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1
19
20 package org.netbeans.modules.javadoc.search;
21
22 import javax.swing.JPopupMenu  ;
23
24 import java.awt.event.ActionEvent ;
25 import java.awt.event.ActionListener ;
26 import java.net.URL ;
27 import java.util.*;
28 import java.lang.ref.Reference ;
29 import java.lang.ref.WeakReference ;
30 import javax.swing.JComponent ;
31 import javax.swing.JMenu ;
32 import javax.swing.JMenuItem ;
33 import javax.swing.event.ChangeEvent ;
34 import javax.swing.event.ChangeListener ;
35 import org.openide.ErrorManager;
36 import org.openide.awt.HtmlBrowser;
37 import org.openide.awt.Mnemonics;
38 import org.openide.filesystems.FileObject;
39 import org.openide.filesystems.FileStateInvalidException;
40 import org.openide.filesystems.FileSystem;
41 import org.openide.util.HelpCtx;
42 import org.openide.util.NbBundle;
43 import org.openide.awt.DynamicMenuContent;
44 import org.openide.util.actions.SystemAction;
45 import org.openide.util.actions.Presenter;
46
47
53 public final class IndexOverviewAction extends SystemAction implements Presenter.Menu {
54
55 private static final ErrorManager err = ErrorManager.getDefault().getInstance("org.netbeans.modules.javadoc.search.IndexOverviewAction.IndexMenu");
57 public IndexOverviewAction() {
58 putValue("noIconInMenu", Boolean.TRUE); }
60
61 public void actionPerformed(ActionEvent ev) {
62 }
64
65 public String getName() {
66 return NbBundle.getMessage(IndexOverviewAction.class, "CTL_INDICES_MenuItem");
67 }
68
69 protected String iconResource() {
70 return null; }
72
73 public HelpCtx getHelpCtx() {
74 return new HelpCtx("javadoc.search"); }
76
77 public JMenuItem getMenuPresenter() {
78 return new IndexMenu();
79 }
80
81
86 private final class IndexMenu extends JMenu implements HelpCtx.Provider, DynamicMenuContent {
87
88 private int itemHash = 0;
89
90 public IndexMenu() {
91 Mnemonics.setLocalizedText(this, IndexOverviewAction.this.getName());
92 getModel().addChangeListener(new ChangeListener () {
95 public void stateChanged(ChangeEvent e) {
96 if (getModel().isSelected()) {
97 getPopupMenu2();
98 }
99 }
100 });
101 }
102
103 public HelpCtx getHelpCtx() {
104 return IndexOverviewAction.this.getHelpCtx();
105 }
106
107 public JComponent [] getMenuPresenters() {
108 return new JComponent [] {this};
109 }
110
111 public JComponent [] synchMenuPresenters(JComponent [] items) {
112 return items;
113 }
114
115
123 public void getPopupMenu2() {
124 List[] data = IndexBuilder.getDefault().getIndices();
125 int newHash = computeDataHash(data);
126 if (newHash != itemHash) {
127 if (err.isLoggable(ErrorManager.INFORMATIONAL)) {
128 err.log("recreating popup menu (" + itemHash + " -> " + newHash + ")");
129 }
130 itemHash = newHash;
131 removeAll();
133 List names = data[0]; List indices = data[1]; int size = names.size();
136 if (size != indices.size()) throw new IllegalStateException ();
137 if (size > 0) {
138 for (int i = 0; i < size; i++) {
139 try {
140 add(new IndexMenuItem((String )names.get(i), (FileObject)indices.get(i)));
141 } catch (FileStateInvalidException e) {
142 err.notify(ErrorManager.INFORMATIONAL, e);
143 }
144 }
145 } else {
146 JMenuItem dummy = new JMenuItem (NbBundle.getMessage(IndexOverviewAction.class, "CTL_no_indices_found"));
147 dummy.setEnabled(false);
148 add(dummy);
149 }
150 }
151 }
152
153 private int computeDataHash(List[] data) {
154 int x = data[0].hashCode();
155 Iterator it = data[1].iterator();
156 while (it.hasNext()) {
157 FileObject fo = (FileObject)it.next();
158 try {
161 x += fo.getURL().hashCode();
162 } catch (FileStateInvalidException e) {
163 err.notify(ErrorManager.INFORMATIONAL, e);
164 }
165 }
166 return x;
167 }
168
169 }
170
171
174 private final class IndexMenuItem extends JMenuItem implements ActionListener , HelpCtx.Provider {
175
176
177 private URL u;
178
179 private final Reference fsRef;
180
181 private String foPath;
182
183 public IndexMenuItem(String display, FileObject index) throws FileStateInvalidException {
184 super(display);
185 fsRef = new WeakReference (index.getFileSystem());
186 foPath = index.getPath();
187 addActionListener(this);
188 }
189
190 public void actionPerformed(ActionEvent ev) {
191 URL loc = getURL();
192 HtmlBrowser.URLDisplayer.getDefault().showURL(loc);
193 }
194
195 private URL getURL() {
196 if (u == null) {
197 FileSystem fs = (FileSystem) fsRef.get();
198 assert fs != null;
199 FileObject index = fs.findResource(foPath);
200 assert index != null: foPath;
201 u = JavadocURLMapper.findURL(index);
202 }
203 return u;
204 }
205
206 public HelpCtx getHelpCtx() {
207 return IndexOverviewAction.this.getHelpCtx();
208 }
209
210 }
211
212 }
213 |
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