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1
11 package org.eclipse.jdt.internal.ui.refactoring;
12
13 import java.lang.reflect.InvocationTargetException  ;
14 import java.util.Arrays ;
15 import java.util.HashSet ;
16 import java.util.Iterator ;
17 import java.util.LinkedList ;
18 import java.util.Set ;
19
20 import org.eclipse.core.runtime.Assert;
21 import org.eclipse.core.runtime.IProgressMonitor;
22 import org.eclipse.core.runtime.OperationCanceledException;
23
24 import org.eclipse.swt.SWT;
25 import org.eclipse.swt.events.ModifyEvent;
26 import org.eclipse.swt.events.ModifyListener;
27 import org.eclipse.swt.events.SelectionAdapter;
28 import org.eclipse.swt.events.SelectionEvent;
29 import org.eclipse.swt.graphics.Image;
30 import org.eclipse.swt.layout.GridData;
31 import org.eclipse.swt.layout.GridLayout;
32 import org.eclipse.swt.widgets.Button;
33 import org.eclipse.swt.widgets.Composite;
34 import org.eclipse.swt.widgets.Control;
35 import org.eclipse.swt.widgets.Label;
36 import org.eclipse.swt.widgets.Shell;
37 import org.eclipse.swt.widgets.Text;
38
39 import org.eclipse.jface.dialogs.Dialog;
40 import org.eclipse.jface.operation.IRunnableWithProgress;
41 import org.eclipse.jface.viewers.ArrayContentProvider;
42 import org.eclipse.jface.viewers.DoubleClickEvent;
43 import org.eclipse.jface.viewers.IDoubleClickListener;
44 import org.eclipse.jface.viewers.ILabelProvider;
45 import org.eclipse.jface.viewers.ISelectionChangedListener;
46 import org.eclipse.jface.viewers.IStructuredSelection;
47 import org.eclipse.jface.viewers.ITableLabelProvider;
48 import org.eclipse.jface.viewers.SelectionChangedEvent;
49 import org.eclipse.jface.viewers.TableViewer;
50 import org.eclipse.jface.viewers.Viewer;
51 import org.eclipse.jface.viewers.ViewerComparator;
52 import org.eclipse.jface.window.Window;
53
54 import org.eclipse.ui.PlatformUI;
55 import org.eclipse.ui.dialogs.SelectionDialog;
56
57 import org.eclipse.ltk.core.refactoring.RefactoringStatus;
58
59 import org.eclipse.jdt.core.IType;
60 import org.eclipse.jdt.core.JavaModelException;
61
62 import org.eclipse.jdt.internal.corext.refactoring.structure.ExtractSupertypeProcessor;
63 import org.eclipse.jdt.internal.corext.refactoring.structure.ExtractSupertypeRefactoring;
64
65 import org.eclipse.jdt.ui.JavaElementComparator;
66 import org.eclipse.jdt.ui.JavaElementLabels;
67
68 import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
69 import org.eclipse.jdt.internal.ui.dialogs.TextFieldNavigationHandler;
70 import org.eclipse.jdt.internal.ui.util.ExceptionHandler;
71 import org.eclipse.jdt.internal.ui.util.SWTUtil;
72 import org.eclipse.jdt.internal.ui.viewsupport.AppearanceAwareLabelProvider;
73 import org.eclipse.jdt.internal.ui.viewsupport.JavaElementImageProvider;
74
75
81 public final class ExtractSupertypeMemberPage extends PullUpMemberPage {
82
83
84 private static class SupertypeSelectionDialog extends SelectionDialog {
85
86
87 private TableViewer fViewer;
88
89
95 public SupertypeSelectionDialog(final Shell shell) {
96 super(shell);
97 }
98
99
102 public void create() {
103 setShellStyle(SWT.DIALOG_TRIM | SWT.RESIZE);
104 super.create();
105 getShell().setText(RefactoringMessages.ExtractSupertypeMemberPage_choose_type_caption);
106 }
107
108
111 protected Control createDialogArea(final Composite composite) {
112 Assert.isNotNull(composite);
113 setMessage(RefactoringMessages.ExtractSupertypeMemberPage_choose_type_message);
114 final Composite control= (Composite) super.createDialogArea(composite);
115 createMessageArea(control);
116 fViewer= new TableViewer(control, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
117 fViewer.setLabelProvider(createLabelProvider());
118 fViewer.setContentProvider(new ArrayContentProvider());
119 fViewer.setComparator(new SupertypeSelectionViewerSorter());
120 fViewer.addSelectionChangedListener(new ISelectionChangedListener() {
121
122 public void selectionChanged(final SelectionChangedEvent event) {
123 setSelectionResult(((IStructuredSelection) fViewer.getSelection()).toArray());
124 }
125 });
126 fViewer.addDoubleClickListener(new IDoubleClickListener() {
127
128 public void doubleClick(final DoubleClickEvent event) {
129 setSelectionResult(((IStructuredSelection) fViewer.getSelection()).toArray());
130 close();
131 }
132 });
133 final GridData data= new GridData(GridData.FILL_BOTH);
134 data.heightHint= convertHeightInCharsToPixels(15);
135 data.widthHint= convertWidthInCharsToPixels(55);
136 fViewer.getTable().setLayoutData(data);
137 applyDialogFont(control);
138 return control;
139 }
140
141
147 public void setInput(final Object object) {
148 fViewer.setInput(object);
149 }
150 }
151
152
153 private static class SupertypeSelectionLabelProvider extends AppearanceAwareLabelProvider implements ITableLabelProvider {
154
155
163 public SupertypeSelectionLabelProvider(final long textFlags, final int imageFlags) {
164 super(textFlags, imageFlags);
165 }
166
167
170 public Image getColumnImage(final Object element, final int index) {
171 return getImage(element);
172 }
173
174
177 public String getColumnText(final Object element, final int index) {
178 return getText(element);
179 }
180 }
181
182
183 private static class SupertypeSelectionViewerSorter extends ViewerComparator {
184
185
188 public int compare(final Viewer viewer, final Object first, final Object second) {
189 final IType predecessor= (IType) first;
190 final IType successor= (IType) second;
191 return getComparator().compare(predecessor.getElementName(), successor.getElementName());
192 }
193 }
194
195
200 private static ILabelProvider createLabelProvider() {
201 return new SupertypeSelectionLabelProvider(JavaElementLabels.T_TYPE_PARAMETERS | JavaElementLabels.T_POST_QUALIFIED, JavaElementImageProvider.OVERLAY_ICONS);
202 }
203
204
205 private Text fNameField;
206
207
208 private TableViewer fTableViewer;
209
210
211 private final Set fTypesToExtract= new HashSet (2);
212
213
221 public ExtractSupertypeMemberPage(final String name, final ExtractSupertypeMethodPage page) {
222 super(name, page);
223 setDescription(RefactoringMessages.ExtractSupertypeMemberPage_page_title);
224 METHOD_LABELS[PULL_UP_ACTION]= RefactoringMessages.ExtractSupertypeMemberPage_extract;
225 METHOD_LABELS[DECLARE_ABSTRACT_ACTION]= RefactoringMessages.ExtractSupertypeMemberPage_declare_abstract;
226 TYPE_LABELS[PULL_UP_ACTION]= RefactoringMessages.ExtractSupertypeMemberPage_extract;
227 }
228
229
232 protected void checkPageCompletionStatus(final boolean display) {
233 final RefactoringStatus status= getProcessor().checkExtractedCompilationUnit();
234 setMessage(null);
235 if (display)
236 setPageComplete(status);
237 else
238 setPageComplete(!status.hasFatalError());
239 fSuccessorPage.fireSettingsChanged();
240 }
241
242
248 protected void computeCandidateTypes() throws InterruptedException {
249 if (fCandidateTypes != null && fCandidateTypes.length > 0)
250 return;
251 try {
252 getWizard().getContainer().run(true, true, new IRunnableWithProgress() {
253
254 public void run(final IProgressMonitor monitor) throws InvocationTargetException {
255 try {
256 fCandidateTypes= getProcessor().getCandidateTypes(new RefactoringStatus(), monitor);
257 } finally {
258 monitor.done();
259 }
260 }
261 });
262 } catch (InvocationTargetException exception) {
263 ExceptionHandler.handle(exception, getShell(), RefactoringMessages.ExtractSupertypeMemberPage_extract_supertype, RefactoringMessages.PullUpInputPage_exception);
264 } catch (InterruptedException exception) {
265 fCandidateTypes= new IType[0];
266 throw new InterruptedException ();
267 } catch (OperationCanceledException exception) {
268 fCandidateTypes= new IType[0];
269 }
270 }
271
272
278 protected void createButtonComposite(final Composite parent) {
279 final Composite buttons= new Composite(parent, SWT.NONE);
280 final GridLayout layout= new GridLayout();
281 layout.marginHeight= 0;
282 layout.marginWidth= 0;
283 buttons.setLayout(layout);
284 buttons.setLayoutData(new GridData(GridData.FILL_VERTICAL));
285
286 final Button addButton= new Button(buttons, SWT.PUSH);
287 addButton.setText(RefactoringMessages.ExtractSupertypeMemberPage_add_button_label);
288 addButton.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
289 SWTUtil.setButtonDimensionHint(addButton);
290 addButton.addSelectionListener(new SelectionAdapter() {
291
292 public void widgetSelected(final SelectionEvent event) {
293 try {
294 computeCandidateTypes();
295 } catch (InterruptedException exception) {
296 return;
297 }
298 final LinkedList list= new LinkedList (Arrays.asList(fCandidateTypes));
299 for (final Iterator outer= list.iterator(); outer.hasNext();) {
300 final IType first= (IType) outer.next();
301 for (final Iterator inner= fTypesToExtract.iterator(); inner.hasNext();) {
302 final IType second= (IType) inner.next();
303 if (second.getFullyQualifiedName().equals(first.getFullyQualifiedName()))
304 outer.remove();
305 }
306 }
307 final SupertypeSelectionDialog dialog= new SupertypeSelectionDialog(getShell());
308 dialog.create();
309 dialog.setInput(list.toArray());
310 final int result= dialog.open();
311 if (result == Window.OK) {
312 final Object [] objects= dialog.getResult();
313 if (objects != null && objects.length > 0) {
314 for (int index= 0; index < objects.length; index++) {
315 fTypesToExtract.add(objects[index]);
316 }
317 fTableViewer.setInput(fTypesToExtract.toArray());
318 handleTypesChanged();
319 }
320 }
321 }
322 });
323
324 final Button removeButton= new Button(buttons, SWT.PUSH);
325 removeButton.setText(RefactoringMessages.ExtractSupertypeMemberPage_remove_button_label);
326 removeButton.setEnabled(fCandidateTypes.length > 0 && !fTableViewer.getSelection().isEmpty());
327 removeButton.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
328 SWTUtil.setButtonDimensionHint(removeButton);
329 removeButton.addSelectionListener(new SelectionAdapter() {
330
331 public void widgetSelected(final SelectionEvent event) {
332 final IStructuredSelection selection= (IStructuredSelection) fTableViewer.getSelection();
333 if (!selection.isEmpty()) {
334 final IType declaring= getDeclaringType();
335 for (final Iterator iterator= selection.iterator(); iterator.hasNext();) {
336 final Object element= iterator.next();
337 if (!declaring.equals(element))
338 fTypesToExtract.remove(element);
339 }
340 fTableViewer.setInput(fTypesToExtract.toArray());
341 handleTypesChanged();
342 }
343 }
344 });
345 fTableViewer.addSelectionChangedListener(new ISelectionChangedListener() {
346
347 public void selectionChanged(final SelectionChangedEvent event) {
348 final IStructuredSelection selection= (IStructuredSelection) fTableViewer.getSelection();
349 if (selection.isEmpty()) {
350 removeButton.setEnabled(false);
351 return;
352 } else {
353 final Object [] elements= selection.toArray();
354 if (elements.length == 1 && elements[0].equals(getDeclaringType())) {
355 removeButton.setEnabled(false);
356 return;
357 }
358 }
359 removeButton.setEnabled(true);
360 }
361 });
362 }
363
364
367 public void createControl(final Composite parent) {
368 final Composite composite= new Composite(parent, SWT.NONE);
369 final GridLayout layout= new GridLayout();
370 layout.numColumns= 2;
371 composite.setLayout(layout);
372 createSuperTypeField(composite);
373 createSpacer(composite);
374 createSuperTypeCheckbox(composite);
375 createInstanceOfCheckbox(composite, layout.marginWidth);
376 createStubCheckbox(composite);
377 createSuperTypeControl(composite);
378 createSpacer(composite);
379 createMemberTableLabel(composite);
380 createMemberTableComposite(composite);
381 createStatusLine(composite);
382
383 setControl(composite);
384 Dialog.applyDialogFont(composite);
385 initializeEnablement();
386 initializeCheckboxes();
387 PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(), IJavaHelpContextIds.EXTRACT_SUPERTYPE_WIZARD_PAGE);
388 }
389
390
393 protected void createSuperTypeControl(final Composite parent) {
394 try {
395 createSuperTypeList(parent);
396 } catch (JavaModelException exception) {
397 ExceptionHandler.handle(exception, getShell(), RefactoringMessages.ExtractSupertypeMemberPage_extract_supertype, RefactoringMessages.PullUpInputPage_exception);
398 }
399 }
400
401
407 protected void createSuperTypeField(final Composite parent) {
408 final Label label= new Label(parent, SWT.NONE);
409 label.setText(RefactoringMessages.ExtractSupertypeMemberPage_name_label);
410 label.setLayoutData(new GridData());
411
412 fNameField= new Text(parent, SWT.BORDER);
413 fNameField.addModifyListener(new ModifyListener() {
414
415 public void modifyText(ModifyEvent e) {
416 handleNameChanged(fNameField.getText());
417 }
418 });
419 fNameField.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false));
420 TextFieldNavigationHandler.install(fNameField);
421 }
422
423
429 protected void createSuperTypeList(final Composite parent) throws JavaModelException {
430 createSpacer(parent);
431
432 final Label label= new Label(parent, SWT.NONE);
433 label.setText(RefactoringMessages.ExtractSupertypeMemberPage_types_list_caption);
434 GridData data= new GridData();
435 data.horizontalSpan= 2;
436 label.setLayoutData(data);
437
438 final Composite composite= new Composite(parent, SWT.NONE);
439 final GridLayout layout= new GridLayout();
440 layout.numColumns= 2;
441 layout.marginWidth= 0;
442 layout.marginHeight= 0;
443 composite.setLayout(layout);
444 data= new GridData(GridData.FILL_BOTH);
445 data.horizontalSpan= 2;
446 composite.setLayoutData(data);
447
448 fTableViewer= new TableViewer(composite, SWT.MULTI | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
449 data= new GridData(GridData.FILL_BOTH);
450 data.heightHint= SWTUtil.getTableHeightHint(fTableViewer.getTable(), 3);
451 fTableViewer.getTable().setLayoutData(data);
452 fTableViewer.setLabelProvider(createLabelProvider());
453 fTableViewer.setContentProvider(new ArrayContentProvider());
454 fTableViewer.setComparator(new JavaElementComparator());
455 fTypesToExtract.add(getDeclaringType());
456 fTableViewer.setInput(fTypesToExtract.toArray());
457
458 createButtonComposite(composite);
459 }
460
461
464 protected String getCreateStubsButtonLabel() {
465 return RefactoringMessages.ExtractSupertypeMemberPage_create_stubs_label;
466 }
467
468
471 protected String getDeclareAbstractActionLabel() {
472 return RefactoringMessages.ExtractSupertypeMemberPage_declare_abstract;
473 }
474
475
480 public IType getDeclaringType() {
481 return getProcessor().getDeclaringType();
482 }
483
484
487 public IType getDestinationType() {
488 return getProcessor().computeExtractedType(fNameField.getText());
489 }
490
491
494 public ExtractSupertypeRefactoring getExtractSuperTypeRefactoring() {
495 return (ExtractSupertypeRefactoring) getRefactoring();
496 }
497
498
501 protected String getInstanceofButtonLabel() {
502 return RefactoringMessages.ExtractSupertypeMemberPage_use_supertype_label;
503 }
504
505
508 protected String getNoMembersMessage() {
509 return RefactoringMessages.ExtractSupertypeMemberPage_no_members_selected;
510 }
511
512
517 protected ExtractSupertypeProcessor getProcessor() {
518 return getExtractSuperTypeRefactoring().getExtractSupertypeProcessor();
519 }
520
521
524 protected String getPullUpActionLabel() {
525 return RefactoringMessages.ExtractSupertypeMemberPage_extract;
526 }
527
528
531 protected String getReplaceButtonLabel() {
532 return RefactoringMessages.ExtractSupertypeMemberPage_use_instanceof_label;
533 }
534
535
538 protected int getTableRowCount() {
539 return 6;
540 }
541
542
548 protected void handleNameChanged(final String name) {
549 if (name != null)
550 getProcessor().setTypeName(name);
551 checkPageCompletionStatus(true);
552 }
553
554
557 protected void handleTypesChanged() {
558 getProcessor().setTypesToExtract((IType[]) fTypesToExtract.toArray(new IType[fTypesToExtract.size()]));
559 }
560
561
564 public void setVisible(final boolean visible) {
565 super.setVisible(visible);
566 if (visible) {
567 fNameField.setFocus();
568 getProcessor().resetChanges();
569 }
570 }
571 } |
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