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1
11 package org.eclipse.jdt.internal.debug.ui.display;
12
13
14 import org.eclipse.core.runtime.IAdaptable;
15 import org.eclipse.core.runtime.IPath;
16 import org.eclipse.debug.core.DebugException;
17 import org.eclipse.debug.core.ILaunch;
18 import org.eclipse.debug.core.model.IExpression;
19 import org.eclipse.debug.core.model.IValue;
20 import org.eclipse.debug.core.model.IVariable;
21 import org.eclipse.debug.ui.DebugUITools;
22 import org.eclipse.debug.ui.IDebugView;
23 import org.eclipse.jdt.core.IJavaProject;
24 import org.eclipse.jdt.core.IType;
25 import org.eclipse.jdt.core.JavaModelException;
26 import org.eclipse.jdt.debug.core.IJavaArray;
27 import org.eclipse.jdt.debug.core.IJavaStackFrame;
28 import org.eclipse.jdt.internal.debug.ui.JDIDebugUIPlugin;
29 import org.eclipse.jface.text.ITextSelection;
30 import org.eclipse.jface.text.ITextViewer;
31 import org.eclipse.jface.text.contentassist.ICompletionProposal;
32 import org.eclipse.jface.viewers.ISelection;
33 import org.eclipse.jface.viewers.IStructuredSelection;
34 import org.eclipse.ui.IWorkbenchPage;
35 import org.eclipse.ui.IWorkbenchWindow;
36
37 public class DetailsCompletionProcessor extends DisplayCompletionProcessor {
38
39
42 public ICompletionProposal[] computeCompletionProposals(ITextViewer viewer, int documentOffset) {
43 try {
44 setErrorMessage(DisplayMessages.DetailsCompletionProcessor_0); IAdaptable context = DebugUITools.getDebugContext();
46 if (context == null) {
47 return new ICompletionProposal[0];
48 }
49 IJavaStackFrame stackFrame= (IJavaStackFrame)context.getAdapter(IJavaStackFrame.class);
50 if (stackFrame == null) {
51 return new ICompletionProposal[0];
52 }
53
54 setErrorMessage(DisplayMessages.DetailsCompletionProcessor_1); IWorkbenchWindow window= JDIDebugUIPlugin.getActiveWorkbenchWindow();
56 if (window == null) {
57 return new ICompletionProposal[0];
58 }
59 IWorkbenchPage page= window.getActivePage();
60 if (page == null) {
61 return new ICompletionProposal[0];
62 }
63 IDebugView view= (IDebugView)page.getActivePart();
64 if (view == null) {
65 return new ICompletionProposal[0];
66 }
67 ISelection selection= view.getViewer().getSelection();
68 if (selection.isEmpty() || !(selection instanceof IStructuredSelection)) {
69 return super.computeCompletionProposals(stackFrame, viewer, documentOffset);
70 }
71
72 IStructuredSelection viewerSelection= (IStructuredSelection)selection;
73 if (viewerSelection.size() > 1) {
74 return new ICompletionProposal[0];
75 }
76 Object  element= viewerSelection.getFirstElement();
77 try {
78 setErrorMessage(null);
79 ITextSelection textSelection= (ITextSelection)viewer.getSelectionProvider().getSelection();
80 IType receivingType= getReceivingType(stackFrame.getLaunch(), element);
81 if (receivingType == null) {
82 setErrorMessage(DisplayMessages.DetailsCompletionProcessor_2); return new ICompletionProposal[0];
84 }
85 IJavaProject project = receivingType.getJavaProject();
86
87 configureResultCollector(project, textSelection);
88 int insertionPosition= computeInsertionPosition(receivingType, stackFrame);
89 receivingType.codeComplete(viewer.getDocument().get().toCharArray(), insertionPosition, documentOffset,
90 new char[0][], new char[0][],
91 new int[0], false, getCollector());
92
93 return order(getCollector().getJavaCompletionProposals());
96 } catch (JavaModelException x) {
97 handle(viewer, x);
98 } catch (DebugException de) {
99 handle(viewer, de);
100 }
101 return new ICompletionProposal[0];
102 } finally {
103 releaseCollector();
104 }
105 }
106
107 private IType getReceivingType(ILaunch launch, Object element) throws DebugException {
108 String originalTypeName= getReceivingTypeName(element);
109 if (originalTypeName == null) {
110 return null;
111 }
112
113 String sourceName= originalTypeName;
114 int genIndex = sourceName.indexOf('<');
116 if (genIndex >= 0) {
117 sourceName = sourceName.substring(0, genIndex);
118 }
119 int dollarIndex= sourceName.indexOf('$');
120 if (dollarIndex >= 0) {
121 sourceName= sourceName.substring(0, dollarIndex);
122 }
123 int index = sourceName.lastIndexOf('.');
124 if (index >= 0) {
125 sourceName = sourceName.replace('.', IPath.SEPARATOR);
126 }
127 sourceName+=".java";
129 return resolveType(launch, originalTypeName, sourceName);
130 }
131
132 private String getReceivingTypeName(Object element) {
133
134 IValue value= null;
135 try {
136 if (element instanceof IVariable) {
137 value= ((IVariable)element).getValue();
138 if (value instanceof IJavaArray) {
139 return null;
140 }
141 } else if (element instanceof IExpression) {
142 value= ((IExpression)element).getValue();
143 }
144 if (value != null) {
145 return value.getReferenceTypeName();
146 }
147 } catch (DebugException de) {
148 JDIDebugUIPlugin.log(de);
149 }
150
151 return null;
152 }
153 }
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