/*******************************************************************************
 * Copyright (c) 2004 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;

/**
 * This adapter class provides default implementations for the
 * methods described by the <code>IPerspectiveListener</code> interface
 * and its extension interfaces. 
 * <p>
 * Classes that wish to deal with events which occur as perspectives
 * are added, removed, activated and changed, can extend this class 
 * and override only the methods which they are interested in.
 * </p>
 *
 * @see org.eclipse.ui.IPerspectiveListener
 * @see org.eclipse.ui.IPerspectiveListener2
 * @see org.eclipse.ui.IPerspectiveListener3
 * @since 3.1
 */
public class PerspectiveAdapter implements IPerspectiveListener3 {

    /* (non-Javadoc)
     * @see org.eclipse.ui.IPerspectiveListener3#perspectiveOpened(org.eclipse.ui.IWorkbenchPage, org.eclipse.ui.IPerspectiveDescriptor)
     */
    public void perspectiveOpened(IWorkbenchPage page,
            IPerspectiveDescriptor perspective) {
        // do nothing
    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.IPerspectiveListener3#perspectiveClosed(org.eclipse.ui.IWorkbenchPage, org.eclipse.ui.IPerspectiveDescriptor)
     */
    public void perspectiveClosed(IWorkbenchPage page,
            IPerspectiveDescriptor perspective) {
        // do nothing
    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.IPerspectiveListener2#perspectiveChanged(org.eclipse.ui.IWorkbenchPage, org.eclipse.ui.IPerspectiveDescriptor, org.eclipse.ui.IWorkbenchPartReference, java.lang.String)
     */
    public void perspectiveChanged(IWorkbenchPage page,
            IPerspectiveDescriptor perspective,
            IWorkbenchPartReference partRef, String changeId) {
        // do nothing
    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.IPerspectiveListener#perspectiveActivated(org.eclipse.ui.IWorkbenchPage, org.eclipse.ui.IPerspectiveDescriptor)
     */
    public void perspectiveActivated(IWorkbenchPage page,
            IPerspectiveDescriptor perspective) {
        // do nothing
    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.IPerspectiveListener#perspectiveChanged(org.eclipse.ui.IWorkbenchPage, org.eclipse.ui.IPerspectiveDescriptor, java.lang.String)
     */
    public void perspectiveChanged(IWorkbenchPage page,
            IPerspectiveDescriptor perspective, String changeId) {
        // do nothing
    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.IPerspectiveListener3#perspectiveDeactivated(org.eclipse.ui.IWorkbenchPage, org.eclipse.ui.IPerspectiveDescriptor)
     */
    public void perspectiveDeactivated(IWorkbenchPage page, IPerspectiveDescriptor perspective) {
        // do nothing
    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.IPerspectiveListener3#perspectiveSavedAs(org.eclipse.ui.IWorkbenchPage, org.eclipse.ui.IPerspectiveDescriptor, org.eclipse.ui.IPerspectiveDescriptor)
     */
    public void perspectiveSavedAs(IWorkbenchPage page, IPerspectiveDescriptor oldPerspective, IPerspectiveDescriptor newPerspective) {
        // do nothing
    }
}
