InternalMenuService


1   /*******************************************************************************
2    * Copyright (c) 2007 IBM Corporation and others.
3    * All rights reserved. This program and the accompanying materials
4    * are made available under the terms of the Eclipse Public License v1.0
5    * which accompanies this distribution, and is available at
6    * http://www.eclipse.org/legal/epl-v10.html
7    *
8    * Contributors:
9    *     IBM Corporation - initial API and implementation
10   ******************************************************************************/
11  
12  package org.eclipse.ui.internal.menus;
13  
14  import java.util.List  ;
15  
16  import org.eclipse.core.expressions.Expression;
17  import org.eclipse.jface.action.IContributionItem;
18  import org.eclipse.ui.menus.IMenuService;
19  
20  /**
21   * Internal baseclass for Workbench and Window menu service implementations.
22   * Methods in this class might some day make sense to live in IMenuService.
23   * 
24   * @since 3.3
25   * 
26   */
27  public abstract class InternalMenuService implements IMenuService {
28  
29      /**
30       * Ties an expression to {@link IContributionItem#setVisible(boolean)}.
31       * 
32       * @param item
33       *            the item
34       * @param visibleWhen
35       *            the expression
36       * @param restriction
37       *            the restriction expression
38       * @param identifierId
39       *            the activity identifier id
40       */
41      public abstract void registerVisibleWhen(final IContributionItem item,
42              final Expression visibleWhen, final Expression restriction, String   identifierID);
43  
44      /**
45       * Removes any expressions bound to
46       * {@link IContributionItem#setVisible(boolean)} of the given item
47       * 
48       * @param item
49       *            the item to unbind
50       */
51      public abstract void unregisterVisibleWhen(IContributionItem item);
52  
53      /**
54       * Return a list of {@link MenuAdditionCacheEntry} objects that are
55       * contributed at the given uri.
56       * 
57       * @param uri
58       *            the uri to search on
59       * @return the list of items
60       */
61      public abstract List   getAdditionsForURI(MenuLocationURI uri);
62  
63  }
64
A to Z: JavaDoc & Examples Daily Java News & Articles Open Source Projects Open Source Codes Free Computer Books Remove Frame
Popular Tags