PromptingDialog


1   /*******************************************************************************
2    * Copyright (c) 2000, 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  package org.eclipse.team.internal.ui.dialogs;
12  
13  import java.util.ArrayList  ;
14  import java.util.List  ;
15  
16  import org.eclipse.core.resources.IResource;
17  import org.eclipse.jface.window.IShellProvider;
18  import org.eclipse.swt.widgets.Shell;
19  
20  /**
21   * A confirmation dialog helper that will either show a 'yes/no/yes to all/cancel'
22   * dialog to confirm an action performed on several resources or if only one
23   * resource is specified 'ok/cancel' will be shown.
24   */
25  public class PromptingDialog extends MultipleYesNoPrompter {
26      private IPromptCondition condition;
27      private IResource[] resources;
28      /**
29       * Prompt for the given resources using the specific condition. The prompt dialog will
30       * have the title specified.
31       * @param shell 
32       * @param resources 
33       * @param condition 
34       * @param title 
35       */
36      public PromptingDialog(Shell shell, IResource[] resources, IPromptCondition condition, String   title) {
37          this(shell, resources, condition, title, false /* all or nothing */);        
38      }
39      
40      public PromptingDialog(final Shell shell, IResource[] resources, IPromptCondition condition, String   title, boolean allOrNothing) {
41          super(new IShellProvider() {    
42              public Shell getShell() {
43                  return shell;
44              }   
45          }, title, resources.length > 1, allOrNothing);
46          this.resources = resources;
47          this.condition = condition;
48      }
49      /**
50       * Call to calculate and show prompt. If no resources satisfy the prompt
51       * condition a dialog won't be shown. The resources for which the user
52       * confirmed the action are returned.
53       * @return the resources
54       * 
55       * @throws InterruptedException
56       *             if the user choose to cancel on the prompt dialog
57       */
58      public IResource[] promptForMultiple() throws InterruptedException   {
59          List   targetResources = new ArrayList  ();
60          for (int i = 0; i < resources.length; i++) {
61              IResource resource = resources[i];
62              if (!condition.needsPrompt(resource) || shouldInclude(condition.promptMessage(resource))) {
63                  targetResources.add(resource);
64              }
65          }
66          return (IResource[]) targetResources.toArray(new IResource[targetResources.size()]);
67      }
68  }
69
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