Source Code Cross Referenced for MarkOccurencesHighlighter.java in  » IDE-Netbeans » gsf » org » netbeans » modules » gsfret » editor » semantic » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE Netbeans » gsf » org.netbeans.modules.gsfret.editor.semantic 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003:         *
004:         * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005:         *
006:         * The contents of this file are subject to the terms of either the GNU
007:         * General Public License Version 2 only ("GPL") or the Common
008:         * Development and Distribution License("CDDL") (collectively, the
009:         * "License"). You may not use this file except in compliance with the
010:         * License. You can obtain a copy of the License at
011:         * http://www.netbeans.org/cddl-gplv2.html
012:         * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013:         * specific language governing permissions and limitations under the
014:         * License.  When distributing the software, include this License Header
015:         * Notice in each file and include the License file at
016:         * nbbuild/licenses/CDDL-GPL-2-CP.  Sun designates this
017:         * particular file as subject to the "Classpath" exception as provided
018:         * by Sun in the GPL Version 2 section of the License file that
019:         * accompanied this code. If applicable, add the following below the
020:         * License Header, with the fields enclosed by brackets [] replaced by
021:         * your own identifying information:
022:         * "Portions Copyrighted [year] [name of copyright owner]"
023:         *
024:         * Contributor(s):
025:         *
026:         * The Original Software is NetBeans. The Initial Developer of the Original
027:         * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
028:         * Microsystems, Inc. All Rights Reserved.
029:         *
030:         * If you wish your version of this file to be governed by only the CDDL
031:         * or only the GPL Version 2, indicate your decision by adding
032:         * "[Contributor] elects to include this software in this distribution
033:         * under the [CDDL or GPL Version 2] license." If you do not indicate a
034:         * single choice of license, a recipient has the option to distribute
035:         * your version of this file under either the CDDL, the GPL Version 2 or
036:         * to extend the choice of license to its licensees as provided above.
037:         * However, if you add GPL Version 2 code and therefore, elected the GPL
038:         * Version 2 license, then the option applies only if the new code is
039:         * made subject to such option by the copyright holder.
040:         */
041:        package org.netbeans.modules.gsfret.editor.semantic;
042:
043:        import java.awt.Color;
044:        import java.io.IOException;
045:        import java.util.Collection;
046:        import java.util.Collections;
047:        import java.util.HashSet;
048:        import java.util.List;
049:        import java.util.Map;
050:        import java.util.Set;
051:        import java.util.logging.Level;
052:        import java.util.logging.Logger;
053:        import javax.swing.text.Document;
054:        import org.netbeans.editor.BaseDocument;
055:        import org.netbeans.modules.gsf.api.OffsetRange;
056:        import org.netbeans.modules.gsf.api.CancellableTask;
057:        import org.netbeans.modules.gsf.api.ColoringAttributes;
058:        import org.netbeans.modules.gsf.api.OccurrencesFinder;
059:        import org.netbeans.napi.gsfret.source.CompilationInfo;
060:        import org.netbeans.modules.editor.highlights.spi.Highlight;
061:        import org.netbeans.modules.editor.highlights.spi.Highlighter;
062:        import org.netbeans.modules.gsf.Language;
063:        import org.netbeans.modules.gsf.LanguageRegistry;
064:        import org.openide.ErrorManager;
065:        import org.openide.cookies.EditorCookie;
066:        import org.openide.filesystems.FileObject;
067:        import org.openide.filesystems.FileUtil;
068:        import org.openide.loaders.DataObject;
069:
070:        /**
071:         * This file is originally from Retouche, the Java Support 
072:         * infrastructure in NetBeans. I have modified the file as little
073:         * as possible to make merging Retouche fixes back as simple as
074:         * possible. 
075:         *
076:         *
077:         * @author Jan Lahoda
078:         */
079:        public class MarkOccurencesHighlighter implements 
080:                CancellableTask<CompilationInfo> {
081:
082:            private FileObject file;
083:
084:            /** Creates a new instance of SemanticHighlighter */
085:            MarkOccurencesHighlighter(FileObject file) {
086:                this .file = file;
087:            }
088:
089:            public static final Color ES_COLOR = new Color(175, 172, 102); // new Color(244, 164, 113);
090:
091:            public Document getDocument() {
092:                try {
093:                    DataObject d = DataObject.find(file);
094:                    EditorCookie ec = (EditorCookie) d
095:                            .getCookie(EditorCookie.class);
096:
097:                    if (ec == null)
098:                        return null;
099:
100:                    return ec.getDocument();
101:                } catch (IOException e) {
102:                    Logger.global.log(Level.INFO,
103:                            "SemanticHighlighter: Cannot find DataObject for file: "
104:                                    + FileUtil.getFileDisplayName(file), e);
105:                    return null;
106:                }
107:            }
108:
109:            public void run(CompilationInfo info) {
110:                resume();
111:
112:                Document doc = getDocument();
113:
114:                if (doc == null) {
115:                    Logger.global.log(Level.INFO,
116:                            "MarkOccurencesHighlighter: Cannot get document!");
117:                    return;
118:                }
119:
120:                long start = System.currentTimeMillis();
121:
122:                int caretPosition = MarkOccurrencesHighlighterFactory
123:                        .getLastPosition(file);
124:
125:                if (isCancelled())
126:                    return;
127:
128:                Set<Highlight> highlights = processImpl(info, doc,
129:                        caretPosition);
130:
131:                if (isCancelled())
132:                    return;
133:
134:                //TimesCollector.getDefault().reportTime(((DataObject) doc.getProperty(Document.StreamDescriptionProperty)).getPrimaryFile(), "occurrences", "Occurrences", (System.currentTimeMillis() - start));
135:
136:                Highlighter.getDefault().setHighlights(file, "occurrences",
137:                        highlights);
138:                OccurrencesMarkProvider.get(doc).setOccurrences(highlights);
139:            }
140:
141:            //    private boolean isIn(CompilationUnitTree cu, SourcePositions sp, Tree tree, int position) {
142:            //        return sp.getStartPosition(cu, tree) <= position && position <= sp.getEndPosition(cu, tree);
143:            //    }
144:            //    
145:            private boolean isIn(int caretPosition, int[] span) {
146:                return span[0] <= caretPosition && caretPosition <= span[1];
147:            }
148:
149:            Set<Highlight> processImpl(CompilationInfo info, Document doc,
150:                    int caretPosition) {
151:                Set<Highlight> localUsages = null;
152:
153:                List<Language> list = LanguageRegistry
154:                        .getInstance()
155:                        .getEmbeddedLanguages((BaseDocument) doc, caretPosition);
156:                Language language = null;
157:                for (Language l : list) {
158:                    if (l.getOccurrencesFinder() != null) {
159:                        language = l;
160:                        break;
161:                    }
162:                }
163:
164:                if (language != null) {
165:                    OccurrencesFinder finder = language.getOccurrencesFinder();
166:                    assert finder != null;
167:
168:                    finder.setCaretPosition(caretPosition);
169:                    OccurrencesFinder task = finder;
170:                    if (task != null) {
171:                        try {
172:                            task.run(info);
173:                        } catch (Exception ex) {
174:                            ErrorManager.getDefault().notify(ex);
175:                        }
176:
177:                        if (isCancelled()) {
178:                            task.cancel();
179:                        }
180:
181:                        Map<OffsetRange, ColoringAttributes> highlights = task
182:                                .getOccurrences();
183:                        if (highlights != null) {
184:                            for (OffsetRange range : highlights.keySet()) {
185:                                if (isCancelled())
186:                                    return Collections.EMPTY_SET;
187:
188:                                ColoringAttributes colors = highlights
189:                                        .get(range);
190:                                //Collection<ColoringAttributes> c = EnumSet.copyOf(set);
191:                                Collection<ColoringAttributes> c = Collections
192:                                        .singletonList(colors);
193:                                Highlight h = Utilities.createHighlight(
194:                                        language, doc, range.getStart(), range
195:                                                .getEnd(), c, null);
196:
197:                                if (h != null) {
198:                                    if (localUsages == null) {
199:                                        localUsages = new HashSet<Highlight>();
200:                                    }
201:                                    localUsages.add(h);
202:                                }
203:                            }
204:                        }
205:                    }
206:                }
207:
208:                //        CompilationUnitTree cu = info.getCompilationUnit();
209:                //        Tree lastTree = null;
210:                //        TreePath tp = info.getTreeUtilities().pathFor(caretPosition);
211:                //        while(tp != null) {
212:                //            if (isCancelled())
213:                //                return Collections.emptySet();
214:                //            
215:                //            Tree tree = tp.getLeaf();
216:                //            //detect caret inside the return type or throws clause:
217:                //            if (tree instanceof MethodTree && (lastTree instanceof IdentifierTree
218:                //                    || lastTree instanceof PrimitiveTypeTree
219:                //                    || lastTree instanceof MemberSelectTree)) {
220:                //                //hopefully found something, check:
221:                //                MethodTree decl = (MethodTree) tree;
222:                //                Tree type = decl.getReturnType();
223:                //                
224:                //                if (isIn(cu, info.getTrees().getSourcePositions(), type, caretPosition)) {
225:                //                    MethodExitDetector med = new MethodExitDetector();
226:                //                    
227:                //                    setExitDetector(med);
228:                //                    
229:                //                    try {
230:                //                        return med.process(info, doc, decl, null);
231:                //                    } finally {
232:                //                        setExitDetector(null);
233:                //                    }
234:                //                }
235:                //                
236:                //                for (Tree exc : decl.getThrows()) {
237:                //                    if (isIn(cu, info.getTrees().getSourcePositions(), exc, caretPosition)) {
238:                //                        MethodExitDetector med = new MethodExitDetector();
239:                //                        
240:                //                        setExitDetector(med);
241:                //                        
242:                //                        try {
243:                //                            return med.process(info, doc, decl, Collections.singletonList(exc));
244:                //                        } finally {
245:                //                            setExitDetector(null);
246:                //                        }
247:                //                    }
248:                //                }
249:                //            }
250:                //            
251:                //            if (localUsages != null)
252:                //                return localUsages;
253:                //            
254:                //            //variable declaration:
255:                //            Element el = info.getTrees().getElement(tp);
256:                //            if (   el != null
257:                //                    && (!(tree instanceof ClassTree) || isIn(caretPosition, Utilities.findIdentifierSpan(tp, cu, info.getTrees().getSourcePositions(), doc)))
258:                //                    && !Utilities.isKeyword(tree)
259:                //                    && (!(tree instanceof MethodTree) || lastTree == null)) {
260:                //                FindLocalUsagesQuery fluq = new FindLocalUsagesQuery();
261:                //                
262:                //                setLocalUsages(fluq);
263:                //                
264:                //                try {
265:                //                    localUsages = fluq.findUsages(el, info, doc);
266:                //                } finally {
267:                //                    setLocalUsages(null);
268:                //                }
269:                //            }
270:                //            lastTree = tree;
271:                //            tp = tp.getParentPath();
272:                //        }
273:                //        
274:                if (localUsages != null)
275:                    return localUsages;
276:
277:                return Collections.emptySet();
278:            }
279:
280:            private boolean canceled;
281:            private MethodExitDetector exitDetector;
282:
283:            //    private FindLocalUsagesQuery localUsages;
284:            //    
285:            //    private final synchronized void setExitDetector(MethodExitDetector detector) {
286:            //        this.exitDetector = detector;
287:            //    }
288:
289:            public final synchronized void cancel() {
290:                canceled = true;
291:
292:                if (exitDetector != null) {
293:                    //            exitDetector.cancel();
294:                }
295:                //        if (localUsages != null) {
296:                //            localUsages.cancel();
297:                //        }
298:            }
299:
300:            protected final synchronized boolean isCancelled() {
301:                return canceled;
302:            }
303:
304:            protected final synchronized void resume() {
305:                canceled = false;
306:            }
307:
308:        }
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