EDIT

/**

 * Copyright (C) 2007 EDIT

 * European Distributed Institute of Taxonomy

 * http://www.e-taxonomy.eu

 *

 * The contents of this file are subject to the Mozilla Public License Version 1.1

 * See LICENSE.TXT at the top of this package for the full license terms.

 */

package eu.etaxonomy.taxeditor.view.detail;

import java.util.EventObject;

import org.eclipse.jface.util.IPropertyChangeListener;

import org.eclipse.jface.util.PropertyChangeEvent;

import org.eclipse.swt.widgets.Control;

import org.eclipse.ui.forms.SectionPart;

import eu.etaxonomy.cdm.api.facade.DerivedUnitFacade;

import eu.etaxonomy.cdm.api.facade.DerivedUnitFacadeNotSupportedException;

import eu.etaxonomy.cdm.model.description.PolytomousKeyNode;

import eu.etaxonomy.cdm.model.occurrence.DerivedUnit;

import eu.etaxonomy.cdm.model.taxon.TaxonBase;

import eu.etaxonomy.cdm.model.taxon.TaxonRelationship;

import eu.etaxonomy.taxeditor.model.IElementHasDetails;

import eu.etaxonomy.taxeditor.model.MessagingUtils;

import eu.etaxonomy.taxeditor.model.PolytomousKeyRelationship;

import eu.etaxonomy.taxeditor.preference.PreferencesUtil;

import eu.etaxonomy.taxeditor.store.StoreUtil;

import eu.etaxonomy.taxeditor.ui.element.AbstractFormSection;

import eu.etaxonomy.taxeditor.ui.element.ICdmFormElement;

import eu.etaxonomy.taxeditor.ui.section.ITaxonBaseDetailSection;

import eu.etaxonomy.taxeditor.ui.section.key.PolytomousKeyDetailSection;

import eu.etaxonomy.taxeditor.ui.section.key.ScopeRestrictionSection;

import eu.etaxonomy.taxeditor.ui.section.key.TaxonomicScopeSection;

import eu.etaxonomy.taxeditor.ui.section.name.NameRelationshipDetailSection;

import eu.etaxonomy.taxeditor.ui.section.name.NomenclaturalStatusSection;

import eu.etaxonomy.taxeditor.ui.section.name.NonViralNameDetailSection;

import eu.etaxonomy.taxeditor.ui.section.name.ProtologueSection;

import eu.etaxonomy.taxeditor.ui.section.name.TypeDesignationSection;

import eu.etaxonomy.taxeditor.ui.section.occurrence.GeoScopeDetailSection;

import eu.etaxonomy.taxeditor.ui.section.occurrence.IDerivedUnitFacadeDetailSection;

import eu.etaxonomy.taxeditor.ui.section.reference.NomenclaturalReferenceDetailSection;

import eu.etaxonomy.taxeditor.ui.section.taxon.TaxonDetailSection;

/**

 * <p>

 * CdmSectionPart class.

 * </p>

 *

 * @author n.hoffmann

 * @created Feb 8, 2010

 * @version 1.0

 */

public class CdmSectionPart<T> extends SectionPart implements

		IPropertyChangeListener {

    public static String EXPANDED = "expanded";

    public static String COLLAPSED = "collapsed";

	private final AbstractFormSection<T> formSection;

	/**

	 * Initial input

	 */

	private Object rootInput;

	/**

	 * <p>

	 * Constructor for CdmSectionPart.

	 * </p>

	 *

	 * @param section

	 *            a {@link eu.etaxonomy.taxeditor.ui.element.AbstractFormSection}

	 *            object.

	 * @param <T>

	 *            a T object.

	 */

	public CdmSectionPart(AbstractFormSection<T> section) {

		super(section);

		formSection = section;

	}

	/** {@inheritDoc} */

	@Override

	public boolean setFormInput(Object input) {

	    this.rootInput = input;

	    //FIXME (CM): Need to fix this part of the design.

	    //The design seems to be locked to the idea that only one

	    // entity (either from the navigator or the editor) drives

	    // the detail view. In the case of multiple inputs the only workaround

	    // is checking the type and extracting relevant objects.

		if (input instanceof IElementHasDetails) {

			input = ((IElementHasDetails) input).getData();

		}

		if ((input instanceof TaxonBase)

				&& (formSection instanceof ITaxonBaseDetailSection)) {

			((ITaxonBaseDetailSection) formSection)

					.setTaxonBase((TaxonBase) input);

			return true;

		}

		else if (input.getClass().equals(DerivedUnit.class)

				&& (formSection instanceof IDerivedUnitFacadeDetailSection)) {

			try {

				input = DerivedUnitFacade.NewInstance((DerivedUnit) input,

						PreferencesUtil.getDerivedUnitConfigurator());

			} catch (DerivedUnitFacadeNotSupportedException e) {

				MessagingUtils.error(getClass(), e);

			}

		}

		else if (input instanceof PolytomousKeyRelationship) {

			input = ((PolytomousKeyRelationship) input).getDestination();

			if ((input instanceof PolytomousKeyNode) &&

	                (formSection instanceof PolytomousKeyDetailSection ||

	                        formSection instanceof GeoScopeDetailSection ||

	                        formSection instanceof ScopeRestrictionSection ||

	                        formSection instanceof TaxonomicScopeSection)) {

	            input = ((PolytomousKeyNode)input).getKey();

			}

		}

		else if ((input instanceof PolytomousKeyNode) &&

	            (formSection instanceof PolytomousKeyDetailSection ||

	                    formSection instanceof GeoScopeDetailSection ||

	                    formSection instanceof ScopeRestrictionSection ||

	                    formSection instanceof TaxonomicScopeSection)) {

	        input = ((PolytomousKeyNode)input).getKey();

	    } else if ((input instanceof TaxonRelationship)

				&& (formSection instanceof TaxonDetailSection)) {

			((TaxonDetailSection) formSection)

					.setTaxon( ((TaxonRelationship)input).getFromTaxon());

			return true;

		}else if ((input instanceof TaxonRelationship)

				&& (formSection instanceof NonViralNameDetailSection)) {

			((NonViralNameDetailSection) formSection)

					.setTaxonBase( ((TaxonRelationship)input).getFromTaxon());

			return true;

		}else if ((input instanceof TaxonRelationship)

				&& (formSection instanceof NomenclaturalReferenceDetailSection)) {

			((NomenclaturalReferenceDetailSection) formSection)

					.setTaxonBase( ((TaxonRelationship)input).getFromTaxon());

			return true;

		}else if ((input instanceof TaxonRelationship)

				&& (formSection instanceof NomenclaturalStatusSection)) {

			((NomenclaturalStatusSection) formSection)

					.setTaxonBase( ((TaxonRelationship)input).getFromTaxon());

			return true;

		}else if ((input instanceof TaxonRelationship)

				&& (formSection instanceof ProtologueSection)) {

			((ProtologueSection) formSection)

					.setTaxonBase( ((TaxonRelationship)input).getFromTaxon());

			return true;

		}else if ((input instanceof TaxonRelationship)

				&& (formSection instanceof TypeDesignationSection)) {

			((TypeDesignationSection) formSection)

					.setTaxonBase( ((TaxonRelationship)input).getFromTaxon());

			return true;

		}else if ((input instanceof TaxonRelationship)

				&& (formSection instanceof NameRelationshipDetailSection)) {

			((NameRelationshipDetailSection) formSection)

					.setTaxonBase( ((TaxonRelationship)input).getFromTaxon());

			return true;

		}

		formSection.setEntity((T) input);

		return true;

	}

	/*

	 * (non-Javadoc)

	 *

	 * @see

	 * org.eclipse.jface.util.IPropertyChangeListener#propertyChange(org.eclipse

	 * .jface.util.PropertyChangeEvent)

	 */

	/** {@inheritDoc} */

	@Override

	public void propertyChange(PropertyChangeEvent event) {

		if (event != null) {

			Object eventSource = event.getSource();

			if (eventSource instanceof EventObject){

				eventSource = ((EventObject)eventSource).getSource();

			}

			Control[] children = formSection.getLayoutComposite().getChildren();

			boolean containsElement = false;

			for (Control control : children) {

			    if(eventSource.equals(control)){

			        containsElement = true;

			        break;

			    }

            }

			if(containsElement){

			    markDirty();

			}

			else if (formSection.equals(eventSource)){

				markDirty();

			}

			else if(((eventSource instanceof ICdmFormElement)&& formSection.containsFormElement((ICdmFormElement) eventSource))) {

			    markDirty();

			}

		}

	}

	@Override

	protected void expansionStateChanged(boolean expanded) {

	    super.expansionStateChanged(expanded);

	    PreferencesUtil.setStringValue(StoreUtil.getPrefKey(formSection.getClass(), rootInput.getClass().getCanonicalName()), expanded?EXPANDED:COLLAPSED);

	}

}