bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/CloseAllSavedAction.java

/*******************************************************************************
 * Copyright (c) 2000, 2003 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.ui.internal;

import org.eclipse.ui.*;
import org.eclipse.ui.actions.PartEventAction;
import org.eclipse.ui.help.WorkbenchHelp;

/**
 *	Closes all active editors
 */
public class CloseAllSavedAction extends PartEventAction implements IPageListener, IPropertyListener{
	private IWorkbenchWindow workbench;	
/**
 *	Create an instance of this class
 */
public CloseAllSavedAction(IWorkbenchWindow aWorkbench) {
	super(WorkbenchMessages.getString("CloseAllSavedAction.text")); //$NON-NLS-1$
	this.workbench = aWorkbench;
	setToolTipText(WorkbenchMessages.getString("CloseAllSavedAction.toolTip")); //$NON-NLS-1$
	//Should create a ID in IWorkbenchActionConstants when it becames API?
	setId("closeAllSaved"); //$NON-NLS-1$
	updateState();
	aWorkbench.addPageListener(this);
	WorkbenchHelp.setHelp(this, IHelpContextIds.CLOSE_ALL_SAVED_ACTION);
}
/**
 * Notifies this listener that the given page has been activated.
 *
 * @param page the page that was activated
 * @see IWorkbenchWindow#setActivePage
 */
public void pageActivated(org.eclipse.ui.IWorkbenchPage page) {
	updateState();
}
/**
 * Notifies this listener that the given page has been closed.
 *
 * @param page the page that was closed
 * @see IWorkbenchPage#close
 */
public void pageClosed(org.eclipse.ui.IWorkbenchPage page) {
	updateState();
}
/**
 * Notifies this listener that the given page has been opened.
 *
 * @param page the page that was opened
 * @see IWorkbenchWindow#openPage
 */
public void pageOpened(org.eclipse.ui.IWorkbenchPage page) {}
/**
 * A part has been closed.
 */
public void partClosed(IWorkbenchPart part) {
	if (part instanceof IEditorPart) {
		part.removePropertyListener(this);
		updateState();	
	}
}
/**
 * A part has been opened.
 */
public void partOpened(IWorkbenchPart part) {	
	if (part instanceof IEditorPart) {
		part.addPropertyListener(this);
		updateState();	
	}
}
/**
 * Indicates that a property has changed.
 *
 * @param source the object whose property has changed
 * @param propID the property which has changed.  In most cases this property ID
 * should be defined as a constant on the source class.
 */
public void propertyChanged(Object source, int propID) {
	if (source instanceof IEditorPart) {
		if (propID == IEditorPart.PROP_DIRTY) {
			updateState();
		}
	}
}
/**
 *	The user has invoked this action
 */
public void run() {
	WorkbenchPage page = (WorkbenchPage)workbench.getActivePage();
	if (page != null)
		page.closeAllSavedEditors();
}
/**
 * Enable the action if there at least one editor open.
 */
private void updateState() {
	WorkbenchPage page = (WorkbenchPage)workbench.getActivePage();
	if(page == null) {
		setEnabled(false);
		return;
	}
	IEditorReference editors[] = page.getSortedEditors();
	for (int i = 0; i < editors.length; i++) {
		if(!editors[i].isDirty()) {
			setEnabled(true);
			return;
		}
	}
	setEnabled(false);
}
}