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1
11 package org.eclipse.jdt.internal.ui.refactoring.reorg;
12
13 import org.eclipse.core.resources.IResource;
14
15 import org.eclipse.swt.SWT;
16 import org.eclipse.swt.events.SelectionAdapter;
17 import org.eclipse.swt.events.SelectionEvent;
18 import org.eclipse.swt.layout.GridData;
19 import org.eclipse.swt.layout.GridLayout;
20 import org.eclipse.swt.widgets.Button;
21 import org.eclipse.swt.widgets.Composite;
22
23 import org.eclipse.jface.dialogs.Dialog;
24 import org.eclipse.jface.dialogs.IDialogConstants;
25
26 import org.eclipse.ltk.core.refactoring.Refactoring;
27 import org.eclipse.ltk.core.refactoring.participants.DeleteRefactoring;
28 import org.eclipse.ltk.core.refactoring.participants.RefactoringProcessor;
29 import org.eclipse.ltk.ui.refactoring.RefactoringWizard;
30
31 import org.eclipse.jdt.core.ICompilationUnit;
32 import org.eclipse.jdt.core.IJavaElement;
33 import org.eclipse.jdt.core.IPackageFragment;
34 import org.eclipse.jdt.core.IPackageFragmentRoot;
35 import org.eclipse.jdt.core.JavaModelException;
36
37 import org.eclipse.jdt.internal.corext.refactoring.reorg.JavaDeleteProcessor;
38 import org.eclipse.jdt.internal.corext.refactoring.reorg.ReorgUtils;
39 import org.eclipse.jdt.internal.corext.refactoring.util.JavaElementUtil;
40 import org.eclipse.jdt.internal.corext.util.JavaModelUtil;
41 import org.eclipse.jdt.internal.corext.util.Messages;
42
43 import org.eclipse.jdt.internal.ui.JavaPlugin;
44 import org.eclipse.jdt.internal.ui.refactoring.MessageWizardPage;
45 import org.eclipse.jdt.internal.ui.refactoring.RefactoringMessages;
46
47 public class DeleteWizard extends RefactoringWizard {
48
49 public DeleteWizard(Refactoring refactoring) {
50 super(refactoring, DIALOG_BASED_USER_INTERFACE | YES_NO_BUTTON_STYLE | NO_PREVIEW_PAGE | NO_BACK_BUTTON_ON_STATUS_DIALOG);
51 setDefaultPageTitle(RefactoringMessages.DeleteWizard_1);
52 ((JavaDeleteProcessor)((DeleteRefactoring)getRefactoring()).getProcessor()).setQueries(new ReorgQueries(this));
53 }
54
55
58 protected void addUserInputPages() {
59 addPage(new DeleteInputPage());
60 }
61
62
65 public int getMessageLineWidthInChars() {
66 return 0;
67 }
68
69
72 public boolean needsProgressMonitor() {
73 DeleteRefactoring refactoring= (DeleteRefactoring)getRefactoring();
74 RefactoringProcessor processor= refactoring.getProcessor();
75 if (processor instanceof JavaDeleteProcessor) {
76 return ((JavaDeleteProcessor)processor).needsProgressMonitor();
77 }
78 return super.needsProgressMonitor();
79 }
80
81 private static class DeleteInputPage extends MessageWizardPage {
82 private static final String  PAGE_NAME= "DeleteInputPage"; private static final String DIALOG_SETTINGS_DELETE_SUB_PACKAGES= "deleteSubPackages"; private Button fDeleteSubPackagesCheckBox;
85
86 public DeleteInputPage() {
87 super(PAGE_NAME, true, MessageWizardPage.STYLE_QUESTION);
88 }
89
90 protected String getMessageString() {
91 try {
92 if (1 == numberOfSelectedElements()) {
93 String pattern= createConfirmationStringForOneElement();
94 String name= getNameOfSingleSelectedElement();
95 return Messages.format(pattern, new String [] { name });
96 } else {
97 String pattern= createConfirmationStringForManyElements();
98 return Messages.format(pattern, new String [] { String.valueOf(numberOfSelectedElements())});
99 }
100 } catch (JavaModelException e) {
101 if (JavaModelUtil.isExceptionToBeLogged(e))
103 JavaPlugin.log(e);
104 setPageComplete(false);
105 if (e.isDoesNotExist())
106 return RefactoringMessages.DeleteWizard_12;
107 return RefactoringMessages.DeleteWizard_2;
108 }
109 }
110
111 public void createControl(Composite parent) {
112 super.createControl(parent);
113
114 if (getDeleteProcessor().hasSubPackagesToDelete())
115 addDeleteSubPackagesCheckBox();
116 }
117
118
125 private void addDeleteSubPackagesCheckBox() {
126
127 Composite c= new Composite((Composite) getControl(), SWT.NONE);
128 GridLayout gd= new GridLayout();
129 gd.horizontalSpacing= 10;
130 c.setLayout(gd);
131
132 GridData data= new GridData(GridData.FILL_HORIZONTAL);
133 data.horizontalSpan= 2;
134 c.setLayoutData(data);
135
136 final boolean selection= getRefactoringSettings().getBoolean(DIALOG_SETTINGS_DELETE_SUB_PACKAGES);
137
138 fDeleteSubPackagesCheckBox= new Button(c, SWT.CHECK);
139 fDeleteSubPackagesCheckBox.setText(RefactoringMessages.DeleteWizard_also_delete_sub_packages);
140 fDeleteSubPackagesCheckBox.setSelection(selection);
141
142 fDeleteSubPackagesCheckBox.addSelectionListener(new SelectionAdapter() {
143
144 public void widgetSelected(SelectionEvent event) {
145 getDeleteProcessor().setDeleteSubPackages(fDeleteSubPackagesCheckBox.getSelection());
146 }
147 });
148
149 getDeleteProcessor().setDeleteSubPackages(fDeleteSubPackagesCheckBox.getSelection());
150 }
151
152 private String getNameOfSingleSelectedElement() throws JavaModelException {
153 if (getSingleSelectedResource() != null)
154 return ReorgUtils.getName(getSingleSelectedResource());
155 else
156 return ReorgUtils.getName(getSingleSelectedJavaElement());
157 }
158
159 private IJavaElement getSingleSelectedJavaElement() {
160 IJavaElement[] elements= getSelectedJavaElements();
161 return elements.length == 1 ? elements[0] : null;
162 }
163
164 private IResource getSingleSelectedResource() {
165 IResource[] resources= getSelectedResources();
166 return resources.length == 1 ? resources[0] : null;
167 }
168
169 private int numberOfSelectedElements() {
170 return getSelectedJavaElements().length + getSelectedResources().length;
171 }
172
173
176 protected boolean performFinish() {
177 return super.performFinish() || getDeleteProcessor().wasCanceled(); }
179
180 protected boolean saveSettings() {
181 if (getContainer() instanceof Dialog)
182 return ((Dialog) getContainer()).getReturnCode() == IDialogConstants.OK_ID;
183 return true;
184 }
185
186 public void dispose() {
187 if (fDeleteSubPackagesCheckBox != null && saveSettings())
188 getRefactoringSettings().put(DIALOG_SETTINGS_DELETE_SUB_PACKAGES, fDeleteSubPackagesCheckBox.getSelection());
189 super.dispose();
190 }
191
192 private String createConfirmationStringForOneElement() throws JavaModelException {
193 IJavaElement[] elements= getSelectedJavaElements();
194 if (elements.length == 1) {
195 IJavaElement element= elements[0];
196 if (isDefaultPackageWithLinkedFiles(element))
197 return RefactoringMessages.DeleteWizard_3;
198
199 if (!isLinkedResource(element))
200 return RefactoringMessages.DeleteWizard_4;
201
202 if (isLinkedPackageOrPackageFragmentRoot(element))
203 return RefactoringMessages.DeleteWizard_6;
205
206 return RefactoringMessages.DeleteWizard_5;
207 } else {
208 if (isLinked(getSelectedResources()[0])) return RefactoringMessages.DeleteWizard_7;
210 else
211 return RefactoringMessages.DeleteWizard_8;
212 }
213 }
214
215 private String createConfirmationStringForManyElements() throws JavaModelException {
216 IResource[] resources= getSelectedResources();
217 IJavaElement[] javaElements= getSelectedJavaElements();
218 if (!containsLinkedResources(resources, javaElements))
219 return RefactoringMessages.DeleteWizard_9;
220
221 if (!containsLinkedPackagesOrPackageFragmentRoots(javaElements))
222 return RefactoringMessages.DeleteWizard_10;
223
224 return RefactoringMessages.DeleteWizard_11;
226 }
227
228 private static boolean isLinkedPackageOrPackageFragmentRoot(IJavaElement element) {
229 if ((element instanceof IPackageFragment) || (element instanceof IPackageFragmentRoot))
230 return isLinkedResource(element);
231 else
232 return false;
233 }
234
235 private static boolean containsLinkedPackagesOrPackageFragmentRoots(IJavaElement[] javaElements) {
236 for (int i= 0; i < javaElements.length; i++) {
237 IJavaElement element= javaElements[i];
238 if (isLinkedPackageOrPackageFragmentRoot(element))
239 return true;
240 }
241 return false;
242 }
243
244 private static boolean containsLinkedResources(IResource[] resources, IJavaElement[] javaElements) throws JavaModelException {
245 for (int i= 0; i < javaElements.length; i++) {
246 IJavaElement element= javaElements[i];
247 if (isLinkedResource(element))
248 return true;
249 if (isDefaultPackageWithLinkedFiles(element))
250 return true;
251 }
252 for (int i= 0; i < resources.length; i++) {
253 IResource resource= resources[i];
254 if (isLinked(resource))
255 return true;
256 }
257 return false;
258 }
259
260 private static boolean isDefaultPackageWithLinkedFiles(Object firstElement) throws JavaModelException {
261 if (!JavaElementUtil.isDefaultPackage(firstElement))
262 return false;
263 IPackageFragment defaultPackage= (IPackageFragment)firstElement;
264 ICompilationUnit[] cus= defaultPackage.getCompilationUnits();
265 for (int i= 0; i < cus.length; i++) {
266 if (isLinkedResource(cus[i]))
267 return true;
268 }
269 return false;
270 }
271
272 private static boolean isLinkedResource(IJavaElement element) {
273 return isLinked(ReorgUtils.getResource(element));
274 }
275
276 private static boolean isLinked(IResource resource) {
277 return resource != null && resource.isLinked();
278 }
279
280 private IJavaElement[] getSelectedJavaElements() {
281 return getDeleteProcessor().getJavaElementsToDelete();
282 }
283
284 private IResource[] getSelectedResources() {
285 return getDeleteProcessor().getResourcesToDelete();
286 }
287
288 private JavaDeleteProcessor getDeleteProcessor() {
289 return (JavaDeleteProcessor) ((DeleteRefactoring) getRefactoring()).getProcessor();
290 }
291
292 }
293 }
294 |
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