/*******************************************************************************
* 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.IPageListener;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.internal.misc.UIStats;
/**
* Part listener list.
*/
public class PageListenerList extends EventManager {
/**
* PartNotifier constructor comment.
*/
public PageListenerList() {
super();
}
/**
* Adds an IPartListener to the part service.
*/
public void addPageListener(IPageListener l) {
addListenerObject(l);
}
/**
* Calls a page listener with associated performance event instrumentation
*
* @param runnable
* @param listener
* @param page
* @param description
*/
private void fireEvent(SafeRunnable runnable, IPageListener listener, IWorkbenchPage page, String description) {
String label = null;//for debugging
if (UIStats.isDebugging(UIStats.NOTIFY_PAGE_LISTENERS)) {
label = description + page.getLabel();
UIStats.start(UIStats.NOTIFY_PAGE_LISTENERS, label);
}
Platform.run(runnable);
if (UIStats.isDebugging(UIStats.NOTIFY_PAGE_LISTENERS)) {
UIStats.end(UIStats.NOTIFY_PAGE_LISTENERS, listener, label);
}
}
/**
* Notifies the listener that a part has been activated.
*/
public void firePageActivated(final IWorkbenchPage page) {
Object[] array = getListeners();
for (int i = 0; i < array.length; i++) {
final IPageListener l = (IPageListener) array[i];
fireEvent(new SafeRunnable() {
public void run() {
l.pageActivated(page);
}
}, l, page, "activated::"); //$NON-NLS-1$
}
}
/**
* Notifies the listener that a part has been closed
*/
public void firePageClosed(final IWorkbenchPage page) {
Object[] array = getListeners();
for (int i = 0; i < array.length; i++) {
final IPageListener l = (IPageListener) array[i];
fireEvent(new SafeRunnable() {
public void run() {
l.pageClosed(page);
}
}, l, page, "closed::"); //$NON-NLS-1$
}
}
/**
* Notifies the listener that a part has been opened.
*/
public void firePageOpened(final IWorkbenchPage page) {
Object[] listeners = getListeners();
for (int i = 0; i < listeners.length; i++) {
final IPageListener l = (IPageListener) listeners[i];
fireEvent(new SafeRunnable() {
public void run() {
l.pageOpened(page);
}
}, l, page, "opened::"); //$NON-NLS-1$
}
}
/**
* Removes an IPartListener from the part service.
*/
public void removePageListener(IPageListener l) {
removeListenerObject(l);
}
}