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1
11 package org.eclipse.help.ui.internal.views;
12
13 import java.util.ArrayList  ;
14
15 import org.eclipse.help.ui.internal.*;
16 import org.eclipse.jface.dialogs.IDialogConstants;
17 import org.eclipse.jface.preference.*;
18 import org.eclipse.jface.viewers.*;
19 import org.eclipse.osgi.util.NLS;
20 import org.eclipse.swt.SWT;
21 import org.eclipse.swt.graphics.Image;
22 import org.eclipse.swt.layout.*;
23 import org.eclipse.swt.widgets.*;
24 import org.eclipse.ui.dialogs.ListDialog;
25
26
29 public class ScopeSetDialog extends ListDialog {
30 private ScopeSetManager manager;
31 private EngineDescriptorManager descManager;
32 private static final int NEW_ID = IDialogConstants.CLIENT_ID + 1;
33 private static final int EDIT_ID = IDialogConstants.CLIENT_ID + 2;
34 private static final int RENAME_ID = IDialogConstants.CLIENT_ID +3;
35 private static final int REMOVE_ID = IDialogConstants.CLIENT_ID + 4;
36 private Button editButton;
37 private Button renameButton;
38 private Button removeButton;
39 private ArrayList sets;
40 private ArrayList operations;
41
42 private abstract class PendingOperation {
43 ScopeSet set;
44 public PendingOperation(ScopeSet set) {
45 this.set = set;
46 }
47 public abstract void commit();
48 public abstract void cancel();
49 }
50
51 private class AddOperation extends PendingOperation {
52 public AddOperation(ScopeSet set) {
53 super(set);
54 }
55 public void commit() {
56 manager.add(set);
57 }
58 public void cancel() {
59 set.dispose();
60 }
61 }
62
63 private class RenameOperation extends PendingOperation {
64 private String newName;
65 public RenameOperation(ScopeSet set, String newName) {
66 super(set);
67 this.newName = newName;
68 }
69 public void commit() {
70 this.set.setName(newName);
71 }
72 public void cancel() {
73 }
74 }
75
76
87
88 private class RemoveOperation extends PendingOperation {
89 public RemoveOperation(ScopeSet set) {
90 super(set);
91 }
92 public void commit() {
93 manager.remove(set);
94 }
95 public void cancel() {
96 }
97 }
98
99 private class ScopeContentProvider implements IStructuredContentProvider {
100 public Object [] getElements(Object inputElement) {
101 return sets.toArray();
102 }
103
104
107 public void dispose() {
108 }
109
110
113 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
114 }
115 }
116
117 private class ScopeLabelProvider extends LabelProvider {
118 public String getText(Object obj) {
119 String name = findNewName((ScopeSet)obj);
120 if (name!=null)
121 return name;
122 return ((ScopeSet)obj).getName();
123 }
124 private String findNewName(ScopeSet set) {
125 PendingOperation op = findOperation(set, RenameOperation.class);
126 if (op!=null) {
127 RenameOperation rop = (RenameOperation)op;
128 return rop.newName;
129 }
130 return null;
131 }
132 public Image getImage(Object obj) {
133 return HelpUIResources.getImage(IHelpUIConstants.IMAGE_SCOPE_SET);
134 }
135 }
136
137
140 public ScopeSetDialog(Shell parent, ScopeSetManager manager, EngineDescriptorManager descManager) {
141 super(parent);
142 this.manager = manager;
143 this.descManager = descManager;
144 this.sets = extractSets(manager.getScopeSets(false));
145 setContentProvider(new ScopeContentProvider());
146 setLabelProvider(new ScopeLabelProvider());
147 setInitialSelections(new Object [] { manager.getActiveSet() });
148 }
149
150 private ArrayList extractSets(ScopeSet[] array) {
151 ArrayList list = new ArrayList ();
152 for (int i=0; i<array.length; i++) {
153 list.add(array[i]);
154 }
155 return list;
156 }
157
158 protected Control createDialogArea(Composite container) {
159 Composite listContainer = (Composite)super.createDialogArea(container);
160 createEditingButtons(listContainer);
161 getTableViewer().addSelectionChangedListener(new ISelectionChangedListener() {
162 public void selectionChanged(SelectionChangedEvent event) {
163 updateButtons();
164 }
165 });
166 return listContainer;
167 }
168
169 private void createEditingButtons(Composite composite) {
170 Composite buttonComposite= new Composite(composite, SWT.RIGHT);
171 GridLayout layout= new GridLayout();
172 layout.numColumns= 2;
173 buttonComposite.setLayout(layout);
174 GridData data= new GridData(GridData.HORIZONTAL_ALIGN_END | GridData.GRAB_HORIZONTAL);
175 data.grabExcessHorizontalSpace= true;
176 composite.setData(data);
177 createButton(buttonComposite, NEW_ID, Messages.ScopeSetDialog_new, false);
178 renameButton = createButton(buttonComposite, RENAME_ID, Messages.ScopeSetDialog_rename, false);
179 editButton = createButton(buttonComposite, EDIT_ID, Messages.ScopeSetDialog_edit, false);
180 removeButton = createButton(buttonComposite, REMOVE_ID, Messages.ScopeSetDialog_remove, false);
181 updateButtons();
182 }
183
184 public ScopeSet getActiveSet() {
185 Object [] result = getResult();
186 if (result!=null && result.length>0)
187 return (ScopeSet)result[0];
188 return null;
189 }
190 protected void okPressed() {
191 if (operations!=null) {
192 for (int i=0; i<operations.size(); i++) {
193 PendingOperation operation = (PendingOperation)operations.get(i);
194 operation.commit();
195 }
196 operations = null;
197 }
198 super.okPressed();
199 }
200
201 protected void cancelPressed() {
202 if (operations!=null) {
203 for (int i=0; i<operations.size(); i++) {
204 PendingOperation operation = (PendingOperation)operations.get(i);
205 operation.cancel();
206 }
207 operations = null;
208 }
209 super.cancelPressed();
210 }
211
212 protected void buttonPressed(int buttonId) {
213 switch (buttonId) {
214 case NEW_ID:
215 doNew();
216 break;
217 case EDIT_ID:
218 doEdit();
219 break;
220 case RENAME_ID:
221 doRename();
222 break;
223 case REMOVE_ID:
224 doRemove();
225 break;
226 }
227 super.buttonPressed(buttonId);
228 }
229
230 private void doNew() {
231 IStructuredSelection ssel = (IStructuredSelection)getTableViewer().getSelection();
232 ScopeSet set = (ScopeSet)ssel.getFirstElement();
233 ScopeSet newSet = new ScopeSet(set);
234 String name = getNewName(newSet.getName(), false);
235 if (name!=null) {
236 newSet.setName(name);
237 scheduleOperation(new AddOperation(newSet));
238 sets.add(newSet);
239 getTableViewer().refresh();
240 updateButtons();
241 }
242 }
243
244 private void doEdit() {
245 IStructuredSelection ssel = (IStructuredSelection)getTableViewer().getSelection();
246 ScopeSet set = (ScopeSet)ssel.getFirstElement();
247 if (set!=null) {
248 PreferenceManager manager = new ScopePreferenceManager(descManager, set);
249 PreferenceDialog dialog = new ScopePreferenceDialog(getShell(), manager, descManager, set.isEditable());
250 dialog.setPreferenceStore(set.getPreferenceStore());
251 dialog.create();
252 dialog.getShell().setText(NLS.bind(Messages.ScopePreferenceDialog_wtitle, set.getName()));
253 dialog.open();
254 }
255 }
256
257 private void doRename() {
258 IStructuredSelection ssel = (IStructuredSelection)getTableViewer().getSelection();
259 ScopeSet set = (ScopeSet)ssel.getFirstElement();
260 if (set!=null) {
261 RenameOperation rop = (RenameOperation)findOperation(set, RenameOperation.class);
262 String oldName = rop!=null?rop.newName:set.getName();
263 String newName = getNewName(oldName, true);
264 if (newName!=null) {
265 if (rop!=null)
266 rop.newName = newName;
267 else
268 scheduleOperation(new RenameOperation(set, newName));
269 getTableViewer().update(set, null);
270 updateButtons();
271 }
272 }
273 }
274
275 private String getNewName(String oldName, boolean isRename) {
276 RenameDialog dialog = new RenameDialog(getShell(), oldName);
277 for (int i=0; i<sets.size(); i++) {
278 ScopeSet set = (ScopeSet)sets.get(i);
279 dialog.addOldName(set.getName());
280 }
281 dialog.create();
282 String dialogTitle = isRename ?
283 Messages.RenameDialog_wtitle : Messages.NewDialog_wtitle;
284 dialog.getShell().setText(dialogTitle);
285 if (dialog.open()==RenameDialog.OK) {
286 return dialog.getNewName();
287 }
288 return null;
289 }
290
291 private void doRemove() {
292 IStructuredSelection ssel = (IStructuredSelection)getTableViewer().getSelection();
293 ScopeSet set = (ScopeSet)ssel.getFirstElement();
294 if (set!=null) {
295 scheduleOperation(new RemoveOperation(set));
296 sets.remove(set);
297 getTableViewer().refresh();
298 updateButtons();
299 }
300 }
301
302 private void scheduleOperation(PendingOperation op) {
303 if (operations==null)
304 operations = new ArrayList ();
305 operations.add(op);
306 }
307
308 private void updateButtons() {
309 IStructuredSelection ssel = (IStructuredSelection)getTableViewer().getSelection();
310 editButton.setEnabled(ssel.isEmpty()==false);
311 ScopeSet set = (ScopeSet)ssel.getFirstElement();
312 boolean editableSet = set!=null && set.isEditable() && !set.isImplicit();
313 removeButton.setEnabled(editableSet);
314 renameButton.setEnabled(editableSet);
315 Button okButton = getOkButton();
316 if (okButton!=null)
317 okButton.setEnabled(set!=null);
318 }
319
320 private PendingOperation findOperation(ScopeSet set, Class type) {
321 if (operations!=null) {
322 for (int i=0; i<operations.size(); i++) {
323 PendingOperation op = (PendingOperation)operations.get(i);
324 if (op.getClass().equals(type)) {
325 if (op.set.equals(set))
326 return op;
327 }
328 }
329 }
330 return null;
331 }
332 }
333 |
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