|
1
11 package org.eclipse.ui.internal.navigator.actions;
12
13 import org.eclipse.core.runtime.IProgressMonitor;
14 import org.eclipse.core.runtime.ISafeRunnable;
15 import org.eclipse.core.runtime.IStatus;
16 import org.eclipse.core.runtime.SafeRunner;
17 import org.eclipse.core.runtime.Status;
18 import org.eclipse.jface.action.Action;
19 import org.eclipse.jface.action.IAction;
20 import org.eclipse.jface.viewers.ISelection;
21 import org.eclipse.jface.viewers.ISelectionChangedListener;
22 import org.eclipse.jface.viewers.IStructuredSelection;
23 import org.eclipse.jface.viewers.SelectionChangedEvent;
24 import org.eclipse.ui.IEditorInput;
25 import org.eclipse.ui.IEditorPart;
26 import org.eclipse.ui.IPartListener;
27 import org.eclipse.ui.IPropertyListener;
28 import org.eclipse.ui.IWorkbenchPage;
29 import org.eclipse.ui.IWorkbenchPart;
30 import org.eclipse.ui.internal.navigator.CommonNavigatorMessages;
31 import org.eclipse.ui.internal.navigator.NavigatorPlugin;
32 import org.eclipse.ui.internal.navigator.extensions.LinkHelperService;
33 import org.eclipse.ui.navigator.CommonNavigator;
34 import org.eclipse.ui.navigator.CommonViewer;
35 import org.eclipse.ui.navigator.ILinkHelper;
36 import org.eclipse.ui.navigator.INavigatorContentService;
37 import org.eclipse.ui.part.ISetSelectionTarget;
38 import org.eclipse.ui.progress.UIJob;
39
40
45 public class LinkEditorAction extends Action implements
46 ISelectionChangedListener, IAction, IPropertyListener {
47
48 private static final long BRIEF_DELAY = 100;
49
50 private IPartListener partListener;
51
52 private final CommonNavigator commonNavigator;
53
54 private final CommonViewer commonViewer;
55
56 private final LinkHelperService linkService;
57
58 private UIJob activateEditorJob = new UIJob(
59 CommonNavigatorMessages.Link_With_Editor_Job_) {
60 public IStatus runInUIThread(IProgressMonitor monitor) {
61
62 if (!commonViewer.getControl().isDisposed()) {
63 ISelection selection = commonViewer.getSelection();
64 if (selection != null && !selection.isEmpty()
65 && selection instanceof IStructuredSelection) {
66
67 IStructuredSelection sSelection = (IStructuredSelection) selection;
68 if (sSelection.size() == 1) {
69 ILinkHelper[] helpers = linkService
70 .getLinkHelpersFor(sSelection.getFirstElement());
71 if (helpers.length > 0) {
72 helpers[0].activateEditor(commonNavigator.getSite()
73 .getPage(), sSelection);
74 }
75 }
76 }
77 }
78 return Status.OK_STATUS;
79 }
80 };
81
82 private UIJob updateSelectionJob = new UIJob(
83 CommonNavigatorMessages.Link_With_Editor_Job_) {
84 public IStatus runInUIThread(IProgressMonitor monitor) {
85
86 if (!commonNavigator.getCommonViewer().getControl().isDisposed()) {
87 SafeRunner.run(new ISafeRunnable() {
88
89 public void run() throws Exception  {
90 IWorkbenchPage page = commonNavigator.getSite()
91 .getPage();
92 if (page != null) {
93 IEditorPart editor = page.getActiveEditor();
94 if (editor != null) {
95 IEditorInput input = editor.getEditorInput();
96 IStructuredSelection newSelection = linkService
97 .getSelectionFor(input);
98 if (!newSelection.isEmpty()) {
99 commonNavigator.selectReveal(newSelection);
100 }
101 }
102 }
103 }
104
105 public void handleException(Throwable e) {
106 String msg = e.getMessage() != null ? e.getMessage()
107 : e.toString();
108 NavigatorPlugin.logError(0, msg, e);
109 }
110 });
111
112 }
113
114 return Status.OK_STATUS;
115 }
116 };
117
118
129 public LinkEditorAction(CommonNavigator aNavigator, CommonViewer aViewer,
130 LinkHelperService linkHelperService) {
131 super(CommonNavigatorMessages.LinkEditorActionDelegate_0);
132 linkService = linkHelperService;
133 setToolTipText(CommonNavigatorMessages.LinkEditorActionDelegate_1);
134 commonNavigator = aNavigator;
135 commonViewer = aViewer;
136 init();
137 }
138
139
142 protected void init() {
143 partListener = new IPartListener() {
144
145 public void partActivated(IWorkbenchPart part) {
146 if (part instanceof IEditorPart) {
147 updateSelectionJob.schedule(BRIEF_DELAY);
148 }
149 }
150
151 public void partBroughtToTop(IWorkbenchPart part) {
152 if (part instanceof IEditorPart) {
153 updateSelectionJob.schedule(BRIEF_DELAY);
154 }
155 }
156
157 public void partClosed(IWorkbenchPart part) {
158
159 }
160
161 public void partDeactivated(IWorkbenchPart part) {
162 }
163
164 public void partOpened(IWorkbenchPart part) {
165 }
166 };
167
168 updateLinkingEnabled(commonNavigator.isLinkingEnabled());
169
170 commonNavigator.addPropertyListener(this);
171
172 }
175
176
179 public void dispose() {
180 commonNavigator.removePropertyListener(this);
181 if (isChecked()) {
182 commonViewer.removePostSelectionChangedListener(this);
183 commonNavigator.getSite().getPage()
184 .removePartListener(partListener);
185 }
186
187 }
188
189
192 public void run() {
193 commonNavigator.setLinkingEnabled(!commonNavigator.isLinkingEnabled());
194 }
195
196
201 public void selectionChanged(SelectionChangedEvent event) {
202 if (commonNavigator.isLinkingEnabled()) {
203 activateEditor();
204 }
205
206 }
207
208
211 protected void activateEditor() {
212 ISelection selection = commonViewer.getSelection();
213 if (selection != null && !selection.isEmpty()
214 && selection instanceof IStructuredSelection) {
215
219 activateEditorJob.schedule(BRIEF_DELAY);
220 }
221 }
222
223
229 public void propertyChanged(Object aSource, int aPropertyId) {
230 switch (aPropertyId) {
231 case CommonNavigator.IS_LINKING_ENABLED_PROPERTY:
232 updateLinkingEnabled(((CommonNavigator) aSource).isLinkingEnabled());
233 }
234 }
235
236
239 private void updateLinkingEnabled(boolean toEnableLinking) {
240 setChecked(toEnableLinking);
241
242 if (toEnableLinking) {
243
244 updateSelectionJob.schedule(BRIEF_DELAY);
245
246 commonViewer.addPostSelectionChangedListener(this);
247 commonNavigator.getSite().getPage().addPartListener(partListener);
248 } else {
249 commonViewer.removePostSelectionChangedListener(this);
250 commonNavigator.getSite().getPage()
251 .removePartListener(partListener);
252 }
253 }
254
255 }
256 |
Popular Tags |
Java API By Example, From Geeks To Geeks.