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1
11
12 package org.eclipse.jdt.internal.ui.refactoring.contentassist;
13
14 import java.util.ArrayList  ;
15 import java.util.Arrays ;
16
17 import org.eclipse.core.runtime.Assert;
18
19 import org.eclipse.swt.graphics.Image;
20
21 import org.eclipse.jface.contentassist.IContentAssistSubjectControl;
22 import org.eclipse.jface.contentassist.ISubjectControlContentAssistProcessor;
23 import org.eclipse.jface.text.ITextViewer;
24 import org.eclipse.jface.text.contentassist.ICompletionProposal;
25 import org.eclipse.jface.text.contentassist.IContentAssistProcessor;
26 import org.eclipse.jface.text.contentassist.IContextInformation;
27 import org.eclipse.jface.text.contentassist.IContextInformationValidator;
28
29 import org.eclipse.jface.resource.ImageDescriptor;
30
31 import org.eclipse.jdt.internal.ui.JavaPlugin;
32 import org.eclipse.jdt.internal.ui.JavaPluginImages;
33 import org.eclipse.jdt.internal.ui.JavaUIMessages;
34 import org.eclipse.jdt.internal.ui.text.java.JavaCompletionProposal;
35 import org.eclipse.jdt.internal.ui.viewsupport.ImageDescriptorRegistry;
36
37 public class VariableNamesProcessor implements IContentAssistProcessor, ISubjectControlContentAssistProcessor {
38
39 private String fErrorMessage;
40
41 private String [] fTempNameProposals;
42
43 private ImageDescriptorRegistry fImageRegistry;
44 private ImageDescriptor fProposalImageDescriptor;
45
46 public VariableNamesProcessor(String [] tempNameProposals) {
47 fTempNameProposals= (String []) tempNameProposals.clone();
48 Arrays.sort(fTempNameProposals);
49 fImageRegistry= JavaPlugin.getImageDescriptorRegistry();
50 fProposalImageDescriptor= JavaPluginImages.DESC_OBJS_LOCAL_VARIABLE;
51
52 }
53
54 public void setProposalImageDescriptor(ImageDescriptor proposalImageDescriptor) {
55 fProposalImageDescriptor= proposalImageDescriptor;
56 }
57
58
61 public ICompletionProposal[] computeCompletionProposals(ITextViewer viewer, int documentOffset) {
62 Assert.isTrue(false, "ITextViewer not supported"); return null;
64 }
65
66
69 public IContextInformation[] computeContextInformation(ITextViewer viewer, int documentOffset) {
70 Assert.isTrue(false, "ITextViewer not supported"); return null;
72 }
73
74
77 public char[] getCompletionProposalAutoActivationCharacters() {
78 return null;
79 }
80
81
84 public char[] getContextInformationAutoActivationCharacters() {
85 return null; }
87
88
91 public String getErrorMessage() {
92 return fErrorMessage;
93 }
94
95
98 public IContextInformationValidator getContextInformationValidator() {
99 return null; }
101
102
105 public IContextInformation[] computeContextInformation(IContentAssistSubjectControl contentAssistSubject, int documentOffset) {
106 return null; }
108
109
112 public ICompletionProposal[] computeCompletionProposals(IContentAssistSubjectControl contentAssistSubject, int documentOffset) {
113 if (fTempNameProposals.length == 0)
114 return null;
115 String input= contentAssistSubject.getDocument().get();
116
117 ArrayList proposals= new ArrayList ();
118 String prefix= input.substring(0, documentOffset);
119 Image image= fImageRegistry.get(fProposalImageDescriptor);
120 for (int i= 0; i < fTempNameProposals.length; i++) {
121 String tempName= fTempNameProposals[i];
122 if (tempName.length() == 0 || ! tempName.startsWith(prefix))
123 continue;
124 JavaCompletionProposal proposal= new JavaCompletionProposal(tempName, 0, input.length(), image, tempName, 0);
125 proposals.add(proposal);
126 }
127 fErrorMessage= proposals.size() > 0 ? null : JavaUIMessages.JavaEditor_codeassist_noCompletions;
128 return (ICompletionProposal[]) proposals.toArray(new ICompletionProposal[proposals.size()]);
129 }
130
131 }
132 |
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