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1
11 package org.eclipse.jdt.internal.ui.util;
12
13 import org.eclipse.core.runtime.PlatformObject;
14
15 import org.eclipse.swt.widgets.Shell;
16
17 import org.eclipse.jface.action.MenuManager;
18 import org.eclipse.jface.util.ListenerList;
19 import org.eclipse.jface.viewers.ISelection;
20 import org.eclipse.jface.viewers.ISelectionChangedListener;
21 import org.eclipse.jface.viewers.ISelectionProvider;
22 import org.eclipse.jface.viewers.SelectionChangedEvent;
23
24 import org.eclipse.ui.IActionBars;
25 import org.eclipse.ui.IKeyBindingService;
26 import org.eclipse.ui.IViewSite;
27 import org.eclipse.ui.IWorkbenchPage;
28 import org.eclipse.ui.IWorkbenchPart;
29 import org.eclipse.ui.IWorkbenchWindow;
30
31 public class ViewSiteDecorator extends PlatformObject implements IViewSite {
32
33 private IViewSite fViewSite;
34 private ISelectionConverter fSelectionConverter;
35 private ISelectionProvider fSelectionProvider;
36
37 private class SelectionProviderDecorator implements ISelectionProvider {
38
39 private ISelectionProvider fProvider;
40 private SelectionChangedListener fListener;
41
42 public SelectionProviderDecorator(ISelectionProvider provider) {
43 fProvider= provider;
44 }
45 public ISelection getSelection() {
46 return fSelectionConverter.convert(fProvider.getSelection());
47 }
48 public void setSelection(ISelection selection) {
49 throw new UnsupportedOperationException  ();
50 }
51 public void addSelectionChangedListener(ISelectionChangedListener listener) {
52 if (fListener == null) {
53 fListener= new SelectionChangedListener();
54 fProvider.addSelectionChangedListener(fListener);
55 }
56 fListener.addListener(listener);
57 }
58 public void removeSelectionChangedListener(ISelectionChangedListener listener) {
59 if (fListener == null)
60 return;
61 fListener.removeListener(listener);
62 if (fListener.isEmpty()) {
63 fProvider.removeSelectionChangedListener(fListener);
64 fListener= null;
65 }
66 }
67 }
68
69 private class SelectionChangedListener implements ISelectionChangedListener {
70
71 ListenerList fListeners= new ListenerList();
72
73 public void selectionChanged(SelectionChangedEvent event) {
74 ISelection selection= fSelectionConverter.convert(event.getSelection());
75 SelectionChangedEvent newEvent= new SelectionChangedEvent(fSelectionProvider, selection);
76 Object [] listeners= fListeners.getListeners();
77 for (int i= 0; i < listeners.length; i++) {
78 ((ISelectionChangedListener)listeners[i]).selectionChanged(newEvent);
79 }
80 }
81 public void addListener(ISelectionChangedListener listener) {
82 fListeners.add(listener);
83 }
84 public void removeListener(ISelectionChangedListener listener) {
85 fListeners.remove(listener);
86 }
87 public boolean isEmpty() {
88 return fListeners.isEmpty();
89 }
90 }
91
92 public ViewSiteDecorator(IViewSite site, ISelectionConverter converter) {
93 fViewSite= site;
94 fSelectionConverter= converter;
95 ISelectionProvider provider= site.getSelectionProvider();
96 if (provider != null) {
97 fSelectionProvider= new SelectionProviderDecorator(provider);
98 }
99 }
100
103 public IWorkbenchPart getPart() {
104 return fViewSite.getPart();
105 }
106 public IActionBars getActionBars() {
107 return fViewSite.getActionBars();
108 }
109 public String getId() {
110 return fViewSite.getId();
111 }
112 public IKeyBindingService getKeyBindingService() {
113 return fViewSite.getKeyBindingService();
114 }
115 public String getPluginId() {
116 return fViewSite.getPluginId();
117 }
118 public String getRegisteredName() {
119 return fViewSite.getRegisteredName();
120 }
121 public String getSecondaryId() {
122 return fViewSite.getSecondaryId();
123 }
124 public void registerContextMenu(String menuId, MenuManager menuManager, ISelectionProvider selectionProvider) {
125 fViewSite.registerContextMenu(menuId, menuManager, selectionProvider);
126 }
127 public void registerContextMenu(MenuManager menuManager, ISelectionProvider selectionProvider) {
128 fViewSite.registerContextMenu(menuManager, selectionProvider);
129 }
130 public IWorkbenchPage getPage() {
131 return fViewSite.getPage();
132 }
133 public ISelectionProvider getSelectionProvider() {
134 return fSelectionProvider;
135 }
136 public Shell getShell() {
137 return fViewSite.getShell();
138 }
139 public IWorkbenchWindow getWorkbenchWindow() {
140 return fViewSite.getWorkbenchWindow();
141 }
142 public void setSelectionProvider(ISelectionProvider provider) {
143 throw new UnsupportedOperationException ();
144 }
145 }
146 |
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