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1
11 package org.eclipse.ui.internal;
12
13 import java.util.HashSet  ;
14 import java.util.Iterator ;
15 import java.util.Set ;
16
17 import org.eclipse.core.runtime.IAdaptable;
18 import org.eclipse.jface.resource.ImageDescriptor;
19 import org.eclipse.ui.IElementFactory;
20 import org.eclipse.ui.IMemento;
21 import org.eclipse.ui.IPersistableElement;
22 import org.eclipse.ui.IWorkingSetManager;
23 import org.eclipse.ui.PlatformUI;
24 import org.eclipse.ui.internal.registry.WorkingSetDescriptor;
25 import org.eclipse.ui.internal.registry.WorkingSetRegistry;
26 import org.eclipse.ui.internal.util.Util;
27
28
36 public class WorkingSet extends AbstractWorkingSet {
37 private static final String DEFAULT_ID = "org.eclipse.ui.resourceWorkingSetPage";
39 private String editPageId;
40
41
53 public WorkingSet(String name, String uniqueId, IAdaptable[] elements) {
54 super(name, uniqueId);
55 internalSetElements(elements);
56 }
57
58
68 WorkingSet(String name, String label, IMemento memento) {
69 super(name, label);
70 workingSetMemento = memento;
71 }
72
73
81 public boolean equals(Object object) {
82 if (this == object) {
83 return true;
84 }
85 if (object instanceof WorkingSet) {
86 WorkingSet workingSet = (WorkingSet) object;
87 return Util.equals(workingSet.getName(), getName())
88 && Util.equals(workingSet.getElementsArray(),
89 getElementsArray())
90 && Util.equals(workingSet.getId(), getId());
91 }
92 return false;
93 }
94
95
98 public boolean isEditable() {
99 WorkingSetDescriptor descriptor = getDescriptor(null);
100 return descriptor != null && descriptor.isEditable();
101 }
102
103
108 public String getId() {
109 return editPageId;
110 }
111
112
117 public ImageDescriptor getImageDescriptor() {
118 WorkingSetDescriptor descriptor = getDescriptor(DEFAULT_ID);
119 if (descriptor == null) {
120 return null;
121 }
122 return descriptor.getIcon();
123 }
124
125
130 public int hashCode() {
131 int hashCode = getName().hashCode() & getElementsArray().hashCode();
132
133 if (editPageId != null) {
134 hashCode &= editPageId.hashCode();
135 }
136 return hashCode;
137 }
138
139
142 void restoreWorkingSet() {
143 IMemento[] itemMementos = workingSetMemento
144 .getChildren(IWorkbenchConstants.TAG_ITEM);
145 Set items = new HashSet ();
146 for (int i = 0; i < itemMementos.length; i++) {
147 IMemento itemMemento = itemMementos[i];
148 String factoryID = itemMemento
149 .getString(IWorkbenchConstants.TAG_FACTORY_ID);
150
151 if (factoryID == null) {
152 WorkbenchPlugin
153 .log("Unable to restore working set item - no factory ID."); continue;
155 }
156 IElementFactory factory = PlatformUI.getWorkbench()
157 .getElementFactory(factoryID);
158 if (factory == null) {
159 WorkbenchPlugin
160 .log("Unable to restore working set item - cannot instantiate factory: " + factoryID); continue;
162 }
163 IAdaptable item = factory.createElement(itemMemento);
164 if (item == null) {
165 WorkbenchPlugin
166 .log("Unable to restore working set item - cannot instantiate item: " + factoryID); continue;
168 }
169 items.add(item);
170 }
171 internalSetElements((IAdaptable[]) items.toArray(new IAdaptable[items
172 .size()]));
173 }
174
175
182 public void saveState(IMemento memento) {
183 if (workingSetMemento != null) {
184 memento.putMemento(workingSetMemento);
187 } else {
188 memento.putString(IWorkbenchConstants.TAG_NAME, getName());
189 memento.putString(IWorkbenchConstants.TAG_LABEL, getLabel());
190 memento.putString(IWorkbenchConstants.TAG_EDIT_PAGE_ID, editPageId);
191 Iterator iterator = elements.iterator();
192 while (iterator.hasNext()) {
193 IAdaptable adaptable = (IAdaptable) iterator.next();
194 IPersistableElement persistable = (IPersistableElement) Util
195 .getAdapter(adaptable, IPersistableElement.class);
196 if (persistable != null) {
197 IMemento itemMemento = memento
198 .createChild(IWorkbenchConstants.TAG_ITEM);
199
200 itemMemento.putString(IWorkbenchConstants.TAG_FACTORY_ID,
201 persistable.getFactoryId());
202 persistable.saveState(itemMemento);
203 }
204 }
205 }
206 }
207
208
213 public void setElements(IAdaptable[] newElements) {
214 internalSetElements(newElements);
215 fireWorkingSetChanged(
216 IWorkingSetManager.CHANGE_WORKING_SET_CONTENT_CHANGE, null);
217 }
218
219
224 public void setId(String pageId) {
225 editPageId = pageId;
226 }
227
228 public boolean isVisible() {
229 return true;
230 }
231
232 public boolean isSelfUpdating() {
233 WorkingSetDescriptor descriptor = getDescriptor(null);
234 return descriptor != null && descriptor.getUpdaterClassName() != null;
235 }
236
237 public boolean isAggregateWorkingSet() {
238 return false;
239 }
240
241
251 private WorkingSetDescriptor getDescriptor(String defaultId) {
252 WorkingSetRegistry registry = WorkbenchPlugin.getDefault()
253 .getWorkingSetRegistry();
254 String id = getId();
255 if (id == null)
256 id = defaultId;
257 if (id == null)
258 return null;
259
260 return registry.getWorkingSetDescriptor(id);
261 }
262
263
268 public IAdaptable[] adaptElements(IAdaptable[] objects) {
269 IWorkingSetManager manager = getManager();
270 if (manager instanceof WorkingSetManager) {
271 WorkingSetDescriptor descriptor = getDescriptor(null);
272 if (descriptor == null || !descriptor.isElementAdapterClassLoaded())
273 return objects;
274 return ((WorkingSetManager) manager).getElementAdapter(
275 descriptor).adaptElements(this, objects);
276 }
277 return objects;
278 }
279 }
280 |
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