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1
19
20 package org.netbeans.modules.web.core.syntax.completion;
21 import java.io.IOException  ;
22 import java.util.List ;
23 import java.util.logging.Level ;
24 import java.util.logging.Logger ;
25 import javax.swing.text.BadLocationException ;
26 import javax.swing.text.Document ;
27 import javax.swing.text.JTextComponent ;
28 import org.netbeans.api.java.source.JavaSource;
29 import org.netbeans.api.jsp.lexer.JspTokenId;
30 import org.netbeans.api.lexer.TokenHierarchy;
31 import org.netbeans.api.lexer.TokenSequence;
32 import org.netbeans.editor.Utilities;
33 import org.netbeans.modules.editor.java.JavaCompletionProvider;
34 import org.netbeans.modules.web.core.syntax.SimplifiedJSPServlet;
35 import org.netbeans.spi.editor.completion.CompletionItem;
36 import org.netbeans.spi.editor.completion.CompletionProvider;
37 import org.netbeans.spi.editor.completion.CompletionResultSet;
38 import org.netbeans.spi.editor.completion.CompletionTask;
39 import org.netbeans.spi.editor.completion.support.AsyncCompletionQuery;
40 import org.netbeans.spi.editor.completion.support.AsyncCompletionTask;
41 import org.openide.filesystems.FileObject;
42
43
51 public class JavaJSPCompletionProvider implements CompletionProvider {
52 private final JavaCompletionProvider javaCompletionProvider = new JavaCompletionProvider();
53 private static final Logger logger = Logger.getLogger(JavaJSPCompletionProvider.class.getName());
54
55 public CompletionTask createTask(int queryType, final JTextComponent component) {
56 if ((queryType & COMPLETION_QUERY_TYPE) != 0){
57 Document doc = Utilities.getDocument(component);
58 int caretOffset = component.getCaret().getDot();
59
60 if (isWithinScriptlet(doc, caretOffset)){
61 return new AsyncCompletionTask(new EmbeddedJavaCompletionQuery(component, queryType), component);
63 }
64 }
65
66 return null;
67 }
68
69 private boolean isWithinScriptlet(Document doc, int offset){
70 TokenHierarchy tokenHierarchy = TokenHierarchy.get(doc);
71 TokenSequence tokenSequence = tokenHierarchy.tokenSequence();
72
73 tokenSequence.move(offset);
74 if (tokenSequence.moveNext() || tokenSequence.movePrevious()) {
75 Object tokenID = tokenSequence.token().id();
76 if (tokenID == JspTokenId.SCRIPTLET){
77 return true;
78 } else if (tokenID == JspTokenId.SYMBOL2) {
79 tokenSequence.movePrevious();
81
82 if (tokenSequence.token().id() == JspTokenId.SCRIPTLET){
83 return true;
84 }
85 }
86 }
87
88 return false;
89 }
90
91 public int getAutoQueryTypes(JTextComponent component, String typedText) {
92 return javaCompletionProvider.getAutoQueryTypes(component, typedText);
93 }
94
95
96 static class EmbeddedJavaCompletionQuery extends AsyncCompletionQuery {
97 protected int queryType;
98 protected JTextComponent component;
99
100 public EmbeddedJavaCompletionQuery(JTextComponent component, int queryType){
101 this.queryType = queryType;
102 this.component = component;
103 }
104
105 protected void query(CompletionResultSet resultSet, Document doc,
106 int caretOffset) {
107
108 SimplifiedJSPServlet simplifiedJSPServlet = new SimplifiedJSPServlet(doc);
109 try{
110 simplifiedJSPServlet.process();
111 String fakedClassBody = simplifiedJSPServlet.getVirtualClassBody();
112 int shiftedOffset = simplifiedJSPServlet.getShiftedOffset(caretOffset);
113
114 if (shiftedOffset >= 0){
115 logger.fine("JSP CC: delegating CC query to java file:\n" + fakedClassBody.substring(0, shiftedOffset)
117 + "|" + fakedClassBody.substring(shiftedOffset) + "\n");
119 CompletionQueryDelegatedToJava delegate = new CompletionQueryDelegatedToJava(
120 caretOffset, shiftedOffset, queryType);
121
122 delegate.create(doc, fakedClassBody);
123 List <? extends CompletionItem> items = delegate.getCompletionItems();
124 resultSet.addAllItems(items);
125 } else{
126 logger.severe("caretOffset outside of embedded java code"); }
128 } catch (BadLocationException e){
129 logger.log(Level.SEVERE, e.getMessage(), e);
130 } finally{
131 resultSet.finish();
132 }
133 }
134 }
135
136 static class CompletionQueryDelegatedToJava extends SimplifiedJSPServlet.VirtualJavaClass{
137 private int caretOffset;
138 private int queryType;
139 private int shiftedOffset;
140 private List <? extends CompletionItem> completionItems;
141
142 CompletionQueryDelegatedToJava(int caretOffset, int shiftedOffset, int queryType){
143 this.caretOffset = caretOffset;
144 this.shiftedOffset = shiftedOffset;
145 this.queryType = queryType;
146 }
147
148 protected void process(FileObject fileObject, JavaSource javaSource){
149 try{
150 completionItems = JavaCompletionProvider.query(
151 javaSource, queryType, shiftedOffset, caretOffset);
152 } catch (IOException e){
153 logger.log(Level.SEVERE, e.getMessage(), e);
154 }
155 }
156
157 List <? extends CompletionItem> getCompletionItems(){
158 return completionItems;
159 }
160 }
161
162 }
163
164 |
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