WorkbenchDialogBlockedHandler


1   /*******************************************************************************
2    * Copyright (c) 2004, 2006 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  package org.eclipse.ui.internal.dialogs;
12  
13  import org.eclipse.core.runtime.IProgressMonitor;
14  import org.eclipse.core.runtime.IStatus;
15  import org.eclipse.jface.dialogs.IDialogBlockedHandler;
16  import org.eclipse.swt.widgets.Shell;
17  import org.eclipse.ui.internal.progress.BlockedJobsDialog;
18  
19  /**
20   * The WorkbenchWizardBlockedHandler is the class that implements the blocked
21   * handler for the workbench.
22   */
23  public class WorkbenchDialogBlockedHandler implements IDialogBlockedHandler {
24      IProgressMonitor outerMonitor;
25  
26      int nestingDepth = 0;
27  
28      /**
29       * Create a new instance of the receiver.
30       */
31      public WorkbenchDialogBlockedHandler() {
32          //No default behavior
33      }
34  
35      /*
36       * (non-Javadoc)
37       * 
38       * @see org.eclipse.jface.dialogs.IDialogBlockedHandler#clearBlocked()
39       */
40      public void clearBlocked() {
41          if (nestingDepth == 0) {
42              return;
43          }
44  
45          nestingDepth--;
46  
47          if (nestingDepth <= 0) {
48              BlockedJobsDialog.clear(outerMonitor);
49              outerMonitor = null;
50              nestingDepth = 0;
51          }
52  
53      }
54  
55      /*
56       * (non-Javadoc)
57       * 
58       * @see org.eclipse.jface.dialogs.IDialogBlockedHandler#showBlocked(org.eclipse.swt.widgets.Shell,
59       *      org.eclipse.core.runtime.IProgressMonitor,
60       *      org.eclipse.core.runtime.IStatus, java.lang.String)
61       */
62      public void showBlocked(Shell parentShell,
63              IProgressMonitor blockingMonitor, IStatus blockingStatus,
64              String   blockedName) {
65  
66          nestingDepth++;
67          if (outerMonitor == null) {
68              outerMonitor = blockingMonitor;
69              //Try to get a name as best as possible
70              if (blockedName == null && parentShell != null) {
71                  blockedName = parentShell.getText();
72              }
73              BlockedJobsDialog.createBlockedDialog(parentShell, blockingMonitor,
74                      blockingStatus, blockedName);
75          }
76  
77      }
78  
79      /*
80       * (non-Javadoc)
81       * 
82       * @see org.eclipse.jface.dialogs.IDialogBlockedHandler#showBlocked(org.eclipse.core.runtime.IProgressMonitor,
83       *      org.eclipse.core.runtime.IStatus, java.lang.String)
84       */
85      public void showBlocked(IProgressMonitor blocking, IStatus blockingStatus,
86              String   blockedName) {
87          showBlocked(null, blocking, blockingStatus, blockedName);
88      }
89  }
90
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