plugins/org.eclipse.oomph.setup.workingsets.edit/src/org/eclipse/oomph/setup/workingsets/provider/WorkingSetTaskItemProvider.java

/*
 * Copyright (c) 2014-2016 Eike Stepper (Loehne, Germany) and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v2.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v20.html
 *
 * Contributors:
 *    Eike Stepper - initial API and implementation
 */
package org.eclipse.oomph.setup.workingsets.provider;

import org.eclipse.oomph.setup.provider.SetupTaskItemProvider;
import org.eclipse.oomph.setup.workingsets.SetupWorkingSetsPackage;
import org.eclipse.oomph.setup.workingsets.WorkingSetTask;
import org.eclipse.oomph.workingsets.WorkingSet;
import org.eclipse.oomph.workingsets.WorkingSetsFactory;

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.IItemPropertyDescriptor;
import org.eclipse.emf.edit.provider.ItemPropertyDescriptor;
import org.eclipse.emf.edit.provider.ViewerNotification;

import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

/**
 * This is the item provider adapter for a {@link org.eclipse.oomph.setup.workingsets.WorkingSetTask} object.
 * <!-- begin-user-doc -->
 * <!-- end-user-doc -->
 * @generated
 */
public class WorkingSetTaskItemProvider extends SetupTaskItemProvider
{
  /**
   * This constructs an instance from a factory and a notifier.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public WorkingSetTaskItemProvider(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);

      addPrefixPropertyDescriptor(object);
    }
    return itemPropertyDescriptors;
  }

  /**
   * This adds a property descriptor for the Prefix feature.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected void addPrefixPropertyDescriptor(Object object)
  {
    itemPropertyDescriptors.add(createItemPropertyDescriptor(((ComposeableAdapterFactory)adapterFactory).getRootAdapterFactory(), getResourceLocator(),
        getString("_UI_WorkingSetTask_prefix_feature"), //$NON-NLS-1$
        getString("_UI_WorkingSetTask_prefix_description"), //$NON-NLS-1$
        SetupWorkingSetsPackage.Literals.WORKING_SET_TASK__PREFIX, true, false, false, ItemPropertyDescriptor.GENERIC_VALUE_IMAGE, null,
        new String[] { "org.eclipse.ui.views.properties.expert" //$NON-NLS-1$
        }));
  }

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

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  protected boolean shouldComposeCreationImage()
  {
    return true;
  }

  /**
   * This returns the label text for the adapted class.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated NOT
   */
  @Override
  public String getText(Object object)
  {
    WorkingSetTask workingSetTask = (WorkingSetTask)object;

    StringBuilder builder = new StringBuilder();
    Set<String> added = new HashSet<String>();

    for (WorkingSet workingSet : workingSetTask.getWorkingSets())
    {
      String name = workingSet.getName();
      if (added.add(name))
      {
        if (builder.length() != 0)
        {
          builder.append(" + "); //$NON-NLS-1$
        }

        builder.append(name);
      }
    }

    String label = getString("_UI_WorkingSetTask_type"); //$NON-NLS-1$
    if (builder.length() != 0)
    {
      label += " (" + builder + ")"; //$NON-NLS-1$ //$NON-NLS-2$
    }

    return label;
  }

  /**
   * 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(WorkingSetTask.class))
    {
      case SetupWorkingSetsPackage.WORKING_SET_TASK__PREFIX:
        fireNotifyChanged(new ViewerNotification(notification, notification.getNotifier(), false, true));
        return;
      case SetupWorkingSetsPackage.WORKING_SET_TASK__WORKING_SETS:
        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(SetupWorkingSetsPackage.Literals.WORKING_SET_TASK__WORKING_SETS, WorkingSetsFactory.eINSTANCE.createWorkingSet()));
  }

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

}