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1
11 package org.eclipse.jdt.internal.ui.dialogs;
12
13 import java.lang.reflect.InvocationTargetException  ;
14 import java.util.ArrayList ;
15 import java.util.HashSet ;
16
17 import org.eclipse.core.runtime.CoreException;
18 import org.eclipse.core.runtime.IProgressMonitor;
19 import org.eclipse.core.runtime.NullProgressMonitor;
20 import org.eclipse.core.runtime.OperationCanceledException;
21 import org.eclipse.core.runtime.SubProgressMonitor;
22
23 import org.eclipse.jdt.core.IJavaElement;
24 import org.eclipse.jdt.core.IPackageFragment;
25 import org.eclipse.jdt.core.IPackageFragmentRoot;
26 import org.eclipse.jdt.core.JavaModelException;
27 import org.eclipse.jdt.core.search.IJavaSearchConstants;
28 import org.eclipse.jdt.core.search.IJavaSearchScope;
29 import org.eclipse.jdt.core.search.SearchEngine;
30 import org.eclipse.jdt.core.search.SearchMatch;
31 import org.eclipse.jdt.core.search.SearchPattern;
32 import org.eclipse.jdt.core.search.SearchRequestor;
33
34 import org.eclipse.swt.graphics.Point;
35 import org.eclipse.swt.graphics.Rectangle;
36 import org.eclipse.swt.widgets.Composite;
37 import org.eclipse.swt.widgets.Control;
38 import org.eclipse.swt.widgets.Shell;
39
40 import org.eclipse.jface.dialogs.IDialogSettings;
41 import org.eclipse.jface.dialogs.MessageDialog;
42 import org.eclipse.jface.operation.IRunnableContext;
43 import org.eclipse.jface.operation.IRunnableWithProgress;
44 import org.eclipse.jface.viewers.ILabelProvider;
45
46 import org.eclipse.ui.dialogs.ElementListSelectionDialog;
47 import org.eclipse.ui.PlatformUI;
48
49 import org.eclipse.jdt.internal.corext.util.SearchUtils;
50
51 import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
52 import org.eclipse.jdt.internal.ui.JavaPlugin;
53 import org.eclipse.jdt.internal.ui.JavaUIMessages;
54 import org.eclipse.jdt.internal.ui.util.ExceptionHandler;
55
56 import org.eclipse.jdt.ui.JavaElementLabelProvider;
57
58
61 public class PackageSelectionDialog extends ElementListSelectionDialog {
62
63 public static final int F_REMOVE_DUPLICATES= 1;
64 public static final int F_SHOW_PARENTS= 2;
65 public static final int F_HIDE_DEFAULT_PACKAGE= 4;
66 public static final int F_HIDE_EMPTY_INNER= 8;
67
68
69
70 private Point fLocation;
71
72 private Point fSize;
73
74 private IRunnableContext fContext;
75 private IJavaSearchScope fScope;
76 private int fFlags;
77
78
86 public PackageSelectionDialog(Shell parent, IRunnableContext context, int flags, IJavaSearchScope scope) {
87 super(parent, createLabelProvider(flags));
88 fFlags= flags;
89 fScope= scope;
90 fContext= context;
91 }
92
93 private static ILabelProvider createLabelProvider(int dialogFlags) {
94 int flags= JavaElementLabelProvider.SHOW_DEFAULT;
95 if ((dialogFlags & F_REMOVE_DUPLICATES) == 0) {
96 flags= flags | JavaElementLabelProvider.SHOW_ROOT;
97 }
98 return new JavaElementLabelProvider(flags);
99 }
100
101
102
105 public int open() {
106 final ArrayList packageList= new ArrayList ();
107
108 IRunnableWithProgress runnable= new IRunnableWithProgress() {
109 public void run(IProgressMonitor monitor) throws InvocationTargetException , InterruptedException {
110 if (monitor == null) {
111 monitor= new NullProgressMonitor();
112 }
113 boolean hideEmpty= (fFlags & F_HIDE_EMPTY_INNER) != 0;
114 monitor.beginTask(JavaUIMessages.PackageSelectionDialog_progress_search, hideEmpty ? 2 : 1);
115 try {
116 SearchRequestor requestor= new SearchRequestor() {
117 private HashSet fSet= new HashSet ();
118 private final boolean fAddDefault= (fFlags & F_HIDE_DEFAULT_PACKAGE) == 0;
119 private final boolean fDuplicates= (fFlags & F_REMOVE_DUPLICATES) == 0;
120 private final boolean fIncludeParents= (fFlags & F_SHOW_PARENTS) != 0;
121
122 public void acceptSearchMatch(SearchMatch match) throws CoreException {
123 IJavaElement enclosingElement= (IJavaElement) match.getElement();
124 String name= enclosingElement.getElementName();
125 if (fAddDefault || name.length() > 0) {
126 if (fDuplicates || fSet.add(name)) {
127 packageList.add(enclosingElement);
128 if (fIncludeParents) {
129 addParentPackages(enclosingElement, name);
130 }
131 }
132 }
133 }
134
135 private void addParentPackages(IJavaElement enclosingElement, String name) {
136 IPackageFragmentRoot root= (IPackageFragmentRoot) enclosingElement.getParent();
137 int idx= name.lastIndexOf('.');
138 while (idx != -1) {
139 name= name.substring(0, idx);
140 if (fDuplicates || fSet.add(name)) {
141 packageList.add(root.getPackageFragment(name));
142 }
143 idx= name.lastIndexOf('.');
144 }
145 }
146 };
147 SearchPattern pattern= SearchPattern.createPattern("*", IJavaSearchConstants.PACKAGE, IJavaSearchConstants.DECLARATIONS,
149 SearchPattern.R_PATTERN_MATCH | SearchPattern.R_CASE_SENSITIVE);
150 new SearchEngine().search(pattern, SearchUtils.getDefaultSearchParticipants(), fScope, requestor, new SubProgressMonitor(monitor, 1));
151
152 if (monitor.isCanceled()) {
153 throw new InterruptedException ();
154 }
155
156 if (hideEmpty) {
157 removeEmptyPackages(new SubProgressMonitor(monitor, 1));
158 }
159 } catch (CoreException e) {
160 throw new InvocationTargetException (e);
161 } catch (OperationCanceledException e) {
162 throw new InterruptedException ();
163 } finally {
164 monitor.done();
165 }
166 }
167
168 private void removeEmptyPackages(IProgressMonitor monitor) throws JavaModelException, InterruptedException {
169 monitor.beginTask(JavaUIMessages.PackageSelectionDialog_progress_findEmpty, packageList.size());
170 try {
171 ArrayList res= new ArrayList (packageList.size());
172 for (int i= 0; i < packageList.size(); i++) {
173 IPackageFragment pkg= (IPackageFragment) packageList.get(i);
174 if (pkg.hasChildren() || !pkg.hasSubpackages()) {
175 res.add(pkg);
176 }
177 monitor.worked(1);
178 if (monitor.isCanceled()) {
179 throw new InterruptedException ();
180 }
181 }
182 packageList.clear();
183 packageList.addAll(res);
184 } finally{
185 monitor.done();
186 }
187 }
188 };
189
190 try {
191 fContext.run(true, true, runnable);
192 } catch (InvocationTargetException e) {
193 ExceptionHandler.handle(e, JavaUIMessages.PackageSelectionDialog_error_title, JavaUIMessages.PackageSelectionDialog_error3Message);
194 return CANCEL;
195 } catch (InterruptedException e) {
196 return CANCEL;
198 }
199
200 if (packageList.isEmpty()) {
201 String title= JavaUIMessages.PackageSelectionDialog_nopackages_title;
202 String message= JavaUIMessages.PackageSelectionDialog_nopackages_message;
203 MessageDialog.openInformation(getShell(), title, message);
204 return CANCEL;
205 }
206
207 setElements(packageList.toArray());
208
209 return super.open();
210 }
211
212
213
216 protected void configureShell(Shell newShell) {
217 super.configureShell(newShell);
218 PlatformUI.getWorkbench().getHelpSystem().setHelp(newShell, IJavaHelpContextIds.OPEN_PACKAGE_DIALOG);
219 }
220
221
224 public boolean close() {
225 writeSettings();
226 return super.close();
227 }
228
229
232 protected Control createContents(Composite parent) {
233 Control control= super.createContents(parent);
234 readSettings();
235 return control;
236 }
237
238
241 protected Point getInitialSize() {
242 Point result= super.getInitialSize();
243 if (fSize != null) {
244 result.x= Math.max(result.x, fSize.x);
245 result.y= Math.max(result.y, fSize.y);
246 Rectangle display= getShell().getDisplay().getClientArea();
247 result.x= Math.min(result.x, display.width);
248 result.y= Math.min(result.y, display.height);
249 }
250 return result;
251 }
252
253
256 protected Point getInitialLocation(Point initialSize) {
257 Point result= super.getInitialLocation(initialSize);
258 if (fLocation != null) {
259 result.x= fLocation.x;
260 result.y= fLocation.y;
261 Rectangle display= getShell().getDisplay().getClientArea();
262 int xe= result.x + initialSize.x;
263 if (xe > display.width) {
264 result.x-= xe - display.width;
265 }
266 int ye= result.y + initialSize.y;
267 if (ye > display.height) {
268 result.y-= ye - display.height;
269 }
270 }
271 return result;
272 }
273
274
275
276
280 private void readSettings() {
281 IDialogSettings s= getDialogSettings();
282 try {
283 int x= s.getInt("x"); int y= s.getInt("y"); fLocation= new Point(x, y);
286 int width= s.getInt("width"); int height= s.getInt("height"); fSize= new Point(width, height);
289
290 } catch (NumberFormatException e) {
291 fLocation= null;
292 fSize= null;
293 }
294 }
295
296
299 private void writeSettings() {
300 IDialogSettings s= getDialogSettings();
301
302 Point location= getShell().getLocation();
303 s.put("x", location.x); s.put("y", location.y);
306 Point size= getShell().getSize();
307 s.put("width", size.x); s.put("height", size.y); }
310
311
317 private IDialogSettings getDialogSettings() {
318 IDialogSettings settings= JavaPlugin.getDefault().getDialogSettings();
319 String sectionName= getClass().getName();
320 IDialogSettings subSettings= settings.getSection(sectionName);
321 if (subSettings == null)
322 subSettings= settings.addNewSection(sectionName);
323 return subSettings;
324 }
325
326
327
328 }
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