/*******************************************************************************
 * Copyright (c) 2006, 2008 Wind River Systems, Inc. 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:
 *     Anton Leherbauer (Wind River Systems) - initial API and implementation
 *******************************************************************************/

package org.eclipse.cdt.internal.ui.navigator;

import org.eclipse.jface.action.IMenuManager;
import org.eclipse.ui.IActionBars;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.actions.ActionContext;
import org.eclipse.ui.navigator.CommonActionProvider;
import org.eclipse.ui.navigator.ICommonActionConstants;
import org.eclipse.ui.navigator.ICommonActionExtensionSite;
import org.eclipse.ui.navigator.ICommonViewerWorkbenchSite;

/**
 * A Common Navigator action provider providing the contributions
 * from the open editor action group.
 * 
 * @see CNavigatorOpenEditorActionGroup
 */
public class CNavigatorOpenActionProvider extends CommonActionProvider {

	private CNavigatorOpenEditorActionGroup fOpenGroup;

	/*
	 * @see org.eclipse.ui.navigator.CommonActionProvider#init(org.eclipse.ui.navigator.ICommonActionExtensionSite)
	 */
	@Override
	public void init(ICommonActionExtensionSite site) {
		ICommonViewerWorkbenchSite workbenchSite = null;
		if (site.getViewSite() instanceof ICommonViewerWorkbenchSite) {
			workbenchSite = (ICommonViewerWorkbenchSite) site.getViewSite();
		}
		if (workbenchSite != null) {
			if (workbenchSite.getPart() != null && workbenchSite.getPart() instanceof IViewPart) {
				IViewPart viewPart = (IViewPart) workbenchSite.getPart();

				fOpenGroup = new CNavigatorOpenEditorActionGroup(viewPart);
			}
		}
	}

	/*
	 * @see org.eclipse.ui.actions.ActionGroup#dispose()
	 */
	@Override
	public void dispose() {
		if (fOpenGroup != null) {
			fOpenGroup.dispose();
			fOpenGroup = null;
		}
		super.dispose();
	}

	/*
	 * @see org.eclipse.ui.actions.ActionGroup#fillActionBars(org.eclipse.ui.IActionBars)
	 */
	@Override
	public void fillActionBars(IActionBars actionBars) {
		if (fOpenGroup != null) {
			fOpenGroup.updateActionBars();
			if (fOpenGroup.getOpenAction().isEnabled()) {
				actionBars.setGlobalActionHandler(ICommonActionConstants.OPEN, fOpenGroup.getOpenAction());
			}
		}

	}

	/*
	 * @see org.eclipse.ui.actions.ActionGroup#fillContextMenu(org.eclipse.jface.action.IMenuManager)
	 */
	@Override
	public void fillContextMenu(IMenuManager menu) {
		if (fOpenGroup != null) {
			fOpenGroup.fillContextMenu(menu);
		}
	}

	/*
	 * @see org.eclipse.ui.actions.ActionGroup#setContext(org.eclipse.ui.actions.ActionContext)
	 */
	@Override
	public void setContext(ActionContext context) {
		super.setContext(context);
		if (fOpenGroup != null) {
			fOpenGroup.setContext(context);
		}
	}

}