IElementStateListenerExtension


1   /*******************************************************************************
2    * Copyright (c) 2000, 2005 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.texteditor;
13  
14  /**
15   * Extension interface for {@link org.eclipse.ui.texteditor.IElementStateListener}.
16   * It adds
17   * <ul>
18   * <li> state validation notification
19   * <li>a notion of session, i.e. a notification about an upcoming element change and error handling.
20   * </ul>
21   * @since 2.0
22   */
23  public interface IElementStateListenerExtension {
24  
25      /**
26       * Notifies that the state validation of the given element has changed.
27       *
28       * @param element the element
29       * @param isStateValidated the flag indicating whether state validation is done
30       */
31      void elementStateValidationChanged(Object   element, boolean isStateValidated);
32  
33      /**
34       * Notifies that the given element is currently being changed. This method may
35       * be sent from a non-ui thread.
36       *
37       * @param element the element
38       */
39      void elementStateChanging(Object   element);
40  
41      /**
42       * Notifies that changing the given element has failed.
43       *
44       * @param element the element
45       */
46      void elementStateChangeFailed(Object   element);
47  }
48

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