import org.eclipse.jface.viewers.ColumnLabelProvider;
  import org.eclipse.swt.graphics.Image;
  
  /**
   * Default label provider to manage node and corresponding UI objects. It
   * provides reasonable overwrite-able default for known JCR types.
   */
  public class DefaultNodeLabelProvider extends ColumnLabelProvider {
  	private static final long serialVersionUID = 1216182332792151235L;
  
  	public String getText(Object element) {
  		try {
  			if (element instanceof Node) {
  				return getText((Node) element);
  			} else if (element instanceof WrappedNode) {
  				return getText(((WrappedNode) element).getNode());
  			} else if (element instanceof NodesWrapper) {
  				return getText(((NodesWrapper) element).getNode());
  			}
  			return super.getText(element);
  		} catch (RepositoryException e) {
  			throw new EclipseUiException("Cannot get text for of " + element, e);
  		}
  	}
  
  	protected String getText(Node node) throws RepositoryException {
  		if (node.isNodeType(NodeType.MIX_TITLE)
  				&& node.hasProperty(Property.JCR_TITLE))
  			return node.getProperty(Property.JCR_TITLE).getString();
  		else
  			return node.getName();
  	}
  
  	@Override
  	public Image getImage(Object element) {
  		try {
  			if (element instanceof Node) {
  				return getImage((Node) element);
  			} else if (element instanceof WrappedNode) {
  				return getImage(((WrappedNode) element).getNode());
  			} else if (element instanceof NodesWrapper) {
  				return getImage(((NodesWrapper) element).getNode());
  			}
  		} catch (RepositoryException e) {
  			throw new EclipseUiException("Cannot retrieve image for " + element, e);
  		}
  		return super.getImage(element);
  	}
  
  	protected Image getImage(Node node) throws RepositoryException {
  		// FIXME who uses that?
  		return null;
  	}
  
  	@Override
  	public String getToolTipText(Object element) {
  		try {
  			if (element instanceof Node) {
  				return getToolTipText((Node) element);
  			} else if (element instanceof WrappedNode) {
  				return getToolTipText(((WrappedNode) element).getNode());
  			} else if (element instanceof NodesWrapper) {
  				return getToolTipText(((NodesWrapper) element).getNode());
  			}
  		} catch (RepositoryException e) {
  			throw new EclipseUiException("Cannot get tooltip for " + element, e);
  		}
  		return super.getToolTipText(element);
  	}
  
  	protected String getToolTipText(Node node) throws RepositoryException {
  		return null;
  	}
  }