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1
56 package org.objectstyle.cayenne.modeler.dialog;
57
58 import java.awt.Component  ;
59
60 import javax.swing.JDialog ;
61 import javax.swing.JOptionPane ;
62
63
66 public class UnsavedChangesDialog {
67
68 private static final String SAVE_AND_CLOSE = "Save Changes";
69 private static final String CLOSE_WITHOUT_SAVE = "Ignore Changes";
70 private static final String CANCEL = "Cancel";
71
72 private static final String [] OPTIONS = new String [] {
73 SAVE_AND_CLOSE, CLOSE_WITHOUT_SAVE, CANCEL
74 };
75
76 protected Component parent;
77 protected String result = CANCEL;
78
79 public UnsavedChangesDialog(Component parent) {
80 this.parent = parent;
81 }
82
83 public void show() {
84 JOptionPane pane = new JOptionPane (
85 "You have unsaved changes. Do you want to save them?",
86 JOptionPane.QUESTION_MESSAGE);
87 pane.setOptions(OPTIONS);
88
89 JDialog dialog = pane.createDialog(parent, "Unsaved Changes");
90 dialog.setVisible(true);
91
92 Object selectedValue = pane.getValue();
93 if (SAVE_AND_CLOSE.equals(selectedValue)) {
96 result = SAVE_AND_CLOSE;
97 }
98 else if (CLOSE_WITHOUT_SAVE.equals(selectedValue)) {
99 result = CLOSE_WITHOUT_SAVE;
100 }
101 else {
102 result = CANCEL;
103 }
104 }
105
106 public boolean shouldSave() {
107 return SAVE_AND_CLOSE.equals(result);
108 }
109
110 public boolean shouldNotSave() {
111 return CLOSE_WITHOUT_SAVE.equals(result);
112 }
113
114 public boolean shouldCancel() {
115 return result == null || CANCEL.equals(result);
116 }
117 }
118
119 |
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