bundles/org.eclipse.ui.views/src/org/eclipse/ui/views/navigator/WorkspaceActionGroup.java

package org.eclipse.ui.views.navigator;

/**********************************************************************
Copyright (c) 2000, 2001, 2002, International Business Machines Corp and others.
All rights reserved.   This program and the accompanying materials
are made available under the terms of the Common Public License v0.5
which accompanies this distribution, and is available at
http://www.eclipse.org/legal/cpl-v05.html
 
Contributors:
**********************************************************************/

import org.eclipse.core.resources.*;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.widgets.Shell;

import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.Separator;
import org.eclipse.jface.viewers.IStructuredSelection;

import org.eclipse.ui.IActionBars;
import org.eclipse.ui.IWorkbenchActionConstants;
import org.eclipse.ui.actions.*;

/**
 * This is the action group for workspace actions such as Build, Refresh Local,
 * and Open/Close Project.
 */
public class WorkspaceActionGroup extends ResourceNavigatorActionGroup {

	private BuildAction buildAction;
	private BuildAction rebuildAction;
	private OpenResourceAction openProjectAction;
	private CloseResourceAction closeProjectAction;
	private RefreshAction refreshAction;

	public WorkspaceActionGroup(IResourceNavigator navigator) {
		super(navigator);
	}

	protected void makeActions() {
		Shell shell = navigator.getSite().getShell();
		IWorkspace workspace = ResourcesPlugin.getWorkspace();
		openProjectAction = new OpenResourceAction(shell);
		workspace.addResourceChangeListener(openProjectAction, IResourceChangeEvent.POST_CHANGE);
		closeProjectAction = new CloseResourceAction(shell);
		workspace.addResourceChangeListener(closeProjectAction, IResourceChangeEvent.POST_CHANGE);
		refreshAction = new RefreshAction(shell);
		buildAction =
			new BuildAction(shell, IncrementalProjectBuilder.INCREMENTAL_BUILD);
		rebuildAction = new BuildAction(shell, IncrementalProjectBuilder.FULL_BUILD);
	}
	
	public void fillContextMenu(IMenuManager menu) {
		IStructuredSelection selection =
			(IStructuredSelection) getContext().getSelection();
		
		boolean onlyProjectsSelected =
			!selection.isEmpty()
				&& ResourceSelectionUtil.allResourcesAreOfType(selection, IResource.PROJECT);

		if (!selection.isEmpty()) {
			// Allow manual incremental build only if auto build is off.
			if (!ResourcesPlugin.getWorkspace().isAutoBuilding()) {
				buildAction.selectionChanged(selection);
				menu.add(buildAction);
			}
			rebuildAction.selectionChanged(selection);
			menu.add(rebuildAction);
		}
		
		if (onlyProjectsSelected) {
			openProjectAction.selectionChanged(selection);
			menu.add(openProjectAction);
			closeProjectAction.selectionChanged(selection);
			menu.add(closeProjectAction);
		}
		
		menu.add(new Separator());
		
		refreshAction.selectionChanged(selection);
		menu.add(refreshAction);
	}
	
	public void fillActionBars(IActionBars actionBars) {
		actionBars.setGlobalActionHandler(
			IWorkbenchActionConstants.REFRESH,
			refreshAction);
		actionBars.setGlobalActionHandler(
			IWorkbenchActionConstants.BUILD_PROJECT,
			buildAction);
		actionBars.setGlobalActionHandler(
			IWorkbenchActionConstants.REBUILD_PROJECT,
			rebuildAction);
		actionBars.setGlobalActionHandler(
			IWorkbenchActionConstants.OPEN_PROJECT,
			openProjectAction);
		actionBars.setGlobalActionHandler(
			IWorkbenchActionConstants.CLOSE_PROJECT,
			closeProjectAction);
	}
	
	public void updateActionBars() {
		IStructuredSelection selection =
			(IStructuredSelection) getContext().getSelection();
		refreshAction.selectionChanged(selection);
		buildAction.selectionChanged(selection);
		rebuildAction.selectionChanged(selection);
		openProjectAction.selectionChanged(selection);
		closeProjectAction.selectionChanged(selection);
	}
	
	/**
 	 * Handles a key pressed event by invoking the appropriate action.
 	 */
	public void handleKeyPressed(KeyEvent event) {
		if (event.keyCode == SWT.F5 && event.stateMask == 0) {
			refreshAction.refreshAll();
		}
	}
	
	public void dispose() {
		IWorkspace workspace = ResourcesPlugin.getWorkspace();
		workspace.removeResourceChangeListener(openProjectAction);
		workspace.removeResourceChangeListener(closeProjectAction);
		super.dispose();
	}
}