/*******************************************************************************
* Copyright (c) 2000, 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.commands.common.EventManager;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.util.SafeRunnable;
import org.eclipse.ui.IPerspectiveDescriptor;
import org.eclipse.ui.IPerspectiveListener;
import org.eclipse.ui.IPerspectiveListener2;
import org.eclipse.ui.IPerspectiveListener3;
import org.eclipse.ui.IPerspectiveListener4;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchPartReference;
import org.eclipse.ui.internal.misc.UIStats;
/**
* Perspective listener list.
*/
public class PerspectiveListenerList extends EventManager {
/**
* PerspectiveListenerList constructor comment.
*/
public PerspectiveListenerList() {
super();
}
/**
* Adds an IPerspectiveListener to the perspective service.
*/
public void addPerspectiveListener(IPerspectiveListener l) {
addListenerObject(l);
}
/**
* Calls a perspective listener with associated performance event instrumentation
*
* @param runnable
* @param listener
* @param perspective
* @param description
*/
private void fireEvent(SafeRunnable runnable, IPerspectiveListener listener, IPerspectiveDescriptor perspective, String description) {
String label = null;//for debugging
if (UIStats.isDebugging(UIStats.NOTIFY_PERSPECTIVE_LISTENERS)) {
label = description + perspective.getId();
UIStats.start(UIStats.NOTIFY_PERSPECTIVE_LISTENERS, label);
}
Platform.run(runnable);
if (UIStats.isDebugging(UIStats.NOTIFY_PERSPECTIVE_LISTENERS)) {
UIStats.end(UIStats.NOTIFY_PERSPECTIVE_LISTENERS, listener, label);
}
}
/**
* Notifies the listener that a perspective has been activated.
*/
public void firePerspectiveActivated(final IWorkbenchPage page,
final IPerspectiveDescriptor perspective) {
Object[] array = getListeners();
for (int nX = 0; nX < array.length; nX++) {
final IPerspectiveListener l = (IPerspectiveListener) array[nX];
fireEvent(new SafeRunnable() {
public void run() {
l.perspectiveActivated(page, perspective);
}
}, l, perspective, "activated::"); //$NON-NLS-1$
}
}
/**
* Notifies the listener that a perspective has been deactivated.
*
* @since 3.2
*/
public void firePerspectivePreDeactivate(final IWorkbenchPage page,
final IPerspectiveDescriptor perspective) {
Object[] array = getListeners();
for (int nX = 0; nX < array.length; nX++) {
if (array[nX] instanceof IPerspectiveListener4) {
final IPerspectiveListener4 l4 = (IPerspectiveListener4) array[nX];
fireEvent(new SafeRunnable() {
public void run() {
l4.perspectivePreDeactivate(page, perspective);
}
}, l4, perspective, "pre-deactivate::"); //$NON-NLS-1$
}
}
}
/**
* Notifies the listener that a perspective has been deactivated.
*
* @since 3.1
*/
public void firePerspectiveDeactivated(final IWorkbenchPage page,
final IPerspectiveDescriptor perspective) {
Object[] array = getListeners();
for (int nX = 0; nX < array.length; nX++) {
if (array[nX] instanceof IPerspectiveListener3) {
final IPerspectiveListener3 l3 = (IPerspectiveListener3) array[nX];
fireEvent(new SafeRunnable() {
public void run() {
l3.perspectiveDeactivated(page, perspective);
}
}, l3, perspective, "deactivated::"); //$NON-NLS-1$
}
}
}
/**
* Notifies the listener that a perspective has been changed.
*/
public void firePerspectiveChanged(final IWorkbenchPage page,
final IPerspectiveDescriptor perspective, final String changeId) {
Object[] array = getListeners();
for (int nX = 0; nX < array.length; nX++) {
final IPerspectiveListener l = (IPerspectiveListener) array[nX];
fireEvent(new SafeRunnable() {
public void run() {
l.perspectiveChanged(page, perspective, changeId);
}
}, l, perspective, "changed::"); //$NON-NLS-1$
}
}
/**
* Notifies the listener that a part has been affected
* in the given perspective.
*
* @since 3.0
*/
public void firePerspectiveChanged(final IWorkbenchPage page,
final IPerspectiveDescriptor perspective,
final IWorkbenchPartReference partRef, final String changeId) {
Object[] array = getListeners();
for (int nX = 0; nX < array.length; nX++) {
if (array[nX] instanceof IPerspectiveListener2) {
final IPerspectiveListener2 l2 = (IPerspectiveListener2) array[nX];
fireEvent(new SafeRunnable() {
public void run() {
l2.perspectiveChanged(page, perspective, partRef,
changeId);
}
}, l2, perspective, "changed::"); //$NON-NLS-1$
}
}
}
/**
* Notifies the listener that a perspective has been closed.
*
* @since 3.1
*/
public void firePerspectiveClosed(final IWorkbenchPage page,
final IPerspectiveDescriptor perspective) {
Object[] array = getListeners();
for (int nX = 0; nX < array.length; nX++) {
if (array[nX] instanceof IPerspectiveListener3) {
final IPerspectiveListener3 l3 = (IPerspectiveListener3) array[nX];
fireEvent(new SafeRunnable() {
public void run() {
l3.perspectiveClosed(page, perspective);
}
}, l3, perspective, "closed::"); //$NON-NLS-1$
}
}
}
/**
* Notifies the listener that a perspective has been opened.
*
* @since 3.1
*/
public void firePerspectiveOpened(final IWorkbenchPage page,
final IPerspectiveDescriptor perspective) {
Object[] array = getListeners();
for (int nX = 0; nX < array.length; nX++) {
if (array[nX] instanceof IPerspectiveListener3) {
final IPerspectiveListener3 l3 = (IPerspectiveListener3) array[nX];
fireEvent(new SafeRunnable() {
public void run() {
l3.perspectiveOpened(page, perspective);
}
}, l3, perspective, "opened::"); //$NON-NLS-1$
}
}
}
/**
* Notifies the listener that a perspective has been deactivated.
*
* @since 3.1
*/
public void firePerspectiveSavedAs(final IWorkbenchPage page,
final IPerspectiveDescriptor oldPerspective,
final IPerspectiveDescriptor newPerspective) {
Object[] array = getListeners();
for (int nX = 0; nX < array.length; nX++) {
if (array[nX] instanceof IPerspectiveListener3) {
final IPerspectiveListener3 l3 = (IPerspectiveListener3) array[nX];
fireEvent(new SafeRunnable() {
public void run() {
l3.perspectiveSavedAs(page, oldPerspective, newPerspective);
}
}, l3, newPerspective, "saveAs::"); //$NON-NLS-1$
}
}
}
/**
* Removes an IPerspectiveListener from the perspective service.
*/
public void removePerspectiveListener(IPerspectiveListener l) {
removeListenerObject(l);
}
}