/*******************************************************************************
* Copyright (c) 2000, 2005 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 java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IEditorReference;
import org.eclipse.ui.IPropertyListener;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchWindow;
/**
* Closes all editors except ones with unsaved changes.
*/
public class CloseAllSavedAction extends PageEventAction implements
IPropertyListener {
/**
* List of parts (element type: <code>IWorkbenchPart</code>)
* against which this class has outstanding property listeners registered.
*/
private List partsWithListeners = new ArrayList(1);
/**
* Create an instance of this class.
* @param window the window
*/
public CloseAllSavedAction(IWorkbenchWindow window) {
super(WorkbenchMessages.CloseAllSavedAction_text, window);
setToolTipText(WorkbenchMessages.CloseAllSavedAction_toolTip);
// @issue Should create a ID in IWorkbenchActionConstants when it becames API?
setId("closeAllSaved"); //$NON-NLS-1$
updateState();
window.getWorkbench().getHelpSystem().setHelp(this,
IWorkbenchHelpContextIds.CLOSE_ALL_SAVED_ACTION);
setActionDefinitionId("org.eclipse.ui.file.closeAllSaved"); //$NON-NLS-1$
}
/* (non-Javadoc)
* Method declared on PageEventAction.
*/
public void pageActivated(IWorkbenchPage page) {
super.pageActivated(page);
updateState();
}
/* (non-Javadoc)
* Method declared on PageEventAction.
*/
public void pageClosed(IWorkbenchPage page) {
super.pageClosed(page);
updateState();
}
/* (non-Javadoc)
* Method declared on PartEventAction.
*/
public void partClosed(IWorkbenchPart part) {
super.partClosed(part);
if (part instanceof IEditorPart) {
part.removePropertyListener(this);
partsWithListeners.remove(part);
updateState();
}
}
/* (non-Javadoc)
* Method declared on PartEventAction.
*/
public void partOpened(IWorkbenchPart part) {
super.partOpened(part);
if (part instanceof IEditorPart) {
part.addPropertyListener(this);
partsWithListeners.add(part);
updateState();
}
}
/* (non-Javadoc)
* Method declared on IPropertyListener.
*/
public void propertyChanged(Object source, int propID) {
if (source instanceof IEditorPart) {
if (propID == IEditorPart.PROP_DIRTY) {
updateState();
}
}
}
/* (non-Javadoc)
* Method declared on Action.
*/
public void run() {
if (getWorkbenchWindow() == null) {
// action has been dispose
return;
}
IWorkbenchPage page = getActivePage();
if (page != null) {
((WorkbenchPage) page).closeAllSavedEditors();
}
}
/**
* Enable the action if there at least one editor open.
*/
private void updateState() {
IWorkbenchPage page = getActivePage();
if (page == null) {
setEnabled(false);
return;
}
IEditorReference editors[] = page.getEditorReferences();
for (int i = 0; i < editors.length; i++) {
if (!editors[i].isDirty()) {
setEnabled(true);
return;
}
}
setEnabled(false);
}
/* (non-Javadoc)
* Method declared on PageEventAction.
*/
public void dispose() {
super.dispose();
for (Iterator it = partsWithListeners.iterator(); it.hasNext();) {
IWorkbenchPart part = (IWorkbenchPart) it.next();
part.removePropertyListener(this);
}
partsWithListeners.clear();
}
}