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1
11 package org.eclipse.search2.internal.ui;
12
13 import java.util.ArrayList  ;
14 import java.util.Iterator ;
15 import java.util.List ;
16
17 import org.eclipse.core.runtime.IStatus;
18 import org.eclipse.core.runtime.Status;
19
20 import org.eclipse.swt.SWT;
21 import org.eclipse.swt.events.ModifyEvent;
22 import org.eclipse.swt.events.ModifyListener;
23 import org.eclipse.swt.events.MouseAdapter;
24 import org.eclipse.swt.events.MouseEvent;
25 import org.eclipse.swt.events.SelectionAdapter;
26 import org.eclipse.swt.events.SelectionEvent;
27 import org.eclipse.swt.graphics.Image;
28 import org.eclipse.swt.layout.GridData;
29 import org.eclipse.swt.layout.GridLayout;
30 import org.eclipse.swt.widgets.Button;
31 import org.eclipse.swt.widgets.Composite;
32 import org.eclipse.swt.widgets.Control;
33 import org.eclipse.swt.widgets.Label;
34 import org.eclipse.swt.widgets.Link;
35 import org.eclipse.swt.widgets.Shell;
36 import org.eclipse.swt.widgets.Table;
37 import org.eclipse.swt.widgets.Text;
38
39 import org.eclipse.jface.dialogs.IDialogConstants;
40 import org.eclipse.jface.dialogs.IDialogSettings;
41 import org.eclipse.jface.dialogs.StatusDialog;
42 import org.eclipse.jface.preference.IPreferenceStore;
43 import org.eclipse.jface.resource.ImageDescriptor;
44 import org.eclipse.jface.viewers.ArrayContentProvider;
45 import org.eclipse.jface.viewers.ISelection;
46 import org.eclipse.jface.viewers.ISelectionChangedListener;
47 import org.eclipse.jface.viewers.IStructuredSelection;
48 import org.eclipse.jface.viewers.LabelProvider;
49 import org.eclipse.jface.viewers.SelectionChangedEvent;
50 import org.eclipse.jface.viewers.StructuredSelection;
51 import org.eclipse.jface.viewers.TableViewer;
52 import org.eclipse.jface.window.Window;
53
54 import org.eclipse.ui.dialogs.SelectionDialog;
55
56 import org.eclipse.search.ui.ISearchQuery;
57 import org.eclipse.search.ui.ISearchResult;
58
59 import org.eclipse.search.internal.ui.SearchPlugin;
60 import org.eclipse.search.internal.ui.SearchPreferencePage;
61 import org.eclipse.search.internal.ui.util.SWTUtil;
62
63
66 public class SearchHistorySelectionDialog extends SelectionDialog {
67
68 private static final int REMOVE_ID= IDialogConstants.CLIENT_ID+1;
69 private static final int WIDTH_IN_CHARACTERS= 55;
70
71 private List fInput;
72 private final List fRemovedEntries;
73
74 private TableViewer fViewer;
75 private Button fRemoveButton;
76
77 private boolean fIsOpenInNewView;
78 private Link fLink;
79
80 private static class HistoryConfigurationDialog extends StatusDialog {
81
82 private static final int DEFAULT_ID= 100;
83
84 private int fHistorySize;
85 private Text fHistorySizeTextField;
86 private final List fCurrentList;
87 private final List fCurrentRemoves;
88
89 public HistoryConfigurationDialog(Shell parent, List currentList, List removedEntries) {
90 super(parent);
91 fCurrentList= currentList;
92 fCurrentRemoves= removedEntries;
93 setShellStyle(getShellStyle() | SWT.RESIZE);
94 setTitle(SearchMessages.SearchHistorySelectionDialog_history_size_title);
95 fHistorySize= SearchPreferencePage.getHistoryLimit();
96 setHelpAvailable(false);
97 }
98
99
102 protected Control createDialogArea(Composite container) {
103 Composite ancestor= (Composite) super.createDialogArea(container);
104 GridLayout layout= (GridLayout) ancestor.getLayout();
105 layout.numColumns= 2;
106 ancestor.setLayout(layout);
107
108 Label limitText= new Label(ancestor, SWT.NONE);
109 limitText.setText(SearchMessages.SearchHistorySelectionDialog_history_size_description);
110 limitText.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
111
112 fHistorySizeTextField= new Text(ancestor, SWT.BORDER | SWT.RIGHT);
113 fHistorySizeTextField.setTextLimit(2);
114 fHistorySizeTextField.setText(String.valueOf(fHistorySize));
115 fHistorySizeTextField.addModifyListener(new ModifyListener() {
116 public void modifyText(ModifyEvent e) {
117 validateDialogState();
118 }
119 });
120
121 GridData gridData= new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1);
122 gridData.widthHint= convertWidthInCharsToPixels(6);
123 fHistorySizeTextField.setLayoutData(gridData);
124 fHistorySizeTextField.setSelection(0, fHistorySizeTextField.getText().length());
125 applyDialogFont(ancestor);
126
127 return ancestor;
128 }
129
130
133 protected void createButtonsForButtonBar(Composite parent) {
134 createButton(parent, DEFAULT_ID, SearchMessages.SearchHistorySelectionDialog_restore_default_button, false);
135 super.createButtonsForButtonBar(parent);
136 }
137
138
141 protected void buttonPressed(int buttonId) {
142 if (buttonId == DEFAULT_ID) {
143 IPreferenceStore store= SearchPlugin.getDefault().getPreferenceStore();
144 fHistorySizeTextField.setText(store.getDefaultString(SearchPreferencePage.LIMIT_HISTORY));
145 validateDialogState();
146 }
147 super.buttonPressed(buttonId);
148 }
149
150
151 protected final boolean validateDialogState() {
152 IStatus status= null;
153 try {
154 String historySize= fHistorySizeTextField.getText();
155 int size= Integer.parseInt(historySize);
156 if (size < 1) {
157 status= new Status(IStatus.ERROR, SearchPlugin.getID(), IStatus.ERROR, SearchMessages.SearchHistorySelectionDialog_history_size_error, null);
158 } else {
159 fHistorySize= size;
160 }
161 } catch (NumberFormatException e) {
162 status= new Status(IStatus.ERROR, SearchPlugin.getID(), IStatus.ERROR, SearchMessages.SearchHistorySelectionDialog_history_size_error, null);
163 }
164 if (status == null) {
165 status= new Status(IStatus.OK, SearchPlugin.getID(), IStatus.OK, new String (), null);
166 }
167 updateStatus(status);
168 return !status.matches(IStatus.ERROR);
169 }
170
171
174 protected void okPressed() {
175 IPreferenceStore store= SearchPlugin.getDefault().getPreferenceStore();
176 store.setValue(SearchPreferencePage.LIMIT_HISTORY, fHistorySize);
177
178 for (int i= fCurrentList.size() - 1; i >= fHistorySize; i--) {
180 fCurrentRemoves.add(fCurrentList.get(i));
181 fCurrentList.remove(i);
182 }
183 super.okPressed();
184 }
185
186 }
187
188 private static final class SearchesLabelProvider extends LabelProvider {
189
190 private ArrayList fImages= new ArrayList ();
191
192 public String getText(Object element) {
193 return ((ISearchResult)element).getLabel();
194 }
195
196 public Image getImage(Object element) {
197
198 ImageDescriptor imageDescriptor= ((ISearchResult)element).getImageDescriptor();
199 if (imageDescriptor == null)
200 return null;
201
202 Image image= imageDescriptor.createImage();
203 fImages.add(image);
204
205 return image;
206 }
207
208 public void dispose() {
209 Iterator iter= fImages.iterator();
210 while (iter.hasNext())
211 ((Image)iter.next()).dispose();
212
213 fImages= null;
214 }
215 }
216
217 public SearchHistorySelectionDialog(Shell parent, List input) {
218 super(parent);
219 setShellStyle(getShellStyle() | SWT.RESIZE);
220 setTitle(SearchMessages.SearchesDialog_title);
221 setMessage(SearchMessages.SearchesDialog_message);
222 fInput= input;
223 fRemovedEntries= new ArrayList ();
224 setHelpAvailable(false);
225 }
226
227
230 public boolean isOpenInNewView() {
231 return fIsOpenInNewView;
232 }
233
234
237 protected IDialogSettings getDialogBoundsSettings() {
238 return SearchPlugin.getDefault().getDialogSettingsSection("DialogBounds_SearchHistorySelectionDialog"); }
240
241
244 protected int getDialogBoundsStrategy() {
245 return DIALOG_PERSISTSIZE;
246 }
247
248
249
252 protected Label createMessageArea(Composite composite) {
253 Composite parent= new Composite(composite, SWT.NONE);
254 GridLayout layout= new GridLayout();
255 layout.numColumns= 2;
256 layout.marginHeight= 0;
257 layout.marginWidth= 0;
258 parent.setLayout(layout);
259 parent.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
260
261 Label label = new Label(parent,SWT.WRAP);
262 label.setText(getMessage());
263 GridData gd= new GridData(GridData.FILL_HORIZONTAL);
264 label.setLayoutData(gd);
266
267
268 applyDialogFont(label);
269 return label;
270 }
271
272
273
274
277 public void create() {
278 super.create();
279
280 List initialSelection= getInitialElementSelections();
281 if (initialSelection != null)
282 fViewer.setSelection(new StructuredSelection(initialSelection));
283
284 validateDialogState();
285 }
286
287
290 protected Control createDialogArea(Composite container) {
291 Composite ancestor= (Composite) super.createDialogArea(container);
292
293 createMessageArea(ancestor);
294
295 Composite parent= new Composite(ancestor, SWT.NONE);
296
297 GridLayout layout= new GridLayout();
298 layout.numColumns= 2;
299 layout.marginHeight= 0;
300 layout.marginWidth= 0;
301 parent.setLayout(layout);
302 parent.setLayoutData(new GridData(GridData.FILL_BOTH));
303
304 fViewer= new TableViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER | SWT.FULL_SELECTION);
305 fViewer.setContentProvider(new ArrayContentProvider());
306
307 final Table table= fViewer.getTable();
308 table.addMouseListener(new MouseAdapter() {
309 public void mouseDoubleClick(MouseEvent e) {
310 okPressed();
311 }
312 });
313 fViewer.setLabelProvider(new SearchesLabelProvider());
314 GridData gd= new GridData(GridData.FILL_BOTH);
315 gd.heightHint= convertHeightInCharsToPixels(15);
316 gd.widthHint= convertWidthInCharsToPixels(WIDTH_IN_CHARACTERS);
317 table.setLayoutData(gd);
318
319
320 fRemoveButton= new Button(parent, SWT.PUSH);
321 fRemoveButton.setText(SearchMessages.SearchesDialog_remove_label);
322 fRemoveButton.addSelectionListener(new SelectionAdapter() {
323 public void widgetSelected(SelectionEvent event) {
324 buttonPressed(REMOVE_ID);
325 }
326 });
327 fRemoveButton.setLayoutData(new GridData(GridData.BEGINNING, GridData.BEGINNING, false, false));
328 SWTUtil.setButtonDimensionHint(fRemoveButton);
329
330 fViewer.addSelectionChangedListener(new ISelectionChangedListener() {
331 public void selectionChanged(SelectionChangedEvent event) {
332 validateDialogState();
333 }
334 });
335
336 fLink= new Link(parent, SWT.NONE);
337 configureHistoryLink();
338 fLink.addSelectionListener(new SelectionAdapter() {
339 public void widgetSelected(SelectionEvent e) {
340 HistoryConfigurationDialog dialog= new HistoryConfigurationDialog(getShell(), fInput, fRemovedEntries);
341 if (dialog.open() == Window.OK) {
342 fViewer.refresh();
343 configureHistoryLink();
344 }
345 }
346 });
347 fLink.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 2, 1));
348
349
350 applyDialogFont(ancestor);
351
352 fViewer.setInput(fInput);
354 fViewer.getTable().setFocus();
355 return ancestor;
356 }
357
358 private void configureHistoryLink() {
359 int historyLimit= SearchPreferencePage.getHistoryLimit();
360 fLink.setText(Messages.format(SearchMessages.SearchHistorySelectionDialog_configure_link_label, new Integer (historyLimit)));
361 }
362
363 protected final void validateDialogState() {
364 IStructuredSelection sel= (IStructuredSelection) fViewer.getSelection();
365 int elementsSelected= sel.toList().size();
366
367 fRemoveButton.setEnabled(elementsSelected > 0);
368 Button okButton= getOkButton();
369 if (okButton != null) {
370 okButton.setEnabled(elementsSelected == 1);
371 }
372 Button openInNewButton= getButton(IDialogConstants.OPEN_ID);
373 if (openInNewButton != null) {
374 openInNewButton.setEnabled(elementsSelected == 1);
375 }
376 }
377
378
381 protected void createButtonsForButtonBar(Composite parent) {
382 createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OPEN_LABEL, true);
383 createButton(parent, IDialogConstants.OPEN_ID, SearchMessages.SearchHistorySelectionDialog_open_in_new_button, false);
384 createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false);
385 }
386
387
388 protected void buttonPressed(int buttonId) {
389 if (buttonId == REMOVE_ID) {
390 IStructuredSelection selection= (IStructuredSelection) fViewer.getSelection();
391 Iterator searchResults= selection.iterator();
392 while (searchResults.hasNext()) {
393 Object curr= searchResults.next();
394 fRemovedEntries.add(curr);
395 fInput.remove(curr);
396 fViewer.remove(curr);
397 }
398 if (fViewer.getSelection().isEmpty() && !fInput.isEmpty()) {
399 fViewer.setSelection(new StructuredSelection(fInput.get(0)));
400 }
401 return;
402 }
403 if (buttonId == IDialogConstants.OPEN_ID) {
404 fIsOpenInNewView= true;
405 buttonId= IDialogConstants.OK_ID;
406 }
407 super.buttonPressed(buttonId);
408 }
409
410
413 protected void okPressed() {
414 ISelection selection= fViewer.getSelection();
416 if (selection instanceof IStructuredSelection)
417 setResult(((IStructuredSelection) fViewer.getSelection()).toList());
418
419 for (Iterator iter= fRemovedEntries.iterator(); iter.hasNext();) {
421 ISearchResult result= (ISearchResult) iter.next();
422 ISearchQuery query= result.getQuery();
423 if (query != null) { InternalSearchUI.getInstance().removeQuery(query);
425 }
426 }
427 super.okPressed();
428 }
429 }
430
431
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