/*******************************************************************************
 * 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.IEditorPart;
import org.eclipse.ui.ISaveablePart;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.help.WorkbenchHelp;

/**
 * Workbench common <code>Save As</code> action.
 */
public class SaveAsAction extends BaseSaveAction {
	
	/**
	 *	Create an instance of this class
	 */
	public SaveAsAction(IWorkbenchWindow window) {
		super(WorkbenchMessages.getString("SaveAs.text"), window); //$NON-NLS-1$
		setActionDefinitionId("org.eclipse.ui.file.saveAs"); //$NON-NLS-1$
		setText(WorkbenchMessages.getString("SaveAs.text")); //$NON-NLS-1$
		setToolTipText(WorkbenchMessages.getString("SaveAs.toolTip")); //$NON-NLS-1$
		setId("saveAs"); //$NON-NLS-1$
		WorkbenchHelp.setHelp(this, IHelpContextIds.SAVE_AS_ACTION);
		setImageDescriptor(
			WorkbenchImages.getImageDescriptor(
				IWorkbenchGraphicConstants.IMG_ETOOL_SAVEAS_EDIT));
		setDisabledImageDescriptor(
			WorkbenchImages.getImageDescriptor(
				IWorkbenchGraphicConstants.IMG_ETOOL_SAVEAS_EDIT_DISABLED));
	}
	
	/* (non-Javadoc)
	 * Method declared on Action.
	 */
	public void run() {
		if (getWorkbenchWindow() == null) {
			// action has been disposed
			return;
		}
		/* **********************************************************************************
		 * The code below was added to track the view with focus
		 * in order to support save actions from a view. Remove this
		 * experimental code if the decision is to not allow views to 
		 * participate in save actions (see bug 10234) 
		 */
		ISaveablePart saveView = getSaveableView();
		if (saveView != null) {
			saveView.doSaveAs();
			return;
		}
		/* **********************************************************************************/

		IEditorPart editor = getActiveEditor();
		if (editor != null) {
			editor.doSaveAs();
		}
	}
	
	/* (non-Javadoc)
	 * Method declared on ActiveEditorAction.
	 */
	protected void updateState() {
		/* **********************************************************************************
		 * The code below was added to track the view with focus
		 * in order to support save actions from a view. Remove this
		 * experimental code if the decision is to not allow views to 
		 * participate in save actions (see bug 10234) 
		 */
		ISaveablePart saveView = getSaveableView();
		if (saveView != null) {
			setEnabled(saveView.isSaveAsAllowed());
			return;
		}
		/* **********************************************************************************/

		IEditorPart editor = getActiveEditor();
		setEnabled(editor != null && editor.isSaveAsAllowed());
	}
}