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19 package org.netbeans.modules.retouche.editor.hyperlink;
20
21 import java.awt.Toolkit  ;
22 import java.io.IOException ;
23 import java.net.URL ;
24 import java.util.Arrays ;
25 import java.util.HashSet ;
26 import java.util.Set ;
27 import javax.swing.text.Document ;
28 import org.netbeans.api.gsf.DeclarationFinder;
29 import org.netbeans.api.gsf.DeclarationFinder.DeclarationLocation;
30 import org.netbeans.api.gsf.OffsetRange;
31 import org.netbeans.api.gsf.GsfTokenId;
32 import org.netbeans.api.gsf.CancellableTask;
33 import org.netbeans.api.gsf.ElementHandle;
34 import org.netbeans.api.lexer.Token;
35 import org.netbeans.api.lexer.TokenHierarchy;
36 import org.netbeans.api.lexer.TokenId;
37 import org.netbeans.api.lexer.TokenSequence;
38 import org.netbeans.api.retouche.source.CompilationController;
39 import org.netbeans.api.retouche.source.Phase;
40 import org.netbeans.api.retouche.source.Source;
41 import org.netbeans.api.retouche.source.UiUtils;
42 import org.netbeans.modules.gsf.Language;
43 import org.netbeans.modules.gsf.LanguageRegistry;
44 import org.openide.awt.HtmlBrowser;
45 import org.openide.filesystems.FileObject;
46 import org.openide.loaders.DataObject;
47
48
49
52 public class GoToSupport {
53 private static final Set <GsfTokenId> USABLE_TOKEN_IDS =
54 new HashSet (Arrays.asList(GsfTokenId.IDENTIFIER ));
55
56
57 private GoToSupport() {
58 }
59
60 public static String performGoTo(final Document doc, final int offset) {
61 try {
62 final FileObject fo = getFileObject(doc);
63
64 if (fo == null) {
65 return null;
66 }
67
68 Source js = Source.forFileObject(fo);
69 final String [] result = new String [1];
70
71 js.runUserActionTask(new CancellableTask<CompilationController>() {
72 public void cancel() {
73 }
74
75 public void run(CompilationController controller)
76 throws Exception {
77 if (controller.toPhase(Phase.RESOLVED).compareTo(Phase.RESOLVED) < 0) {
78 return;
79 }
80
81 Language language = controller.getLanguage();
82
83 if (language != null) {
84 DeclarationFinder finder = language.getDeclarationFinder();
85
86 if (finder != null) {
87 Token[] tokens = new Token[1];
88 getIdentifierSpan(doc, offset);
89
90 DeclarationLocation location =
91 finder.findDeclaration(controller, offset);
92
93 if (location != DeclarationLocation.NONE) {
94 URL url = location.getUrl();
95 if (url != null) {
96 HtmlBrowser.URLDisplayer.getDefault().showURL(url);
97 } else {
98 UiUtils.open(location.getFileObject(), location.getOffset());
99
100 String desc = "Description not yet implemented";
101 result[0] = "<html><body>" + desc;
102 }
103
104 return;
105 }
106 }
107 }
108
109 Toolkit.getDefaultToolkit().beep();
110 result[0] = null;
111
112 return;
113 }
114 }, true);
115
116 return result[0];
117 } catch (IOException ioe) {
118 throw new IllegalStateException (ioe);
119 }
120 }
121
122 private static FileObject getFileObject(Document doc) {
123 DataObject od = (DataObject)doc.getProperty(Document.StreamDescriptionProperty);
124
125 return (od != null) ? od.getPrimaryFile() : null;
126 }
127
128 public int[] getHyperlinkSpan(Document doc, int offset) {
129 return GoToSupport.getIdentifierSpan(doc, offset);
130 }
131
132 public static int[] getIdentifierSpan(Document doc, int offset) {
133 FileObject fo = getFileObject(doc);
134
135 if (fo == null) {
136 return null;
138 }
139
140 Language language = LanguageRegistry.getInstance().getLanguageByMimeType(fo.getMIMEType());
141
142 if (language == null) {
143 return null;
144 }
145
146 DeclarationFinder finder = language.getDeclarationFinder();
147
148 if (finder == null) {
149 return null;
150 }
151
152 OffsetRange range = finder.getReferenceSpan(doc, offset);
153 if (range != OffsetRange.NONE) {
154 return new int[] { range.getStart(), range.getEnd() };
155 }
156
157 return null;
158 }
159 }
160 |
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