Package org.eclipse.ui.internal

Source Code of org.eclipse.ui.internal.DefaultSaveable

/*******************************************************************************
* Copyright (c) 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 API and implementation
******************************************************************************/

package org.eclipse.ui.internal;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.ISaveablePart;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchPart2;
import org.eclipse.ui.IWorkbenchPartReference;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.Saveable;

/**
* A default {@link Saveable} implementation that wrappers a regular
* workbench part (one that does not itself adapt to Saveable).
*
* @since 3.2
*/
public class DefaultSaveable extends Saveable {

  private IWorkbenchPart part;

  /**
   * Creates a new DefaultSaveable.
   *
   * @param part
   *            the part represented by this model
   */
  public DefaultSaveable(IWorkbenchPart part) {
    this.part = part;
  }

  /*
   * (non-Javadoc)
   *
   * @see org.eclipse.ui.Saveable#doSave(org.eclipse.core.runtime.IProgressMonitor)
   */
  public void doSave(IProgressMonitor monitor) {
    if (part instanceof ISaveablePart) {
      ISaveablePart saveable = (ISaveablePart) part;
      saveable.doSave(monitor);
    }
  }

  /*
   * (non-Javadoc)
   *
   * @see org.eclipse.ui.Saveable#getName()
   */
  public String getName() {
    if (part instanceof IWorkbenchPart2) {
      return ((IWorkbenchPart2) part).getPartName();
    }
    return part.getTitle();
  }

  /*
   * (non-Javadoc)
   *
   * @see org.eclipse.ui.Saveable#getImageDescriptor()
   */
  public ImageDescriptor getImageDescriptor() {
    Image image = part.getTitleImage();
    if (image == null) {
      return null;
    }
    return ImageDescriptor.createFromImage(image);
  }

  /*
   * (non-Javadoc)
   *
   * @see org.eclipse.ui.Saveable#getToolTipText()
   */
  public String getToolTipText() {
    return part.getTitleToolTip();
  }

  /*
   * (non-Javadoc)
   *
   * @see org.eclipse.ui.Saveable#isDirty()
   */
  public boolean isDirty() {
    if (part instanceof ISaveablePart) {
      return ((ISaveablePart) part).isDirty();
    }
    return false;
  }

  /* (non-Javadoc)
   * @see java.lang.Object#hashCode()
   */
  public int hashCode() {
    return part.hashCode();
  }

  /* (non-Javadoc)
   * @see java.lang.Object#equals(java.lang.Object)
   */
  public boolean equals(Object obj) {
    if (this == obj)
      return true;
    if (obj == null)
      return false;
    if (getClass() != obj.getClass())
      return false;
    final DefaultSaveable other = (DefaultSaveable) obj;
    if (part == null) {
      if (other.part != null)
        return false;
    } else if (!part.equals(other.part))
      return false;
    return true;
  }
 
  /* (non-Javadoc)
   * @see org.eclipse.ui.Saveable#show(org.eclipse.ui.IWorkbenchPage)
   */
  public boolean show(IWorkbenchPage page) {
    IWorkbenchPartReference reference = page.getReference(part);
    if (reference != null) {
      page.activate(part);
      return true;
    }
    if (part instanceof IViewPart) {
      IViewPart viewPart = (IViewPart) part;
      try {
        page.showView(viewPart.getViewSite().getId(), viewPart
            .getViewSite().getSecondaryId(),
            IWorkbenchPage.VIEW_ACTIVATE);
      } catch (PartInitException e) {
        return false;
      }
      return true;
    }
    return false;
  }

}
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