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1
11
12 package org.eclipse.ui.internal;
13
14 import java.util.ArrayList  ;
15 import java.util.HashMap ;
16 import java.util.Iterator ;
17 import java.util.Map ;
18
19 import org.eclipse.jface.action.ContributionItem;
20 import org.eclipse.jface.action.IAction;
21 import org.eclipse.jface.action.IContributionItem;
22 import org.eclipse.jface.action.IMenuListener;
23 import org.eclipse.jface.action.IMenuManager;
24 import org.eclipse.jface.action.MenuManager;
25 import org.eclipse.jface.viewers.ISelection;
26 import org.eclipse.jface.viewers.ISelectionProvider;
27 import org.eclipse.swt.SWT;
28 import org.eclipse.swt.widgets.Menu;
29 import org.eclipse.swt.widgets.MenuItem;
30 import org.eclipse.ui.IEditorPart;
31 import org.eclipse.ui.IWorkbenchPage;
32 import org.eclipse.ui.IWorkbenchPart;
33 import org.eclipse.ui.IWorkbenchWindow;
34 import org.eclipse.ui.internal.util.Util;
35 import org.eclipse.ui.part.IShowInSource;
36 import org.eclipse.ui.part.IShowInTargetList;
37 import org.eclipse.ui.part.ShowInContext;
38 import org.eclipse.ui.views.IViewDescriptor;
39 import org.eclipse.ui.views.IViewRegistry;
40
41
46 public class ShowInMenu extends ContributionItem {
47
48 private static final String NO_TARGETS_MSG = WorkbenchMessages.Workbench_showInNoTargets;
49
50 private IWorkbenchWindow window;
51
52 private Map actions = new HashMap (21);
53
54 private boolean dirty = true;
55
56 private IMenuListener menuListener = new IMenuListener() {
57 public void menuAboutToShow(IMenuManager manager) {
58 manager.markDirty();
59 dirty = true;
60 }
61 };
62
63
68 public ShowInMenu(IWorkbenchWindow window, String id) {
69 super(id);
70 this.window = window;
71 }
72
73 protected IWorkbenchWindow getWindow() {
74 return window;
75 }
76
77 public boolean isDirty() {
78 return dirty;
79 }
80
81
84 public boolean isDynamic() {
85 return true;
86 }
87
88 public void fill(Menu menu, int index) {
89 if (getParent() instanceof MenuManager) {
90 ((MenuManager) getParent()).addMenuListener(menuListener);
91 }
92
93 if (!dirty) {
94 return;
95 }
96
97 MenuManager manager = new MenuManager();
98 fillMenu(manager);
99 IContributionItem[] items = manager.getItems();
100 if (items.length == 0) {
101 MenuItem item = new MenuItem(menu, SWT.NONE, index++);
102 item.setText(NO_TARGETS_MSG);
103 item.setEnabled(false);
104 } else {
105 for (int i = 0; i < items.length; i++) {
106 items[i].fill(menu, index++);
107 }
108 }
109 dirty = false;
110 }
111
112
115 private void fillMenu(IMenuManager innerMgr) {
116 innerMgr.removeAll();
118
119 IWorkbenchPart sourcePart = getSourcePart();
120 if (sourcePart == null) {
121 return;
122 }
123 ShowInContext context = getContext(sourcePart);
124 if (context == null) {
125 return;
126 }
127 if (context.getInput() == null
128 && (context.getSelection() == null || context.getSelection()
129 .isEmpty())) {
130 return;
131 }
132
133 IViewDescriptor[] viewDescs = getViewDescriptors(sourcePart);
134 if (viewDescs.length == 0) {
135 return;
136 }
137
138 for (int i = 0; i < viewDescs.length; ++i) {
139 IAction action = getAction(viewDescs[i]);
140 if (action != null) {
141 innerMgr.add(action);
142 }
143 }
144 }
145
146
149 private IAction getAction(IViewDescriptor desc) {
150 IAction action = (IAction) actions.get(desc.getId());
153 if (action == null) {
154 if (desc != null) {
155 action = new ShowInAction(window, desc);
156 actions.put(desc.getId(), action);
157 }
158 }
159 return action;
160 }
161
162
166 private ArrayList getShowInPartIds(IWorkbenchPart sourcePart) {
167 ArrayList targetIds = new ArrayList ();
168 WorkbenchPage page = (WorkbenchPage) getWindow().getActivePage();
169 if (page != null) {
170 targetIds.addAll(page.getShowInPartIds());
171 }
172 IShowInTargetList targetList = getShowInTargetList(sourcePart);
173 if (targetList != null) {
174 String [] partIds = targetList.getShowInTargetIds();
175 if (partIds != null) {
176 for (int i = 0; i < partIds.length; ++i) {
177 if (!targetIds.contains(partIds[i])) {
178 targetIds.add(partIds[i]);
179 }
180 }
181 }
182 }
183 page.sortShowInPartIds(targetIds);
184 return targetIds;
185 }
186
187
196 private IWorkbenchPart getSourcePart() {
197 IWorkbenchPage page = getWindow().getActivePage();
198 if (page != null) {
199 return page.getActivePart();
200 }
201 return null;
202 }
203
204
211 private IShowInSource getShowInSource(IWorkbenchPart sourcePart) {
212 return (IShowInSource)Util.getAdapter(sourcePart, IShowInSource.class);
213 }
214
215
222 private IShowInTargetList getShowInTargetList(IWorkbenchPart sourcePart) {
223 return (IShowInTargetList)Util.getAdapter(sourcePart, IShowInTargetList.class);
224 }
225
226
238 private ShowInContext getContext(IWorkbenchPart sourcePart) {
239 IShowInSource source = getShowInSource(sourcePart);
240 if (source != null) {
241 ShowInContext context = source.getShowInContext();
242 if (context != null) {
243 return context;
244 }
245 } else if (sourcePart instanceof IEditorPart) {
246 Object input = ((IEditorPart) sourcePart).getEditorInput();
247 ISelectionProvider sp = sourcePart.getSite().getSelectionProvider();
248 ISelection sel = sp == null ? null : sp.getSelection();
249 return new ShowInContext(input, sel);
250 }
251 return null;
252 }
253
254
257 private IViewDescriptor[] getViewDescriptors(IWorkbenchPart sourcePart) {
258 String srcId = sourcePart.getSite().getId();
259 ArrayList ids = getShowInPartIds(sourcePart);
260 ArrayList descs = new ArrayList ();
261 IViewRegistry reg = WorkbenchPlugin.getDefault().getViewRegistry();
262 for (Iterator i = ids.iterator(); i.hasNext();) {
263 String id = (String ) i.next();
264 if (!id.equals(srcId)) {
265 IViewDescriptor desc = reg.find(id);
266 if (desc != null) {
267 descs.add(desc);
268 }
269 }
270 }
271 return (IViewDescriptor[]) descs.toArray(new IViewDescriptor[descs
272 .size()]);
273 }
274
275 }
276 |
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