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1
19
20 package org.netbeans.modules.scripting.php.dbginterface;
21
22 import java.io.IOException  ;
23 import javax.swing.JEditorPane ;
24 import javax.swing.text.BadLocationException ;
25 import javax.swing.text.Element ;
26 import javax.swing.text.StyledDocument ;
27 import org.netbeans.api.debugger.DebuggerEngine;
28 import org.openide.ErrorManager;
29 import org.openide.cookies.EditorCookie;
30 import org.openide.loaders.DataObject;
31 import org.openide.text.Annotation;
32 import org.openide.text.DataEditorSupport;
33 import org.openide.text.Line;
34 import org.openide.text.NbDocument;
35 import org.openide.util.RequestProcessor;
36 import org.netbeans.api.debugger.DebuggerManager;
37 import org.netbeans.modules.scripting.php.dbginterface.api.VariableNode;
38
39
40 public class ToolTipAnnotation extends Annotation implements Runnable {
41
42 private Line.Part lp;
43 private EditorCookie ec;
44 private DbgDebuggerImpl debugger;
45
46 public String getShortDescription() {
47 DebuggerEngine currentEngine = DebuggerManager.getDebuggerManager().getCurrentEngine();
48
49 if (currentEngine != null) {
50 DbgDebuggerImpl debugger = (DbgDebuggerImpl)currentEngine.lookupFirst(null, DbgDebuggerImpl.class);
51
52 if (debugger != null) {
53 Line.Part lp = (Line.Part)getAttachedAnnotatable();
54
55 if (lp != null) {
56
57 Line line = lp.getLine();
58
59 if (line != null) {
60 DataObject dob = DataEditorSupport.findDataObject(line);
61
62 if (dob != null) {
63 EditorCookie ec = (EditorCookie)dob.getCookie(EditorCookie.class);
64
65 if (ec != null) {
66 this.lp = lp;
67 this.ec = ec;
68 this.debugger = debugger;
69 RequestProcessor.getDefault().post(this);
70 }
71 }
72 }
73 }
74 }
75 }
76
77 return null;
78 }
79
80 public void run() {
81 try {
82 StyledDocument doc = ec.openDocument();
83
84 JEditorPane ep = Utils.findJEditorPane(ec);
85
86 if (ep == null) {
87 return;
88 }
89
90 String expression = getIdentifier(doc, ep,
91 NbDocument.findLineOffset(doc, lp.getLine().getLineNumber()) + lp.getColumn());
92
93 System.err.println("mw ToolTipAnnotation.run() expression= " + expression);
94 if (expression == null) {
95 return;
96 }
97
98 String value = null;
99 VariableNode node = debugger.evaluateExpr(debugger.getVariablesModel().getCurrentFrame(),
100 expression);
101
102 if (node != null) {
103 value = node.getTooltipValue();
104 }
105
106 System.err.println("mw Evaluated: value = " + value + ", node = " + node);
107 if (value == null || value.equals(expression)) {
108 return;
109 }
110
111 String toolTipText = expression + " = " + value ;
112 firePropertyChange(PROP_SHORT_DESCRIPTION, null, toolTipText);
113 } catch(IOException ex) {
114 } catch(Exception ex) {
116 ErrorManager.getDefault().notify(ErrorManager.INFORMATIONAL, ex);
118 }
119 }
120
121 public String getAnnotationType() {
122 return null; }
124
125 private static String getIdentifier(StyledDocument doc, JEditorPane ep, int offset) {
126 String t = null;
127
128 if ((ep.getSelectionStart() <= offset) && (offset <= ep.getSelectionEnd())) {
129 t = ep.getSelectedText();
130 }
131
132 if (t != null) {
133 return t;
134 }
135
136 int line = NbDocument.findLineNumber(doc, offset);
137 int col = NbDocument.findLineColumn(doc, offset);
138
139 try {
140 Element lineElem = NbDocument.findLineRootElement(doc).getElement(line);
141
142 if (lineElem == null) {
143 return null;
144 }
145
146 int lineStartOffset = lineElem.getStartOffset();
147 int lineLen = lineElem.getEndOffset() - lineStartOffset;
148 t = doc.getText(lineStartOffset, lineLen);
149 lineLen = t.length();
150
151 int identStart = col;
152 while (identStart > 0) {
153 if (isIdentifierPrefixChar(t.charAt(identStart - 1))) {
154 identStart--;
155 }
156 else if (identStart > 3 && t.charAt(identStart - 1) == '>' &&
157 t.charAt(identStart - 2) == '-') {
158 identStart -= 2;
159 }
160 else {
161 break;
162 }
163 }
164
165 if (t.charAt(identStart) != '$') {
166 return null;
168 }
169
170 int identEnd = Math.max(col, 1);
171 while (identEnd < lineLen && isIdentifierTrailingChar(t.charAt(identEnd - 1))) {
172 identEnd++;
173 }
174
175 if (identStart > 0 && identEnd < lineLen &&
176 t.charAt(identStart - 1) == '"' && t.charAt(identEnd - 1) == '"') {
177 identStart--;
178 identEnd++;
179 }
180
181 if (identStart == identEnd) {
182 return null;
183 }
184
185 return t.substring(identStart, identEnd - 1);
186 }
187 catch (BadLocationException e) {
188 return null;
189 }
190 }
191
192 private static boolean isIdentifierPrefixChar(char c) {
193 return (c == '$') || (c == '_') || (c >= '0' && c <= '9') ||
194 (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') ||
195 (c >= 0x7f && c <= 0xff);
196 }
197
198 private static boolean isIdentifierTrailingChar(char c) {
199 return (c == '_') || (c >= '0' && c <= '9') ||
200 (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') ||
201 (c >= 0x7f && c <= 0xff);
202 }
203 } |
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