/*******************************************************************************
 * Copyright (c) 2008, 2012 Obeo.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Obeo - initial API and implementation
 *******************************************************************************/
package org.eclipse.emf.eef.views.components;

// Start of user code for imports
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.util.BasicDiagnostic;
import org.eclipse.emf.common.util.Diagnostic;
import org.eclipse.emf.common.util.WrappedException;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecore.EcorePackage;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.ecore.util.Diagnostician;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.emf.eef.runtime.api.notify.EStructuralFeatureNotificationFilter;
import org.eclipse.emf.eef.runtime.api.notify.IPropertiesEditionEvent;
import org.eclipse.emf.eef.runtime.api.notify.NotificationFilter;
import org.eclipse.emf.eef.runtime.context.PropertiesEditingContext;
import org.eclipse.emf.eef.runtime.context.impl.EReferencePropertiesEditionContext;
import org.eclipse.emf.eef.runtime.impl.components.SinglePartPropertiesEditingComponent;
import org.eclipse.emf.eef.runtime.impl.notify.PropertiesEditionEvent;
import org.eclipse.emf.eef.runtime.impl.utils.EEFConverterUtil;
import org.eclipse.emf.eef.runtime.policies.PropertiesEditingPolicy;
import org.eclipse.emf.eef.runtime.policies.impl.CreateEditingPolicy;
import org.eclipse.emf.eef.runtime.providers.PropertiesEditingProvider;
import org.eclipse.emf.eef.runtime.ui.widgets.ButtonsModeEnum;
import org.eclipse.emf.eef.runtime.ui.widgets.eobjflatcombo.EObjectFlatComboSettings;
import org.eclipse.emf.eef.views.ViewElement;
import org.eclipse.emf.eef.views.ViewReference;
import org.eclipse.emf.eef.views.ViewsPackage;
import org.eclipse.emf.eef.views.parts.ViewReferencePropertiesEditionPart;
import org.eclipse.emf.eef.views.parts.ViewsViewsRepository;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerFilter;
	

// End of user code

/**
 * @author <a href="mailto:nathalie.lepine@obeo.fr">Nathalie Lepine</a>
 * 
 */
public class ViewReferenceBasePropertiesEditionComponent extends SinglePartPropertiesEditingComponent {

	
	public static String BASE_PART = "Base"; //$NON-NLS-1$

	
	/**
	 * Settings for view EObjectFlatComboViewer
	 */
	private EObjectFlatComboSettings viewSettings;
	
	
	/**
	 * Default constructor
	 * 
	 */
	public ViewReferenceBasePropertiesEditionComponent(PropertiesEditingContext editingContext, EObject viewReference, String editing_mode) {
		super(editingContext, viewReference, editing_mode);
		parts = new String[] { BASE_PART };
		repositoryKey = ViewsViewsRepository.class;
		partKey = ViewsViewsRepository.ViewReference.class;
	}

	/**
	 * {@inheritDoc}
	 * 
	 * @see org.eclipse.emf.eef.runtime.api.component.IPropertiesEditionComponent#initPart(java.lang.Object, int, org.eclipse.emf.ecore.EObject, 
	 *      org.eclipse.emf.ecore.resource.ResourceSet)
	 * 
	 */
	public void initPart(Object key, int kind, EObject elt, ResourceSet allResource) {
		setInitializing(true);
		if (editingPart != null && key == partKey) {
			editingPart.setContext(elt, allResource);
			
			final ViewReference viewReference = (ViewReference)elt;
			final ViewReferencePropertiesEditionPart basePart = (ViewReferencePropertiesEditionPart)editingPart;
			// init values
			if (isAccessible(ViewsViewsRepository.ViewReference.Properties.name))
				basePart.setName(EEFConverterUtil.convertToString(EcorePackage.Literals.ESTRING, viewReference.getName()));
			
			if (isAccessible(ViewsViewsRepository.ViewReference.Properties.referencedView)) {
				// init part
				viewSettings = new EObjectFlatComboSettings(viewReference, ViewsPackage.eINSTANCE.getViewReference_View());
				basePart.initReferencedView(viewSettings);
				// set the button mode
				basePart.setReferencedViewButtonMode(ButtonsModeEnum.BROWSE);
			}
			// init filters
			
			if (isAccessible(ViewsViewsRepository.ViewReference.Properties.referencedView)) {
				basePart.addFilterToReferencedView(new ViewerFilter() {
				
					/**
					 * {@inheritDoc}
					 * 
					 * @see org.eclipse.jface.viewers.ViewerFilter#select(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
					 */
					public boolean select(Viewer viewer, Object parentElement, Object element) {
						return (element instanceof ViewElement);
					}
					
				});
				// Start of user code for additional businessfilters for view
				
				// End of user code
			}
			// init values for referenced views
			
			// init filters for referenced views
			
		}
		setInitializing(false);
	}


	/**
	 * {@inheritDoc}
	 * @see org.eclipse.emf.eef.runtime.impl.components.StandardPropertiesEditionComponent#associatedFeature(java.lang.Object)
	 */
	public EStructuralFeature associatedFeature(Object editorKey) {
		if (editorKey == ViewsViewsRepository.ViewReference.Properties.name) {
			return ViewsPackage.eINSTANCE.getViewElement_Name();
		}
		if (editorKey == ViewsViewsRepository.ViewReference.Properties.referencedView) {
			return ViewsPackage.eINSTANCE.getViewReference_View();
		}
		return super.associatedFeature(editorKey);
	}

	/**
	 * {@inheritDoc}
	 * @see org.eclipse.emf.eef.runtime.impl.components.StandardPropertiesEditionComponent#updateSemanticModel(org.eclipse.emf.eef.runtime.api.notify.IPropertiesEditionEvent)
	 * 
	 */
	public void updateSemanticModel(final IPropertiesEditionEvent event) {
		ViewReference viewReference = (ViewReference)semanticObject;
		if (ViewsViewsRepository.ViewReference.Properties.name == event.getAffectedEditor()) {
			viewReference.setName((java.lang.String)EEFConverterUtil.createFromString(EcorePackage.Literals.ESTRING, (String)event.getNewValue()));
		}
		if (ViewsViewsRepository.ViewReference.Properties.referencedView == event.getAffectedEditor()) {
			if (event.getKind() == PropertiesEditionEvent.SET) {
				viewSettings.setToReference((ViewElement)event.getNewValue());
			} else if (event.getKind() == PropertiesEditionEvent.ADD) {
				EReferencePropertiesEditionContext context = new EReferencePropertiesEditionContext(editingContext, this, viewSettings, editingContext.getAdapterFactory());
				PropertiesEditingProvider provider = (PropertiesEditingProvider)editingContext.getAdapterFactory().adapt(semanticObject, PropertiesEditingProvider.class);
				if (provider != null) {
					PropertiesEditingPolicy policy = provider.getPolicy(context);
					if (policy instanceof CreateEditingPolicy) {
						policy.execute();
					}
				}
			}
		}
	}

	/**
	 * {@inheritDoc}
	 * @see org.eclipse.emf.eef.runtime.impl.components.StandardPropertiesEditionComponent#updatePart(org.eclipse.emf.common.notify.Notification)
	 */
	public void updatePart(Notification msg) {
		super.updatePart(msg);
		if (editingPart.isVisible()) {
			ViewReferencePropertiesEditionPart basePart = (ViewReferencePropertiesEditionPart)editingPart;
			if (ViewsPackage.eINSTANCE.getViewElement_Name().equals(msg.getFeature()) && msg.getNotifier().equals(semanticObject) && basePart != null && isAccessible(ViewsViewsRepository.ViewReference.Properties.name)) {
				if (msg.getNewValue() != null) {
					basePart.setName(EcoreUtil.convertToString(EcorePackage.Literals.ESTRING, msg.getNewValue()));
				} else {
					basePart.setName("");
				}
			}
			if (ViewsPackage.eINSTANCE.getViewReference_View().equals(msg.getFeature()) && basePart != null && isAccessible(ViewsViewsRepository.ViewReference.Properties.referencedView))
				basePart.setReferencedView((EObject)msg.getNewValue());
			
		}
	}

	/**
	 * {@inheritDoc}
	 * 
	 * @see org.eclipse.emf.eef.runtime.impl.components.StandardPropertiesEditionComponent#getNotificationFilters()
	 */
	@Override
	protected NotificationFilter[] getNotificationFilters() {
		NotificationFilter filter = new EStructuralFeatureNotificationFilter(
			ViewsPackage.eINSTANCE.getViewElement_Name(),
			ViewsPackage.eINSTANCE.getViewReference_View()		);
		return new NotificationFilter[] {filter,};
	}


	/**
	 * {@inheritDoc}
	 * 
	 * @see org.eclipse.emf.eef.runtime.impl.components.StandardPropertiesEditionComponent#isRequired(java.lang.Object, int)
	 * 
	 */
	public boolean isRequired(Object key, int kind) {
		return key == ViewsViewsRepository.ViewReference.Properties.name || key == ViewsViewsRepository.ViewReference.Properties.referencedView;
	}

	/**
	 * {@inheritDoc}
	 * 
	 * @see org.eclipse.emf.eef.runtime.impl.components.StandardPropertiesEditionComponent#getHelpContent(java.lang.Object, int)
	 * 
	 */
	public String getHelpContent(Object key, int kind) {
		if (key == ViewsViewsRepository.ViewReference.Properties.name)
			return "The element name"; //$NON-NLS-1$
		if (key == ViewsViewsRepository.ViewReference.Properties.referencedView)
			return "The referenced view"; //$NON-NLS-1$
		return super.getHelpContent(key, kind);
	}

	/**
	 * {@inheritDoc}
	 * 
	 * @see org.eclipse.emf.eef.runtime.api.component.IPropertiesEditionComponent#validateValue(org.eclipse.emf.eef.runtime.api.notify.IPropertiesEditionEvent)
	 * 
	 */
	public Diagnostic validateValue(IPropertiesEditionEvent event) {
		Diagnostic ret = Diagnostic.OK_INSTANCE;
		if (event.getNewValue() != null) {
			try {
				if (ViewsViewsRepository.ViewReference.Properties.name == event.getAffectedEditor()) {
					Object newValue = event.getNewValue();
					if (newValue instanceof String) {
						newValue = EEFConverterUtil.createFromString(ViewsPackage.eINSTANCE.getViewElement_Name().getEAttributeType(), (String)newValue);
					}
					ret = Diagnostician.INSTANCE.validate(ViewsPackage.eINSTANCE.getViewElement_Name().getEAttributeType(), newValue);
				}
			} catch (IllegalArgumentException iae) {
				ret = BasicDiagnostic.toDiagnostic(iae);
			} catch (WrappedException we) {
				ret = BasicDiagnostic.toDiagnostic(we);
			}
		}
		return ret;
	}


}