OpenDialogAction


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  package org.eclipse.jdt.internal.debug.ui.actions;
12  
13  
14  import org.eclipse.jdt.internal.debug.ui.JDIDebugUIPlugin;
15  import org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer;
16  import org.eclipse.jface.dialogs.IDialogSettings;
17  
18  /**
19   * Abstract action that opens a dialog. Contains a prefix for dialog preference
20   * settings.
21   */
22  public abstract class OpenDialogAction extends RuntimeClasspathAction {
23      
24      /**
25       * Attribute name for the last path used to open a file/directory chooser
26       * dialog.
27       */
28      protected static final String   LAST_PATH_SETTING = "LAST_PATH_SETTING"; //$NON-NLS-1$
29      
30      /**
31       * Dialog settings prefix/qualifier
32       */
33      private String   fPrefix = null;
34  
35      /**
36       * Constructs an action that opens a dialog.
37       */
38      public OpenDialogAction(String   label, IClasspathViewer viewer, String   dialogSettingsPrefix) {
39          super(label, viewer);
40          fPrefix = dialogSettingsPrefix;
41      }
42      
43      /**
44       * Returns the prefix of the identifier used to store dialog settings for
45       * this action.
46       */
47      protected String   getDialogSettingsPrefix() {
48          return fPrefix;
49      }
50      
51      /**
52       * Returns the value of the dialog setting, associated with the given
53       * settingName, resolved by the dialog setting prefix associated with this
54       * action.
55       * 
56       * @param settingName unqualified setting name
57       * @return value or <code>null</code> if none
58       */
59      protected String   getDialogSetting(String   settingName) {
60          return getDialogSettings().get(getDialogSettingsPrefix() + "." + settingName); //$NON-NLS-1$
61      }
62      
63      /**
64       * Sets the value of the dialog setting, associated with the given
65       * settingName, resolved by the dialog setting prefix associated with this
66       * action.
67       * 
68       * @param settingName unqualified setting name
69       * @return value or <code>null</code> if none
70       */
71      protected void setDialogSetting(String   settingName, String   value) {
72          getDialogSettings().put(getDialogSettingsPrefix() + "." + settingName, value); //$NON-NLS-1$
73      }
74  
75      /**
76       * Returns this plug-in's dialog settings.
77       * 
78       * @return IDialogSettings
79       */
80      protected IDialogSettings getDialogSettings() {
81          IDialogSettings settings = JDIDebugUIPlugin.getDefault().getDialogSettings();
82          return settings;
83      }
84      
85      protected int getActionType() {
86          return ADD;
87      }
88  }
89
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