//------------------------------------------------------------------------------
// Copyright (c) 2005, 2006 IBM Corporation and others.
// 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:
// IBM Corporation - initial implementation
//------------------------------------------------------------------------------
package org.eclipse.epf.uma.provider;

import java.util.Collection;
import java.util.List;

import org.eclipse.emf.common.notify.AdapterFactory;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.util.ResourceLocator;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.edit.provider.ComposeableAdapterFactory;
import org.eclipse.emf.edit.provider.IEditingDomainItemProvider;
import org.eclipse.emf.edit.provider.IItemLabelProvider;
import org.eclipse.emf.edit.provider.IItemPropertyDescriptor;
import org.eclipse.emf.edit.provider.IItemPropertySource;
import org.eclipse.emf.edit.provider.IStructuredItemContentProvider;
import org.eclipse.emf.edit.provider.ITreeItemContentProvider;
import org.eclipse.emf.edit.provider.ViewerNotification;
import org.eclipse.epf.uma.Task;
import org.eclipse.epf.uma.UmaFactory;
import org.eclipse.epf.uma.UmaPackage;

/**
 * This is the item provider adapter for a {@link org.eclipse.epf.uma.Task} object.
 * <!-- begin-user-doc -->
 * <!-- end-user-doc -->
 * @generated
 */
public class TaskItemProvider extends ContentElementItemProvider implements
		IEditingDomainItemProvider, IStructuredItemContentProvider,
		ITreeItemContentProvider, IItemLabelProvider, IItemPropertySource {
	/**
	 * This constructs an instance from a factory and a notifier.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public TaskItemProvider(AdapterFactory adapterFactory) {
		super(adapterFactory);
	}

	/**
	 * This returns the property descriptors for the adapted class.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public List<IItemPropertyDescriptor> getPropertyDescriptors(Object object) {
		if (itemPropertyDescriptors == null) {
			super.getPropertyDescriptors(object);

			addPerformedByPropertyDescriptor(object);
			addMandatoryInputPropertyDescriptor(object);
			addOutputPropertyDescriptor(object);
			addAdditionallyPerformedByPropertyDescriptor(object);
			addOptionalInputPropertyDescriptor(object);
			addStepsPropertyDescriptor(object);
			addToolMentorsPropertyDescriptor(object);
			addEstimationConsiderationsPropertyDescriptor(object);
		}
		return itemPropertyDescriptors;
	}

	/**
	 * This adds a property descriptor for the Performed By feature.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void addPerformedByPropertyDescriptor(Object object) {
		itemPropertyDescriptors
				.add(createItemPropertyDescriptor(
						((ComposeableAdapterFactory) adapterFactory)
								.getRootAdapterFactory(),
						getResourceLocator(),
						getString("_UI_Task_performedBy_feature"), //$NON-NLS-1$
						getString(
								"_UI_PropertyDescriptor_description", "_UI_Task_performedBy_feature", "_UI_Task_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
						UmaPackage.Literals.TASK__PERFORMED_BY, true, false,
						true, null, null, null));
	}

	/**
	 * This adds a property descriptor for the Mandatory Input feature.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void addMandatoryInputPropertyDescriptor(Object object) {
		itemPropertyDescriptors
				.add(createItemPropertyDescriptor(
						((ComposeableAdapterFactory) adapterFactory)
								.getRootAdapterFactory(),
						getResourceLocator(),
						getString("_UI_Task_mandatoryInput_feature"), //$NON-NLS-1$
						getString(
								"_UI_PropertyDescriptor_description", "_UI_Task_mandatoryInput_feature", "_UI_Task_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
						UmaPackage.Literals.TASK__MANDATORY_INPUT, true, false,
						true, null, null, null));
	}

	/**
	 * This adds a property descriptor for the Output feature.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void addOutputPropertyDescriptor(Object object) {
		itemPropertyDescriptors
				.add(createItemPropertyDescriptor(
						((ComposeableAdapterFactory) adapterFactory)
								.getRootAdapterFactory(),
						getResourceLocator(),
						getString("_UI_Task_output_feature"), //$NON-NLS-1$
						getString(
								"_UI_PropertyDescriptor_description", "_UI_Task_output_feature", "_UI_Task_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
						UmaPackage.Literals.TASK__OUTPUT, true, false, true,
						null, null, null));
	}

	/**
	 * This adds a property descriptor for the Additionally Performed By feature.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void addAdditionallyPerformedByPropertyDescriptor(Object object) {
		itemPropertyDescriptors
				.add(createItemPropertyDescriptor(
						((ComposeableAdapterFactory) adapterFactory)
								.getRootAdapterFactory(),
						getResourceLocator(),
						getString("_UI_Task_additionallyPerformedBy_feature"), //$NON-NLS-1$
						getString(
								"_UI_PropertyDescriptor_description", "_UI_Task_additionallyPerformedBy_feature", "_UI_Task_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
						UmaPackage.Literals.TASK__ADDITIONALLY_PERFORMED_BY,
						true, false, true, null, null, null));
	}

	/**
	 * This adds a property descriptor for the Optional Input feature.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void addOptionalInputPropertyDescriptor(Object object) {
		itemPropertyDescriptors
				.add(createItemPropertyDescriptor(
						((ComposeableAdapterFactory) adapterFactory)
								.getRootAdapterFactory(),
						getResourceLocator(),
						getString("_UI_Task_optionalInput_feature"), //$NON-NLS-1$
						getString(
								"_UI_PropertyDescriptor_description", "_UI_Task_optionalInput_feature", "_UI_Task_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
						UmaPackage.Literals.TASK__OPTIONAL_INPUT, true, false,
						true, null, null, null));
	}

	/**
	 * This adds a property descriptor for the Steps feature.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void addStepsPropertyDescriptor(Object object) {
		itemPropertyDescriptors
				.add(createItemPropertyDescriptor(
						((ComposeableAdapterFactory) adapterFactory)
								.getRootAdapterFactory(),
						getResourceLocator(),
						getString("_UI_Task_steps_feature"), //$NON-NLS-1$
						getString(
								"_UI_PropertyDescriptor_description", "_UI_Task_steps_feature", "_UI_Task_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
						UmaPackage.Literals.TASK__STEPS, true, false, true,
						null, null, null));
	}

	/**
	 * This adds a property descriptor for the Tool Mentors feature.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void addToolMentorsPropertyDescriptor(Object object) {
		itemPropertyDescriptors
				.add(createItemPropertyDescriptor(
						((ComposeableAdapterFactory) adapterFactory)
								.getRootAdapterFactory(),
						getResourceLocator(),
						getString("_UI_Task_toolMentors_feature"), //$NON-NLS-1$
						getString(
								"_UI_PropertyDescriptor_description", "_UI_Task_toolMentors_feature", "_UI_Task_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
						UmaPackage.Literals.TASK__TOOL_MENTORS, true, false,
						true, null, null, null));
	}

	/**
	 * This adds a property descriptor for the Estimation Considerations feature.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void addEstimationConsiderationsPropertyDescriptor(Object object) {
		itemPropertyDescriptors
				.add(createItemPropertyDescriptor(
						((ComposeableAdapterFactory) adapterFactory)
								.getRootAdapterFactory(),
						getResourceLocator(),
						getString("_UI_Task_estimationConsiderations_feature"), //$NON-NLS-1$
						getString(
								"_UI_PropertyDescriptor_description", "_UI_Task_estimationConsiderations_feature", "_UI_Task_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
						UmaPackage.Literals.TASK__ESTIMATION_CONSIDERATIONS,
						true, false, true, null, null, null));
	}

	/**
	 * This specifies how to implement {@link #getChildren} and is used to deduce an appropriate feature for an
	 * {@link org.eclipse.emf.edit.command.AddCommand}, {@link org.eclipse.emf.edit.command.RemoveCommand} or
	 * {@link org.eclipse.emf.edit.command.MoveCommand} in {@link #createCommand}.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Collection<? extends EStructuralFeature> getChildrenFeatures(
			Object object) {
		if (childrenFeatures == null) {
			super.getChildrenFeatures(object);
			childrenFeatures
					.add(UmaPackage.Literals.WORK_DEFINITION__PRECONDITION);
			childrenFeatures
					.add(UmaPackage.Literals.WORK_DEFINITION__POSTCONDITION);
		}
		return childrenFeatures;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	protected EStructuralFeature getChildFeature(Object object, Object child) {
		// Check the type of the specified child object and return the proper feature to use for
		// adding (see {@link AddCommand}) it as a child.

		return super.getChildFeature(object, child);
	}

	/**
	 * This returns Task.gif.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object getImage(Object object) {
		return overlayImage(object, getResourceLocator().getImage(
				"full/obj16/Task")); //$NON-NLS-1$
	}

	/**
	 * This returns the label text for the adapted class.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public String getText(Object object) {
		String label = ((Task) object).getName();
		return label == null || label.length() == 0 ? getString("_UI_Task_type") : //$NON-NLS-1$
				getString("_UI_Task_type") + " " + label; //$NON-NLS-1$ //$NON-NLS-2$
	}

	/**
	 * This handles model notifications by calling {@link #updateChildren} to update any cached
	 * children and by creating a viewer notification, which it passes to {@link #fireNotifyChanged}.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void notifyChanged(Notification notification) {
		updateChildren(notification);

		switch (notification.getFeatureID(Task.class)) {
		case UmaPackage.TASK__PRECONDITION:
		case UmaPackage.TASK__POSTCONDITION:
			fireNotifyChanged(new ViewerNotification(notification, notification
					.getNotifier(), true, false));
			return;
		}
		super.notifyChanged(notification);
	}

	/**
	 * This adds {@link org.eclipse.emf.edit.command.CommandParameter}s describing the children
	 * that can be created under this object.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	protected void collectNewChildDescriptors(
			Collection<Object> newChildDescriptors, Object object) {
		super.collectNewChildDescriptors(newChildDescriptors, object);

		newChildDescriptors.add(createChildParameter(
				UmaPackage.Literals.WORK_DEFINITION__PRECONDITION,
				UmaFactory.eINSTANCE.createConstraint()));

		newChildDescriptors.add(createChildParameter(
				UmaPackage.Literals.WORK_DEFINITION__POSTCONDITION,
				UmaFactory.eINSTANCE.createConstraint()));
	}

	/**
	 * This returns the label text for {@link org.eclipse.emf.edit.command.CreateChildCommand}.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public String getCreateChildText(Object owner, Object feature,
			Object child, Collection<?> selection) {
		Object childFeature = feature;
		Object childObject = child;

		boolean qualify = childFeature == UmaPackage.Literals.METHOD_ELEMENT__OWNED_RULES
				|| childFeature == UmaPackage.Literals.WORK_DEFINITION__PRECONDITION
				|| childFeature == UmaPackage.Literals.WORK_DEFINITION__POSTCONDITION;

		if (qualify) {
			return getString("_UI_CreateChild_text2", //$NON-NLS-1$
					new Object[] { getTypeText(childObject),
							getFeatureText(childFeature), getTypeText(owner) });
		}
		return super.getCreateChildText(owner, feature, child, selection);
	}

	/**
	 * Return the resource locator for this item provider's resources.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public ResourceLocator getResourceLocator() {
		return UmaEditPlugin.INSTANCE;
	}

}