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1
11
12 package org.eclipse.jdt.internal.ui.text.correction;
13
14 import org.eclipse.core.runtime.CoreException;
15 import org.eclipse.core.runtime.IStatus;
16 import org.eclipse.core.runtime.NullProgressMonitor;
17 import org.eclipse.core.runtime.Status;
18
19 import org.eclipse.swt.graphics.Image;
20 import org.eclipse.swt.graphics.Point;
21
22 import org.eclipse.jface.text.IDocument;
23 import org.eclipse.jface.text.IRewriteTarget;
24 import org.eclipse.jface.text.contentassist.IContextInformation;
25 import org.eclipse.jface.text.link.LinkedModeModel;
26
27 import org.eclipse.ui.IEditorPart;
28
29 import org.eclipse.ltk.core.refactoring.Change;
30 import org.eclipse.ltk.core.refactoring.IUndoManager;
31 import org.eclipse.ltk.core.refactoring.NullChange;
32 import org.eclipse.ltk.core.refactoring.RefactoringCore;
33 import org.eclipse.ltk.core.refactoring.RefactoringStatus;
34
35 import org.eclipse.jdt.internal.corext.util.Messages;
36
37 import org.eclipse.jdt.ui.text.java.IJavaCompletionProposal;
38
39 import org.eclipse.jdt.internal.ui.JavaPlugin;
40 import org.eclipse.jdt.internal.ui.util.ExceptionHandler;
41
42
49 public class ChangeCorrectionProposal implements IJavaCompletionProposal, ICommandAccess {
50
51 private Change fChange;
52 private String  fName;
53 private int fRelevance;
54 private Image fImage;
55 private String fCommandId;
56
57
67 public ChangeCorrectionProposal(String name, Change change, int relevance, Image image) {
68 if (name == null) {
69 throw new IllegalArgumentException ("Name must not be null"); }
71 fName= name;
72 fChange= change;
73 fRelevance= relevance;
74 fImage= image;
75 fCommandId= null;
76 }
77
78
81 public void apply(IDocument document) {
82 try {
83 performChange(JavaPlugin.getActivePage().getActiveEditor(), document);
84 } catch (CoreException e) {
85 ExceptionHandler.handle(e, CorrectionMessages.ChangeCorrectionProposal_error_title, CorrectionMessages.ChangeCorrectionProposal_error_message);
86 }
87 }
88
89
98 protected void performChange(IEditorPart activeEditor, IDocument document) throws CoreException {
99 Change change= null;
100 IRewriteTarget rewriteTarget= null;
101 try {
102 change= getChange();
103 if (change != null) {
104 if (document != null) {
105 LinkedModeModel.closeAllModels(document);
106 }
107 if (activeEditor != null) {
108 rewriteTarget= (IRewriteTarget) activeEditor.getAdapter(IRewriteTarget.class);
109 if (rewriteTarget != null) {
110 rewriteTarget.beginCompoundChange();
111 }
112 }
113
114 change.initializeValidationData(new NullProgressMonitor());
115 RefactoringStatus valid= change.isValid(new NullProgressMonitor());
116 if (valid.hasFatalError()) {
117 IStatus status= new Status(IStatus.ERROR, JavaPlugin.getPluginId(), IStatus.ERROR,
118 valid.getMessageMatchingSeverity(RefactoringStatus.FATAL), null);
119 throw new CoreException(status);
120 } else {
121 IUndoManager manager= RefactoringCore.getUndoManager();
122 manager.aboutToPerformChange(change);
123 Change undoChange= change.perform(new NullProgressMonitor());
124 manager.changePerformed(change, true);
125 if (undoChange != null) {
126 undoChange.initializeValidationData(new NullProgressMonitor());
127 manager.addUndo(getName(), undoChange);
128 }
129 }
130 }
131 } finally {
132 if (rewriteTarget != null) {
133 rewriteTarget.endCompoundChange();
134 }
135
136 if (change != null) {
137 change.dispose();
138 }
139 }
140 }
141
142
145 public String getAdditionalProposalInfo() {
146 StringBuffer buf= new StringBuffer ();
147 buf.append("<p>"); try {
149 Change change= getChange();
150 if (change != null) {
151 String name= change.getName();
152 if (name.length() == 0) {
153 return null;
154 }
155 buf.append(name);
156 } else {
157 return null;
158 }
159 } catch (CoreException e) {
160 buf.append("Unexpected error when accessing this proposal:<p><pre>"); buf.append(e.getLocalizedMessage());
162 buf.append("</pre>"); }
164 buf.append("</p>"); return buf.toString();
166 }
167
168
171 public IContextInformation getContextInformation() {
172 return null;
173 }
174
175
178 public String getDisplayString() {
179 String shortCutString= CorrectionCommandHandler.getShortCutString(getCommandId());
180 if (shortCutString != null) {
181 return Messages.format(CorrectionMessages.ChangeCorrectionProposal_name_with_shortcut, new String [] { getName(), shortCutString });
182 }
183 return getName();
184 }
185
186
191 public String getName() {
192 return fName;
193 }
194
195
198 public Image getImage() {
199 return fImage;
200 }
201
202
205 public Point getSelection(IDocument document) {
206 return null;
207 }
208
209
214 public void setImage(Image image) {
215 fImage= image;
216 }
217
218
224 public final Change getChange() throws CoreException {
225 if (fChange == null) {
226 fChange= createChange();
227 }
228 return fChange;
229 }
230
231
239 protected Change createChange() throws CoreException {
240 return new NullChange();
241 }
242
243
248 public void setDisplayName(String name) {
249 if (name == null) {
250 throw new IllegalArgumentException ("Name must not be null"); }
252 fName= name;
253 }
254
255
258 public int getRelevance() {
259 return fRelevance;
260 }
261
262
266 public void setRelevance(int relevance) {
267 fRelevance= relevance;
268 }
269
270
273 public String getCommandId() {
274 return fCommandId;
275 }
276
277
283 public void setCommandId(String commandId) {
284 fCommandId= commandId;
285 }
286
287 }
288 |
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