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1
21
22 package org.armedbear.j;
23
24 import java.awt.event.FocusEvent  ;
25 import java.awt.event.FocusListener ;
26
27 public final class AliasDialog extends AbstractDialog implements FocusListener
28 {
29 private final Editor editor;
30 private final HistoryTextField keyTextField;
31 private final HistoryTextField valueTextField;
32
33 public AliasDialog(Editor editor)
34 {
35 this(editor, null);
36 }
37
38 public AliasDialog(Editor editor, String key)
39 {
40 super(editor.getFrame(), "Alias", true);
41 this.editor = editor;
42 keyTextField = new HistoryTextField(20);
43 valueTextField = new HistoryTextField(20);
44 Label label = new Label("Key:");
45 label.setDisplayedMnemonic('K');
46 addLabelAndTextField(label, keyTextField);
47 addVerticalStrut();
48 label = new Label("Value:");
49 label.setDisplayedMnemonic('V');
50 addLabelAndTextField(label, valueTextField);
51 addVerticalStrut();
52 addOKCancel();
53 pack();
54 keyTextField.addFocusListener(this);
55 if (key != null) {
56 keyTextField.setText(key);
57 String value = editor.getAlias(key);
58 if (value != null)
59 valueTextField.setText(value);
60 valueTextField.requestFocus();
61 } else
62 keyTextField.requestFocus();
63 }
64
65 protected void ok()
66 {
67 dispose();
68 String key = getKey();
69 if (Aliases.isSystemAlias(key))
70 MessageDialog.showMessageDialog(editor, "System aliases cannot be changed.", "Error");
71 else {
72 String value = getValue();
73 if (value.length() == 0)
74 editor.removeAlias(key);
75 else if (value.equals("here"))
76 editor.setAliasForBuffer(key, editor.getBuffer());
77 else
78 editor.setAlias(key, value);
79 }
80 }
81
82 private final String getKey()
83 {
84 final String key = keyTextField.getText();
85 return key != null ? key.trim() : "";
86 }
87
88 private final String getValue()
89 {
90 final String value = valueTextField.getText();
91 return value != null ? value.trim() : "";
92 }
93
94 public void focusGained(FocusEvent e)
95 {
96 }
97
98 public void focusLost(FocusEvent e)
99 {
100 String value = editor.getAlias(getKey());
101 if (value != null)
102 valueTextField.setText(value);
103 }
104
105 public static void alias()
106 {
107 final Editor editor = Editor.currentEditor();
108 AliasDialog d = new AliasDialog(editor);
109 editor.centerDialog(d);
110 d.show();
111 }
112
113 public static void alias(String args)
114 {
115 final Editor editor = Editor.currentEditor();
116 args = args.trim();
117 final FastStringBuffer sb = new FastStringBuffer();
118 int i = 0;
119 for (; i < args.length(); i++) {
120 char c = args.charAt(i);
121 if (Character.isWhitespace(c))
122 break;
123 else if (c == '=')
124 break;
125 else
126 sb.append(c);
127 }
128 if (sb.length() == 0)
129 return;
130 final String key = sb.toString();
131 boolean seenEquals = false;
132 for (; i < args.length(); i++) {
133 char c = args.charAt(i);
134 if (Character.isWhitespace(c))
135 continue;
136 if (c == '=' && !seenEquals)
137 seenEquals = true;
138 else
139 break;
140 }
141 sb.setLength(0);
142 for (; i < args.length(); i++)
143 sb.append(args.charAt(i));
144 String value = sb.toString();
145 if (value.length() == 0) {
146 if (seenEquals) {
147 if (Aliases.isSystemAlias(key))
149 MessageDialog.showMessageDialog(editor, "System aliases cannot be changed.", "Error");
150 else
151 editor.removeAlias(key);
152 } else {
153 AliasDialog d = new AliasDialog(editor, key);
154 editor.centerDialog(d);
155 d.show();
156 }
157 } else {
158 if (Aliases.isSystemAlias(key))
159 MessageDialog.showMessageDialog(editor, "System aliases cannot be changed.", "Error");
160 else if (value.equals("here"))
161 editor.setAliasForBuffer(key, editor.getBuffer());
162 else
163 editor.setAlias(key, value);
164 }
165 }
166 }
167 |
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