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1
19
20 package org.netbeans.modules.debugger.jpda.projects;
21
22 import java.io.IOException  ;
23 import java.lang.reflect.InvocationTargetException ;
24 import java.util.List ;
25 import javax.swing.JEditorPane ;
26 import javax.swing.SwingUtilities ;
27 import javax.swing.text.BadLocationException ;
28 import javax.swing.text.Element ;
29 import javax.swing.text.StyledDocument ;
30 import org.openide.ErrorManager;
31
32 import org.openide.cookies.EditorCookie;
33 import org.openide.loaders.DataObject;
34 import org.openide.text.Annotation;
35 import org.openide.text.DataEditorSupport;
36 import org.openide.text.Line;
37 import org.openide.text.NbDocument;
38 import org.openide.text.Line.Part;
39 import org.openide.util.RequestProcessor;
40 import org.netbeans.api.debugger.DebuggerEngine;
41 import org.netbeans.api.debugger.DebuggerManager;
42 import org.netbeans.api.debugger.jpda.InvalidExpressionException;
43 import org.netbeans.api.debugger.Watch;
44 import org.netbeans.api.debugger.jpda.JPDADebugger;
45 import org.netbeans.api.debugger.jpda.JPDAThread;
46 import org.netbeans.api.debugger.jpda.JPDAWatch;
47 import org.netbeans.api.debugger.jpda.ObjectVariable;
48 import org.netbeans.api.debugger.jpda.Variable;
49 import org.netbeans.spi.debugger.jpda.EditorContext.Operation;
50
51 import org.openide.nodes.Node;
52 import org.openide.windows.TopComponent;
53
54
55 public class ToolTipAnnotation extends Annotation implements Runnable {
56
57 private Part lp;
58 private EditorCookie ec;
59
60 public String getShortDescription () {
61 DebuggerEngine currentEngine = DebuggerManager.getDebuggerManager ().
62 getCurrentEngine ();
63 if (currentEngine == null) return null;
64 JPDADebugger d = (JPDADebugger) currentEngine.lookupFirst
65 (null, JPDADebugger.class);
66 if (d == null) return null;
67
68 Part lp = (Part) getAttachedAnnotatable();
69 if (lp == null) return null;
70 Line line = lp.getLine ();
71 DataObject dob = DataEditorSupport.findDataObject (line);
72 if (dob == null) return null;
73 EditorCookie ec = (EditorCookie) dob.getCookie (EditorCookie.class);
74 if (ec == null)
75 return null;
76
78 this.lp = lp;
79 this.ec = ec;
80 RequestProcessor.getDefault ().post (this);
81 return null;
82 }
83
84 public void run () {
85 if (lp == null || ec == null) return ;
86 StyledDocument doc;
87 try {
88 doc = ec.openDocument();
89 } catch (IOException ex) {
90 return ;
91 }
92 JEditorPane ep = getCurrentEditor ();
93 if (ep == null) return ;
94 int offset;
95 String expression = getIdentifier (
96 doc,
97 ep,
98 offset = NbDocument.findLineOffset (
99 doc,
100 lp.getLine ().getLineNumber ()
101 ) + lp.getColumn ()
102 );
103 if (expression == null) return ;
104 DebuggerEngine currentEngine = DebuggerManager.getDebuggerManager ().
105 getCurrentEngine ();
106 if (currentEngine == null) return;
107 JPDADebugger d = (JPDADebugger) currentEngine.lookupFirst
108 (null, JPDADebugger.class);
109 if (d == null) return;
110 JPDAThread t = d.getCurrentThread();
111 if (t == null || !t.isSuspended()) return ;
112 String toolTipText = null;
113 try {
114 Variable v = null;
115 List <Operation> operations = t.getLastOperations();
116 if (operations != null) {
117 for (Operation operation: operations) {
118 if (!expression.endsWith(operation.getMethodName())) {
119 continue;
120 }
121 if (operation.getMethodStartPosition().getOffset() <= offset &&
122 offset <= operation.getMethodEndPosition().getOffset()) {
123 v = operation.getReturnValue();
124 }
125 }
126 }
127 if (v == null) {
128 v = d.evaluate (expression);
129 }
130 String type = v.getType ();
131 String value = v.getValue ();
132 if (v instanceof ObjectVariable)
133 try {
134 toolTipText = expression + " = " +
135 (type.length () == 0 ?
136 "" :
137 "(" + type + ") ") +
138 ((ObjectVariable) v).getToStringValue ();
139 } catch (InvalidExpressionException ex) {
140 toolTipText = expression + " = " +
141 (type.length () == 0 ?
142 "" :
143 "(" + type + ") ") +
144 value;
145 }
146 else
147 toolTipText = expression + " = " +
148 (type.length () == 0 ?
149 "" :
150 "(" + type + ") ") +
151 value;
152 } catch (InvalidExpressionException e) {
153 toolTipText = expression + " = >" + e.getMessage () + "<";
154 }
155 firePropertyChange (PROP_SHORT_DESCRIPTION, null, toolTipText);
156 }
157
158 public String getAnnotationType () {
159 return null; }
161
162 private static String getIdentifier (
163 StyledDocument doc,
164 JEditorPane ep,
165 int offset
166 ) {
167 String t = null;
168 if ( (ep.getSelectionStart () <= offset) &&
169 (offset <= ep.getSelectionEnd ())
170 ) t = ep.getSelectedText ();
171 if (t != null) return t;
172
173 int line = NbDocument.findLineNumber (
174 doc,
175 offset
176 );
177 int col = NbDocument.findLineColumn (
178 doc,
179 offset
180 );
181 try {
182 Element lineElem =
183 NbDocument.findLineRootElement (doc).
184 getElement (line);
185
186 if (lineElem == null) return null;
187 int lineStartOffset = lineElem.getStartOffset ();
188 int lineLen = lineElem.getEndOffset() - lineStartOffset;
189 t = doc.getText (lineStartOffset, lineLen);
190 int identStart = col;
191 while (identStart > 0 &&
192 (Character.isJavaIdentifierPart (
193 t.charAt (identStart - 1)
194 ) ||
195 (t.charAt (identStart - 1) == '.'))) {
196 identStart--;
197 }
198 int identEnd = col;
199 while (identEnd < lineLen &&
200 Character.isJavaIdentifierPart(t.charAt(identEnd))
201 ) {
202 identEnd++;
203 }
204
205 if (identStart == identEnd) return null;
206 return t.substring (identStart, identEnd);
207 } catch (BadLocationException e) {
208 return null;
209 }
210 }
211
212
217 private static JEditorPane getCurrentEditor_() {
218 EditorCookie e = getCurrentEditorCookie ();
219 if (e == null) return null;
220 JEditorPane [] op = e.getOpenedPanes ();
221 if ((op == null) || (op.length < 1)) return null;
222 return op [0];
223 }
224
225 private static JEditorPane getCurrentEditor () {
226 if (SwingUtilities.isEventDispatchThread()) {
227 return getCurrentEditor_();
228 } else {
229 final JEditorPane [] ce = new JEditorPane [1];
230 try {
231 SwingUtilities.invokeAndWait(new Runnable () {
232 public void run() {
233 ce[0] = getCurrentEditor_();
234 }
235 });
236 } catch (InvocationTargetException ex) {
237 ErrorManager.getDefault().notify(ex.getTargetException());
238 } catch (InterruptedException ex) {
239 ErrorManager.getDefault().notify(ex);
240 }
241 return ce[0];
242 }
243 }
244
245
250 private static EditorCookie getCurrentEditorCookie () {
251 Node[] nodes = TopComponent.getRegistry ().getActivatedNodes ();
252 if ( (nodes == null) ||
253 (nodes.length != 1) ) return null;
254 Node n = nodes [0];
255 return (EditorCookie) n.getCookie (
256 EditorCookie.class
257 );
258 }
259 }
260
261 |
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